A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a demoulding-free calcium silicate board and a preparation method thereof, and belongs to the technical field of building materials. The calcium silicate board is prepared from the following components in parts by weight: 25 to 30 parts of silicon-based micro powder, 50 to 60 parts of calcium-based micro powder, 3.5 to 4 parts of reinforced fibers, 2.8 to 3.6 parts of a reinforced coating agent, 0.15 to 0.2 part of a shape-retaining agent and 0.1 to 0.12 part of a water reducing agent, the reinforced coating agent is prepared by the following steps: carrying out amine ester exchange on diethylenetriamine and ethyl thioglycolate to prepare an amide compound containing a terminal sulfydryl group, carrying out click addition on a silane coupling agent KH570 and the terminal sulfydryl group of the amide compound, introducing a terminal ethyoxyl silane structure for modification, and forming a complexing-coupling-hydration promotion effect in a raw plate blank. The plate shape can be kept stable in the pre-curing process without a mold, the demolding process can be omitted in the production process, the mechanical property of the plate is improved, meanwhile, the density of the plate is improved, and the water-resistant stability of the material is better.
本发明涉及一种免脱模硅酸钙板及其制备方法，属于建筑材料技术领域。该硅酸钙板按照重量份计包括：硅基微粉25‑30份、钙基微粉50‑60份、强化纤维3.5‑4份、强化被膜剂2.8‑3.6份、保型剂0.15‑0.2份和减水剂0.1‑0.12份；强化被膜剂由二乙烯三胺与巯基乙酸乙酯进行胺酯交换，制成含端巯基的酰胺化合物，再由硅烷偶联剂KH570与其端巯基点击加成，引入端乙氧基硅烷结构改性，在生板坯中形成络合‑偶联‑促水化作用，无需模具即能在预养过程中保持板型稳定，在生产过程中可省去脱模工序，提升板材的力学性能，同时提升板材的致密度，使得材料的耐水稳定性更好。
The invention relates to a demoulding-free calcium silicate board and a preparation method thereof, and belongs to the technical field of building materials. The calcium silicate board is prepared from the following components in parts by weight: 25 to 30 parts of silicon-based micro powder, 50 to 60 parts of calcium-based micro powder, 3.5 to 4 parts of reinforced fibers, 2.8 to 3.6 parts of a reinforced coating agent, 0.15 to 0.2 part of a shape-retaining agent and 0.1 to 0.12 part of a water reducing agent, the reinforced coating agent is prepared by the following steps: carrying out amine ester exchange on diethylenetriamine and ethyl thioglycolate to prepare an amide compound containing a terminal sulfydryl group, carrying out click addition on a silane coupling agent KH570 and the terminal sulfydryl group of the amide compound, introducing a terminal ethyoxyl silane structure for modification, and forming a complexing-coupling-hydration promotion effect in a raw plate blank. The plate shape can be kept stable in the pre-curing process without a mold, the demolding process can be omitted in the production process, the mechanical property of the plate is improved, meanwhile, the density of the plate is improved, and the water-resistant stability of the material is better.
本发明涉及一种免脱模硅酸钙板及其制备方法，属于建筑材料技术领域。该硅酸钙板按照重量份计包括：硅基微粉25‑30份、钙基微粉50‑60份、强化纤维3.5‑4份、强化被膜剂2.8‑3.6份、保型剂0.15‑0.2份和减水剂0.1‑0.12份；强化被膜剂由二乙烯三胺与巯基乙酸乙酯进行胺酯交换，制成含端巯基的酰胺化合物，再由硅烷偶联剂KH570与其端巯基点击加成，引入端乙氧基硅烷结构改性，在生板坯中形成络合‑偶联‑促水化作用，无需模具即能在预养过程中保持板型稳定，在生产过程中可省去脱模工序，提升板材的力学性能，同时提升板材的致密度，使得材料的耐水稳定性更好。
Demoulding-free calcium silicate board and preparation method thereof
一种免脱模硅酸钙板及其制备方法
ZHANG YAN (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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