将一种农用LLDPE(线性低密度聚乙烯)/LDPE(低密度聚乙烯)薄膜进行加速和自然老化,对羰基含量、熔点和高温剪切模量以及老化时间的关系进行了研究.从老化薄膜IR(红外光谱)图上可以得到两种羰基指数-I1和I2.可以用I1和I2来表征LLDPE/LDPE薄膜的老化程度.本文还对人工老化和自然老化的相互关系进行了研究,加速老化1小时相当于自然老化10.73小时.
参考文献
| [1] | F S Qureshi;S.H.Hamid;A.G.Maadhah;MohamadB.Amin .Weather-Induced Degradation of Plastic Pipes[J].Polymer-Plastics Technology and Engineering,1989,28(7-8):663-670. |
| [2] | Michel Cordonnier .LLDPE UV ageing[J].Plastics and Rubber Processing and Applications,1987,8:23-27. |
| [3] | E M Abdel-Bary;M.N.Ismail;A.A.Yehia;A.A.Abdel-Hakim .Recycing of polyethylene films used in greenhouses-development of multilayer pastic films[J].Polymer Degradation and Stability,1998,62:111-115. |
| [4] | M Lassiaz;J Pouyet;J Verdu .Effect of photochemical ageing on the tensile properties and behavior law of unstabilized films of low-density polyethylene[J].Journal of Materials Science,1994,29:2177-2181. |
| [5] | A Ram;T.Meir;J.Miltz.Durability of polyethylene filmsIntern[J].Journal of Polymer Materials,1980:323-336. |
| [6] | C Sadrmohaghegh;G.Scott.C.Sadrmohagheghand G.Scott .The effects of reprocessing on polymers-1Low density polyethylene[J].European Polymer Journal,16:1037-1042. |
| [7] | M U Amin;G.Scott .Photo-initiated oxidation of polyethylene effect of photo-sensitizers[J].European Polymer Journal,1974,10:1019-1028. |
| [8] | Amin MB.;Khan JH.;Hamid HS. .PHOTO-OXIDATIVE DEGRADATION OF POLYETHYLENE GREENHOUSE FILM IN A HARSH ENVIRONMENT[J].Polymer Engineering Reviews,1995(4):253-267. |
| [9] | Khirud B Chakraborty;Ferald Scott .The effects of thermal processing on the thermal oxidative and photo-oxidative stability of low desity polyethylene[J].European Polymer Journal,13:731-737. |
| [10] | M Bakar;B.Hamadi;R.Rahma .Natural and aritificial weathering of low density polyethylene-based thermal films[J].Journal of Applied Polymer Science,Applied Polymer Symposium,1994,55:25-36. |
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