Cellulose Acetate Thermoplastics with High Modulus, Dimensional
Cellulose diacetate (CDA) can be melt-processed to produce numerous and widely-used plastic products. However, due to the high glass transition temperature (Tg) of CDA, the addition of up to 30 wt% of micromolecular plasticizers is indispensable, which significantly reduces the dimensional stability and raises safety concerns from the migration of plasticizers. In this work, a series of CDA
Plasticizers: Types, Uses, Classification, Selection & Regulation
Most common plasticiser chemistries include citrates, benzoates, ortho-phthalates, terephthalates, adipates, azelates, sebacates, and trimellitates. Plasticizers are the most common additives used in the plastics industry. But, selecting the right plasticizer for an application has always been a daunting task.
PLASTICIZER COMPOSITION, RESIN COMPOSITION, AND METHODS FOR PREPARING
[0001] The present invention relates to a plasticizer composition, a resin composition and a method for preparing thereof. [Background Art] [0002] In general, a plasticizer is composed of ester formed by reaction of alcohol with polycarboxylic acid such as phthalic acid and adipic acid.
Chemical compositions of fatty acids used as plasticizers raw materials
Chitosan-based films modified with synthesized (propylene glycol monoacetate, propylene glycol esters of fatty acids, and epoxidized propylene glycol esters) and commercial eco-friendly...
WO2016163743A1 - Plasticizer composition, resin composition, and
The present invention relates to a plasticizer composition, a resin composition, and preparation methods therefor. The present invention can provide: a plasticizer composition capable of improving physical properties required for a plasticizer composition contained in a vinyl chloride-based resin composition, such as plasticization efficiency, tension and elongation retention, heating loss and
- What are plasticizers based on?
- Plasticizers based on other acids are known and used [ 41 ], for example, citrates [ 42 ], but the cost of their production is much higher [ 43 ]. Esters of succinic acid are a renewable resource, which makes them an attractive promising starting material for industrial production [ 44 ].
- Why is the introduction of a plasticizer important?
- The introduction of a plasticizer into a polymer composition is important from a practical and theoretical point of view. Lowering the glass-transition temperature of the polymer with the introduction of a plasticizer makes it possible to expand the temperature range of its highly elastic state, that is, to increase its frost resistance.
- Which plasticizer is used in conjunction with low-molecular-weight plasticizer?
- As a rule, they are used in conjunction with small amounts of low-molecular-weight plasticizer. Known plasticizer based on castor oil, which is gradually hydrogenated, esterified and acetylated to obtain triacetylated monoglyceride ester.
- How does a new plasticizer work?
- Thus, studies have shown that the new plasticizer is characterized by high technological indicators—the thermal stability and efficiency of the plasticizing action—and also contributes to an increase in the fluidity of the melt of polymer compositions and the expansion of the temperature range for processing compounds based on it.
- What are the different types of natural-product-based plasticizers?
- Another type of natural-product-based plasticizer is acetylated soybean oil [ 43 ]. Technology converts epoxy groups in epoxidized oil into esters of vicinally diacetylated fatty acids. The technology can potentially be expanded to produce a variety of similar epoxy plasticizers [ 52 ].
- Why is plasticization important?
- The shift of the glass-transition temperature to the region of lower temperatures is commonly called plasticization. The introduction of a plasticizer into a polymer composition is important from a practical and theoretical point of view.
