Plasticizer
Plasticizers are commonly manufactured from lignosulfonates, a by-product from the paper industry. Superplasticizers have generally been manufactured from sulfonated naphthalene condensate or sulfonated melamine formaldehyde, although newer products based on polycarboxylic ethers are now available.
Plasticizer Definition & Meaning - Merriam-Webster
plasticizer noun plas· ti· ciz· er pla-st-sī-zr : one that plasticizes specifically : a chemical added especially to rubbers and resins to impart flexibility, workability, or stretchability Example Sentences Recent Examples on the Web Celluloid depended on Taiwanese camphor as a solvent and plasticizer.
India Definition & Meaning - Merriam-Webster
In· dia in-dē- 1 large peninsular region that is usually referred to as a subcontinent and is located in southern Asia south of the Himalayas between the Bay of Bengal and the Arabian Sea; occupied by the countries India, Pakistan, and Bangladesh and formerly often considered to include Burma (but not Ceylon) 2
Webster's Dictionary
Webster's dictionaries were a redefinition of Americanism within the context of an emergent and unstable American socio-political and cultural identity. Webster's identification of his project as a "federal language" shows his competing impulses towards regularity and innovation in historical terms.
Merriam-Webster's Collegiate Dictionary : Eleventh Edition
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- What is a plasticizer in chemistry?
- The Council of the International Union of Pure and Applied Chemistry (IUPAC) adopted the following definition of a plasticizer: A plasticizer is a substance or material incorporated in a material (usually a plastic or elastomer) to increase its flexibility, workability, or distensibility.
- What is a plasticizer used for?
- A plasticizer is a material that enhances the processability or flexibility of the polymer with which it is mixed. The plasticizer may be a liquid or solid or another low-molecular-weight polymer. For example, rigid poly (vinyl chloride) is a hard solid material used to make credit cards, pipe, house siding, and other articles.
- 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.
- What are plasticizers & superplasticizers?
- In the concrete technology, plasticizers and superplasticizers are also called high range water reducers. When added to concrete mixtures, they confer a number of properties including improved workability and strength. The strength of concrete is inversely proportional to the amount of water added, i.e., the water-cement (w/c) ratio.
- What polymers use plasticizers?
- Other polymer systems that use small amounts of plasticizers include polyvinyl butyral, acrylic polymers, poly (vinyldiene chloride), nylon, polyolefins, and certain fluoroplastics. Plasticizers can be used with rubber, although more often these materials fall under the definition of extenders, rather than plasticizers.
- What is a bio-based plasticizer?
- Bio-based plasticizers have been investigated, such as glycerol triacetate (Triacetin) and acetyltributylcitrate. They are used in niche applications. Epoxidized soybean oil is used broadly as a secondary plasticizer in many vinyl applications. Note: Bisphenol A, or BPA, is not a plasticizer, although it is often wrongly described as one.
