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Wood fiber modified enhanced unsaturated polyester composite and preparation method thereof

A polyester composite material and wood fiber technology, applied in the field of composite materials, can solve the problems of insufficient mechanical properties, impact properties and flame retardant properties, and achieve the effects of good dispersion, high compatibility and high interface bonding strength.

Inactive Publication Date: 2017-06-27
JMINDUSTRIES GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are insufficient mechanical properties, impact properties, and flame retardant properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] A wood fiber modified and reinforced unsaturated polyester composite material prepared from the following parts by weight (g) of raw materials:

[0021] Vinyl isocyanate 40-50, poplar wood powder 10-20, cobalt octoate 1-3, methyl ethyl ketone peroxide 2-4, KH550 3-6, ammonium polyphosphate 6-9, melamine 4-7, expandable graphite 3-5 , Coated red phosphorus 2-4, acrylic acid solution, ethanol, ethylene glycol, distilled water appropriate amount.

[0022] A wood fiber modified and reinforced unsaturated polyester composite material, which is characterized in that it is carried out according to the following steps:

[0023] a. Grind and pulverize poplar wood powder. After passing through a 40-mesh sieve, place it in a blast drying oven at 100-120°C for 3 hours, add 1:20 to acrylic acid solution, after soaking for 2 hours, filter, and then add 1:15 Soaked in KH550 / ethanol solution for 3 hours, filtered, washed with water 3 times, and dried in an oven at 80-90℃ for 4 hours to obtai...

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PUM

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Abstract

The invention discloses a wood fiber modified enhanced unsaturated polyester composite and a preparation process of the wood fiber modified enhanced unsaturated polyester composite. The wood fiber modified enhanced unsaturated polyester composite is characterized by taking vinyl isocyanate, poplar powder, cobalt octoate, methyl ethyl ketone peroxide, KH550, ammonium polyphosphate, melamine, expansible graphite, encapsulated red phosphorus, and a crylic acid solution as raw materials. The poplar powder is soaked in the crylic acid solution and the KH550 / ethanol solution, the dispersity of a modified wood fiber in a matrix is high, the compatibility of the modified wood fiber is high, and the interface bonding performance with the matrix is improved; and the tensile strength, the bending strength and the impact toughness of the composite are improved, and the mechanical properties and the heat resistance of the composite are improved. After being activated and modified by melamine, ammonium polyphosphate is mixed and ball-milled with expansible graphite and encapsulated red phosphorus, the materials mutually produce a synergistic effect, and a composite flame retardant is obtained and used for improving the flame retardant property of the composite.

Description

Technical field [0001] The invention relates to the field of composite materials, in particular to a wood fiber modified and reinforced unsaturated polyester composite material, and a preparation process thereof. Background technique [0002] Wood-plastic composite material uses agricultural waste as the main raw material, reduces the environmental pollution caused by the incineration of plant straw and waste plastic, has the advantages of environmental friendliness and sustainability, and is widely used in construction materials, furniture, packaging and transportation, etc. industry. The research and application of wood-plastic composite materials are of great significance to the search for alternative wood materials. [0003] In his master's degree thesis "Preparation and Performance Study of Carbon Fiber Reinforced Wood Fiber / Polyethylene Composites", Du Feng used chopped carbon fibers and continuous long carbon fibers to replace some of the wood fibers in wood-plastic composi...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L97/02C08K13/06C08K9/10C08K3/02C08K7/24C08K9/04C08K3/32C08H8/00
CPCC08H8/00C08L67/06C08L2201/02C08L2201/08C08L2205/16C08L97/02C08K13/06C08K9/10C08K2003/026C08K7/24C08K9/04C08K2003/323
Inventor 周洪杰周楠孙兴平于洋周煜
Owner JMINDUSTRIES GRP
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