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Preparation method of heat-preservation pipe shell material with micro-nano size and hierarchical pores
The invention provides a preparation method of a heat-preservation pipe shell material with micro-nano size and hierarchical pores. The heat-preservation pipe shell material is composed of a solid phase and a liquid phase according to a mass ratio of 7: 3. The solid phase comprises the following components in parts by mass: 30-35 parts of fly ash, 15-20 parts of coal gangue, 1-5 parts of hollow glass beads, 1-5 parts of vitrified beads, 10-15 parts of glass fibers, 1-5 parts of aerogel powder and 7 parts of plant ash. The liquid phase comprises the following components in parts by weight: 3-5parts of water glass, 1-5 parts of hydrogen peroxide and 50 parts of water. The heat-preservation pipe shell material is formed through a mold forming process. The heat-preservation pipe shell material prepared through the method has the characteristics of being low in heat conductivity, high in strength, non-combustible and good in high-temperature resistance. The heat-preservation pipe shell material has micrometer and nanometer hierarchical closed pores, the porosity of the material is between 50-70%, the heat conductivity coefficient of the material is 0.04 W/mK, the compressive strength of the material can reach 12 MPa, and the material can resist a high temperature of 800 DEG C. The effects of heat insulation, heat preservation and energy conservation are achieved. The material is suitable for being used as a heat-preservation pipe shell material for various low-temperature, medium-temperature and high-temperature pipeline equipment.
本发明提出的是一种微纳米级尺寸多级孔隙保温管壳材的制备方法。原料组合：以质量份数计，固相和液相按质量比7：3组成。其中，固相组成按100份质量比计算，其中粉煤灰30‑35份，煤矸石15‑20份，中空玻璃微珠15份，玻化微珠15份；玻璃纤维10‑15份，气凝胶粉末15份，草木灰7份。液相组成按100份重量比计算，水玻璃35份，双氧水15份和水50份。经过模具成型过程，形成保温管壳材。采用本发明方法制备的保温管壳材具有热导率低、高强度、不燃、耐高温性能好的特点。有微米和纳米多级闭合孔隙，气孔率50‑70%之间，其导热系数为0.04W/mK，抗压强度可达到12 MPa，可耐800℃高温。起到隔热保温节能的效果。适宜作为各类低、中、高温管道设备保温管壳材应用。
Preparation method of heat-preservation pipe shell material with micro-nano size and hierarchical pores
The invention provides a preparation method of a heat-preservation pipe shell material with micro-nano size and hierarchical pores. The heat-preservation pipe shell material is composed of a solid phase and a liquid phase according to a mass ratio of 7: 3. The solid phase comprises the following components in parts by mass: 30-35 parts of fly ash, 15-20 parts of coal gangue, 1-5 parts of hollow glass beads, 1-5 parts of vitrified beads, 10-15 parts of glass fibers, 1-5 parts of aerogel powder and 7 parts of plant ash. The liquid phase comprises the following components in parts by weight: 3-5parts of water glass, 1-5 parts of hydrogen peroxide and 50 parts of water. The heat-preservation pipe shell material is formed through a mold forming process. The heat-preservation pipe shell material prepared through the method has the characteristics of being low in heat conductivity, high in strength, non-combustible and good in high-temperature resistance. The heat-preservation pipe shell material has micrometer and nanometer hierarchical closed pores, the porosity of the material is between 50-70%, the heat conductivity coefficient of the material is 0.04 W/mK, the compressive strength of the material can reach 12 MPa, and the material can resist a high temperature of 800 DEG C. The effects of heat insulation, heat preservation and energy conservation are achieved. The material is suitable for being used as a heat-preservation pipe shell material for various low-temperature, medium-temperature and high-temperature pipeline equipment.
本发明提出的是一种微纳米级尺寸多级孔隙保温管壳材的制备方法。原料组合：以质量份数计，固相和液相按质量比7：3组成。其中，固相组成按100份质量比计算，其中粉煤灰30‑35份，煤矸石15‑20份，中空玻璃微珠15份，玻化微珠15份；玻璃纤维10‑15份，气凝胶粉末15份，草木灰7份。液相组成按100份重量比计算，水玻璃35份，双氧水15份和水50份。经过模具成型过程，形成保温管壳材。采用本发明方法制备的保温管壳材具有热导率低、高强度、不燃、耐高温性能好的特点。有微米和纳米多级闭合孔隙，气孔率50‑70%之间，其导热系数为0.04W/mK，抗压强度可达到12 MPa，可耐800℃高温。起到隔热保温节能的效果。适宜作为各类低、中、高温管道设备保温管壳材应用。
Preparation method of heat-preservation pipe shell material with micro-nano size and hierarchical pores
一种微纳米级尺寸多级孔隙保温管壳材的制备方法
ZHOU ZHANGJIAN (author) / LU YIFEI (author) / ZHANG TING (author) / YANG ZIMING (author)
2021-02-26
Patent
Electronic Resource
Chinese
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