A process for making microcellular thermoplastic parts

Polymer Engineering and Science - Tập 30 Số 20 - Trang 1323-1329 - 1990
Vipin Kumar1, Nam P. Suh2
1Department of Mechanical Engineering, FU‐10 University of Washington Seattle, Washington 98195
2Department of Mechanical Engineering and, Laboratory for Manufacturing and Productivity, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Tóm tắt

AbstractA novel process to produce microcellular thermoplastic parts is described. This is achieved by integrating the deformation process in the foaming cycle in such a way that the cell nucleation and growth processes are effectively uncoupled from deformation. The nitrogen‐polystyrene system is studied and the relationships between the essential process parameters are established. It is experimentally shown that the pressures associated with deformation do not reduce the number of bubbles nucleated. The process synthesized is demonstrated by making a microcellular polystyrene container.

Từ khóa


Tài liệu tham khảo

Martini J. E., 1982, SPE ANTEC Tech. Papers, 28, 674

J. E.Martini‐Vvedensky N. P.Suh andF. A.Walman U.S. Patent No. 4 473 665 (1984).

F. A.Waldman SM thesis Mechanical Engineering Massachusetts Institute of Technology Cambridge Mass. (1982).

Kumar V., 1988, SPE ANTEC Tech. Papers, 34, 715

N. P.Suh “Development of the Science Base for the Manufacturing Field Through the Axiomatic Approach ”Robotics and Computer integrated Manufacturing.Vol.1 No. 3/4 pp.397–415(1984).

Suh N. P., 1990, The Principles of Design

V.Kumar PhD thesis Mechanical Engineering Massachusetts institute of Technology Cambridge Mass. (1988).

Crank J., 1956, Mathematics of Diffusion

10.1002/pen.760270704

10.1002/aic.690150124

Thông tin
Thông tin xuất bản

Polymer Engineering and Science

Tập 30 Số 20

1323-1329

Thông tin tác giả