CN117801498A - High-strength modified polyphenyl ether material for vehicles and preparation method thereof - Google Patents
High-strength modified polyphenyl ether material for vehicles and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 69
- 229920013638 modified polyphenyl ether Polymers 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 45
- 239000003365 glass fiber Substances 0.000 claims abstract description 18
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 13
- 239000012975 dibutyltin dilaurate Substances 0.000 claims abstract description 13
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 13
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 13
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000004014 plasticizer Substances 0.000 claims abstract description 11
- 229910000278 bentonite Inorganic materials 0.000 claims description 48
- 239000000440 bentonite Substances 0.000 claims description 48
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 48
- 238000002156 mixing Methods 0.000 claims description 42
- -1 N-phenylmaleimide acetone Chemical compound 0.000 claims description 36
- 238000001035 drying Methods 0.000 claims description 31
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 24
- 229920013636 polyphenyl ether polymer Polymers 0.000 claims description 23
- 239000003999 initiator Substances 0.000 claims description 18
- HIDBROSJWZYGSZ-UHFFFAOYSA-N 1-phenylpyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC=C1 HIDBROSJWZYGSZ-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical group CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 12
- 230000003179 granulation Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000004048 modification Effects 0.000 claims description 10
- 238000012986 modification Methods 0.000 claims description 10
- 229920001955 polyphenylene ether Polymers 0.000 claims description 9
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 6
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical group CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 6
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000002390 rotary evaporation Methods 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims 1
- 229920006380 polyphenylene oxide Polymers 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 47
- 230000000052 comparative effect Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of new materials, and discloses a high-strength modified polyphenyl ether material for a vehicle and a preparation method thereof, wherein the high-strength modified polyphenyl ether material comprises the following components: graft composite modified polyphenyl ether, ABS resin, ethylene-vinyl acetate copolymer, glass fiber, ethylene bis stearamide, filler, dibutyl tin dilaurate, plasticizer and antioxidant; according to the invention, by introducing glass fibers into the high-strength modified polyphenyl ether material for the vehicle, when the material is impacted, the generated stress is concentrated, the stress is dispersed through matrix deformation and glass fiber transmission, impact force is uniformly dispersed, and the toughness improved by the modified polyphenyl ether material can bear larger deformation, so that a shearing band is formed by stress concentration, energy is absorbed and consumed, and impact energy is absorbed and consumed, so that the notch impact strength of the high-strength modified polyphenyl ether material is greatly improved.
Description
Technical Field
The invention relates to the technical field of new materials, in particular to a high-strength modified polyphenyl ether material for a vehicle and a preparation method thereof.
Background
With the continuous development of the automobile industry, the requirements of automobile-related materials are also higher and higher, and the automobile-related materials not only comprise metal, but also comprise plastics, rubber and the like, especially with the development of new energy automobiles, in order to improve the weight reduction of the automobiles and save the power consumption, the automobile-related materials are continuously popularized and used.
Polyphenylene Ether (PPE) is an emerging high strength engineering plastic which has been well developed in recent decades, is inexpensive, has good high temperature resistance, flame retardant property and impact resistance, is nontoxic and harmless, and has been widely used in the fields of electronics and electricity, mechanical industry and chemical industry.
However, the simple polyphenyl ether material is directly applied to the plastic for the automobile, and the strength performance of the polyphenyl ether material cannot meet the requirements of some parts, so that the large-scale use of the polyphenyl ether material is limited.
Based on the above, we propose a high-strength modified polyphenyl ether material for vehicles, which is hoped to solve the defects in the prior art.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a high-strength modified polyphenyl ether material for a vehicle and a preparation method thereof.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions:
the high-strength modified polyphenyl ether material for the vehicle is prepared from the following components in parts by weight: 40-45 parts of grafted composite modified polyphenyl ether, 40-45 parts of polyphenyl ether, 8-12 parts of ABS resin, 3-5 parts of ethylene-vinyl acetate copolymer, 3-6 parts of glass fiber, 1-3 parts of ethylene bis stearamide, 20-25 parts of filler, 0.5-1 part of dibutyl tin dilaurate, 3-5 parts of plasticizer and 1-2 parts of antioxidant.
As a further technical scheme, the preparation method of the grafted composite modified polyphenyl ether comprises the following steps:
(1) Firstly, adding N-phenylmaleimide into acetone, and uniformly stirring and mixing to obtain an N-phenylmaleimide acetone solution;
(2) Adding an initiator into the N-phenylmaleimide acetone solution, and uniformly stirring and mixing to obtain a composite solution;
(3) Adding polypropylene resin into the composite solution, adjusting the temperature to 85 ℃, preserving heat and stirring for 4 hours, then carrying out rotary evaporation and drying, adopting ethanol solution to wash for 10 minutes, then filtering, and drying to constant weight to obtain a grafting modified material;
(4) Uniformly dispersing nano bentonite into deionized water to obtain nano bentonite dispersion liquid, adding maleic anhydride into the nano bentonite dispersion liquid, stirring for 40min at a rotating speed of 500r/min, and then carrying out suction filtration and drying to obtain pretreated nano bentonite;
(5) And sequentially adding the grafting modification material, the pretreated bentonite and the polyphenyl ether into a double-screw extruder for melt extrusion granulation to obtain the grafting composite modified polyphenyl ether.
As a further technical scheme, the mass fraction of the N-phenylmaleimide in the N-phenylmaleimide acetone solution in the step (1) is 5-6%.
As a further technical scheme: the mixing ratio of the N-phenylmaleimide acetone solution and the initiator in the step (2) is 100:1-1.6;
the initiator is dicumyl peroxide.
As a further technical scheme: the mixing ratio of the composite solution to the polypropylene resin in the step (3) is 100:21;
the mass fraction of the ethanol solution is 35%.
As a further technical scheme, in the step (4), the mixing ratio of the nano bentonite and the deionized water is 25g:120mL;
the mass ratio of the nanometer bentonite to the maleic anhydride is 10:3.
As a further technical scheme, the mixing mass ratio of the grafting modification material, the pretreated bentonite and the polyphenyl ether in the step (5) is 5-7:10-12:60.
as a further technical scheme: the filler is calcium carbonate.
As a further technical scheme, the plasticizer is dibutyl phthalate;
the antioxidant is 2, 6-di-tert-butyl-p-cresol.
A preparation method of a high-strength modified polyphenyl ether material for a vehicle comprises the following steps:
a: weighing grafted composite modified polyphenyl ether, ABS resin, ethylene-vinyl acetate copolymer, glass fiber, ethylene bis stearamide, filler, dibutyl tin dilaurate, plasticizer and antioxidant according to the weight parts;
b: sequentially adding the raw materials of the components into a stirrer, mixing for 30min at a rotating speed of 1000r/min, then placing into a drying oven, and drying at 60 ℃ for 1 hour;
c: and adding the dried mixed raw materials into a double-screw extruder for melt extrusion and granulation, wherein the temperature of the double-screw extruder is set to 220 ℃ and the screw rotating speed is 150r/min.
(III) beneficial effects
Compared with the prior art, the invention provides a high-strength modified polyphenyl ether material for a vehicle, which has the following beneficial effects:
the high-strength modified polyphenyl ether material for the vehicle, which is prepared by the invention, has higher strength performance, can be effectively applied to the field of automobile engineering materials, greatly widens the application range and improves the economic benefit.
According to the invention, by introducing glass fibers into the high-strength modified polyphenyl ether material for the vehicle, when the material is impacted, the generated stress is concentrated, the stress is dispersed through matrix deformation and glass fiber transmission, impact force is uniformly dispersed, and the toughness improved by the modified polyphenyl ether material can bear larger deformation, so that a shearing band is formed by stress concentration, energy is absorbed and consumed, and impact energy is absorbed and consumed, so that the notch impact strength of the high-strength modified polyphenyl ether material is greatly improved. However, when the common untreated polyphenyl ether material is directly introduced into glass fibers, larger stress defects can be easily caused by fiber aggregation, but the performance of the material can be reduced.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The high-strength modified polyphenyl ether material for the vehicle is prepared from the following components in parts by weight: 40 parts of grafted composite modified polyphenyl ether, 40 parts of polyphenyl ether, 8 parts of ABS resin, 3 parts of ethylene-vinyl acetate copolymer, 3 parts of glass fiber, 1 part of ethylene bis stearamide, 20 parts of calcium carbonate, 0.5 part of dibutyl tin dilaurate, 3 parts of dibutyl phthalate and 1 part of 2, 6-di-tert-butyl-p-cresol.
The preparation method of the grafted composite modified polyphenyl ether comprises the following steps:
(1) Firstly, adding N-phenylmaleimide into acetone, and uniformly stirring and mixing to obtain an N-phenylmaleimide acetone solution; the mass fraction of the N-phenylmaleimide in the N-phenylmaleimide acetone solution is 5%.
(2) Adding an initiator into the N-phenylmaleimide acetone solution, and uniformly stirring and mixing to obtain a composite solution; the mixing ratio of the N-phenylmaleimide acetone solution and the initiator is 100:1;
the initiator is dicumyl peroxide.
(3) Adding polypropylene resin into the composite solution, adjusting the temperature to 85 ℃, preserving heat and stirring for 4 hours, then carrying out rotary evaporation and drying, adopting ethanol solution to wash for 10 minutes, then filtering, and drying to constant weight to obtain a grafting modified material; the mixing ratio of the composite solution to the polypropylene resin is 100:21;
the mass fraction of the ethanol solution is 35%.
(4) Uniformly dispersing nano bentonite into deionized water to obtain nano bentonite dispersion liquid, adding maleic anhydride into the nano bentonite dispersion liquid, stirring for 40min at a rotating speed of 500r/min, and then carrying out suction filtration and drying to obtain pretreated nano bentonite; the mixing proportion of the nanometer bentonite and the deionized water is 25g:120mL;
the mass ratio of the nanometer bentonite to the maleic anhydride is 10:3.
(5) Sequentially adding the grafting modification material, the pretreated bentonite and the polyphenyl ether into a double-screw extruder for melt extrusion granulation to obtain grafting composite modified polyphenyl ether; the mixing mass ratio of the grafting modified material to the pretreated bentonite to the polyphenyl ether is 5:10:60.
a preparation method of a high-strength modified polyphenyl ether material for a vehicle comprises the following steps:
a: weighing grafted composite modified polyphenyl ether, ABS resin, ethylene-vinyl acetate copolymer, glass fiber, ethylene bis stearamide, filler, dibutyl tin dilaurate, plasticizer and antioxidant according to the weight parts;
b: sequentially adding the raw materials of the components into a stirrer, mixing for 30min at a rotating speed of 1000r/min, then placing into a drying oven, and drying at 60 ℃ for 1 hour;
c: and adding the dried mixed raw materials into a double-screw extruder for melt extrusion and granulation, wherein the temperature of the double-screw extruder is set to 220 ℃ and the screw rotating speed is 150r/min.
Example 2
The high-strength modified polyphenyl ether material for the vehicle is prepared from the following components in parts by weight: 42 parts of grafted composite modified polyphenyl ether, 42 parts of polyphenyl ether, 9 parts of ABS resin, 3.5 parts of ethylene-vinyl acetate copolymer, 4 parts of glass fiber, 2 parts of ethylene bis stearamide, 22 parts of calcium carbonate, 0.8 part of dibutyl tin dilaurate, 3.5 parts of dibutyl phthalate and 1.5 parts of 2, 6-di-tert-butyl-p-cresol.
The preparation method of the grafted composite modified polyphenyl ether comprises the following steps:
(1) Firstly, adding N-phenylmaleimide into acetone, and uniformly stirring and mixing to obtain an N-phenylmaleimide acetone solution; the mass fraction of the N-phenylmaleimide in the N-phenylmaleimide acetone solution is 5%.
(2) Adding an initiator into the N-phenylmaleimide acetone solution, and uniformly stirring and mixing to obtain a composite solution; the mixing ratio of the N-phenylmaleimide acetone solution and the initiator is 100:1;
the initiator is dicumyl peroxide.
(3) Adding polypropylene resin into the composite solution, adjusting the temperature to 85 ℃, preserving heat and stirring for 4 hours, then carrying out rotary evaporation and drying, adopting ethanol solution to wash for 10 minutes, then filtering, and drying to constant weight to obtain a grafting modified material; the mixing ratio of the composite solution to the polypropylene resin is 100:21;
the mass fraction of the ethanol solution is 35%.
(4) Uniformly dispersing nano bentonite into deionized water to obtain nano bentonite dispersion liquid, adding maleic anhydride into the nano bentonite dispersion liquid, stirring for 40min at a rotating speed of 500r/min, and then carrying out suction filtration and drying to obtain pretreated nano bentonite; the mixing proportion of the nanometer bentonite and the deionized water is 25g:120mL;
the mass ratio of the nanometer bentonite to the maleic anhydride is 10:3.
(5) Sequentially adding the grafting modification material, the pretreated bentonite and the polyphenyl ether into a double-screw extruder for melt extrusion granulation to obtain grafting composite modified polyphenyl ether; the mixing mass ratio of the grafting modified material to the pretreated bentonite to the polyphenyl ether is 6:11:60.
a preparation method of a high-strength modified polyphenyl ether material for a vehicle comprises the following steps:
a: weighing grafted composite modified polyphenyl ether, ABS resin, ethylene-vinyl acetate copolymer, glass fiber, ethylene bis stearamide, filler, dibutyl tin dilaurate, plasticizer and antioxidant according to the weight parts;
b: sequentially adding the raw materials of the components into a stirrer, mixing for 30min at a rotating speed of 1000r/min, then placing into a drying oven, and drying at 60 ℃ for 1 hour;
c: and adding the dried mixed raw materials into a double-screw extruder for melt extrusion and granulation, wherein the temperature of the double-screw extruder is set to 220 ℃ and the screw rotating speed is 150r/min.
Example 3
The high-strength modified polyphenyl ether material for the vehicle is prepared from the following components in parts by weight: 44 parts of grafted composite modified polyphenyl ether, 44 parts of polyphenyl ether, 12 parts of ABS resin, 4 parts of ethylene-vinyl acetate copolymer, 5 parts of glass fiber, 2 parts of ethylene bis stearamide, 23 parts of calcium carbonate, 0.8 part of dibutyl tin dilaurate, 4 parts of dibutyl phthalate and 1 part of 2, 6-di-tert-butyl-p-cresol.
The preparation method of the grafted composite modified polyphenyl ether comprises the following steps:
(1) Firstly, adding N-phenylmaleimide into acetone, and uniformly stirring and mixing to obtain an N-phenylmaleimide acetone solution; the mass fraction of N-phenylmaleimide in the N-phenylmaleimide acetone solution is 6%.
(2) Adding an initiator into the N-phenylmaleimide acetone solution, and uniformly stirring and mixing to obtain a composite solution; the mixing ratio of the N-phenylmaleimide acetone solution and the initiator is 100:1.5;
the initiator is dicumyl peroxide.
(3) Adding polypropylene resin into the composite solution, adjusting the temperature to 85 ℃, preserving heat and stirring for 4 hours, then carrying out rotary evaporation and drying, adopting ethanol solution to wash for 10 minutes, then filtering, and drying to constant weight to obtain a grafting modified material; the mixing ratio of the composite solution to the polypropylene resin is 100:21;
the mass fraction of the ethanol solution is 35%.
(4) Uniformly dispersing nano bentonite into deionized water to obtain nano bentonite dispersion liquid, adding maleic anhydride into the nano bentonite dispersion liquid, stirring for 40min at a rotating speed of 500r/min, and then carrying out suction filtration and drying to obtain pretreated nano bentonite; the mixing proportion of the nanometer bentonite and the deionized water is 25g:120mL;
the mass ratio of the nanometer bentonite to the maleic anhydride is 10:3.
(5) Sequentially adding the grafting modification material, the pretreated bentonite and the polyphenyl ether into a double-screw extruder for melt extrusion granulation to obtain grafting composite modified polyphenyl ether; the mixing mass ratio of the grafting modified material to the pretreated bentonite to the polyphenyl ether is 6:10:60.
a preparation method of a high-strength modified polyphenyl ether material for a vehicle comprises the following steps:
a: weighing grafted composite modified polyphenyl ether, ABS resin, ethylene-vinyl acetate copolymer, glass fiber, ethylene bis stearamide, filler, dibutyl tin dilaurate, plasticizer and antioxidant according to the weight parts;
b: sequentially adding the raw materials of the components into a stirrer, mixing for 30min at a rotating speed of 1000r/min, then placing into a drying oven, and drying at 60 ℃ for 1 hour;
c: and adding the dried mixed raw materials into a double-screw extruder for melt extrusion and granulation, wherein the temperature of the double-screw extruder is set to 220 ℃ and the screw rotating speed is 150r/min.
Example 4
The high-strength modified polyphenyl ether material for the vehicle is prepared from the following components in parts by weight: 45 parts of grafted composite modified polyphenyl ether, 45 parts of polyphenyl ether, 12 parts of ABS resin, 5 parts of ethylene-vinyl acetate copolymer, 6 parts of glass fiber, 3 parts of ethylene bis stearamide, 25 parts of calcium carbonate, 1 part of dibutyl tin dilaurate, 5 parts of dibutyl phthalate and 2 parts of 2, 6-di-tert-butyl-p-cresol.
The preparation method of the grafted composite modified polyphenyl ether comprises the following steps:
(1) Firstly, adding N-phenylmaleimide into acetone, and uniformly stirring and mixing to obtain an N-phenylmaleimide acetone solution; the mass fraction of N-phenylmaleimide in the N-phenylmaleimide acetone solution is 6%.
(2) Adding an initiator into the N-phenylmaleimide acetone solution, and uniformly stirring and mixing to obtain a composite solution; the mixing ratio of the N-phenylmaleimide acetone solution and the initiator is 100:1.6;
the initiator is dicumyl peroxide.
(3) Adding polypropylene resin into the composite solution, adjusting the temperature to 85 ℃, preserving heat and stirring for 4 hours, then carrying out rotary evaporation and drying, adopting ethanol solution to wash for 10 minutes, then filtering, and drying to constant weight to obtain a grafting modified material; the mixing ratio of the composite solution to the polypropylene resin is 100:21;
the mass fraction of the ethanol solution is 35%.
(4) Uniformly dispersing nano bentonite into deionized water to obtain nano bentonite dispersion liquid, adding maleic anhydride into the nano bentonite dispersion liquid, stirring for 40min at a rotating speed of 500r/min, and then carrying out suction filtration and drying to obtain pretreated nano bentonite; the mixing proportion of the nanometer bentonite and the deionized water is 25g:120mL;
the mass ratio of the nanometer bentonite to the maleic anhydride is 10:3.
(5) Sequentially adding the grafting modification material, the pretreated bentonite and the polyphenyl ether into a double-screw extruder for melt extrusion granulation to obtain grafting composite modified polyphenyl ether; the mixing mass ratio of the grafting modified material to the pretreated bentonite to the polyphenyl ether is 7:12:60.
a preparation method of a high-strength modified polyphenyl ether material for a vehicle comprises the following steps:
a: weighing grafted composite modified polyphenyl ether, ABS resin, ethylene-vinyl acetate copolymer, glass fiber, ethylene bis stearamide, filler, dibutyl tin dilaurate, plasticizer and antioxidant according to the weight parts;
b: sequentially adding the raw materials of the components into a stirrer, mixing for 30min at a rotating speed of 1000r/min, then placing into a drying oven, and drying at 60 ℃ for 1 hour;
c: and adding the dried mixed raw materials into a double-screw extruder for melt extrusion and granulation, wherein the temperature of the double-screw extruder is set to 220 ℃ and the screw rotating speed is 150r/min.
Comparative example 1:
the differences from example 1 are: the grafting composite modified polyphenyl ether is replaced by polyphenyl ether, and the rest technical schemes are unchanged.
Comparative example 2:
the differences from example 1 are: the grafting modification material is not added in the preparation process of the grafting composite modified polyphenyl ether, and the rest technical schemes are unchanged.
Test
Drying the master batches of the examples and the comparative examples in an oven at 120 ℃, adding the master batches into an injection machine for injection molding to obtain standard sample bars, wherein the injection temperature is 200 ℃, the injection pressure is 115MPa, the injection rate is set to be 95g/s, and cooling the sample bars of the examples and the comparative examples at room temperature after injection molding is completed;
tensile property test: the test was carried out according to GB/T1040.3-2006, the stretching rate being 50mm/min.
TABLE 1
| Tensile strength MPa | |
| Example 1 | 78.3 |
| Example 2 | 78.8 |
| Example 3 | 77.6 |
| Example 4 | 77.9 |
| Comparative example 1 | 61.4 |
| Comparative example 2 | 69.8 |
As can be seen from Table 1, the high-strength modified polyphenyl ether material for vehicles, prepared by the invention, has higher tensile strength performance.
Impact performance test: testing according to GB/T1843-2008;
TABLE 2
| Impact Strength/KJ/m 2 | |
| Example 1 | 13.86 |
| Example 2 | 13.73 |
| Example 3 | 13.75 |
| Example 4 | 13.81 |
| Comparative example 1 | 10.07 |
| Comparative example 2 | 11.98 |
As can be seen from Table 2, the high-strength modified polyphenyl ether material for vehicles, prepared by the invention, has higher impact strength.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The high-strength modified polyphenyl ether material for the vehicle is characterized by comprising the following components in parts by weight: 40-45 parts of grafted composite modified polyphenyl ether, 40-45 parts of polyphenyl ether, 8-12 parts of ABS resin, 3-5 parts of ethylene-vinyl acetate copolymer, 3-6 parts of glass fiber, 1-3 parts of ethylene bis stearamide, 20-25 parts of filler, 0.5-1 part of dibutyl tin dilaurate, 3-5 parts of plasticizer and 1-2 parts of antioxidant.
2. The high-strength modified polyphenylene ether material for vehicles according to claim 1, wherein the preparation method of the graft composite modified polyphenylene ether comprises the following steps:
(1) Firstly, adding N-phenylmaleimide into acetone, and uniformly stirring and mixing to obtain an N-phenylmaleimide acetone solution;
(2) Adding an initiator into the N-phenylmaleimide acetone solution, and uniformly stirring and mixing to obtain a composite solution;
(3) Adding polypropylene resin into the composite solution, adjusting the temperature to 85 ℃, preserving heat and stirring for 4 hours, then carrying out rotary evaporation and drying, adopting ethanol solution to wash for 10 minutes, then filtering, and drying to constant weight to obtain a grafting modified material;
(4) Uniformly dispersing nano bentonite into deionized water to obtain nano bentonite dispersion liquid, adding maleic anhydride into the nano bentonite dispersion liquid, stirring for 40min at a rotating speed of 500r/min, and then carrying out suction filtration and drying to obtain pretreated nano bentonite;
(5) And sequentially adding the grafting modification material, the pretreated bentonite and the polyphenyl ether into a double-screw extruder for melt extrusion granulation to obtain the grafting composite modified polyphenyl ether.
3. The high-strength modified polyphenylene ether material for vehicles according to claim 2, wherein the mass fraction of N-phenylmaleimide in the N-phenylmaleimide acetone solution in the step (1) is 5 to 6%.
4. The high-strength modified polyphenylene ether material for vehicles according to claim 2, wherein: the mixing ratio of the N-phenylmaleimide acetone solution and the initiator in the step (2) is 100:1-1.6;
the initiator is dicumyl peroxide.
5. The high-strength modified polyphenylene ether material for vehicles according to claim 2, wherein: the mixing ratio of the composite solution to the polypropylene resin in the step (3) is 100:21;
the mass fraction of the ethanol solution is 35%.
6. The high-strength modified polyphenylene oxide material for vehicles according to claim 2, wherein the mixing ratio of the nano bentonite and deionized water in the step (4) is 25g:120mL;
the mass ratio of the nanometer bentonite to the maleic anhydride is 10:3.
7. The high-strength modified polyphenyl ether material for a vehicle according to claim 2, wherein the mixing mass ratio of the grafting modification material to the pretreated bentonite to the polyphenyl ether in the step (5) is 5-7:10-12:60.
8. the high-strength modified polyphenylene ether material for vehicles according to claim 1, wherein: the filler is calcium carbonate.
9. The high-strength modified polyphenylene ether material for vehicles according to claim 1, wherein: the plasticizer is dibutyl phthalate;
the antioxidant is 2, 6-di-tert-butyl-p-cresol.
10. The method for preparing the high-strength modified polyphenyl ether material for a vehicle, as set forth in claim 1, wherein the method comprises the following steps: the method comprises the following steps:
a: weighing grafted composite modified polyphenyl ether, ABS resin, ethylene-vinyl acetate copolymer, glass fiber, ethylene bis stearamide, filler, dibutyl tin dilaurate, plasticizer and antioxidant according to the weight parts;
b: sequentially adding the raw materials of the components into a stirrer, mixing for 30min at a rotating speed of 1000r/min, then placing into a drying oven, and drying at 60 ℃ for 1 hour;
c: and adding the dried mixed raw materials into a double-screw extruder for melt extrusion and granulation, wherein the temperature of the double-screw extruder is set to 220 ℃ and the screw rotating speed is 150r/min.
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