SEBS-based eco-friendly TPO automobile internal decorating material and preparation method thereof

An automotive interior and environment-friendly technology, which is applied in the field of SEBS-based environment-friendly TPO automotive interior materials and its preparation, can solve problems such as hard hand feeling, poor process control, and obvious rubber smell, so as to reduce VOC content and improve soft performance , Improve the effect of soft feel

Active Publication Date: 2017-02-08
BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the mold life of slush-molded PVC is generally short, and the interior materials contain halogens and plasticizers, which are not environmentally friendly; polyolefin elastomer materials are recyclable, lightweight and environmentally friendly, and have become a new type of automotive interior. Decorative materials, providing domestic automakers with new solutions for automotive interior materials, but compared with slush-molded PVC products, its feel is harder and the hardness is higher
[0004] ABS is a commonly used hard plastic. Although the PVC-based slush molding process is cheap, it can

Method used

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  • SEBS-based eco-friendly TPO automobile internal decorating material and preparation method thereof
  • SEBS-based eco-friendly TPO automobile internal decorating material and preparation method thereof
  • SEBS-based eco-friendly TPO automobile internal decorating material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, the environment-friendly TPO automotive interior material based on SEBS is disclosed in the present embodiment, which includes from top to bottom: paint layer 1, TPO skin layer 2, sponge layer 3, and base layer 4. In this embodiment, soft TPO skin and soft sponge formula improve the soft feel of the interior materials and increase the comfort of the product, and the surface is coated with soft water-based polyurethane paint, compounded with soft sponge, and the three-layer structure improves the softness of the material performance, reducing the density of the product, meeting the demand for lightweight products, reducing the VOC content of materials in the car, and improving the environmental protection of the product.

[0040] Wherein, according to parts by weight, the above-mentioned TPO skin layer includes:

[0041]

[0042] Above-mentioned sponge layer comprises:

[0043]

[0044] Wherein, the above-mentioned homopolypropylene inc...

Embodiment 2

[0063] In the present embodiment, the above-mentioned TPO skin layer includes:

[0064]

[0065] Above-mentioned sponge layer comprises:

[0066]

[0067] The above-mentioned homopolypropylene includes 60-90% highly crystalline polypropylene homopolymer with a melt flow rate of 50-200 g / 10min, 10-40% highly crystalline polypropylene with a melt flow rate of 150-1000g / 10min Homopolymer.

[0068] The above-mentioned tackifying resin includes rosin resin, terpene resin, hydrocarbon resin, and the ring and ball softening point of the above-mentioned tackifying resin is 140-150°C.

[0069] Wherein, the above-mentioned additives include: metal soaps, phenols, stearic acid complex ester, phosphorous acid.

[0070] The above-mentioned inorganic fillers include: talcum powder, calcium carbonate, barium sulfate, montmorillonite, and nano glass microspheres, and the particle size of the above-mentioned inorganic fillers is 3500 mesh.

[0071] The above-mentioned rubbers include:...

Embodiment 3

[0086] The above TPO epidermis includes:

[0087]

[0088]

[0089] Above-mentioned sponge layer comprises:

[0090]

[0091] The above-mentioned homopolypropylene includes 60-90% highly crystalline polypropylene homopolymer with a melt flow rate of 50-200 g / 10min, 10-40% highly crystalline polypropylene with a melt flow rate of 150-1000g / 10min Homopolymer.

[0092] Wherein, the tackifying resin includes rosin resin, terpene resin, hydrocarbon resin, and the ring and ball softening point of the tackifying resin is 140-150°C.

[0093] The above-mentioned additives include: metal soaps, phenols, stearic acid complex esters, and phosphorous acid.

[0094] The above-mentioned inorganic fillers include: talcum powder, calcium carbonate, barium sulfate, montmorillonite, and nano glass microspheres, and the particle size of the above-mentioned inorganic fillers is 4000 mesh.

[0095] The above-mentioned rubbers include: NBR, silicone rubber, and EPDM rubber.

[0096] The...

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Abstract

The invention discloses a SEBS-based eco-friendly TPO automobile internal decorating material. A TPO surface layer comprises 50-80 parts of SEBS, 10-20 parts of polypropylene, 10-20 parts of tackifying resin, 5-20 parts of homo-polypropylene, 1-5 parts of an auxiliary agent, 0-15 parts an inorganic filling material and 2-5 parts of color master batches. A sponge layer comprises 35-60 parts of polypropylene, 40-55 parts of a toughening material, 15-25 parts of rubber and 20-30 parts of a foaming agent. SEBS is a linear three-block copolymer composed of polystyrene as a tail end segment and an ethene-butylene copolymer prepared through polybutadiene hydrogenation as a middle elastic block, has thermoplasticity, can be re-processed, is environmentally friendly, does not contain nonsaturated double bonds, has excellent aging resistance, contains polybutadiene, has a good handle and appropriate hardness, does not contain rubber and has a small smell and low VOC content.

Description

technical field [0001] The invention relates to the field of automotive interior materials, in particular to an SEBS-based environment-friendly TPO automotive interior material and a preparation method. Background technique [0002] In the interior design of automobiles, in order to achieve a certain feel and aesthetic effect on the instrument panel and door panels, some treatments are usually done on the skeleton. At present, the mainstream methods are: slush molding, polyurethane spraying or direct use of ABS skin. [0003] Taking the interior material of the instrument panel as an example, the soft material can be slush-molded polyvinyl chloride, polyolefin elastomer material, etc. In terms of texture and appearance, polypropylene injection molded parts are far from soft materials. On the other hand, the mold life of slush-molded PVC is generally short, and the interior materials contain halogens and plasticizers, which are not environmentally friendly; polyolefin elasto...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/12C08L93/04C08L45/00C08L23/08C08L25/06C08L9/02C08L83/04C08L23/16C08K13/04C08K7/20C08K3/34C08K3/26C08J9/10C08J9/08C09D175/04C09D7/12C08J7/04C08J7/12B32B27/32B32B27/12B32B33/00
CPCB32B27/12B32B27/32B32B33/00C08J5/18C08J7/0427C08J7/12C08J9/08C08J9/103C08J9/105C08J2203/02C08J2203/04C08J2203/20C08J2323/12C08J2353/02C08J2475/04C08K2201/003C08K2201/011C08L23/0815C08L23/12C08L25/06C08L53/025C08L2201/08C08L2203/14C08L2203/16C08L2205/02C08L2205/025C08L2205/035C09D175/04C08L93/04C08L45/00C08K13/04C08K7/20C08K3/34C08K2003/265C08K3/346C08L9/02C08L83/04C08L23/16C08L75/04C08K5/29C08K3/36
Inventor 李帅陈红梅滕大勇
Owner BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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