SBS Adhesive will become a rising star

China Drying Network News rubber adhesive has played a very important role in many areas of the national economy and in all aspects of daily life. Among them, neoprene adhesives and SBS (thermoelastic) adhesives are typical representatives. For these two leading products, Prof. Li Zidong, an advisor to the China Adhesives and Adhesive Tape Industry Association, proposed the direction of development.

Neoprene adhesives have led the way for years of glory in rubber adhesives because of their excellent performance, wide use, good durability, and affordable price. To date, there is no substitute for neoprene adhesives. The product is divided into solvent-based, water-based (emulsion) and bulk three categories, currently still in China with solvent-based neoprene adhesive dominant position, and it is difficult to reverse in the short term. However, solvent-based neoprene contains a large number of toxic, harmful, flammable and explosive organic solvents, which are strictly controlled by environmental protection and safety regulations.

Li Zidong affirmed: “As long as the neoprene adhesive is accelerated to water, this traditional product will be brilliantly reproduced. At present, the industry is struggling to improve the performance of water-based products and it has achieved remarkable results.”

Li Zidong took the development secret of neoprene adhesive as an example, corroborating this view. After entering the 21st century, the survival of neoprene adhesive once was at stake. The fundamental reason is that it contains a large number of toxic, explosive organic solvents. The implementation of the GB18583 mandatory standard has saved such products, so that not only has it not gone from bad to worse, but it has been rather obscure. In recent years, the statistical data of China's solvent-based neoprene adhesive production is a strong testimony: 156,000 tons in 2009, 165,000 tons in 2010, and 168,000 tons in 2011.

“The key to the sustainable development of neoprene adhesive is to be green and safe. Otherwise, even if the performance is excellent, the 'rabbit's tail will not be able to grow,' and even the best companies will break down.” Li Zidong said wickedly. "Waterborne neoprene is the future direction of development, it does not contain organic solvents, safety, non-toxic, non-polluting. But its problem is that the main raw materials rely on imports, the cost is too high, plus a long curing time and other reasons, in 2011 the country's production and marketing The volume is only about 1,500 tons. I hope the company will continue its research on materials and reduce the cost of products for market promotion."

For another rubber-based adhesive backbone, SBS-type adhesive, Li Zidong pointed out that its uniqueness is high solid content but low viscosity, early adhesive force is great, sticky time is still very long, available non-toxic Or low-toxic solvent manufacturing, from the solvent to the water type conversion has an inherent advantage. However, due to low heat resistance, poor aging resistance and poor durability, the market is indifferent. In recent years, the industry's colleagues have continued to improve. The selection of raw materials highlights novelty, the adjustment of formulas is more scientific and rational, the processes adopted are more advanced, and more emphasis is placed on the environmental protection of products. In 2011, the production and sales volume of this product reached 195,000 tons, which exceeded the 168,000 tons of neoprene adhesive. Obviously, the performance optimization of SBS adhesives will go a step further and strong development will become a rising star. He said: "You can believe that SBS will have a bright future."

Then he emphasized: "Solvent-based SBS adhesives are the key to sustainable development of green environment. In the long-term future, solvent-based will still be in an important position, so non-toxic or low-toxic solvents should be used. Never use hazardous solvents such as highly toxic, carcinogenic benzene and 1,2-dichloroethane, and try their best to produce benzene- and halogen-free SBS adhesives. Develop and produce water as soon as possible to replace organic solvents or even completely replace them. Waterborne SBS Adhesives."

Up to now, the well-known large enterprises in China have always adhered to the concept of environmental protection first. Shenzhen Gu Kangli Chemical Co., Ltd. is the first company in China that promises to never use 1,2-dichloroethane, benzene and other highly toxic and carcinogenic solvents; Liaoning Lushi Chemical Industry (Group) Co., Ltd. and Guangdong Taiqiang Chemical Industry Co., Ltd. Co., Ltd. also strongly does not use highly toxic solvents such as 1,2-dichloroethane, benzene, and mixed benzene; the environmentally-friendly decorative adhesive produced and sold by Fushun Geliang Chemical Co., Ltd. does not contain benzene, toluene, or two at all. Toluene, chlorinated solvents... These companies have made useful explorations and attempts to develop environmentally friendly rubber adhesives.

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