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Preparation method of low-VOC vehicle interior material

A technology of interior materials and pellets, which is applied in the field of preparation of low-VOC car interior materials, can solve the problems that cannot be completely removed, small molecular substances will be desorbed or regenerated, and achieve the effect of low VOC release

Pending Publication Date: 2021-06-22
张家港优全汽配有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The products prepared by various methods can play a certain role, but the small molecular substances that are adsorbed or removed at higher temperatures will be desorbed or regenerated, and cannot be completely removed

Method used

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  • Preparation method of low-VOC vehicle interior material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of a low-VOC vehicle interior material is carried out according to the following steps:

[0022] (1) According to the parts by weight, take 90 parts of polypropylene resin, 20 parts of VOC inhibitor, 10,105 parts of antioxidant, 20 parts of montmorillonite, 5 parts of diethyl malonate, and 3 parts of EPDM rubber. Put into a high-speed mixer, and stir for 8 minutes at a stirring rate of 500 rpm to obtain a mixture; the VOC inhibitor is a mixture of hydroxyaluminum p-tert-butylbenzoate and zinc-aluminum hydrotalcite in a mass ratio of 1:1;

[0023] (2) dropping the mixed material into the twin-screw extruder and melting, extruding and pelletizing to obtain pellets; the screw speed of the twin-screw extruder is 400rpm, and the vacuum degree is 0.1MPa, and the processing of the twin-screw extruder The temperature is 200℃;

[0024] (3) The pellets in step (2) are sent into an oven, the oven temperature is adjusted to 80° C., and the temperature is kept ...

Embodiment 2

[0026] A preparation method of a low-VOC vehicle interior material is carried out according to the following steps:

[0027] (1) According to parts by weight, take 80 parts of polypropylene resin, 12 parts of VOC inhibitor, 10764 parts of antioxidant, 12 parts of sepiolite, 4 parts of 4-acetoacetamido phenylphosphonate, acrylate grafted Put 2 parts of styrene-based elastomer into a high-speed mixer, and stir for 8 minutes under the condition of a stirring speed of 320 rpm to obtain a mixture; the VOC inhibitor is hydroxyaluminum p-tert-butylbenzoate and zinc-aluminum hydrotalcite according to the mass ratio 1:1 mixed mixture;

[0028] (2) dropping the mixed material into the twin-screw extruder and melting, extruding and pelletizing to obtain pellets; the screw speed of the twin-screw extruder is 320rpm, and the vacuum degree is 0.06MPa, and the processing of the twin-screw extruder The temperature is 160℃;

[0029] (3) The pellets in step (2) are sent into an oven, the oven...

Embodiment 3

[0031] A preparation method of a low-VOC vehicle interior material is carried out according to the following steps:

[0032] (1) According to the parts by weight, take 100 parts of polypropylene resin, 30 parts of VOC inhibitor, 8 parts of antioxidant 264, 30 parts of medical stone, 6 parts of ethoxy modified trisiloxane, linear low density polymer Put 5 parts of ethylene into a high-speed mixer, and stir for 6 minutes at a stirring rate of 650 rpm to obtain a mixture; the VOC inhibitor is hydroxyaluminum p-tert-butylbenzoate and zinc-aluminum hydrotalcite mixed in a mass ratio of 1:1 mixture;

[0033] (2) the mixture is dropped into the twin-screw extruder and melted, extruded and pelletized to obtain pellets; the screw speed of the twin-screw extruder is 350rpm, and the degree of vacuum is 0.2MPa, and the processing of the twin-screw extruder The temperature is 220℃;

[0034] (3) The pellets in step (2) are sent into an oven, the oven temperature is adjusted to 90° C., and...

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Abstract

The invention discloses a preparation method of a low-VOC vehicle interior material. The method comprises the following steps: uniformly mixing polypropylene resin, a VOC inhibitor, an antioxidant, an inorganic filler, a dispersant and a flexibilizer in a high-speed stirrer to obtain a mixture; then putting the mixture into a double-screw extruder for melting, extruding and granulating to obtain granules; and finally, drying the granules to obtain the low-VOC automotive interior material. The prepared automobile interior material has low VOC release amount, and the VOC release amount is not obviously increased under the condition of high temperature in an automobile. The tert-butyl benzoic acid hydroxy aluminum and the zinc-aluminum hydrotalcite are the key of low VOC release amount of the material prepared by the method, and the combination of the tert-butyl benzoic acid hydroxy aluminum and the zinc-aluminum hydrotalcite has a remarkable synergistic effect.

Description

technical field [0001] The invention belongs to the technical field of automobile decoration materials, and particularly relates to a preparation method of a low-VOC automobile interior decoration material. Background technique [0002] The interior materials of automobiles are generally made of polypropylene resin materials, and polypropylene is a polymer formed by addition polymerization of propylene. It has chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high wear-resistant processing properties, etc., but polypropylene materials have poor impact resistance at low temperature, poor weather resistance, poor surface decoration and poor electrical properties. , magnetism, light, heat, combustion and other aspects of the functional and actual needs of the gap, the modification of polypropylene has become the most active and fruitful field of plastic processing development. [0003] As the interior material of automobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/16C08L51/00C08L23/08C08L33/04C08L23/28C08K13/02C08K3/26C08K5/098
CPCC08L23/12C08L23/16C08L51/003C08L23/0815C08L33/04C08L23/286C08K13/02C08K3/26C08K5/098
Inventor 高佳
Owner 张家港优全汽配有限公司
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