Polyvinyl alcohol (PVA) is a colorless, non-toxic, non-corrosive, biodegradable water-soluble organic polymer. At present, in addition to being the raw material of vinylon, PVA is widely used in textile sizing, coatings, adhesives, emulsifiers, films and other industrial fields. However, the

PVA polymer powder is especially suitable for use as a building mortar additive. It can be used together with the water-retaining agent of hydroxypropyl methylcellulose HPMC to improve cement. Mortar flexibility, water retention, improve mortar adhesion. In addition, the friction

PVA is unique among polymers (compounds composed of large, multi-unit molecules) because it is not formed by the polymerization of single-unit precursor molecules called monomers. In contrast, polyvinyl alcohol is made by dissolving another polymer, polyvinyl acetate (PVAc), in an

Textile size and fiber polyvinyl alcohol binder, with very good adhesion and film-forming properties, cheap and high quality, mainly used for pulping pure polyester or polyester-cotton yarn, and sometimes used for pulping high counts together with acrylic size of pure

Construction adhesives and adhesives Construction adhesives made from polyvinyl alcohol include putty adhesives, paint adhesive base materials, etc., and their scale accounts for more than 40% of the total. At present, the most widely used are PVA 17-99, PVA 20-99,

(1) Compared with cellulose ether, guar ether is more soluble in water. The performance of the pH guar ether was essentially unaffected. (2) Under the condition of low viscosity and low dosage, guar gum can replace cellulose ether in the

1. Поливиниловый спирт растворим в воде, но для полного растворения его необходимо нагреть до 65～75℃. Слегка растворим в диметилсульфоксиде. Растворим в глицерине при температуре 120～150℃, но при охлаждении до комнатной температуры превращается в желе.

1. Various waterproof and moisture-proof of various attached construction workers and single-built civil air defense projects, industrial and civil buildings; 2. Waterproof and moisture-proof for various large, medium and small grain reserves of the country; 3. Waterproofing of various sewage

Xylem Fiber is an organic flocculent fiber material obtained by chemical treatment and mechanical processing of natural renewable wood. 1. Lignocellulose is insoluble in water, weak acid and alkaline solution; the pH value is neutral, which can improve the corrosion

Polypropylene short fiber is a kind of fiber. Polypropylene short fiber can improve the crack resistance, impermeability, impact abrasion resistance, frost resistance, explosion resistance of mortar/concrete and improve the workability of concrete. Tens of millions of fibers are evenly distributed