CN118652380B - Guar gum silane prepolymer modified solid acrylic resin and preparation method thereof - Google Patents
Guar gum silane prepolymer modified solid acrylic resin and preparation method thereof Download PDFInfo
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- CN118652380B CN118652380B CN202411133243.2A CN202411133243A CN118652380B CN 118652380 B CN118652380 B CN 118652380B CN 202411133243 A CN202411133243 A CN 202411133243A CN 118652380 B CN118652380 B CN 118652380B
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910000077 silane Inorganic materials 0.000 title claims abstract description 68
- 239000007787 solid Substances 0.000 title claims abstract description 56
- 239000004925 Acrylic resin Substances 0.000 title claims abstract description 55
- 229920000178 Acrylic resin Polymers 0.000 title claims abstract description 54
- 229920002907 Guar gum Polymers 0.000 title claims abstract description 41
- 239000000665 guar gum Substances 0.000 title claims abstract description 41
- 235000010417 guar gum Nutrition 0.000 title claims abstract description 41
- 229960002154 guar gum Drugs 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 244000007835 Cyamopsis tetragonoloba Species 0.000 claims abstract description 44
- 239000000178 monomer Substances 0.000 claims abstract description 41
- 239000003054 catalyst Substances 0.000 claims abstract description 37
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 21
- 239000008367 deionised water Substances 0.000 claims abstract description 21
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 19
- 239000000375 suspending agent Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 20
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- -1 acrylic ester Chemical class 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 5
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 5
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 5
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 2
- FVQMJJQUGGVLEP-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOOC(C)(C)C FVQMJJQUGGVLEP-UHFFFAOYSA-N 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 abstract description 13
- 239000000853 adhesive Substances 0.000 abstract description 9
- 230000001070 adhesive effect Effects 0.000 abstract description 9
- 229920002635 polyurethane Polymers 0.000 abstract description 9
- 239000004831 Hot glue Substances 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000003786 synthesis reaction Methods 0.000 abstract description 6
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 3
- 239000004840 adhesive resin Substances 0.000 abstract description 2
- 229920006223 adhesive resin Polymers 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 12
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 1
- 239000004823 Reactive adhesive Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- WYKYCHHWIJXDAO-UHFFFAOYSA-N tert-butyl 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOC(C)(C)C WYKYCHHWIJXDAO-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of adhesive resin synthesis, and discloses a guar gum silane prepolymer modified solid acrylic resin and a preparation method thereof, wherein the guar gum silane prepolymer modified solid acrylic resin comprises the following components: the composition comprises the following components: 100 parts by weight of acrylate monomer, 10-30 parts by weight of guar silane prepolymer, 1-5 parts by weight of catalyst, 1-5 parts by weight of suspending agent and 300 parts by weight of deionized water. According to the invention, a large amount of hydroxyl groups of the guar gum silane prepolymer are introduced into the solid acrylic resin, so that the compatibility and initial viscosity of the guar gum silane prepolymer with polyurethane hot melt adhesive can be increased, the flexibility of the adhesive is improved by introducing ether bonds, and meanwhile, the cementing strength and heat resistance of a final cured adhesive layer are improved by using the polyfunctional silane coupling agent.
Description
Technical Field
The invention relates to the technical field of adhesive resin synthesis, in particular to a guar silane prepolymer modified solid acrylate resin and a preparation method thereof.
Background
Reactive polyurethane hot melt adhesives (PUR) are polymers having high polymerization force formed between two adherends by utilizing the reaction and chain extension of structurally residual NCO groups with moisture in the air or attached to the surface of the adherends, and the adhesion, heat resistance and the like are remarkably improved. It has the characteristics of no solvent, high initial viscosity, quick positioning and the like of the hot melt adhesive, and has the performances of temperature resistance, moisture resistance, medium resistance and the like of the reactive adhesive. The adhesive is widely applied to the fields of furniture manufacture, plastic decorative plates, metal hardware and the like at present. Although the performance characteristics of the reactive polyurethane hot melt adhesive are very outstanding, some technical problems still exist at present, such as lowering the melting temperature and the melting viscosity, improving the initial adhesion, shortening the positioning time, enhancing the flexibility, the heat resistance, the flame retardance and the like of the product.
The traditional modification method is to add 5-10% of thermoplastic resin into polyurethane matrix resin, and then add a small amount of tackifying resin and additives such as antioxidant, catalyst, filler and the like for modification. Wherein the thermoplastic resin can shorten the positioning time of PUR, improve the cold setting time, initial adhesion, flexibility and film forming performance of the adhesive, and is basically solid acrylic resin at present. However, the compatibility of the solid acrylic resin and the PUR resin is poor, coarse particles are easy to appear under the condition of large addition amount, the heat resistance of the PUR can be greatly reduced while the melting temperature and the melting viscosity of the resin are reduced, and the application in the high-temperature and high-humidity environment can not be satisfied.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide the guar silane prepolymer modified solid acrylic resin and the preparation method thereof, wherein a large amount of hydroxyl groups of the guar silane prepolymer are introduced into the solid acrylic resin, so that the compatibility and initial viscosity of the guar silane prepolymer with polyurethane hot melt adhesive can be improved, the flexibility of the adhesive is improved by introducing ether bonds, and meanwhile, the cementing strength and heat resistance of a finally cured adhesive layer are improved by using the polyfunctional silane coupling agent.
In order to solve the technical problems, the invention provides the following technical scheme:
A guar gum silane prepolymer modified solid acrylic resin consists of the following components: 100 parts by weight of an acrylic monomer, 10-30 parts by weight of a guar silane prepolymer, 1-5 parts by weight of a catalyst, 1-5 parts by weight of a suspending agent and 300 parts by weight of deionized water; wherein, the guar gum silane prepolymer is prepared from 100 weight parts of guar gum, 20-60 weight parts of silane coupling agent monomer, 1-3 weight parts of potassium hydroxide and 200 weight parts of deionized water through the following steps:
(1) Adding guar gum and deionized water into a reaction kettle, stirring and heating to 80 ℃, preserving heat for 30min, and adding potassium hydroxide;
(2) Slowly dripping the silane coupling agent into the reaction kettle for 1-2 hours, stirring and heating to 90 ℃ after the silane coupling agent is completely dripped, preserving heat and reacting for 4 hours, and obtaining the guar gum silane prepolymer after the reaction is completed.
The guar gum silane prepolymer is used for modifying the solid acrylic resin, and the acrylic ester monomer is one or more of methyl methacrylate, butyl acrylate, n-butyl methacrylate and isobutyl methacrylate.
The guar gum silane prepolymer is used for modifying solid acrylic resin, and the catalyst is benzoyl peroxide or tert-butyl peroxy-2-ethylhexanoate.
The guar gum silane prepolymer modified solid acrylic resin, and the suspending agent is one or more of polyvinyl alcohol, hydroxyethyl cellulose and sodium polyacrylate.
The guar gum silane prepolymer is used for modifying solid acrylic resin, and the silane coupling agent is one of vinyl triethoxysilane, vinyl trimethoxysilane, vinyl tri (beta-methoxyethoxy) silane and methacryloxypropyl trimethoxysilane.
The guar gum silane prepolymer modified solid acrylic resin consists of the following components: 100 parts by weight of an acrylic monomer, 10-30 parts by weight of a guar silane prepolymer, 1-3 parts by weight of a catalyst, 1-5 parts by weight of a suspending agent and 300 parts by weight of deionized water.
The guar gum silane prepolymer modified solid acrylic resin consists of the following components: 70 parts by weight of methyl methacrylate, 30 parts by weight of butyl acrylate, 30 parts by weight of guar silane prepolymer, 1 part by weight of catalyst benzoyl peroxide, 1 part by weight of suspending agent polyvinyl alcohol and 300 parts by weight of deionized water.
The above-mentioned guar silane prepolymer modified solid acrylic resin, the guar silane prepolymer was prepared from 100 parts by weight of guar, 20 parts by weight of vinyltriethoxysilane, 1 part by weight of potassium hydroxide and 200 parts by weight of deionized water.
The guar gum silane prepolymer is prepared from 100 parts by weight of guar gum, 20-60 parts by weight of vinyl trimethoxy silane, 1-3 parts by weight of potassium hydroxide and 200 parts by weight of deionized water.
The preparation method of the guar gum silane prepolymer modified solid acrylic resin comprises the following steps:
(I) Adding deionized water, a suspending agent and a first part of acrylic ester monomer into a reaction kettle, introducing nitrogen, starting stirring, and heating to 80 ℃, wherein the first part of acrylic ester monomer accounts for 80% of the total weight of the acrylic ester monomer;
(II) adding a guar silane prepolymer, stirring for 30min, adding a first part of catalyst, and carrying out heat preservation reaction for 3h, wherein the first part of catalyst accounts for 80% of the total weight of the catalyst;
(III) adding a second acrylate monomer, adding a second catalyst, and carrying out heat preservation reaction for 2 hours, wherein the second acrylate monomer accounts for 20% of the total weight of the acrylate monomers, the first acrylate monomer and the second acrylate monomer are identical in composition, the second catalyst accounts for 20% of the total weight of the catalyst, and the first catalyst and the second catalyst are identical in composition;
and (IV) cooling, discharging, filtering and drying to obtain solid acrylic resin powder.
The technical scheme of the invention has the following beneficial technical effects:
the guar gum silane prepolymer is synthesized by guar gum and a silane coupling agent, unsaturated double bond is introduced to carry out free radical polymerization reaction with acrylic resin, so that the guar gum silane prepolymer can be connected to a main structure of the resin at a low temperature of suspension polymerization. The guar gum silane prepolymer has a large amount of hydroxyl groups introduced into the solid acrylic resin, so that the compatibility and initial viscosity of the guar gum silane prepolymer with polyurethane hot melt adhesive can be improved, the flexibility of the adhesive is improved by introducing ether bonds, and meanwhile, the cementing strength and heat resistance of a final cured adhesive layer are improved by using the polyfunctional silane coupling agent.
Detailed Description
Example 1
In this example, the raw materials consisted of 70 parts by weight of methyl methacrylate and 30 parts by weight of butyl acrylate, 10 parts by weight of guar silane prepolymer, 1 part by weight of catalyst benzoyl peroxide, 1 part by weight of suspending agent polyvinyl alcohol, 300 parts by weight of deionized water. The method comprises the following steps of:
(I) Adding deionized water, a suspending agent and a first part of acrylate mixed monomer into a reaction kettle, introducing nitrogen, starting stirring, and heating to 80 ℃, wherein the first part of acrylate mixed monomer accounts for 80% of the total weight of the acrylate mixed monomer;
(II) adding a guar silane prepolymer, stirring for 30min, adding a first part of catalyst, and carrying out heat preservation reaction for 3h, wherein the first part of catalyst accounts for 80% of the total weight of the catalyst;
(III) adding a second acrylate mixed monomer, and adding a second catalyst for thermal insulation reaction for 2 hours, wherein the second acrylate mixed monomer accounts for 20% of the total weight of the acrylate mixed monomer, the first acrylate mixed monomer and the second acrylate mixed monomer have the same composition, the second catalyst monomer accounts for 20% of the total weight of the catalyst, and the first catalyst and the second catalyst have the same composition;
and (IV) cooling, discharging, filtering and drying to obtain the guar silane prepolymer modified solid acrylic resin powder.
The guar gum silane prepolymer is prepared from 100 parts by weight of guar gum, 20 parts by weight of silane coupling agent monomer vinyl triethoxysilane, 1 part by weight of potassium hydroxide and 200 parts by weight of deionized water through the following steps:
Adding guar gum and deionized water into a reaction kettle, stirring and heating to 80 ℃, preserving heat for 30min, and adding potassium hydroxide; slowly dripping vinyl triethoxysilane into the reaction kettle for 1 hour, stirring and heating to 90 ℃ after the vinyl triethoxysilane is completely dripped, and preserving heat for 4 hours for reaction, thus obtaining the guar gum silane prepolymer after the reaction is completed.
Example 2
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the addition amount of the guar silane prepolymer in this example was 20 parts by weight.
Example 3
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the addition amount of the guar silane prepolymer in this example was 30 parts by weight.
Example 4
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the catalyst was added in an amount of 3 parts by weight in this example.
Example 5
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the catalyst was added in an amount of 5 parts by weight in this example.
Example 6
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the amount of the silane coupling agent monomer added in this example was 40 parts by weight.
Example 7
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the amount of the silane coupling agent monomer added in this example was 60 parts by weight.
Example 8
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the dropping time of the silane coupling agent monomer in this example was 2 hours.
Example 9
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the silane coupling agent monomer vinyl triethoxysilane in this example was replaced with vinyl trimethoxysilane.
Example 10
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the silane coupling agent monomer vinyl triethoxysilane in this example was replaced with vinyl tris (β -methoxyethoxy) silane.
Example 11
The guar silane prepolymer modified solid acrylic resin in this example differs from example 1 in that: the silane coupling agent monomer vinyl triethoxysilane in this example was replaced with methacryloxypropyl trimethoxysilane.
Comparative example 1
The solid acrylic resin in this comparative example differs from example 1 in that: no guar silane prepolymer is added during the synthesis of the solid acrylic resin.
Comparative example 2
The solid acrylic resin in this comparative example is different from comparative example 1 in that: guar gum was added during the synthesis of the solid acrylic resin in the same amount as the guar silane prepolymer in example 1.
Comparative example 3
The solid acrylic resin in this comparative example is different from comparative example 1 in that: vinyl triethoxysilane was added during the synthesis of the solid acrylic resin in the same amount as the guar silane prepolymer in example 1.
Comparative example 4
The solid acrylic resin in this comparative example is different from comparative example 1 in that: guar gum and vinyltriethoxysilane were added during the synthesis of the solid acrylic resin, the sum of the amounts of guar gum and vinyltriethoxysilane being the same as the amount of the guar gum prepolymer in example 1, and the weight ratio of guar gum and vinyltriethoxysilane in this example being the same as the weight ratio of guar gum to vinyltriethoxysilane in example 1.
The guar silane prepolymer modified solid acrylic resins produced in examples 1 to 11 and the solid acrylic resins produced in comparative examples 1 to 4 were subjected to the relevant performance test in the following manner, and the test results are shown in table 1:
(1) The softening point is measured according to the ring and ball method in the GB T4507-2014 asphalt softening point measuring method;
(2) The particle size is tested by a Markov solid powder particle size analyzer;
(3) Polyurethane compatibility: melting and stirring solid acrylic resin and polyurethane, and observing transparency after melting, wherein the melting is 0 grade, a small number of particles are 1 grade, and more particles are 2 grade;
(4) Bond strength: and after the adhesive is melted, coating the adhesive on the surface of the wood, and bonding the adhesive with a PVC edge banding strip for measurement.
Table 1 resin property comparison
From the data set forth in Table 1, it can be seen that the compatibility of the solid acrylic resin with polyurethane can be significantly improved and the adhesive strength of the solid acrylic resin can be improved to some extent by modifying the solid acrylic ester with the guar silane prepolymer.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While the obvious variations or modifications which are extended therefrom remain within the scope of the claims of this patent application.
Claims (8)
1. The guar silane prepolymer modified solid acrylic resin is characterized by comprising the following components: 100 parts by weight of acrylate monomers, 10-30 parts by weight of guar silane prepolymer, 1-5 parts by weight of catalyst, 1-5 parts by weight of suspending agent and 300 parts by weight of deionized water, wherein the acrylate monomers are methyl methacrylate and butyl acrylate; wherein, the guar gum silane prepolymer is prepared from 100 weight parts of guar gum, 20-60 weight parts of silane coupling agent monomer, 1-3 weight parts of potassium hydroxide and 200 weight parts of deionized water through the following steps:
(1) Adding guar gum and deionized water into a reaction kettle, stirring and heating to 80 ℃, preserving heat for 30min, and adding potassium hydroxide;
(2) Slowly dripping the silane coupling agent into a reaction kettle for 1-2 hours, stirring and heating to 90 ℃ after the silane coupling agent is completely dripped, preserving heat and reacting for 4 hours, and obtaining the guar gum silane prepolymer after the reaction is completed;
The silane coupling agent is one of vinyl triethoxysilane, vinyl trimethoxysilane, vinyl tri (beta-methoxyethoxy) silane and methacryloxypropyl trimethoxysilane.
2. The guar silane prepolymer modified solid acrylic resin of claim 1, wherein the catalyst is benzoyl peroxide or t-butyl peroxy-2-ethylhexanoate.
3. The guar silane prepolymer modified solid acrylic resin of claim 1, wherein the suspending agent is one or more of polyvinyl alcohol, hydroxyethyl cellulose, and sodium polyacrylate.
4. The guar silane prepolymer modified solid acrylic resin of claim 1, consisting of: 100 parts by weight of an acrylic monomer, 10-30 parts by weight of a guar silane prepolymer, 1-3 parts by weight of a catalyst, 1-5 parts by weight of a suspending agent and 300 parts by weight of deionized water.
5. The guar silane prepolymer modified solid acrylic resin according to claim 1, characterized by being composed of the following components: 70 parts by weight of methyl methacrylate, 30 parts by weight of butyl acrylate, 30 parts by weight of guar silane prepolymer, 1 part by weight of catalyst benzoyl peroxide, 1 part by weight of suspending agent polyvinyl alcohol and 300 parts by weight of deionized water.
6. The modified solid acrylic resin of claim 1, wherein the guar silane prepolymer is prepared from 100 parts by weight guar gum, 20 parts by weight vinyltriethoxysilane, 1 part by weight potassium hydroxide and 200 parts by weight deionized water.
7. The modified solid acrylic resin of claim 1, wherein the guar silane prepolymer is prepared from 100 parts by weight of guar gum, 20-60 parts by weight of vinyltrimethoxysilane, 1-3 parts by weight of potassium hydroxide and 200 parts by weight of deionized water.
8. A process for preparing a guar silane prepolymer modified solid acrylic resin as claimed in claim 1, comprising the steps of:
(I) Adding deionized water, a suspending agent and a first part of acrylic ester monomer into a reaction kettle, introducing nitrogen, starting stirring, and heating to 80 ℃, wherein the first part of acrylic ester monomer accounts for 80% of the total weight of the acrylic ester monomer;
(II) adding a guar silane prepolymer, stirring for 30min, adding a first part of catalyst, and carrying out heat preservation reaction for 3h, wherein the first part of catalyst accounts for 80% of the total weight of the catalyst;
(III) adding a second acrylate monomer, adding a second catalyst, and carrying out heat preservation reaction for 2 hours, wherein the second acrylate monomer accounts for 20% of the total weight of the acrylate monomers, the first acrylate monomer and the second acrylate monomer are identical in composition, the second catalyst accounts for 20% of the total weight of the catalyst, and the first catalyst and the second catalyst are identical in composition;
and (IV) cooling, discharging, filtering and drying to obtain solid acrylic resin powder.
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| CN103666343A (en) * | 2013-12-10 | 2014-03-26 | 四川之江化工新材料有限公司 | Preparation method of bentonite-xanthan gum modified lithium ion battery adhesive |
| CN116478640A (en) * | 2023-04-26 | 2023-07-25 | 陕西科技大学 | Biomass/polyacrylate composite binder and preparation method and application thereof |
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| US7404875B2 (en) * | 2004-04-28 | 2008-07-29 | Georgia-Pacific Consumer Products Lp | Modified creping adhesive composition and method of use thereof |
| KR102475492B1 (en) * | 2022-06-17 | 2022-12-08 | 주식회사 오엘케이 | Adhesive Composition for Partially Repairing Sewer Pipe Comprising Urethane Resin and Repairing Methods Using Thereof |
| CN116285784A (en) * | 2023-03-20 | 2023-06-23 | 昆山久庆新材料科技有限公司 | Plasticizer-resistant hot-melt pressure-sensitive adhesive and preparation method thereof |
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| CN103666343A (en) * | 2013-12-10 | 2014-03-26 | 四川之江化工新材料有限公司 | Preparation method of bentonite-xanthan gum modified lithium ion battery adhesive |
| CN116478640A (en) * | 2023-04-26 | 2023-07-25 | 陕西科技大学 | Biomass/polyacrylate composite binder and preparation method and application thereof |
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