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Filling powder used for plywood

A technology of filling powder and plywood, which is applied in the field of filling powder, can solve the problems of affecting the use effect of plywood, the moisture content of plywood exceeds the standard, and the board is prone to mold, so as to avoid the phenomenon of glue shortage, good fluidity, and reduce the effect of glue opening and foaming

Inactive Publication Date: 2012-03-21
李树青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the fillers used in the production of plywood generally use industrial flour, which is expensive and used in large quantities, and the board is prone to mold (the flour contains protein and starch, which are easy to absorb water, making the moisture content of the plywood exceed the standard, causing mildew), thus affecting The use effect of plywood

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 45kg of heavy calcium carbonate, 30kg of tapioca starch, 3kg of gluten powder, and 5kg of wood flour (80 mesh). (The above raw materials are available in the market)

[0025] Put all the raw materials into the mixer, stir quickly, mix, pack, and get the finished product.

Embodiment 2

[0027] Weigh 55kg of heavy calcium carbonate, 35kg of potato starch, 5kg of gluten powder, and 10kg of wood flour (200 mesh).

[0028] Put all the raw materials into the mixer, stir quickly, mix, pack, and get the finished product.

Embodiment 3

[0030] Weigh 50kg of heavy calcium carbonate, 32kg of wheat starch, 5kg of gluten powder, and 8kg of wood flour (160 mesh).

[0031] Put all the raw materials into the mixer, stir quickly, mix, pack, and get the finished product.

[0032] Application method and requirements of special filling powder for plywood:

[0033] 1: The special filling powder for plywood has good initial viscosity and can be used alone instead of industrial flour in plywood production. In the production of building templates, the special filling powder for plywood can completely replace the industrial flour.

[0034] 2: The amount of filler powder used for plywood should be determined according to the concentration (solid content) of the resin glue. If the glue concentration is high, use less, and if the glue concentration is small, you can add more. The general usage is liquid urea-formaldehyde resin glue. 8 to 25% of the weight.

[0035] 3: When using special filler powder for plywood, the filler ...

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Abstract

The invention provides a filling powder used for plywood, which uses a technical scheme that: 45%-55% of heavy calcium carbonate, 30%-35% of pregelatinized starch, 3%-5% of cereal element powder and 5%-10% of wood powder are placed in a stirrer according to proportion, stirred and mixed to produce the filling powder. The filling powder used for plywood is a green environmental protection functional material with no toxicity, no flavour, fire resistance, deterioration resistance and mildew resistance. After mixing with a resin adhesive, the filling powder has the advantages of good cohesiveness, suspensibility, dispersibility, fluidity, adsorptivity and thixotropy. The solid content of the filling powder is higher than that of industrial flour, the price of the filling powder is lower than that of the industrial flour. The filling powder used for plywood is a mixture which has the advantages of simple production process, less investment equipment, convenient operation and large production capacity.

Description

technical field [0001] The invention relates to a filler powder used in the production of plywood. Background technique [0002] At present, the fillers used in the production of plywood generally use industrial flour, which is expensive and used in large quantities, and the board is prone to mold (the flour contains protein and starch, which are easy to absorb water, making the moisture content of the plywood exceed the standard, causing mildew), thus affecting The use of plywood. Contents of the invention [0003] The purpose of the present invention is to provide a special filling powder for plywood, which has a large specific surface area, many voids, good fluidity, dispersibility, moisture retention and adsorption, good viscosity, no deterioration and mildew, and low price. sexual material. [0004] The technical scheme that the present invention takes is: [0005] Raw material composition of the present invention (by weight percentage): [0006] Heavy calcium car...

Claims

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Application Information

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IPC IPC(8): C09J11/04C09J11/08C09J161/24
Inventor 李树青
Owner 李树青
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