Polychloroprene adhesive and preparation method thereof

A chloroprene adhesive and chloroprene rubber technology, applied in chloroprene adhesives, adhesives, adhesive types, etc., can solve problems such as environmental and human health hazards, continuous release of formaldehyde, etc., and meet environmental protection requirements , The effect of long-lasting action time and high capture efficiency

Active Publication Date: 2014-01-08
GUANGDONG SANVO CHEM IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patents all use phenolic resin in the process of preparing chloroprene adhesive, which has the disadvantage of continuously releasing formaldehyde, and some methods also use restricted toluene as a solvent, which is harmful to the environment and human health

Method used

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  • Polychloroprene adhesive and preparation method thereof
  • Polychloroprene adhesive and preparation method thereof
  • Polychloroprene adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Add 5.0 parts of methylcyclopentane, 30.0 parts of 6# solvent gasoline, 15.0 parts of ethyl acetate, and 10.0 parts of dimethyl carbonate into the high-speed reaction kettle according to the weight ratio of the formula, start the motor to stir, and stir at 150 rpm At the stirring speed per minute, add 3.0 parts of dehydrated malic anhydride resin and 3.0 parts of p-tert-butylphenol polyacetylene resin, stir for 60 minutes until completely dissolved, add 0.5 parts of high-activity magnesium oxide and 0.1 parts of water, at 800 rpm Add 14.0 parts of CR2442, 0.2 parts of ODA, 0.72 parts of ultra-fine fly ash, 0.08 parts of nano-anion powder, 0.25 parts of ammonium persulfate, and 0.25 parts of chitin at a stirring speed of 1 minute, and stir for 6 to 8 hours until completely dissolved. Filtrate the material to obtain neoprene adhesive.

Embodiment 2

[0025] According to the formula weight ratio, add 14.0 parts of methylcyclopentane, 20.0 parts of 6# solvent gasoline, 21.0 parts of ethyl acetate, and 17.0 parts of dimethyl carbonate into the high-speed reactor, start the motor to stir, at 100 rpm At the stirring speed, add 5.0 parts of dehydrated malic anhydride resin, 4.0 parts of p-tert-butylphenol polyacetylene resin, stir for 30 minutes until completely dissolved, add 1.0 parts of high-activity magnesium oxide and 0.6 parts of isopropanolamine, at 900 rpm Add 15.0 parts of A90, 0.6 parts of KY4055, 0.1 parts of superfine fly ash, 0.9 parts of nano-anion powder, 1.0 parts of sodium persulfate, and 0.2 parts of chitin at the stirring speed per minute, and stir for 6 to 8 hours until completely dissolved , and filter the material to obtain neoprene adhesive.

Embodiment 3

[0027] According to the formula weight ratio, add 10.0 parts of methylcyclopentane, 24.0 parts of 6# solvent gasoline, 24.0 parts of ethyl acetate, and 12.0 parts of dimethyl carbonate into the high-speed reactor, start the motor to stir, at 120 rpm Under stirring speed, add 7.0 parts of dehydrated malic anhydride resin, 1.0 parts of p-tert-butylphenol polyacetylene resin, stir for 45 minutes until completely dissolved, add 1.5 parts of high-activity magnesium oxide, 1.0 parts of N-methyl-2-pyrrolidone , at a stirring speed of 1000 rpm, add 20.0 parts of A90, 0.8 parts of 4010NA, 1.0 parts of ultra-fine fly ash, 1.0 parts of nano-anion powder, 0.5 parts of ammonium persulfate, 0.4 parts of potassium persulfate, and 0.2 parts of chitin part, stirred for 8 hours until completely dissolved, and filtered out to obtain neoprene adhesive.

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Abstract

The invention discloses a polychloroprene adhesive and a preparation method thereof. The polychloroprene adhesive is characterized by being composed of following main components: chloroprene rubber, dehydrated malic acid resin, p-tert-butyl phenol polyacetylene resin, active magnesium oxide, an anti-aging agent, a solvent, a catalyst, a formaldehyde absorbent, and a formaldehyde remover. The polychloroprene adhesive and the preparation method thereof have the advantages that: (1) the polychloroprene adhesive does not contain benzene, methyl benzene, dimethyl benzene, and halohydrocarbons toxic solvents, has a high content of non-volatile materials, and can satisfy the environmental requirements; (2)the preparation method substitutes hydrated malic acid resin and p-tert-butyl phenol polyacetylene for phenolic resin as the tackifying agent, thus controls the release of free formaldehyde from the source, and at the same time guarantees a good adhesive property; (3) a formaldehyde absorbent and a formaldehyde remover are added, can continuously release negative ions, firstly captures free formaldehyde and then eliminates the free formaldehyde, has a high capture efficient of free formaldehyde and a long effective time, and is capable of continuously eliminating the free formaldehyde released from the decorating materials for a long time.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a formaldehyde-free, low-toxicity neoprene adhesive with long-lasting absorbing and formaldehyde-eliminating functions for wood bonding, furniture decoration, advertising art, etc. and a preparation method thereof. Background technique [0002] Neoprene adhesive is a solvent-based rubber adhesive. Neoprene adhesives prepared by conventional methods mostly use highly crystalline neoprene as the main component, and then add tackifiers, solvents, additives and other materials to synthesize them. This method has low raw material costs, sufficient supply, and simple production processes and equipment. The synthesis rate is fast and the storage period is long. The prepared adhesive has the characteristics of high initial adhesion, high bonding strength, good weather resistance, and wide application range. It is widely used in furniture, leather, construction, advertising, interior decoration a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J111/00C09J11/08C09J11/04
Inventor 陈炳耀
Owner GUANGDONG SANVO CHEM IND TECH
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