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High-etherification modified high-performance adhesive and preparation process thereof

A preparation process and high-performance technology, applied in the field of rubber additives, can solve the problem of tire wear resistance, safety, adhesive bonding activity, aging resistance, tear resistance, etc. No high problems, to achieve the effect of improving wear resistance, improving adhesive performance, and increasing the content of bound formaldehyde

Inactive Publication Date: 2019-08-09
JIANGSU GUOLI CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to respond to the "green, intelligent and clean" production slogan advocated by the country, meet the urgent needs of domestic tire raw materials, promote the product upgrading of my country's rubber additives industry, and improve the local ecological environment, a kind of waste water can be realized. Zero discharge, There is an urgent need for a new adhesive process that meets emission standards; at the same time, the adhesive bonding performance of the adhesive bonding system in the traditional process is not high, and the bonding activity, aging resistance, and tear resistance of the adhesive are still not ideal. , which in turn affects the wear resistance and safety of the tire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-etherification modified high-performance adhesive, comprising: 100 parts of natural rubber, 45 parts of melamine formaldehyde resin, 25 parts of triphenylmethane triisocyanate, 4 parts of mineralized nano-powder in parts by weight , 2 parts of magnesium oxide, 1 part of initiator, 1 part of anti-aging agent, 1 part of antioxidant, 870 parts of solvent;

[0027] Wherein, described melamine formaldehyde resin adopts following process to make:

[0028]1) In 100g of melamine, add 195g of solid formaldehyde and mix well, then add 225g of 37% formaldehyde solution, and add sodium hydroxide solution to adjust the pH value to 9.5, and react at a temperature of 60°C for 0.5h; then Add 40g methanol and 85g di-tert-butylbenzothiazole, sonicate for 0.5h, then cool to 35°C; then add 160g methanol, and add concentrated sulfuric acid to adjust the pH value to 4.5, place the coil, and then start to drop 60g of Methylal, during which the pulsed electromagnetic field treatment wa...

Embodiment 2

[0039] A high-etherification modified high-performance adhesive, comprising: 100 parts of natural rubber, 65 parts of melamine formaldehyde resin, 35 parts of triphenylmethane triisocyanate, 10 parts of mineralized nanometer powder in parts by weight , 5 parts of magnesium oxide, 2 parts of initiator, 2 parts of anti-aging agent, 2 parts of antioxidant, 930 parts of solvent;

[0040] Wherein, described melamine formaldehyde resin adopts following process to make:

[0041] 1) In 100g of melamine, add 195g of solid formaldehyde and mix well, then add 225g of 37% formaldehyde solution, and add sodium hydroxide solution to adjust the pH value to 9.5, and react at a temperature of 75°C for 0.8h; then Add 40g methanol and 85g di-tert-butylbenzothiazole, sonicate for 0.5h, then cool to 42°C; then add 160g methanol, and add concentrated sulfuric acid to adjust the pH value to 4.5, place the coil, and then start dropping 67g of Methylal, during which pulsed electromagnetic field treat...

Embodiment 3

[0052] A high-etherification modified high-performance adhesive, comprising: 100 parts of natural rubber, 80 parts of melamine formaldehyde resin, 40 parts of triphenylmethane triisocyanate, 12 parts of mineralized nanometer powder in parts by weight , 7 parts of magnesium oxide, 3 parts of initiator, 3 parts of anti-aging agent, 3 parts of antioxidant, 960 parts of solvent;

[0053] Wherein, described melamine formaldehyde resin adopts following process to make:

[0054] 1) In 100g of melamine, add 195g of solid formaldehyde and mix well, then add 225g of 37% formaldehyde solution, and add sodium hydroxide solution to adjust the pH value to 9.5, and react for 1h at a temperature of 85°C; then add 40g of methanol and 85g of di-tert-butylbenzothiazole were sonicated for 0.5h, then cooled to 45°C; then 160g of methanol was added, and concentrated sulfuric acid was added to adjust the pH value to 4.5, and the coil was placed, followed by the dropwise addition of 70g of formazan ...

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Abstract

The invention discloses a high-etherification modified high-performance adhesive and a preparation process thereof, wherein the adhesive comprises, by weight, 100 parts of natural rubber, 45-80 partsof a melamine formaldehyde resin, 25-40 parts of triphenyl methane triisocyanate, 4-12 parts of mineralized nanometer powder, 2-7 parts of magnesium oxide, 1-3 parts of an initiator, 1-3 parts of an anti-aging agent, 1-3 parts of an antioxidant, and 870-960 parts of a solvent. According to the present invention, the adhesive has improved bonding activity, improved aging resistance and improved tear strength so as to improve the wear resistance and the safety of the tire.

Description

technical field [0001] The invention relates to the technical field of rubber additives, in particular to a high-etherification modified high-performance adhesive and a preparation process thereof. Background technique [0002] At present, my country has become a big country in the global rubber additives industry and tire industry, with rubber consumption and tire output ranking first in the world. According to the statistics of the China Rubber Association in 2018, the average annual growth rate of my country's rubber additives industry from 2011 to 2017 reached It is expected that the average annual growth rate will reach about 8% in the next five years. Among them, the green rate of rubber additives has reached more than 92%. In 2018 and beyond, the development direction of China's rubber additives industry will still be based on environmental protection, Focus on safety and energy saving to develop green chemical industry, strengthen technological innovation, and promote ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L61/32C08K3/22C08K3/26C08G12/42
CPCC08G12/427C08K2003/222C08K2003/2241C08K2201/011C08L7/00C08L61/32C08K3/22C08K3/26
Inventor 胡立新郎旭东宗红兴谈建新
Owner JIANGSU GUOLI CHEM TECH
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