CN106479061A - A kind of damage resistant, resistance to stress are turned white material for car interior trim parts and preparation method thereof - Google Patents
A kind of damage resistant, resistance to stress are turned white material for car interior trim parts and preparation method thereof Download PDFInfo
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- CN106479061A CN106479061A CN201510537510.7A CN201510537510A CN106479061A CN 106479061 A CN106479061 A CN 106479061A CN 201510537510 A CN201510537510 A CN 201510537510A CN 106479061 A CN106479061 A CN 106479061A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
Material for car interior trim parts and preparation method thereof the invention discloses a kind of damage resistant, resistance to stress are turned white, this material is by 40 ~ 88 parts of polypropylene, 0 ~ 20 part of mineral, 0 ~ 15 part of toughener, 0.1 ~ 0.3 part of coupling agent, 0.2 ~ 0.4 part of antioxidant, 0.1 ~ 0.5 part of the steady agent of light, 12 ~ 25 parts of damage resistant agent, 0.3 ~ 0.5 part of processing aid and 0.1 ~ 2 part of composition of toner.Wherein damage resistant agent is made up of 10 ~ 20 parts of polyethylene and 2 ~ 5 parts of damage resistant auxiliary agent.The composite that the present invention is obtained not only has good proof stress and turns white characteristic, also has excellent scratch resistant performance, can be used for producing the automotive upholsteries such as automobile door plate, column, seat decorative cover.
Description
Technical field
The invention belongs to field of high polymer material modification and in particular to a kind of damage resistant, resistance to stress are turned white material for car interior trim parts and preparation method thereof.
Background technology
Polypropylene（PP）It is a kind of thermoplastic, its density is low, finished surface hardness big, elastic height, thermostability, chemical stability, insulating properties are good, is widely used in the numerous areas producing, living.In auto industry, household electrical appliances and mechanical field, the range of application of modified polypropylene material constantly expands, and the technical requirements to modified polypropene are also more and more higher.
Because polypropylene surface hardness is low, the automotive upholstery prepared with modified polypropylene material, during producing, transport and using, usually can be scratched, thus it is attractive in appearance to affect it.In addition when modified polypropylene material is used for the automotive upholstery product such as injection molded automobile door-plate, column, easy stress concentration at push rod or assembling, stress whitening phenomenon, impact product appearance and performance in this position in material, thus leading to product unqualified.
Therefore, develop a kind of damage resistant, the resistance to stress material for car interior trim parts that turns white just very meaningful.
Content of the invention
Material for car interior trim parts and preparation method thereof it is an object of the invention to provide a kind of damage resistant, resistance to stress are turned white.
For achieving the above object, the technical solution used in the present invention is as follows：
A kind of damage resistant, resistance to stress are turned white material for car interior trim parts, and this material is prepared from by weight by following components：
Polypropylene：40 ~ 88 parts,
Mineral：0 ~ 20 part,
Toughener：0 ~ 15 part,
Coupling agent：0.1 ~ 0.3 part,
Antioxidant：0.2 ~ 0.4 part,
The steady agent of light：0.1 ~ 0.5 part,
Damage resistant agent：12 ~ 25 parts,
Processing aid：0.3 ~ 0.5 part,
Toner：0.1 ~ 2 part；
Described damage resistant agent is to be prepared from by weight by following components：10 ~ 20 parts of polyethylene, 2 ~ 5 parts of damage resistant auxiliary agent.
Scheme further, described polyethylene is high density polyethylene (HDPE), and described damage resistant auxiliary agent is silicone master batch.
Described polypropylene is COPP, HOPP or both mixture that melt flow rate (MFR) is 10 ~ 100 g/10min under conditions of 230 DEG C × 2.16kg.
Described mineral are Pulvis Talci, Calcium Carbonate, Muscovitum, wollastonite or their mixture, and its particle size range is 2 ~ 15 microns.
Described toughener is one of ethylene-octene copolymer elastomer, ethylene-propylene copolymer elastomer, ethylene propylene diene rubber, styrene-ethylene/BS or two kinds.
Described coupling agent is silane coupler；Described processing aid is stearate, preferably calcium stearate.
Described antioxidant is made up of primary antioxidant and auxiliary anti-oxidant, and described primary antioxidant is at least one in hindered phenol and sulphur ester antioxidant；Described auxiliary anti-oxidant is selected from least one in phosphite and esters antioxidant.
Described primary antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester（1010）Or β-(4 '-hydroxyl -3 ', 5 '-di-tert-butyl-phenyl) propanoic acid octadecyl（1076）；Described auxiliary anti-oxidant is three (2,4- di-tert-butyl-phenyl) phosphite ester（168）.
Described light stabilizer is hindered amine light stabilizer, preferably double (2,2,6,6- tetramethyl -4- piperidines) sebacate（770）.
Another goal of the invention of the present invention is the preparation method providing above-mentioned damage resistant, resistance to stress to turn white material for car interior trim parts, comprises the following steps：
（1）In proportion, by polypropylene, the steady agent of mineral, toughener, coupling agent, antioxidant, light, polyethylene, damage resistant auxiliary agent, processing aid and toner, put in high-speed mixer and mix 3 ~ 5 minutes；
（2）Said mixture is added extrusion in double screw extruder, is cooled to after room temperature through circulating water chennel, then enter pelleter pelletize after blower fan drying and obtain composite, wherein the barrel temperature of extruder is at 180 ~ 230 DEG C.
The performance of the polypropylene material of present invention preparation meets the performance requirement of the material for car interior trim parts such as product such as door-plate, column, seat decorative cover, and therefore, technical scheme includes the purposes as material for car interior trim parts for the polypropylene material of the present invention.
It is an advantage of the invention that：
Because the addition of damage resistant auxiliary agent makes material surface form one layer of lubricating layer in the present invention, effectively reduce the coefficient of friction of material surface, improve the scratch resistant performance of material；High density polyethylene (HDPE)（HDPE）Addition, the crystallization phase restriction of its crystallization and PP, destroy the big spherocrystal structure of PP, so that the crystallization on PP top layer is refined, reduce coefficient of friction and the scratch depth on the surface of modified polypropylene material to a certain extent, improve the scratch resistant performance of material.In addition, the synergism of HDPE and damage resistant auxiliary agent, make material add less damage resistant auxiliary agent, just can meet the requirement for scratch resistant performance for the material for car interior trim parts.So the PP composite material obtained by the present invention not only has good proof stress and turns white characteristic, also there is excellent scratch resistant performance, can be used for producing the automotive upholsteries such as automobile door plate, column, seat decorative cover.
Specific embodiment
The present invention is further illustrated with reference to embodiments.
Its stress whitening performance of testing of materials of each embodiment and comparative example acquisition and scratch resistant performance.
Stress whitening test is 200mm*140mm*3mm injection molding plates using sample, and test adopts falling sphere experimental machine, and height of the fall ball is 140cm, and falling sphere is 500g again.
Scratch resistant performance test condition is：Injection mo(u)lding size of sample is：210*160*3mm, carries out scratch experiment in specimen surface, and syringe needle is 1mm, and load is 10N, and cut is spaced apart 2mm, and horizontal and vertical each stroke of 10 ~ 20 lines, with the chromatic aberration of color difference meter test material, i.e. △ L.
Embodiment 1
By 40 parts of HOPPs, 20 parts of Calcium Carbonate, 15 parts of ethylene-octene copolymer elastomers, 0.3 part of silane coupler, 0.1 part of antioxidant 1010, steady 770, the 20 parts of high density polyethylene (HDPE)s of agent of 0.3 part of irgasfos 168,0.5 part of light, 5 parts of silicone master batch, 0.3 part of calcium stearate and 2 parts of toners, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize and obtain composite after hair-dryer is dried.
Embodiment 2
By 30 parts of COPPs, 20 parts of HOPPs, 20 parts of Pulvis Talci, 13 parts of ethylene-propylene copolymer elastomers, 0.2 part of silane coupler, 0.2 part of antioxidant 1076, steady 770, the 15 parts of high density polyethylene (HDPE)s of agent of 0.2 part of irgasfos 168,0.3 part of light, 2 parts of silicone master batch, 0.3 part of calcium stearate and 1.5 parts of toners, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
Embodiment 3
By 30 parts of COPPs, 30 parts of HOPPs, 15 parts of Muscovitums, 10 parts of ethylene propylene diene rubbers, 0.15 part of silane coupler, 0.2 part of antioxidant 1076, steady 770, the 13 parts of high density polyethylene (HDPE)s of agent of 0.2 part of irgasfos 168,0.3 part of light, 2 parts of silicone master batch, 0.3 part of calcium stearate and 1.5 parts of toners, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
Embodiment 4
By 42 parts of COPPs, 25 parts of HOPPs, 10 parts of Pulvis Talci, 2 parts of ethylene-octene copolymer elastomers, 3 parts of ethylene-propylene copolymer elastomers, 0.1 part of silane coupler, 0.2 part of antioxidant 1010, steady 770, the 15 parts of high density polyethylene (HDPE)s of agent of 0.2 part of irgasfos 168,0.3 part of light, 3 parts of silicone master batch, 0.3 part of calcium stearate and 0.5 part of toner, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
Embodiment 5
By 53 parts of COPPs, 25 parts of HOPPs, 2 parts of wollastonites, 2 parts of Muscovitums, 5 parts of styrene-ethylene/BSs, 0.1 part of silane coupler, 0.1 part of antioxidant 1010, steady 770, the 10 parts of high density polyethylene (HDPE)s of agent of 0.1 part of irgasfos 168,0.1 part of light, 2 parts of silicone master batch, 0.3 part of calcium stearate and 0.8 part of toner, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
Embodiment 6
By 88 parts of COPPs, 0.1 part of silane coupler, 0.1 part of antioxidant 1010, steady 770, the 10 parts of high density polyethylene (HDPE)s of agent of 0.3 part of irgasfos 168,0.3 part of light, 2 parts of silicone master batch, 0.5 part of calcium stearate and 0.1 part of toner, put in high-speed mixer and mix 3 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 190 DEG C of area, 200 DEG C of 2nd area, 205 DEG C of 3rd area, 215 DEG C of 4th area, 220 DEG C of 5th area, 225 DEG C of 6th area, 230 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
The stress whitening performance of composite of above-described embodiment 1-6 preparation and scratch resistant performance test data are shown in Table 1.
Table 1 embodiment 1-6 performance table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Damage resistant（△L） | 0.7 | 1.3 | 0.9 | 0.8 | 0.8 | 1.1 |
| Stress whitening phenomenon | No | No | No | No | No | No |
Comparative example 1
By 45 parts of COPPs, 25 parts of HOPPs, 10 parts of Pulvis Talci, 5 parts of ethylene-octene copolymer elastomers, 0.15 part of silane coupler, 0.1 part of antioxidant 1010, steady 770, the 15 parts of high density polyethylene (HDPE)s of agent of 0.3 part of irgasfos 168,0.3 part of light, 0.3 part of calcium stearate and 0.5 part of toner, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
Comparative example 2
By 57 parts of COPPs, 25 parts of HOPPs, 10 parts of Pulvis Talci, 5 parts of ethylene-octene copolymer elastomers, 0.15 part of silane coupler, 0.1 part of antioxidant 1010, steady 770, the 3 parts of silicone master batch of agent of 0.3 part of irgasfos 168,0.3 part of light, 0.3 part of calcium stearate and 0.5 part of toner, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
Comparative example 3
By 60 parts of polypropylene, 25 parts of HOPPs, 10 parts of Pulvis Talci, 5 parts of ethylene-octene copolymer elastomers, 0.15 part of silane coupler, 0.1 part of antioxidant 1010,0.3 part of irgasfos 168,0.3 part of steady 770,0.3 part of calcium stearate of agent of light and 0.5 part of toner, put in high-speed mixer and mix 5 minutes, then feed the mixture into extrusion in double screw extruder.The each zone temperatures of barrel of double screw extruder are respectively set to：One 180 DEG C of area, 185 DEG C of 2nd area, 195 DEG C of 3rd area, 195 DEG C of 4th area, 200 DEG C of 5th area, 200 DEG C of 6th area, 205 DEG C of head.Extrusion bar is cooled to room temperature by circulating water chennel, enters pelleter pelletize after hair-dryer is dried.
The stress whitening performance of material of comparative example 1-3 preparation and scratch resistant performance test data are shown in Table 2.
Table 2 comparative example 1 ~ 3 performance table
| Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Damage resistant（△L） | 2.8 | 2.5 | 4.0 |
| Stress whitening phenomenon | No | Have | Have |
Contrast table 1,2 understands, the PP composite material that the present invention is obtained not only has good proof stress and turns white characteristic, also has excellent scratch resistant performance, can be used for producing the automotive upholsteries such as automobile door plate, column, seat decorative cover.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply the present invention.Person skilled in the art obviously easily can make various modifications to these embodiments, and General Principle described herein is applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to embodiment here, according to the announcement of the present invention, the improvement made without departing from scope and modification all should be within protection scope of the present invention for those skilled in the art.
Claims (10)
1. a kind of damage resistant, resistance to stress turn white material for car interior trim parts it is characterised in that：This material is prepared from by weight by following components：
Polypropylene：40 ~ 88 parts,
Mineral：0 ~ 20 part,
Toughener：0 ~ 15 part,
Coupling agent：0.1 ~ 0.3 part,
Antioxidant：0.2 ~ 0.4 part,
The steady agent of light：0.1 ~ 0.5 part,
Damage resistant agent：12 ~ 25 parts,
Processing aid：0.3 ~ 0.5 part,
Toner：0.1 ~ 2 part；
Described damage resistant agent is to be prepared from by weight by following components：10 ~ 20 parts of polyethylene, 2 ~ 5 parts of damage resistant auxiliary agent.
2. damage resistant according to claim 1, resistance to stress turn white material for car interior trim parts it is characterised in that：Described polyethylene is high density polyethylene (HDPE), and described damage resistant auxiliary agent is silicone master batch.
3. damage resistant according to claim 1, resistance to stress turn white material for car interior trim parts it is characterised in that：Described polypropylene is COPP, HOPP or both mixture that melt flow rate (MFR) is 10 ~ 100 g/10min under conditions of 230 DEG C × 2.16kg.
4. damage resistant according to claim 1, resistance to stress turn white material for car interior trim parts it is characterised in that：Described mineral are Pulvis Talci, Calcium Carbonate, Muscovitum, wollastonite or their mixture, and its particle size range is 2 ~ 15 microns.
5. damage resistant according to claim 1, resistance to stress turn white material for car interior trim parts it is characterised in that：Described toughener is one of ethylene-octene copolymer elastomer, ethylene-propylene copolymer elastomer, ethylene propylene diene rubber, styrene-ethylene/BS or two kinds.
6. damage resistant according to claim 1, resistance to stress turn white material for car interior trim parts it is characterised in that：Described coupling agent is silane coupler；Described processing aid is stearate, preferably calcium stearate.
7. damage resistant according to claim 1, resistance to stress turn white material for car interior trim parts it is characterised in that：Described antioxidant is made up of primary antioxidant and auxiliary anti-oxidant, and described primary antioxidant is at least one in hindered phenol and sulphur ester antioxidant；Described auxiliary anti-oxidant is selected from least one in phosphite and esters antioxidant.
8. damage resistant according to claim 7, resistance to stress turn white material for car interior trim parts it is characterised in that：Described primary antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol esters or β-(4 '-hydroxyl -3 ', 5 '-di-tert-butyl-phenyl) propanoic acid octadecyl；Described auxiliary anti-oxidant is three (2,4- di-tert-butyl-phenyl) phosphite ester.
9. damage resistant according to claim 1, resistance to stress turn white material for car interior trim parts it is characterised in that：Described light stabilizer is hindered amine light stabilizer, preferably double (2,2,6,6- tetramethyl -4- piperidines) sebacate.
10. described damage resistant as arbitrary in claim 1-9, resistance to stress turn white material for car interior trim parts preparation method it is characterised in that：Comprise the following steps：
（1）In proportion, by polypropylene, the steady agent of mineral, toughener, coupling agent, antioxidant, light, polyethylene, damage resistant auxiliary agent, processing aid and toner, put in high-speed mixer and mix 3 ~ 5 minutes；
（2）Said mixture is added extrusion in double screw extruder, is cooled to after room temperature through circulating water chennel, then enter pelleter pelletize after blower fan drying and obtain composite, wherein the barrel temperature of extruder is at 180 ~ 230 DEG C.
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| CN107459713A (en) * | 2017-07-27 | 2017-12-12 | 中广核俊尔新材料有限公司 | PP composite material that a kind of proof stress turns white and its preparation method and application |
| CN108503949A (en) * | 2018-03-29 | 2018-09-07 | 苏州润佳工程塑料股份有限公司 | A kind of resistance to stress is whitened polypropylene composite and preparation method thereof |
| CN110669291A (en) * | 2019-10-28 | 2020-01-10 | 成都金发科技新材料有限公司 | Scratch-resistant polypropylene composite material and preparation method thereof |
| CN110922679A (en) * | 2019-11-14 | 2020-03-27 | 中广核俊尔（上海）新材料有限公司 | Scratch-resistant and light-aging-resistant polypropylene material and preparation method thereof |
| CN113549264A (en) * | 2020-04-26 | 2021-10-26 | 合肥杰事杰新材料股份有限公司 | Scratch-resistant polypropylene material and preparation method thereof |
| CN116218087A (en) * | 2023-02-28 | 2023-06-06 | 天津金发新材料有限公司 | Polypropylene composite material and preparation method and application thereof |
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