CAJ | 학술논문

采用热裂解气相色谱-质谱联用技术（Py／GC-MS）建立了聚乳酸（PLA）纤维和3种聚酯纤维（聚对苯：二甲酸乙二酯（PET）纤维、聚对苯：二甲酸丙：二酯（PTT）纤维、聚对苯二甲酸丁二酯（PBT）纤维）的鉴别方法。裂解温度为700℃时，可以最大限度同时显示聚乳酸纤维和聚酯纤维样品特征。PLA纤维、PET纤维、PTT纤维和PBT纤维分别鉴别出8种、14种、16种和13种主要裂解产物。PLA纤维的特征性裂解产物是：D，L-丙交酯、内消旋丙交酯；PET纤维的特征性裂解产物是：苯甲酸乙烯酯、苯二甲酸双乙烯酯、-苯甲酸-1，2-乙二醇酯、苯甲酸乙酯；PTT纤维的特征性裂解产物是：苯甲酸丙烯酯、间苯二甲酸二烯丙酯、1，4-苯二甲酸-三-2-丙烯基酯、二苯甲酸-1，3-丙二醇酯；PBT纤维的特征性裂解产物是：苯甲酸丁烯酯、1，4-苯=甲酸-双-3-1烯酯。
채용열렬해기상색보-질보련용기술（Py／GC-MS）건립료취유산（PLA）섬유화3충취지섬유（취대분：이갑산을이지（PET）섬유、취대분：이갑산병：이지（PTT）섬유、취대분이갑산정이지（PBT）섬유）적감별방법。렬해온도위700℃시，가이최대한도동시현시취유산섬유화취지섬유양품특정。PLA섬유、PET섬유、PTT섬유화PBT섬유분별감별출8충、14충、16충화13충주요렬해산물。PLA섬유적특정성렬해산물시：D，L-병교지、내소선병교지；PET섬유적특정성렬해산물시：분갑산을희지、분이갑산쌍을희지、-분갑산-1，2-을이순지、분갑산을지；PTT섬유적특정성렬해산물시：분갑산병희지、간분이갑산이희병지、1，4-분이갑산-삼-2-병희기지、이분갑산-1，3-병이순지；PBT섬유적특정성렬해산물시：분갑산정희지、1，4-분=갑산-쌍-3-1희지。
An identification method of poly（lactic acid） fiber and three polyester fibers was established by pyrolysis gas chromatography - mass spectrometry （Py/GC-MS）. The polyester fibers includes polyethylene terephtalate （PET） fiber, polytrimethylene terephthalate （PTT） fiber and polybutylene terephthalate （PBT） fiber. As shown by the experimental results, it was better to choose 700 ℃as the pyrolytic temperature in the identification, as more significant characteristic informations were displayed simultaneously. PLA fiber, PET fiber, VFT fiber and PBT fiber were identified 8 species, 14 species, 16 species and 13 species of main pyrolysis products. PLA fiber＇s characteristic pyrolysis products were meso-laetide and D,L-lactide. PET fiber＇s characteristic pyrolysis products were vinyl benzoate, diethylene terephthalate, dibenzoate- 1,2 -ethanediol and ethyl benzoate. FIT fiber＇s characteristic pyrolysis products were propenyl benzoate, diallyl isophthalate, diallyl terephthalate and 1,3-propanediol dibenzoate. PBT fiber＇s characteristic pyrolysis products were butenyl benzoate and bis-3-butenyl- 1,4-terephthalate.