1本標(biāo)準(zhǔn)修訂后將代替GB/T7131—19本標(biāo)準(zhǔn)由中國(guó)石油天然氣股份有限公司石油化試驗(yàn)方案；國(guó)家合成橡膠質(zhì)量監(jiān)督檢驗(yàn)中心參與驗(yàn)證論。本項(xiàng)目負(fù)責(zé)人匯報(bào)了國(guó)家標(biāo)準(zhǔn)GB/T7131-1986《塑料聚合物鑒定裂解氣相色譜法》修訂的前期準(zhǔn)備情況和前期試驗(yàn)結(jié)果，并討2TC15/SC4)在四川省成都市召開了第一次工作組會(huì)議。負(fù)責(zé)人GB/T7131-1986《塑料聚合物鑒定裂解氣相色譜法》修訂工成都檢測(cè)技術(shù)有限公司、國(guó)家合成橡膠質(zhì)量監(jiān)督檢驗(yàn)料有限公司、金發(fā)科技股份有限公司、河北尚②色譜條件的優(yōu)化，重點(diǎn)是色譜柱長(zhǎng)度、柱溫和各單位廣泛征求意見，同時(shí)在全國(guó)標(biāo)準(zhǔn)信息公共3GB6028-1985《硫化橡膠中聚合物的鑒定裂解氣相ISO5475:1978Rubber—IdentificationofISO7270-1:2020RubberAnalysisbypyrolyASTMD3452-06(2021)StandardPracticeforRubber—IdentificatibyPyrolysis-GasChromato本標(biāo)準(zhǔn)修訂基于現(xiàn)今熱裂解-氣相色譜發(fā)展技術(shù)，4②通過不同樣品試驗(yàn)，開展色譜柱、色譜柱溫度、裂④在確定分析條件下，測(cè)定已知樹脂或樹脂混合物的①修改標(biāo)準(zhǔn)名稱，原標(biāo)準(zhǔn)名稱“裂解氣相色譜法②采用非極性、弱極性毛細(xì)管色譜柱分離裂解產(chǎn)品本標(biāo)準(zhǔn)修改GB/T7131:1986《塑料5無6《塑料聚合物鑒定裂解氣相色譜法》試驗(yàn)總結(jié)收集的樣品由中中國(guó)石油天然氣股份有限公司石油化工研究院有限公司、金發(fā)科技有限公司、尚華新材料、等提供，樣ABSMABSASA考察的主要參數(shù)：裂解溫度、色譜柱、色譜7________L________LLL______ 8 通過比較，PC、HIPS、ABS在500℃、559選擇裂解溫度600℃,對(duì)于難裂解的樹脂或塑料制品，可以適當(dāng)提高裂解溫度。合物混合物)的鑒定》的試驗(yàn)，選擇非極性、弱極性色譜柱，因?yàn)榉菢O性和弱極性使用溫度高，而極性色譜柱使用溫度相對(duì)低，塑料裂解產(chǎn)物中有一定量的高沸點(diǎn)組分果使用的色譜柱使用溫度不夠高，會(huì)影響高沸點(diǎn)組分的分析或分析時(shí)間過長(zhǎng)。色譜柱ABS柱溫條件D ABS柱溫條件CABS柱溫條件B 柱溫條件試驗(yàn)表明，初始溫度40℃時(shí)，丙烯、丁二烯、丙烯夠理想；初始溫度35℃時(shí)，丙烯、丁二烯、丙烯腈等等色譜柱規(guī)格：30m×0.25mm×0.2μmmin） 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