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Method preparing plastic wood particles through waste resin

A technology of waste resin and plastic wood, which is applied in the field of composite materials, can solve the problems of flame retardancy, aging, and easy breeding of bacteria in plastic wood materials, achieve good economic benefits and social value, improve flame retardancy, and increase application potential Effect

Inactive Publication Date: 2019-10-22
江苏绿能塑木科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

25-35 parts of thermoplastics, 15-40 parts of non-metallic material particles of waste circuit boards, 30-60 parts of wood flour, 2-4 parts of graft compatibilizer, 1-2 parts of lubricant, 0.3-0.6 parts of coupling agent Parts are measured, mixed and masticated to make wood-plastic particles that are easy to form, and then the wood-plastic particles are sent to the extruder for extrusion molding, and then cut and shaped after cooling and shaping. This invention can solve the problem of waste circuit board non-metallic materials. It has the advantages of high product strength and simple processing technology, but it still cannot solve the problems of flame retardancy, aging, and easy breeding of bacteria in wood-plastic materials.

Method used

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  • Method preparing plastic wood particles through waste resin
  • Method preparing plastic wood particles through waste resin
  • Method preparing plastic wood particles through waste resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] See figure 1 , a kind of method that utilizes waste resin to prepare wood-plastic particle, first, reclaim mixed waste resin material from waste circuit board:

[0034] Step 1: Disassemble the waste circuit board into the circuit board using a hot air dismantling machine. This step is to remove the electronic components on the circuit board and remove the solder;

[0035] The second step: the circuit board will be crushed by a hammer crusher, which has a simple structure, a large crushing ratio, and high crushing efficiency;

[0036] Step 3: Use an electric vibrating sieve to screen out particles with a particle size below 0.15mm, and repeat the second step for the remaining particles;

[0037] The fourth step: use a high-voltage electrostatic separator to separate the particles obtained in the third step into metal materials and mixed waste resin materials.

[0038] Preparation of wood plastic particles by mixing waste resin materials:

[0039] S1: Raw material prepar...

Embodiment 2

[0058] See figure 1 , a kind of method that utilizes waste resin to prepare wood-plastic particle, first, reclaim mixed waste resin material from waste circuit board:

[0059] Step 1: Disassemble the waste circuit board into the circuit board using a hot air dismantling machine. This step is to remove the electronic components on the circuit board and remove the solder;

[0060] The second step: the circuit board will be crushed by a hammer crusher, which has a simple structure, a large crushing ratio, and high crushing efficiency;

[0061] Step 3: Use an electric vibrating sieve to screen out particles with a particle size below 0.15mm, and repeat the second step for the remaining particles;

[0062] The fourth step: use a high-voltage electrostatic separator to separate the particles obtained in the third step into metal materials and mixed waste resin materials.

[0063] Preparation of wood plastic particles by mixing waste resin materials:

[0064] S1: Raw material prep...

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Abstract

The invention discloses a method for preparing plastic wood particles through waste resin. The method comprises the following steps: using mixed waste resin obtained by recycling waste circuit boards,ammonium polyphosphate and zinc borate as raw materials, mixing the raw materials for 20 to 25min at the rotate speed of 800 to 1000rpm / min, drying the raw materials in 85 to 95 DEG C environment till the water content of a mixture is lower than 5wt percent after mixing, and then performing extrusion granulation through a single screw extruder. The method has the advantages that the ammonium polyphosphate is added in an integral formula, an acid source, a gas source and a carbon source (cellulose inside a wood material) of an intumescent flame retardant system are comprised at the same time,the properties of fire prevention and smoke suppression are added through an intumescent flame retardant principle, and the service performance is further improved; the added zinc borate can not onlyserve as a synergist to further improve the flame retardant effect of the ammonium polyphosphate, but also enhance the antimicrobial property, the overall technology is simple, the cost is low, the product performance is stable, and the plastic wood particles have good economic benefit and social value.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for preparing wood-plastic particles by using waste resin. Background technique [0002] The world's printed circuit board is the basic part of the electronics industry. From computers, mobile phones, televisions to electronic toys, almost all electronic products have circuit boards. The waste circuit board metal components are separated and recycled. Nearly 50-80% of waste resin waste has become a difficult problem for electronic waste disposal. The substrate of waste circuit board is made of epoxy resin, phenolic resin, polytetrafluoroethylene as adhesive, and paper or glass fiber as reinforcement material to form a composite material board, and copper foil is pressed on the unit or both sides of the board. Since the recycling of non-metallic materials is difficult, the recycling of circuit boards is mainly made of metal materials, and a large amount of no...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L23/06C08L97/02C08K13/02C08K3/32C08K3/38
CPCC08K2003/323C08K2003/387C08L23/06C08L63/00C08L2201/02C08L2205/025C08L2205/03C08L2205/16C08L2207/20C08L97/02C08K13/02C08K3/32C08K3/38
Inventor 陈旭东孙斌钱春英
Owner 江苏绿能塑木科技有限公司
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