Formula and preparation technology of light fiber-reinforced thermoplastic resin composite sheet material with high flame resistance

A technology for reinforcing thermoplastics and thermoplastic resins, which is applied in the field of manufacturing and molding fiber-reinforced thermoplastic resin composite materials, which can solve the problems of high processing costs of flame-retardant fibers, and achieve the effects of shortened production time, low cost, and simple and easy-to-operate production process

Active Publication Date: 2014-07-30
浙江华江科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of using flame-retardant fiber is that the composite board can achieve a better flame-retardant effect without post-treatment. Flame-retardant fibers include flame-retardant thermoplastic resin fibers such as flame-retardant polypropylene fibers, flame-retardant polyamide fibers, etc.; there are also some special Fibers such as aramid fiber, polyimide fiber, melamine fiber, etc. Patent CN201110259155.3 discloses a glass fiber / flame-retardant polypropylene fiber lightweight composite board and its preparation method. The prepared lightweight composite board has good flame-retardant type, formability and excellent comprehensive mechanical properties, but the processing cost of flame retardant fiber is relatively high

Method used

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  • Formula and preparation technology of light fiber-reinforced thermoplastic resin composite sheet material with high flame resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 40kg of basalt fiber and 40kg of polypropylene fiber are fed in the opener, after initial mixing, transported to the cotton storage bin, carded into a thin net, then 8kg of adhesive glue is sprayed on the thin net, and then 12kg of aluminum hydroxide is blocked. The burning agent is sprayed on the mixed fiber net, and the adhesive glue is mixed with 6.8kg of acrylate adhesive, 0.2kg of titanate coupling agent, 0.8kg of sodium montmorillonite, and 0.2kg of antioxidant 1010. The mixed fiber web of flame retardant is laid by a web laying machine, and then passed through a needle punching machine to form an intermediate product. The intermediate product is aged in a tenter oven at 190°C at a speed of 5m / min, and then enters into a 210°C hot press for 2s together with the adhesive film and non-woven fabric for molding, with a pressure of 10MPa, and is then cooled and shaped by a 25°C cold pressing roller. , made of flame retardant lightweight fiber reinforced thermoplastic r...

Embodiment 2

[0045] 40kg of bamboo fiber and 40kg of polyamide fiber were fed into the bale opener, after initial mixing, transported to the cotton storage bin, carded into a thin net, then 12kg of adhesive glue was sprayed on the thin net, and then 8kg of magnesium hydroxide was blocked. The burning agent is sprayed on the mixed fiber net, and the adhesive glue is mixed with 10.5kg of acrylate adhesive, 0.3kg of titanate coupling agent, 1kg of sodium montmorillonite, and 0.2kg of antioxidant 1010. The mixed fiber web of the fuel is laid by a web laying machine, and then an intermediate product is formed by a needle punching machine. The intermediate product is aged in a tenter oven at 210°C at a speed of 4m / min, and then enters into a 230°C hot press for 10s together with the adhesive film and non-woven fabric for molding at a pressure of 10MPa, and is then cooled and shaped by a 25°C cold pressing roller. , made of flame retardant lightweight fiber reinforced thermoplastic resin composit...

Embodiment 3

[0047] 40kg of carbon fiber fibers and 40kg of polyester fibers are fed into the opener, after initial mixing, transported to the cotton storage bin, carded into a thin net, and then sprayed with 8kg of adhesive glue on the thin net, and then 9kg of ammonium polyphosphate and 3kg of pentaerythritol flame retardant was sprayed on the mixed fiber net, and the adhesive glue was mixed with 6.8kg of acrylate adhesive, 0.2kg of titanate coupling agent, 0.8kg of sodium-based montmorillonite, and 0.2kg of antioxidant 1010. The mixed fiber web sprayed with flame retardant is laid by a web laying machine, and then passed through a needle punching machine to form an intermediate product. The intermediate product is aged in a tenter oven at 210°C at a speed of 4m / min, and then enters into a 250°C hot press for 5s together with the adhesive film and non-woven fabric for molding, and then goes through a 25°C cold-pressing roller to cool and shape. Flame retardant lightweight fiber reinforce...

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Abstract

The invention discloses a formula and a preparation technology of a light fiber-reinforced thermoplastic resin composite sheet material with high flame resistance. The sheet material is composed of, 30-50% of reinforced fiber, 30-50% of thermoplastic resin fiber, 5-15% of halogen-free fire retardant powder and 5-15% of a bonding glue solution. The preparation technology comprises: weighing reinforced fiber and thermoplastic resin fiber according to the ratio, and performing preliminary mixing; utilizing a blower fan to convey reinforced fiber and thermoplastic fiber to a cotton storage bin; and utilizing the effect of free fall to enable fiber to be mixed fully, dispersed uniformly and the like. The light fiber-reinforced thermoplastic resin composite sheet material with high flame resistance has the advantages of simple production technology, low cost, excellent flame resistance and no obvious reduction on mechanical properties, is extremely applicable to fields of automotive trims, building decoration and the like, and has great practical value.

Description

technical field [0001] The invention relates to the field of manufacturing and molding of fiber-reinforced thermoplastic resin composite materials, in particular to the formulation and preparation process of a lightweight fiber-reinforced thermoplastic resin composite sheet with high flame retardancy. Background technique [0002] Lightweight fiber-reinforced thermoplastic resin composites are mainly used as structural parts and important parts in automobiles due to their high strength, thermoplasticity, recyclability, and easy molding and processing. With the development of the market, lightweight fiber-reinforced thermoplastic resin composites have gradually developed into the construction industry, furniture manufacturing and other fields. [0003] Spontaneous combustion of automobiles is not uncommon, and consumers are concerned about its safety. Most building fires are caused by the combustion and diffusion of decorative panels. Therefore, with the increasing applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/04B32B37/06B32B37/10
Inventor 丁文鹏傅华康周立马国维陈佳扬赵涛
Owner 浙江华江科技股份有限公司
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