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Adhesive specially used for bamboo plywood

A technology of bamboo plywood and glue, applied in the field of plywood, can solve the problems of easy cracking, water resistance, poor adhesiveness of glue, etc., achieve high bonding strength, good dispersion, and reduce production costs

Inactive Publication Date: 2017-09-19
贵港市鑫宏木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special viscose adhesive for bamboo plywood, so as to overcome the disadvantages of poor viscose adhesiveness, easy cracking or poor water resistance.

Method used

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  • Adhesive specially used for bamboo plywood

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A special adhesive for bamboo plywood, mainly made of the following raw materials in parts by weight: 17 parts of vegetable glue, 11 parts of borax, 8 parts of paraben, 12 parts of urea, 2 parts of formaldehyde, and melamine rubber powder 3 parts, 11 parts of lignin, 8 parts of zinc naphthenate, 7 parts of dodecenyl dicyclohexylamine, 9 parts of ethyl acetate, 11 parts of acid anhydride, 4 parts of polyvinyl alcohol and 6 parts of sodium pyrophosphate.

[0016] The vegetable gum is arrowroot starch.

[0017] A kind of preparation method of the adhesive glue special for bamboo plywood, comprises the following steps:

[0018] (1) Mix formaldehyde and polyvinyl alcohol, adjust the pH value to 7.5, then add urea, raise the temperature to 53°C for 30 minutes, then raise the temperature to 90°C, add melamine rubber powder and react for 50 minutes to obtain slurry I;

[0019] (2) The concentration of the configuration is 23 degrees Baume, the vegetable glue slurry with a pH v...

Embodiment 2

[0021] A special adhesive for bamboo plywood, mainly made of the following raw materials in parts by weight: 11 parts of plant glue, 14 parts of borax, 6 parts of paraben, 16 parts of urea, 3 parts of formaldehyde, and melamine rubber powder 4 parts, 8 parts of lignin, 12 parts of zinc naphthenate, 4 parts of dodecenyl dicyclohexylamine, 5 parts of ethyl acetate, 7 parts of acid anhydride, 7 parts of polyvinyl alcohol and 1 part of sodium pyrophosphate.

[0022] The vegetable gum is arrowroot starch.

[0023] A kind of preparation method of the adhesive glue special for bamboo plywood, comprises the following steps:

[0024] (1) Mix formaldehyde and polyvinyl alcohol, adjust the pH value to 7, then add urea, raise the temperature to 55°C for 20 minutes, then raise the temperature to 100°C, add melamine rubber powder and react for 30 minutes to obtain slurry I;

[0025] (2) The concentration of the configuration is 20 degrees Baume, the vegetable glue slurry with a pH value of...

Embodiment 3

[0027] A special adhesive for bamboo plywood, mainly made of the following raw materials in parts by weight: 22 parts of plant glue, 6 parts of borax, 11 parts of paraben, 8 parts of urea, 1 part of formaldehyde, and melamine rubber powder 2 parts, 18 parts of lignin, 4 parts of zinc naphthenate, 9 parts of dodecenyl dicyclohexylamine, 14 parts of ethyl acetate, 17 parts of acid anhydride, 3 parts of polyvinyl alcohol and 9 parts of sodium pyrophosphate.

[0028] The vegetable gum is arrowroot starch.

[0029] A kind of preparation method of the adhesive glue special for bamboo plywood, comprises the following steps:

[0030] (1) Mix formaldehyde and polyvinyl alcohol, adjust the pH value to 7.5, then add urea, raise the temperature to 50°C for 40 minutes, then raise the temperature to 85°C, add melamine rubber powder and react for 60 minutes to obtain slurry I;

[0031] (2) The configuration concentration is 25 degrees Baume, and the vegetable glue slurry with a pH value of ...

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PUM

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Abstract

The invention discloses a special adhesive for bamboo plywood, which is mainly made of the following raw materials: vegetable glue, borax, paraben, urea, formaldehyde, melamine rubber powder, lignin, zinc naphthenate, dodecene dicyclohexylamine, ethyl acetate, acid anhydride, polyvinyl alcohol and sodium pyrophosphate. The adhesive glue special for bamboo plywood of the present invention has the advantages of strong adhesion, good modeling and dispersibility, and reduces the consumption of formaldehyde, and the free formaldehyde emission of the synthesized adhesive glue product reaches the EO grade standard (≤ 0.5mg / L), reducing the emission of formaldehyde, no harm to the human body, belongs to the green environmental protection adhesive. High bonding strength and strong water resistance. The method for preparing the adhesive is simple, does not require very high equipment, and reduces production costs.

Description

technical field [0001] The invention relates to the field of plywood, in particular to a special adhesive for bamboo plywood. Background technique [0002] Bamboo plywood is a building material made of moso bamboo as the main structure and filling material, which is formed into blanks by high pressure. Bamboo has high strength, good toughness, rigidity and wear resistance, and can be used as an excellent engineering structure material. The bamboo plywood template made of bamboo has good bending strength and rigidity, good overall structure, large format, convenient loading and unloading, easy demoulding, high construction efficiency, excellent technical quality and economic benefits. Bamboo plywood used in construction has high requirements on the strength and water resistance of the board. [0003] The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J197/00C09J11/04C09J11/06C09J11/08
CPCC09J103/02C08K2003/387C08L2205/035C09J11/04C09J11/06C09J11/08C08L97/005C08K13/02C08K3/32C08K5/098C08K3/38C08K5/17
Inventor 杨健杨金雄傅文森
Owner 贵港市鑫宏木业有限公司
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