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Flame-retardant wood-plastic material and preparation method thereof

A technology of wood-plastic materials and raw materials, applied in the field of wood-plastic materials, can solve problems such as large consumption of raw materials, high loss of melamine, difficulty in solvent recovery, etc., and achieve the effect of improving flame retardancy, good flame retardancy, and good waterproof

Inactive Publication Date: 2016-10-12
刘莹莹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The melamine-formaldehyde resin coating process is usually to prepare a melamine-formaldehyde resin prepolymer first, and then the prepolymer is polymerized in situ on the surface of ammonium polyphosphate to form a melamine-formaldehyde resin, but the melamine is lost during the reaction process and the solvent recovery is difficult. The consumption of raw materials is large, and there are also environmental pollution problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A flame-retardant wood-plastic material, which is composed of the following raw materials in parts by weight:

[0014] Pentaerythritol 1, high-density polyethylene 170, ammonium polyphosphate 10, melamine 2, tetrabutyl titanate 6, methyltriethoxysilane 30, dimethyldiethoxysilane 27, acetylacetone 0.3, straw powder 120 , tributyl citrate 6, zinc borate hydrate 3, ethylene bis stearamide 0.2.

[0015] A preparation method of said flame-retardant wood-plastic material, comprising the following steps:

[0016] (1) Add ammonium polyphosphate into an oil bath at 250°C, heat it for 30 minutes, add melamine, seal and stir at the above temperature for 100 minutes, discharge and cool, add 10% methanol twice the weight of the mixture In the aqueous solution, put it into a constant temperature water bath at 76°C, stir at 400 rpm for 100 minutes, and discharge the material to obtain an ammonium polyphosphate modified resin alcohol solution;

[0017] (2) Mix methyltriethoxysilane a...

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Abstract

The invention discloses a flame-retardant wood-plastic material, which is composed of the following raw materials in parts by weight: pentaerythritol 1-2, high-density polyethylene 170-200, ammonium polyphosphate 10-16, melamine 2-3, titanium Tetrabutyl acetate 6‑9, methyl triethoxysilane 30‑40, dimethyldiethoxysilane 27‑30, acetylacetone 0.3‑0.4, straw powder 120‑130, tributyl citrate 6‑ 8. Zinc borate hydrate 3‑4, ethylene bisstearamide 0.2‑1. The invention prepares silicon resin containing titanium, and mixes and modifies it with ammonium polyphosphate-coated melamine formaldehyde resin, so that the finished product not only has good flame retardancy, but also has good waterproof and heat resistance.

Description

technical field [0001] The invention relates to the technical field of wood-plastic materials, in particular to a flame-retardant wood-plastic material and a preparation method thereof. Background technique [0002] Thermoplastic wood-plastic composites are modified thermoplastic materials that are filled and reinforced with wood fibers or plant fibers, and made by hot-compression compounding, melt extrusion and other processing methods. In recent years, with the depletion of global resources, social awareness of environmental protection has been increasing, and higher requirements have been put forward for the application of wood and petrochemical products. In this context, wood-plastic composite materials can not only take advantage of the advantages of each component in the material, overcome the limitations of use caused by low wood strength, large variability, and low elastic modulus of organic materials, but also make full use of it. Waste wood and plastic, reduce env...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L97/02C08L83/04C08K13/06C08K9/04C08K3/32C08K3/38C08K5/053
CPCC08L23/06C08L2201/02C08L2201/08C08L2205/035C08L2207/062C08L97/02C08L83/04C08K13/06C08K9/08C08K2003/323C08K2003/387C08K5/053
Inventor 刘莹莹
Owner 刘莹莹