Modified barbadosnut dreg adhesive and preparation method thereof

A technology of jatropha sap and adhesive, applied in the direction of adhesive, adhesive type, graft polymer adhesive, etc., can solve the problems of high curing temperature, low solid content, slow curing speed, etc., and achieve low curing temperature. , High solid content, the effect of reducing the curing temperature

Inactive Publication Date: 2012-11-21
宏耐木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, like other biomass adhesives, there are problems such as high viscosity, high curing temperature (above 150°C), slow curing speed, low solid content, high cost and difficult construction, which cannot meet the requirements of the industrial application of wood-based panels, hindering its use in man-made panels. use in board fabrication

Method used

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  • Modified barbadosnut dreg adhesive and preparation method thereof
  • Modified barbadosnut dreg adhesive and preparation method thereof
  • Modified barbadosnut dreg adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Prepare materials according to the following weight ratio (Kg):

[0034]

[0035] 2. Add all the above-mentioned raw materials into the reaction kettle, stir evenly, and prepare the Jatropha curcas meal solution;

[0036] 3. Adjust the pH value of the solution to 5.0, react at 50°C for 30 minutes, then raise the temperature to 90°C, and completely inactivate the biological enzyme;

[0037] 4. Add 3Kg of grafted monomer PEGDMA and 0.1Kg of ammonium persulfate initiator to react for 50min, set aside;

[0038] 5. Add 1Kg cross-linking agent HMDI and 0.05Kg catalyst stannous octoate and mix well before use.

[0039] The quality indicators of the prepared adhesives are shown in Table 1.

[0040] The performance index of adhesive of the present invention in table 1

[0041]

Embodiment 2

[0043] 1. Prepare materials according to the following weight ratio (Kg):

[0044]

[0045] 2. Add all the above-mentioned raw materials into the reaction kettle, stir evenly, and prepare the Jatropha curcas meal solution;

[0046] 3. Adjust the pH value of the solution to 5.0, react at 50°C for 60 minutes, then raise the temperature to 90°C, and completely inactivate the biological enzyme;

[0047] 4. Add 5Kg of grafted monomer acrylamide and 0.2Kg of potassium persulfate initiator to react for 50min, set aside;

[0048] 5. Add 10Kg cross-linking agent PAPI and 0.05Kg catalyst stannous octoate and mix well before use.

[0049] The quality indicators of the prepared adhesives are shown in Table 2.

[0050] The performance index of table 2 adhesive of the present invention

[0051]

Embodiment 3

[0053] 1. Prepare materials according to the following weight ratio (Kg):

[0054]

[0055] 2. Add all the above-mentioned raw materials into the reaction kettle, stir evenly, and prepare the Jatropha curcas meal solution;

[0056]3. Adjust the pH value of the solution to 7.0, react at 30°C for 70 minutes, then raise the temperature to 90°C, and completely inactivate the biological enzyme;

[0057] 4. Add 8Kg of graft monomer 2,3-epoxypropyl methacrylate and 0.1Kg of initiator cerium ammonium nitrate to react for 50min, set aside;

[0058] 5. Add 8Kg cross-linking agent PAPI and 0.15Kg catalyst dibutyltin dilaurate and mix well before use.

[0059] The quality indicators of the prepared adhesives are shown in Table 3.

[0060] The performance index of adhesive of the present invention of table 3

[0061]

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Abstract

The invention provides a modified barbadosnut dreg adhesive which comprises a barbadosnut dreg solution, a crosslinking agent and a catalyst, wherein the barbadosnut dreg solution is prepared by adding a biological enzyme, an initiator and a grafting monomer in barbadosnut dreg and then reacting. The modified barbadosnut dreg adhesive comprises the following components in parts by weight: 100 parts of water, 0.1-2 parts of biological enzyme, 15-60 parts of barbadosnut dreg, 0.1-1 part of initiator, 2-8 parts of grafting monomer, 1-15 parts of crosslinking agent and 0.02-0.2 parts of catalyst.The modified barbadosnut dreg adhesive has the advantages of high solid content, low viscosity and low solidification temperature; by using the adhesive, the problems that compression ratio, waste ratio and energy consumption are increased when an artificial board is produced are effectively solved, and thus the adhesive can be conveniently and widely used in artificial board manufacturing; and simultaneously, the artificial board prepared from the adhesive has high water-tolerant bonding strength and can meet the requirement of II veneer boards, and zero formaldehyde is released by the artificial board.

Description

technical field [0001] The invention relates to an adhesive and a preparation method, in particular to a modified jatropha meal adhesive and a preparation method thereof. Background technique [0002] my country is the world's largest producer and consumer of wood-based panels. In 2009, the output of wood-based panels in my country exceeded 115.46 million cubic meters, of which the output of plywood and blockboard was 44.5124 million cubic meters and 14.7871 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 resources and environmental problems faced are becoming more and more serious. [0003] In recent years, in order to alleviate the national oil shortage and ensure energy security, my country has vigorously developed biomass energy an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/00C08F289/00C12P1/00
Inventor 张世锋李建章高强周文瑞
Owner 宏耐木业有限公司
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