CN103073782A - Automobile instrument framework material and manufacturing method thereof - Google Patents

Automobile instrument framework material and manufacturing method thereof Download PDF

Info

Publication number
CN103073782A
CN103073782A CN 201110326778 CN201110326778A CN103073782A CN 103073782 A CN103073782 A CN 103073782A CN 201110326778 CN201110326778 CN 201110326778 CN 201110326778 A CN201110326778 A CN 201110326778A CN 103073782 A CN103073782 A CN 103073782A
Authority
CN
China
Prior art keywords
automobile instrument
fibre
instrument framework
framework
weight percent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 201110326778
Other languages
Chinese (zh)
Other versions
CN103073782B (en
Inventor
肖玲玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Genius New Materials Co Ltd
Original Assignee
Hefei Genius New Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hefei Genius New Materials Co Ltd filed Critical Hefei Genius New Materials Co Ltd
Priority to CN201110326778.8A priority Critical patent/CN103073782B/en
Publication of CN103073782A publication Critical patent/CN103073782A/en
Application granted granted Critical
Publication of CN103073782B publication Critical patent/CN103073782B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses an automobile instrument framework material and a manufacturing method thereof, belonging to the technical field of high-molecular materials. The automobile instrument framework material comprises, by weight, 45 to 68% of a thermoplastic resin, 30 to 50% of a continuous fiber, 2 to 3% of a compatilizer, 0 to 1% of a lubricant and 0 to 1% of an anti-oxidant. The manufacturing method for the material comprises the following steps: blending all the above-mentioned raw materials except the continuous fiber in proportion; carrying out plasticizing and fusing; allowing the plasticized and fused raw materials to form a polymer film through a sheeting die; introducing the continuous fiber having undergone preheating and dispersing into the top end of the polymer film to join in the film and allowing the continuous fiber and the polymer film to enter into a double-screw extruder together, wherein the continuous fiber is cut by screws and is then gently mixed with a premolten polymer; and directly delivering the premolten polymer into a pressing die of an automobile instrument framework for molding or pushing and pressing the premolten polymer into an injection mold of the automobile instrument framework for molding. The method provided by the invention has the advantages of low production cost and a short molding period; and a prepared automobile instrument framework has high rigidity and good impact resistance.

Description

A kind of automobile instrument framework material and manufacture method thereof
Technical field
The invention belongs to technical field of polymer materials, relate to a kind of automobile instrument framework material and manufacture method thereof.
Background technology
Fascia is the carrier of many operating functions such as sound equipment, air-conditioning, light, is the important component part of automotive trim.In order to ensure the various instrument that support and part can run at high speed and vibrational state under work, instrument board framework must have enough rigidity, working at a high speed and under the state of vibration to support its appended part, needing simultaneously to have preferably energy absorption capacity to make it reduce when meeting accident that external force aligns, copilot's impact.Meanwhile, for comfortable and aesthetic requirement, the feel of dashboard, color and luster and tone etc. also are subject to people's attention day by day.Framework material commonly used mainly contains the materials such as SMA/GF, PC/ABS, MPPO/GF, PP/GF, GMT.
Long fiber reinforced thermoplastic composites (Long-Fiber Reinforced Thermoplastic), the series of advantages such as have that specific tenacity is high, specific rigidity is large, material property can design, the moulding cost is low and being paid close attention to by people.
Summary of the invention
The defective that exists in order to overcome prior art the purpose of this invention is to provide a kind of excellent property, online the automobile instrument framework material of straight forming.
Another object of the present invention provides a kind of manufacture method of above-mentioned automobile instrument framework material.
Technical scheme of the present invention is as follows:
The invention provides a kind of automobile instrument framework material, this automobile instrument framework material is made by the component that comprises following weight percent:
Thermoplastic resin 45~68%,
Continuous fibre 30~50%,
Compatilizer 2~3%,
Lubricant 0~1%,
Oxidation inhibitor 0~1%.
Described thermoplastic resin is selected from one or more the material in polyolefine or other resins for universal use; Wherein: polyolefine further is selected from one or more the material in homo-polypropylene, Co-polypropylene or the polyethylene; Other resins for universal use further are selected from one or more the material in polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer, the polystyrene
Described continuous fibre is selected from one or more the material in inorganic fibre or the organic fibre; Wherein: inorganic fibre further is selected from one or more the material in glass fibre, boron fibre, carbon fiber or the basalt fibre; Organic fibre further is selected from one or more the material in nylon 66 fiber, Kafra fiber, polyphenylene sulfide fibre or the pet fiber.
Described compatilizer is selected from one or more the material in maleic anhydride, glycidyl methacrylate or acrylic acid grafts or the multipolymer.
Described lubricant is selected from one or more the material in stearic acid, Zinic stearas, calcium stearate, paraffin, Poly Propylene Wax, polyethylene wax or the amide waxe.
Described oxidation inhibitor is selected from one or more the material in Hinered phenols, hindered amines, phosphorous acid ester or the thioether kind antioxidant, preferred antioxidant 1010, antioxidant 1076, irgasfos 168 or thio-2 acid 2 stearyl ester (oxidation inhibitor DSTDP).
The present invention also provides a kind of manufacture method of above-mentioned automobile instrument framework material, and the method may further comprise the steps:
It is 45~68% thermoplastic resin with weight percent, weight percent is 2~3% compatilizer, weight percent is that 0~1% lubricant and weight percent are 0~1% oxidation inhibitor, be mixed by plasticizing, melting, form polymeric film by a sheeting die, simultaneously, weight percent is 30~50% continuous fibre through preheating, being introduced in the top of polymeric film and film behind the dispersion converges and together enters in the twin screw extruder, continuous fibre mildly is mixed in the polymkeric substance of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
The present invention compares with prior art, has the following advantages and beneficial effect:
1, excellent combination property of the present invention: long fiber reinforced thermoplastic composites has the characteristics such as high strength, high rigidity, shock-resistant, good heat resistance, make the instrument board framework after the moulding have very high rigidity and impact resistance, its good thermotolerance has also satisfied the requirement of fascia thermal ageing.
2, cost of the present invention is low: the online straight forming of long fiber reinforced thermoplastic composites is a kind of Technology of online direct production goods, omitted half-finished intermediate steps, greatly shortened the production cycle, the massive article of this explained hereafter is than the production cost low 20%~50% of common two-step approach.
3, product of the present invention is attractive in appearance: the LFT-D production technique is easy because of its moulding, and the handiness of appearance design is high, and various functions that can easily integrated instrument panel adapts to the requirement of various.
4, directly mold pressing or injection molding of the present invention, production cost is low, shaping cycle is short, and the automobile instrument framework of making has the characteristics such as rigidity is high, shock-resistance good, cost is low.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1
Homo-polypropylene 56%, maleic anhydride inoculated polypropylene 3%, antioxidant 1010 0.2%, irgasfos 168 0.3%, lubricant amide waxe 0.5% is plastifying fusion under 180~230 ℃ of temperature condition, then form the homo-polypropylene film by a sheeting die, simultaneously, continuous glass fibre is in the process preheating, being introduced in the top of homo-polypropylene film and film behind the dispersion converges and together enters in the twin screw extruder, the temperature range of twin screw extruder setting is 190~210 ℃, and to make glass fibre shared weight ratio in finished product by control glass fibre number of share of stock be 40%, continuous glass fibre mildly is mixed in the homo-polypropylene of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.The performance test results sees Table 1, and testing standard is ASTM.As can be seen from Table 1, instrument board framework material of the present invention has high strength, high rigidity, the characteristics such as shock-resistant, and the instrument board framework after the moulding has very high rigidity and impact resistance.
Table 1
Embodiment 1
Tensile strength (MPa) 122
Flexural strength (MPa) 179
Modulus in flexure (MPa) 7278
Socle girder notched Izod impact strength (kJ/m 2) 36
Embodiment 2
Co-polypropylene 46%, glycidyl methacrylate graft polypropylene 3%, lubricant polyethylene wax 1% is plastifying fusion under 180~200 ℃ of temperature condition, then form the poly-polypropylene film of copolymerization by a sheeting die, simultaneously, pet fiber is in the process preheating continuously, being introduced in the top of Co-polypropylene film and film behind the dispersion converges and together enters in the twin screw extruder, the temperature range of twin screw extruder setting is 180~200 ℃, and to make pet fiber shared weight ratio in finished product by control fiber number of share of stock be 50%, continuously pet fiber mildly is mixed in the Co-polypropylene of fritting after via the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
Embodiment 3
Acrylonitrile-butadiene-styrene (ABS) 67%, styrene-maleic anhydride copolymer 2%, antioxidant 1076 0.4%, irgasfos 168 0.6% is plastifying fusion under 210~250 ℃ of temperature condition, then form the acrylonitrile-butadiene-styrene (ABS) film by a sheeting die, simultaneously, continuous basalt fiber is in the process preheating, being introduced in the top of acrylonitrile-butadiene-styrene (ABS) film and film behind the dispersion converges and together enters in the twin screw extruder, the temperature range of twin screw extruder setting is 220~230 ℃, and to make basalt fibre shared weight ratio in finished product by control fiber number of share of stock be 30%, continuous basalt fiber mildly is mixed in the acrylonitrile-butadiene-styrene (ABS) of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.

Claims (7)

1. automobile instrument framework material, it is characterized in that: this automobile instrument framework material is made by the component that comprises following weight percent:
Thermoplastic resin 45~68%,
Continuous fibre 30~50%,
Compatilizer 2~3%,
Lubricant 0~1%,
Oxidation inhibitor 0~1%.
2. automobile instrument framework material according to claim 1 is characterized in that: described thermoplastic resin is selected from one or more the material in polyolefine or other resins for universal use; Wherein: polyolefine further is selected from one or more the material in homo-polypropylene, Co-polypropylene or the polyethylene; Other resins for universal use further are selected from one or more the material in polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer, the polystyrene.
3. automobile instrument framework material according to claim 1 is characterized in that: described continuous fibre is selected from one or more the material in inorganic fibre or the organic fibre; Wherein: inorganic fibre further is selected from one or more the material in glass fibre, boron fibre, carbon fiber or the basalt fibre; Organic fibre further is selected from one or more the material in nylon 66 fiber, Kafra fiber, polyphenylene sulfide fibre or the pet fiber.
4. automobile instrument framework material according to claim 1 is characterized in that: described compatilizer is selected from one or more the material in maleic anhydride, glycidyl methacrylate or acrylic acid grafts or the multipolymer.
5. automobile instrument framework material according to claim 1 is characterized in that: described lubricant is selected from one or more the material in stearic acid, Zinic stearas, calcium stearate, paraffin, Poly Propylene Wax, polyethylene wax or the amide waxe.
6. automobile instrument framework material according to claim 1 is characterized in that: described oxidation inhibitor is selected from one or more the material in Hinered phenols, hindered amines, phosphorous acid ester or the thioether kind antioxidant; Preferred antioxidant 1010, antioxidant 1076, irgasfos 168 or thio-2 acid 2 stearyl ester.
7. the manufacture method of the arbitrary described automobile instrument framework material of claim 1 to 6, it is characterized in that: the method may further comprise the steps:
It is 45~68% thermoplastic resin with weight percent, weight percent is 2~3% compatilizer, weight percent is that 0~1% lubricant and weight percent are 0~1% oxidation inhibitor, be mixed by plasticizing, melting, form polymeric film by a sheeting die, simultaneously, weight percent is 30~50% continuous fibre through preheating, being introduced in the top of polymeric film and film behind the dispersion converges and together enters in the twin screw extruder, continuous fibre is mixed in the polymkeric substance of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
CN201110326778.8A 2011-10-25 2011-10-25 A kind of Automobile instrument framework material and manufacture method thereof Active CN103073782B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110326778.8A CN103073782B (en) 2011-10-25 2011-10-25 A kind of Automobile instrument framework material and manufacture method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110326778.8A CN103073782B (en) 2011-10-25 2011-10-25 A kind of Automobile instrument framework material and manufacture method thereof

Publications (2)

Publication Number Publication Date
CN103073782A true CN103073782A (en) 2013-05-01
CN103073782B CN103073782B (en) 2016-01-20

Family

ID=48150493

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110326778.8A Active CN103073782B (en) 2011-10-25 2011-10-25 A kind of Automobile instrument framework material and manufacture method thereof

Country Status (1)

Country Link
CN (1) CN103073782B (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103554656A (en) * 2013-10-14 2014-02-05 上海俊尓新材料有限公司 Polypropylene composite material used for preparation of automobile bottom guard board by LFT-D technology
CN103978651A (en) * 2014-05-07 2014-08-13 福建海源新材料科技有限公司 LFT-D molding process for glass fiber reinforced PA
CN104292737A (en) * 2014-09-26 2015-01-21 苏州博利迈新材料科技有限公司 Shock-resistant automobile instrument board material and preparation method thereof
CN104292640A (en) * 2014-10-21 2015-01-21 上海交通大学 Continuous carbon fiber reinforced polypropylene composite material with high wetting property and preparation method of continuous carbon fiber reinforced polypropylene composite material
CN105202499A (en) * 2015-08-31 2015-12-30 浙江昱扬电子实业有限公司 Buckling type LED drive power supply box and production method thereof
CN105218945A (en) * 2015-10-26 2016-01-06 江苏通全球工程管业有限公司 Breast board of a kind of pasture fence and preparation method thereof
CN105218946A (en) * 2015-10-26 2016-01-06 江苏通全球工程管业有限公司 A kind of built-up type pasture fence
CN105482294A (en) * 2015-12-15 2016-04-13 苏州鑫德杰电子有限公司 Impact-resistant polyvinyl chloride composite used for instruments and preparation method of impact-resistant polyvinyl chloride composite
CN106009246A (en) * 2015-04-01 2016-10-12 合肥杰事杰新材料股份有限公司 Organic fiber reinforced polypropylene composite material and LFT-D forming process thereof
CN106426846A (en) * 2016-06-23 2017-02-22 安徽鼎远金属制品有限公司 Preparation method of internal and external frameworks of bushing of automobile round girder
CN106810767A (en) * 2017-01-22 2017-06-09 合肥华凌股份有限公司 Compressor bottom board, refrigerator, composite and preparation method thereof
CN107304263A (en) * 2017-07-26 2017-10-31 合肥同佑电子科技有限公司 A kind of transformer framework material and preparation method thereof
CN107629380A (en) * 2017-11-03 2018-01-26 重庆众誉材工科技有限公司 A kind of plastic material for possessing resistance to oxidation and impact resistance
CN107641212A (en) * 2017-09-28 2018-01-30 宁波帅特龙集团有限公司 A kind of automotive upholstery
CN107903614A (en) * 2017-12-05 2018-04-13 马鞍山市东方仪表有限公司 A kind of preparation method of wear resistant automobile instrument panel skin
CN107987512A (en) * 2017-12-05 2018-05-04 马鞍山市东方仪表有限公司 A kind of preparation method of low smell fascia
CN108070177A (en) * 2017-12-19 2018-05-25 衢州职业技术学院 Shock resistance automotive outer decorative board and preparation method thereof
CN108440845A (en) * 2018-04-29 2018-08-24 徐菡 A kind of impact resistance low temperature PP plastics and preparation method thereof
CN108948538A (en) * 2018-06-22 2018-12-07 苏州上车新材料科技有限公司 High-strength light-weight automotive wheels cover plate material and preparation method thereof
CN109705486A (en) * 2017-10-25 2019-05-03 江苏瑞凌新能源科技有限公司 A kind of superhard automobile parts plastic formula
CN109777029A (en) * 2017-11-13 2019-05-21 丹阳市日晟工业设备有限公司 A kind of console plastic fittings
CN110818924A (en) * 2019-11-21 2020-02-21 安徽旭升新材料有限公司 Carbon fiber reinforced composite material for automobile instrument panel and processing method thereof
CN111892776A (en) * 2019-09-10 2020-11-06 庞志清 Film, base film, waterproof roll and application

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101338051B (en) * 2008-08-08 2010-12-15 苏州工业园区和昌电器有限公司 Long glass fiber reinforced polypropylene material and preparation thereof
CN102181096B (en) * 2011-04-22 2012-12-19 松下家电研究开发(杭州)有限公司 Glass fiber reinforced polypropylene material and preparation method thereof

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103554656B (en) * 2013-10-14 2016-03-09 上海俊尓新材料有限公司 A kind of polypropylene composite material preparing automobile bottom backplate for LFT-D technology
CN103554656A (en) * 2013-10-14 2014-02-05 上海俊尓新材料有限公司 Polypropylene composite material used for preparation of automobile bottom guard board by LFT-D technology
CN103978651A (en) * 2014-05-07 2014-08-13 福建海源新材料科技有限公司 LFT-D molding process for glass fiber reinforced PA
CN104292737A (en) * 2014-09-26 2015-01-21 苏州博利迈新材料科技有限公司 Shock-resistant automobile instrument board material and preparation method thereof
CN104292640A (en) * 2014-10-21 2015-01-21 上海交通大学 Continuous carbon fiber reinforced polypropylene composite material with high wetting property and preparation method of continuous carbon fiber reinforced polypropylene composite material
CN106009246A (en) * 2015-04-01 2016-10-12 合肥杰事杰新材料股份有限公司 Organic fiber reinforced polypropylene composite material and LFT-D forming process thereof
CN105202499A (en) * 2015-08-31 2015-12-30 浙江昱扬电子实业有限公司 Buckling type LED drive power supply box and production method thereof
CN105202499B (en) * 2015-08-31 2017-11-14 浙江昱扬电子实业有限公司 Buckle-type LED drive power box and preparation method thereof
CN105218945A (en) * 2015-10-26 2016-01-06 江苏通全球工程管业有限公司 Breast board of a kind of pasture fence and preparation method thereof
CN105218946A (en) * 2015-10-26 2016-01-06 江苏通全球工程管业有限公司 A kind of built-up type pasture fence
CN105482294A (en) * 2015-12-15 2016-04-13 苏州鑫德杰电子有限公司 Impact-resistant polyvinyl chloride composite used for instruments and preparation method of impact-resistant polyvinyl chloride composite
CN106426846A (en) * 2016-06-23 2017-02-22 安徽鼎远金属制品有限公司 Preparation method of internal and external frameworks of bushing of automobile round girder
CN106810767A (en) * 2017-01-22 2017-06-09 合肥华凌股份有限公司 Compressor bottom board, refrigerator, composite and preparation method thereof
CN107304263A (en) * 2017-07-26 2017-10-31 合肥同佑电子科技有限公司 A kind of transformer framework material and preparation method thereof
CN107641212A (en) * 2017-09-28 2018-01-30 宁波帅特龙集团有限公司 A kind of automotive upholstery
CN109705486A (en) * 2017-10-25 2019-05-03 江苏瑞凌新能源科技有限公司 A kind of superhard automobile parts plastic formula
CN107629380A (en) * 2017-11-03 2018-01-26 重庆众誉材工科技有限公司 A kind of plastic material for possessing resistance to oxidation and impact resistance
CN109777029A (en) * 2017-11-13 2019-05-21 丹阳市日晟工业设备有限公司 A kind of console plastic fittings
CN107987512A (en) * 2017-12-05 2018-05-04 马鞍山市东方仪表有限公司 A kind of preparation method of low smell fascia
CN107903614A (en) * 2017-12-05 2018-04-13 马鞍山市东方仪表有限公司 A kind of preparation method of wear resistant automobile instrument panel skin
CN108070177A (en) * 2017-12-19 2018-05-25 衢州职业技术学院 Shock resistance automotive outer decorative board and preparation method thereof
CN108440845A (en) * 2018-04-29 2018-08-24 徐菡 A kind of impact resistance low temperature PP plastics and preparation method thereof
CN108948538A (en) * 2018-06-22 2018-12-07 苏州上车新材料科技有限公司 High-strength light-weight automotive wheels cover plate material and preparation method thereof
CN111892776A (en) * 2019-09-10 2020-11-06 庞志清 Film, base film, waterproof roll and application
CN110818924A (en) * 2019-11-21 2020-02-21 安徽旭升新材料有限公司 Carbon fiber reinforced composite material for automobile instrument panel and processing method thereof

Also Published As

Publication number Publication date
CN103073782B (en) 2016-01-20

Similar Documents

Publication Publication Date Title
CN103073782B (en) A kind of Automobile instrument framework material and manufacture method thereof
CN103387709A (en) Thermoplastic composite material, and preparation method and application thereof
CN105644074A (en) High strength wood-plastic coated coextruded composite material and preparation method thereof
CN107892772A (en) A kind of lightweight that resist warping continuous glass-fiber reinforced polypropylene compound material and preparation method
CN103113661A (en) High-strength high-toughness flame-retardant polypropylene composite and preparation method thereof
CN102850659A (en) Thermoplastic resin composite material for mine safety helmet
CN102002178B (en) Continuous long fiber reinforced polyolefin plastic wood composite material and preparation method thereof
CN108456416A (en) A kind of composition for thermoplastic elastomer and preparation method thereof for the encapsulated nylon of low temperature
CN104910517A (en) Bimodally-distributed glass fiber reinforced polypropylene composite material and preparation method thereof
CN101704969A (en) Wood plastic composite for injection and preparation method and application thereof
CN103160028A (en) Modified polypropylene material, preparation method and applications thereof
CN103044764A (en) High-toughness long-glass-fiber reinforced polypropylene composite material and method for preparing same
CN110655718A (en) Low-density, high-rigidity and high-toughness polypropylene composite material and preparation method thereof
CN103374179A (en) Polypropylene composition, preparation method and application thereof
CN106280016A (en) Low-density bionical PP composite material of super sub-light and preparation method thereof
CN109456563B (en) Special material for UHMWPE alloy compatibilization toughening modified polypropylene corrugated pipe and preparation method thereof
CN106009246A (en) Organic fiber reinforced polypropylene composite material and LFT-D forming process thereof
CN109912880B (en) Glass fiber felt reinforced thermoplastic composite material and preparation method thereof
CN103554656A (en) Polypropylene composite material used for preparation of automobile bottom guard board by LFT-D technology
CN103665570B (en) A kind of ultralow-temperature flexibility polypropene composition and preparation method thereof
CN104530739A (en) Thermotropic high-polymer liquid crystal reinforced/toughened polyolefin-base wood-plastic composite material and preparation method thereof
CN104194155A (en) Long-glass-fiber-reinforced polypropylene microfoamed material and preparation method thereof
CN109721853A (en) A kind of low gloss can be used for automotive upholstery, resistance to scratching PP composite material and preparation method thereof
CN107974020A (en) A kind of reinforced aromatic vinyl copolymer compositions and its application
CN103224668A (en) Preparation method of polypropylene-based bamboo-plastic foam composite material

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model