Modified vegetable protein adhesive and preparation method thereof

A plant protein and adhesive technology, which is applied in the preparation of protein adhesives, animal glue or gelatin, adhesives, etc., can solve the problems of no improvement in flow performance, wood degradation and discoloration, and short service life of products, and it is easy to achieve the quality of finished products The effect of control, fast curing speed and low production cost

Active Publication Date: 2013-03-20
山东千森木业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hot pressing temperature is high, and the following problems are prone to occur: ①The compression rate is high, and the yield rate is low; the cost increases
②Before the pressure relief, the steam in the board cannot fully escape, which will lead to bubbling defects, increase the scrap rate, increase the cost, and when the solid content is low, the bubbling phenomenon is particul

Method used

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  • Modified vegetable protein adhesive and preparation method thereof
  • Modified vegetable protein adhesive and preparation method thereof
  • Modified vegetable protein adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Prepare materials according to the following weight ratio (Kg):

[0040]

[0041]

[0042] 2. Add all the above-mentioned raw materials into the reaction kettle, stir evenly, and obtain the vegetable protein meal solution;

[0043] 3. Adjust the pH value of the solution to 7.0 with NaOH, react at 50°C for 60 minutes, then raise the temperature to 90°C, and completely inactivate the biological enzyme;

[0044] 4. Add 1Kg of PEO-PPO-PEO emulsifier, and process it with a homogenizer to make it fully emulsified and dispersed, with a pressure of 60MPa, and set aside;

[0045] 5. Add 15Kg of water-based epoxy resin crosslinking agent and 5kg of hexamethylenediamine curing agent before use, and stir evenly. The performance indicators of the vegetable protein adhesives are detected, as shown in Table 1.

Embodiment 2

[0047] 1. Prepare materials according to the following weight ratio (Kg):

[0048]

[0049] 2. Add all the above-mentioned raw materials into the reaction kettle, stir evenly, and obtain the vegetable protein meal solution;

[0050] 3. KOH adjusted the pH value of the solution to 7.0, reacted at 50°C for 180 minutes, then raised the temperature to 90°C, and completely inactivated the biological enzyme;

[0051] 4. Add 0.5Kg sorbitan fatty acid ester emulsifier, 0.7Kg SDS and 0.8KgPEO-PPO-PEO, and process it with a homogenizer to make it fully emulsified and dispersed, and set aside;

[0052] 5. Before use, add 10Kg of water-based epoxy resin crosslinking agent and 4kg of diethylenetriamine, and stir evenly. The performance indicators of the vegetable protein adhesives are detected, as shown in Table 1.

Embodiment 3

[0054] 1. Prepare materials according to the following weight ratio (Kg):

[0055]

[0056] 2. Add all the above-mentioned raw materials into the reaction kettle, stir evenly, and obtain the vegetable protein meal solution;

[0057] 3. NaOH adjusted the pH of the solution to 5.5, reacted at 50°C for 120 minutes, then raised the temperature to 90°C, and completely inactivated the biological enzyme;

[0058] 4. Add 0.4Kg SDBS and 1.0Kg PEO-PPO-PEO, and process it with a homogenizer to make it fully emulsified and dispersed, and set aside;

[0059] 5. Before use, add 12Kg of water-based epoxy resin crosslinking agent and 8kg of m-phenylenediamine, and stir evenly. The performance indicators of the vegetable protein adhesives are detected, as shown in Table 1.

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Abstract

The invention relates to a modified vegetable protein adhesive and a preparation method thereof. The modified vegetable protein adhesive comprises the following raw materials of water, bio-enzyme, vegetable protein meals, an emulsifying agent and a curing agent. The vegetable protein adhesive, prepared by the invention, is low in curing temperature, high in curing speed, high in solid content, small in viscosity, good in flowability, easy and uniform to gelatinize, small in glue-spread amount and high in bonding strength and water-resistant strength, meets the requirements of industrial application of artificial boards, and is conveniently and widely used in the artificial board industry. The raw materials of the modified vegetable protein adhesive are wide in source, low in cost and biodegradable. The preparation method is simple, the process condition is relatively mild, the operation is simple and convenient, the quality of a finished product is easy to control, and the preparation cost is low.

Description

technical field [0001] The invention relates to a vegetable protein adhesive, in particular to a modified vegetable protein adhesive and a preparation method thereof. Background technique [0002] Since the reform and opening up, my country's wood-based panel industry has developed rapidly. The annual output has increased from 996,000 cubic meters in 1980 to 153.6 million cubic meters in 2010, of which the output of plywood exceeded 71 million cubic meters. With the continuous and rapid development of the wood processing industry, the amount of three-aldehyde adhesives (urea-formaldehyde resin, phenolic resin and melamine resin) is gradually increasing, accounting for more than 95% of the amount of wood adhesives, and the resource and environmental problems faced are becoming more and more serious. With the increasing awareness of people's health, indoor environment, and quality of life, the air pollution and health problems caused by the release of formaldehyde from wood-ba...

Claims

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Application Information

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IPC IPC(8): C09J189/00C09J163/00C09J11/06C12P21/06
Inventor 张世锋李建章李红艳周文瑞高强
Owner 山东千森木业集团有限公司
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