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Biomass composite material and preparation method thereof

A composite material and biomass technology, applied in the field of biomass composite materials and its preparation, to achieve the effects of excellent flame retardancy and aging resistance, high strength, and high service temperature

Inactive Publication Date: 2017-05-31
ACC BEIJING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few reports on the composites of natural biomass fibers reinforced with biomass resins through different forms of fabrics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Choose flax fiber plain weave fabric with a surface density of 140g / m 2 , using the silane coupling agent KH550 and the No. 1 liquid flame retardant of Shanghai Xusen Smoke Elimination Flame Retardant Co., Ltd. to prepare an aqueous solution with a coupling agent concentration of 2% and a flame retardant concentration of 10% to impregnate flax fibers Fabric, after drying at 105°C for 2 hours, a reinforced fabric with interfacial compatibilization and flame retardant pretreatment was obtained;

[0023] (2) The linen fabric treated above is impregnated with rosin-based epoxy resin by solution method. In the resin formula, 100 parts of rosin-based epoxy resin, 35 parts of rosin-based anhydride curing agent, and 3 parts of metal compound of quaternary ammonium salt and acetylacetone are selected as latent accelerator; the impregnation temperature is 40°C, and the drying temperature is 80°C. The prepreg has a moderate viscosity and an area density of 250g / m 2 , contain...

Embodiment 2

[0026] (1) Choose ramie fiber twill fabric with a surface density of 200g / m 2 , using the silane coupling agent KH550 and Newray911 flame retardant to prepare an aqueous solution with a coupling agent concentration of 2% and a flame retardant concentration of 10% to impregnate the ramie fiber fabric, the impregnation temperature is room temperature, and after immersion, it is dried at 105°C for 2 hours to obtain Reinforced fabrics with interfacial compatibilization and flame retardant pretreatment;

[0027] (2) The ramie fabric treated above is impregnated with rosin-based epoxy resin and itaconic acid epoxy resin complex by melting method. In the resin formula, 80 parts of rosin-based epoxy resin, 20 parts of itaconic acid epoxy resin, 45 parts of rosin-based curing agent, 3 parts of thiourea derivatives and imidazole salts are selected as latent accelerators; the impregnation temperature is 75±5°C. Main performance parameters of prepreg, resin content 48%, prepreg areal den...

Embodiment 3

[0030] (1) Choose ramie fiber twill fabric with a surface density of 200g / m 2, using the silane coupling agent KH550 and Newray911 flame retardant to prepare an aqueous solution with a coupling agent concentration of 2% and a flame retardant concentration of 20% to impregnate the ramie fiber fabric, the impregnation temperature is room temperature, and after immersion, it is dried at 105°C for 2 hours to obtain Reinforced fabrics with interfacial compatibilization and flame retardant pretreatment;

[0031] (2) The ramie fabric treated above is impregnated with gallic acid epoxy resin and itaconic acid epoxy resin complex by melting method. In the resin formula, 80 parts of gallic acid epoxy resin, 20 parts of itaconic acid epoxy resin, 45 parts of rosin-based anhydride curing agent, and 3 parts of quaternary phosphonium salt and boron trifluoride ethyl complex are selected as latent accelerator; Temperature 80±5℃. Main performance parameters of prepreg, resin content 50%, pr...

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Abstract

The invention belongs to the technical field of composite materials and preparation thereof, and relates to a biomass composite material and a preparation method thereof. The biomass composite material is prepared from bio-based epoxy resin reinforced by plant fiber fabric, wherein on or two of continuous-filament woven fabric of ramie, flax, jute, China-hemp, kenaf or sisal hemp can be adopted as the plant fiber fabric; the fabric is twill, plain or satin fabric, or gridding cloth, and has the surface density of 80-300g / m<2>; the source of biomass epoxy resin is rosin, itaconic acid, gallic acid or epoxy soybean oil; an abietic anhydride-based curing agent is used as the resin; one or two of organic urea derivatives, thiourea derivatives, quaternary ammonium salts, quaternary ammonium phosphate, imidazole salts and acetylacetone metal complexes are used as accelerants; the glass transition temperature of the composite material is adjustable in a range of 80-160 DEG C. A prepreg is prepared by using a solution method or a hot melting method; the prepreg is good in viscosity and long in shelf life, and can be cured at high temperature or medium temperature.

Description

technical field [0001] The invention belongs to the technical field of composite materials and their preparation, and relates to a biomass composite material and a preparation method thereof. Background technique [0002] Resin-based composite materials have a series of advantages such as high specific strength, high specific modulus, and designable mechanical properties. They are the most ideal materials for lightweight and efficient structural design, and they occupy an important position in the field of materials. At present, resin-based composite materials generally use carbon fiber fabrics, aramid fiber fabrics, glass fiber fabrics and ultra-high molecular weight polyethylene fabrics as reinforcement materials, and the resin matrix is ​​epoxy resin, unsaturated polyester, phenolic resin, polyimide and Bismaleimide, etc. The above-mentioned materials all have one thing in common that they are all man-made materials or derived from petroleum, so the problems of waste, re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L1/02C08J5/24C08J5/06
CPCC08L63/00C08J5/06C08J5/24C08J2301/02C08J2363/00C08J2401/02C08J2463/00C08L1/02C08L2201/02C08L2201/06C08L2201/08C08L2205/16
Inventor 益小苏张旭锋乌云其其格仝建峰
Owner ACC BEIJING SCI & TECH CO LTD
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