To improve the initial viscosity of urea-formaldehyde resin, polyvinyl alcohol, polyethylene glycol, hydroxymethylcellulose, etc. can be added, but the price is higher, and starch is the most suitable for the selection of starch, especially starch is added at the beginning of urea-formaldehyde resin synthesis, and the effect is better.

In the synthesis process starch may occur hydrolysis, the formation of a variety of dextrin, etc., because the relative molecular mass of starch is very large, the viscosity after dissolution is also very large, add a small amount of urea-formaldehyde resin with a large viscosity. At the same time, the hydroxyl group, hydroxymethyl group and aldehyde group produced by hydrolysis on the starch molecular chain may participate in the synthesis reaction of urea-formaldehyde resin, which not only improves the initial viscosity, but also improves the bonding strength and storage stability.

Zibo Haiyang Industry Co., Ltd. was established in 1999, and Zibo Chemical Industry, Zoology Research Institute jointly established, set scientific research, development, production, management in one of the high-tech economic entity, the company has strong technical force, has a well-known national chemical experts and a large number of chemical, animal nutrition, building materials, automation instruments and mechanical equipment and other aspects of the professional personnel. The company consists of planning department, technology department, production department, marketing department, experimental plant and research and development center. The company's production of urea-formaldehyde resin glue powder, aquatic feed binder, corrugated box enhancer, melamine glue powder, wood adhesive and other products are recognized and loved by many customers at home and abroad, and are developed by our company on the basis of integrating advanced technology from Denmark, Germany, Japan and the United States. Our company has advanced production technology, sophisticated production equipment, perfect testing means, and leading product quality in the country. Customers all over the country, in the same industry market share is high.