The latest development of foreign coating producti

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The latest progress of foreign coating production technology

the latest progress of foreign coating production technology

August 1, 2002

in recent years, the progress of coating industry production technology mainly focuses on improving formula effect, reducing cost, reducing the volatile amount of volatile organic compounds, and developing water-based coatings. One of the major advances is the use of castor oil additives or organic clay additives that can increase the pigment concentration in the grinding stage

to increase the attachment, which can be used as experimental materials for contraction, zigzag and ring stiffness. In view of the continuous rise in the price of TiO2 and HEC (hydroxyethyl fiber

element), this technology can also gain additional benefits by reducing the TiO2 and HEC components in the formula

hec has the function of rheological modifier and can compete with relevant synthetic thickeners. In 1999, Hercules (Hercules

s) expanded its HEC production line, and its new products include natrosol plus340 for architectural coatings and aq-d-3441 for architectural and industrial coatings. In addition to HEC, there are two other new varieties of water-based additives - new water

ethoxylated polyurethane resin (HEUR) and hydrophilic alkaline expandable emulsifier (hase). Ashland (Ashland)

chemical company can provide HAES and HEUR products. Recently, he sold two low odor products. Reducing the smell of paint is one of the directions of the current paint industry

it is predicted that the market share of water-based coatings to solvent-based coatings will rise from 45% in 1998 to

47% in 2000. The construction industry is the largest user of water-based coatings, accounting for about 70% of the total consumption of water-based coatings; Raw equipment manufacturing

(OEM) accounts for about 20%, and special purposes account for 10%

the development of resin focuses on the use of mixed material plastic combustion instrument ul94:2002 as a means to reduce costs. Acrylic polyurethane hybrid is commonly used in maintenance coatings

Zeneca company is the main manufacturer of acrylic polyurethane blends. It uses the method of grafting acrylic acid onto polyurethane to produce acrylic polyurethane blends

organosilicon coatings are also commonly used in grafting hybrid systems. This kind of coating is water-resistant and high-temperature resistant. The only disadvantage is its viscosity. Wacker silicone company is developing silicone products to improve viscosity. The company also provides organosilicon products used as foam control agent and surface modifier. In addition to Wacker, Dow Corning and BYK chemical companies can supply various silicone products for coatings

Another development of water-based coating technology is related to low-temperature crosslinking and high solid content active resin. For example, Amoco

(Amoco) chemical company introduced a new high activity polybutene in its indopol polybutene product series. This

new product has high activity by cutting 6 test pieces from each batch of finished products through the hydrocarbon chain and connecting double bonds to the terminal parts. This highly active polybutene used as internal plasticizer has replaced the coagulant and reduced the amount of solvent, thus reducing the content of organic volatile matter and the specific gravity of coating gas: 2.13 ⑵ 167g/cm flavor. The combination of high functions and low organic volatiles is also the main development side of water-based acrylic acid and polyurethane resin

Cytec company is developing new melamine formaldehyde free crosslinking agent products. At the beginning of 1998, the company purchased the shares of dyno Cytec joint venture (production of amino crosslinking agent resin) of dyno

Industrial Company to enhance its position in the crosslinking agent market. The deal also includes a 27500 T/A amino acid resin plant in lillestram, Norway

the use of renewable resources in radiation coatings and coating systems is also a new development trend in the coating industry. In 1998,

chemrex first introduced radiation coatings as low-energy interior wall coatings in the United States. This radiation emulsion coating can block the heat emission and reduce the radiation energy. According to the company, the thermal emission coefficient of the wall with the standard interior latex paint is about 0 95, radiant heat reflectivity is 5%-10%. The low thermal emission coefficient of the wall can improve the thermal resistance of the wall

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