1, HEMC application whiten stained briefly studied the impact of three different viscosity hydroxyethyl methyl cellulose for portland cement plasters and early, and by X-ray diffraction (XRD), scanning electron microscopy ( SEM) and optical microscopy on the surface of white mortar material for analysis. The results show that the viscosity of hydroxyethyl methyl cellulose and content have a significant impact on cement plasters contamination and whiten. Three viscosity hydroxyethyl methyl cellulose at different dosage range can improve mortar stain resistance; when hydroxyethyl methyl cellulose, low viscosity and proper dosage of anti-whitening no adverse early mortar impact, medium and high viscosity hydroxyethyl cellulose is not. XRD and SEM analysis showed that, CaCO3 is portland cement plasters the surface of white material the main phase. 2, hydroxyethyl methyl cellulose Application Introduction cement plasters as a special mortar, cellulose ether is its essential components. Cellulose ether has excellent water retention, can significantly improve the workability of mortar, mortar hardening properties also have an impact, the company also found that hydroxypropyl methyl cellulose ether of efflorescence decorative mortar a certain extent. However, the type and viscosity cellulose ether cement plasters some important properties, such as impact resistance, stain resistance and basic research, little pan. This is an important parameter in particular viscosity cellulose ethers, which may have a significant impact on the level of cement plasters performance. Therefore, this study is high, medium, and low viscosity hydroxyethyl methyl cellulose for Portland cement-based plasters stains and efflorescence (hereinafter referred to whiten) the impact of the law, specifically suitable for The viscosity of cellulose ethers and cement plasters dosage range, providing a theoretical basis for cement plasters raw material selection. The company's products cellulose ethers, methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, redispersible powder, polypropylene fiber, the company has high-quality cellulose and latex powder aspects of professional and technical personnel, and continuously improve product quality and application technology. Price for reference only: 28,000 yuan / ton structure is different in different viscosities Tel: 18135796779 Li hydroxyethyl methyl cellulose factory: http: //www.tianshenghx.com