Waterproof and moisture-proof enhanced type high-density fiberboard and preparation method thereof

A high-density fiberboard, enhanced technology, applied in the direction of flat products, manufacturing tools, other household appliances, etc., can solve the problems of poor water resistance, poor adhesive bonding, etc., to reduce production costs, strong water resistance, simple and reasonable formula Effect

Inactive Publication Date: 2015-12-23
ANHUI BAIYI FURNITURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of poor water resistance and poor adhesive bonding of existing density boards made of straw fibers, the present invention provides a waterproof and moisture-proof reinforced high-density fiberboard and a preparation method thereof

Method used

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Embodiment Construction

[0015] specific implementation plan

[0016] The present invention will be described in detail below through specific examples.

[0017] A waterproof and moisture-proof reinforced high-density fiberboard, prepared from the following raw materials in parts by weight (kg): 42 crop straws, 30 wood scraps, an appropriate amount of sodium hydroxide with a concentration of 2%, silane coupling agent kh4502, and a concentration of 95 % ethanol 66, water-based polyurethane adhesive 7, emulsified paraffin wax 1.5, water amount, OP-100.5, potassium persulfate 0.015, polypropylene fiber 3;

[0018] A waterproof and moisture-proof enhanced high-density fiberboard according to the present invention is made by the following specific steps:

[0019] (1) Wash the crop straws and put them in an oven to dry until the water content is 20%-30%, cut them into 3-4cm pieces after cooling off, and then add 3 times the amount of 2% hydrogen Sodium, stirred at a speed of 60 rpm for 2 hours, filtered, ...

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Abstract

The invention discloses a waterproof and moisture-proof enhanced type high-density fiberboard. The waterproof and moisture-proof enhanced type high-density fiberboard is characterized by being prepared from, by weight, 42-45 parts of crop straw, 30-32 parts of wood scraps, a proper amount of sodium hydroxide with the concentration of 2%, 2-2.5 parts of silane coupling agents kh450, 66-70 parts of ethyl alcohol with the concentration of 95%, 7-8 parts of waterborne polyurethane adhesives, 1.5-2 parts of emulsified paraffin, a proper amount of water, 0.5-0.6 part of OP-10, 0.015-0.02 part of potassium peroxydisulfate and 3-4 parts of polypropylene fibers. A large number of crop straw and wood scraps replace wood, so that a large number of forest resources are saved and the production cost is reduced. The fibers are processed through the polypropylene fibers and the like, in the hot pressing process, the polypropylene fibers are molten at high temperature and soaked among the fibers, the waterproofness of products is enhanced by cooperation of the polypropylene fibers, the waterborne polyurethane adhesives and other components, the tenacity is good and particles are fine and smooth.

Description

technical field [0001] The invention relates to the technical field of deep processing of wood materials, in particular to a waterproof and moisture-proof reinforced high-density fiberboard and a preparation method thereof. Background technique [0002] In recent years, my country's medium and high density fiberboard industry has developed very rapidly, and the original hard fiberboard has been gradually replaced by medium and high density fiberboard. MDF enterprises are very dependent on wood raw materials. The cost of wood raw materials accounts for about 45% of the production cost. The shortage of wood raw materials has seriously affected the production of fiberboards. As far as the production requirements of medium and high density fiberboard are concerned, it is more than 10 years, the regeneration cycle of bamboo is also 3-5 years, and the regeneration cycle of crop straw is 1 year or less. From the perspective of resource utilization efficiency, crops Straw is the mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/04B27N1/00B27N1/02B27N3/10
Inventor 张友吉
Owner ANHUI BAIYI FURNITURE
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