【摘要】 研究了常用的塑料薄膜包装材料经微波处理不同时间后其透氧率、透湿率的变化规律。研究结果表明,塑料单膜随微波处理时间增加,透氧率明显增大,而复合薄膜透氧率变化较小;透湿率变化正好相反,微波处理相同时间后,复合薄膜透湿率增长明显大于塑料单膜。更多还原

【Abstract】 The changing rule of oxygen and moisture permeability of common plastic film treated by microwave was studied.It was proved that the oxygen permeability of single plastic film change greater than compound film with microwave treatment time increase;contrary to the changing of oxygen permeability,the moisture permeability of compound film change greater than single film.更多还原