Modified polyester with cotton-like properties
Wellman Company of the United States uses polyethylene glycol and a branching agent to modify the polymer. And has applied for a patent (WO/O012793). The modified component is polyethylene glycol. Can improve the wetting and wicking properties of polyester. The performance is the same as cotton shed, but the elastic memory performance is much lower, and the V-value is 6 ~ l0 (wt). Greater than 2O． It has an impact on adding T temperature. The branching agent can be pentaerythritol, benzene trimesic acid, benzene trimesic acid, benzene dianhydride, benzene trimesic acid, etc. The best choice is pentaerythritol. The dosage is l300～l800 ppm. Polyester with intrinsic viscosity of 0.8O~0.50 dl/g can be obtained. This modified polyester uses general spinning technology to produce short fiber and clothing fabrics. The important thing is that its performance is similar to cotton.
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