Plasticizer
A plasticizer ( UK: plasticiser) is a substance that is added to a material to make it softer and more flexible, to increase its plasticity, to decrease its viscosity, and/or to decrease friction during its handling in manufacture. Plasticizers are commonly added to polymers such as plastics and rubber, either to facilitate the handling of the
Plasticizers: Types, Uses, Classification, Selection & Regulation
Due to its low cost and generally good performance, DEHP is widely employed as a plasticizer in manufacturing articles made of PVC. Melting point: 50°C Boiling point: 250 - 257°C at 0.5 kPa Structure of DEHP DEHP offers good gelling, satisfactory electrical properties and helps to produce highly elastic compounds with reasonable cold strength.
What Plasticizers Do & How They Affect Properties | Osborne
Plasticizers act like a lubricant among polymer chains to reduce rigidity. Without them, synthetic polymer materials would be too brittle and rigid for any practical purpose. For example, plasticizers give rubber its extensibility. Approximately 90% of all plasticizers are used in polyvinyl chloride, or PVC.
Plasticizers: Materials, Action and Uses | Admixtures
A good plasticizer produces fluidity in concrete or mortar in a different way than that of an air entraining agent. However some plasticizers also entrain some air along with improving the workability. A good plasticizer should not entrain air in concrete more than 1 to 2% as air entrainment reduces the strength of concrete.
Plasticizers in Polymers - Polymer Solutions
Plasticizers do their job by acting as a kind of “lubricant” between segments of polymer chains. Without the plasticizer, those chains of molecules would sit on top of each other as rigidly as uncooked spaghetti in a box. Mix in just the right plasticizer and the chains can move freely, like cooked pasta that you’ve topped with a nice olive oil.
- What are plasticizers & how do they work?
- Plasticizers are non-volatile organic substances (mainly liquids) added into a plastic or elastomer. They are also usually cheaper than other additives. They improve the following properties of the polymers: Plasticizers increase the flow and thermoplasticity of a polymer.
- What are plasticizers used in PVC & other plastics?
- Plasticizers used in PVC and other plastics are often based on esters of polycarboxylic acids with linear or branched aliphatic alcohols of moderate chain length. These compounds are selected on the basis of many critieria including low toxicity, compatibility with the host material, nonvolatility, and expense.
- Does a PVC plasticizer need to be labeled in California?
- If it can be demonstrated that a flexible PVC product containing (Proposition 65 listed) DEHP plasticizer, for example, cannot expose a consumer to more than the maximum acceptable daily limit of DEHP (established by the state of California), no labeling is required in California.
- Why are plasticizer prices rising in Asia-Pacific?
- Asia The price trend for plasticizers showed an upwards trend in the the Asia-Pacific region during the first quarter owing to the domestic polymer segment's increased demand for the product as a result of better offtakes from China’s construction sector.
- How do plasticizers affect a polymer?
- Well-chosen plasticizers can also improve resistance to UV exposure and chemical attack. This contributes to the long-term stability of the polymer. In specific applications, plasticizers can influence the dielectric properties of polymers.
- Do plasticizers burn PVC?
- Certain plasticizer families serve to inhibit the burning of plasticized PVC. These include brominated phthalate plasticizers, triaryl, and alkyl aryl phosphates. These products are blended with other plasticizers to strike a balance between flame resistance, physical properties, and cost.
