@misc{tucker_1999, title={Reply to 'Cuticle scale heights of wool and specialty fibers and their changes due to textile processing'}, volume={69}, number={9}, journal={Textile Research Journal}, author={Tucker, P. A.}, year={1999}, pages={698} } @article{hotter_cuculo_tucker_annis_1998, title={Effect of initial take-up speed on properties and structure of as-spun and drawn/heat-set poly(ethylene terephthalate) filaments}, volume={69}, DOI={10.1002/(SICI)1097-4628(19980912)69:11<2115::AID-APP3>3.0.CO;2-J}, abstractNote={The effect of initial take-up speed on the properties and structure of both as-spun and drawn/heat-set poly(ethylene terephthalate) filaments was characterized through measurements of birefringence, percent crystallinity, tensile properties, high temperature shrinkage, loss tangent temperature dependence, DSC melting behavior, and wide-angle (WAXS) and small-angle X-ray scattering (SAXS). While a steady trend toward improved as-spun filament orientation and tensile properties occurred with increasing initial take-up speed, the reduced drawability of these more structured precursor filaments resulted in corresponding drawn/heat-set filaments that were of relatively lower overall orientation and tensile strength. The observed trends in tenacity, initial modulus, and high temperature shrinkage of the drawn/heat-set filaments appeared to be well correlated with the extent and distribution of amorphous phase rigidity as perceived through inferences made from the loss tangent temperature dependence. The WAXS patterns of the drawn/heat-set samples indicated that these filaments all possess a well-developed and highly oriented crystalline structure. Application of a simple two phase model allowed the determination of an amorphous orientation factor, which for the drawn/heat-set filaments was generally found to decrease as the draw ratio imposed in order to achieve comparable levels of elongation to break decreased. The SAXS patterns of the drawn/heat-set filaments indicated that comparable long period spacings exist in all cases and that a transition from a four-point pattern to a two-point bar-shaped pattern occurred when the precursor filament possessed some significant amount of as-spun crystallinity. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 2115–2131, 1998}, number={11}, journal={Journal of Applied Polymer Science}, author={Hotter, J. F. and Cuculo, J. A. and Tucker, P. A. and Annis, B. K.}, year={1998}, pages={2115–2131} } @article{hotter_cuculo_tucker_annis_1998, title={Effect of liquid isothermal bath position in modified poly(ethylene terephthalate) PET melt spinning process on properties and structure of As-spun and annealed filaments}, volume={69}, ISSN={["0021-8995"]}, DOI={10.1002/(SICI)1097-4628(19980906)69:10<2051::AID-APP17>3.3.CO;2-3}, abstractNote={The ability to produce as-spun poly(ethylene terephthalate) (PET) filaments that possess previously unsurpassed levels of as-spun orientation and tensile properties was achieved through the implementation of a device described as a liquid isothermal bath (LIB). Although much has been published regarding the general effect of the LIB on various properties and structural features, the results of the present study further contribute to the continued development of this unique technology by investigating the positional dependence of the device, as well as the effect of a subsequent annealing process. Characterization methods employed in the present study included birefringence, percent crystallinity, tensile properties, loss tangent temperature dependence, DSC melting behavior, and wide-angle and small-angle X-ray scattering. Strong inferences drawn from the loss tangent temperature dependence indicate that all of the as-spun and annealed LIB filaments possess a more rigid amorphous phase than that present in either the as-spun or annealed no LIB filament and that the extent of rigidness appears to become more profound as the bath is operated at a position more distant from the spinneret. DSC melting endotherms of the as-spun LIB filaments consist of dual overlapping peaks, one component of which is believed to represent the presence of a novel extended chain type of crystalline structure. Application of a simple two phase model allowed for the quantitative evaluation of an amorphous orientation factor, which was found to range, depending on the bath position, from 1.7 to 3.9 times higher in the as-spun LIB filaments than that present in the as-spun no LIB filament. The annealing process was found to play an important role in facilitating the transformation from an as-spun highly oriented and predominantly amorphous structure to a well-defined semicrystalline fibrillar structure. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 2051–2068, 1998}, number={10}, journal={JOURNAL OF APPLIED POLYMER SCIENCE}, author={Hotter, JF and Cuculo, JA and Tucker, PA and Annis, BK}, year={1998}, month={Sep}, pages={2051–2068} } @misc{tucker_1998, title={Scale heights of chemically treated wool and hair fibers}, volume={68}, number={3}, journal={Textile Research Journal}, author={Tucker, P. A.}, year={1998}, pages={229–230} } @misc{cuculo_tucker_chen_lundberg_1998, title={Ultra-oriented crystalline filaments}, volume={RE35,972}, number={1998 Nov. 24}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Tucker, P. A. and Chen, G.-Y. and Lundberg, F.}, year={1998} } @misc{cuculo_tucker_lundberg_chen_wu_chen_1998, title={Ultra-oriented crystalline filaments and method of making same}, volume={5,733,653}, number={1998 Mar. 31}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Tucker, P. A. and Lundberg, F. and Chen, J.-Y. and Wu, G. and Chen, G.-Y.}, year={1998} } @article{chen_tucker_cuculo_1997, title={High performance PET fibers via liquid isothermal bath high speed spinning: fiber properties and structure resulting from threadline modification and posttreatment}, volume={66}, DOI={10.1002/(SICI)1097-4628(19971226)66:13<2441::AID-APP7>3.3.CO;2-L}, abstractNote={Poly(ethylene terephthalate) fibers with improved mechanical properties and dimensional stability were spun via controlled threadline dynamics by a liquid isothermal bath (LIB) spinning process, followed by postdrawing and annealing. Control fibers were made by unperturbed spinning and posttreatment similar to a traditional spin—draw process. The two sets of as-spun fibers were spun at take-up speed in the range of 2000–5000 m/min. Fiber properties of the as-spun fibers and posttreated fibers of each process were compared. Two commercial tire cords, i.e., conventional tire cord and low shrinkage tire cord, were also included. Unlike unperturbed spinning, the LIB as-spun fibers show unique structural properties of high amorphous orientation, low crystallinity, high strength, and high initial modulus. Moreover, noncrystalline chains are further extended during posttreatment. The posttreated LIB fibers exhibit mechanical properties with tenacity higher than approximately 9 g/d, initial modulus higher than 120 g/d, and ultimate elongation less than approximately 10%. They also demonstrate superior dimensional stability with thermal shrinkage less than 6% and LASE-5 higher than 5 g/d. The overall properties are not obtainable by either the traditional spin—draw process or any modified process that produces low shrinkage tire cord. Unlike the case for unperturbed fibers, the mechanical properties of the posttreated LIB fibers demonstrate a strong/dependency on the birefringence of their respective as-spun fibers. There are at least three significant pieces of evidence that strongly indicate the existence of a third phase, referred to as the taut—tie noncrystalline phase (TTNC), in addition to the traditional two-phase model, i.e., crystalline and random amorphous phases. A unique feature involving a high fraction of taut—tie noncrystalline phase (TTNC %) in the LIB as-spun and the posttreated fibers is also found and which is, in fact, achieved neither by the traditional spin—draw nor the commercial tire cord processes. Further, different from the posttreated unperturbed fibers, the posttreated LIB fibers have an enhanced fraction of taut—tie noncrystalline chains with shorter length, which is believed to be one of the important factors leading to the superior mechanical properties and excellent dimensional stability achieved. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 66: 2441–2455, 1997}, number={13}, journal={Journal of Applied Polymer Science}, author={Chen, J. Y. and Tucker, P. A. and Cuculo, J. A.}, year={1997}, pages={2441–2455} } @misc{cuculo_tucker_chen_lundberg_1995, title={Ultra-oriented crystalline filaments}, volume={5,405,696}, number={1995 Apr. 11}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Tucker, P. A. and Chen, G. Y. and Lundberg, F.}, year={1995} } @misc{cuculo_tucker_chen_lundberg_1993, title={Melt spinning of ultra-oriented crystalline filaments}, volume={5,268,133}, number={1993 Dec. 7}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Tucker, P. A. and Chen, G. Y. and Lundberg, F.}, year={1993} } @misc{cuculo_tucker_chen_lundberg_1992, title={Melt spinning of ultra-oriented crystalline polyester filaments}, volume={5,149,480}, number={1992 Sep. 22}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Tucker, P. A. and Chen, G. Y. and Lundberg, F.}, year={1992} } @misc{cuculo_tucker_lin_lundberg_1992, title={Process for producing high strength, high modulus thermoplastic fibers}, volume={5,171,504}, number={1992 Dec. 15}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Tucker, P. A. and Lin, C. Y. and Lundberg, F.}, year={1992} } @misc{cuculo_tucker_chen_lin_denton_lundberg_1990, title={Process for high speed melt spinning}, volume={4,909,976}, number={1990 Mar. 20}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Cuculo, J. A. and Tucker, P. A. and Chen, G. Y. and Lin, C. Y. and Denton, J. and Lundberg, F.}, year={1990} }