Acrylic acid copolymerized grafted starch environmental-protection adhesive

A technology of grafted starch and adhesives, which is applied in the direction of grafted polymer adhesives, adhesives, adhesive types, etc., can solve problems such as unfavorable health of operators, complex composition of formaldehyde-free adhesives, etc., to shorten curing time, The composition and processing method are simple and the effect of excellent performance

Inactive Publication Date: 2019-02-26
上海春广农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The composition of the above-mentioned formaldehyde-free adhesives for wood-based panels is relatively complicated, a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] To prepare an emulsifier aqueous solution, take 1 mass part of sodium lauryl sulfate and 2 mass parts of OP-10, dissolve them in 30 mass parts of water, and the concentration of the emulsifier is 10%.

[0024] To prepare an aqueous initiator solution, 0.6 parts by mass of persulfamide and 0.6 parts by mass of sodium bisulfite were taken, dissolved in 12 parts by mass of water, and the concentration of the aqueous initiator solution was 10%.

[0025] To prepare an aqueous solution of a crosslinking agent, 2 parts by mass of N-methylolacrylamide was taken and dissolved in 20 parts by mass of water, and the concentration of the aqueous solution of the crosslinking agent was 10%.

[0026] Take 55 parts by mass of vinyl acetate, 20 parts by mass of butyl acrylate, and 0.5 parts by mass of protein powder.

[0027] oxidized starch gelatinization treatment, take 25 mass parts of oxidized starch, 250 mass parts of water, stir and mix, gelatinization temperature 50-80 ℃, continuo...

Embodiment 2

[0031] To prepare an aqueous emulsifier solution, 2 parts by mass of sodium lauryl sulfate and 3 parts by mass of OP-10 were taken, dissolved in 50 parts by mass of water, and the concentration of the emulsifier was 10%.

[0032] To prepare an aqueous initiator solution, 0.7 parts by mass of persulfamide and 0.7 parts by mass of sodium bisulfite were taken, dissolved in 14 parts by mass of water, and the concentration of the aqueous initiator solution was 10%.

[0033] To prepare an aqueous solution of a crosslinking agent, 3 parts by mass of N-methylolacrylamide was taken and dissolved in 30 parts by mass of water, and the concentration of the aqueous solution of the crosslinking agent was 10%.

[0034] Take 60 parts by mass of vinyl acetate, 25 parts by mass of butyl acrylate, and 0.8 parts by mass of protein powder.

[0035] Gelatinization treatment of oxidized starch, take 30 mass parts of oxidized starch and 300 mass parts of water, stir and mix, gelatinization temperatur...

Embodiment 3

[0039] To prepare an emulsifier aqueous solution, take 3 parts by mass of sodium lauryl sulfate and 4 parts by mass of OP-10, dissolve them in 70 parts by mass of water, and the concentration of the emulsifier is 10%.

[0040] To prepare an aqueous initiator solution, 0.8 parts by mass of persulfamide and 0.8 parts by mass of sodium bisulfite were taken, dissolved in 16 parts by mass of water, and the concentration of the aqueous initiator solution was 10%.

[0041] To prepare an aqueous solution of a crosslinking agent, 4 parts by mass of N-methylolacrylamide was taken and dissolved in 40 parts by mass of water, and the concentration of the aqueous solution of the crosslinking agent was 10%.

[0042] Take 65 parts by mass of vinyl acetate, 30 parts by mass of butyl acrylate, and 1 part by mass of protein powder.

[0043] Gelatinization treatment of oxidized starch, take 35 parts by mass of oxidized starch and 350 parts by mass of water, stir and mix, gelatinization temperatur...

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PUM

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Abstract

The invention relates to an acrylic acid copolymerized grafted starch environmental-protection adhesive, which comprises the following raw materials by mass: 25-35 parts of oxidized starch, 55-65 parts of vinyl acetate, 20-30 parts of butyl acrylate, 2-4 parts of N-hydroxymethyl acrylamide, 1-3 parts of sodium lauryl sulfate, 2-4 parts of OP-10, 0.6-0.8 part of ammonium persulfate, 0.6-0.8 part ofsodium hydrogen sulfite, 0.5-1 part of protein powder, and 310-480 parts of water, wherein the environmental-protection adhesive is subjected to microwave heating treatment, the microwave working frequency is 2450 MHz, and the heating time is 30-50 S. According to the present invention, the environmental-protection adhesive can well control free formaldehyde, and the detection results (detectionmethod GB/T 17657-2013) show that the formaldehyde emission is only 0.17 mg/L; the detection results (detection method GB/T 10004-2008) show that the environmental-protection adhesive does not containbenzene-based solvent, toluene and xylene; and the environmental-protection adhesive has advantages of simple composition, simple processing method and wide application range.

Description

technical field [0001] The invention belongs to adhesives, in particular to an acrylic acid copolymerized grafted starch environment-friendly adhesive. Background technique [0002] At present, most wood-based panels including MDF, particle board, fiberboard, and plywood use urea-formaldehyde resin glue, phenolic glue, melamine-formaldehyde resin glue or isocyanate glue as adhesives, especially the amount of urea-formaldehyde resin glue accounts for 80% of the total amount of adhesives. about. [0003] All of the above adhesives more or less contain harmful chemical components such as formaldehyde, benzene, toluene, etc., especially the release of free formaldehyde will pollute the environment for a long time and endanger people's health. [0004] The invention patent of authorized notification number CN1313555C 'A formaldehyde-free adhesive for wood-based panels' discloses the following technical scheme: using a cross-linkable and curable formaldehyde-free polymer compound...

Claims

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Application Information

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IPC IPC(8): C09J151/02C08F251/00C08F218/08C08F220/18C08F220/58C08F2/24C08B30/18C08J3/28
CPCC09J151/02C08B30/18C08F2/24C08F251/00C08J3/28C08J2489/00C08J2351/02C08F220/1804C08F220/58
Inventor 范维金王振华郭玉英计祥林王玉年
Owner 上海春广农业科技发展有限公司
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