Differentiation between PVC material and PS material
Polyvinyl chloride (PVC)
Application: cling film, plastic shoes and leather products, films, cables, plastic bags.
Features: Hard plastic, commonly used in the industrial field.
Toxicity: Made of cling film, plastic bags and other soft plastics, you must add a lot of auxiliary materials, some are toxic, this material is harmful substances released may cause cancer.
Density of 1.4 g / cm3, the melting temperature of 120 to 210 degrees Celsius, insoluble in common organic solvents such as hydrocarbons, alcohols and esters, etc., can be dissolved in tetrahydrofuran, methyl ethyl ketone, cyclopentanone, nitrobenzene, dimethyl Sulfoxide, etc., have good acid and alkali resistance.
Applications: disposable plastic tableware, combs, boxes, ballpoint pens, children's toys, plastic shopping bags.
Features: High transparency, surface gloss.
Toxicity: The material itself is non-toxic. Disposable tableware will be heavily used banned additives such as heavy metals, and food contained in the water, vinegar, oil dissolved into each other, may lead to indigestion, local pain and liver diseases and other diseases, affecting children's intellectual development , Severe cases can lead to gallstones, heavy metal poisoning and even cancerous cells. If the cutlery contains industrial paraffin, it may even cause cancer.
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