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A platform for research: civil engineering, architecture and urbanism
Silica aerogel with high elasticity
The invention discloses silica aerogel with high elasticity. The silica aerogel comprises the following raw materials in parts by weight: 90-100 parts of tetraethoxysilane, 30-45 parts of hydrochloricacid, 60-80 parts of ammonia water, 100-110 parts of ethanolamine and an aqueous solution of ethanolamine, 40-45 parts of acetonitrile, 30-45 parts of glass fibers and 50-60 parts of titanium dioxide. According to the invention, a certain amount of the glass fibers and a certain amount of the titanium dioxide are added into raw materials for producing the silica aerogel; titanium dioxide powder is selected as an opacifying agent, so the highest extinction coefficient can be obtained relative to a carbon black material; furthermore, the titanium dioxide powder is doped into the silica aerogel,so the radiation heat conduction of the silica aerogel at high temperature can be effectively reduced, and the total pyroconductivity of the silica aerogel is thus maintained at a low level; and dueto the doping of the glass fibers, the elasticity modulus of a finished silica aerogel product after solidification can be increased, the brittle mechanical property of the finished silica aerogel product is improved, and the elasticity and the toughness of the finished silica aerogel product are improved.
本发明公开了一种高弹性的硅石气凝胶，包括下列重量份的原料：正硅酸乙酯90‑100份、盐酸30‑45份、氨水60‑80份、乙醇胺及其水溶液均为100‑110份、乙腈40‑45份、玻璃纤维30‑45份和二氧化钛50‑60份，在生产硅石气凝胶的原材料中加入了一定量玻璃纤维和二氧化钛，选用二氧化钛粉末作为遮光剂相对于炭黑材料能获得最高消光系数，进而硅石气凝胶中掺入二氧化钛粉末能非常有效地降低其高温下的辐射热传导，从而使其总热传导率在高温下维持很低的水平，而玻璃纤维的掺入能增加硅石气凝胶成品凝固后的弹性模量，改善其比较脆强的力学性能，提升其弹性和韧性。
Silica aerogel with high elasticity
The invention discloses silica aerogel with high elasticity. The silica aerogel comprises the following raw materials in parts by weight: 90-100 parts of tetraethoxysilane, 30-45 parts of hydrochloricacid, 60-80 parts of ammonia water, 100-110 parts of ethanolamine and an aqueous solution of ethanolamine, 40-45 parts of acetonitrile, 30-45 parts of glass fibers and 50-60 parts of titanium dioxide. According to the invention, a certain amount of the glass fibers and a certain amount of the titanium dioxide are added into raw materials for producing the silica aerogel; titanium dioxide powder is selected as an opacifying agent, so the highest extinction coefficient can be obtained relative to a carbon black material; furthermore, the titanium dioxide powder is doped into the silica aerogel,so the radiation heat conduction of the silica aerogel at high temperature can be effectively reduced, and the total pyroconductivity of the silica aerogel is thus maintained at a low level; and dueto the doping of the glass fibers, the elasticity modulus of a finished silica aerogel product after solidification can be increased, the brittle mechanical property of the finished silica aerogel product is improved, and the elasticity and the toughness of the finished silica aerogel product are improved.
本发明公开了一种高弹性的硅石气凝胶，包括下列重量份的原料：正硅酸乙酯90‑100份、盐酸30‑45份、氨水60‑80份、乙醇胺及其水溶液均为100‑110份、乙腈40‑45份、玻璃纤维30‑45份和二氧化钛50‑60份，在生产硅石气凝胶的原材料中加入了一定量玻璃纤维和二氧化钛，选用二氧化钛粉末作为遮光剂相对于炭黑材料能获得最高消光系数，进而硅石气凝胶中掺入二氧化钛粉末能非常有效地降低其高温下的辐射热传导，从而使其总热传导率在高温下维持很低的水平，而玻璃纤维的掺入能增加硅石气凝胶成品凝固后的弹性模量，改善其比较脆强的力学性能，提升其弹性和韧性。
Silica aerogel with high elasticity
一种高弹性的硅石气凝胶
HOU TENGTENG (author) / FENG NAN (author)
2020-07-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Aerogel-ruder : udvikling af vinduesruder med silica aerogel
| TIBKAT | 1991
| European Patent Office | 2024
| Elsevier | 2024