A kind of attapulgite composite glass fiber core material and preparation method thereof

Abstract

The invention discloses an attapulgite composite glass fiber core material and a preparation method thereof. The core material uses glass fiber as a matrix, and the mass fraction is 60% to 78%. Between the pores of the glass fibers, 15% to 25% of bird's nest nanorod crystal attapulgite, 5% to 10% of layer chain attapulgite aerogel and 2% to 5% of binder are doped. The composite core material of the present invention can effectively utilize the bird's nest microstructure of nano-rod crystal attapulgite and the layer-chain nanofiber structure of attapulgite airgel to optimize the micron-based microstructure of the glass fiber core material. By adjusting the pore classification and pore size of the glass fiber core material, the structural stability and thermal insulation performance are improved, while the air pressure sensitivity is reduced, and the service life of the vacuum insulation panel is prolonged. In addition, the nano-rod attapulgite has excellent properties such as corrosion resistance, high temperature resistance and environmental protection, so that the composite core material can be used at higher temperatures.

Description

Technical field

[0001] The present invention relates to a method for preparing glass fibers, and more particularly to a composite fiberglass core attapulgite and preparation method. Background technique

[0002] Attapulgite, palygorskite, also known is a hydrated magnesium silicate mineral-rich, preferably its chemical formula was: Mg 5 Si 8 O 20 (HO) 2 (OH 2 ) 4 · 4h 2 O. Attapulgite fibrous porous crystalline form, because of its good adsorption, purification, bonding, bleaching properties, are widely used in chemical industry, textiles, building materials, environmental protection. Our attapulgite rich in mineral resources and excellent performance. As requirements increase, natural attapulgite due to impurities, structural defects such as scattering gradually replaced by crystalline nanorods attapulgite. Attapulgite crystal nanorods in resistance to corrosion, high temperature, insulation, environmental protection and exhibiting excellent performance. Most natural crystal nan...

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