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Corrosion-resistant plywood and preparation method thereof

A plywood, corrosion-resistant technology, used in the preparation of animal glue or gelatin, chemical instruments and methods, adhesives, etc. Effect

Pending Publication Date: 2022-05-13
漳州市桥头木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the above-mentioned related technologies, the inventor believes that: the corrosion resistance of existing plywood needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0040] Adhesive preparation example 1

[0041] Adhesive is mainly made by the steps of following method in this preparation example:

[0042] 1): Take a mixing bucket with a stirring paddle, place chitosan, whey protein and 1% glacial acetic acid solution together in the mixing bucket, stir for 35 minutes with the paddle, and set the stirring speed of the paddle to 30r / min; During the stirring process, keep the temperature of the mixing tank at 63°C, cool it down, and prepare the mixed liquid;

[0043] 2): Add the modifier to the mixed solution prepared in step 1), and stir evenly; the mass ratio of chitosan, whey protein, modifier and 1% glacial acetic acid solution used is 1:3 : 0.5: 15; The modifier used is glyoxal.

preparation example 2

[0045] The difference between this adhesive preparation example and adhesive preparation example 1 is that the mass ratio of chitosan, whey protein, modifier and 1% glacial acetic acid solution used in step 2) is 3:5: 0.8:25, and the rest are the same as those in Adhesive Preparation Example 1.

preparation example 3

[0047] The difference between this adhesive preparation example and adhesive preparation example 1 is that the mass ratio of chitosan, whey protein, modifier and 1% glacial acetic acid solution used in step 2) is 2:4: 0.6:20, and the rest are the same as those in Adhesive Preparation Example 1.

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Abstract

The invention relates to the field of plywood preparation, in particular to corrosion-resistant plywood and a preparation method thereof.The preparation method comprises the following steps that S1, a plurality of veneers are taken and dried, the veneers are soaked in preservative liquid, the veneers and the preservative liquid are subjected to vacuum impregnation treatment and taken out, and an initial treatment plate is prepared; the preservative solution is prepared from a preservative, water-soluble phenolic resin, a curing agent and water according to the mass ratio of (0.4-0.6): (15-25): (1-1.5): (95-105); the preservative is any one of boric acid, borax and disodium octaborate tetrahydrate; s2, carrying out drying treatment on the primary treatment plate prepared in the step S1 to prepare a standby plate; s3, the standby boards prepared in the step S2 are coated with an adhesive, the multiple standby boards are bonded to one another, and a composite board is prepared; and S4, performing hot pressing on the composite board prepared in the step S3, and cutting to obtain the composite board. The method has the advantage that the corrosion resistance of the plywood is improved.

Description

technical field [0001] The present application relates to the field of plywood preparation, more specifically, it relates to a corrosion-resistant plywood and its preparation method. Background technique [0002] Plywood is a board material made by bonding veneers with adhesives. It is usually used as a packing box material for airplanes, trains and buildings. In order to prolong the service life of plywood, plywood needs to have good strength and avoid using At the same time, because the plywood is a wooden board, it is easily corroded by microbial fungi and moths during long-term use and storage, which makes the plywood moldy and discolored, which affects the toughness and service strength of the plywood, and then affects the quality of the finished product made of plywood. service life. [0003] In the related art above, the inventor believes that the corrosion resistance of the existing plywood needs to be improved. Contents of the invention [0004] In order to impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08B27M1/08B27K3/08B27K3/52B27K3/38B27K3/16B27D1/04C09J189/00C09J105/08C09J11/08C09J11/06B32B21/13B32B7/12B32B37/12B32B37/06B32B37/10B32B38/00B32B38/08B32B38/16
CPCB27D1/08B27M1/08B27K3/08B27K3/52B27K3/38B27K3/163B27D1/04C09J189/00C09J11/08C09J11/06B32B21/13B32B7/12B32B37/1284B32B37/06B32B37/10B32B38/0004B32B38/08B32B38/164B27K2240/20C08K2201/014B32B2260/026B32B2260/046B32B2307/7145B32B2439/62C08L5/08C08K5/09C08K5/07
Inventor 陈惠芬
Owner 漳州市桥头木业有限公司
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