Plasticizers for PVC | POLYNT
The plasticizers are organic substances with various characteristics, whose main function is to intercalate the rigid polymer structures of material such as PVC for an easy movement and flexibility, making them more precisely "plastics." The presence of plasticizers in the PVC structure will influence different specific physical-mechanical
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New Plasticizer Combines Low-Temperature Flexibility
Evonik has offered ELATUR CH, another new-generation plasticizer, in addition to VESTINOL 9 since 2013. As a fast fuser for special PVC applications, ELATUR DPT completes the portfolio and is particularly effective in combination with ELATUR CH, said Evonik. The new product will be manufactured at the group's largest site in Marl, Germany.
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Mechanical and rheological properties of unfilled PVC compounds and PVC/newsprint-fiber composites at 45 phr were compared over the range of 0 to 15 phr of DOP plasticizer.
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Flexible packaging is often preferred over rigid packaging because of the low weight and low cost. 1 Lightweight materials such as paper, plastic and composites are most relevant for flexible food packaging. 2 Because of the light weight, less energy is consumed during transportation.
- What is a plasticizer?
- In general, plasticizers can be defined as low molecular weight (between 300 and 600) , high boiling point materials which are added to a film-forming polymer to enhance its flexibility, durability, processability, and workability . Their addition can avoid shrinking during storage , and in some cases reduce costs .
- What are natural based plasticizers?
- Nowadays, there is increasing interest in the use of natural-based plasticizers that are characterized by low toxicity and low migration. This group includes epoxidized triglyceride vegetable oils from soybean oil, linseed oil, castor-oil, sunflower oil, and fatty acid esters (FAEs) .
- Are biopolymers a good substitute for conventional plasticizers?
- The use of natural and/or biodegradable plasticizers, with low toxicity and good compatibility with several plastics, resins, rubber and elastomers in substitution of conventional plasticizers, such as phthalates and other synthetic conventional plasticizers attracted the market along with the increasing worldwide trend towards use of biopolymers.
- Can bio-based plasticizers replace conventional plastic goods?
- The challenge to implement this new class of natural-based plasticizers matches the increasing interest of material researchers and industries in new bio-based materials, made from renewable resources with the potential, not to totally replace but to reduce the use of conventional plastic goods.
- How are plasticizers classified?
- Plasticizers are classified based on their chemical composition. It is important to understand the influence of structural elements on the properties of plasticizers and their effect on base polymers. For example, the presence of elements like alcohols in a homologous series of phthalates, and adipates.
- What are bio-based plasticizers?
- As the name says, biobased plasticizers are majorly based on: Few more plasticizers are based on renewably sourced isosorbides and alkanoic acids. Isosorbide diesters are a non-toxic alternative to phthalates. They offer promising properties to PVC. Being naturally/renewable sourced, bio-based plasticizers are sometimes easily approved for:
