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Rubber-type pressure-sensitive adhesive and its preparation method and application

A pressure-sensitive adhesive, rubber-type technology, used in adhesives, film/sheet adhesives, non-polymer adhesive additives, etc., can solve the impact of stable production quality control, adverse high-strength pressure-sensitive adhesives, Deterioration of the use effect and other problems, to achieve the effect of being conducive to production quality control, fewer types of materials, and improved cohesion

Active Publication Date: 2011-12-14
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned pressure-sensitive self-healing waterproof rubber materials all have the following disadvantages: 1) Too many ingredients are used in the formula, and the formula is relatively cumbersome, which has an adverse effect on the weighing of raw materials and the stable control of production quality
3) Oils with low viscosity, such as motor oil or paraffin oil or naphthenic oil, are used as plasticizers. Due to the low viscosity of these plasticizers, the addition amount is very sensitive to changes in strength, which is not conducive to obtaining high-strength pressure-sensitive adhesives. Moreover, it is not easy to control the quality stability; in addition, the extraction and migration of small molecular oils are also relatively large, and the effect of long-term immersion in an environment with water will deteriorate sharply

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] 100 parts by mass of butyl rubber (IIR),

[0106] 30 parts by mass of polyisobutylene (PIB),

[0107] 90 parts by mass of solid terpene resin A,

[0108] 70 parts by mass of liquid terpene resin,

[0109] 150 parts by mass of superfine kaolin;

[0110] After butyl rubber is masticated, superfine kaolin is added, and then solid terpene resin A is added. After mixing evenly, polyisobutylene and liquid terpene resin are added. After mixing evenly, a light-colored solvent-free non-vulcanized rubber pressure-sensitive adhesive is obtained. .

[0111] Refer to JC / T 924-2004 to measure the peel strength and shear strength of the pressure-sensitive adhesive.

[0112] The results showed that the peel strength was 1.86N / mm, and the shear strength was 2.73N / mm.

Embodiment 2

[0114] 100 parts by mass of butyl rubber (IIR),

[0115] 50 parts by mass of polyisobutylene (PIB),

[0116] 60 parts by mass of solid terpene resin A,

[0117] 50 parts by mass of liquid terpene resin,

[0118] 200 mass parts of superfine kaolin;

[0119] After butyl rubber is masticated, superfine kaolin is added, and then solid terpene resin A is added. After mixing evenly, polyisobutylene and liquid terpene resin are added. After mixing evenly, a light-colored solvent-free non-vulcanized rubber pressure-sensitive adhesive is obtained. .

[0120] Refer to JC / T 924-2004 to measure the peel strength and shear strength of the pressure-sensitive adhesive.

[0121] The results showed that the peel strength was 1.94N / mm, and the shear strength was 2.85N / mm.

Embodiment 3

[0123] 100 parts by mass of butyl rubber (IIR),

[0124] 70 parts by mass of polyisobutylene (PIB),

[0125] 30 parts by mass of solid terpene resin A,

[0126] 30 parts by mass of liquid terpene resin,

[0127] 250 mass parts of superfine kaolin;

[0128] After butyl rubber is masticated, superfine kaolin is added, and then solid terpene resin A is added. After mixing evenly, polyisobutylene and liquid terpene resin are added. After mixing evenly, a light-colored solvent-free non-vulcanized rubber pressure-sensitive adhesive is obtained. .

[0129] Refer to JC / T 924-2004 to measure the peel strength and shear strength of the pressure-sensitive adhesive.

[0130] The results showed that the peel strength was 1.84N / mm, and the shear strength was 2.81N / mm.

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Abstract

The invention provides a rubber type pressure-sensitive adhesive as well as a preparation method and an application thereof. The rubber type pressure-sensitive adhesive comprises the following substances in parts by weight: 100 parts of butyl rubber, 30-70 parts of polyisobutene, 30-90 parts of solid terpene resin, 30-70 parts of liquid terpene resin and 150-250 parts of superfine kaolin. The rubber type pressure-sensitive adhesive disclosed by the invention has high strength and shallow color, is the solvent-free unvulcanized rubber type pressure-sensitive adhesive and can be used as a pressure-sensitive adhesive in self-adhesion rubber waterstops used in the railway.

Description

technical field [0001] The invention relates to a rubber-type pressure-sensitive adhesive and its preparation method and application; in particular, it relates to a light-colored solvent-free non-vulcanized rubber-type pressure-sensitive adhesive and its preparation method and application. Background technique [0002] There are two types of rubber waterstops for railways: plastic and rubber. The rubber waterstop is made of ethylene propylene rubber, and the plastic material is EVA and ECB. Self-adhesive rubber waterstops are not yet widely used on railways. Compared with the ordinary rubber waterstop, the self-adhesive waterstop has an extra layer of self-adhesive layer, which can achieve a close fit with the concrete, so this type of waterstop has a much better sealing effect than the rubber waterstop. Ordinary rubber waterstop. Its application can effectively solve the probability of water channeling, leakage and other problems, and significantly reduce the losses caus...

Claims

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Application Information

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IPC IPC(8): C09J123/22C09J123/20C09J145/00C09J11/04C09J7/02
Inventor 贺春江党佳张国文裴顶峰杨维坚毛昆朋
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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