Other Polymers

Styrene maleic anhydride (SMA or SMAnh) is a synthetic polymer that is built-up of styrene and maleic anhydride monomers. The monomers can be almost perfectly alternating, making it an alternating copolymer, but (random) copolymerisation with less than 50% maleic anhydride content is also possible. The polymer is formed by a radical polymerization, using an organic peroxide as the initiator. The main characteristics of SMA copolymer are its transparent appearance, high heat resistance, high dimensional stability, and the specific reactivity of the anhydride groups. The latter feature results in the solubility of SMA in alkaline (water-based) solutions and dispersion.

This product is a green and environment-friendly polycarboxylic acid water reducer. It has the advantages of high water reduction rate, small dosage, improved concrete durability and strong adaptability to cement. It is suitable for the configuration of pumping concrete, high flow concrete, high-strength concrete and high-performance concrete. The product belongs to high concentration mother liquor and needs to be used after compounding. It cannot be directly used in engineering construction.

Modified with straight run base asphalt from its own refinery, it can produce modified asphalt that meets the performance requirements of various indexes and realize customized production. The product has excellent stability and high cost performance. At present, it has been widely used in Tibet and other regions. The product has good high and low temperature performance. It can improve the anti-aging and fatigue resistance of the pavement, so that the road surface has better resistance to rutting, improves the skid resistance and bearing capacity of the road surface, and prolongs the service life of the pavement.

Cycloalkyl crude oil from South America and the Middle East is selected as the raw material for asphalt production and produced by customized process. It has the characteristics of low viscosity, good low-temperature flexibility and ductility, good compatibility with modifier, low flue gas content and appropriate proportion of four components of asphalt. The product is not brittle at low temperature, and its low-temperature flexibility reaches - 29 ℃. It has strong self-adhesive and high bonding strength, and can reduce the production temperature and reduce flue gas emission. The product is especially suitable for all kinds of asphalt based building waterproof products represented by asphalt waterproof coiled materials, asphalt based waterproof coatings and non curing coatings. It can effectively solve the problems of creep, adhesion, heat resistance and poor low temperature performance of waterproof materials. At the same time, it can shorten the production process of waterproof materials, reduce production energy consumption and improve production efficiency.

Polycarboxylic acid superplasticizer is the third generation high-performance superplasticizer developed after the ordinary superplasticizer represented by calcium lignosulfonate and the superplasticizer represented by naphthalene series. It is the most advanced superplasticizer in the world with the highest scientific and technological content, the best application prospect and the best comprehensive performance