High-temperature-resistant butyl pressure sensitive adhesive and preparation method

A high-temperature-resistant, pressure-sensitive adhesive technology, applied in adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the heat resistance, soil stress and shear resistance of asphalt modified butyl pressure-sensitive adhesives Poor cutting ability, wrinkling and sagging, affecting the anti-corrosion service life of cold-wound tapes, etc., to achieve the effects of improving cohesive strength and soil shear resistance, improving aging resistance, and good heat resistance
CN110358476AActive Publication Date: 2019-10-22廊坊市中油嘉昱防腐技术有限公司
15 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
廊坊市中油嘉昱防腐技术有限公司
Publication Date
2019-10-22

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The application provides a high-temperature-resistant butyl pressure sensitive adhesive and a preparation method, wherein the high-temperature-resistant butyl pressure sensitive adhesive comprises thefollowing raw materials by weight: 20-30% of butyl rubber, 5-15% of SEBS, 10-15% of polyisobutylene with a molecular weight of 70000-100000, 10-15% of polyisobutylene with a molecular weight of 30000-60000, 15-25% of a tackifying resin, 20-40% of a filler, and 0.5-1.5% of an antioxidant. According to the present invention, the high-temperature-resistant butyl pressure sensitive adhesive does notcontain asphalt components, has good heat resistance, and has excellent adhesion under normal temperature and high temperature conditions; by using SEBS with high hard section glass transition temperature and high mechanical property, the shear strength of the butyl pressure sensitive adhesive at a high temperature is improved while the aging resistance and the corrosion resistance of the butyl pressure sensitive adhesive are improved; and the used inorganic filler has reinforcing effect so as to improve the cohesive strength and the soil shear resistance of the butyl pressure sensitive adhesive.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present application relates to the technical field of butyl pressure-sensitive adhesives, in particular to a high-temperature-resistant butyl pressure-sensitive adhesive and a preparation method thereof. Background technique

[0002] 3PE and heat-shrinkable joint joint structure is the preferred structure for the external anti-corrosion layer of buried steel pipelines in China, and it has been used in China for nearly 20 years. With the passage of time, a considerable part of oil and gas pipelines (including stations) in China have entered the middle-aged and old age, the pipeline anti-corrosion layer has aged and failed, and the failure of the external anti-corrosion layer of buried pipelines has gradually increased. In recent years, many 3PE anti-corrosion layers have been discovered The problem of peeling failure, severe metal substrates and even corrosion have brought hidden dangers to the safe and stable operation of pipeline oil and gas produ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More