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Emulsion for bi-component wood bonding adhesive and synthesis method thereof

A panel glue, two-component technology, applied in the direction of adhesives, adhesive types, adhesive additives, etc., can solve the problems of polluting the ecological environment and human health, achieve fast drying speed, improve conversion rate, and improve water resistance Effect

Active Publication Date: 2014-04-09
顶立新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional "trialdehyde" glue has been eliminated due to the continuous release of formaldehyde, which seriously pollutes the ecological environment and human health.

Method used

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  • Emulsion for bi-component wood bonding adhesive and synthesis method thereof

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preparation example Construction

[0062] Embodiments of the present invention further provide a method for preparing the emulsion for puzzle glue, comprising the following steps:

[0063] (1) dissolving the initiator in 20 parts by weight of water to obtain an initiator solution for polymerization;

[0064] (2) 120-130 parts by weight of vinyl acetate, vinyl tertiary carbonate monomer, hydroxyethyl methacrylate, functional monomer, and methacrylic acid are mixed and stirred evenly to make a mixed monomer;

[0065] (3) Add polyvinyl alcohol and 165-185 parts by weight of water in a container, heat to 90-96°C under stirring conditions to dissolve for 50-60 minutes, then cool down to 50-60°C, add emulsifier, buffer, Then add 15 parts by weight of vinyl acetate and 6 parts by weight of initiator solution, and emulsify for 10-15 minutes;

[0066] (4) Raise the temperature to 70-80°C, keep it warm for 25-35 minutes, and start to drop the mixed monomer prepared in step 2 after there is no reflux, and control the dro...

Embodiment 1

[0071] The ammonium persulfate of 0.4 parts by weight is dissolved in 20 parts by weight of water to obtain an initiator solution; 120 parts by weight of vinyl acetate, 8 parts by weight of tertiary carbonic acid vinyl ester monomer VeoVa-9, acetoacetoxymethyl 2.0 parts by weight of ethyl acrylate, 5 parts by weight of hydroxyethyl methacrylate, and 1.5 parts by weight of methacrylic acid were mixed and stirred evenly to prepare a total of 136.5 parts by weight of mixed monomers.

[0072] In a 500mL four-necked flask, add 4 parts by weight of Changchun Chemical Industry Polyvinyl Alcohol BP-1788, 4 parts by weight of BP-0588, 3 parts by weight TR-17 and 165 parts by weight of water, under stirring conditions, heating Dissolve at 90°C for 50 minutes, then lower the temperature to 50°C, add 1.0 parts by weight of disodium alkyl polyoxyethylene ether succinate monoester sulfonate, 0.5 parts by weight of sulfosuccinate derivatives, and 0.3 parts by weight of sodium bicarbonate Par...

Embodiment 2

[0074] 0.5 parts by weight of ammonium persulfate is dissolved in 20 parts by weight of water to obtain an initiator solution; 125 parts by weight of vinyl acetate, 6 parts by weight of tertiary carbonic acid vinyl ester monomer VeoVa-9, 5 parts by weight of VeoVa -10. 3 parts by weight of acetoacetoxy ethyl methacrylate, 7 parts by weight of hydroxyethyl methacrylate, and 2 parts by weight of methacrylic acid were mixed and stirred evenly to prepare a total of 148 parts by weight of the mixed monomer.

[0075] In a 500 mL four-necked flask, add 5 parts by weight Shanghai Petrochemical polyvinyl alcohol PVA1792, 3 parts by weight Nippon Gosei Chemical polyvinyl alcohol WR-14, 4 parts by weight Changchun Chemical Industry polyvinyl alcohol BP-0588 and 173 parts by weight Count the water, under stirring conditions, heat to 93°C to dissolve for 55 minutes, then cool down to 55°C, add 1.2 parts by weight of alkylphenol allyl polyether sulfate, alkyl polyoxyethylene ether succinic a...

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Abstract

The invention discloses an emulsion for a bi-component wood bonding adhesive and a synthesis method thereof. The emulsion for a bi-component wood bonding adhesive comprises: 11-15 parts by weight of polyvinyl alcohol, 1.5-2.0 parts by weight of an emulsifier, 0.3-0.5 part by weight of a buffering agent, 135-145 parts by weight of vinyl acetate, 8-14 parts by weight of vinyl ester of versatic acid, 5-8 parts by weight of hydroxyethyl methylacrylate, 2.0-3.5 parts by weight of a functional monomer, 1.5-2.5 parts by weight of methacrylic acid, 5-10 parts by weight of a plasticizer, 0.5-1 part by weight of a preservative, 0.4-0.6 part by weight of an initiator, and 185-205 parts by weight of water. The emulsion for the bi-component wood bonding adhesive takes water as a dispersion medium, is convenient to use, and has no pollution to the environment. After compounding, a polyisocyanate curing agent is added to form the bi-component wood bonding adhesive, which has no pollution to bonded materials, and has the characteristics of room temperature curing, high bonding strength, and good resistance to water, heat and aging.

Description

technical field [0001] The invention relates to an adhesive preparation technology, in particular to an emulsion for high-strength two-component puzzle glue and a synthesis method thereof. Background technique [0002] With the improvement of people's living standards, the demand for wooden products is increasing day by day, but forest resources are very scarce and cannot meet the increase in actual demand at all. For this reason, form a kind of wood reprocessing industry that puts together big wood with small wood for many years, to make full use of various woods, reduce waste. [0003] Here, in the process of assembling small wood into large wood, a large amount of jigsaw glue is needed. The traditional "trialdehyde" glue has been eliminated due to the continuous release of formaldehyde, which seriously pollutes the ecological environment and human health. At present, the requirements for panel glue are good performance, high quality, environmental protection and safety,...

Claims

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Application Information

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IPC IPC(8): C09J151/00C09J11/06C08F261/04C08F218/08C08F218/00C08F220/28C08F220/06C08F2/30C08F2/26
Inventor 刘维均罗平周闰阳陆斌徐建宋志强
Owner 顶立新材料科技股份有限公司
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