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Instant-drying solvent-free adhesive for PVC (polyvinyl chloride) pipeline bonding

An adhesive and solvent-free technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of poor heat and humidity resistance, high brittleness, etc., and achieve good migration resistance, heat and humidity resistance, and adhesion The effect of high bonding strength

Active Publication Date: 2014-12-03
广东时利和汽车材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the shortcomings of cyanoacrylate adhesives in terms of poor heat and humidity resistance and high brittleness, and especially provide an instant-drying solvent-free adhesive for PVC pipe bonding

Method used

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  • Instant-drying solvent-free adhesive for PVC (polyvinyl chloride) pipeline bonding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 (by weight percentage):

[0029] Ethyl cyanoacrylate 83.85%

[0030] Chlorinated polyvinyl chloride resin 8%

[0031] Terminated vinyl nitrile rubber VTBNX 1300×43 1%

[0032] Polymethylmethacrylate 4%

[0033] Dioctyl phthalate 2%

[0034] Fumed silica 1%

[0035] Sulfur dioxide 0.05%

[0036] Hydroquinone 0.1%.

[0037] Weigh ethyl cyanoacrylate, chlorinated polyvinyl chloride resin, vinyl-terminated nitrile rubber VTBNX 1300×43, sulfur dioxide, and hydroquinone respectively according to the weight percentages listed in Example 1, and mechanically stir at 60° C. for 60 Minutes, the stirring rate is 800 rpm, then add polymethyl methacrylate, dioctyl phthalate, fumed silica, and continue stirring for 20 minutes, the stirring rate is 800 rpm, to obtain instant drying for PVC pipe bonding Solvent-free adhesive, cool to room temperature, and perform performance test after standing for 24 hours.

Embodiment 2

[0038] Embodiment 2 (by weight percentage):

[0039] Methyl cyanoacrylate 83.43%

[0040] Chlorinated polyvinyl chloride resin 7%

[0041] Terminated vinyl nitrile rubber VTBNX 1300×43 1%

[0042] Terminated vinyl nitrile rubber VTBNX 1300×33 0.5%

[0043] Polymethylmethacrylate 4%

[0044] Dioctyl phthalate 2%

[0045] Fumed silica 2%

[0046] Sulfur trioxide 0.02%

[0047] Hydroquinone 0.05%.

[0048] Weigh methyl cyanoacrylate, chlorinated polyvinyl chloride resin, vinyl-terminated nitrile rubber VTBNX 1300×43, vinyl-terminated nitrile rubber VTBNX 1300×33, sulfur trioxide, respectively, according to the weight percentages listed in Example 2. , hydroquinone, stirred mechanically at 60°C for 60 minutes, and the stirring rate was 800 rpm, then added polymethyl methacrylate, dioctyl phthalate, fumed silica and continued to stir for 20 minutes, and the stirring rate was 800 rpm, the instant-dry solvent-free adhesive for PVC pipe bonding was obtained, cooled to room...

Embodiment 3

[0049] Embodiment 3 (by weight percentage):

[0050] Butyl cyanoacrylate 84.9%

[0051] Chlorinated polyvinyl chloride resin 5%

[0052] Terminated vinyl nitrile rubber VTBNX 1300×33 1%

[0053] Polymethylmethacrylate 3%

[0054] Polybutylmethacrylate 3%

[0055] Dioctyl phthalate 1.5%

[0056]Fumed silica 1.5%

[0057] Sulfur dioxide 0.02%

[0058] Hydroquinone 0.08%.

[0059] Weigh butyl cyanoacrylate, chlorinated polyvinyl chloride resin, vinyl-terminated nitrile rubber VTBNX 1300 × 33, sulfur dioxide, and hydroquinone respectively according to the weight percentages listed in Example 3, and mechanically stir at 60°C for 60 Minutes, the stirring rate is 800 rpm, then add polymethyl methacrylate, polybutyl methacrylate, dioctyl phthalate, fumed silica, continue to stir for 20 minutes, the stirring rate is 800 rpm, to obtain Instant dry solvent-free adhesive for PVC pipe bonding, cool to room temperature, and perform performance test after standing for 24 hours. ...

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Abstract

The invention relates to an instant-drying solvent-free adhesive for PVC (polyvinyl chloride) pipeline bonding, which is prepared from the following components in percentage by weight: 70-96% of cyanoacrylate, 1-20% of chlorinated polyvinyl chloride resin, 0.5-10% of vinyl-terminated nitrile-butadiene rubber, 0.1-10% of plasticizer, 0.1-5% of thixotropic agent, 0.01-5% of anionic polymerization inhibitor and 0.01-5% of free radical polymerization inhibitor. The adhesive has the advantages of simple preparation technique, favorable damp-heat resistance, favorable aging resistance, favorable toughness, favorable migration resistance, high bonding strength for PVC and the like. The adhesive is environment-friendly and free of solvents, and thus, does not have solvent discharge; and the adhesive has favorable environment friendliness, and conforms to the human environment-friendly health requirements. The performance testing proves that the adhesive satisfies the requirements in national related industry technical standard.

Description

technical field [0001] The invention relates to an adhesive, in particular to an instant-drying solvent-free adhesive for bonding PVC pipes. Background technique [0002] As a new type of building material, polyvinyl chloride (PVC) pipes are more and more widely used in building drainage and sewage. At present, two PVC pipes are generally connected by adhesive bonding, most of which are made by adding some additives to chlorinated polyvinyl chloride resin solvent in dichloroethane, acetone, tetrahydrofuran and other solvents. The production process is simple and the bonding strength is good, so it is widely used. [0003] However, the organic solvents of the currently used PVC pipe adhesives are highly toxic, and a large amount of organic solvents remain on the PVC pipes, causing harm to construction workers and the surrounding environment. In addition, this type of adhesive requires high environmental temperature for construction. If the temperature is too low, the solven...

Claims

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Application Information

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IPC IPC(8): C09J4/04C09J4/06C09J11/04C09J11/06
Inventor 吴子刚高之香李建武张卫军王永明李士学李程
Owner 广东时利和汽车材料有限公司
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