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溫度對(duì)氣調(diào)包裝薄膜透氣性的影響
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國(guó)家自然科學(xué)基金資助項(xiàng)目（30871757）;山東省自然科學(xué)基金資助項(xiàng)目（Y2006D33）


Effects of Temperature on Gas Permeability of Films for Modified Atmosphere Packaging
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    摘要:

    通過(guò)小袋法測(cè)定了不同材料薄膜分別在2、8、14、20℃下的薄膜透氣系數(shù)，分析了溫度對(duì)薄膜透氣系數(shù)和透氣系數(shù)比的影響。試驗(yàn)得出：隨著溫度的升高果蔬包裝薄膜的透氣系數(shù)增大，薄膜材料LDPE的透氣系數(shù)比顯著上升，但薄膜材料PVC的透氣系數(shù)比在試驗(yàn)溫度范圍內(nèi)呈現(xiàn)不同的變化趨勢(shì)。薄膜透氣系數(shù)與絕對(duì)溫度之間滿足Arrhenius方程，透氣系數(shù)的自然對(duì)數(shù)值與絕對(duì)溫度的倒數(shù)值之間呈顯著的線性關(guān)系。

    Abstract:

    The gas permeability coefficients of different material films at 2,4,8 and 20 ℃ were measured by small bags method. The influences of temperature on the gas permeability coefficient and gas permeability coefficient ratio were analyzed. The results suggested that the gas permeability coefficients of films increases with temperature; as the temperature increased, the gas permeability coefficient ratio of LDPE significantly increases, while the gas permeability coefficient ratio of PVC shows different changing trends at the experimental temperature. The relationship between permeability coefficients and temperature well accords with Arrhenius equation, and a linear relationship lies between nature logarithmic of gas permeability coefficient and the reciprocal of temperature.

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李霞,王相友,王娟.溫度對(duì)氣調(diào)包裝薄膜透氣性的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(2):113-116. Li Xia, Wang Xiangyou, Wang Juan. Effects of Temperature on Gas Permeability of Films for Modified Atmosphere Packaging[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(2):113-116.

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