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Flame-retardant GMT ceiling plate and processing method thereof

A sheet and ceiling technology, applied in the field of flame retardant GMT ceiling sheet and its processing, can solve the problems of excessive toxic substances, heavy odor, environmental pollution, etc., and achieve the effect of enhancing adhesion and long-term use

Inactive Publication Date: 2020-12-11
XIANGYANG FUHUANG VEHICLE TRIMS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a flame-retardant GMT ceiling plate and its processing method, which solves the problem that the existing flame-retardant GMT plate ceiling of automobiles has a heavy smell due to the addition of various flame retardants to meet the flame-retardant requirements. , toxic substances exceed the standard, and pollute the environment, not environmentally friendly

Method used

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  • Flame-retardant GMT ceiling plate and processing method thereof
  • Flame-retardant GMT ceiling plate and processing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] S1. Initially mixed compound flame retardant glue: First, measure 45 parts of brominated polystyrene, 2 parts of shellac, 2 parts of dextrin, 7 parts of magnesium hydroxide, and 7 parts of hydrogen in corresponding weight ratios by weighing equipment Aluminum oxide, 7 parts of dimethyldichlorosilane and 2 parts of glyceride, and the measured components were poured into a mixing mixer in turn, and stirred for 35 minutes at a speed of 550r / min and a temperature of 28°C, so that The raw materials are fully mixed to complete the initial mixing of the composite flame retardant glue;

[0033] S2. Preparation of modified composite flame retardant rubber powder: Slowly stir the raw material in step S1 at a speed of 350r / min for 1.5h until it dissolves into a gel, then pour the gel composite flame retardant sol into a dryer, and Drying at a temperature of 75°C for 25 minutes, so that the sol is coagulated into a block, and then the block dry sol is crushed by a pulverizer, and s...

Embodiment 2

[0039] S1. Initially mixed compound flame retardant glue: First, measure 40 parts of brominated polystyrene, 1 part of shellac, 1 part of dextrin, 5 parts of magnesium hydroxide, and 5 parts of hydrogen in corresponding weight ratios by weighing equipment Aluminum oxide, 5 parts of dimethyldichlorosilane and 1 part of glyceride, and the measured components were poured into a mixing mixer in turn, and stirred for 30 minutes at a speed of 500 r / min and a temperature of 26 ° C, so that The raw materials are fully mixed to complete the initial mixing of the composite flame retardant glue;

[0040] S2. Preparation of modified composite flame retardant rubber powder: Slowly stir the raw materials in step S1 at a speed of 300r / min for 1 hour until dissolved into a gel, then pour the gel composite flame retardant sol into a dryer, Dry at 75°C for 20 minutes, so that the sol is coagulated into a block, and then the block dry sol is crushed by a pulverizer, and screened through a 100-me...

Embodiment 3

[0046] S1. Initially mixed compound flame retardant glue: First, measure 50 parts of brominated polystyrene, 3 parts of shellac, 3 parts of dextrin, 10 parts of magnesium hydroxide, and 10 parts of hydrogen in corresponding weight ratios by weighing equipment Alumina, 10 parts of dimethyldichlorosilane and 3 parts of glyceride, and the measured components were poured into a mixing mixer in turn, and stirred for 40 minutes at a speed of 600r / min and a temperature of 30°C to make The raw materials are fully mixed to complete the initial mixing of the composite flame retardant glue;

[0047] S2. Preparation of modified composite flame retardant rubber powder: Slowly stir the raw materials in step S1 at a speed of 400r / min for 2 hours until dissolved into a gel, then pour the gel composite flame retardant sol into a dryer, Dry at 80°C for 30 minutes, so that the sol is coagulated into a block, and then the block dry sol is crushed by a pulverizer, and screened through a 110-mesh s...

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Abstract

The invention discloses a flame-retardant GMT ceiling plate and a processing method thereof. The flame-retardant GMT ceiling plate is prepared from, by weight, 40-50 parts of glass fibers, 10-20 partsof polypropylene fibers, 5-10 parts of urea-formaldehyde resin, 1-5 parts of adhesive, 3-5 parts of modified composite flame-retardant rubber powder and 1-3 parts of stabilizer, wherein the modifiedcomposite flame-retardant rubber powder is prepared from, by weight, 40-50 parts of brominated polystyrene, 1-3 parts of shellac, 1-3 parts of dextrin, 5-10 parts of magnesium hydroxide, 5-10 parts ofaluminum hydroxide, 5-10 parts of dimethyldichlorosilane and 1-3 parts of glyceride. The invention relates to the technical field of automobile accessory production materials. According to the flame-retardant GMT ceiling plate and the processing method thereof, the bonding force requirement of rubber powder can be met, the overall flame-retardant effect of the plate can be achieved, and on the premise that various mechanical properties and forming properties meet the requirements, the horizontal combustion speed is not lower than the B level, the vertical combustion speed is smaller than or equal to 100 mm / min, the oxygen index is larger than or equal to 22%, and the smoke density level is smaller than or equal to 70; and no toxic additive with pungent smell is used, and the paint is non-toxic and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of production materials for auto parts, in particular to a flame-retardant GMT ceiling plate and a processing method thereof. Background technique [0002] GMT material has relatively high specific strength, can produce lightweight parts, can be repeatedly processed and shaped, consumes less material, and can effectively reduce production costs. GMT materials began to be used in foreign automobile industries in 1990, effectively realizing To reduce the weight of automobiles, the GMT material has excellent performance, smaller dimensional changes, and lower thermal conductivity. It can be used in the interior roof of automobiles. GMT is the abbreviation of (long) glass fiber reinforced polypropylene thermoplastic composite sheet. It is a A new type of GMT material, the application comparison between GMT material and other materials in automobile tents is mainly reflected in the following aspects: 1. Small den...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/02B32B27/02B32B27/32B32B7/12B32B33/00B32B37/12B32B37/06D06M15/564D06M15/423D06M11/70
CPCB32B5/02B32B33/00B32B7/12B32B5/08B32B37/12B32B37/06D06M15/564D06M15/423D06M11/70D06M2101/20B32B2262/14B32B2262/101B32B2262/0253B32B2260/021B32B2260/046B32B2260/04B32B2307/3065B32B2605/08
Inventor 桂文许琴霞胡苇杭
Owner XIANGYANG FUHUANG VEHICLE TRIMS CO LTD
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