| 光谱学与光谱分析 |
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| Preparation of EVOH Film and Infrared Spectroscopic Study of Its Heat Preservation Property |
| CUI Hai-long1, 3，WANG Zhao-hui2，JIAO Hong-wen3，LU Shi-xiang1，XU Wen-guo1 |
1. Chemistry Department, School of Science, Beijing Institute of Technology, Beijing 100081, China
2. Guangdong Huanan Fine Chemical Research Institute，Xinhui 529141, China
3. Beijing Huadunxuehua Plastics Corporation Co., Ltd., Beijing 100160，China |
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Abstract EVOH, PE and EVA films were prepared by extrusive blowing techniques, the optic capability, transmittance, haze, infrared anti-transmittance and heat preservation of the films were studied by IR spectroscopy and optic block. The result indicated that the haze degree of the EVOH film decreased about 10% and 5% compared to PE film and EVA film respectively, EVOH film’s transmission of IR is much less than other films in the 2.5～25 μm wavelength range, it is just 9.03% in 7～14 μm wavelength range, and about 27% less than EVA film, while much less than PE film. It was found that EVOH film has much better capability of infrared anti-transmittance and point-blank light transmission than other two kinds of films. It was good for calefaction and heat preservation of greenhouse.
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Received: 2010-06-23
Accepted: 2010-09-20
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Corresponding Authors:
CUI Hai-long
E-mail: cuihailong1976@sina.com
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