Basalt-fiber-reinforced soybean-based wood adhesive and preparation method thereof

A technology of basalt fiber and wood adhesives, applied in the preparation of animal glue or gelatin, adhesives, adhesive additives, etc., can solve the problems of high adhesive viscosity, low bonding strength, poor water resistance, etc., and achieve high bonding strength, Convenient sizing, and the effect of improving hydrophilicity

Active Publication Date: 2015-08-05
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process of these modified protein adhesives, a large dose of chemical products needs to be added, and there is still a strong dependence on non-renewable petrochemical products, and the performance of the adhesive is often due to high viscosity or low bonding strength. , or poor water resistance, causing many limitations in application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of basalt fiber reinforced soy-based wood adhesives:

[0022] (1) Put the basalt fiber into the low-temperature plasma surface modification treatment instrument (Changzhou New District Shitai Plasma Technology Development Co., Ltd., HD-1B type), discharge power 270W, treat for 3min, and then impregnate the reactant in the silane coupler. In the joint agent KH-550, turn on the ultrasonic oscillator, 40°C, power 500W, ultrasonically oscillate for 20min, take out the reactant, and dry it at 103±2°C to obtain the modified basalt fiber.

[0023] (2) In parts by weight, put 50 parts by weight of thiourea into a reaction kettle containing 1000 parts by weight of distilled water, control the reaction temperature at 40°C, stir and react at a rate of 230rpm for 10 min, and add 30 parts by weight of thiourea obtained in step 1. Modified basalt fiber, then raised the temperature to 80°C, and reacted for 30 minutes; then added 300 parts by weight of defatted soybean powd...

Embodiment 2

[0029] Preparation of basalt fiber reinforced soy-based wood adhesives:

[0030] (1) Put the basalt fiber into the low-temperature plasma surface modification treatment instrument, discharge power 500W, treat for 2 minutes, let the reactant be immersed in the silane coupling agent KH-580, turn on the ultrasonic oscillator, 50 ℃, Power 280W, ultrasonic vibration for 30 minutes, take out the reactants, and dry at 103±2°C to obtain modified basalt fibers;

[0031] (2) In terms of parts by weight, put 70 parts by weight of urea into a reactor containing 1000 parts by weight of distilled water, control the reaction temperature to 55°C, stir for 10 minutes at a stirring rate of 250 rpm, and add 50 parts by weight of the modified urea obtained in step 1. Then add 300 parts by weight of soybean dregs and keep it denatured for 20 minutes; then add 80 parts by weight of nano-calcium carbonate and stir evenly for 30 minutes at a stirring speed of 250 rpm; The brown viscous liquid wa...

Embodiment 3

[0037] Preparation of basalt fiber reinforced soy-based wood adhesives:

[0038] (1) Put the basalt fiber into the low-temperature plasma surface modification treatment instrument, discharge power is 100W, treat for 5min, then soak the reactant in silane coupling agent A-150, turn on the ultrasonic oscillator, 50℃, power 100W, ultrasonic vibration for 60min, take out the reactant, and then dry at 103±2℃ to obtain modified basalt fiber;

[0039] (2) In parts by weight, put 100 parts of ethanol into a reaction kettle containing 1000 parts by weight of distilled water, control the reaction temperature at 60°C, stir for 10 min at a stirring rate of 280 rpm, and add 50 parts by weight of modified basalt fiber; Raise the temperature to 90°C and react for 40 minutes; then add 350 parts by weight of soybean protein isolate, heat-preserve and denature for 20 minutes; then add 50 parts by weight of talcum powder, and stir evenly for 30 minutes at a stirring speed of 300 rpm; Add th...

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Abstract

The invention discloses a basalt-fiber-reinforced soybean-based wood adhesive and a preparation method thereof. The wood adhesive is prepared with soybean protein, a soybean protein denaturation agent, a soybean protein modification agent, modified basalt fibers and distilled water. The preparation method includes following steps: 1) uniformly mixing the soybean protein denaturation agent with the distilled water; 2) adding the modified basalt fibers, the soybean protein and the soybean protein modification agent; and 3) finally homogenizing the reaction liquid to prepare the wood adhesive. In the invention, through a grafting reaction between the hydrophilic modified basalt fibers and the denaturated soybean protein, the soybean-based wood adhesive is effectively improved in adhesive water resistance and adhesive strength. Meanwhile, by means of the nano particles for surface-modification to the soybean-based wood adhesive, the compatibility between soybean protein molecules and the basalt fibers is promoted and the solid content of the adhesive is increased. The wood adhesive is convenient to apply, is high in adhesive strength and is excellent in water resistance.

Description

technical field [0001] The invention relates to the field of wood adhesive production, in particular to a basalt fiber reinforced soybean-based wood adhesive and a preparation method thereof. Background technique [0002] At present, the wood adhesives used in my country's industry are mainly urea-formaldehyde, phenolic, and melamine resin adhesives. These adhesives are derived from petrochemical products and are non-renewable resources. These adhesives are produced and used. In the process, volatile gases such as formaldehyde and phenol will be continuously released, causing air pollution and endangering human health. Therefore, in recent years, researchers have paid more and more attention to the development of an environmentally friendly and renewable vegetable protein adhesive to replace traditional adhesives. Among them, soybean protein adhesives are low in price, rich in raw material sources, relatively simple in processing and production, and easy to control, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/04C09J11/06
Inventor 孙恩惠黄红英常志洲武国峰曲萍徐跃定
Owner JIANGSU ACAD OF AGRI SCI
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