A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Titanium dioxide modified calcium sulfate whisker as well as preparation method and application thereof
The invention belongs to the technical field of material modification, and discloses a titanium dioxide modified calcium sulfate whisker as well as a preparation method and application thereof. The preparation method comprises the following steps: synthesizing nano titanium dioxide sol in situ by using a butyl titanate sol-gel method, carrying out coating modification on calcium sulfate whiskers by using the nano titanium dioxide sol, centrifuging, and drying to obtain the titanium dioxide modified calcium sulfate whisker material. The modified calcium sulfate whisker is coated with the nano titanium dioxide sol, and a layer of nano titanium dioxide film is formed on the surface of the calcium sulfate whisker, so that the calcium sulfate whisker has better dispersity, the grain size of the calcium sulfate whisker is not changed, and the shape, the crystal form and the performance of the calcium sulfate whisker are protected; the coated and modified calcium sulfate whisker has strong hydrophilicity and good dispersibility, and improves the mechanical properties of set cement, thereby enhancing the bonding ability with a cement-based material and improving the performance of well cementation cement.
本发明属于材料改性技术领域，公开了一种二氧化钛改性硫酸钙晶须及其制备方法和应用。制备方法包括以下步骤：以钛酸丁酯溶胶‑凝胶法原位合成纳米二氧化钛溶胶，通过纳米二氧化钛溶胶对硫酸钙晶须进行包覆改性，离心、干燥后得到二氧化钛改性硫酸钙晶须材料。本发明通过纳米二氧化钛溶胶包覆改性硫酸钙晶须，在硫酸钙晶须的表面形成一层纳米二氧化钛薄膜，使硫酸钙晶须具有更好的分散度，并对硫酸钙晶须晶粒大小并无改变，对硫酸钙晶须的形貌、晶型、性能起到了保护作用，包覆改性的硫酸钙晶须具有较强的亲水性，分散性好，提高了水泥石的力学性能，从而也增强了与水泥基材料之间的粘结能力，提高了固井水泥的性能。
Titanium dioxide modified calcium sulfate whisker as well as preparation method and application thereof
The invention belongs to the technical field of material modification, and discloses a titanium dioxide modified calcium sulfate whisker as well as a preparation method and application thereof. The preparation method comprises the following steps: synthesizing nano titanium dioxide sol in situ by using a butyl titanate sol-gel method, carrying out coating modification on calcium sulfate whiskers by using the nano titanium dioxide sol, centrifuging, and drying to obtain the titanium dioxide modified calcium sulfate whisker material. The modified calcium sulfate whisker is coated with the nano titanium dioxide sol, and a layer of nano titanium dioxide film is formed on the surface of the calcium sulfate whisker, so that the calcium sulfate whisker has better dispersity, the grain size of the calcium sulfate whisker is not changed, and the shape, the crystal form and the performance of the calcium sulfate whisker are protected; the coated and modified calcium sulfate whisker has strong hydrophilicity and good dispersibility, and improves the mechanical properties of set cement, thereby enhancing the bonding ability with a cement-based material and improving the performance of well cementation cement.
本发明属于材料改性技术领域，公开了一种二氧化钛改性硫酸钙晶须及其制备方法和应用。制备方法包括以下步骤：以钛酸丁酯溶胶‑凝胶法原位合成纳米二氧化钛溶胶，通过纳米二氧化钛溶胶对硫酸钙晶须进行包覆改性，离心、干燥后得到二氧化钛改性硫酸钙晶须材料。本发明通过纳米二氧化钛溶胶包覆改性硫酸钙晶须，在硫酸钙晶须的表面形成一层纳米二氧化钛薄膜，使硫酸钙晶须具有更好的分散度，并对硫酸钙晶须晶粒大小并无改变，对硫酸钙晶须的形貌、晶型、性能起到了保护作用，包覆改性的硫酸钙晶须具有较强的亲水性，分散性好，提高了水泥石的力学性能，从而也增强了与水泥基材料之间的粘结能力，提高了固井水泥的性能。
Titanium dioxide modified calcium sulfate whisker as well as preparation method and application thereof
一种二氧化钛改性硫酸钙晶须及其制备方法和应用
WANG SHAN (author) / MEI MINGJIA (author) / JIANG MIN (author) / WEI WENQI (author) / WU YANG (author) / YE GUANGHUI (author) / CAO LEI (author) / YE LEI (author)
2024-03-15
Patent
Electronic Resource
Chinese
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