Irradiation heat shrinkable materials are important protective materials and the demand in the industrial field continues to increase.

Irradiation heat shrinkable materials are polymer functional materials prepared using ionizing radiation technology. The polymer materials with linear structure are bombarded by ionizing radiation to generate polymer free radicals, which are then rebonded to each other to form a three-dimensional network structure. After the irradiation heat shrink material is heated, expanded, deformed and cooled to shape, it will return to the state before the first heating expansion when heated again. It has a unique memory effect, so it is also called a polymer shape memory material.

Radiation heat shrinkable material is a new type of intelligent material produced by combining polymer materials and radiation processing technology. It has the advantages of electrical insulation, high temperature resistance, corrosion resistance, anti-aging, etc. Due to its memory effect, pipes and films made of it are used as raw materials. materials, special-shaped materials, etc., which can be used as protective materials. They have low expansion pressure, large expansion ratio, and high radial shrinkage rate. After heating and shrinkage, they can be tightly wrapped on the surface of objects to achieve insulation, moisture-proof, anti-corrosion, anti-rust, sealing and It has functions such as connection and is an indispensable and important protective material in the industrial field.

Irradiation heat shrinkable materials are mainly used in electronics, electricity, communications, pipelines and other fields. In the electronics field, irradiation heat-shrinkable materials can be used in consumer electronics, home appliances, automotive electronics, etc.; in the pipeline field, irradiation heat-shrinkable materials can be used in oil and natural gas transmission pipeline networks, etc. In addition, irradiation heat shrinkable materials can also be used in nuclear power plants, rail transit, engineering machinery, instrumentation, aerospace, military industry and other fields.

According to the “In-depth Market Research and Investment Strategy Suggestions Report on Irradiation Heat Shrinkable Materials Industry 2022-2026” released by the Industrial Research Center , in 2021, the market size of my country’s radiation heat shrinkable materials will be approximately 18 billion yuan; it is expected that from 2022 to 2026, my country’s radiation heat shrinkable materials market will grow at an average annual compound growth rate of about 7.7%. By 2026, the market size will Reaching about 26.1 billion yuan. my country’s industry has a large scale and technology is constantly upgrading. As a protective material with excellent performance, irradiation heat shrinkable materials still have good development prospects in the future.

Radiation heat shrinkable materials can be irradiated using gamma rays produced by cobalt-60 or electron beams produced by electron accelerators. Among them, electron beam has a high dose rate and can be used not only in the production of heat shrinkable materials, but also in the manufacturing of cross-linked wires and cables; gamma rays have a low dose rate and are generally only used in the production of heat shrinkable materials. In actual production, in order to improve corporate profitability, many irradiation processing companies can produce both heat shrinkable materials and cross-linked wires and cables. Therefore, there are a large number of companies using electron beams to produce heat shrinkable materials globally. .

Industry analysts said that my country’s research on radiation heat shrinkable material technology began in the 1950s. After continuous development, at this stage As technology becomes increasingly mature, the gap between product quality and leading foreign companies continues to narrow. But overall, many companies in my country’s radiation heat shrinkable material industry still focus on the production of mid- to low-end products, and their core competitiveness is weak. With the technological upgrading of downstream industries, the high-end development of radiation heat shrinkable materials has become a Trends, leading companies will have greater development potential in the future.