Plasticizers | additives feature
Tensile properties of soft PVC plasticized with DEHP and Placard Tensile strength (MPa) 6.533 ± 1.538 8.788 ± 0.772
Soft PVC with DEHP Soft PVC with Placard
have low modulus, low Tg and high molecular weight that together will improve the ductility of PVC and maintain or improve toughness at the same time. Oxea says that it is optimistic about an increasing
demand for materials based on renewable resources. Earlier this year, it launched its bio-based Oxblue product line, including DOSX (dioctyl succinate) and ATBC, to address the requirement for sensitive uses such as food packaging and children’s toys. Succinic plasticizers are also available from
Proviron. The company says its Proviplast 25109 and Proviplast 25110 grades, which are asymmetric types due for launch in Q3 of this year, outperform alternative symmetric succinic acid based plasticizers. It says that both these and its PLS Green Series based on vegetable oils “demonstrate excellent cold flex behaviour as well as very good processability”.
Elongation at break 1.740 ± 0.487 1.919 ± 0.440
Tensile modulus (MPa) 8.965 ± 1.166 10.851 ± 1.362
Data from the University of Salento Galata Chemicals is another additives company
producing bio-based plasticizers. It introduced its Drapex Alpha range, based on natural oils, just over two years ago. Drapex Alpha 200E and Drapex Alpha 200CE are recommended for general purpose compounds designed for filled/coloured and clear/white applica- tions, respectively. Drapex Alpha 210E was designed to meet especially challenging low temperature flexibility requirements, while Drapex Alpha 220E is used in wire and cable insulation compounds. Mak Joshi and Peter Frenkel from Galata’s US
operation discussed the range at the PVC 2014 confer- ence in the UK. They compared the 200E grade with more traditional plasticizers, including DINP, DOTP, DINCH, and TOTM, and concluded: “In addition to being a source of renewable carbon in PVC compounds, the Drapex Alpha product range demonstrated economic
AMI Global Plastics Industry Seminars 2014
These one-day seminars are led by AMI’s research director, Andrew Reynolds, and provide invaluable insights into market trends and industry strategies. They are held in small groups and provide ample opportunities for questions and discussions.
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