The reaction type polyurethane adhesive is a composite containing more than two chemical active components in use after the composite polyurethane adhesive curing, in addition to a wide range of applications, the adhesive have the following advantages:

High bonding strength;

High and low temperature, wide range of design;

Health and good biological performance;

High adaptability;

Medium – strong.

Three, application of composite polyurethane adhesive

Composite polyurethane adhesive is mainly used in packaging, printing, leather, textile and footwear, transportation, electronic appliances, furniture and building materials, safety protection, new energy, tobacco etc..

In four, the composite polyurethane adhesive industry

1. Since the reform and opening up, China’s composite polyurethane adhesive industry has been sustained, rapid and stable development, and has formed a certain scale of production, but from the industry point of view, medium and small scale composite polyurethane adhesive manufacturers in the industry is still the main body. According to incomplete statistics, the composite polyurethane adhesive production enterprises in our country as many as hundreds, most are for small and medium enterprises, distributed in 28 provinces and autonomous regions nationwide, with annual sales income of 50 million yuan or more and with independent technology based enterprises less than 10; and the majority of small and medium-sized enterprises production technology and management level is low, output is little and the product grade is low, difficult to deal with the modernization of production and the challenges of market competition.

The composite polyurethane adhesive as the high-end products in the industry, though started late, R & D investment is relatively small and historical reasons, domestic production enterprises in a few products on the technical level is unable to compete with international companies, but benefit from the application of new materials in the field of domestic development and the domestic economy 10 years of rapid development, still to maintain a strong momentum of development, production and sales of nearly 10 years of rapid growth, the average growth rate reached 20%.

In 2009 the domestic industrial added value growth of 11% in 2008 under the environment of China’s application in the field of plastic flexible packaging composite polyurethane adhesive production reached 215 thousand tons, still achieved a high growth rate of 26.5%, while at the same time, its sales accounted for only 5.5% of all kinds of adhesive products of total sales, but sales are the total adhesive total sales of more than 8%, has played an important role in the adhesive industry.

Five, the main industry development trend

At present, the composite polyurethane adhesive industry development presents the following trends

The expansion of application fields

As a high-end composite polyurethane adhesive adhesive, besides getting widely used in food, medicine, daily chemicals, precision instruments, instrument and electronic device and other traditional packaging field, in oil printing, household appliances, building materials, transportation, energy, security and other fields have begun to have a broad application.

The increase of industrial concentration