Hot-melt pressure-sensitive adhesive with high heat resistance for macromolecular waterproof roll and preparation method thereof

A hot-melt pressure-sensitive adhesive and polymer waterproof technology, which is applied in the field of materials, can solve the problems of the decrease of the cohesive strength of the hot-melt pressure-sensitive adhesive, the decrease of the adhesive force of the polyethylene sheet, and the impact on the waterproof effect, so as to achieve anti-ultraviolet aging Excellent performance, improved bonding performance, easy production and coating effects

Active Publication Date: 2019-01-18
江苏雨中情防水材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is that the existing non-bitumen-based self-adhesive waterproof coiled material uses hot-melt pressure-sensitive adhesives under high-temperature conditions in summer, and the cohesive strength of the hot-melt pressure-sensitive adhesive itself decreases, and it is bonded to polyethylene sheets. The force is reduced, and the phenomenon of warping of the overlapping edges is prone to occur, which affects the overall waterproof effect. The invention provides a pressure-sensitive adhesive with excellent high temperature and excellent adhesion and a preparation method thereof

Method used

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  • Hot-melt pressure-sensitive adhesive with high heat resistance for macromolecular waterproof roll and preparation method thereof
  • Hot-melt pressure-sensitive adhesive with high heat resistance for macromolecular waterproof roll and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Heat the equipment to 140°C, add 23.5kg polyisobutylene A, 5.8kg polyisobutylene B and 6.0g plasticizer, stir evenly and keep warm to 120°C, then add 35kg composite thermoplastic elastomer, 3.5kg butyl rubber and heat up to 160°C , keep the stirring frequency at 50HZ and stir for 35min until the composite thermoplastic elastomer and butyl rubber are completely melted without particles. Add 24kg of tackifying resin and 1.0kg of stabilizer to keep warm at 150°C and stir for 40 minutes, turn on the vacuum pump for 20 minutes to remove air bubbles in the system, and then discharge.

[0025] In this embodiment, the composition of the composite elastomer SIS and SEPS, SIS:SEPS=1:1 in the composite elastomer, wherein the styrene content of SIS is 15%-30%, and the styrene content of SEPS is 10% %-30%. The tackifying resin is petroleum resin. The plasticizer is naphthenic oil. Stabilizer is the combination of antioxidant, ultraviolet absorber and light stabilizer, and ratio i...

Embodiment 2

[0027] Heat the equipment to 140°C, add 23.5kg polyisobutylene A, 5.8kg polyisobutylene B and 6.0g plasticizer, stir evenly and keep warm to 140°C, then add 35kg composite thermoplastic elastomer, 3.5kg butyl rubber, 0.4kg bismuth Raise the temperature of the joint agent to 160°C, keep the stirring frequency at 50HZ and stir for 35min until the composite thermoplastic elastomer and butyl rubber are completely melted without particles. Add 21kg of tackifying resin and 1.3kg of stabilizer to keep warm at 150°C and stir for 40 minutes, turn on the vacuum pump for 20 minutes to remove air bubbles in the system, and then discharge.

[0028] In this embodiment, the composition of the composite elastomer SIS and SEPS, SIS:SEPS=1:1 in the composite elastomer, wherein the styrene content of SIS is 15%-30%, and the styrene content of SEPS is 10% %-30%. The tackifying resin is petroleum resin. The plasticizer is one or more combination of naphthenic oil, paraffin oil and rubber extende...

Embodiment 3

[0030] Heat the equipment to 130°C, add 23.5kg polyisobutylene A, 5.4kg polyisobutylene B and 8.0kg plasticizer, stir evenly and keep warm to 160°C, then add 40kg composite thermoplastic elastomer, 3.5kg butyl rubber, 0.8kg Raise the temperature of the joint agent to 170°C, keep the stirring frequency at 50HZ and stir for 45min until the composite thermoplastic elastomer and butyl rubber are completely melted without particles. Add 21kg of tackifying resin and 1.0kg of stabilizer to keep warm at 150°C and stir for 40 minutes, turn on the vacuum pump for 20 minutes to remove air bubbles in the system, and then discharge.

[0031]In this embodiment, the composition of the composite elastomer SIS / SEPS and SIS / SEBS, in the composite elastomer, SIS:SEPS:SEBS=1:1:0.5, wherein the styrene content of SIS is 10%-30% , The styrene content of SEPS is 15%-30%, and the styrene content of SEBS is 10%-40%. The tackifying resin is a terpene resin. The plasticizer is one or more combination ...

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Abstract

The invention discloses a hot-melt pressure-sensitive adhesive with high heat resistance for a macromolecular waterproof roll and a preparation method thereof. The hot-melt pressure-sensitive adhesiveis prepared from the following raw materials by weight percent: 30%-40% of compound thermoplastic elastomer, 3%-10% of butyl rubber, 20%-25% of polyisobutene A, 5%-10% of polyisobutene B, 20%-26% oftackifying resin, 3%-8% of plasticizer, 0.8%-2% of stabilizer and 0.5%-1% of coupler. The hot-melt pressure-sensitive adhesive disclosed by the invention has the characteristics of high viscidity, high peeling strength under high temperature, excellent thermo-oxidative aging and ultraviolet aging resistance and simple production process.

Description

technical field [0001] The invention relates to a high heat-resistant hot-melt pressure-sensitive adhesive and a preparation method thereof, belonging to the field of materials. technical background [0002] Non-asphalt-based self-adhesive waterproofing membrane adopts pre-paved anti-adhesive construction technology, and is widely used in key projects such as subways and pipe galleries. Since the main material of non-asphalt-based self-adhesive waterproofing membrane is made of polyethylene, it has certain shrinkage. When used at high temperature, uneven shrinkage will occur and local warping will occur. The hot-melt pressure-sensitive adhesive used to bond polyethylene materials must have high heat resistance and high adhesion under high temperature conditions in summer, so as to avoid poor bonding due to high summer temperatures and affect the overall waterproof effect. Therefore, a It is an imminent research topic to develop a high heat-resistant hot-melt pressure-sensit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J11/06C09J11/08
Inventor 耿进玉李宏伟田益张鸣
Owner 江苏雨中情防水材料有限责任公司
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