| 摘要 |
<p>The plastic filler composition according to the present invention comprises: (i) 60-90 % by weight of inorganic oxide powder made of at least two materials selected from the group consisting of kieselguhr, clay, quartz, feldspat, dolomite, pearlite, pumice and benthonite, thereby containing 60-90 % by weight of silicon oxide, 1-7 % by weight of iron oxide, 2-10 % by weight of aluminium oxide, 1-5 % by weight of manganese oxide, 1-5 % by weight of magnesium oxide, 2-6 % by weight of titanium oxide, and 1-5 % by weight of sodium chloride, and (ii) 40-10 % by weight of a polymer resin. The plastic filler composition is prepared in pellets by mixing the inorganic oxide powder and polymer resin, and extruding the mixture. The plastic film according to the present invention is prepared from the mixture of: (a) 10-50 % by weight of the plastic filler composition and (b) 90-50 % by weight of the polymer resin. The plastic film is biodegradable to microorganisms and photodegradable upon exposure to the ultraviolet lights, and does not discharge contaminants during incineration.</p> |
