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High strength sand-plastic composite material

A technology of composite materials and reinforced materials, which is applied in the field of composite materials, can solve problems such as limited application range and poor mechanical strength, and achieve the effects of simple preparation process, high mechanical strength and high use value

Active Publication Date: 2019-02-12
BEIJING RECHSAND SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defect that the poor mechanical strength of the wood-plastic composite material in the prior art limits the application range, and then provide a high-strength sand-plastic composite material. The specific technical solution is as follows:

Method used

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  • High strength sand-plastic composite material
  • High strength sand-plastic composite material

Examples

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Effect test

Embodiment 1

[0029] The preparation method of the sand-plastic composite material provided in this example is as follows: 60 g of 40-mesh silica sand, 0.3 g of silane coupling agent, 6 g of water glass and 0.8 g of benzoic acid are mixed and stirred evenly to make component A; Mix ethylene and 0.5g of epoxy resin AB glue to make component B; add component B and 25g of polyaramid fibers into component A while stirring at 180°C, stir well and then mold it.

Embodiment 2

[0031] The preparation method of the sand-plastic composite material provided in this example is as follows: mix 75 g of 60-mesh silica sand and 1.2 g of silane coupling agent and stir them evenly to make component A; mix 30 g of polypropylene and 0.5 g of resorcinol Mix 15g of epoxy resin adhesive to make component B; at 220°C, add component B and 7g of glass fiber into component A while stirring, and then cool and granulate after stirring.

Embodiment 3

[0033] The preparation method of the sand-plastic composite material provided in this example is as follows: mix 90 g of 100-mesh silica sand and 0.1 g of silane coupling agent and stir evenly to make component A; mix 10 g of polyvinyl chloride and organic silicon-modified diphenol Mix 7.5g of propane epoxy resin adhesive to make component B; at 220°C, add component B and 18g of graphite fiber into component A while stirring, stir well and then cool to granulate.

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Abstract

The invention relates to the field of composite materials, and in particular provides a high strength sand-plastic composite material. Low-cost silica sand is used as a main material for the first time; by means of a synergistic action of a first adhesive, a second adhesive, a reinforcing material and a coupling agent, all components of the composite material are effectively enabled to be well compatible; furthermore, the novel composite material has excellent mechanical properties, and the bending strength, impact strength and compressive strength of the composite material are obviously superior to the existing wood-plastic composite materials. The main material silica sand of the sand-plastic composite material provided by the invention has excellent environmental protection performance,and other components are common commercially available materials; the preparation cost is low, and the process is simple. The material can be molded in multiple ways so as to be suitable for being applied in multiple fields.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a high-strength sand-plastic composite material. Background technique [0002] In recent years, wood-plastic composites made of polyethylene, polypropylene, and polyvinyl chloride instead of traditional resin adhesives, mixed with waste plant fibers such as wood powder, rice husk, and straw, have attracted much attention. The material has both the performance and characteristics of wood and plastic, and has good environmental protection performance, and can be used in industries such as building materials, furniture, decoration and logistics packaging. [0003] However, wood-plastic composites have some unavoidable defects, such as low strength, poor impact resistance, poor water resistance, flammability, etc., which limit the application of wood-plastic composites. Although technical personnel in this field have made improvements to wood-plastic composites to addres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/32
CPCC04B26/32C04B24/2682C04B24/42C04B14/386C04B14/06
Inventor 秦升益
Owner BEIJING RECHSAND SCI & TECH GRP
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