| abstract |
The present invention relates to plastic production field, and in particular to a kind of preparation method of uvioresistant PVC shrink films, solves the problems, such as that PVC shrink films uvioresistant performance is poor in the prior art.The application preparation method carries out polyvinyl chloride resin powder as the low temperature plasma of dielectric barrier discharge using ceramics the processing of short time, on the one hand polyvinyl chloride resin powder surface is modified, so that surface texture is relatively rough, mutually isolated effect can be played between nano-titanium dioxide and nano granular of zinc oxide, improve the dispersion performance of nano particle ultraviolet light screener, on the other hand, plasma pretreatment in preparation method of the present invention does not interfere with the bulk properties of PVC material, and ink is enabled fully to soak base material in printing process, be conducive to inking.The uvioresistant PVC shrink films prepared by the application method can be shunk, good seal performance, and have good uvioresistant performance, and ultraviolet ray transmissivity is low. |