A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-durability rock wool and preparation method thereof
The invention relates to the technical field of rock wool, in particular to high-durability rock wool and a preparation method thereof. The high-durability rock wool is prepared from rock wool components and a modified sol solution, and the rock wool components are prepared from the following raw materials in parts by weight: 300-400 parts of basalt, 100-200 parts of dolomite, 100-120 parts of blast furnace slag and 80-100 parts of coke; gel is formed on the surface of the rock wool component, silicon dioxide aerogel is finally attached to the surface of the rock wool component, the heat conductivity of the rock wool component is reduced, and the adiabaticity of the rock wool product is improved; because the surface of the silicon dioxide aerogel has a hydrophilic group, rock wool components are easy to absorb moisture, the thermal conductivity is increased, and the heat preservation effect is reduced, methanol steam is used for oxidation treatment, alcoholic hydroxyl groups and silicon hydroxyl groups on the surface of the gel are subjected to a dehydration condensation reaction, the silicon hydroxyl groups are converted into SiOCH3, the hydrophobicity of the silicon dioxide aerogel is increased, and the heat insulation and heat preservation performance of the rock wool product is ensured.
本发明涉及岩棉技术领域，具体为一种高耐久性岩棉及其制备方法，包括岩棉组分和改性溶胶溶液，岩棉组件包括以下重量份原料：玄武岩300‑400份、白云石100‑200份、高炉矿渣100‑120份、焦炭80‑100份；本发明通过在岩棉组分表面形成凝胶，最终实现岩棉组分表面附着有二氧化硅气凝胶，降低了岩棉组分的导热率，提高了岩棉产品的绝热性；由于二氧化硅气凝胶表面具有亲水基，容易让岩棉组分吸湿而增大了导热率，降低保温效果，本发明再利用甲醇蒸汽进行氧化处理，醇羟基与凝胶表面的硅羟基发生脱水缩合反应，使得硅羟基转变为SiOCH3，继而增大了二氧化硅气凝胶的疏水性，保证了岩棉产品的绝热、保温性能。
High-durability rock wool and preparation method thereof
The invention relates to the technical field of rock wool, in particular to high-durability rock wool and a preparation method thereof. The high-durability rock wool is prepared from rock wool components and a modified sol solution, and the rock wool components are prepared from the following raw materials in parts by weight: 300-400 parts of basalt, 100-200 parts of dolomite, 100-120 parts of blast furnace slag and 80-100 parts of coke; gel is formed on the surface of the rock wool component, silicon dioxide aerogel is finally attached to the surface of the rock wool component, the heat conductivity of the rock wool component is reduced, and the adiabaticity of the rock wool product is improved; because the surface of the silicon dioxide aerogel has a hydrophilic group, rock wool components are easy to absorb moisture, the thermal conductivity is increased, and the heat preservation effect is reduced, methanol steam is used for oxidation treatment, alcoholic hydroxyl groups and silicon hydroxyl groups on the surface of the gel are subjected to a dehydration condensation reaction, the silicon hydroxyl groups are converted into SiOCH3, the hydrophobicity of the silicon dioxide aerogel is increased, and the heat insulation and heat preservation performance of the rock wool product is ensured.
本发明涉及岩棉技术领域，具体为一种高耐久性岩棉及其制备方法，包括岩棉组分和改性溶胶溶液，岩棉组件包括以下重量份原料：玄武岩300‑400份、白云石100‑200份、高炉矿渣100‑120份、焦炭80‑100份；本发明通过在岩棉组分表面形成凝胶，最终实现岩棉组分表面附着有二氧化硅气凝胶，降低了岩棉组分的导热率，提高了岩棉产品的绝热性；由于二氧化硅气凝胶表面具有亲水基，容易让岩棉组分吸湿而增大了导热率，降低保温效果，本发明再利用甲醇蒸汽进行氧化处理，醇羟基与凝胶表面的硅羟基发生脱水缩合反应，使得硅羟基转变为SiOCH3，继而增大了二氧化硅气凝胶的疏水性，保证了岩棉产品的绝热、保温性能。
High-durability rock wool and preparation method thereof
一种高耐久性岩棉及其制备方法
ZHOU WENJUN (author) / WANG YONGLIN (author) / XIE CHUNZHU (author)
2021-10-22
Patent
Electronic Resource
Chinese
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