CN109851914A - A kind of modified polypropylene material for automobile interiors of low TVOC and preparation method thereof - Google Patents

A kind of modified polypropylene material for automobile interiors of low TVOC and preparation method thereof Download PDF

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Publication number
CN109851914A
CN109851914A CN201811623485.4A CN201811623485A CN109851914A CN 109851914 A CN109851914 A CN 109851914A CN 201811623485 A CN201811623485 A CN 201811623485A CN 109851914 A CN109851914 A CN 109851914A
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CN
China
Prior art keywords
modified polypropylene
low tvoc
automobile interiors
low
polypropylene material
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Pending
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CN201811623485.4A
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Chinese (zh)
Inventor
周楠婷
刘洋
周震杰
李秀峻
杨延俊
蔡青
周文
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.)
Shanghai Pret Composites Co Ltd
SAIC Volkswagen Automotive Co Ltd
Zhejiang Pret New Materials Co Ltd
Shanghai Pret Material Technology Co Ltd
Chongqing Pret New Materials Co Ltd
Shanghai Pret Chemical New Materials Co Ltd
Original Assignee
Shanghai Pret Composites Co Ltd
SAIC Volkswagen Automotive Co Ltd
Zhejiang Pret New Materials Co Ltd
Shanghai Pret Material Technology Co Ltd
Chongqing Pret New Materials Co Ltd
Shanghai Pret Chemical New Materials Co Ltd
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Publication date
Application filed by Shanghai Pret Composites Co Ltd, SAIC Volkswagen Automotive Co Ltd, Zhejiang Pret New Materials Co Ltd, Shanghai Pret Material Technology Co Ltd, Chongqing Pret New Materials Co Ltd, Shanghai Pret Chemical New Materials Co Ltd filed Critical Shanghai Pret Composites Co Ltd
Priority to CN201811623485.4A priority Critical patent/CN109851914A/en
Publication of CN109851914A publication Critical patent/CN109851914A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to modified polypropylene materials for automobile interiors of a kind of low TVOC and preparation method thereof.The material includes following components, the weight proportion of various components are as follows: 40-99 parts of acrylic resin;0-40 parts of ore body powder;0-20 parts of toughener;0.1-1 parts of antioxidant;Steady agent 0.1-0.5 parts of light;0.5-5 parts of eliminating smell agent.Its specific preparation step include the following: use two-component weighing balance; low smell and low TVOC polypropylene tree resin, talcum powder, toughener, antioxidant, the steady agent of light and eliminating smell agent is added in main feed mouth; material enters double screw extruder after mixing; enter back into fuse dipping die head and black soy sauce vacuum technology; through sink cooling and pelleter pelletizing, post-processing baking material and cooling packing are finally carried out.Based on this, modified polypropylene material has the feature of low TVOC, and simple process, meets the requirement of actual production, the requirement that further satisfaction the majority of consumers constantly promote in-car air quality more effectively pushes the development of China's automobile industry green material.

Description

A kind of modified polypropylene material for automobile interiors of low TVOC and preparation method thereof
Technical field
The present invention relates to modified polypropylene material for automobile interiors of a kind of low TVOC and preparation method thereof more particularly to one Kind is volatilized by using low TVOC acrylic resin and addition adsorbent in conjunction with black soy sauce vacuum and post-processing baking material technique removal Property small molecule, to prepare the modified polypropylene material of low TVOC.
Background technique
Lightweight, environmental protection and it is recyclable be automobile industry several developing directions, the application of plastic part is for reducing vapour Car weight amount, saving fuel oil promote environmental protection and recoverable various aspects to have significant advantage, the use ratio of auto plastics Example just gradually rises.Wherein, polypropylene is used extensively by its light inexpensive, easy processing molding and good mechanical performance In the automotive upholstery including instrument board, door-plate, centre gangway, column and glove compartment etc., and modified polypropylene material exists Dosage on automobile is then up to 20-50kg.
Pp material is heated in modifying process and shear action, the small molecule generated since thermal cracking phenomenon occurs And related auxiliaries, it will be discharged to some extent under applied at elevated temperature environment, and become harmful volatile organic matter.And it is interior empty Between it is narrow and closed, can not spread in a short time, pollute in-car air quality, in addition to bringing uncomfortable taking sense, more seriously Influence the health of occupant.
In order to promote in-car air quality and ensure consumer's human health, the end of the year 2016 are to force requirements of the national standard vapour Vehicle relevant enterprise strict implement, and provide on January 1st, 2017 after newly sizing sale vehicle must satisfy standard requirements, to smell It is proposed that limitation requires with volatile organic matter (VOC).Shang Qi group is in 2018 on this basis to automobile-used polypropylene material Low TVOC substance is put forward new requirements.TVOC refers to total volatile organic compounds, according to GB/T18883T-2002, determines Justice is sampled using Tenax GC or Tenax TA, and nonpolar chromatographic column (polarity index is less than 10) is analyzed, retention time Volatile organic compounds between normal hexane and hexadecane.So far for this purpose, the TVOC correlation of modified polypropylene material is ground Study carefully work almost without, and be effectively reduced TVOC content of material, further satisfaction the majority of consumers to in-car air quality not The disconnected high request promoted, more effectively pushes the development of China's automobile industry green environmental protection technique.Therefore, it is quite necessary to research and develop A kind of modified polypropylene material for automobile interiors of low TVOC.
Summary of the invention
The present invention provides modified polypropylene material for automobile interiors of a kind of low TVOC and preparation method thereof, by using Low TVOC acrylic resin and addition adsorbent remove volatile small molecule in conjunction with black soy sauce vacuum and post-processing baking material technique, To prepare the modified polypropylene material of low smell, low VOC, low TVOC.
In order to achieve the above object, the invention adopts the following technical scheme:
Acrylic resin of the present invention is one or more in the homopolypropylene or copolymer polypropylene of low TVOC, is melted Melting index is 20-50g/10min, the μ of TVOC≤15000 g/m^3 (100L pocket type method: 500cm^2 is molded plank).
The mineral powder is one or two kinds of mixtures of talcum powder or calcium carbonate, is more than 95% partial size point Cloth is at 0.5-5 μm.
The toughener is elastomer, total selected from ethylene-hexene co-polymers, ethylene-butene copolymer, ethylene-octene Polymers, ethylene-propylene-octene terpolymer, hydrogenation of ethylene-butadiene-styrene copolymer one or more.
For the antioxidant by arbitrarily forming than mixed primary antioxidant and auxiliary anti-oxidant, primary antioxidant is tetrapentaerythritol Ester;Auxiliary anti-oxidant is selected from least one of three (2,4- di-tert-butyl-phenyl) phosphite esters and the hard ester of thio-2 acid two.
The steady agent of the light is selected from salicylic acid to octyl phenyl ester, two uncle of 3,5- di-tert-butyl-4-hydroxybenzoic acid -2,4- At least one of butyl phenyl ester.
The eliminating smell agent refers to that adsorbent or extractant, adsorbent refer to porous or stratiform three-dimensional structure inorganic powder The compound at end or itself and the organic matter containing coordinated electronic, extractant refer to the capsule shape taste removal master batch containing liquid.On A kind of preparation method of the modified polypropylene material for automobile interiors of the low TVOC stated, specific steps are as follows:
Using two-component weighing balance, it is steady that polypropylene tree resin, talcum powder, toughener, antioxidant, light is added in main feed mouth Agent and smell eliminating smell agent, material enter double screw extruder after mixing, enter back into fuse dipping die head and black soy sauce vacuum work Skill finally carries out the cooling packing of post-processing baking material through sink cooling and pelleter pelletizing.It is low to distribute production technology: extrusion temperature It is 180-230 DEG C, engine speed is 300-500rpm, and vacuum degree is -0.5--0.15MPa, and baking material temperature is 100-150 DEG C, is dried The material time is 2-10h.
The positive effect of the present invention is, compared with prior art, the present invention starting with simultaneously from material prescription and process aspect. By using the polypropylene base-material of low TVOC, extrusion temperature is controlled, avoids generating in process due to heat scission reaction Volatile small molecule;In conjunction with black soy sauce vacuum technology, residual volume of the volatile small molecule in modified material is reduced;After passing through simultaneously Baking material technique is handled, accelerates modified material surface volatile small molecule to distribute, effective fast lifting material TVOC.Except this, for The material system of addition adsorbent is added, using hole configurations in large quantities or interlayer spacings are remained to base-material itself and process Chemical chelatropic reaction occurs for the volatile small molecule absorption locking of middle generation, then seals hole by highly viscous fluid, reduces The purpose of TVOC;For the material system of extractant is added, the capsule shape master batch containing liquid is in extrusion process and by hot extrusion Afterwards, small point of volatility for releasing extractant of the low boiling point containing active constituent, and being generated in base-material residual itself and process Son is mutually extracted with extractant, is pulled out under the action of negative pressure of vacuum, also achievees the purpose that reduce TVOC.
Specific embodiment
The purpose of the present invention is modified polypropylene materials for automobile interiors of a kind of low TVOC and preparation method thereof.Here is Embodiment and comparative example can be further understood from technical solution of the present invention by them.But the present invention is not so limited, all It is equivalent or equivalent transformation of the invention, is within the scope of the invention.
Embodiment and comparative example raw materials are as follows:
Acrylic resin 2: melt index 30, test condition: 230 DEG C of * 2.16kg;TVOC is 28000 μ g/m^3, test Method: 100L pocket type method, 500cm^2 are molded plank;
Acrylic resin 2: melt index 30, test condition: 230 DEG C of * 2.16kg;TVOC is 12000 μ g/m^3, test Method: 100L pocket type method, 500cm^2 are molded plank;
Toughener: ethylene-hexene co-polymers, it is commercially available;
Antioxygen agent prescription: thio-2 acid 18 ester ︰ tetra- [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] Ji Wusi Chun Zhi ︰ distearyl pentaerythritol diphosphite=1:2:1;The steady agent of light: salicylic acid is to octyl phenyl ester;
Eliminating smell agent 1: adsorbent;
Eliminating smell agent 2: extractant.
Low TVOC prolongs cutting edge of a knife or a sword test method: pocket type method 100L, 500cm^2 injection molding plates, and test condition is 65 DEG C of * 2H.
Embodiment and comparative example
Above-mentioned raw material are put into the mixed at high speed machine that revolving speed is about 800rpm first by weight percent shown in table 1 to mix 5min is closed, is then placed into double screw extruder, through sink cooling and pelleter pelletizing, it is cooling finally to carry out post-processing baking material It is packaged.Extrusion temperature is 180-230 DEG C, and engine speed is 500rpm, and vacuum degree is -0.8~-0.12MPa, and baking material temperature is 110 DEG C, the baking material time is 8h, and injection temperature is 230 DEG C.
The component of 1 modified polypropylene material of table (component content is weight percentage in table)
The low TVOC test result of 2 modified polypropylene material of table
As seen from the above table, material prescription and production technology these two aspects, base-material and smell taste removal using low TVOC are based on Agent, in conjunction with black soy sauce vacuum and baking material technique, so that the numerical value sharp fall of different modified polypropylene material TVOC.For those Material injection at automotive upholstery for, the requirement that further satisfaction the majority of consumers constantly promote in-car air quality, More effectively push the development of China's automobile industry green material.

Claims (9)

1. a kind of modified polypropylene material for automobile interiors of low TVOC, the raw material including following parts by weight:
2. the modified polypropylene material for automobile interiors of low TVOC according to claim 1 a kind of, which is characterized in that described Acrylic resin be one or more of in the homopolypropylene or copolymer polypropylene of low TVOC, melt index 20-50g/ The μ of 10min, TVOC≤15000 g/m^3.
3. the modified polypropylene material for automobile interiors of low TVOC according to claim 1 a kind of, which is characterized in that described Mineral powder be talcum powder or calcium carbonate one or two kinds of mixtures, be more than 95% particle diameter distribution at 0.5-5 μm.
4. the modified polypropylene material for automobile interiors of low TVOC according to claim 1 a kind of, which is characterized in that described Toughener be elastomer, be selected from ethylene-hexene co-polymers, ethylene-butene copolymer, ethylene-octene copolymer, ethylene-the third Alkene-octene terpolymer, hydrogenation of ethylene-butadiene-styrene copolymer one or more.
5. the modified polypropylene material for automobile interiors of low TVOC according to claim 1 a kind of, which is characterized in that described Antioxidant by arbitrarily being formed than mixed primary antioxidant and auxiliary anti-oxidant, primary antioxidant be tetrapentaerythritol ester;Auxiliary anti-oxidant Selected from least one of three (2,4- di-tert-butyl-phenyl) phosphite esters and the hard ester of thio-2 acid two.
6. the modified polypropylene material for automobile interiors of low TVOC according to claim 1 a kind of, which is characterized in that described The steady agent of light selected from salicylic acid in octyl phenyl ester, 2,4-di-t-butylphenyl 3,5-di-t-butyl-4-hydroxybenzoate It is at least one.
7. the modified polypropylene material for automobile interiors of low TVOC according to claim 1 a kind of, which is characterized in that described Eliminating smell agent refer to adsorbent or extractant.
8. the modified polypropylene material for automobile interiors of low TVOC according to claim 7 a kind of, which is characterized in that absorption Agent refers to porous or stratiform three-dimensional structure inorganic powder or the compound of itself and the organic matter containing coordinated electronic, extractant Refer to the capsule shape taste removal master batch containing liquid.
9. the preparation method of the modified polypropylene material for automobile interiors of low TVOC described in claim 1-7 is one of any, special Sign is, specific steps are as follows:
Using two-component weighing balance, main feed mouth be added polypropylene tree resin, talcum powder, toughener, antioxidant, the steady agent of light and Smell eliminating smell agent, material enter double screw extruder after mixing, enter back into fuse dipping die head and black soy sauce vacuum technology, warp Sink cooling and pelleter pelletizing finally carry out the cooling packing of post-processing baking material.It is low to distribute production technology: extrusion temperature 180- 230 DEG C, engine speed is 300-500rpm, and vacuum degree is -0.5--0.15MPa, and baking material temperature is 100-150 DEG C, the baking material time For 2-10h.
CN201811623485.4A 2018-12-28 2018-12-28 A kind of modified polypropylene material for automobile interiors of low TVOC and preparation method thereof Pending CN109851914A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103589072A (en) * 2013-10-24 2014-02-19 合肥会通新材料有限公司 Low-VOC (Volatile Organic Compound) polypropylene composite material for automotive interior parts and preparation method thereof
CN103724799A (en) * 2013-12-09 2014-04-16 天津金发新材料有限公司 Polypropylene combination with low smell and diffusion and preparation method thereof
CN105566750A (en) * 2014-11-10 2016-05-11 合肥杰事杰新材料股份有限公司 Volatile matter-removing master batch, and low-odor and low-volatility automotive interior decorative composite material and preparation method thereof
CN105602096A (en) * 2014-11-21 2016-05-25 合肥杰事杰新材料股份有限公司 Low-volatility polypropylene composite material used for automobile inner-decoration material and preparation method thereof
CN106317743A (en) * 2016-09-19 2017-01-11 南京德尔隆工程塑料有限公司 High-mobility low-odor scratch-resistant automobile trim polypropylene material and preparation method thereof
CN107446232A (en) * 2017-07-24 2017-12-08 合肥会通新材料有限公司 A kind of low smell food-grade endurance polypropylene composite and preparation method thereof
CN108148281A (en) * 2016-12-05 2018-06-12 合肥杰事杰新材料股份有限公司 A kind of low smell regenerating polypropylene composite material adornd for automobile interior exterior and preparation method thereof
CN108299736A (en) * 2017-12-25 2018-07-20 中广核俊尔(上海)新材料有限公司 A kind of low PP composite material and preparation method thereof distributed of low smell

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103589072A (en) * 2013-10-24 2014-02-19 合肥会通新材料有限公司 Low-VOC (Volatile Organic Compound) polypropylene composite material for automotive interior parts and preparation method thereof
CN103724799A (en) * 2013-12-09 2014-04-16 天津金发新材料有限公司 Polypropylene combination with low smell and diffusion and preparation method thereof
CN105566750A (en) * 2014-11-10 2016-05-11 合肥杰事杰新材料股份有限公司 Volatile matter-removing master batch, and low-odor and low-volatility automotive interior decorative composite material and preparation method thereof
CN105602096A (en) * 2014-11-21 2016-05-25 合肥杰事杰新材料股份有限公司 Low-volatility polypropylene composite material used for automobile inner-decoration material and preparation method thereof
CN106317743A (en) * 2016-09-19 2017-01-11 南京德尔隆工程塑料有限公司 High-mobility low-odor scratch-resistant automobile trim polypropylene material and preparation method thereof
CN108148281A (en) * 2016-12-05 2018-06-12 合肥杰事杰新材料股份有限公司 A kind of low smell regenerating polypropylene composite material adornd for automobile interior exterior and preparation method thereof
CN107446232A (en) * 2017-07-24 2017-12-08 合肥会通新材料有限公司 A kind of low smell food-grade endurance polypropylene composite and preparation method thereof
CN108299736A (en) * 2017-12-25 2018-07-20 中广核俊尔(上海)新材料有限公司 A kind of low PP composite material and preparation method thereof distributed of low smell

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Application publication date: 20190607

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