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A kind of direct injection molding leather-like texture automotive interior material and preparation method thereof

An injection molding, automotive interior technology, applied in the field of materials, can solve the problems of assembly size, pollution of the air in the car, migration of harmful substances, etc., to achieve the effect of reducing material and manufacturing costs, reducing material consumption, and reducing manufacturing costs

Active Publication Date: 2020-03-31
NANJING JULONG SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the comfort level of visual interior parts, OEMs mainly use skinning or spraying elastic paint on the surface of hard injection molded parts to give people a soft and comfortable touch. These methods are not only complicated in process, high in cost and low in efficiency, but also There will be assembly size problems, and even the migration of harmful substances, and the generation of VOC and other substances to pollute the air in the car

Method used

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  • A kind of direct injection molding leather-like texture automotive interior material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045]Add Cytec 3808, antioxidant 1010, calcium stearate, and polypropylene into the twin-screw extruder according to the weight ratio of 15:15:10:60 to prepare functional additive masterbatch; 35 parts of polypropylene, 25 parts of polybutylene terephthalate elastomer, 5 parts of chlorinated polyethylene with 33% chlorine content, 5 parts of maleic anhydride grafted polypropylene, polyether polyol and diisocyanate copolymer 15 parts of compound, 10 parts of talcum powder, 5 parts of functional additive masterbatch, 0.5 part of odor eliminating agent, described odor eliminating agent is the porous polyethylene that contains water and essence and component is 5:5, puts into high-speed mixer Mix for 1 min to obtain the mixture; add the obtained mixture through the main feeding hopper of the twin-screw extruder, close the exhaust port of the machine mouth, plasticize, extrude, draw, air-dry, and granulate to obtain a soft A polypropylene composite material with textured character...

Embodiment 2

[0047] Add Cytec 3808, antioxidant 168, silicone, and polypropylene into the twin-screw extruder according to the weight ratio of 15:15:10:60 to prepare functional additive masterbatch; 70 parts of propylene, 10 parts of thermoplastic polybutylene terephthalate elastomer, 3 parts of chlorinated polyethylene with 20% chlorine content, 2 parts of maleic anhydride grafted polyethylene, polycarbonate diol and 5 parts of diisocyanate copolymer, 20 parts of whiskers, 2 parts of functional additive masterbatch, 3 parts of odor eliminating agent, described odor eliminating agent is the ethylene-vinyl acetate copolymer that will contain water and alcohol ratio is 5:5 , put into a high-speed mixer and mix for 3 minutes to obtain a mixture; the obtained mixture is added through the main feeding hopper of a twin-screw extruder, and plasticized, extruded, drawn, air-dried, and granulated to obtain a soft Then, put the softened polypropylene composite material into the injection molding mac...

Embodiment 3

[0049] Cytec 3808, antioxidant 1010, polyethylene wax, and polypropylene copolymer are added to the twin-screw extruder according to the weight ratio of 15:15:10:60, and activated carbon is added through side feeding to prepare a functional additive master Granules; 50 parts of copolymerized polypropylene with a melt index of 50g / 10min, 20 parts of polybutylene terephthalate and polyether copolymer, 8 parts of chlorinated polyethylene with a chlorine content of 40%, grafted with maleic anhydride 3 parts of polypropylene, 10 parts of polyether polyol and diisocyanate copolymer, 15 parts of calcium carbonate, 3 parts of functional auxiliary agent masterbatch, 2 parts of odor eliminating agent, described odor eliminating agent will contain essence and ether for 5 parts The porous polyacrylamide of 5:5 is put into a high-speed mixer and mixed for 2min to obtain a mixture; the obtained mixture is added through the main feeding hopper of a twin-screw extruder, and the exhaust port of...

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Abstract

The invention relates to an automobile interior material and a preparation method thereof, in particular to a direct injection molding leather-like texture automobile interior material and a preparation method thereof. The material comprises the following components in parts by weight: 35 to 70 parts of polypropylene, 10 to 25 parts of thermoplastic polyester elastomer, 3 to 8 parts of chlorinated polyolefin, 2 to 5 parts of a compatilizer, 5 to 15 parts of thermoplastic polyurethane, 10 to 20 parts of mineral powder, and 2 to 5 parts of functional agent master batch. The method has the advantages that through the introduction of a thermoplastic elastomer with soft touch and good human body compatibility into a co-polypropylene system in combination with temperature gradient and rapid injection induced molding, an automobile interior part with leather-like high-grade touch is obtained through a one-step step, the comfort of a control cabin is improved, the assembly manufacture cost of components is reduced, and meanwhile, properties, such as scratch resistance and the like, of elastic surfaces is improved. The automobile interior material further has the characteristics of low odor and low VOC, and can effectively improve air quality in automobiles.

Description

technical field [0001] The invention relates to an automobile interior material and a preparation method thereof, in particular to a direct injection molding leather-like texture automobile interior material and a preparation method thereof, belonging to the field of material technology. Background technique [0002] With the improvement of people's living standards, people's requirements for vehicle performance are getting higher and higher not only in terms of power, economy, and safety, but also in terms of vehicle comfort. A comfortable driving environment has gradually become an important symbol of modern cars. Among them, car interior parts are the first parts that people see and feel when they enter the car, and its grade level is a very important part of the comfort of the whole car. At present, most middle and low-end car interior parts are mainly made of hard plastic injection molding, giving people a low-end feeling. In order to improve the comfort level of visu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/14C08L67/02C08L75/08C08L23/28C08L51/06C08L75/04
CPCC08L23/14C08L2201/08C08L2205/025C08L2205/035C08L2207/04C08L67/02C08L75/08C08L23/286C08L51/06C08L75/04
Inventor 王滨刘曙阳蒋顶军王笃金
Owner NANJING JULONG SCI&TECH CO LTD
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