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The compounds use tris (2-ethylhexyl) trimellitate (TOTM), acetyl tributyl citrate (ATBC) and dioctyl terephthalate (DOTP) as alternatives to orthophthalate plasticisers. TOTM, which Teknor Apex said is a high-performing alternative to other non-DEHP plasticisers, shows the least extractability from the PVC matrix and greatest resistance to

By comparison, DOTP is listed at 500-700 milligrams, making it 100 to 140 times safer than DEHP for rodents and five to seven times safer than TOTM. The same study listed NOAELs for ATBC (acetyl tributyl citrate), DINCH (di-isononyl cyclohexanoate), and DOA (di-octyl adipate) plasticizers at 100, 107, and 200, respectively.

Here, five types phthalate free plasticizers; trioctyl trimelliate (TOTM), tributyl trimelliate (TBTM), dioctyl terephthalate (DOTP), dioctyl adipate (DOA) and dioctyl succinate (BIO) were used to obtain PVC films and artificial leathers including three different plasticizers compositions, 40 phr, 60 phr and 80 phr. Fig. 1 shows chemical

Table I. Performance of plasticizers compounded to a standard modulus (0.5-mm film). Study 2 took a different approach, holding the amount of plasticizer in the compound constant for all plasticizer types and allowing the hardness and modulus to vary. 2 The ingredients were mixed and then placed on a two-roll mill for 5 to10 minutes at 163°–171°C.

Such applications can include vinyl automotive interior or molded parts, dishwasher gaskets, seals, and telephone wire. A stabilizer can be added to TOTM, making it useful in electrical or cable & wire applications. TOTM also works well in blends with other plasticizers with low-volatility including DUP or DOTP.