Additional heavy coating for car carpet and its making process

A manufacturing method and heavy coating technology, applied in the direction of layered products, etc., can solve the problems of cumbersome, unsatisfactory, and rubber cannot be directly recycled, and achieve the effect of convenient subsequent processing, dimensional stability and good shape retention.

Inactive Publication Date: 2005-12-14
SHANGHAI HUAXIANG RUBBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there are some disadvantages in using latex as a backing: First, before applying the latex layer, the latex paint must be prepared and blended, which is a relatively cumbersome and lengthy process, and requires that it be carried out in the carpet weaving factory.
[0009] As we all know, EPDM rubber needs to be vulcanized, and the vulcanized rubber cannot be directly recycled, but can only be treated as waste rubber.
Furthermore, the inherent odor of EPDM rubber is also a difficult problem to solve
Therefore, it cannot meet the requirements raised in the technical development of today's mid-to-high-end cars.

Method used

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  • Additional heavy coating for car carpet and its making process
  • Additional heavy coating for car carpet and its making process
  • Additional heavy coating for car carpet and its making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The purpose of this example is to demonstrate the effect of using EPDM and heat treating it. Choose the Mooney viscosity (ML 1+4 , 100°C) is 40±5 commercially available binary ethylene propylene rubber, remove the outer packaging of the raw rubber, cut it into small pieces of about 5kg with a rubber cutter, and use a 16' open rubber mixing machine to roll on a 1-1.5mm roller Rolling under the conditions of distance and 60±5°C roll temperature, after the raw rubber is covered with rolls, the film is rolled into a 2-3mm film, and then placed flat on the metal liner, sent to a 180°C hot air circulation oven for 8 hours, that is Be heat-treated binary ethylene propylene diene rubber (embodiment 1) of the present invention. In addition, take the same non-heat-treated binary ethylene propylene rubber, EPDM rubber, PVC powder raw materials, nitrile rubber raw rubber, styrene butadiene rubber raw rubber, and asphalt mineral materials as comparison samples, according to Shangha...

Embodiment 2～4 and comparative example 1～3

[0025] According to the formula preparation of table 2, manufacture the sizing material of additional heavy coating for car carpet, wherein " part " all refers to weight part. Binary ethylene propylene rubber and polyethylene are mixed evenly in an internal mixer, and polypropylene staple fibers, mineral fillers, and antifungal agents that have not been treated on the surface (comparative example 1) or have been treated with a silane coupling agent are added at 115 to 125 ° C , lubricants, coupling agents, and colorants, after mixing, the sheets are hot-pressed to make additional heavy-coated films for car carpets, and traditional EPDM rubber is added with vulcanizing agents to make vulcanized and cross-linked cars Carpets were used as Comparative Examples 2 and 3 with additional overcoated films.

[0026] component name

implement

Example 2

implement

Example 3

implement

Example 4

Compare

example 1

Compare

Example 2

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Embodiment 5 and comparative example 4

[0030]The film made in Example 3 is covered with polyethylene hot-melt adhesive film up and down, and before being sent into the laminating machine, a heat treatment drying tunnel is added, the temperature of the drying tunnel is set at 85 ± 5°C, and the time for the material to pass through the drying tunnel is About 3 minutes. After the three-layer material is pressed by a laminating machine, it is cut into car carpets at high temperature for additional heavy coating. In addition, the same product made of the same material that has not been heat-treated in the drying tunnel is used as Comparative Example 4, and the comparison results of the two are shown in Table 4.

[0031] Test items

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PUM

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Abstract

The present invention is additional heavy coating with rubber material as main component for high grade car carpet and its making process. The coating consists of rubber sheet of ethylene-propylene rubber as main material and hot molten film of polyethylene on both upper and lower surfaces of the rubber sheet, and the rubber sheet contains short polypropylene fiber pre-treated with silane coupler. The ethylene-propylene rubber material is heat treated in a stoving channel before mixing, and the rubber sheet is also passed through stoving channel before coating hot molten polyethylene. The coating has no smell and the material may be reused without environmental pollution. It has high size stability and good forming performance and may be used conveniently in carpet mill.

Description

technical field [0001] The present invention relates to an interior decoration used in middle and high-end cars and its manufacturing method, in particular to an additional heavy coating used as a carpet lining for this type of car and its manufacturing method. Background technique [0002] The goal pursued by today's mid-to-high-end cars is firstly the ride comfort, and the carpet, one of the important interior decoration parts, plays a series of important functions closely related to ride comfort, such as noise reduction, sound insulation, cushioning, and heat insulation. . For this reason, its composition as well as the materials used are very different from ordinary carpets. [0003] General machine-made carpets are composed of multiple layers such as tufted piles, base cloth, latex coating and secondary base cloth (referring to: editor-in-chief Xue Shixin, "Mechanism Carpet". Published by Chemical Industry Press, first edition in 2004, P285 ~288), in which the latex c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B33/00
Inventor 张丰
Owner SHANGHAI HUAXIANG RUBBER PROD
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