| 单词 |
plasticizer |
| 释义 |
plasticizer|ˈplæstɪsaɪzə(r)|
[f. plasticize v. + -er1.]
Any substance which when added to another makes it (more) plastic or mouldable; spec. one (usu. a solvent) added to a synthetic resin to produce or promote plasticity and flexibility and to reduce brittleness.
1925Paint, Oil & Chem. Rev. 29 Jan. 10/3 In order that the film may remain flexible..plasticizers—inert liquids of low vapor tension—are incorporated in the lacquer. 1943H. R. Fleck Plastics vii. 160 Poly-vinyl chloride as formed is a hard brittle amorphous white powder which is useless for moulding purpose until plasticizer is added. 1947J. C. Rich Materials & Methods of Sculpture xi. 342 Films of lacquer tend to harden and to become brittle as they age. For this reason plasticizers must be added to a lacquer formula. 1948Dalzell & Townsend Masonry Simplified I. i. 16 In cement concrete, lime functions as a plasticizer. 1962A. Nisbett Technique Sound Studio 248 Direct-cut disc... These are made of cellulose nitrate (which contains a castor oil plasticizer to soften it for easy cutting) but are often referred to as ‘acetates’. 1967M. Chandler Ceramics in Mod. World iv. 132 Most steatite electrical products..are most commonly shaped by dust-pressing, but because the body contains little clay the ceramist adds artificial plasticizers such as waxes or polyvinyl alcohol. 1971Materials & Technol. II. v. 253 The so-called plasticisers which are added to mortars improve their working properties by causing air to be entrained into them at the time of gauging the mortar. 1972Ibid. V. xxii. 844 Hairsprays nearly always include an important minor ingredient called a ‘plasticizer’ which softens the resin film and prevents it flaking on the hair. |
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