Bis(2-ethylhexyl) phthalate
Phthalate plasticizers are essential for the utility of PVC, which is too brittle otherwise. [8] Due to its suitable properties and the low cost, DEHP is widely used as a plasticizer in manufacturing of articles made of PVC. [8] Plastics may contain 1% to 40% of DEHP. It is also used as a hydraulic fluid and as a dielectric fluid in capacitors.
1 H NMR spectra of CP-52 and DOP-O-CP52. | Download
Chlorinated paraffin with chlorination levels of 52% (CP-52) was selected as an alkyl chloride because its chlorine content was similar to PVC. The purified, final DOP-like plasticizer from...
Eastman Plasticizers for PVC - Eastman Chemical Company
DOP Plasticizer Food Contact Status compliant – Eastman DOP plasticizer (Bis (2-Ethylhexyl) Phthalate) is a light colored, low volatility, odorless liquid. It is the most widely used all-purpose plasticizer offered by Eastman for use with PVC resins.
Review of Exposure and Toxicity Data for Phthalate Substitutes
The five chemicals identified by this report as the most likely o-DAP alternatives are acetyl tri-n-butyl citrate (ATBC), di(2-ethylhexyl) adipate (DEHA), 1,2- cyclohexanedicarboxylic acid, dinonyl ester (DINCH), trioctyltrimellitate (TOTM),and di(2-ethylhexyl) terephthalate (DEHT or DOTP).
What is the best alternative to DEHP for medical-grade PVC
A monomeric plasticizer, TOTM’s high molecular weight makes it less mobile than other alternative plasticizers and, for that matter, than DEHP. In spite of its chemical designation as a terephthalate, DOTP is classified as a non-ortho-phthalate, different from DEHP in terms of animal toxicology and metabolization, explains Galland.
- How does cp52 affect plasticization efficiency?
- With higher DOP-O-CP52 levels in PVC, CP52 in DOP-O-CP52 will form microclusters owing to their lower compatibility with PVC, to retard the movement of DOP-O-CP52 in PVC, resulting in a decline in plasticizing efficiency. Figure 6 shown the extraction of plasticized PVCs.
- Is DOP-o-cp52 a better plasticizer than DOP?
- Both Tgs were gradually reduced with the increased addition of plasticizer. DOP-O-CP52 has almost the same plasticizing efficiency as DOP within the ratio range (from 0 to 0.3) of plasticizer to PVC, which indicated the novel DOP-like plasticizer could have the same performance as DOP in many applications.
- Is cp52 better than DOP-o-cp52?
- A compromise is achieved using DOP-O-CP52, yielding PVC with no migration and high plasticization. CP52 appears to be a better choice for DOP. The interaction between CP52 and PVC is appropriately strong to maintain both the plasticization and nonmigration of DOP-O-CP52.
- Is cp52 a good plasticizer for PVC?
- However, stronger interactions between plasticizer and PVC will reduce its rate of diffusion in PVC, leading to lower plasticizing efficiency. A compromise is achieved using DOP-O-CP52, yielding PVC with no migration and high plasticization. CP52 appears to be a better choice for DOP.
- Why was cp-52 selected as an alkyl chloride?
- Chlorinated paraffin with chlorination levels of 52% (CP-52) was selected as an alkyl chloride because its chlorine content was similar to PVC. The purified, final DOP-like plasticizer from di (2-ethylhexyl)4-hydrophthalate and chlorinated paraffin (DOP-O-CP52) had a yield of 20.1%.
- Does cp52 interact with PVC?
- Combining CP52 and DOP into one molecule undoubtedly increases DOP’s interaction with PVC, resulting in DOP’s high permanence in PVC. However, stronger interactions between plasticizer and PVC will reduce its rate of diffusion in PVC, leading to lower plasticizing efficiency.
