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전자빔 에너지를 의한 수용액 중의 Cr<sub>+6</sub>이온 변환
김병남,이홍승,한도흥 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
In this study, aqueous Cr<sub>+6</sub> ion could be changed by electron beam irradiation(EBI) to Cr<sub>+3</sub>ion and/or insoluble Cr-chemicals. Only EBI required high dosages for changing of Cr<sub>+6</sub>. When Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub> being added into the aqueous Cr<sub>+6</sub>, it was easily changed to Cr<sub>+3</sub> and finally to insoluble species, in which maximum yield of Cr<sub>+3</sub> could reach to 100% around at 20-30kGy. High dosages above about 30 kGy suppressed formation of the insoluble Cr-chemicals. Addition of H<sub>2</sub>O<sub>2</sub>, strong oxidant, prohibited removal of Cr<sub>+6</sub>.
김병남,이홍승,한도흥 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
In this study, nylon and cotton fabrics could be modified by grafting acrylamide monomer upon the fabrics at dosages ranging from 0 to 100kGy using electron beam. Grafting yields increased with increase of dosages, in which chemical strength between monomer and fabric was considerably strong. The grafted fabrics shown excellent properties such as washing-fastness, moisture absorbance, water regain, and dye-fastness. Moisture absorbability of grafted nylon was superior to cotton above 10% of grafting yield and dye-fastness for the EB-grafted nylon was higher by three times than for untreated nylon.
전자빔에너지에 의한 수용액 중의 Cr^+6 이온의 변환
김병남,이홍승,한도흥 한국공업화학회 2002 응용화학 Vol.6 No.1
In this study, aqueous Cr^+6 ion could be changed by electron beam irradiation (EBI) to Cr^+3ion and/or insoluble Cr-chemicals. Only EBI required high dosages for changing of Cr^+6. When Na_2S_2O_3 being added into the aqueous Cr^+6, it was easily changed to Cr^+3 and finally to insoluble species, in which maximum yield of Cr^+3 could reach to 100% around at 20-3OkGy. High dosages above about 30 kGy suppressed formation of the insoluble Cr-chemicals. Addition of H_2O_2, strong oxidant, prohibited removal of Cr^+6.
김병남,이홍승,한도흥 한국공업화학회 2002 응용화학 Vol.6 No.1
In this study, nylon and cotton fabrics could be modified by grafting acrylamide monomer upon the fabrics at dosages ranging from 0 to 100kGy using electron beam. Grafting yields increased with increase of dosages, in which chemical strength between monomer and fabric was considerably strong. The grafted fabrics shown excellent properties such as washing-fastness, moisture absorbance, water regain, and dye-fastness. Moisture absorbability of grafted nylon was superior to cotton above 10% of grafting yield and dye-fastness for the EB-grafted nylon was higher by three times than for untreated nylon.