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.
Fundamentals of plasticizers | ExxonMobil Product Solutions
Plasticizers transform the properties of PVC to create the attributes we need in each application. Most PVC applications have a life-span of 10 to 20 years and beyond. Its long life-span makes PVC the perfect material for applications like building and construction. What is PVC? PVC has all the attributes needed to make it a widely used polymer.
What Plasticizers Do & How They Affect Properties - Osborne Industries
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.
Plasticizer
Plasticizers can be added to wallboard stucco mixtures to improve workability. In order to reduce the energy consumed drying wallboard, less water is added, which makes the gypsum mixture very unworkable and difficult to mix, necessitating the use of plasticizers, water reducers, or dispersants.
Selecting Heat Stabilizers for PVC
Organotin mercaptides also offer outstanding color retention in plasticized and rigid PVC processing. Lead Salts and Soaps (Liquid and Solid) Heat Stabilizers based on lead salts and soaps offer exceptional long-term heat stability. These heat stabilizers are considered as one of the most cost-effective forms of stabilizers for PVC.
- 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.
- Why are plasticizers used in PVC?
- This increases the flexibility of the material, reduces brittleness, and improves its resistance to impact. Several types of plasticizers are used in PVC to improve its flexibility and durability.
- Why do polymers need plasticizers?
- Plasticizers play a pivotal role in modifying the physical properties of polymers. They enhance flexibility, reduce brittleness, and improve durability by integrating themselves between the polymer chains and creating spaces, which facilitates easier movement of these chains when subjected to force.
- How do plasticizers affect a polymer?
- For example, commonly they are integrated polymer chains, plasticizers reduce intermolecular forces, thereby increasing the material’s plasticity and decreasing its viscosity. This modification transforms rigid and brittle polymers into more pliable forms, broadening their application spectrum.
- Why do plasticizers change properties?
- This change is due to the addition of specific additives, especially plasticizers. A plasticizer is a non-volatile substance incorporated in a plastic or elastomer. It changes the thermal and mechanical properties of the material. The expected property changes in a plasticized plastic or elastomer are as follows:
- How to make a plastic product more flexible by adding plasticizers?
- The process of making the final plastic product more flexible by adding plasticizers is called plasticization. By adding the right type and amount of plasticizer, you can tweak the polymer properties to get exactly what you need.
