Changes in the Structure of Wet-Spun Acrylic Fibers During Processing

Textile Reseach Journal - Tập 41 Số 3 - Trang 196-203 - 1971
James P. Bell1, J. H. Dumbleton1
1Chemstrand Research Center, Inc., Box 731, Durham, North Carolina 27702, U. S. A.

Tóm tắt

The structural changes that occur during processing of a wet-spun 93% polyacrylonitrile -7% polyvinyl acetate co polymer are discussed. Stress-strain, x-ray diffraction, shrinkage, and electron microscopy data are explained in terms of a model in which the molecules are in an irregular helical conformation in the relaxed state and can extend during de formation. The molecules are arranged in fibrils which, in turn, form a three-dimensional network. The fibrillar ele ments remain intact through the coagulation, hot-stretching, and drying, although network junctures break and reform. The model proposed is an extension of that used by Rosenbaum to describe the behavior of acrylic fibers after processing and is in agreement with previous work on the structural characterization of polyacrylonitrile.

Từ khóa


Tài liệu tham khảo

10.1063/1.1713199

Andrews, R.D., 1968, J. A ppl. Phys., 39, 4909

10.1002/pol.1961.1205516212

10.1177/004051756203200601

10.1177/004051756003000506

10.1002/app.1970.070140919

Grobe, V., 1959, Textiltech, 10, 214

10.1002/pol.1960.1204314229

10.1002/pol.1962.1206217310

10.1063/1.1702928

10.1177/004051756303300103

Knudsen, J.P., Presented at Gordon Research Conference on Textiles

10.1002/app.1967.070111212

Kotina, W.E., 1957, Tekstil'naya Prom., 4, 17

10.1002/pol.1958.1202811620

10.1002/pol.1960.1204314217

10.1063/1.1729086

10.1002/pol.1968.150060714

10.1002/app.1968.070120301

10.1002/app.1969.070130501

10.1002/app.1965.070090606

Takahashii, M., 1959, J. Soc. Textile Cellulose Ind. Japan, 15, 951

10.1002/pol.1968.110060611

Thông tin
Thông tin xuất bản

Textile Reseach Journal

Tập 41 Số 3

196-203

Thông tin tác giả