Hydrolysis-resistant dacron for dustproof clothes
A polyester fiber, anti-hydrolysis technology, applied in the field of polyester fiber, can solve dyeing and other problems
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[0031] Mix polyester PET and polycarbodiimide according to different proportions, measure after melting, under the condition of total discharge speed 37g / min, spinning temperature 295 degrees, 72-hole φ0.28mmde mouth gold discharge spinning speed 3000m / min Down spinning obtains 140D-72 semi-drawn yarn with residual elongation of 150%. The semi-stretched yarn is stretched at an extension temperature of 85 degrees, a heat setting temperature of 140 degrees, and an elongation ratio of 1.7 to obtain a stretched yarn of 84D-72 single filament fineness of 1.2dtex. The obtained stretched filaments were twisted at 1500T / M and used as warp and weft yarns of the fabric respectively to obtain a plain weave fabric with a processing density of 153 x 80 / 160 x 86, which was heat treated at 135 degrees for 100 times for 20 minutes. The polycarbodiimide contains N=C=N groups, and its structural formula is:
[0032]
[0033] R 1 , R 2 It is one or more of C1-C10 saturated or unsaturated a...
Embodiment 3
[0040] Levels 11-14 are based on the spinning conditions of level 1, using polycarbodiimides with different molecular weights, and the results are as follows.
[0041] 11 12 13 14
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