| Автор | Segal, Leon |
| Автор | Timpa, Judy, D. |
| Дата выпуска | 1973 |
| dc.description | Losses in tensile and tearing strengths and other physical properties of cotton fabric given durable-press finishes have been attributed to factors arising mainly from the crosslinking of the cellulose molecule. This conclusion was deduced from the results of textile testing of the treated fabrics. In order to define the sources of these strength losses, a study was made of cotton fabric treated with dimethylolethylene urea and a zinc nitrate catalyst in a commercial manner, but with varying times of cure. Heretofore unobtainable molecular parameters of durahle-press cotton fabric were estab lished from solubilized samples. Correlations made between physical properties of the fabric and the fine-structural features of the fiber, both of which were measured, estahlished the fractions of losses arising from molecular degradation and from crosslink embrittlement as a function of the extent of cure. In the shorter cure times, the predominant strength loss came from crosslink embritttement, but this proportion dropped rapidty and molecular degradation became the major source. Changes in degree of polymerization suggest that the catalyzed crosslinking reaction produces a limited chain extension of the cellulose molecule which becomes evident after removal of the crosslinks. |
| Издатель | Sage Publications |
| Тема | Cotton fabric. Crosslinked cotton fabric |
| Тема | DMEU |
| Тема | DMDHFL |
| Тема | DMeDHEU |
| Тема | melamine |
| Тема | carbamate. Water |
| Тема | zinc nitrate |
| Тема | catalyst |
| Тема | time |
| Тема | temperature. Pad-dry-cure. Moisture regain |
| Тема | strength losses. Structural changes. Breaking strength |
| Тема | elongation |
| Тема | tear strength |
| Тема | abrasion resistance |
| Тема | wrinkle-recovery angles |
| Тема | durable-press. |
| Название | Strength Losses and Structural Changes in Cotton Fabric Crosslinked with Dimethylolethyleneurea 1 |
| Тип | Journal Article |
| DOI | 10.1177/004051757304300401 |
| Print ISSN | 0040-5175 |
| Журнал | Textile Research Journal |
| Том | 43 |
| Первая страница | 185 |
| Последняя страница | 194 |
| Аффилиация | Segal, Leon, Southern Regional Research Laboratory,2 New Orleans, Louisiana 70179, U. S.A. |
| Аффилиация | Timpa, Judy, D., Southern Regional Research Laboratory,2 New Orleans, Louisiana 70179, U. S.A. |
| Выпуск | 4 |
| Библиографическая ссылка | Berni, R.J., Bernerito, R.R., Ayres, W.M., and Jonassen, H.B., Metal Ion Complexes of 2-Imidazolidinone (Ethyleneurea), J. Inorg. Nucl. Chem.25, 807-818 (1963). |
| Библиографическая ссылка | Book of ASTM Standards, American Society for Testing and Materials, Philadelphia, Pa., Part 25, Method D 539-53 (1969), p. 102; Part 15, Method D 1716-62 (1969), pp. 579-580. |
| Библиографическая ссылка | Frick, J.G., Kottes, B.H., and Reid, J.D., Chemical and Physical Effects of Finishing Cotton with Methylol Derivatives of Ethyleneurea, Texlile Res. J.24, 314-322 (1959). |
| Библиографическая ссылка | Gilbert, S.M. and Smith, B.F., A Degradation Study of Some Formaldehyde-Modified Celluloses, Textile Res. J. 40, 720-727 (1970). |
| Библиографическая ссылка | Lewin, M. and Weinstein, S., Oxidation of Formaldehyde-Crosslinked Cotton, Textile Res. J. 37, 751-763 (1967). |
| Библиографическая ссылка | Marx-Figini, M. and Schulz, G.V., Die viskosimetrische Molekulare-gewichtsbestimmung von Cellulosen und Cellulosenitraten unter Standardbedingungen, Makromol. Chem. 54, 102-118 (1962). |
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| Библиографическая ссылка | Roff, W.J., TheDetermination of the Formaldehyde Yield of Cellulose Textiles Treated With Formaldehyde, UreaFormaldehyde, or Metamine-Formatdehyde, J. Textile Inst.47, T309-T318 (1956). |
| Библиографическая ссылка | Segal, L. and Timpa, J.D., The Effect of Formaldehyde Crosslinking of Cotton on the Chain Length of the Cellulose Molecule. I. The Form W' Process, Textile Chem. Color 4, 66-70 (1972). |
| Библиографическая ссылка | Segal, L. and Timpa, J.D., The Effect of Formaldehyde Crosslinking of Cotton on the Chain Length of the Cellulose Molecule. II. The Form C Process, Paper presented at the Southeast Regional Meeting, ACS, Nashville, Tenn., Nov. 4-6, 1971; manuscript in process. |
| Библиографическая ссылка | Segal, L. and Timpa, J.D., Gel Permeation Chromatography and Cellulose. II. Application of Universal Calibration, J. Polymer Sci. A-1, 8, 3577-3589 (1970); Wadsworth, J.I., Segal, L., and Timpa, J.D., Average Degree of Polymerization of Cellulose by GPC Without Viscosity Measurements, Paper presented at the 163th National Meeting, ACS, Washington, D. C., Sept. 12-17, 1971. |
| Библиографическая ссылка | Swenson, H.A., in "Methods of Carbohydrate Chemistry. Vol. III. Cellulose," R. L. Whistler, Ed., New York, Academic Press, pp. 84-88, 1963. |
| Библиографическая ссылка | Timell, T. and Purvis, C.B., A Study of the Initial Stages of the Methylation of Cellulose, Svensk Papperstidin, 54, 303-332 (1951). |
| Библиографическая ссылка | Ziifle, H.M. , Berni, R.J., and Bernerito , R.R., Investigation of the Catalyst in the Cellulose-DMEU Reaction. Part I: Properties of the Finished Cottons, Textile Res. J. 31, 349 365 (1961); Part II: Physicochemical Studies of the Reaction , J. Appl. Polymer Sci. 7, 1041-1062 (1963 ). |
