Science and Technology of Fibers and Related Materials: Proceedings of the Fiber Society 50th Anniversary Technical Conference Held in Princeton, New Jersey, August 19-23, 1990Ludwig Rebenfeld |
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Page 229
... PET is 0.275 and that for PET crystal is 0.22 . It is probably the first report of a birefringence as high as 0.22 achieved directly from the ... fibers . high IV PET appears to increase gradually with increasing temperature PET FIBERS 229.
... PET is 0.275 and that for PET crystal is 0.22 . It is probably the first report of a birefringence as high as 0.22 achieved directly from the ... fibers . high IV PET appears to increase gradually with increasing temperature PET FIBERS 229.
Page 233
... PET LIB : 136 ° C / 40cm 15 10 4000 4500 TAKE - UP VELOCITY , m / min FIG . 8. Effects of take - up velocity on birefringence and crystallinity of LIB spun PET fibers . Due to a relatively high frequency of filament breakage encountered ...
... PET LIB : 136 ° C / 40cm 15 10 4000 4500 TAKE - UP VELOCITY , m / min FIG . 8. Effects of take - up velocity on birefringence and crystallinity of LIB spun PET fibers . Due to a relatively high frequency of filament breakage encountered ...
Page 234
... fiber tenacity and elongation at break with take - up velocity for 0.95 IV PET fibers spun with LIB are shown in Figure 9. Similar to the change of birefringence , the tenacity of the LIB spun fibers increases almost linearly with ...
... fiber tenacity and elongation at break with take - up velocity for 0.95 IV PET fibers spun with LIB are shown in Figure 9. Similar to the change of birefringence , the tenacity of the LIB spun fibers increases almost linearly with ...
Contents
Technological Developments in ManMade Fibers and Related | 33 |
Morphology and Near Tm Behavior of High Performance Ultrahigh | 67 |
Properties Structures and Temperature Limitations | 87 |
Copyright | |
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Common terms and phrases
amorphous analysis angle appear Applied assumed behavior bending birefringence blend braided break calculated carpet compared composite compression constant cotton crystalline crystallization curve decrease deformation density dependence described determined developed diameter diffusion direction discussed distance distribution draw effect energy experimental extension fabric factor failure fiber filament finish force fraction function geometry given heat higher impact improved increase indicated initial length liquid load lower m/min material measured mechanical method modulus nylon observed obtained occur orientation parameters phase polyester polymer possible present pressure produced properties range ratio recovery relative sample Scanning shape shear shown in Figure shows solution specimen Spectra speed spinning spun strain strength stress structure surface Table temperature tenacity tensile Text treated treatment twist unit values variability yarn