Preparation method for wood adhesive with starch as raw material

A technology of wood adhesives and raw materials, applied in the direction of starch adhesives, adhesive types, chitin adhesives, etc., can solve the problem of excessive use of organic solvents, inability to fully utilize resources, and non-approval of genetically modified foods, etc. problem, to achieve the effect of strong adhesion

Inactive Publication Date: 2013-01-02
苏州市德莱尔建材科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above comments on the prior art, the technical problems to be solved by the present invention are: the amount of organic solvent used in the adhesives commonly used in furniture is large, the genetically modified food is not recognized by people, and the resources cannot be fully utilized

Method used

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  • Preparation method for wood adhesive with starch as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] S1: Add water into the reaction window and raise the temperature to 30°C;

[0023] S2: Add vegetable starch, alum, magnesium oxide, polyvinyl alcohol, phenol, and sodium hydroxide under the condition of starting stirring, and react for 60 minutes at a reaction temperature of 30°C;

[0024] S3: Add methylolacrylamide, chitosan, glycerin, disodium edetate, agar, and cellulose, start stirring, the reaction temperature is 30°C, and the reaction time is 60 minutes;

[0025] S4: Cool down to 20°C, hold for 60 minutes;

[0026] S5: Heat up to 30°C, add kaolin and bentonite, and stir evenly.

Embodiment 2

[0028] The difference with Example 1 is: the temperature in S1 is 40°C; the reaction temperature in S2 is 40°C, and the reaction time is 120 minutes; the reaction temperature in S3 is 35°C, and the reaction time is 100 minutes; 25°C in S4, the holding time 100 minutes; temperature in S5 was 35°C.

Embodiment 3

[0030] The difference with Example 1 is: the temperature in S1 is 50°C; the reaction temperature in S2 is 50°C, and the reaction time is 240 minutes; the reaction temperature in S3 is 40°C, and the reaction time is 120 minutes; 30°C in S4, the holding time 120 minutes; temperature in S5 was 40°C.

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Abstract

The invention provides a preparation method for a wood adhesive with starch as a raw material, which belongs to the technical field of binders. The wood adhesive is prepared from the following raw materials expressed in weight parts: 20 to 30 parts of plant starch, 5 to 10 parts of alum, 4 to 7 parts of magnesium oxide, 2 to 8 parts of polyvinyl alcohol, 2 to 3 parts of phenol, 2 to 3 parts of sodium hydroxide, 1 part of methylolacrylamide, 2 to 4 parts of kaolin, 2 to 4 parts of bentonite, 4 to 8 parts of chitosan, 2 to 4 parts of glycerin, 1 part of disodium ethylene diamine tetraacetate, 2 parts of agar, 3 to 6 parts of cellulose and 30 to 50 parts of water. The wood adhesive provided by the invention has the following technical effects: raw materials used in the invention are nontoxic and harmless and no organic solvent is added, so the wood adhesive accords with requirements on furniture quality by the masses. According to the invention, starch is used as a main raw material, wood with high strength and a strong bonding force can be prepared, and novel application of transgenic crops is provided.

Description

technical field [0001] The invention provides a wood adhesive using starch as a raw material, belonging to the technical field of adhesives. Background technique [0002] As people pay more and more attention to the environmental protection conditions of the home, more and more stringent requirements are put forward for the VOC gas and organic solvents released from the furniture. Traditional furniture adhesives basically contain organic solvents. These solvents are not easy to release completely in a short period of time, but will be produced slowly outward for a long time, which will have an impact on people's health. [0003] At the same time, people also hold a cautious attitude towards genetically modified foods, such as genetically modified soybeans and wheat. Therefore, the use of genetically modified food for other purposes is conducive to the full utilization of raw materials. Contents of the invention [0004] In view of the above comments on the prior art, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J129/04C09J105/08C09J11/04
Inventor 计慷
Owner 苏州市德莱尔建材科技有限公司
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