Polymers | Free Full-Text | Effect of Urea and Borate Plasticizers on
The plasticizer was 98% de-ionized water whereas the other constituents were urea and borate (Na 2 B 4 O 7 ·10H 2 O) of Analytical Reagent (AR) grade (Faisalabad, Pakistan). The starch with degree of substitution of 0.81 was reacted with urea and borate in water medium.
Plasticizers: Types, Uses, Classification, Selection & Regulation
There are two main groups of external plasticizers: A primary plasticizer enhances elongation, softness and flexibility of polymer. They are highly compatible with polymers and can be added in large quantities. For example: up to 50% of vinyl gloves are made up of plasticizers, which make the PVC flexible and soft enough to wear.
Synergistic effect of plasticizer and nucleating agent on
Since the T b of 90 °C was well above the T g of PLA materials, it seems that the nucleating agent and the plasticizer separately or synergistically have prominent effects on enhancing the crystallization ability of PLA under specific processing conditions where the PLA chains have enough mobility for nucleation and/or crystal growth.
Poly(caprolactone triol) as plasticizer agent for cellulose acetate
In summary, PCL-T was a good plasticizer agent for CA films due to the presence of hydrogen bonds between the components (FT-IR spectra). The presence of water in the dry casting process has a significant effect mainly on film morphology and mechanical properties.
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