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High-performance environmentally friendly chloroprene rubber adhesive by composite grafting

A neoprene and adhesive technology, applied in the direction of graft polymer adhesives, adhesives, adhesive types, etc., can solve the health threats of front-line production workers, poor adhesion of complex materials, unstable quality, etc. problems, to achieve the effect of promoting the atmosphere effect, strong comprehensive performance, and improving the conversion rate

Inactive Publication Date: 2019-02-01
ZHUHAI YUTIAN CHEM PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing grafted neoprene adhesive solvent systems use benzene, toluene, and xylene, which cause high pollution and pose a serious threat to the health of front-line production workers
Although there are a small amount of triphenyl-free grafted neoprene adhesives on the market, most of them have shortcomings such as unstable quality and poor adhesion to complex materials, which are difficult to meet the development requirements of the shoe industry.

Method used

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  • High-performance environmentally friendly chloroprene rubber adhesive by composite grafting
  • High-performance environmentally friendly chloroprene rubber adhesive by composite grafting
  • High-performance environmentally friendly chloroprene rubber adhesive by composite grafting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Add 50 parts of acetone, 150 parts of butanone, 150 parts of ethyl acetate, 120 parts of dimethyl carbonate, and 200 parts of methylcyclohexane in sequence, adjust the speed to 350r / min-450r / min, and stir evenly.

[0025] 2) Raise the temperature to 51-59°C, control the stirring speed at 550r / min-750r / min, add 100 parts of chloroprene rubber and 40 parts of chlorinated polypropylene, and stir for 2.5-3.5 hours.

[0026] 3) Keep the reflux temperature at 72-88°C and the stirring speed at 30-70r / min. Add 3 parts of initiator BPO, continue stirring for 15 minutes, and then add 100 parts of methyl methacrylate dropwise.

[0027] 4) After reacting for 1.5-3 hours, add 10 parts of maleic anhydride, when the viscosity reaches 3000-4000cps, the reaction is considered to be over.

[0028] 5) Lower the temperature to below 50°C, stir at a speed of 90r / min-150r / min, and add 8 parts of terminator BHT.

[0029] 6) Finally, add 15 parts of terpene phenolic resin T-803L and 15 pa...

Embodiment 2

[0031] 1) After sequentially adding 40 parts of acetone, 160 parts of butanone, 150 parts of ethyl acetate, 110 parts of dimethyl carbonate, and 210 parts of methylcyclohexane, adjust the speed to 350r / min-450r / min and stir evenly.

[0032] 2) Raise the temperature to 51-59°C, control the stirring speed at 550r / min-750r / min, add 100 parts of chloroprene rubber and 50 parts of chlorinated polypropylene, and stir for 2.5-3.5 hours.

[0033] 3) Keep the reflux temperature at 72-88°C and the stirring speed at 30-70r / min. Add 3 parts of initiator BPO, continue to stir for 15 minutes, and then add 80 parts of methyl methacrylate dropwise.

[0034] 4) After reacting for 1.5-3 hours, add 12 parts of maleic anhydride, when the viscosity reaches 3000-4000cps, the reaction is considered to be over.

[0035] 5) Lower the temperature to below 50°C, stir at a speed of 90r / min-150r / min, and add 8 parts of terminator BHT.

[0036] 6) Finally, add 14 parts of terpene phenolic resin T-803L an...

Embodiment 3

[0038] 1) Add 60 parts of acetone, 140 parts of butanone, 150 parts of ethyl acetate, 130 parts of dimethyl carbonate, and 190 parts of methylcyclohexane in sequence, adjust the speed to 350r / min-450r / min, and stir evenly.

[0039] 2) Raise the temperature to 51-59°C, control the stirring speed at 550r / min-750r / min, add 100 parts of chloroprene rubber and 30 parts of chlorinated polypropylene, and stir for 2.5-3.5 hours.

[0040] 3) Keep the reflux temperature at 72-88°C and the stirring speed at 30-70r / min. Add 3 parts of initiator BPO, continue to stir for 15 minutes, and then add 120 parts of methyl methacrylate dropwise.

[0041] 4) After reacting for 1.5-3 hours, add 8 parts of maleic anhydride, when the viscosity reaches 3000-4000cps, the reaction is considered to be over.

[0042] 5) Lower the temperature to below 50°C, stir at a speed of 90r / min-150r / min, and add 8 parts of terminator BHT.

[0043] 6) Finally, add 15 parts of terpene phenolic resin T-803L and 15 part...

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Abstract

The invention discloses a high-performance environmentally friendly chloroprene rubber adhesive by composite grafting and a preparation method thereof. The adhesive comprises the raw material components in parts by weight: 40-60 parts of acetone, 100-200 parts of butanone, 100-200 parts of ethyl acetate, 80-160 parts of dimethyl carbonate, 160-240 parts of methyl cyclohexane, 80-120 parts of chloroprene rubber, 118-182 parts of a grafted monomer, 2-4 parts of an initiator, 7-10 parts of a terminator and 20-40 parts of a tackifier. After acetone, butanone, ethyl acetate, dimethyl carbonate andmethyl cyclohexane are added in turn, chloroprene rubber, chlorinated polypropylene, the initiator, methyl methacrylate and maleic anhydride are added while stirring is performed and the temperature is controlled, when the viscosity reaches a certain value, the reaction is finished, the temperature is lowered, the stirring is performed, the terminator and the tackifier are added, the viscosity isadjusted, and then the material is discharged. The product obtained by the composite multi-component grafting modification of methyl methacrylate, chlorinated polypropylene and maleic anhydride has the advantages of green environmental protection, strong comprehensive performance and wide application range.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a high-performance environment-friendly neoprene adhesive through composite grafting and a preparation method thereof. Background technique [0002] Grafted neoprene adhesives are widely used in people's daily life, such as decoration, furniture manufacturing, shoemaking, bags and so on. Most of the existing grafted neoprene adhesive solvent systems use benzene, toluene, and xylene, which are highly polluting and pose a serious threat to the health of front-line production workers. Although there are a small amount of triphenyl-free grafted neoprene adhesives on the market, most of them have shortcomings such as unstable quality and poor adhesion to complex materials, which are difficult to meet the development requirements of the shoe industry. Contents of the invention [0003] In order to solve the above problems, the present invention provides a high-performance environm...

Claims

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Application Information

Patent Timeline
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IPC IPC(8): C09J151/04C09J151/06C08F291/04C08F222/06C08F220/14
CPCC08F255/023C08F279/02C09J151/04C09J151/06C08F222/06C08F220/14
Inventor 吴桂福林华玉邢凯华巫正山范端端肖尊楚李浩华王若莘潘滴云李春花周国斌郑小冰
Owner ZHUHAI YUTIAN CHEM PROD
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