利用废塑制餐盒复合花岗石等饰面保护膜

花岗石坚硬致密、强度高、磨光面色彩亮丽，所以大量用作饰面材料。但花岗石中也经常含有少量铁的硫化物和氧化物，这些含铁矿物在水、水蒸气、氧的作用下会演变为Ｆｅ（ＯＨ）３，使花岗石饰面染上污斑。利用白色垃圾———一次性塑制餐具研制的防腐剂处理花岗石和易受腐蚀的各种材料的饰面后，均可形成一层保护膜。此种保护膜无色透明、无毒无味，既防腐蚀又提高了饰面光洁度。

USING DISPOSABLE PLASTIC CANTEEN TO MAKE A PROTECTIVE COAT OVER DECORATIVE SURFACE OF GRANITE

Due to its hardness,compactness,high intensity and gay colours on the polished surface,granite is largely used as material for decorative surfaces.But granite also contains quite often some ironic sulfide and oxidized minerals.These iron containing minerals may change into Fe(OH)3 under the effect of water,water vapour and oxygen,resulting in the formation of stains on the decorative surface of granite.To give a treatment of the decorative surface of granite and other kinds of materials subject to corrosion,the corrosion inhibitor made of disposable plastic canteen will lead to the formation of a layer of protective coat which is colorless,transparent,and non toxic.This protective coat has the function of preventing from corroding as well as improving brightness.