Manufacturing method of hollow microsphere wood plastic composite board

A manufacturing method and composite board technology, which is applied in the manufacture of wood-plastic composite boards and hollow microsphere wood-plastic composite boards, and can solve problems such as lack of sealing properties and inability to form a vacuum environment

Inactive Publication Date: 2017-05-24
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wood is a kind of porous material, it does not have sealing properties and cannot form a vacuum environment, and it is difficult for wood-plastic composite materials made of wood to have superior

Method used

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  • Manufacturing method of hollow microsphere wood plastic composite board
  • Manufacturing method of hollow microsphere wood plastic composite board
  • Manufacturing method of hollow microsphere wood plastic composite board

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0030] Specific Embodiment 1: Combining figure 1 To illustrate this embodiment, a method for manufacturing a hollow microsphere wood-plastic composite board described in this embodiment includes the following steps:

[0031] S1. Material preparation: Process wood or straw by one or more methods of planing, chipping, rolling, sawing and screening to obtain woody raw materials;

[0032] S2. Raw material pretreatment: carry out drying treatment on the woody raw material, and dry the moisture content of the woody raw material to below 5%;

[0033] S3. Preparing plastic flakes: processing thermoplastics into thermoplastic flakes;

[0034] S4. Roller mixing: placing thermoplastic flakes, hollow microspheres and the woody raw material in a roller and mixing them evenly to obtain a mixture of the three;

[0035] S5, Laying the vacuum tube: laying the vacuum tube in the mould;

[0036] S6, layered paving slab: divide the mixture into two parts, pave one of them on the directional pa...

specific Embodiment approach 2

[0040] Specific embodiment 2: In S5, the liquid coupling agent is also applied to the mixture of thermoplastic flakes, hollow microspheres and wood raw materials in the process of drum mixing by spraying method, and the obtained mixture is a compound with coupling agent added. Mixture; Others are identical with specific embodiment 1.

[0041] The technical effect of this embodiment is that the coupling agent can be evenly attached to the three materials by using the spraying method, and the mixing by the roller is beneficial to obtain a more evenly dispersed material, which is effective in the subsequent paving and pressing into boards. It ensures the uniform mechanical properties of the board and the quality of the board.

specific Embodiment approach 3

[0042] Embodiment 3: Combining figure 1 , figure 2 and image 3 Describe this embodiment, the manufacturing method of a hollow microsphere wood-plastic composite board described in this embodiment, the specifications of the wood raw material are: length 20~200mm, width 2~20mm, thickness 0.1~2mm; the thermoplastic The specifications of the flakes are: length 60-100mm, width 15-20mm, thickness 0.05-0.2mm; the density of the hollow microspheres is 0.05-0.15g / cm 3 , the particle size is 10-150 microns; the others are the same as in Embodiment 1.

[0043] The technical effect of this embodiment is: the specification of the material determines the uniformity of the material during the mixing process, and is conducive to the chemical reaction between the three materials, thereby forming a strong combination, which can promote the quality of the board.

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Abstract

The invention discloses a hollow microsphere wood plastic composite board and a manufacturing method of the hollow microsphere wood plastic composite board. In order to achieve the aims of manufacturing of a high-strength sound suction heat isolation wood plastic composite board and solving the problem that a vacuum environment cannot be formed in the wood material, the manufacturing method of the hollow microsphere wood plastic composite board is provided. The method comprises steps of material preparation, raw material pretreatment, plastic sheet preparation, roller mixing, vacuum tube paving, slab layered paving, hot pressing and cold pressing and later-period machining. The method has the beneficial effects that the sealed vacuum environment is formed in the wood plastic composite board, and therefore the wood plastic composite board has the part of characteristics of a vacuum material, the temperature and sound isolation property of the wood plastic composite board can be improved, the manufactured hollow microsphere wood plastic composite board has the effects of low density, and temperature and sound isolation, the board has the low average density and high surface density, and it is ensured that the board is small in weight, high in strength and good in surface machining property.

Description

technical field [0001] The invention belongs to the field of composite materials, and relates to a method for manufacturing a wood-plastic composite board, in particular to a method for manufacturing a wood-plastic composite board with hollow microspheres. Background technique [0002] Wood-plastic composites are one of the fastest growing new polymer composites in the field of composites. Extrusion, injection and hot pressing are the three main methods of producing wood-plastic composites, but the extrusion and injection methods limit the size of their products, so hot pressing is the optimal method for producing large-format wood-plastic composites. Wood-plastic composite panels are used in the construction industry and furniture manufacturing industry. The wood-plastic composite panels with superior performance can replace natural wood to manufacture wood-structured buildings, interior decoration parts, desks, cabinet furniture, etc. [0003] The main raw materials of wo...

Claims

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Application Information

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IPC IPC(8): B29D7/00
CPCB29D7/00
Inventor 漆楚生赵博识于志明张扬母军张峰储德淼杜兰星黄思琪
Owner BEIJING FORESTRY UNIVERSITY
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