Preparation of Non-flammable Wiper Paper by Simple H3PO3 Treatment
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초록
A thin and porous non-flammable wiper was prepared by phosphorus acid solution treatment and subsequent oven annealing. The H3PO3 treatment improved flame retardancy of wiper paper to nonflammable level. Thermogravimetric analyses showed that residues increased to 50% at 700°C, which means this treatment helps dehydration of the cellulose chain and promotes the formation of char-like structures during the burning. FT-IR and X-ray photoelectron spectroscopy showed that some of the added H3PO3 could react with the functional groups of the cellulose chain. The reacted H3PO3 components promote dehydration of the cellulose components and the formation of a char-like structure and improve the flame retardancy of the wiper paper.
Abstract
A thin and porous non-flammable wiper was prepared by phosphorus acid solution treatment and subsequent oven annealing. The H3PO3 treatment improved flame retardancy of wiper paper to nonflammable level. Thermogravimetric analyses showed that residues increased to 50% at 700°C, which means this treatment helps dehydration of the cellulose chain and promotes the formation of char-like structures during the burning. FT-IR and X-ray photoelectron spectroscopy showed that some of the added H3PO3 could react with the functional groups of the cellulose chain. The reacted H3PO3 components promote dehydration of the cellulose components and the formation of a char-like structure and improve the flame retardancy of the wiper paper.
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