Nanometer biological adhesive and its production process

An adhesive and biological technology, used in adhesives, adhesive types, protein adhesives, etc., can solve the problems of poor adhesive strength, difficult to popularize and apply, poor water resistance, etc., and achieve improved adhesive strength and price. Inexpensive, enhanced adhesive properties

Inactive Publication Date: 2007-06-06
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Before the present invention was made, foreign researchers used soybean powder as the main raw material, and compounded it with a solvent to form a patent rep

Method used

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  • Nanometer biological adhesive and its production process

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example one:

[0019] In the embodiment of the present invention, 10% by weight of soy protein isolate was first dispersed in 88.99% by weight of water, and stirred with a 94-2 type timed constant temperature magnetic stirrer for 30 minutes to prepare the base material; then, the coupling agent was slowly added at 0.01% by weight and Nano-silica is 1% by weight. Use a high-speed shearing emulsifier to disperse for 1 minute at a constant temperature of 50°C, and the dispersing speed of the high-speed shearing emulsifier is 5000 rpm. Finally, ultrasonic treatment is used for 30 minutes to obtain a nano biological adhesive It is spray-dried to be powdered nano bio-adhesive. Spray drying inlet air temperature: 160°C, outlet air temperature: 80°C, treatment time: 5 minutes.

Example Embodiment

[0020] Embodiment two:

[0021] In the embodiment of the present invention, 10% by weight of soy protein isolate was first dispersed in 89.98% by weight of water, stirred for 40 minutes with a 94-2 type timing thermostatic magnetic stirrer to prepare the base material, and then slowly added the coupling agent to 0.02% by weight and nanometer The silica content is 1% by weight, the temperature is 45°C, and the high-speed shearing emulsifier is used to disperse for 1.5 minutes, and the dispersing speed is 8000 rpm. Finally, ultrasonic treatment is used for 25 minutes to obtain the nano bio-adhesive, which is spray-dried. Powdered nano bio-adhesive. Spray drying inlet air temperature: 170°C, outlet air temperature: 85°C, drying treatment time: 7 minutes.

Example Embodiment

[0022] Embodiment three:

[0023] In the embodiment of the present invention, 10% by weight of soy protein isolate was first dispersed in 88.97% by weight of water, and stirred for 45 minutes with a 94-2 type timing constant temperature magnetic stirrer to prepare the base material; then the coupling agent was slowly added to 0.03% by weight and respectively. Nano-silica is 1% by weight. The high-speed shearing emulsifier is used to disperse for 2 minutes at a constant temperature of 55°C, and the dispersing speed of the high-speed shearing emulsifier is 7500 rpm. Finally, ultrasonic treatment is used for 35 minutes to obtain nano bio-adhesive. It is spray-dried to be powdered nano bio-adhesive. Spray drying inlet air temperature: 180°C, outlet air temperature: 90°C, treatment time: 6 minutes.

[0024] The adhesive strength and water resistance of the nano bio-adhesive prepared by the three embodiments of the present invention are much higher than that of the unmodified soy protei...

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Abstract

The present invention is nanometer biological adhesive and its production process, and relates to timber adhesive technology. Coupler and nanometer silica are used to modify soybean protein isolate so as to raise the adhesion characteristic. Through dispersing soybean protein isolate in water to form the base material, adding coupler and nanometer silica and dispersing homogeneously, ultrasonic treatment, and spray drying, powdered biological adhesive is produced. Coupler and nanometer silica capable of combining with soybean protein isolate homogeneously and firmly are used to strengthen the adhesion characteristic of soybean protein adhesive. The present invention is environment friendly.

Description

technical field [0001] The invention relates to a nano-biological adhesive and a production method thereof, in particular to molecular modification of soybean protein isolate by using a coupling agent and nano-silicon dioxide to improve its adhesive properties, and belongs to the technical field of wood adhesives. Background technique [0002] At present, wood adhesives are mostly high molecular polymers made of petroleum derivatives. Although these chemical adhesives have good adhesive strength and water resistance, they will evaporate during production, transportation and use. Phenols and formaldehydes are substances harmful to the human body and cause serious environmental pollution. [0003] Declining world oil reserves and their non-renewable nature make it difficult to meet the needs of the ever-expanding wood adhesive market. With the improvement of my country's environmental protection regulations and the enhancement of people's own health awareness, environmentally...

Claims

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Application Information

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IPC IPC(8): C09J189/00C09J11/04
Inventor 黄卫宁张学军邹奇波贾春利金亮秀
Owner JIANGNAN UNIV
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