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A kind of biomass formaldehyde-free adhesive and its preparation and application method

The technology of an aldehyde adhesive and an application method is applied in the field of biomass aldehyde-free adhesive and its preparation and application. The effect of promoting dissolution

Active Publication Date: 2022-04-08
NANNING KETIAN SHUIXING TECH LTD CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art that the biomass adhesive is easy to be moth-eaten, easy to mold, and high cost, and to provide a kind of adhesive that does not need to add additional fungicides and has anti-insect and anti-mold properties. Biomass formaldehyde-free adhesive and its preparation method and application

Method used

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  • A kind of biomass formaldehyde-free adhesive and its preparation and application method
  • A kind of biomass formaldehyde-free adhesive and its preparation and application method

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Effect test

Embodiment 1

[0031] The preparation and application method of a kind of biomass formaldehyde-free adhesive of the present invention specifically comprises the following steps:

[0032] (1) Firstly, dry the pre-prepared papaya leaves at an ambient temperature of 25-35°C for 1-2 weeks, then place them in a high-temperature oven for 8 hours at 100-110°C, and control their moisture content at 5 % or less, then use a four-cutter high-speed pulverizer to pulverize it at a rate of 10000-15000 rpm for 10min, and filter it with a 200-mesh filter screen to obtain a coarse plant fiber powder, and use a ball mill for 25-30min to filter the coarse particle residue 1 Finally, it is taken out as plant fiber residue filling powder for later use. Mix and stir the 5 mass parts of plant fiber coarse material powder obtained above and the fiber solvent activation system according to the mass ratio of solid to liquid 0.5:5, wherein the fiber solvent activation system consists of 48 mass parts nitrogen methyl m...

Embodiment 2

[0040] The preparation and application method of a kind of biomass formaldehyde-free adhesive of the present invention specifically comprises the following steps:

[0041] (1) First, dry the pre-prepared bamboo leaves at an ambient temperature of 25-35°C for 1-2 weeks, then place them in a high-temperature oven at 100-120°C for 10 hours, and control their moisture content at 5 % or less, then use a four-blade high-speed pulverizer to pulverize it at a rate of 15000-20000 rpm for 10min, and filter it with a 200-mesh filter screen to obtain the plant fiber coarse material powder, and use a ball mill for 25-30min for the coarse particle residue after filtering Finally, it is taken out as plant fiber residue filling powder for later use. Mix and stir the 5 mass parts of plant fiber coarse material powder obtained above and the fiber solvent activation system according to the mass ratio of 2:35, wherein the fiber solvent activation system consists of 135 mass parts of nitrogen meth...

Embodiment 3

[0049] The preparation and application method of a kind of biomass formaldehyde-free adhesive of the present invention specifically comprises the following steps:

[0050] (1) First, dry the pre-prepared ramie at an ambient temperature of 25-35°C for 1-2 weeks, then place it in a high-temperature oven at 100-110°C for 8 hours, and control its moisture content at 5% Next, use a four-cutter high-speed pulverizer to pulverize it at a rate of 15000-18000 rpm for 10 minutes, and filter it with a 200-mesh filter screen to obtain a coarse plant fiber powder. Take it out and use it as plant fiber residue to fill the powder for later use. Mix and stir the 5 mass parts of plant fiber coarse material powder obtained above and the fiber solvent activation system according to the mass ratio of solid-liquid 5:100, wherein the fiber solvent activation system consists of 75 parts by mass of nitrogen methyl morpholine oxide and 5 parts by mass of dimethyl sulfoxide, 15 parts by mass of NN dim...

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Abstract

The invention relates to the technical field of formaldehyde-free adhesive processing, in particular to a biomass formaldehyde-free adhesive based on cellulose extract and its preparation and application method. The invention uses plant fiber with natural antibacterial effect as the main material, prepares cellulose aqueous solution through physical pulverization-pretreatment activation-dissolution and acetylation treatment, and uses plant protein powder, cross-linking agent, curing agent, and viscosity-increasing assistant After compounding, a biomass cellulose glue with good initial viscosity, easy sizing, water resistance and excellent natural antibacterial performance of the prepared board was obtained, which greatly improved the moldy situation of the glued layer of the board after sizing. Through The biomass-free formaldehyde-free adhesive prepared from the above-mentioned cellulose extract not only has a wide range of raw materials, low cost of preparation, environmental protection and no pollution, but also makes full use of natural resources, reduces the dependence of wood adhesives on petroleum resources, and can achieve The high-value utilization of plant fibers with natural antibacterial effect is of great significance to environmental protection.

Description

technical field [0001] The invention relates to a preparation method of a biomass-free formaldehyde adhesive, and more specifically relates to a biomass-formaldehyde-free adhesive and a preparation and application method thereof. Background technique [0002] With the enhancement of people's awareness of environmental protection and the improvement of environmental protection laws and regulations in various countries around the world, adhesives prepared from petroleum by-product polymer materials are increasingly subject to more policy restrictions, and traditional three-aldehyde adhesives are also being released due to the problem of formaldehyde. gradually eliminated by the market. In recent years, environmentally friendly formaldehyde-free adhesives made of biological materials are being favored by researchers and the market because of their advantages of no formaldehyde, non-toxicity, and low cost. As long as the biomass adhesives currently on the market are composed of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J101/12C09J103/02C09J177/00C09J11/08B27D1/04B27D1/08B27N1/02B27N3/10
CPCC09J189/00C09J11/08B27D1/08B27D1/04B27N3/10B27N1/02B27N1/0209C08L2205/035C08L2205/025C08L89/00C08L1/12C08L3/02C08L77/00C08L99/00C08L97/02
Inventor 闫成成朱保凌戴家兵李维虎赵曦
Owner NANNING KETIAN SHUIXING TECH LTD CO
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