What Is Biodiesel Plasticizer
What is ester plasticizers ?
Plasticizers used in PVC and other plastics are often based on esters of polycarboxylic acids with linear or branched aliphatic alcohols of moderate chain length. These compounds are selected on the basis of many critieria including low toxicity, compatibility with the host material, nonvolatility, and expense. Phthalate esters of straight-chain and branched-chain alkyl alcohols meet these specifications and are common plasticizers. Ortho-phthalate esters have traditionally been the most dominant plasticizers, but regulatory concerns have led to the move away from classified substances to non-classified which includes high molecular weight ortho-phthalates and other plasticisers, especially in Europe.
Dicarboxylic/tricarboxylic ester-based plasticizers include:
DEHP, DPHP, DINP, DnBP, DBP, DIDP, DIOP , etc
What are Bio-based plasticizers?
Plasticizers with better biodegradability and presumably lower environmental toxicity are being developed. Some such plasticizers are:
· Acetylated monoglycerides; these can be used as food additives
· Alkyl citrates, used in food packagings, medical products, cosmetics, and children's toys
o Epoxidized Soybean Oil (ESO)
o Epoxy Fatty Acid Methyl Ester (EFAME)
o Chlorinated Fatty Acid Methyl Ester (CFAME)
o Tributyl citrate (TBC)
o Acetyl tributyl citrate (ATBC),
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