Preparation And Research Of Anti-mould PE Films

An anti-mould PE film was made in this study and Nano-TiO₂ was added into the film as an sdditive agents. Nano-TiO₂ was easy to reunion in PE film so the test modified the surface of nano- TiO₂ ,and it made the film using on anti-mould. Then the dispersibility of the film is tested.First of all, nano- TiO₂ as inorganic was easier by modification in the organic materials and the surface of nano- TiO₂ was modified by silane and titanate coupling agent. UV spectrophotometry and SEM were used to characterize the nano- TiO₂ before and after the modification. Then anti-mould properties of PE film were determined.Secondly, we had chosen 6 kinds of nano-TiO₂ and the modified nano-TiO₂ was used for preparation of polyethylene (PE) film with PE plastic,and the physics function and H₂O passing function were tested. And we tseted the grade of anti-mould according country' s standards.Finally,the NO.5 film, NO.1 film and films which bought at the market were used to fresh rapes and at 20℃. Investigate and recording the content of Vc,etiolated rate of rapes,and the content of CO₂ and O₂ in the plastic bag were tested. According to the data we could know the function of the film was attained the demand of commodity.Above all,according the test we will know the relations between modification and the function of the film more clearly. We can make the technology better.