CN110527260B - High-toughness regenerated environment-friendly plastic and processing technology thereof - Google Patents
High-toughness regenerated environment-friendly plastic and processing technology thereof Download PDFInfo
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- 229920003023 plastic Polymers 0.000 title claims abstract description 131
- 239000004033 plastic Substances 0.000 title claims abstract description 131
- 238000012545 processing Methods 0.000 title claims abstract description 13
- 238000005516 engineering process Methods 0.000 title abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 139
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 83
- 239000011347 resin Substances 0.000 claims abstract description 39
- 229920005989 resin Polymers 0.000 claims abstract description 39
- 239000004970 Chain extender Substances 0.000 claims abstract description 37
- 229920001400 block copolymer Polymers 0.000 claims abstract description 29
- 239000000945 filler Substances 0.000 claims abstract description 29
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000012745 toughening agent Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
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- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000004014 plasticizer Substances 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 8
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 29
- 239000011787 zinc oxide Substances 0.000 claims description 15
- HMOZDINWBHMBSQ-UHFFFAOYSA-N 2-[3-(4,5-dihydro-1,3-oxazol-2-yl)phenyl]-4,5-dihydro-1,3-oxazole Chemical compound O1CCN=C1C1=CC=CC(C=2OCCN=2)=C1 HMOZDINWBHMBSQ-UHFFFAOYSA-N 0.000 claims description 14
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims description 14
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 13
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 13
- 239000002202 Polyethylene glycol Substances 0.000 claims description 13
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 13
- 229920001223 polyethylene glycol Polymers 0.000 claims description 13
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- 238000005520 cutting process Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 239000004800 polyvinyl chloride Substances 0.000 description 49
- 229920000915 polyvinyl chloride Polymers 0.000 description 49
- 229920001707 polybutylene terephthalate Polymers 0.000 description 35
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 6
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- KKKKCPPTESQGQH-UHFFFAOYSA-N 2-(4,5-dihydro-1,3-oxazol-2-yl)-4,5-dihydro-1,3-oxazole Chemical compound O1CCN=C1C1=NCCO1 KKKKCPPTESQGQH-UHFFFAOYSA-N 0.000 description 4
- 239000004709 Chlorinated polyethylene Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000005543 nano-size silicon particle Substances 0.000 description 4
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical group O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
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- 244000005700 microbiome Species 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007142 ring opening reaction Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- -1 polybutylene terephthalate Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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Abstract
The invention discloses a high-toughness regenerated environment-friendly plastic and a processing technology thereof, and the technical scheme is characterized in that the raw materials comprise the following components in parts by weight: 24-36 parts of waste PVC plastic, 22-46 parts of waste ABS plastic, 28-34 parts of PBT resin, 15-22 parts of inorganic nano filler, 3-9 parts of plasticizer, 4-10 parts of toughening agent, 26-38 parts of styrene-ethylene-butadiene block copolymer, 5-16 parts of chain extender, 6-10 parts of dispersant and 2.2-2.7 parts of antioxidant, so that the effect of improving the toughness of the regenerated environment-friendly plastic is achieved; the processing technology of the high-toughness regenerated environment-friendly plastic comprises the following steps: s1: crushing; s2: cleaning; s3: drying; s4: weighing raw materials for later use; s5: mixing waste ABS plastic with a chain extender to obtain a waste ABS plastic mixture; s6: adding the rest raw materials together, and mixing in an open mill; s7: drawing and forming; s8: and (6) granulating.
Description
The invention relates to the field of recycled plastics, in particular to a high-toughness recycled environment-friendly plastic and a processing technology thereof.
Background
At present, China is in the rapid economic development stage, economic development means that a large amount of resources need to be consumed and a large amount of waste is generated, the environmental problems are gradually paid attention to by people, and recycling of resources and development of circular economy are important shells.
Plastics, which are materials having good processability and good workability, are used in many aspects of life, and the amount of waste plastics is also rapidly increasing. The plastic waste generated in our country is nearly 3000 million tons every year, but the recovery rate is less than 10%, most treatment means are landfill and incineration, the landfill needs to occupy a large volume due to low density of the plastic, and in addition, the plastic cannot be degraded in the soil due to lack of microorganisms and enzymes for decomposing the plastic in the nature and continuously exists in the form of macromolecules to form permanent garbage, so that the transmission of substances and heat in the soil can be influenced, and the growth of microorganisms can be inhibited.
Therefore, the recovery and reutilization of the waste plastics are the necessary way to solve the problem of the waste plastics and realize the sustainable development of the plastic industry. After the waste plastic is used, the toughness of the waste plastic is reduced due to oxidative decomposition, the toughness of the waste plastic is improved, and the utilization of the waste plastic can be effectively improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the high-toughness regenerated environment-friendly plastic to achieve the effect of improving the toughness of the regenerated environment-friendly plastic.
The technical purpose of the invention is realized by the following technical scheme:
a high-toughness regenerated environment-friendly plastic comprises the following raw materials in parts by weight: 24-36 parts of waste PVC plastic, 22-46 parts of waste ABS plastic, 28-34 parts of PBT resin, 15-22 parts of inorganic nano filler, 3-9 parts of plasticizer, 4-10 parts of toughening agent, 26-38 parts of styrene-ethylene-butadiene block copolymer, 5-16 parts of chain extender, 6-10 parts of dispersant and 2.2-2.7 parts of antioxidant.
The invention is further provided with 28-32 parts of waste PVC plastic, 30-38 parts of waste ABS plastic, 30-32 parts of PBT resin, 16-20 parts of inorganic nano filler, 5-7 parts of plasticizer, 6-8 parts of toughening agent, 29-35 parts of styrene-ethylene-butadiene block copolymer, 8-12 parts of chain extender, 7-9 parts of dispersant and 2.4-2.6 parts of antioxidant by weight.
By adopting the technical scheme, when the waste PVC plastics and the waste ABS plastics need to be recycled, the toughness of the waste PVC plastics and the waste ABS plastics is reduced due to oxidative decomposition of the waste PVC plastics and the waste ABS plastics in the using process, so that the toughness and elasticity of the regenerated plastics can be effectively improved by adding the PBT resin and the styrene-ethylene-butadiene block copolymer, and meanwhile, the PBT resin has good heat resistance, toughness and fatigue resistance; the styrene-ethylene-butadiene block copolymer has the characteristics of excellent tensile strength, large surface friction coefficient, good low-temperature performance, good processability and the like.
The addition of the inorganic nano-filler can increase the toughness of the regenerated plastic, meanwhile, the inorganic nano-filler has a reinforcing effect and is beneficial to improving the strength of the regenerated plastic, compared with the inorganic filler, the inorganic nano-filler has small particle size and better dispersion performance in waste PVC (polyvinyl chloride) plastics, waste ABS (acrylonitrile butadiene styrene) plastics, PBT (polybutylene terephthalate) resin and styrene-ethylene-butadiene block copolymers, and the inorganic nano-filler is beneficial to fully dispersing the inorganic nano-filler under the action of a dispersing agent. The surface of the inorganic nano filler has a large amount of unsaturated residual bonds and active groups, the surface activity is high, and the inorganic nano filler can generate physical or chemical crosslinking with a macromolecular chain, so that more microcracks are generated on the material under the medium-level action, more impact energy is absorbed, and the toughness of the regenerated plastic is effectively improved.
The addition of the plasticizer and the toughening agent effectively improves the toughness of the regenerated plastic, but the plasticizer can increase the flexibility between layers of the waste PVC plastic, the waste ABS plastic, the PBT resin and the styrene-ethylene-butadiene block copolymer, and improve the fluidity of the waste PVC plastic, the waste ABS plastic, the PBT resin and the styrene-ethylene-butadiene block copolymer, so that the impact toughness of the regenerated plastic is improved; the toughening agent can effectively reduce the brittleness of the recycled plastic, thereby improving the impact resistance of the recycled plastic.
The addition of the chain extender can accelerate the whole reaction speed, the process flow is simple, the chain extender has strong adaptability and operability, and the addition of the chain extender enables the chain extender to react with the waste ABS plastic, so that the chain extender is helpful for connecting a plurality of molecular chains of the waste ABS plastic, the relative molecular mass is improved, and the toughness of the ABS plastic is recovered.
The antioxidant is added, so that the antioxidant performance of the recycled plastic can be further improved, and the service life of the recycled plastic is prolonged.
The invention is further provided that the plasticizer is dioctyl phthalate.
By adopting the technical scheme, the dioctyl phthalate has good compatibility with the waste PVC plastic, the waste ABS plastic, the PBT resin and the styrene-ethylene-butadiene block copolymer, the mixing performance is good, the plasticizing efficiency is high, and meanwhile, the regenerated plastic has good low-temperature flexibility.
The invention is further provided that the toughening agent adopts one or a mixture of two of hyperbranched polyesteramide and chlorinated polyethylene.
By adopting the technical scheme, the addition of the hyperbranched polyesteramide can reduce the melt viscosity of a system of the waste PVC plastics, the waste ABS plastics, the PBT resin and the styrene-ethylene-butadiene block copolymer, improve the processability of the regenerated plastics and ensure that the regenerated plastics have excellent mechanical properties; the chlorinated polyethylene has good compatibility with waste PVC plastics, waste ABS plastics, PBT resin and styrene-ethylene-butadiene block copolymer, and has excellent toughening performance.
The invention further provides that the inorganic nano-filler comprises one or more of nano-zinc oxide, nano-titanium dioxide and nano-silicon dioxide.
By adopting the technical scheme, the nano zinc oxide, the nano titanium dioxide and the nano silicon dioxide can play a certain toughening role, and simultaneously the rigidity of the recycled plastic can be improved.
The invention further provides that the chain extender adopts one or two of 2,2 '- (1, 3-phenylene) -bisoxazoline and 2, 2' -bis (2-oxazoline).
By adopting the technical scheme, 2,2 '- (1, 3-phenylene) -bisoxazoline and 2, 2' -bis (2-oxazoline) belong to dioxin chain extenders, and the dioxin chain extenders have chemical property of active waves, so that the ring opening of the ABS resin is facilitated, the molecular chain of the ABS resin is lengthened, and the toughness of the regenerated plastic is facilitated to be improved.
The invention is further configured that the dispersant is polyethylene glycol.
By adopting the technical scheme, the polyethylene glycol has good water solubility and good compatibility with the waste PVC plastic, the waste ABS plastic, the PBT resin and the styrene-ethylene-butadiene block copolymer, thereby being beneficial to uniformly mixing the waste plastic and the inorganic nano-filler and improving the processing performance.
The invention is further provided that the antioxidant is 2,6 di-tert-butyl-p-cresol.
By adopting the technical scheme, the 2, 6-di-tert-butyl-p-cresol has a certain protection effect on heat and oxygen aging, and meanwhile, the antioxidant is matched with the nano zinc oxide, the nano titanium dioxide and the nano silicon dioxide for use, so that the durability of the regenerated plastic is improved.
Object two of the present invention: the processing technology of the high-toughness regenerated environment-friendly plastic comprises the following steps:
s1: crushing, namely crushing the waste PVC plastic and the waste ABS plastic;
s2: cleaning, namely cleaning the crushed waste PVC plastics and waste ABS plastics to remove impurities on the surfaces of the waste PVC plastics and the waste ABS plastics;
s3: drying;
s4: weighing the waste PVC plastic, the waste ABS plastic and the PBT resin according to the proportion for later use;
s5: firstly, mixing the waste ABS plastic and the chain extender in proportion to obtain a waste ABS plastic mixture;
s6: adding the rest raw materials together, and carrying out open milling, melting and mixing for 10-15min at the temperature of 185-205 ℃ to obtain a sample wafer;
s7: cutting the sample wafer in the S6 into pieces, and drawing wires and forming at the injection molding temperature of 220-250 ℃;
s8: and (6) granulating.
By adopting the technical scheme, the impurities on the surfaces of the waste PVC plastic and the waste ABS plastic are cleaned, so that the influence of the impurities on the performance of the regenerated plastic is prevented; and then, the ABS plastic and the chain extender are mixed, so that the ABS plastic and the chain extender are mixed, the ring opening of the ABS plastic in the mixing process is facilitated, and the toughness of the ABS plastic is improved.
In conclusion, the invention has the following beneficial effects:
1. after the waste PVC plastic and the waste ABS plastic are mixed with the PBT resin and the styrene-ethylene-butadiene block copolymer, the effect of recycling the waste plastic can be achieved, and the toughness and the strength of the waste plastic are improved;
2. the inorganic nano filler has small particle size and good dispersion performance; the inorganic nano filler generates stress concentration in the deformation of the regenerated plastic to trigger the resin around the nano filler particles to yield, so that a large amount of deformation work is absorbed to hinder the expansion of cracks in the resin, and the effect of preventing destructive cracks is also achieved;
3. the addition of the chain extender is beneficial to the reaction of the chain extender and the waste ABS plastic, thereby being beneficial to the connection of a plurality of molecular chains of the waste ABS plastic and recovering the toughness of the ABS plastic, and further indirectly improving the toughness of the regenerated plastic.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
A high-toughness regenerated environment-friendly plastic comprises the following raw materials in parts by weight: 24 parts of waste PVC plastic, 22 parts of waste ABS plastic, 28 parts of PBT resin, 15 parts of inorganic nano filler, 3 parts of dioctyl phthalate, 4 parts of toughening agent, 26 parts of styrene-ethylene-butadiene block copolymer, 5 parts of chain extender, 6 parts of polyethylene glycol and 2.2 parts of 2, 6-di-tert-butyl-p-cresol;
the inorganic nano-filler adopts nano zinc oxide;
the toughening agent adopts hyperbranched polyesteramide;
the chain extender adopts 2, 2' - (1, 3-phenylene) -bisoxazoline;
a processing technology of high-toughness regenerated environment-friendly plastic comprises the following steps:
s1: crushing, namely crushing the waste PVC plastic and the waste ABS plastic into strips with the length of 2 cm;
s2: cleaning, namely cleaning the crushed waste PVC plastics and waste ABS plastics to remove impurities on the surfaces of the waste PVC plastics and the waste ABS plastics;
s3: drying at 60 deg.C for 8 h;
s4: weighing the waste PVC plastic, the waste ABS plastic and the PBT resin according to the proportion for later use;
s5: firstly, mixing the waste ABS plastic and the chain extender in proportion to obtain a waste ABS plastic mixture;
s6: adding the waste ABS plastic mixture, the waste PVC plastic, the PBT resin, the nano zinc oxide, the dioctyl phthalate, the hyperbranched polyesteramide, the styrene-ethylene-butadiene block copolymer, the 2, 2' - (1, 3-phenylene) -bisoxazoline, the polyethylene glycol and the 2, 6-di-tert-butyl-p-cresol in the S5 into a milling machine, and milling, melting and mixing for 10min at 185 ℃ to obtain a sample sheet;
s7: cutting the sample wafer in S6 into pieces, and drawing wires and forming at the injection molding temperature of 220 ℃;
s8: and (6) granulating.
Example 2
A high-toughness regenerated environment-friendly plastic comprises the following raw materials in parts by weight: 28 parts of waste PVC plastic, 30 parts of waste ABS plastic, 30 parts of PBT resin, 16 parts of inorganic nano filler, 5 parts of dioctyl phthalate, 6 parts of toughening agent, 29 parts of styrene-ethylene-butadiene block copolymer, 8 parts of chain extender, 7 parts of polyethylene glycol and 2.4 parts of 2, 6-di-tert-butyl-p-cresol;
the inorganic nano-filler adopts nano zinc oxide;
the toughening agent adopts hyperbranched polyesteramide;
the chain extender adopts 2, 2' - (1, 3-phenylene) -bisoxazoline;
a processing technology of high-toughness regenerated environment-friendly plastic comprises the following steps:
s1: crushing, namely crushing the waste PVC plastic and the waste ABS plastic into strips with the length of 2 cm;
s2: cleaning, namely cleaning the crushed waste PVC plastics and waste ABS plastics to remove impurities on the surfaces of the waste PVC plastics and the waste ABS plastics;
s3: drying at 60 deg.C for 8 h;
s4: weighing the waste PVC plastic, the waste ABS plastic and the PBT resin according to the proportion for later use;
s5: firstly, mixing the waste ABS plastic and the chain extender in proportion to obtain a waste ABS plastic mixture;
s6: adding the waste ABS plastic mixture, the waste PVC plastic, the PBT resin, the nano zinc oxide, the dioctyl phthalate, the hyperbranched polyesteramide, the styrene-ethylene-butadiene block copolymer, the 2, 2' - (1, 3-phenylene) -bisoxazoline, the polyethylene glycol and the 2, 6-di-tert-butyl-p-cresol in the S5 into a milling machine, and milling, melting and mixing for 10min at 185 ℃ to obtain a sample sheet;
s7: cutting the sample wafer in S6 into pieces, and drawing wires and forming at the injection molding temperature of 220 ℃;
s8: and (6) granulating.
Example 3
A high-toughness regenerated environment-friendly plastic comprises the following raw materials in parts by weight: 30 parts of waste PVC plastic, 34 parts of waste ABS plastic, 31 parts of PBT resin, 19 parts of inorganic nano filler, 6 parts of dioctyl phthalate, 7 parts of toughening agent, 32 parts of styrene-ethylene-butadiene block copolymer, 11 parts of chain extender, 8 parts of polyethylene glycol and 2.5 parts of 2, 6-di-tert-butyl-p-cresol; the inorganic nano-filler adopts nano zinc oxide;
the toughening agent adopts hyperbranched polyesteramide;
the chain extender adopts 2, 2' - (1, 3-phenylene) -bisoxazoline;
a processing technology of high-toughness regenerated environment-friendly plastic comprises the following steps:
s1: crushing, namely crushing the waste PVC plastic and the waste ABS plastic into strips with the length of 2 cm;
s2: cleaning, namely cleaning the crushed waste PVC plastics and waste ABS plastics to remove impurities on the surfaces of the waste PVC plastics and the waste ABS plastics;
s3: drying at 60 deg.C for 8 h;
s4: weighing the waste PVC plastic, the waste ABS plastic and the PBT resin according to the proportion for later use;
s5: firstly, mixing the waste ABS plastic and the chain extender in proportion to obtain a waste ABS plastic mixture;
s6: adding the waste ABS plastic mixture, the waste PVC plastic, the PBT resin, the nano zinc oxide, the dioctyl phthalate, the hyperbranched polyesteramide, the styrene-ethylene-butadiene block copolymer, the 2, 2' - (1, 3-phenylene) -bisoxazoline, the polyethylene glycol and the 2, 6-di-tert-butyl-p-cresol in the S5 into a milling machine, and carrying out milling, melting and mixing for 13min at the temperature of 195 ℃ to obtain a sample sheet;
s7: cutting the sample wafer in S6, and drawing wires and forming at the injection molding temperature of 235 ℃;
s8: and (6) granulating.
Example 4
A high-toughness regenerated environment-friendly plastic comprises the following raw materials in parts by weight: 32 parts of waste PVC plastic, 38 parts of waste ABS plastic, 32 parts of PBT resin, 20 parts of inorganic nano filler, 7 parts of dioctyl phthalate, 8 parts of toughening agent, 35 parts of styrene-ethylene-butadiene block copolymer, 12 parts of chain extender, 9 parts of polyethylene glycol and 2.6 parts of 2, 6-di-tert-butyl-p-cresol; the inorganic nano-filler adopts nano zinc oxide;
the toughening agent adopts hyperbranched polyesteramide;
the chain extender adopts 2, 2' - (1, 3-phenylene) -bisoxazoline;
a processing technology of high-toughness regenerated environment-friendly plastic comprises the following steps:
s1: crushing, namely crushing the waste PVC plastic and the waste ABS plastic into strips with the length of 2 cm;
s2: cleaning, namely cleaning the crushed waste PVC plastics and waste ABS plastics to remove impurities on the surfaces of the waste PVC plastics and the waste ABS plastics;
s3: drying at 60 deg.C for 8 h;
s4: weighing the waste PVC plastic, the waste ABS plastic and the PBT resin according to the proportion for later use;
s5: firstly, mixing the waste ABS plastic and the chain extender in proportion to obtain a waste ABS plastic mixture;
s6: adding the waste ABS plastic mixture, the waste PVC plastic, the PBT resin, the nano zinc oxide, the dioctyl phthalate, the hyperbranched polyesteramide, the styrene-ethylene-butadiene block copolymer, the 2, 2' - (1, 3-phenylene) -bisoxazoline, the polyethylene glycol and the 2, 6-di-tert-butyl-p-cresol in the S5 into a milling machine, and milling, melting and mixing for 15min at the temperature of 205 ℃ to obtain a sample sheet;
s7: cutting the sample wafer in S6, and drawing wires and forming at the injection molding temperature of 250 ℃;
s8: and (6) granulating.
Example 5
A high-toughness regenerated environment-friendly plastic comprises the following raw materials in parts by weight: 36 parts of waste PVC plastic, 46 parts of waste ABS plastic, 34 parts of PBT resin, 22 parts of inorganic nano filler, 9 parts of dioctyl phthalate, 10 parts of toughening agent, 38 parts of styrene-ethylene-butadiene block copolymer, 16 parts of chain extender, 10 parts of polyethylene glycol and 2.7 parts of 2, 6-di-tert-butyl-p-cresol; the inorganic nano-filler adopts nano zinc oxide;
the toughening agent adopts hyperbranched polyesteramide;
the chain extender adopts 2, 2' - (1, 3-phenylene) -bisoxazoline;
a processing technology of high-toughness regenerated environment-friendly plastic comprises the following steps:
s1: crushing, namely crushing the waste PVC plastic and the waste ABS plastic into strips with the length of 2 cm;
s2: cleaning, namely cleaning the crushed waste PVC plastics and waste ABS plastics to remove impurities on the surfaces of the waste PVC plastics and the waste ABS plastics;
s3: drying at 60 deg.C for 8 h;
s4: weighing the waste PVC plastic, the waste ABS plastic and the PBT resin according to the proportion for later use;
s5: firstly, mixing the waste ABS plastic and the chain extender in proportion to obtain a waste ABS plastic mixture;
s6: adding the waste ABS plastic mixture, the waste PVC plastic, the PBT resin, the nano zinc oxide, the dioctyl phthalate, the hyperbranched polyesteramide, the styrene-ethylene-butadiene block copolymer, the 2, 2' - (1, 3-phenylene) -bisoxazoline, the polyethylene glycol and the 2, 6-di-tert-butyl-p-cresol in the S5 into a milling machine, and milling, melting and mixing for 15min at the temperature of 205 ℃ to obtain a sample sheet;
s7: cutting the sample wafer in S6, and drawing wires and forming at the injection molding temperature of 250 ℃;
s8: and (6) granulating.
Example 6
The high-toughness regenerated environment-friendly plastic is different from the regenerated environment-friendly plastic in example 3 in that the inorganic nano filler is nano titanium dioxide.
Example 7
The high-toughness regenerated environment-friendly plastic is different from the regenerated environment-friendly plastic in example 3 in that the inorganic nano filler is nano silicon dioxide.
Example 8
The high-toughness regenerated environment-friendly plastic is different from the example 3 in that chlorinated polyethylene is adopted as a toughening agent.
Example 9
The high-toughness regenerated environment-friendly plastic is different from the regenerated environment-friendly plastic in example 3 in that 2, 2' -bis (2-oxazoline) is adopted as a chain extender.
Example 10
A high-toughness recycled environment-friendly plastic, which is different from example 3 in that 30 parts of a PBT resin, 34 parts of a styrene-ethylene-butadiene block copolymer, that is, a PBT resin: styrene-ethylene-butadiene block copolymer 1: 1.13.
example 11
A high-toughness recycled environment-friendly plastic, which is different from example 3 in that 31 parts of a PBT resin, 37 parts of a styrene-ethylene-butadiene block copolymer, that is, a PBT resin: styrene-ethylene-butadiene block copolymer 1.03: 1.16.
performance test the recycled plastics of examples 1 to 11 were subjected to performance test, and the test results are shown in Table 1.
Testing the tensile strength of the recycled plastic according to GB/T1040.2-2006, wherein the testing speed is 50 nm/min;
the bending strength is tested according to GB/T9341-2008, and the testing speed is 2 mm/min;
the impact strength is tested according to GB/T1043-2008, V-shaped gaps with the depth of 2 mm.
TABLE 1 recycled plastics test results Table
From table 1, it can be seen that:
in examples 1 to 5, the performances of example 3 are all better than those of examples 1 to 2 and examples 4 to 5, which shows that the mutual synergistic effect of the mixture ratio in example 3 is better than that of examples 1 to 2 and examples 4 to 5, and the relationship between the mixture ratios in example 3 is helpful for improving the toughness and strength of the recycled environment-friendly plastic;
in examples 6 to 9, when the nano zinc oxide was replaced by the same amount of nano titanium dioxide and nano silica, the performances of examples 6 and 7 were substantially the same as those of example 3, and therefore, the same effects were obtained with the nano titanium dioxide and the nano silica; when chlorinated polyethylene is used for replacing hyperbranched polyesteramide, the performances of the example 8 and the example 3 are basically the same, which shows that the same effect can be achieved; after 2,2 '-bis (2-oxazoline) is used for replacing 2, 2' - (1, 3-phenylene) -bisoxazoline, the performances of the example 9 and the example 3 are basically consistent, which shows that the dioxin chain extender can effectively improve the strength and the toughness of the regenerated plastic;
in examples 10 to 11, the tensile strength in examples 10 to 11 was lower than that in example 3, but the elongation at break, notched impact strength, and flexural strength in examples 10 to 11 were all higher than those in example 3, which indicates that the increase in the amount of the PBT resin in the recycled eco-plastic contributes to the improvement in the tensile strength of the recycled eco-plastic, but also decreases the elongation at break, notched impact strength, and flexural strength of the recycled eco-plastic, so when the amount of the PBT resin: the weight ratio of the styrene-ethylene-butadiene block copolymer is (1-1.03): (1.13-1.16), the strength and toughness of the recycled environment-friendly plastic can be effectively improved.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and the person skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but is protected by the patent law within the scope of the claims of the present invention.
Claims (3)
1. A high-toughness regenerated environment-friendly plastic is characterized in that: the raw materials comprise the following components in parts by weight: 24-36 parts of waste PVC plastic, 22-46 parts of waste ABS plastic, 30-31 parts of PBT resin, 15-22 parts of inorganic nano filler, 3-9 parts of plasticizer, 4-10 parts of toughening agent, 34-37 parts of styrene-ethylene-butadiene block copolymer, 5-16 parts of chain extender, 6-10 parts of dispersant and 2.2-2.7 parts of antioxidant;
the plasticizer adopts dioctyl phthalate;
the toughening agent adopts hyperbranched polyesteramide;
the inorganic nano filler adopts nano zinc oxide;
the chain extender adopts 2, 2' - (1, 3-phenylene) -bisoxazoline;
the dispersing agent adopts polyethylene glycol.
2. The high-toughness recycled environment-friendly plastic as claimed in claim 1, wherein: the antioxidant adopts 2, 6-ditertbutyl-p-cresol.
3. The process for processing the high-toughness recycled environment-friendly plastic as claimed in claim 1 or 2, wherein the process comprises the following steps:
s1: crushing, namely crushing the waste PVC plastic and the waste ABS plastic;
s2: cleaning, namely cleaning the crushed waste PVC plastics and waste ABS plastics to remove impurities on the surfaces of the waste PVC plastics and the waste ABS plastics;
s3: drying;
s4: weighing the waste PVC plastic, the waste ABS plastic and the PBT resin according to the proportion for later use;
s5: firstly, mixing the waste ABS plastic and the chain extender in proportion to obtain a waste ABS plastic mixture;
s6: adding the rest raw materials together, and carrying out open milling, melting and mixing for 10-15min at the temperature of 185-205 ℃ to obtain a sample wafer;
s7: cutting the sample wafer in the S6 into pieces, and drawing wires and forming at the injection molding temperature of 220-250 ℃;
s8: and (6) granulating.
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| GB1298880A (en) * | 1970-03-03 | 1972-12-06 | Berk Ltd | Improvements in or relating to polymer compositions |
| CN103146094A (en) * | 2011-12-07 | 2013-06-12 | 滁州格美特科技有限公司 | Modified plastic, and preparation method and application thereof |
| CN104371188A (en) * | 2014-02-21 | 2015-02-25 | 解波 | High strength and high gloss recycled plastic and preparation method thereof |
| CN105968630A (en) * | 2016-05-18 | 2016-09-28 | 深圳市志海实业股份有限公司 | High-temperature plastic alloy material |
| CN106117954A (en) * | 2016-07-28 | 2016-11-16 | 广东天保新材料有限责任公司 | A kind of oil resistant, low temperature resistant regeneration ABS/PBT alloy material |
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