聚碳酸酯（ PC）和丙烯腈-丁二烯-苯乙烯共聚物（ ABS）是两种广泛应用的热塑性工程塑料。在这项研究中，一种PC树酯和一种ABS树脂在不同温度下加工或加工多次。用流变仪来进行模拟加工。为研究加工对树脂中添加剂的影响，用气相色谱-质谱（ GC-MS）来分析加工前后树脂的提取液。研究结果表明加工中添加剂会因分解和转化失去，特别是在高温下加工或加工几个周期后。
Polycarbonate ( PC) and acrylonitrile-butadiene-styrene ( ABS) are two engineering thermoplastics widely used.In the present study ,a PC resin and an ABS resin were processed at different temperatures or for dif-ferent number of cycles.A rheometer was used to simulate reprocessing.To study the effect of processing on the additives in resin ,gas chromatography-mass spectrometry ( GC-MS) was used to analyse the extracts from the resins before and after processing.It was found that processing led to additive loss because of decomposition or conver -sion,particularly at high temperatures or during multiple processing.
参考文献
| [1] | 辛忠.材料添加剂化学[M].北京:化学工业出版社,2010:7-8. |
| [2] | X. Bai;B.K. Stein;K. Smith .Effects of Reprocessing on Additiwes in ABS Plastics, Detected by Gas Chromatography/Mass Spectrometry[J].Progress in Rubber,Plastics and Recycling Technology,2012(1):1-14. |
| [3] | C Nerín;J Salafranca;C Rubio et al.Multicompo-nent recycled plastics:considerations about their use in food contact applications[J].Food Additives and Contaminants,1998,15(7):842-854. |
| [4] | Bai XJ;Isaac DH;Smith K .Reprocessing acrylonitrile-butadiene-styrene plastics: Structure-property relationships[J].Polymer engineering and science,2007(2):120-130. |
| [5] | Bei?mann, S.;Stiftinger, M.;Grabmayer, K.;Wallner, G.;Nitsche, D.;Buchberger, W. .Monitoring the degradation of stabilization systems in polypropylene during accelerated aging tests by liquid chromatography combined with atmospheric pressure chemical ionization mass spectrometry[J].Polymer Degradation and Stability,2013(9):1655-1661. |
| [6] | Reingruber, E;Himmelsbach, M;Sauer, C;Buchberger, W .Identification of degradation products of antioxidants in polyolefins by liquid chromatography combined with atmospheric pressure photoionisation mass spectrometry[J].Polymer Degradation and Stability,2010(5):740-745. |
| [7] | Vilaplana, F;Ribes-Greus, A;Karlsson, S .Chromatographic pattern in recycled high-impact polystyrene (HIPS) - Occurrence of low molecular weight compounds during the life cycle[J].Polymer Degradation and Stability,2010(2):172-186. |
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