| 释义 |
plasticate, v.|ˈplæstɪkeɪt|
[f. plastic a. + -ate3, prob. after masticate.]
1. trans. To change (particles of rubber or thermoplastic) into a homogeneous plastic (mouldable) mass by passing it through a suitable extruder and usu. simultaneously heating it.
1929W. A. Gordon Brit. Pat. 334,509 (title) Machines for plasticating materials. 1934Industr. & Engin. Chem. Mar. 349/1 Rubber, plasticated in the Gordon machine, which gives the same y5 value..as a sample of mill-massed rubber, appears much stiffer in factory processing operations. 1968Encycl. Polymer Sci. & Technol. IX. 8 Machines are either single-stage, in which plastication and injection are done by the same cylinder, or double-stage, in which the material is plasticated in one cylinder and fed to a second for injection into a mold. 1975Mod. Plastics Internat. Nov. 25/2 In the twin-screw section, powder PVC or other material is plasticated at low shear with close control over temperature.
2. [ad. F. plastiquer.] trans. To blow up or destroy with a plastic bomb.
1962Guardian 3 Jan. 7/4 Paris butchers are now using plastic bombs against colleagues... One butcher's shop..was ‘plasticated’ early this morning. 1965D. Francis Odds Against (1967) xix. 222, I couldn't get hold of Radnor on account of the office phones being plasticated.
Hence ˈplasticated ppl. a., ˈplasticating vbl. n. and ppl. a.
1934Industr. & Engin. Chem. Mar. 349/1 There is need of a method for detecting the difference..between the plastic properties of plasticated and mill-massed rubber. 1953Ibid. May 970/2 The combined operation of melting and extruding is called ‘plasticating extrusion’. 1959J. B. Paton in E. C. Bernhardt Processing of Thermoplastic Materials iv. 228 In the design of an extruder used for processing thermoplastic materials, the complex operations of plasticating, compacting, and conveying..must also be considered. 1970Tadmor & Klein Engin. Princ. Plasticating Extrusion i. 8 Today's plasticating extruders operate mostly in the speed range of 20–200 rpm.., extruding up to 3500 lb/hr of polymer. |