Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hot-pressing self-adhesive aerogel and thermal insulation material
The invention relates to the field of thermal insulation materials, and discloses a hot-pressing self-adhesive aerogel and a thermal insulation material. The preparation method of the hot-pressed self-adhesive aerogel comprises the following steps: (1) applying porous aerogel particles to the top of a bevel groove under heating, and enabling the porous aerogel particles to roll down along the bevel groove paved with hot melt adhesive powder to obtain aerogel; and (2) loading n-pentane to obtain the hot-pressed self-adhesive aerogel. According to the preparation method, firstly, hot melt adhesive powder with a small particle size is attached to the surfaces of porous aerogel particles with a large particle size in a dispersion mode, the obtained aerogel has the hot-pressing self-adhesion characteristic, adhesion can be achieved only through simple hot pressing, and by means of the mode, the use amount of hot melt adhesive can be reduced on the premise that the bonding strength is not obviously affected; therefore, the influence on the porosity of the aerogel layer after the hot melt adhesive is molten is avoided. The n-pentane is loaded before the aerogel is used, so that the porosity of the porous aerogel particles can be improved during hot pressing.
本发明涉及隔热材料领域，本发明公开了一种热压自粘型气凝胶及隔热材料。该热压自粘型气凝胶的制备包括：（1）在加热下于斜面槽顶部施加多孔气凝胶颗粒并使其沿铺撒有热熔胶粉体的斜面槽滚落，得到气凝胶；（2）负载正戊烷，得到热压自粘型气凝胶。本发明先将粒径较小的热熔胶粉体以弥散方式附着于粒径较大的多孔气凝胶颗粒表面，所得气凝胶具有热压自粘特性，只需简单热压即可粘合，该方式可在不明显影响粘结强度的前提下降低热熔胶用量，从而避免热熔胶熔融后对气凝胶层孔隙率的影响。本发明在气凝胶使用前负载正戊烷，能够在热压时提高多孔气凝胶颗粒的孔隙率。
Hot-pressing self-adhesive aerogel and thermal insulation material
The invention relates to the field of thermal insulation materials, and discloses a hot-pressing self-adhesive aerogel and a thermal insulation material. The preparation method of the hot-pressed self-adhesive aerogel comprises the following steps: (1) applying porous aerogel particles to the top of a bevel groove under heating, and enabling the porous aerogel particles to roll down along the bevel groove paved with hot melt adhesive powder to obtain aerogel; and (2) loading n-pentane to obtain the hot-pressed self-adhesive aerogel. According to the preparation method, firstly, hot melt adhesive powder with a small particle size is attached to the surfaces of porous aerogel particles with a large particle size in a dispersion mode, the obtained aerogel has the hot-pressing self-adhesion characteristic, adhesion can be achieved only through simple hot pressing, and by means of the mode, the use amount of hot melt adhesive can be reduced on the premise that the bonding strength is not obviously affected; therefore, the influence on the porosity of the aerogel layer after the hot melt adhesive is molten is avoided. The n-pentane is loaded before the aerogel is used, so that the porosity of the porous aerogel particles can be improved during hot pressing.
本发明涉及隔热材料领域，本发明公开了一种热压自粘型气凝胶及隔热材料。该热压自粘型气凝胶的制备包括：（1）在加热下于斜面槽顶部施加多孔气凝胶颗粒并使其沿铺撒有热熔胶粉体的斜面槽滚落，得到气凝胶；（2）负载正戊烷，得到热压自粘型气凝胶。本发明先将粒径较小的热熔胶粉体以弥散方式附着于粒径较大的多孔气凝胶颗粒表面，所得气凝胶具有热压自粘特性，只需简单热压即可粘合，该方式可在不明显影响粘结强度的前提下降低热熔胶用量，从而避免热熔胶熔融后对气凝胶层孔隙率的影响。本发明在气凝胶使用前负载正戊烷，能够在热压时提高多孔气凝胶颗粒的孔隙率。
Hot-pressing self-adhesive aerogel and thermal insulation material
一种热压自粘型气凝胶及隔热材料
CHEN MIAOGEN (Autor:in) / ZHANG HONGSHENG (Autor:in) / ZHANG YOUQING (Autor:in)
27.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME