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A platform for research: civil engineering, architecture and urbanism
Gypsum plaster board based on water reducing agent and preparation method of gypsum plaster board
The invention discloses a gypsum plaster board based on a water reducing agent and a preparation method of the gypsum plaster board. The gypsum slurry comprises the following components: gypsum, an epoxy resin mixture, a foaming agent, a water reducing agent, corn starch, deionized water and an organosilicon waterproofing agent. Wherein the water reducing agent adopts a polycarboxylic acid water reducing agent, so that the flowability of the gypsum slurry is improved. Lignin is subjected to amination modification and compounded with lignocellulosic fibers and basalt fibers, the water resistance of the fibers in gypsum slurry is improved, the mechanical property of the gypsum board is improved, meanwhile, hyperbranched polyester is used, terminal hydroxyl groups in the hyperbranched polyester can react with epoxy resin, the crosslinking density is improved, an interpenetrating network structure is generated, and the mechanical property of the gypsum board is improved. The dispersing performance of the fiber in the epoxy resin is improved, and the mechanical property of the gypsum board is improved.
本发明公开了一种基于减水剂的纸面石膏板及其制备方法。所述石膏浆料包括以下成分：石膏、环氧树脂混合物、发泡剂、减水剂、玉米淀粉、去离子水、有机硅防水剂。其中减水剂采用聚羧酸系减水剂，提高了石膏浆料的流动性。对木质素进行胺化改性，并与木质纤维素纤维和玄武岩纤维复合，提高了纤维在石膏浆料中的耐水性，提升了石膏板的力学性能，同时使用超支化聚酯，超支化聚酯中的端羟基能与环氧树脂发生反应，提高交联密度，生成互穿的网络结构，提高纤维在环氧树脂中的分散性能，提升了石膏板的力学性能。
Gypsum plaster board based on water reducing agent and preparation method of gypsum plaster board
The invention discloses a gypsum plaster board based on a water reducing agent and a preparation method of the gypsum plaster board. The gypsum slurry comprises the following components: gypsum, an epoxy resin mixture, a foaming agent, a water reducing agent, corn starch, deionized water and an organosilicon waterproofing agent. Wherein the water reducing agent adopts a polycarboxylic acid water reducing agent, so that the flowability of the gypsum slurry is improved. Lignin is subjected to amination modification and compounded with lignocellulosic fibers and basalt fibers, the water resistance of the fibers in gypsum slurry is improved, the mechanical property of the gypsum board is improved, meanwhile, hyperbranched polyester is used, terminal hydroxyl groups in the hyperbranched polyester can react with epoxy resin, the crosslinking density is improved, an interpenetrating network structure is generated, and the mechanical property of the gypsum board is improved. The dispersing performance of the fiber in the epoxy resin is improved, and the mechanical property of the gypsum board is improved.
本发明公开了一种基于减水剂的纸面石膏板及其制备方法。所述石膏浆料包括以下成分：石膏、环氧树脂混合物、发泡剂、减水剂、玉米淀粉、去离子水、有机硅防水剂。其中减水剂采用聚羧酸系减水剂，提高了石膏浆料的流动性。对木质素进行胺化改性，并与木质纤维素纤维和玄武岩纤维复合，提高了纤维在石膏浆料中的耐水性，提升了石膏板的力学性能，同时使用超支化聚酯，超支化聚酯中的端羟基能与环氧树脂发生反应，提高交联密度，生成互穿的网络结构，提高纤维在环氧树脂中的分散性能，提升了石膏板的力学性能。
Gypsum plaster board based on water reducing agent and preparation method of gypsum plaster board
一种基于减水剂的纸面石膏板及其制备方法
MA JISHUN (author) / ZHANG JINGDA (author)
2022-07-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08H
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
,
Derivate von natürlichen makromolekularen Verbindungen
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