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Matte low-density spraying-free material for automotive interiors and preparation method thereof

An automotive interior, low-density technology, applied in the field of automotive interior materials, can solve the problem of not being able to meet the requirements at the same time, and achieve the effect of meeting the requirements of lightweight, good mechanical properties, and good compatibility

Pending Publication Date: 2021-01-05
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently disclosed materials are all modified with montmorillonite, talcum powder, calcium carbonate or kaolin, etc. The materials made by such modifiers cannot meet the requirements of the above-mentioned low-density interior parts for vehicles at the same time

Method used

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  • Matte low-density spraying-free material for automotive interiors and preparation method thereof
  • Matte low-density spraying-free material for automotive interiors and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment one, a kind of preparation method of matte low-density spray-free material for automobile interior decoration, it comprises the steps:

[0034] S1, prepare materials, weigh enough ASA high rubber powder, polyamide resin, SAN resin, ASA-g-GMA resin, silane modified filler, hollow glass microspheres, additive masterbatch, deodorant, scratch resistance Auxiliary. The diameter of the hollow glass microsphere is 50 μm, and its surface is treated with a silane coupling agent.

[0035] The auxiliary agent masterbatch is made by extrusion granulation of carrier, weather-resistant agent, lubricant and antioxidant, and the carrier is polyamide resin, wherein the weight ratio of carrier, weather-resistant agent, lubricant and antioxidant is according to Reasonable adjustments to material requirements.

[0036] ASA-g-GMA resin, additive master batch, deodorant and anti-scratch additive are mixed uniformly to obtain a premix, which includes 40% ASA-g-GMA resin, 15% deo...

Embodiment 2

[0042] Embodiment 2, a kind of preparation method of matte low-density spray-free material for automobile interior decoration, feed parameters are set by automatic feeding system: by weight percentage, according to 24% ASA high rubber powder, 30% poly Amide resin, 20% SAN resin, 4% silane-modified filler, 3% hollow glass microspheres and 19% premix are fed in proportion. All the other steps and process parameters are the same as in Example 1.

Embodiment 3

[0043] Embodiment three, a kind of preparation method of matte low-density spray-free material for automobile interior decoration, feed parameters are set by automatic feeding system: by weight percentage, according to 17% ASA high rubber powder, 33% poly Amide resin, 24% SAN resin, 4% silane-modified filler, 3% hollow glass microspheres and 19% premix are fed in proportion. All the other steps and process parameters are the same as in Example 1.

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Abstract

The invention discloses a matte low-density spraying-free material for automotive interiors. The matte low-density spraying-free material comprises the following components in percentage by weight: 10-40% of ASA high glue powder, 20-50% of polyamide resin, 5-25% of SAN resin, 5-10% of ASA-g-GMA resin, 3-10% of composite filler, 5-15% of auxiliary master batch, 1-5% of deodorant and 1-5% of anti-scratch additive. The composite filler comprises a silane modified filler and hollow glass beads; the diameter of the hollow glass beads is 15-100 microns, and the surfaces of the hollow glass beads aretreated by a silane coupling agent so that the hollow glass beads have relatively low odor and VOC, relatively low gloss, relatively good scratch resistance, weather resistance and processability andrelatively low material density. The invention further discloses a preparation method of the matte low-density spraying-free material for the automotive interiors, the process is simple, and large-scale production can be achieved.

Description

technical field [0001] The invention relates to an automobile interior material, in particular to a matte matte low-density spray-free material for the automobile interior and a preparation method thereof. Background technique [0002] Relevant OEMs in the automotive industry often require materials for the production of automotive interior and exterior parts, including mechanics, thermals, appearance, color, durability and other elements. The harmony and unity of appearance elements and color elements can further improve the refinement of parts. Among the appearance elements, gloss is an important index, and the CMF design of different parts requires different gloss. Parts located in the visual fatigue induction area usually require a matte design, which can effectively reduce the driver’s visual fatigue, improve driving safety, and also improve the texture of related parts, but the inner pillars located in this area and usually made of ABS materials Parts such as instrume...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L51/04C08L25/12C08K13/06C08K7/28C08K9/06C08K7/26C08K3/34C08K3/26B29C48/59B29B9/06
CPCC08L77/02C08L77/06B29C48/59B29B9/06C08L2205/035C08K2201/005C08K2201/003C08K2003/265C08L51/04C08L25/12C08K13/06C08K7/28C08K9/06C08K7/26C08K3/346C08K3/26
Inventor 明星星秦林林王波韦啸赖礼汇王志白
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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