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Adhesive applied to wood processing and preparation method of adhesive

A technology for adhesives and wood, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor water resistance, poor rheological properties, insufficient bonding strength, etc., and achieve strong water resistance Effect

Inactive Publication Date: 2015-08-05
陈素素
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The starch-based wood adhesives commonly used today often have technical shortcomings such as poor water resistance, insufficient bonding strength, poor rheological properties, and difficult gluing.

Method used

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  • Adhesive applied to wood processing and preparation method of adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An adhesive used in wood processing, its components are composed of the following components by weight percentage:

[0033] Starch 100 parts

[0034] 0.2 parts of ferrous sulfate

[0035] Sodium hypochlorite 2 parts

[0036] 13 parts vinyl acetate

[0037] Vinegar-acrylic emulsion 13 parts

[0038] Tributyl phosphate 0.1 parts

[0039] Functional molecules 5.5 parts

[0040] Fumed silica 6 parts

[0041] 40% sodium hydroxide solution 29 parts

[0042] 200 parts of water.

[0043] The above-mentioned preparation method of an adhesive applied to wood processing, the preparation steps of the described adhesive applied to wood processing are:

[0044] Refining of S1 starch

[0045] S1.1 After mixing the starch and water evenly, adjust the pH to 8-9 with sodium hydroxide solution and let it stand for 20-30 hours, then heat and dry at 80-90°C and grind it finely for later use;

[0046] Preparation of S2 oxidized starch

[0047] S2.1 Add the ground starch into water...

Embodiment 2

[0052] An adhesive used in wood processing, its components are composed of the following components by weight percentage:

[0053] Starch 100 parts

[0054] 0.4 parts of ferrous sulfate

[0055] Sodium hypochlorite 5 parts

[0056] 10 parts vinyl acetate

[0057] Vinegar-acrylic emulsion 8 parts

[0058] Tributyl phosphate 0.05 part

[0059] Functional molecules 3.7 parts

[0060] Fumed silica 2 parts

[0061] 25 parts of 40% sodium hydroxide solution

[0062] 100 parts of water.

[0063] The above-mentioned preparation method of an adhesive applied to wood processing, the preparation steps of the described adhesive applied to wood processing are:

[0064] Refining of S1 starch

[0065] S1.1 After mixing the starch and water evenly, adjust the pH to 8-9 with sodium hydroxide solution and let it stand for 20-30 hours, then heat and dry at 80-90°C and grind it finely for later use;

[0066] Preparation of S2 oxidized starch

[0067] S2.1 Add the ground starch into wat...

Embodiment 3

[0072] An adhesive used in wood processing, its components are composed of the following components by weight percentage:

[0073] Starch 100 parts

[0074] 0.3 parts of ferrous sulfate

[0075] Sodium hypochlorite 3 parts

[0076] Vinyl acetate 11 parts

[0077] Vinegar-acrylic emulsion 11 parts

[0078] Tributyl phosphate 0.09 parts

[0079] Functional molecules 4.8 parts

[0080] Fumed silica 4 parts

[0081] 27 parts of 40% sodium hydroxide solution

[0082] 180 parts of water.

[0083] The above-mentioned preparation method of an adhesive applied to wood processing, the preparation steps are:

[0084] 6. The preparation steps of the adhesive are:

[0085] Refining of S1 starch

[0086]S1.1 After mixing the starch and water evenly, adjust the pH to 8-9 with sodium hydroxide solution and let it stand for 20-30 hours, then heat and dry at 80-90°C and grind it finely for later use;

[0087] Preparation of S2 oxidized starch

[0088] S2.1 Add the ground starch into...

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Abstract

The invention discloses an adhesive applied to wood processing. The adhesive is prepared from the following components in percentage by weight: 100 parts of starch, 0.2-0.4 part of ferrous sulfate, 2-5 parts of sodium hypochlorite, 10-13 parts of vinyl acetate, 8-13 parts of a vinyl acetate-acrylic emulsion, 0.05-0.1 part of tributyl phosphate, 3.7-5.5 parts of functional molecules, 2-6 parts of fumed silica, 25-29 parts of 40% sodium hydroxide solution and 100-200 parts of water. By virtue of modification of the starch with alkaloid, the natural adhesive disclosed by the invention can form a heat-resistant film under the mutual blending action of nano SiO2 sol and propolis missible oil when used, so that the viscosity, stability and durability of the adhesive are greatly improved.

Description

technical field [0001] The invention relates to an adhesive, in particular to an adhesive used in wood processing and a preparation method thereof. Background technique [0002] Adhesive: A natural or synthetic, organic or inorganic substance that can connect two or more parts or materials together through interface adhesion and cohesion. It is one of the substances commonly used in modern industry. [0003] Adhesives are divided into natural adhesives and synthetic adhesives according to the synthesis of raw materials. Synthetic adhesives are used in a wide range and have strong adhesive properties, but they produce harmful substances, are not easy to degrade, and pollute the environment; natural adhesives have rich sources of raw materials, no pollution to the environment, convenient sizing, and easy recycling. [0004] The wood processing industry is a big player in glue. The adhesives consumed by my country's wood industry are mainly concentrated in plywood, particle b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/00C09J4/06C09J103/02C09J11/04C09J11/06
Inventor 陈素素
Owner 陈素素
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