Diverging trends of plasticizers (phthalates and non
Background European chemicals management aims to protect human health and the environment from legacy and emerging contaminants. The plasticizer market changed in response to the restriction of low molecular weight (LMW) phthalate plasticizers such as Di (2-ethylhexyl) phthalate (DEHP) due to their hazardous properties. We investigated patterns and trends of 19 regulated and emerging
DEHT is a suitable plasticizer option for phthalate-free
Di (2-ethylhexyl) terephthalate (DEHT) provides sufficient red blood cell (RBC) quality during conventional blood bank storage. It is important that a new plasticizer also maintains acceptable quality during exposure to high cell stress, such as irradiation, which is commonly used to prevent graft-versus-host disease.
Non-phthalate plasticizer DEHT preserves adequate blood
DEHP is favourable for storage of red blood cells (RBC). Historically, removal of DEHP from blood bags has been linked to unacceptable haemolysis levels. Oncoming regulatory restrictions for DEHP due to toxicity concerns increase the urgency to replace DEHP without compromising RBC quality.
Analytical methods for the determination of DEHP plasticizer
Until 2010, diethylhexylphthalate (DEHP) was the plasticizer most commonly used to soften PVC medical devices (MDs), because of a good efficiency/cost ratio. In flexible plasticized PVC, phthalates are not chemically bound to PVC and they are released into the environment and thus may come into contact with patients.
Physical and chemical modifications of poly(vinyl chloride
PMMA plasticized with 20 vol.% DEHP only lost 7 wt.% of its initial weight in 25 min at 250 o C. Table 3 shows thermal stability of plasticized PMMA after 21 days at 170 o C , using DEHP and [bmin +][PF 6-] as plasticizer. ILs show more excellent long-term thermal stability than DEHP.
- Can bio-based plasticizers compete with DEHP in PVC?
- Potential alternatives to DEHP in PVC include diheptyl succinate (DHS), diethyl adipate (DEA), 1,4-butanediol dibenzoate (1,4-BDB), and dibutyl sebacate (DBS). To examine whether that these bio-based plasticizers can compete with DEHP, we need to compare their tensile, mechanical, and diffusional properties.
- How many DEHP molecules are there in a polyvinyl chloride (PVC) plasticizer?
- This system has 8 DEHP molecules, the diffusion of which are all tracked individually and then averaged to get the diffusion coefficients (red DEHP MSD line). Environmental and toxicity concerns dictate replacement of di (2-ethylhexyl) phthalate (DEHP) plasticizer used to impart flexibility and thermal stability to polyvinyl chloride (PVC).
- Why is DEHP used in plasticization and processing of PVC?
- The excellent performance of DEHP in the plasticization and processing of PVC explains its wide use in medical devices over the past few years. The strategy was to adjust the chemical nature of the lateral alkyl chains in order to reduce the leaching of the plasticizers into the surrounding medium.
- What are alternative plasticizers for polyvinyl chloride (PVC)?
- Environmental and toxicity concerns dictate replacement of di (2-ethylhexyl) phthalate (DEHP) plasticizer used to impart flexibility and thermal stability to polyvinyl chloride (PVC). Potential alternatives to DEHP in PVC include diheptyl succinate (DHS), diethyl adipate (DEA), 1,4-butanediol dibenzoate (1,4-BDB), and dibutyl sebacate (DBS).
- Are DBS and DHS a good plasticizer for PVC?
- Where data was available, the results from this study are in good agreement with the experiment; we conclude that DBS and DHS are most promising green plasticizers for PVC, since they have properties comparable to DEHP but not the environmental and toxicity concerns. CC-BY 4.0. 1. Introduction
- What is diethylhexylphthalate (DEHP)?
- Until 2010, diethylhexylphthalate (DEHP) was the plasticizer most commonly used to soften PVC medical devices (MDs), because of a good efficiency/cost ratio. In flexible plasticized PVC, phthalates are not chemically bound to PVC and they are released into the environment and thus may come into contact with patients.
