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Gypsum-based composite slurry and application method thereof
The gypsum-based composite slurry comprises the following components: 1) composite gypsum powder, which comprises 30-40% by mass of gypsum, 20-30% by mass of ground calcium carbonate and 30-40% by mass of volcanic ash; 2) a polymer slurry, which comprises 0.2-1% by mass of a modifier, 0.5-3.5% by mass of a water reducing agent, and the balance of purified water; 3) uniformly mixing the component 1) with the mass ratio of 50-80% and the component 2) with the mass ratio of 20-50%; wherein the modifier is water-soluble cellulose and comprises one or a mixture of two or more than two of methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose and lignocellulose; the water reducing agent is one or a mixture of two of sodium gluconate or citric acid; more than 85% of moisture can be removed through three times of cyclic operation, only 3-4 hours are consumed, and fine dust is not prone to being generated when the sealed and dried toy parts are unsealed.
本发明石膏基复合浆料包括以下组分1)复合石膏粉，包括30～40％质量比的石膏，20～30％质量比的重钙，以及30～40％质量比的火山灰；2)高分子浆料，包括0.2～1％质量比的改性剂，0.5～3.5％质量比的减水剂，其余余量为纯净水；3)质量比50～80％的组分1)和质量比20～50％的组分2)混合均匀；其中所述改性剂为水溶性纤维素，包括甲基纤维素、羟丙基甲基纤维素、羟乙基纤维素及木质纤维素中的一种或两种混合或两种以上混合；所述减水剂为葡萄糖酸钠或柠檬酸中的一种或者两种混合；本发明三次循环操作可以去除85％以上的水分，且仅需耗时3～4小时，封装干燥后的玩具零件拆封时不易产生细粉尘。
Gypsum-based composite slurry and application method thereof
The gypsum-based composite slurry comprises the following components: 1) composite gypsum powder, which comprises 30-40% by mass of gypsum, 20-30% by mass of ground calcium carbonate and 30-40% by mass of volcanic ash; 2) a polymer slurry, which comprises 0.2-1% by mass of a modifier, 0.5-3.5% by mass of a water reducing agent, and the balance of purified water; 3) uniformly mixing the component 1) with the mass ratio of 50-80% and the component 2) with the mass ratio of 20-50%; wherein the modifier is water-soluble cellulose and comprises one or a mixture of two or more than two of methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose and lignocellulose; the water reducing agent is one or a mixture of two of sodium gluconate or citric acid; more than 85% of moisture can be removed through three times of cyclic operation, only 3-4 hours are consumed, and fine dust is not prone to being generated when the sealed and dried toy parts are unsealed.
本发明石膏基复合浆料包括以下组分1)复合石膏粉，包括30～40％质量比的石膏，20～30％质量比的重钙，以及30～40％质量比的火山灰；2)高分子浆料，包括0.2～1％质量比的改性剂，0.5～3.5％质量比的减水剂，其余余量为纯净水；3)质量比50～80％的组分1)和质量比20～50％的组分2)混合均匀；其中所述改性剂为水溶性纤维素，包括甲基纤维素、羟丙基甲基纤维素、羟乙基纤维素及木质纤维素中的一种或两种混合或两种以上混合；所述减水剂为葡萄糖酸钠或柠檬酸中的一种或者两种混合；本发明三次循环操作可以去除85％以上的水分，且仅需耗时3～4小时，封装干燥后的玩具零件拆封时不易产生细粉尘。
Gypsum-based composite slurry and application method thereof
一种石膏基复合浆料及应用方法
YE YIREN (author) / DU ZHUANGSONG (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Gypsum slurry as well as preparation method and application thereof
| European Patent Office | 2020
| European Patent Office | 2024