Open AccessHeat resistance of basalt fiber enhanced by silicious-fluoric-PAA hybrid sizing agent
Author(s) -
Z T Wang,
Hongjie Luo,
Qing He,
Hua Jiang
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1347/1/012015
Subject(s) - basalt fiber , materials science , composite material , ultimate tensile strength , fiber , sizing , emulsion , aqueous solution , filtration (mathematics) , chemical engineering , chemistry , statistics , mathematics , organic chemistry , engineering
Basalt fiber, as a high strength and good temperature resistance inorganic material, has an excellent application in the high temperature filtration industry, but its strength retention decreases obviously with time going when baked at temperature above 300°C. This limits the range of its application as a filter material. In this paper, the sizing agent was prepared by mixing polytetrafluoroethylene, silane coupling agent, polyacrylate acid, polysilicic acid and polyurethane crosslinking agent in aqueous solution together, and then the surface of basalt fiber was coated by the sizing agent. The experiment results showed that the emulsion droplets formed in the aqueous solution had small particle size and good dispersibility. The initial decomposition temperature of the film formed by the sizing agent was 220°C. The initial tensile strength of the coated basalt fiber was 60% higher than that of the uncoated fiber at room temperature. The residual strength of the coated fiber was 6 times higher than that of the uncoated fiber when treated at 340°C for 10 hours.