| 不同老化模式对光伏背板中PET结晶度的影响 |
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| 引用本文： | 唐景,彭丽霞,张增明,傅冬华.不同老化模式对光伏背板中PET结晶度的影响[J].合成材料老化与应用,2011,40(2):40-46. |
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| 作者姓名： | 唐景 彭丽霞 张增明 傅冬华 |
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| 作者单位： | 常熟阿特斯阳光电力科技有限公司测试中心,江苏常熟,215562 |
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| 摘 要： | 分别研究了在湿热老化、加速湿热老化、紫外辐照老化模式下,背板力学性能和PET层结晶度的变化,归纳了背板失效与其PET层结晶度的关系,并对几种老化模式进行了比较.结果表明,湿热老化和加速湿热老化时,PET层趋于结晶,为了保证背板不失效,结晶度应该控制在38%以下;紫外辐照老化时,分子结构破坏为主导,通过比较力学性能发现,...
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| 关 键 词： | 光伏背板 湿热老化 加速湿热老化 紫外辐照 PET结晶度 |
Crystallinity of PET in Photovoltaic Backsheet Under Different Ageing Pattern |
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| TANG Jing,PENG Li-xia,ZHANG Zeng-ming,FU Dong-hua.Crystallinity of PET in Photovoltaic Backsheet Under Different Ageing Pattern[J].Synthetic Materials Aging and Application,2011,40(2):40-46. |
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| Authors: | TANG Jing PENG Li-xia ZHANG Zeng-ming FU Dong-hua |
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| Affiliation: | (CSI Photovohaic Testing Laboratory, Changshu 215562 ,Jiang su ,China) |
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| Abstract: | In this paper, mechanical properties and PET crystallinity of PV backsheet after damp heat ageing, accelerated damp heat ageing and UV irradiation ageing were studied. Relationship between failure of backsheet and crystallinity of PET layer was concluded. The different ageing patterns above were compared. The results show that, in precess of damp heat ageing and accelerated damp heat ageing, PET layer go crystallizing, and crystallinity should be controlled under 38% for backsheet without failure. In precess of UV irradiation ageing, Molecular structure of PET was destroyed. By comparing the mechanical properties, we found that UV irradiation ageing gave greater influence to PET layer of PV backsheet. |
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| Keywords: | PV backsheet damp heat ageing accelerated damp heat ageing UV irradiation crystallinity ofPET |
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