Anticorrosive tape Role prominence
Polyethylene adhesive tape is a non-metallic material that can transfer the same or dissimilar material surface tightly and can meet the requirements of certain physical and chemical properties. Therefore, it is also called adhesive, adhesive and adhesive.
Polyethylene adhesive tape is mainly made of sticky material, combined with various curing agents, plasticizers, fillers, solvents, preservatives, stabilizers, coupling agents and other auxiliaries. Polyethylene adhesive tape used mostly comes from natural substances, such as starch, dextrin, bone glue, fish glue and so on. It is difficult to meet the needs of various uses because of its single composition and poor applicability. With the appearance of synthetic polymers, synthetic resin polyethylene adhesive tape has been developed for use in various adhesive occasions. In recent years, with the rapid development of materials development, various polyethylene adhesive tapes that are more suitable for application have come out, which has greatly enriched the polyethylene adhesive tape market.
Nowadays, the application of polyethylene adhesive tape has penetrated into all fields of national economy. Especially in the field of packaging, the appearance of polyethylene adhesive tape is everywhere. It can be said that polyethylene adhesive tape and packaging are two independent and interdependent intimate industries, and the two sides are driving each other and promoting each other.
With the continuous and rapid development of the world industrialization, the whole industrial chain has been pushed forward. In many cases, polyethylene adhesive tape can effectively replace some mechanical joints and adhesive stitches at the interfaces. It has become an effective energy saving material in the packaging process, which simplifies process, saves energy, reduces costs and improves economic benefits. Therefore, polyethylene adhesive tape as an independent industry with a complete production chain, as well as a special auxiliary industry in the packaging industry, plays an indispensable role in the entire packaging industry, and has a profound and far-reaching impact on the technological progress of packaging and related industries, as well as the research and development of products. Therefore, the development and production of new types of polyethylene adhesive tape with better quality and better performance has also become the research field and scientific research activities that the industry is paying more and more attention in the field of packaging. This has also promoted the development and growth of polyethylene adhesive tape industry to a large extent.
The rapid development of polyethylene adhesive tape industry has provided many excellent new adhesive species for the society, but at the same time, it has also brought new pollution problems to the environment. At present, the function and application of polyethylene adhesive tape have been widely valued, but the environmental problems of polyethylene adhesive tape are often overlooked. Whether environmental protection has become the bottleneck of further development of polyethylene adhesive tape has become a pressing matter of the moment to solve its environmental pollution problem.
Environmental protection is becoming more and more important in today's environment. The producer is pushing the environment-friendly green polyethylene adhesive tape. Users are also eager to use non-toxic harmless polyethylene adhesive tape. The environmental requirements for polyethylene adhesive tape will be more stringent. In response to the reality of environmental deterioration and the change of market demand, enterprises and units with certain scientific research organization capacity have invested a lot of manpower and material resources to develop new environmentally friendly production technologies and production of products, and some enterprises that are not equipped with conditions have introduced more environmentally friendly production equipment or products with a positive attitude. In the environmental competition of wheels, business opportunities can be preempted.
At present, China's polyethylene adhesive tape production enterprises have reached more than 1500, with more than 3000 varieties, which has become one of the fast developing key industries in China's chemical industry. Since the development of polyethylene adhesive tape in addition to its own performance improvement, it is more important to meet the long-term development goals and vigorously develop green and environment-friendly products.
Driven by various factors such as environmental protection, health and safety, polyurethane polythene tape, which is widely used in shoes, packaging, building, automobile and other fields, has begun to develop towards environmentally friendly and high performance in terms of solvent free, water based and reactive hot-melt, as well as other polyethylene adhesive tape, so as to gradually replace VOC high toxic products. However, solvent polyurethane polythene tape has some properties which are superior to other products, so it is still used in some fields, but it can only be replaced with time.
In developed countries, almost all of the rubber used for shoemaking is polyurethane polythene tape, and the building sealant mainly adopts silicone polythene tape and polyurethane polyethylene adhesive tape. All the composite films are made of polyurethane polyethylene adhesive tape, and polyurethane polyethylene adhesive tape is also used for tape and other special polyethylene adhesive tape. Polyurethane polyethylene adhesive tape is considered to be one of the developing potential adhesives in China because of its excellent performance.
Alcohol soluble polyurethane polythene tape is a polyurethane polyethylene adhesive tape developed in recent years with ethanol as solvent. Although the alcohol soluble polyurethane polyethylene tape has the environmental friendly advantages of free isocyanate monomer and reduced production cost, the development of alcohol soluble polyurethane polythene tape is not optimistic, though the alcohol soluble polyurethane polyurethane is the best. The adhesive tape has taken a step in environmental protection, but strictly speaking, it is not a fully environment-friendly polyethylene adhesive tape, because ethanol is also an organic solvent. It is only in combination with the current market situation in China and the varieties which are difficult to find substitute at present. Therefore, the alcohol soluble polyurethane polyethylene adhesive tape will still be used as a general industrial material in the near future.
In recent years, the hot-melt adhesive with fast growing demand in China has a bright future because it does not use organic solvents, and has fast construction and good bonding effect. In addition to the traditional EVA hot melt adhesive, the market should also actively develop new polyester and polyamide hot melt adhesives. At present, some foreign companies produce urea formaldehyde adhesive with low formaldehyde emission in China, and support large-scale timber processing plants.
At present, a large number of environment-friendly solvent-free polyethylene adhesive tape is widely used abroad.Solvent-free means that polyethylene adhesive tape does not contain solvents, and does not cause pollution and harm due to volatilization without solvent to the atmosphere. The vast majority of epoxy adhesive, anaerobic adhesive, cyanoacrylate adhesive, oxygen modified acrylate structure polyethylene adhesive tape, solvent free polyurethane adhesive and UV curable polyethylene adhesive tape are all solvent-free varieties. The solvent-free polyurethane polyethylene adhesive tape is suitable for all kinds of plastic composite packaging. It also has good adhesive effect on aluminum foil. Its resistance to content and high temperature cooking can also be the same as that of ester soluble polyurethane polythene tape, and its peel strength is high.
Waterborne polyethylene adhesive tape is popular for non flammable, non toxic, non polluting and product adaptability.For example, the products of water-based paste boxes, polyethylene adhesive tape series, water-based laminating polyethylene adhesive tape products produced by Zhengzhou You Jia Packaging Technology Co., Ltd. have been well received by the market, and sales have been good. However, the disadvantages of waterborne polyethylene adhesive tape are slow drying speed, poor water resistance, poor frost resistance, high cost and energy consumption. In the next 10 years, the polyurethane polyurethane adhesive tape can not be completely replaced. Therefore, in the future production and development process, the solid part of waterborne polyethylene adhesive tape should be increased, and the drying speed should be accelerated. The crosslinking method should be adopted to improve the drying speed and water resistance, so as to expand its application scope and market share.
In the next few years, our country will vigorously research and develop new products of high tech, high added value and high performance polyethylene adhesive tape, such as waterborne polyurethane adhesive tape, water-based neoprene polyethylene adhesive tape, high performance and high quality pressure sensitive adhesive and products, VAE (vinyl acetate vinyl) emulsion, EVA (ethylene vinyl acetate). Resin, SIS (styrene isoprene styrene) resin, etc., will also focus on the development of environmentally-friendly, energy-saving polyethylene adhesive tape to follow the market development law and human survival law.
Polyethylene adhesive tape industry has been developing rapidly and fiercely since the beginning. The entire industry has been thriving and thriving under the rigorous test of the market. At the same time, in its own development and improvement process, it has also promoted the innovation and development of many industries, and its role in the packaging industry has become more prominent.
It is believed that with the continuous progress of science and technology and the continuous development and creation of new technologies and new products, the cooperation between polyethylene adhesive tape and packaging industry will become more and more close, creating more social and economic values for the society, leading to broader industrial links, opening up new areas of refinement, and bringing more practical results to the improvement of people's living standards. Convenience. Polyethylene anticorrosive adhesive tape manufacturer