What are gypsum powder reinforced resins?
(lightweight high-strength foam gypsum handicraft, weight ratio), gypsum powder 89-99%, rubber polymer latex 2.8, starch 0.5-5, surfactant 0.1~0.2. Dosage of water and gypsum; latex foaming agent 0.1~0.2; preparation and use; dissolve additives in water; then mix with gypsum powder to make.
(surface enhancement) dipping the prepared handicraft for 10 minutes with 1% poly vinyl oxide aqueous solution, which can increase the surface hardness, wear resistance and strength.
Borax 0.2%, water 98.8%: preparation and use of borax solution in water, and then use this solution to water and gypsum ratio of 1:1.4~1.6 by adding gypsum powder after mixing evenly made crafts, smooth surface, high strength hard texture, compared with pure gypsum products, flexural strength increased by 1.9 times, the compressive strength increased by 1.74 times.
Humic acid sodium 0.3~0.5%, building material fiber waste liquid 10~12%, papermaking waste liquid 7.2~15.7%. Preparation and application of the above prepared aqueous solution, according to the ratio of gypsum and water ratio of 1:1.25-1:1.45 added to gypsum powder, after mixing good fluidity, pH control between 7.5~8 as appropriate, gypsum products into humic acid and its salts than gypsum molding water modulation flexural strength increased by 1.35~1.97 times, the compressive strength increased by 1.31~2.23 times.
