ATBC (tributyl acetylcitrate) is a non-toxic plasticizer with strong solubility, oil resistance, light resistance and mildew resistance. Mainly used as plasticizer for PVC, cellulose resin, vinyl resin and synthetic rubber.
ATBC is the most economical environmental protection plasticizer in PVC plastic industry at present. Its plasticizing effect is equivalent to DOP and DINP, and ATBC can almost replace DOP.
95% of the products in the market are PVC (polyvinyl chloride) erasers, and each PVC eraser contains about 20% DEHP (diisooctyl phthalate). DEHP can make the eraser brighter in color, smoother in texture, softer and more elastic, and it will also emit various fragrances. Erasers are the same as plastic wrap, which are poisonous PVC erasers, nontoxic SBS erasers made of PE (polyethylene), and traditional erasers are made of rubber.
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Rubber production process
1. Oil processing plants transport synthetic rubber in powder or liquid form to rubber manufacturing plants. To use natural rubber, it is strong and big, and workers must first break it and dissolve it.
2. Mix the rubber with ground pumice powder (which can make the rubber slightly hard), iron oxide (which can make the rubber pink), vegetable oil, sulfur and other substances.
3. Heat the mixture to mix sulfur with rubber, so as to increase the strength of rubber and make it more durable.
4. Feed the soft and still warm raw materials into a punching machine (squeeze them into a mold) to make a slender rubber rod. Cut the glue stick into small pieces with a knife, wait for it to cool, and then transport it to the pencil factory to make the eraser on the pencil.
5. Bulk rubber used alone is made by injecting heated rubber mixture into molds of various shapes. After cooling, the mold is opened and erasers of various shapes come out.
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