Terpolymer-modified neoprene latex adhesive and preparation method thereof

A ternary copolymerization modification, chloroprene latex technology, used in mineral oil hydrocarbon copolymer adhesives, adhesives, graft polymer adhesives, etc., can solve the problem of high film-forming temperature of rubber particles and limited bonding materials , weak adhesion and other problems, to achieve the effect of reducing the film forming temperature, increasing the initial viscosity and lowering the synthesis temperature

Active Publication Date: 2014-09-03
重庆中科力泰高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the production process of the physical blending type is simple, the bonding materials are limited, and the adhesion to some new decorative materials such as polymer boards and wood-plastic boards is weak, and the storage stability is not good.
CR-MMA graft modified latex improves the adhesive fo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1: Preparation of neoprene latex adhesive 1 modified by ternary copolymerization

[0018] Ingredients formula:

[0019] 100kg of neoprene latex, 10kg of methyl methacrylate, 10kg of butyl acrylate, 0.5kg of emulsifier (sodium dodecylbenzene sulfonate), catalyst (the catalyst is potassium persulfate-sodium bisulfite redox, and The mass ratio of the oxidant component to the reducing agent component of the catalyst is 1:1) 0.2kg, thickening emulsion (petroleum resin emulsion) 10kg, antioxidant (N-phenyl-β-naphthylamine aqueous solution) 0.5kg, Thickener (polyvinyl alcohol) 0.5kg, preservative 0.1kg and zinc oxide 2kg.

[0020] The specific preparation steps are as follows:

[0021] (1) In a reactor equipped with a stirrer, condenser, and dropping funnel, first add neoprene latex, then add emulsifier, stir for 5 minutes, and then add methyl methacrylate, butyl acrylate and catalyst. Heat to 40°C under normal pressure, stir and react for 4 hours, and prepare grafted latex ...

Example Embodiment

[0025] Example 2: Preparation of ternary copolymer modified neoprene latex adhesive 2

[0026] Ingredients formula:

[0027] 100kg of neoprene latex, 40kg of methyl methacrylate, 50kg of butyl acrylate, emulsifier (a mixture of sodium lauryl sulfate and sodium secondary chain alkyl sulfonate in a weight ratio of 1:2) 5kg, catalyst (the said The catalyst is dibenzoyl peroxide-N,N-xylidine redox, and the mass ratio of the oxidant component to the reducing agent component of the catalyst is 1.5:1) 3kg, thickening emulsion (terpene-phenolic resin) Emulsion) 25kg, antioxidant (aqueous solution of N-phenyl-β-naphthylamine) 2kg, thickener (polyvinyl alcohol) 2kg, preservative 0.5kg and zinc oxide 5kg.

[0028] The specific preparation steps are as follows:

[0029] (1) In a reactor with a stirrer, condenser, and dropping funnel, first add neoprene latex, then add emulsifier, stir for 5 minutes, then add methyl methacrylate, butyl acrylate and catalyst. Heat to 50°C under normal pressure, ...

Example Embodiment

[0033] Example 3: Preparation of neoprene latex adhesive 3 modified by ternary copolymerization

[0034] Ingredients formula:

[0035] Weigh 100kg of neoprene latex, 90kg of methyl methacrylate, 90kg of butyl acrylate, 8kg of emulsifier (octylphenol polyoxyethylene ether), catalyst (the catalyst is hydroxydicumyl peroxide) -Tetraethylenepentamine redox, and the mass ratio of the oxidant component to the reducing agent component of the catalyst is 2:1) 5kg, thickening emulsion (rosin emulsion) 50kg, antioxidant (N-phenyl-β-naphthalene) Aqueous solution of amine) 2kg, thickener (polyvinyl alcohol) 4kg, preservative 1kg and zinc oxide 8kg.

[0036] The specific preparation steps are as follows:

[0037] (1) In a reactor equipped with a stirrer, condenser, and dropping funnel, first add neoprene latex, then add emulsifier, stir for 5 minutes, and then add methyl methacrylate, butyl acrylate and catalyst. Heat to 60°C under normal pressure, stir and react for 6 hours, and obtain grafted...

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Abstract

The invention relates to a terpolymer-modified neoprene latex adhesive and a preparation method thereof. The adhesive comprises the following components in parts by weight: 100 parts of neoprene latex, 10-90 parts of methyl methacrylate, 10-90 parts of butyl acrylate, 0.5-8 parts of emulsifier, 0.2-5 parts of catalyst, 10-50 parts of tackifying emulsion, 0.5-2 parts of anti-aging agent, 0.5-4 parts of thickener, 0.1-1 part of preservative and 2-8 parts of zinc oxide. The prepared adhesive has obviously lower film-forming temperature and higher initial viscosity, and satisfies the operating requirements of various climates. By adopting the redox catalytic system, the adhesive has the advantages of low synthesis temperature and high grafting ratio.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof, in particular to a three-component copolymerized modified neoprene latex adhesive and a preparation method thereof. Background technique [0002] A large number of solvent-based universal adhesives are used in the market for decoration and woodworking furniture production. According to the composition, they are divided into neoprene universal adhesives and SBS universal adhesives, both of which have the hazards of organic solvents. [0003] Conventional chloroprene (CR) latex adhesives are divided into two categories, one is the physical blend of chloroprene latex, and the other is the chemical graft modification of chloroprene latex and methyl methacrylate (MMA). The latter is the main one, and the latter has few application reports. Although the production process of the physical blending type is simple, the bonding materials are limited, and the adhesion to some new decorative m...

Claims

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Application Information

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IPC IPC(8): C09J151/04C09J157/02C09J161/14C09J193/04C09J11/04C09J11/06C08F279/02C08F220/14C08F220/16
Inventor 李有刚冉忠祥徐林柏兴华蒋乔波秦艳梅
Owner 重庆中科力泰高分子材料有限公司
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