4a Molecular Sieve Desiccant Moisture Removal In PU Or Paint&Coatings

Polyurethane (paint, glue, sealants)

No matter single component or two-component polyurethane products, water will react with the isocyanate to form amine and carbon dioxide; amines then further react with isocyanate, releasing a lot of carbon dioxide and bubbles formed on the paint film surface, which results in film performance deteriorate and even failure. Adding molecular sieve (powder) to the plasticizer or dispersant can solve the problem. According to the different polyurethane systems, the quantity of 5%-8% is sufficient to remove residual water.

Anti-corrosive Coating

In the epoxy zinc-rich primer, a trace of water will react violently with zinc to produce hydrogen, increasing the pressure inside barrels and shortening the lifespan of primer, which then results in the paint films' dense, abrasion resistance and hardness greatly reduced. As a purely physical absorbent desiccant, molecular sieve (powder) ​is safe and convenient while in use in the aspects of removal of water but meanwhile no reaction with the binder.

Metal Powder Coating

There also exist similar reactions in the metal powder coating, such as in aluminum paint.

Technical Index

Storage

The molecular sieve shall be stored at room temperature, in which the relative humidity does not exceed 90%, and be not exposed to air, and prevented against water, acids and alkalizes.

Attention

1. The product cannot be exposed in the open air and should be stored in dry condition with the air-proof package.

2. The product should be regenerated after a certain period of adsorption. The appropriate regenerated temperature would be better below 350°C.

Xi'an Lvneng Purification Technology Co., Ltd., was relocated to Xi'an from Dalian in November 2004. With more than 20 years of management and development, it becomes a key manufacturer of the special type molecular sieve in China, specializes in molecular sieve, activated alumina, and other industrial desiccants.

Xi'an Lvneng Purification Technology Co., Ltd., relying on the professional background of molecular sieve absorbent research and development, production and operation for nearly 30 years have rapidly and steadily developed the foreign markets. In September 2012, the company settled in the Weibei industrial area of Xi'an, with a newly built factory of nearly 8,000 square meters, covering an area of more than 10 mu, with nearly 70 employees, 4 technical researchers, perfect inspection equipment and the technology research & development was in the forefront of the industry. With the completion of the new plant, nearly ten million yuan was invested in the production equipment and the production capacity reached 8,000 tons and its output value has reached over 50 million for two consecutive years. Therefore, it can better meet the sales and operation needs of enterprises.

Xi'an Lvneng Purification Technology Co., Ltd with leading technology and excellent quality as its development objective for many years, has worked closely with Dalian Institute of chemical physics, Chinese Academy of Sciences, Xi 'an institute of high voltage electrical appliances, electrical bureau of machinery industry department, northwest chemical engineering institute, Changqing institute of chemical technology, Daqing petrochemical company and other units to overcome various technical difficulties and steadily improve product quality.

The adsorbent products such as molecular sieve and alumina are widely used in petrochemical, CNG, LNG, industrial gas, compressed air, coal chemical, air separation, refrigeration and construction industries. In particular, with the industrial transformation of the country and the innovation of global industry 4.0, the drying and purification of industrial power gas depend on the upgrading of industrial automation, especially the molecular sieve desiccant.

After 20 years' development in the market, the enterprise still becomes an excellent supplier to a large number of state-owned enterprises, such as Changqing oilfield, Tuha oilfield, Liaohe oilfield, Yanshan petrochemical company, Qingyang petrochemical company, Maoming petrochemical company, China aviation industry group, China shipbuilding industry group and so on. Meanwhile, more than 70% of the adsorbent fillers used in the dehydrated sheath of CNG gas stations in Xinjiang, Shandong, and Hebei regions are our products. In terms of new market development, Xi'an Lvneng Purification Technology Co., Ltd develops foreign trade rapidly and stable on the basis of the strong domestic trade market.

Through Alibaba (China), Kompass (France), Global Sources (the United States), Tendata (Europe), Avention(Europe) and other foreign trade platforms, we have developed a wide range of foreign customers. Currently, our customers are all over Asia, Europe, North America and South America. Alstom (France), Xebec (Canada), Atlas Copco (USA), Danfoss (Denmark), Zarrin Toor Felez (Iran), Saral Azar (Iran) Bhogart LLC (USA), Socane (France), Petro Kimya Akam (Iran), Atlas Caspian (Iran), HD Trading Company (Iran), and Seraj Gostar (Korea), Bioversity (India), etc. Under the efforts of the foreign trade team, the sales revenue of 1.6 million us dollars per year was realized on average in three years, and the special fund of foreign trade subsidy from the provincial department of commerce was obtained for two consecutive years.

Inherit the past and forge ahead into the future, as northwest China's biggest molecular sieve adsorbent manufacturer, leading technology, excellent quality, customized service is our tenet, through the industry-leading new production line, mechanization degree is maximum improved, make our enterprise to adapt to the market and service market better. Thus achieve the sustainable and steady development of enterprises, casting the next brilliant enterprises.