CAJ | 학술논문

利用气相色谱-质谱技术,分别对原膜OPP、印刷后的面层OPP/INK、面层与阻隔层复合材料OPP/INK/AD/VMPET、成品膜OPP/INK/AD/VMPET/AD/CPP中残留的有害物成分进行定性定量分析.研究结果表明:固相微萃取、超声提取、索式提取3种样品前处理方法中,超声提取方法既可用于定性分析,又可用于定量分析,而固相微萃取适合作为成品膜的定性分析,故选用超声提取为试样前处理方法;4种萃取溶剂对邻苯二甲酸单乙二醇酯的提取率依次为二氯甲烷>正己烷>甲醇/乙酸乙酯>丙酮;储存时间对面层基材中残留有害物乙酸丁酯的影响较大,对增塑剂邻苯二甲酸单乙二醇酯的影响较小,对印刷后的面层、中间层、成品膜中残留有害物的影响较大;相对含量较高的邻苯二甲酸单乙二醇酯主要来源于OPP/INK/AD/VMPET在干式复合工序中添加的化学助剂和黏合剂,乙酸丁酯主要来自印刷工序油墨中的有机溶剂,成品膜中邻苯二甲酸单乙二醇酯的残留量为38.74 mg/kg,乙酸丁酯的残留量为20.54 mg/kg.
이용기상색보-질보기술,분별대원막OPP、인쇄후적면층OPP/INK、면층여조격층복합재료OPP/INK/AD/VMPET、성품막OPP/INK/AD/VMPET/AD/CPP중잔류적유해물성분진행정성정량분석.연구결과표명:고상미췌취、초성제취、색식제취3충양품전처리방법중,초성제취방법기가용우정성분석,우가용우정량분석,이고상미췌취괄합작위성품막적정성분석,고선용초성제취위시양전처리방법;4충췌취용제대린분이갑산단을이순지적제취솔의차위이록갑완>정기완>갑순/을산을지>병동;저존시간대면층기재중잔류유해물을산정지적영향교대,대증소제린분이갑산단을이순지적영향교소,대인쇄후적면층、중간층、성품막중잔류유해물적영향교대;상대함량교고적린분이갑산단을이순지주요래원우OPP/INK/AD/VMPET재간식복합공서중첨가적화학조제화점합제,을산정지주요래자인쇄공서유묵중적유궤용제,성품막중린분이갑산단을이순지적잔류량위38.74 mg/kg,을산정지적잔류량위20.54 mg/kg.
Using the technology of gas chromatography-mass spectrometry, the qualitative and quantitative re-searches were conducted to analyze the harmful residue ingredients in the original film, the surface of OPP, OPP/INK after printing, the surface layer and barrier layer composite material of OPP/INK/AD/OPP/VMPET, finished product membrane of INK/AD/VMPET/AD/CPP. The results showed that in the three sample preparation methods of solid phase microextraction, ultrasonic extraction and Soxhlet extraction, ultrasonic extraction method could be used for both of qualitative and quanti-tative analysis, while solid phase microextraction could be used for qualitative analysis of finished films, therefore, ultra-sonic extraction was chosen for sample pretreatment; the extraction efficiency of four kinds of extraction solvent to phthalic acid glycol ester was methylene chloride > n-hexane/ethyl acetate > acetone > methanol. The influence of storage time is great on butyl acetate with residue on the surface of base material, less on plasticizer phthalic acid glycol ester, but great on harmful residues of the surface , interlayer and finished products. Most of phthalic acid glycol ester mainly came from added chemical agents and adhesives in OPP/INK/AD/VMPET in dry compound process, while butyl acetate were mainly from the organic solvent ink in the printing process. The residue of phthalic acid glycol ester in the finished film was 38.74mg/kg, and the residue of butyl acetate was 20.54mg/kg.