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High-temperature-aging-resistant adhesive for magic tapes and manufacturing method thereof

A manufacturing method and high-temperature-resistant technology, applied in adhesives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problem that the high-temperature aging resistance of Velcro special glue is not good enough, and it is difficult to meet application requirements, etc. Problems, to achieve excellent UV aging resistance, UV resistance and improved adhesion, improve the effect of adhesion

Inactive Publication Date: 2021-11-02
ZHEJIANG HEYI WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-temperature aging resistance of the Velcro special glue obtained by this patented technology is still not good enough, and it is difficult to meet the application requirements of high temperature, outdoor and other special environmental conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for manufacturing high-temperature aging-resistant Velcro glue, the specific steps are as follows:

[0026] (1) Add 1g of double-shell hollow nano-zinc oxide into 5g of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stir and react at 95°C for 7 hours, centrifuge to collect the precipitate, and obtain the obtained The modified double-shell hollow nanometer zinc oxide;

[0027] (2) Preheat 100g of adipic acid to 130°C; then slowly add 25g of 1,4-cyclohexanediamine dropwise under the protection of nitrogen, then slowly add 6g of modified double-shell hollow nano-zinc oxide, 2g of polyamino nano-di Silicon oxide; then heated to 230°C while stirring, and kept stirring for 3 hours; finally kept the temperature constant and depressurized to 0.01Mpa to polycondense for 0.5 hours to remove water and unreacted 1,4-cyclohexanediamine, and cooled to 140°C Blowing, to obtain the modified low-molecular polyamide;

[0028] (3) Finally, 25g of polyethersulfone resin, 5...

Embodiment 2

[0032] A method for manufacturing high-temperature aging-resistant Velcro glue, the specific steps are as follows:

[0033] (1) Add 1g of double-shell hollow nano-zinc oxide to 7g of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stir and react at 85°C for 9 hours, centrifuge to collect the precipitate, and obtain the obtained The modified double-shell hollow nanometer zinc oxide;

[0034] (2) Preheat 100g of adipic acid to 120°C; then slowly add 35g of 1,4-cyclohexanediamine dropwise under the protection of nitrogen, then slowly add 4g of modified double-shell hollow nano-zinc oxide, 3g of polyamino nano-di Silicon oxide; then heat to 220°C while stirring, keep stirring for 4 hours; finally keep the temperature constant and reduce the pressure to 0.01Mpa to polycondense for 0.5 hours to remove water and unreacted 1,4-cyclohexanediamine, and cool down to 130°C Blowing, to obtain the modified low-molecular polyamide;

[0035] (3) Finally, mix and melt 25g of polyethersu...

Embodiment 3

[0039] A method for manufacturing high-temperature aging-resistant Velcro glue, the specific steps are as follows:

[0040] (1) Add 1g of double-shelled hollow nano-zinc oxide into 6g of N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, stir and react at 90°C for 8 hours, centrifuge to collect the precipitate, and obtain the obtained The modified double-shell hollow nanometer zinc oxide;

[0041] (2) Preheat 100g of adipic acid to 125°C; then slowly add 30g of 1,4-cyclohexanediamine dropwise under the protection of nitrogen, then slowly add 5g of modified double-shell hollow nano zinc oxide, 2.5g of polyamino nano Silica; then heated to 225°C while stirring, and kept stirring for 3.5 hours; finally kept the temperature constant and decompressed to 0.01Mpa to polycondense for 0.5 hours to remove water and unreacted 1,4-cyclohexanediamine, and cooled to 135 °C discharge, to obtain the modified low-molecular polyamide;

[0042] (3) Finally, 20g of polyethersulfone resin, 5g ...

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Abstract

The invention provides a high-temperature-aging-resistant adhesive for magic tapes and a manufacturing method thereof. The manufacturing method includes the steps that double-shell hollow nano-zinc oxide is modified through N-(beta-aminoethyl)-gamma-aminopropyl methyl dimethoxy silane to obtain modified double-shell hollow nano-zinc oxide; then, adipic acid, 1, 4-cyclohexanediamine, the modified double-shell hollow nano zinc oxide and multi-amino nano silicon dioxide used as raw materials are subjected to a polymerization reaction to obtain modified low-molecular polyamide; and finally, polyethersulfone resin, the modified low-molecular polyamide, rosin resin and hydrogenated DCPD resin are mixed, melted and cooled, dibutyl phthalate is added, and heating and stirring are conducted. The adhesive for magic tapes has excellent high-temperature aging resistance and ultraviolet aging resistance, and is wide in market prospect.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a high-temperature aging-resistant Velcro glue and a manufacturing method thereof. Background technique [0002] Velcro is a commonly used connecting accessory, one side is small and soft fibers, and the other side is hard bristles with hooks. It is used in many fields such as clothing, shoes, sofas, car cushions, curtains, tents, and various military products. There are a wide range of applications. [0003] On the basis of ordinary Velcro, hot melt adhesive can be applied on the back of the Velcro tape, and then a layer of oily release paper can be pasted to obtain the adhesive Velcro. Hot melt adhesive is a solid soluble polymer that does not require solvents and does not contain moisture. It is solid at room temperature, and when heated to a certain temperature, it becomes a fluid and viscous liquid, which can be conveniently used for back adhesive Velcro manufacturin...

Claims

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Application Information

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IPC IPC(8): C09J181/06C09J11/08C09J11/04
CPCC09J181/06C09J11/08C09J11/04C08L2201/08C08K2201/011C08L77/06C08K9/06C08K7/24C08K7/26
Inventor 余建柱余建荣陈志坚姜明华余小郎
Owner ZHEJIANG HEYI WEAVING
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