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Gypsum-basic calcium phosphate three-dimensional interpenetrating material and preparation method thereof
The invention discloses a gypsum-basic calcium phosphate three-dimensional interpenetrating material and a preparation method thereof.The gypsum-basic calcium phosphate three-dimensional interpenetrating material comprises active gypsum, a basic calcium phosphate precursor, soluble sulfate and soluble sodium salt. And then adding the active gypsum and the basic calcium phosphate precursor into an aqueous solution of soluble sulfate and soluble sodium salt, stirring uniformly, injecting the slurry into a mold, and demolding and curing after molding. The adopted basic calcium phosphate is one of the most stable inorganic minerals in nature and is almost insoluble in water, and the insoluble basic calcium phosphate is added into the gypsum, so that the gypsum with high solubility is wrapped and wound by the insoluble basic calcium phosphate, the water resistance of the gypsum is obviously improved, and the water resistance of the gypsum is improved. In addition, in the preparation process, the basic calcium phosphate can be filled into a needle-shaped gap structure of the gypsum, so that the strength of the gypsum is enhanced, the three-dimensional interpenetrating material with high strength and water resistance is obtained, and the application of the gypsum prepared by the method is wider.
本发明公开了一种石膏—碱式磷酸钙三维互穿材料及其制备方法，包括活性石膏、碱式磷酸钙前驱物、可溶硫酸盐和可溶钠盐，先制备可溶硫酸盐和可溶钠盐的水溶液，然后将活性石膏与碱式磷酸钙前驱物加入可溶硫酸盐和可溶钠盐的水溶液中搅拌至均匀，再将浆料注入模具中，待成型后进行脱模养护。本发明采用的碱式磷酸钙是自然界最稳定的无机矿物之一，其在水中几乎不溶，本发明通过给石膏中添加具有不溶性的碱式磷酸钙，使具有高溶解性的石膏被不溶性的碱式磷酸钙所包裹缠绕，使石膏的耐水性得到明显的提升，此外在制备过程中碱式磷酸钙能够填充进石膏的针状间隙结构，从而增强了石膏的强度，得到兼具高强度和耐水性的三维互穿材料，该发明方法制备的石膏应用也更为广泛。
Gypsum-basic calcium phosphate three-dimensional interpenetrating material and preparation method thereof
The invention discloses a gypsum-basic calcium phosphate three-dimensional interpenetrating material and a preparation method thereof.The gypsum-basic calcium phosphate three-dimensional interpenetrating material comprises active gypsum, a basic calcium phosphate precursor, soluble sulfate and soluble sodium salt. And then adding the active gypsum and the basic calcium phosphate precursor into an aqueous solution of soluble sulfate and soluble sodium salt, stirring uniformly, injecting the slurry into a mold, and demolding and curing after molding. The adopted basic calcium phosphate is one of the most stable inorganic minerals in nature and is almost insoluble in water, and the insoluble basic calcium phosphate is added into the gypsum, so that the gypsum with high solubility is wrapped and wound by the insoluble basic calcium phosphate, the water resistance of the gypsum is obviously improved, and the water resistance of the gypsum is improved. In addition, in the preparation process, the basic calcium phosphate can be filled into a needle-shaped gap structure of the gypsum, so that the strength of the gypsum is enhanced, the three-dimensional interpenetrating material with high strength and water resistance is obtained, and the application of the gypsum prepared by the method is wider.
本发明公开了一种石膏—碱式磷酸钙三维互穿材料及其制备方法，包括活性石膏、碱式磷酸钙前驱物、可溶硫酸盐和可溶钠盐，先制备可溶硫酸盐和可溶钠盐的水溶液，然后将活性石膏与碱式磷酸钙前驱物加入可溶硫酸盐和可溶钠盐的水溶液中搅拌至均匀，再将浆料注入模具中，待成型后进行脱模养护。本发明采用的碱式磷酸钙是自然界最稳定的无机矿物之一，其在水中几乎不溶，本发明通过给石膏中添加具有不溶性的碱式磷酸钙，使具有高溶解性的石膏被不溶性的碱式磷酸钙所包裹缠绕，使石膏的耐水性得到明显的提升，此外在制备过程中碱式磷酸钙能够填充进石膏的针状间隙结构，从而增强了石膏的强度，得到兼具高强度和耐水性的三维互穿材料，该发明方法制备的石膏应用也更为广泛。
Gypsum-basic calcium phosphate three-dimensional interpenetrating material and preparation method thereof
一种石膏—碱式磷酸钙三维互穿材料及其制备方法
LIU YAN (author) / YANG FUWEI (author) / LI HANTING (author) / WANG LIQIN (author)
2022-06-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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