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High-performance wood-plastic composite wall board and production method thereof

A wood-plastic composite, high-performance technology, applied in the field of wood-plastic composite materials, can solve the problems of wood-plastic products such as water resistance, mechanical strength and physical properties are not ideal, and resin physical properties are not high, so as to enhance mechanical properties and eliminate environmental pollution. , cost-saving effect

Inactive Publication Date: 2016-12-07
ANHUI GUOFENG WOOD PLASTIC COMPOSITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of molecular structure, polyethylene hardly contains branched chains, and its main chain is a repeated C-C flexible molecular segment, resulting in low physical properties of the resin, and the water resistance and mechanical strength of the wood-plastic products produced. Physical properties are not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-performance wood-plastic composite wallboard is composed of the following components by weight: 45-55 parts of fiber powder, 5-10 parts of ceramic fiber, 30-40 parts of HDPE plastic, 2-4 parts of coupling agent, and antioxidant 0.2-0.4 parts, 2-3 parts of toughening agent, 1-3 parts of lubricant.

[0027] Furthermore, the fiber powder is a 60-mesh particle obtained by crushing, grinding and sieving wheat straw, and its moisture content is 3-5%.

[0028] Further, the melt index of the PE plastic is 0.2-0.4g / 10min.

[0029] Further, the coupling agent is KH550 silane coupling agent.

[0030] Further, the toughening agent is polyethylene oxide.

[0031] Further, the lubricant is compound lubricant Opka-100 (Honeywell, USA).

[0032] Further, the antioxidant of the antioxidant is antioxidant 1010, antioxidant 1076, anti-aging agent DNP and light stabilizer GW-480 as a composite anti-aging agent; the mass ratio of each component is: 0.5:0.5:1.

Embodiment 2 Embodiment 1

[0033] Embodiment 2 Embodiment 1 Wood-plastic composite material preparation method

[0034] Step 1: Collect waste wheat straw, wash it, dry it, put it into a mill and grind it into wheat straw fiber, and get 60-mesh particles after screening, and then dry it in an oven at 110°C for 24 hours , so that the average moisture content of wheat straw fiber remains at 10%;

[0035] Step 2: Soak the wheat straw fibers in 2.5% NaOH solution for 48 hours, then rinse until the pH is neutral, and dry the modified wheat straw fibers in an oven at 110°C, so that the average The moisture content is kept at 5%;

[0036] Step 3: Make KH550 silane coupling agent and white oil into a solution according to the volume ratio of 1:5, put the dried wheat straw powder into a high-speed mixing mixer, and spray the coupling agent solution while stirring until the coupling agent The solution fully and uniformly infiltrates the wheat straw powder, takes it out, and dries at 105°C for 1-5min.

[0037] S...

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Abstract

The invention discloses a high-performance wood-plastic composite wall board. The high-performance wood-plastic composite wall board is characterized by being produced by using the following components in parts by weight: 45 to 55 parts of fiber powder, 5 to 10 parts of ceramic fiber, 30 to 40 parts of HDPE (High-Density Polyethylene) plastic, 2 to 4 parts of coupling agent, 0.2 to 0.4 part of antioxidant, 2 to 3 parts of toughening agent and 1 to 3 parts of lubricating agent. A preparation method comprises the following steps: firstly, preparing a KH550 silane coupling agent and white oil into a solution according to a volume ratio of 1:5, mixing the solution with the fiber powder to be uniform, and then drying; secondly, putting the pretreated fiber powder, PE plastic, the antioxidant and the toughening agent into a high-speed mixer, mixing for 10 to 15 minutes and then cooling; thirdly, granulating a mixed and cooled wood-plastic dry mixing material by a granulator; fourthly, adding the lubricating agent, mixing for 3 to 6 minutes, and extruding by an extruder to obtain the wood-plastic composite material. By using the process, the water-absorbing capacity of the wood-plastic wall board can be reduced, and weather fastness of the wood-plastic wall board is enhanced.

Description

technical field [0001] The invention relates to the field of wood-plastic composite materials, in particular to an HDPE wood-plastic composite wallboard with low water absorption and high mechanical strength and a preparation method thereof. Background technique [0002] Wood plastic composite (WPC for short) is a new type of environmentally friendly material made of various waste plant fibers and recycled plastics. The base materials in commonly used wood-plastic composite formulations mainly include polyethylene (PE), polypropylene (PP) and polyvinyl chloride (PVC). Due to the processing characteristics of polyethylene, nearly 70% of wood-plastic composite materials are polyethylene base composite material. From the perspective of molecular structure, polyethylene hardly contains branched chains, and its main chain is a repeated C-C flexible molecular segment, resulting in low physical properties of the resin, and the water resistance and mechanical strength of the wood-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08L71/02C08K13/04C08K7/04C08K5/134C08K5/544B29C47/92B29C48/92
CPCC08L97/02B29C48/92B29C2948/92704C08K2201/014C08L2205/035C08L2205/16C08L2207/062C08L23/06C08L71/02C08K13/04C08K7/04C08K5/1345C08K5/544
Inventor 方晓钟肖磊马岩姚红焱高威威李丰奎贾红滢
Owner ANHUI GUOFENG WOOD PLASTIC COMPOSITE
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