CN101508818A - ABS//PET alloy and method for producing the same - Google Patents

Abstract

The invention discloses an ABS/PET alloy and a preparation method thereof. The ABS/PET alloy comprises the components with the weight percentage as follows: 21-72 percent of ABS, 14-60 percent of PET, 3-10 percent of compatilizer, 0.4-0.6 percent of antioxidant, 5-15 percent of toughener and 0.3-1 percent of lubricant. In the invention, proper compatilizer and intensifier are selected to melt an ABS system and a PET system together very well and the material which has stable size, high strength, high modulus and high fluidity is produced. The ABS/PET alloy integrates the advantages of ABS and PET and improves the heat resistance, impact resistance, processability and the like of the PET. The method for manufacturing the ABS/PET alloy comprises the technical steps as follows: firstly, the raw materials are mixed in proportion as above and then are put into a plastic extruder to be granulated at the temperature controlled within 230 DEG C to 260 DEG C; and the ABS/PET alloy is obtained.

Description

A kind of ABS/PET Alloy And Preparation Method

Technical field

The present invention relates to technical field of polymer materials, relate in particular to a kind of ABS/PET Alloy And Preparation Method.

Background technology

ABS resin is the current production rate maximum, most widely used plastics.It not only has tough, hard, firm phase isostatic mechanical property, and has dimensional stability, lower temperature resistance and processing fluidity preferably.ABS is an acrylonitrile-butadiene-styrene terpolymer, has gathered rigidity that glossiness that vinylbenzene has and plasticity, vinyl cyanide have and resistance to chemical reagents and excellent mechanical property, shock-resistance that divinyl has.

PET (polyethylene terephthalate) is a those semi-crystalline materials, and extraordinary chemical stability, physical strength, electrical insulation characteristics and thermostability are arranged, especially oil-proofness and solvent resistance excellence.PET uses separately, exists shortcomings such as impact property is not high, size instability, and these shortcomings are restricting the application of PET.And at present, still ABS and PET resin are not made the alloy application facet.

Summary of the invention

The object of the present invention is to provide a kind of ABS/PET Alloy And Preparation Method, make the material make have outstanding toughness and dimensional stability, high strength, high workability, resistance to chemical reagents.

For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions:

A kind of ABS/PET alloy, its composition is (%) by weight ratio: ABS 21-72%; PET14-60%; Compatilizer 3-10%; Oxidation inhibitor 0.4-0.6%; Toughner 5-15%; Lubricant 0.3-1%.

Wherein, also comprise toughener, its composition is (%): 5-15% by weight ratio.

Wherein, described ABS is vinyl cyanide, divinyl, styrene copolymer, and its rubber content is 35%-70%.

Wherein, described PET is a relative density 1.35～1.38,255～260 ℃ of fusing points, and melt viscosity is at the polyethylene terephthalate more than 0.9.

Wherein, described compatilizer is the one or more combination thing in ABS-g-MAH, ABS-g-GMA, AS-g-MAH, SEBS-g-MAH, glycidyl methacrylate (GMA), methyl methacrylate (MMA)-glycidyl methacrylate (GMA)-propylene ethyl ester (EA) ter-polymers (MGE).

Wherein, described toughner is the one or more combination thing in macromolecular elastomer NBR, TPU, SEBS, EPDM, high glue powder or the MBS core-shell type anti-impact modifier.

Wherein, described toughener is the one or more combination thing in organic rigid material MMA/St multipolymer, PMMA, MBS, PS, SAN or inorganic reinforcement glass fibre, carbon fiber, mica powder, kaolin, talcum powder, wollastonite, glass microballon, the whisker.

Wherein, described oxidation inhibitor is the composite of four [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester primary antioxidants and tricresyl phosphite (2,4-di-t-butyl phenyl ester) auxiliary anti-oxidant.

Wherein, described lubricant is the one or more combination thing in polysiloxane, calcium stearate, Zinic stearas, Magnesium Stearate, PE wax, PP wax, ABS wax, EVA wax, the ethylene bis stearamide.

A kind of preparation method of described ABS/PET alloy comprises step:

A: take by weighing ABS and PET resin by weight ratio, mix;

B: take by weighing compatilizer and toughner by weight ratio, mix;

C: take by weighing other auxiliary agents such as oxidation inhibitor, lubricant by weight ratio, mix, the above-mentioned material that mixes is put in the mixing tank together continued all to mix up to evenly;

D: mixed raw materials is put into the loading hopper of twin screw extruder, through melt extruding granulation; Complete processing is as follows: twin screw extruder one district temperature 230-260 ℃, two district temperature 230-260 ℃, three district temperature 230-260 ℃, four district temperature 230-260 ℃, five district temperature 230-260 ℃, six district temperature 230-260 ℃, seven district temperature 230-260 ℃, eight district temperature 230-260 ℃, head 230-260 ℃, residence time 2-3min, pressure are 12-18MPa.

Above technical scheme as can be seen, the present invention has following beneficial effect:

1: ABS/PET alloy compatilizer of the present invention and toughner, also improved the toughness of alloy simultaneously significantly in the consistency that improves ABS and PET, prepared ABS/PET alloy has the toughness of superelevation.

2: the super tough ABS/PET that the present invention makes keeps the physical and mechanical property of other every excellences of material when having superhigh tenacity.

3: the preparation technology of a kind of ABS/PET alloy that the present invention proposes is simple, cost is low.

Embodiment

ABS/PET is the mixture of acrylonitrile-butadiene-styrene terpolymer and polyethylene terephthalate, make up for each other's deficiencies and learn from each other, both improved the flowability of ABS, reduced the cost of ABS, improve the toughness of PET again, thereby had excellent comprehensive performances.ABS/PET is suitable for the office appliance shells such as computer peripheral equipment, printer and duplicating machine of automobile component, automotive trim, bumper skeleton, household appliances shell, top grade etc.

A kind of ABS/PET alloy provided by the invention, its composition is (%): ABS21-72% by weight ratio; PET 14-60%; Compatilizer 3-10%; Oxidation inhibitor O.4-0.6%; Toughner 5-15%; Lubricant 0.3-1%.

Wherein, described ABS is vinyl cyanide, divinyl, styrene copolymer, and its rubber content is 35%-70%; Described PET is a relative density 1.35～1.38,255～260 ℃ of fusing points, and melt viscosity is at the polyethylene terephthalate more than 0.9; Described compatilizer is the one or more combination thing in ABS-g-MAH, ABS-g-GMA, AS-g-MAH, SEBS-g-MAH, glycidyl methacrylate (GMA), methyl methacrylate (MMA)-glycidyl methacrylate (GMA)-propylene ethyl ester (EA) ter-polymers (MGE); Described toughner is the one or more combination thing in polymer elastomerics NBR, TPU, SEBS, EPDM, high glue powder or the MBS core-shell type anti-impact modifier; Described toughener is the one or more combination thing in organic rigid material MMA/St multipolymer, PMMA, MBS, PS, SAN or inorganic reinforcement glass fibre, carbon fiber, mica powder, kaolin, talcum powder, wollastonite, glass microballon, the whisker; Described oxidation inhibitor is the composite of four [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester primary antioxidants and tricresyl phosphite (2,4-di-t-butyl phenyl ester) auxiliary anti-oxidant; Described lubricant is the one or more combination thing in polysiloxane, calcium stearate, Zinic stearas, Magnesium Stearate, PE wax, PP wax, ABS wax, EVA wax, the ethylene bis stearamide.

In the present invention, take by weighing dry good ABS and PET resin and auxiliary agent by weight ratio; The starting material that weigh up are put into the dried 3～5min of mixing in the super mixer; At last mixed raw materials is put into the loading hopper of twin screw extruder, through melt extruding granulation.Complete processing is as follows: twin screw extruder one district temperature 230-260 ℃, two district temperature 230-260 ℃, three district temperature 230-260 ℃, four district temperature 230-260 ℃, five district temperature 230-260 ℃, six district temperature 230-260 ℃, seven district temperature 230-260 ℃, eight district temperature 230-260 ℃, head 230-260 ℃, residence time 2-3min, pressure are 12-18MPa.

For ease of the present invention is further understood, now describe the present invention in conjunction with specific embodiments:

In the composite-material formula of the following example, oxidation inhibitor is four [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, tricresyl phosphite (2,4-di-t-butyl phenyl ester) selects for use Ciba company to produce, trade names are respectively Irganox1010, and Irganox168.Compatilizer is selected GMA type compatilizer for use, produces as logical plastic cement company limited of Shenyang section, and trade names KT-22, or the production of the four-dimensional superpolymer plastic cement in Shenyang company limited, trade names are SWR-6B etc.Toughner is selected polymer elastomeric-type toughner for use, as the NBR that U.S. GOOD YEAR company produces, trade mark P83.

Embodiment 1:

The ABS weight ratio is 71.3% (below be weight ratio), PET15%, toughener 5%, 1010/1680.2/0.2%, compatilizer 3%, toughner 5%, lubricant 0.3%.The material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes matrix material.Wherein, screw rod is respectively distinguished the temperature setting and is respectively: district's temperature: 200 ℃; Two districts: 210 ℃; Three districts: 220 ℃; Four districts: 230 ℃; Five districts: 230 ℃; Six districts: 230 ℃; Seven districts: 230 ℃; Eight districts: 220 ℃; Head: 220 ℃; The residence time 2～3min.Pressure is 15MPa.

Embodiment 2:

The ABS weight ratio is 56.1% (below be weight ratio), PET20%, toughener 10%, 1010/1680.2/0.2%, compatilizer 5%, toughner 8%, lubricant 0.5%.The material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes matrix material.Wherein, screw rod is respectively distinguished the temperature setting and is respectively: district's temperature: 200 ℃; Two districts: 210 ℃; Three districts: 220 ℃; Four districts: 230 ℃; Five districts: 230 ℃; Six districts: 230 ℃; Seven districts: 230 ℃; Eight districts: 220 ℃; Head: 220 ℃; The residence time 2～3min.Pressure is 15MPa.

Embodiment 3:

The ABS weight ratio is 35.8% (below be weight ratio), PET30%, toughener 15%, 1010/1680.2/0.2%, compatilizer 8%, toughner 10%, lubricant 0.8%.The material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes matrix material.Wherein, screw rod is respectively distinguished the temperature setting and is respectively: district's temperature: 200 ℃; Two districts: 210 ℃; Three districts: 220 ℃; Four districts: 230 ℃; Five districts: 230 ℃; Six districts: 230 ℃; Seven districts: 230 ℃; Eight districts: 220 ℃; Head: 220 ℃; The residence time 2～3min.Pressure is 15MPa.

Embodiment 4:

The ABS weight ratio is 23.6% (below be weight ratio), PET40%, toughener 10%, 1010/1680.2/0.2%, compatilizer 10%, toughner 15%, lubricant 1.0%.The material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes matrix material.Wherein, screw rod is respectively distinguished the temperature setting and is respectively: district's temperature: 200 ℃; Two districts: 210 ℃; Three districts: 220 ℃; Four districts: 230 ℃; Five districts: 230 ℃; Six districts: 230 ℃; Seven districts: 230 ℃; Eight districts: 220 ℃; Head: 220 ℃; The residence time 2～3min.Pressure is 15MPa.

Embodiment 5:

The ABS weight ratio is 26.1% (below be weight ratio), PET50%, toughener 5%, 1010/1680.2/0.2%, compatilizer 5%, toughner 8%, lubricant 0.5%.The material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes matrix material.Wherein, screw rod is respectively distinguished the temperature setting and is respectively: district's temperature: 200 ℃; Two districts: 210 ℃; Three districts: 220 ℃; Four districts: 230 ℃; Five districts: 230 ℃; Six districts: 230 ℃; Seven districts: 230 ℃; Eight districts: 220 ℃; Head: 220 ℃; The residence time 2～3min.Pressure is 15MPa.

Embodiment 6:

The ABS weight ratio is 21.1% (below be weight ratio), PET60%, toughener 5%, 1010/1680.2/0.2%, compatilizer 5%, toughner 8%, lubricant 0.5%.The material that mixes is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes matrix material.Wherein, screw rod is respectively distinguished the temperature setting and is respectively: district's temperature: 200 ℃; Two districts: 210 ℃; Three districts: 220 ℃; Four districts: 230 ℃; Five districts: 230 ℃; Six districts: 230 ℃; Seven districts: 230 ℃; Eight districts: 220 ℃; Head: 220 ℃; The residence time 2～3min.Pressure is 15MPa.

Performance test:

Tensile strength is tested by the GB/T1040 standard.Specimen types is the I type, batten size (mm): 170 (length) * (20 ± 0.2) (end width) * (4 ± 0.2) (thickness), and draw speed is 50mm/min;

Flexural strength and modulus in flexure are tested by GB 9341/T standard.Specimen types is specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2), rate of bending are 20mm/min;

Notched Izod impact strength is tested by the GB/T1043 standard.Specimen types is the I type, specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2); The breach type is a category-A, and the breach residual thickness is 3.2mm.

Embodiment 1～6 prescription and material property see Table 1:

Table 1

Form	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Embodiment 5	Embodiment 6
							ABS(％)	71.3	56.1	35.8	23.6	26.1	21.1
PET(％)	15	20	30	40	50	60
							Toughener (%)	5	10	15	10	5	5
Compatilizer (%)	3	5	8	10	10	5
							Toughner (%)	5	8	10	15	8	8
1010(％)	0.2	0.2	0.2	0.2	0.2	0.2
							168(％)	0.2	0.2	0.2	0.2	0.2	0.2
Lubricant (%)	0.3	0.5	0.8	1.0	0.5	0.5
							Notched Izod impact strength (KJ/m 2)	83.2	81.1	78.5	81.3	82.4	78.1
Tensile strength (MPa)	70.2	73.1	77.7	75.3	78.2	80.7
							Elongation at break (%)	90	83	85	107	85	67
Flexural strength (MPa)	88.5	95	108.2	100.7	113.4	115.3
							Modulus in flexure (MPa)	2670	2700	2882	3012	3115	3018

More than a kind of ABS/PET Alloy And Preparation Method provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (10)

1, a kind of ABS/PET alloy is characterized in that, its composition is (%) by weight ratio:

Acrylonitrile-butadiene-styrene copolymer ABS 21-72%;

Polyethylene terephtalate 14-60%;

Compatilizer 3-10%;

Toughner 5-15%;

Oxidation inhibitor 0.4-0.6%;

Lubricant 0.3-1%.

2, ABS/PET alloy as claimed in claim 1 is characterized in that: also comprise toughener, its

Forming is (%): 5-15% by weight ratio.

3, ABS/PET alloy as claimed in claim 1 is characterized in that: described ABS is vinyl cyanide, divinyl, styrene copolymer, and its rubber content is 35%-70%.

4, ABS/PET alloy as claimed in claim 1 is characterized in that: described PET is a relative density 1.35～1.38,255～260 ℃ of fusing points, and melt viscosity is at the polyethylene terephthalate more than 0.9.

5, ABS/PET alloy as claimed in claim 1 is characterized in that: described compatilizer is the one or more combination thing in ABS-g-MAH, ABS-g-GMA, AS-g-MAH, SEBS-g-MAH, glycidyl methacrylate (GMA), methyl methacrylate (MMA)-glycidyl methacrylate (GMA)-propylene ethyl ester (EA) ter-polymers (MGE).

6, ABS/PET alloy as claimed in claim 1 is characterized in that: described toughner is the one or more combination thing in polymer elastomerics NBR, TPU, SEBS, EPDM, high glue powder or the MBS core-shell type anti-impact modifier.

7, ABS/PET alloy as claimed in claim 1 is characterized in that: described toughener is the one or more combination thing in organic rigid material MMA/St multipolymer, PMMA, MBS, PS, SAN or inorganic reinforcement glass fibre, carbon fiber, mica powder, kaolin, talcum powder, wollastonite, glass microballon, the whisker.

8, ABS/PET alloy as claimed in claim 1 is characterized in that: described oxidation inhibitor is the composite of four [3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester primary antioxidants and tricresyl phosphite (2,4-di-t-butyl phenyl ester) auxiliary anti-oxidant.

9, ABS/PET alloy as claimed in claim 1 is characterized in that: described lubricant is the one or more combination thing in polysiloxane, calcium stearate, Zinic stearas, Magnesium Stearate, PE wax, PP wax, ABS wax, EVA wax, the ethylene bis stearamide.

10, a kind of preparation method of the alloy of ABS/PET according to claim 1 is characterized in that, comprises step:

A: take by weighing ABS and PET resin by weight ratio, mix;

B: take by weighing compatilizer and toughner by weight ratio, mix;

C: take by weighing other auxiliary agents such as oxidation inhibitor, lubricant by weight ratio, mix, the above-mentioned material that mixes is put in the mixing tank together continued all to mix up to evenly;

D: mixed raw materials is put into the loading hopper of twin screw extruder, through melt extruding granulation; Complete processing is as follows: twin screw extruder one district temperature 230-260 ℃, two district temperature 230-260 ℃, three district temperature 230-260 ℃, four district temperature 230-260 ℃, five district temperature 230-260 ℃, six district temperature 230-260 ℃, seven district temperature 230-260 ℃, eight district temperature 230-260 ℃, head 230-260 ℃, residence time 2-3min, pressure are 12-18MPa.