Hot-melt pressure sensitive adhesive for waterproof rolls, and preparation method thereof

A technology of hot-melt pressure-sensitive adhesive and waterproof membrane, applied in the direction of pressure-sensitive film/sheet, adhesive, adhesive type, etc. Adhesive ability, improved adhesion, low price effect

Inactive Publication Date: 2019-04-30
山东聚东新材料有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the use of non-polar polymers in thermoplastic polymers, the adhesion to some polar substrates such as paper, wood, and concrete is not strong, especially when used in waterproof membranes, due to the adhesion to the substrate Defects lead to leakage, water stringing and other phenomena
It is usually improved by adding a polar tackifying resin, which is easy to operate, but the introduction of the tackifying resin will affect the cohesion of the adhesive, so the improvement effect is limited
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  • Hot-melt pressure sensitive adhesive for waterproof rolls, and preparation method thereof

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preparation example Construction

[0042]The embodiment of the present invention provides a hot-melt pressure-sensitive adhesive for waterproof coiled material and its preparation method, comprising: components containing the following content: thermoplastic elastomer: 5-30%; saturated thermoplastic elastomer: 5-15%; Viscose resin: 25-50%; Plasticizer: 15-40%; Silicone additive: 0.5-5%; Stabilizer: 0.5-5%. Wherein, the thermoplastic elastomer is at least one of polystyrene-butadiene-styrene (SBS) and polystyrene-isoprene-styrene (SIS); the saturated thermoplastic elastomer is polystyrene-hydrogenated One of butadiene-styrene (SEBS) and polystyrene-hydrogenated isoprene-styrene (SEPS), the content of styrene in the above-mentioned block copolymers is all controlled at 15%-30%. The main cohesion and elasticity are provided by the thermoplastic elastomer and the saturated thermoplastic elastomer as the skeleton material of the adhesive, and the present invention optimizes such properties through the compounding of...

Embodiment 1

[0064] Heat the reactor to 140°C, add 30 parts of paraffin oil, start stirring, raise the temperature to 160°C, add 30 parts of SIS, 5 parts of SEBS, 1 part of pentaerythritol β-dodecylthiopropionate, 2,6- 2 parts of di-tert-butyl-p-cresol were stirred to dissolve, and 30 parts of C5 petroleum resin and 10 parts of terpene resin were added in batches. After it is completely melted, add 4 parts of silicone additives, 0.5 parts of 2-(2'hydroxy-3',5'-di-tert-phenyl)-5-chlorinated benzotriazole, and stir to mix evenly. The volatile gas is discharged under reduced pressure for half an hour, and the material is discharged and cooled to obtain a hot-melt pressure-sensitive adhesive for waterproof coiled material.

Embodiment 2

[0066] Heat the reactor to 150°C, add 25 parts of naphthenic oil, start stirring, raise the temperature to 160°C, add 20 parts of SIS, 5 parts of SBS, 10 parts of SEPS, β(3,5-di-tert-butyl-hydroxyphenyl ) 0.5 parts of pentaerythritol propionate, 1 part of 2,5-di-tert-butylhydroquinone, stir to dissolve, add 10 parts of C5 petroleum resin, and 25 parts of terpene resin in batches. After it melted completely, add 2 parts of silicone additive, 2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-5-( 1 part of octyloxy)phenol, stir to make it evenly mixed. The volatile gas is discharged under reduced pressure for half an hour, and the material is discharged and cooled to obtain a hot-melt pressure-sensitive adhesive for waterproof coiled material.

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Abstract

The invention provides a hot-melt pressure sensitive adhesive for waterproof rolls, and a preparation method thereof, and belongs to the technical field of adhesives. The problems of poor heat resistance and poor adhesion to a concrete substrate of existing hot-melt pressure sensitive adhesive for waterproof rolls are solved. The hot-melt pressure sensitive adhesive for waterproof rolls comprises5-30 wt% of a thermoplastic elastomer, 5-15 wt% of a saturated thermoplastic elastomer, 25-50 wt% of tackifying resin, 15-40 wt% of a plasticizer, 0.5-5 wt% of an silicone additive and 0.5-5 wt% of astabilizer, wherein the silicone additive is prepared by a controlled condensation reaction of different silane monomers. The hot-melt pressure sensitive adhesive for waterproof rolls has the advantages of good heat resistance and good adhesion to the concrete substrate, and the preparation method of the pressure sensitive adhesive has the advantages of simple preparation process, low cost and good economic values.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a pressure-sensitive adhesive for waterproof coiled material and a preparation method thereof Background technique [0002] Pressure-sensitive adhesive is a kind of self-adhesive substance, which can be firmly bonded to the adherend by forming van der Waals force on the surface of the two objects only by applying a small pressure. According to different bearing media, pressure-sensitive adhesives can be divided into four types: solvent type, emulsion type, light-curing type and hot-melt type (see Pang Yanmei et al., "China Adhesives", 2018, 27: 51.). Among them, the hot-melt pressure-sensitive adhesive integrates the dual characteristics of hot-melt and pressure-sensitive. It is coated in a molten state, and can be bonded by applying a small finger pressure after cooling and solidification. It can be widely used in packaging, binding, and heat treatment. Sealing and pressure s...

Claims

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Application Information

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IPC IPC(8): C09J191/06C09J191/00C09J153/02C09J157/02C09J145/00C09J183/06C09J193/04C09J11/08C09J7/38
CPCC08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L2207/04C09J11/08C09J145/00C09J191/00C09J191/06C09J7/38C08L53/025C08L53/02C08L57/02C08L45/00C08L83/06C08L91/00C08L93/04
Inventor 崔志勇王生杰侣庆法崔文强郭方飞崔丙顺夏永清
Owner 山东聚东新材料有限责任公司
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