CN109535562A - A kind of scratch-resistant high-strength vehicle interior trim PP material and preparation method thereof - Google Patents
A kind of scratch-resistant high-strength vehicle interior trim PP material and preparation method thereof Download PDFInfo
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- CN109535562A CN109535562A CN201811469990.8A CN201811469990A CN109535562A CN 109535562 A CN109535562 A CN 109535562A CN 201811469990 A CN201811469990 A CN 201811469990A CN 109535562 A CN109535562 A CN 109535562A
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- 239000000463 material Substances 0.000 title claims abstract description 35
- 230000003678 scratch resistant effect Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 57
- 230000002708 enhancing effect Effects 0.000 claims abstract description 36
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 16
- 239000002667 nucleating agent Substances 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 239000012745 toughening agent Substances 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000007822 coupling agent Substances 0.000 claims abstract description 12
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 5
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 101000631616 Homo sapiens Translocation protein SEC62 Proteins 0.000 claims description 3
- 101100408975 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PSY4 gene Proteins 0.000 claims description 3
- 101100451725 Saprolegnia parasitica (strain CBS 223.65) HTP3 gene Proteins 0.000 claims description 3
- 102100029007 Translocation protein SEC62 Human genes 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000007790 scraping Methods 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 13
- 235000006708 antioxidants Nutrition 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 238000005411 Van der Waals force Methods 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- -1 polysiloxanes Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to automotive interior material technical field, in particular to a kind of scratch-resistant high-strength vehicle interior trim PP material and preparation method thereof.The material is prepared by following raw materials in part by weight: 50~80 parts of PP resin, 5~20 parts of toughener, enhancing 1~30 part of powder, 0.02~0.6 part of coupling agent, 0.2~0.6 part of nucleating agent, 0.5~4 part of SOLID ORGANIC silicon, 0.2~1 part of lubricant, 0.2~0.5 part of antioxidant.The pp strength of materials that the present invention obtains is high, scraping and wiping resistance performance is excellent.
Description
Technical field
The invention belongs to automotive interior material technical field, in particular to a kind of scratch-resistant high-strength vehicle interior trim PP material
And preparation method thereof.
Background technique
Energy-saving and emission-reduction are as Times ' Demand, to mould Dai Mu, to mould the main trend that Dai Gang has become China Automobile Industry.It will change
Property PP be applied to automotive upholstery and at home and abroad generally emerged from a variety of models, it is more that current problem essentially consists in gadget
It for dermatoglyph part, is easy to scratch, and material is partially soft, to the sense of touch of the shaky low side of people.
Summary of the invention
The object of the present invention is to provide a kind of scratch-resistant high-strength vehicle interior trim PP materials and preparation method thereof.
The technical solution adopted by the invention is as follows:
A kind of scratch-resistant high-strength vehicle interior trim PP material, is prepared by following raw materials in part by weight:
50~80 parts of PP resin, 5~20 parts of toughener, 1~30 part of powder of enhancing, 0.02~0.6 part of coupling agent, nucleating agent
0.2~0.6 part, 0.5~4 part of SOLID ORGANIC silicon, 0.2~1 part of lubricant, 0.2~0.5 part of antioxidant.
Preferably, the parts by weight of raw materials is as follows:
68 parts of PP resin, 8 parts of toughener, 20 parts of powder of enhancing, 0.4 part of coupling agent, 0.3 part of nucleating agent, SOLID ORGANIC silicon
2.5 parts, 0.6 part of lubricant, 0.4 part of antioxidant.
The mixture of homopolymerization, copolymerization, homopolymerization and copolymerization may be selected in the PP resin.
The enhancing powder is Italy's IMIFABI talcum powder.
Further, one of following models or the mixing of more than one arbitrary proportions may be selected in the enhancing powder
Object: HTP1, HTP1L, HTP2, HTP2L, HTP3, HM4, HTP05, HTP05L, HTPULTRA5 and HTPULTRA5L.
The nucleating agent preferably Ai Di section, Japan NA-11.
The preferred Dow corning 4000-50A of the SOLID ORGANIC silicon and/or win wound Degussa Antiscratch100,
The two ratio is without stringent limitation.
The toughener is one of EPDM, POE, EMA or the mixture of more than one arbitrary proportions；The idol
Connection agent is KH550 or KH560；The lubricant is PE wax or EBS or PETS；The antioxidant is antioxidant 1076
With the mixture of the quality such as antioxidant 168.
The present invention still further provides a kind of preparation method of scratch-resistant high-strength vehicle interior trim PP material, according to
Parts by weight mix above-mentioned raw materials, squeeze out under 190~230 DEG C of temperature-controlled conditions, 250~650rpm screw speed later.
Preferably, first enhancing powder is uniformly mixed with silane coupling agent, Screw Extrusion is added with other raw materials again later
Machine carries out extrusion forming.
More preferably, it during enhancing powder is sufficiently stirred, is sprayed on enhancing powder silane coupled
Agent 5-10min, the quality of the silane coupling agent of spray are enhance powder quality 2%, continue 20~30min of stirring later, this
Process carries out under conditions of 60~80 DEG C.
Further, before extrusion forming, will enhance other raw materials except powder and silane coupling agent after mixing from
The main spout of double screw extruder is added, and will enhance the mixture of powder and silane coupling agent from the side feed of double screw extruder
Material mouth is added in extruder barrel, later extrusion forming.
In order to achieve the object of the present invention, a kind of scratch-resistant high-strength vehicle interior trim PP material is obtained, the present invention is from raw material
Formula all adjusted to method.Wherein, it joined enhancing powder in the feed, and selected that there is high silicon content, piece
The Italian IMIFABI talcum powder of shape structure, high draw ratio and ultra-fine mesh number, can not only increase substantially the curved of resin
Bent modulus and intensity can also promote resin surface hardness, promote its scraping and wiping resistance performance.And the selection of nucleating agent of the present invention can rise
To the effect for the thermal denaturation temperature, crystallization rate, Rockwell hardness for significantly improving polymer, to significantly promote the anti-scratch of resin
Flower performance.The modified grafting end of SOLID ORGANIC silicon can be effectively compatible with PP resin, and polysiloxanes flexible ends float on product surface, energy
The smooth degree in surface for efficiently increasing PP resin, reduces skin-friction coefficient, enhances scraping and wiping resistance performance.The present invention is comprehensive from multiple angles
It closes and considers and adjust the proportion between raw material, to play the role of mutually cooperateing with, cost of material and properties of product are all obtained
It optimizes.
In preparation method, further improvement is had also been made in the present invention.First by the enhancing powder and silane idol in formula
Connection agent is first sufficiently mixed, and enhancing powder is not easy to disperse, and inorganic because Van der Waals force is easy to reunite during with PP blending extrusion
Powder and organic polymer resin PP compatibility are poor, it is more difficult to obtain high-intensitive reinforced resin.Talcum powder after silane treatment
Surface forms macromolecule membrane, eliminates Van der Waals force between powder, and the phase of the high-molecular compound of powder surface and PP resin
Capacitive is further promoted, and improves the intensity and surface hardness of PP resin.Specifically, enhancing powder can be poured into configured with high pressure
It, will be on the silane coupling agent spray to enhancing powder in high-pressure sprayer while stirring powder in the blender of sprayer.
Secondly, in extrusion molding, by PP resin, toughener, coupling agent, nucleating agent, SOLID ORGANIC silicon, lubricant, antioxidant etc.
Enter in extruder barrel from the main spout of double screw extruder after mixing evenly, the enhancing being surface-treated through silane coupling agent
Powder enters in extruder barrel from twin-screw side spout, and cooling trough is cooling after extrusion, and finished product is made in pelleter granulation.Enhancing
When powder enters from side spout, the viscosity of fusant sharp fall, avoids powder in main spout in extruder barrel
This section being sheared and being destroyed between side spout, largely protects the laminated structure of enhancing powder talcum powder
With longer draw ratio, the reinforcing effect of talcum powder is maintained.
Automotive interior product can be made by Shooting Technique in the pp material that the present invention obtains, and be widely used in instrument board, vehicle
Door-plate, matter storage lattice, console, seat trim etc..
Compared with the prior art, the invention has the following advantages:
The present invention provides a kind of pp materials and preparation method thereof, enhance powder by introducing high-rigidity high-ductility, and be aided with and mention
It rises PP surface hardness and reduces the auxiliary agent of skin-friction coefficient, using the processing technology for avoiding powder structure from being destroyed, acquisition
The pp strength of materials is high, scraping and wiping resistance performance is excellent.
Specific embodiment
Below the technical scheme of the invention is illustrated by a specific example, but the scope of the present invention is not limited thereto:
Double screw extruder used is Nanjing Jieya Extruding Equipment Co., Ltd.'s production, model SHJ- in following embodiment
63。
Embodiment 1
A kind of scratch-resistant high-strength vehicle interior trim PP material, is prepared by following raw materials in part by weight:
68 parts of PP resin, 8 parts of toughener, 20 parts of powder of enhancing, 0.4 part of coupling agent, 0.3 part of nucleating agent, SOLID ORGANIC silicon
2.5 parts, 0.6 part of lubricant, 0.4 part of antioxidant.
The PP Choice of Resin South Korea Hyosung PP HJ8280.
The enhancing powder is Italy IMIFABI talcum powder HTP05L.
The nucleating agent selects Ai Di section, Japan NA-11, and SOLID ORGANIC silicon is Dow corning 4000-50A, described
Toughener is Jilin Petrochemical EPDM 4045, and the coupling agent is KH550, and the lubricant is PE wax, and described is anti-oxidant
Agent is the mixture of the quality such as antioxidant 1076 and antioxidant 168.
The preparation method is as follows:
1) enhancing powder is poured into the blender configured with high-pressure sprayer, while stirring powder, by high pressure spray
Silane coupling agent in day with fog is sprayed onto enhancing powder, spray time 8min, continues to stir 30min, this process after spray
It is carried out under conditions of 70 DEG C；
2) other raw materials except powder and silane coupling agent will be enhanced to feed from the master of double screw extruder after mixing
Material mouth is added, and extruder barrel is added from the side spout of double screw extruder in the mixture for enhancing powder and silane coupling agent
It is interior；
3) control double screw extruder carries out extrusion molding under conditions of 210 DEG C under 400rpm screw speed, after extrusion
Cooling trough is cooling, and finished product is made in pelleter granulation.
Embodiment 2
A kind of scratch-resistant high-strength vehicle interior trim PP material, is prepared by following raw materials in part by weight:
80 parts of PP resin, 6 parts of toughener, 10 parts of powder of enhancing, 0.2 part of coupling agent, 0.3 part of nucleating agent, SOLID ORGANIC silicon
2.5 parts, 0.6 part of lubricant, 0.4 part of antioxidant.
The PP Choice of Resin CSPC EP548R, the enhancing powder are Italy's IMIFABI talcum powder
HTP1, the nucleating agent select Ai Di section, Japan NA-11, and the SOLID ORGANIC silicon is to win wound Degussa
Antiscratch100.The toughener is Tao Shi POE 8150, and the coupling agent is KH560, and the lubricant is
South Korea's cell EBS wax, the antioxidant are the mixture of the quality such as antioxidant 1076 and antioxidant 168.
The preparation method is as follows:
1) enhancing powder is poured into the blender configured with high-pressure sprayer, while stirring powder, by high pressure spray
Silane coupling agent in day with fog is sprayed onto enhancing powder, spray time 5min, continues to stir 30min, this process after spray
It is carried out under conditions of 60 DEG C；
2) other raw materials except powder and silane coupling agent will be enhanced to feed from the master of double screw extruder after mixing
Material mouth is added, and extruder barrel is added from the side spout of double screw extruder in the mixture for enhancing powder and silane coupling agent
It is interior；
3) control double screw extruder carries out extrusion molding under conditions of 230 DEG C under 300rpm screw speed, after extrusion
Cooling trough is cooling, and finished product is made in pelleter granulation.
Embodiment 3
A kind of scratch-resistant high-strength vehicle interior trim PP material, is prepared by following raw materials in part by weight:
54 parts of PP resin, 12 parts of toughener, 30 parts of powder of enhancing, 0.6 part of coupling agent, 0.3 part of nucleating agent, SOLID ORGANIC silicon
2.5 parts, 0.6 part of lubricant, 0.4 part of antioxidant.
The PP Choice of Resin Shanghai match section K7926, the enhancing powder are Italy's IMIFABI talcum powder
HTP3, the nucleating agent select Ai Di section, Japan NA-11, and SOLID ORGANIC silicon is Dow corning 4000-50A and win wound moral is solid
Match the mixture that Antiscratch100 mass ratio is 1:1.The toughener is A Kema EMA AX8900, the coupling
Agent is KH550, and the lubricant is PETS, and the antioxidant is the quality such as antioxidant 1076 and antioxidant 168
Mixture.
The preparation method is as follows:
1) enhancing powder is poured into the blender configured with high-pressure sprayer, while stirring powder, by high pressure spray
Silane coupling agent in day with fog is sprayed onto enhancing powder, spray time 10min, continues to stir 20min, this process after spray
It is carried out under conditions of 70 DEG C；
2) other raw materials except powder and silane coupling agent will be enhanced to feed from the master of double screw extruder after mixing
Material mouth is added, and extruder barrel is added from the side spout of double screw extruder in the mixture for enhancing powder and silane coupling agent
It is interior；
3) control double screw extruder carries out extrusion molding under conditions of 190 DEG C under 600rpm screw speed, after extrusion
Cooling trough is cooling, and finished product is made in pelleter granulation.
Comparative example 1
Other enhance powder and select Liaoning prosperous up to SD9066 with embodiment 1.
Comparative example 2
Other are with embodiment 2, but SOLID ORGANIC silicon chooses Hai Langte LYMB2411.
Comparative example 3
Other are with embodiment 3, but not Added Nucleating Agents.
Comparative example 4
Formula components and ratio are identical with embodiment 1, but when preparation that all components are uniform in stirrer for mixing
Afterwards, directly enter in extruder barrel from the main spout of double screw extruder.
Table 1 is the performance for the pp material that embodiment 1-3 and comparative example 1-4 is obtained.
Table 1
In table 1, the corresponding execution standard difference of detection project is as follows: weatherability PV3930；Scratch resistance, NES M0159；
Notch impact strength, ISO 180；Bending modulus ISO 178.
Claims (10)
1. a kind of scratch-resistant high-strength vehicle interior trim PP material, which is characterized in that be prepared by following raw materials in part by weight:
50~80 parts of PP resin, 5~20 parts of toughener, 1~30 part of powder of enhancing, 0.02~0.6 part of coupling agent, nucleating agent 0.2
~0.6 part, 0.5~4 part of SOLID ORGANIC silicon, 0.2~1 part of lubricant, 0.2~0.5 part of antioxidant.
2. scratch-resistant high-strength vehicle interior trim PP material as described in claim 1, which is characterized in that the enhancing powder is
Italian IMIFABI talcum powder.
3. scratch-resistant high-strength vehicle interior trim PP material as claimed in claim 2, which is characterized in that the enhancing powder is
One of HTP1, HTP1L, HTP2, HTP2L, HTP3, HM4, HTP05, HTP05L, HTPULTRA5 and HTPULTRA5L or one
Kind or more mixture.
4. scratch-resistant high-strength vehicle interior trim PP material as described in claim 1, which is characterized in that the nucleating agent selection
Japanese Ai Di section NA-11.
5. scratch-resistant high-strength vehicle interior trim PP material as described in claim 1, which is characterized in that the SOLID ORGANIC silicon
It selects Dow corning 4000-50A and/or wins wound Degussa Antiscratch100.
6. scratch-resistant high-strength vehicle interior trim PP material as described in claim 1, which is characterized in that the toughener is
The mixture of one of EPDM, POE, EMA or more than one arbitrary proportions；The coupling agent is KH550 or KH560；Institute
The lubricant stated is PE wax or EBS or PETS；The antioxidant is the quality such as antioxidant 1076 and antioxidant 168
Mixture.
7. the preparation method of any scratch-resistant high-strength vehicle interior trim PP material of claim 1-6, which is characterized in that according to
Parts by weight mix above-mentioned raw materials, are extruded under 190~230 DEG C of temperature-controlled conditions, 250~650rpm screw speed later
Type.
8. the preparation method of scratch-resistant high-strength vehicle interior trim PP material as claimed in claim 7, which is characterized in that will first increase
Strong powder is uniformly mixed with silane coupling agent, and screw extruder is added with other raw materials again later and carries out extrusion forming.
9. the preparation method of scratch-resistant high-strength vehicle interior trim PP material as claimed in claim 8, which is characterized in that increasing
During strong powder is sufficiently stirred, silane coupling agent 5-10min, the silane coupling agent of spray are sprayed on enhancing powder
Quality be enhance powder quality 2%, continue 20~30min of stirring later, this process carries out under conditions of 60~80 DEG C.
10. the preparation method of scratch-resistant high-strength vehicle interior trim PP material as claimed in claim 8, which is characterized in that squeeze
Before molding, other raw materials except powder and silane coupling agent will be enhanced after mixing from the main feeding of double screw extruder
Mouth is added, and the mixture for enhancing powder and silane coupling agent is added in extruder barrel from the side spout of double screw extruder,
Extrusion forming later.
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| CN116023741A (en) * | 2022-12-30 | 2023-04-28 | 青岛国恩科技股份有限公司 | Wear-resistant scratch-resistant low-linear expansion coefficient polypropylene material and preparation method thereof |
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