Studies on the Durable Antistatic Agent for PET Fibers. 1. Preparation of Antistatic Agents on the basis of Acrylic Copolymer
Park HS, Kim YG, Kim JT, Bea JS, Choi HC
PET 섬유용 내구성 대전방지제에 관한 연구. 1. 아크릴 공중합체를 주제로 하는 대전방지제의 제조
박홍수, 김영근, 김준택, 배장순, 최희천
Abstract
Poly(DMAC-MAA) copolymer was synthesized by copolymerizing N-methylolacrylamide(MAA) with quaternized 2-dimethylaminoethylmethacrylate(DMAC). An antistatic agent for PET woven fabrics was prepared by blending water soluble poly(DMAC-MAA) with lithium chloride and sodium gluconate. The optimum condition for the preparation of DMAC was found by reacting DMA and AcOH having 1 : 1 mole ratio for 60 min. at 80℃, and the best antistatic characteristics was obtained by using poly(DMAC-MAA) prepared from the reactants of DMAC and MAA of 4 : 1 for 3 hrs at 70℃. Surface resistance, frictional voltage, and half life of 100% woven fabrics of PET textured yarn were measured. Surface resistance values of ANTA-3 and ANTA4 were 7×106, 4×106Ω, and frictional voltage characteristics values 45, 29V, and half life characteristics values 1.2 and 0.7 sec. respectively.
2-dimethylaminoethylmethacrylate(DMA)의 4차염(DMAC)을 제조한 다음 N-methylolacry amide(MAA)와 공중합시켜 모체수지 poly(DMAC-MAA)를 합성하고, 합성된 수용성 공중합체에 높은 흡습성을 가진 lithium chloride와 sodium gluconate를 블렌딩시켜 PET섬유용 대전방지제(ANTA)를 제조하였다. DMAC 제조시 최적반응조건은 DMA와 AcOH의 반응물 몰비가 1 : 1인 상태에서 80℃로 60분간 반응시킨 경우였고, poly(MAC-MAA)합성시에는 DMAC와 MAA의 반응물 몰비 가 4 : 1로서 70℃에서 3시간 중합시키는 것이 대전방지 효능면에서 최적의 반응조건이었다. ANTA를 100% PET가공사직물에 처리하여 표면저항, 마찰대전압 및 반감기 등을 측정한 결과 ANTA-3과 ANTA-4는 표면저항치가 7×10<6, 4×106Ω, 마찰대전압 특성치가 45V와 29V였고 반감기 특성치는 1.2sec와 0.7sec로 각각 나타났다.
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