Manufacture of Single Cotton Fabric with New Composition, Specified Bend from Yarn Gathered from Local Raw Material Cotton Fiber

The article created 21 types of fabrics for the new composition of dublerin. Tests of various types of weave, fiber composition and yarn count are shown in various ways. The physical and mechanical parameters of the test samples were determined and analyzed at the “Accredited Testing Laboratory for Light Industry Products” at the State Unitary Enterprise “Namangan Center for Testing and Certification”. The reason for such a low performance of the motos of number 15 produced in the scientific research work is that the linear densities of the body and the yarn are four times different, despite the weaving of the fabric. Elongation at break is also dependent on penetration.

黏性颗粒在聚偏氟乙烯纤维膜内部沉积特性数值模拟

为了探究黏性颗粒在纤维过滤介质上的沉积特性,通过随机算法建立聚偏氟乙烯纤维膜的三维模型,并采用离散单元法进行了纤维膜内部的气固流动模拟,引入JKR颗粒接触模型,研究了颗粒表面能与碰撞恢复系数对黏性颗粒的运动与沉积特性影响,获得了黏性颗粒在纤维表面沉积的最佳表面能和碰撞恢复系数,并在此基础上研究了粒径2~7μm黏性颗粒的沉积与受力情况。结果表明:颗粒表面能、恢复系数与粒径均为影响黏性颗粒沉积特性的重要因素,表面能的减小,恢复系数或粒径的增大,能够使捕集效率增大,颗粒在纤维表面更易形成稳定的沉积与团聚形态。