摘要:
The present disclosure relates to a hybrid fiber fabricated with a low production cost while having excellent mechanical properties, as well as a method for fabricating the same. The disclosed hybrid fiber includes; a first filament, and a second filament different from the first filament, wherein a strength-strain curve of the hybrid fiber measured according to ASTM D 885 has at least one peak, provided that, if the strength-strain curve has at least two or more peaks, a difference in strain between a first peak having the lowest strain and a second peak having the highest strain, among the above two or more peaks, is 3% or less.
摘要翻译:本公开内容涉及以低成本制造而具有优异的机械性能的混合纤维及其制造方法。 所公开的混合光纤包括: 第一丝和不同于第一丝的第二丝,其中根据ASTM D 885测量的复合纤维的强度 - 应变曲线具有至少一个峰,条件是如果强度 - 应变曲线具有至少两个或 在上述两个以上的峰中,具有最低应变的第一峰与具有最高应变的第二峰之间的应变差为3%以下。
摘要:
Disclosed is a method for manufacturing carbon fiber which comprises the use of un-reacted raw material monomers in solution to prepare the precursor fiber for making the carbon fiber, and a relatively short passage period through hydrogen, which reduce production costs and increase returns. The present invention further comprises the carbon fiber precursors made thereby.
摘要:
Disclosed is an aramid product in which the number of defects present in noncrystalline regions is considerably reduced and a composition for aramid for producing the same. The composition contains aromatic polyamide and a fused aromatic compound, wherein the content of the fused aromatic compound is 0.01 to 10 parts by weight, based on 100 parts by weight of the aromatic polyamide.
摘要:
Disclosed is aromatic diamine with high purity obtained by efficiently removing impurities and preventing oxidation, and a method for manufacturing the same; and aramid fiber with improved discoloration resistance realized by preventing deterioration in quality even for a long-period exposure to the external environments of sunlight, atmosphere, and moisture, and a method for manufacturing the same.
摘要:
Disclosed are an aramid composite which satisfies bulletproof performance required for the related art, is lightweight and exhibits superior adhesive strength, and a method for producing the same. The aramid composite includes an aramid fabric, an adhesive layer and a metal substrate, wherein at least one of the surface of the aramid fabric and the surface of the metal substrate is modified.
摘要:
A high voltage DC power supplier includes: a transformer driven by a switching device, transforming an input voltage to a certain level of high voltage, and outputting the transformed high voltage; a diode and a capacitor for rectifying and smoothing the high voltage outputted from the transformer, and supplying the smoothed voltage to an ER fluid application unit; a discharge circuit for forcibly discharging the output voltage when an output voltage of the capacitor descends; and a controller for controlling a turn-on operation of the switching device on the basis of a difference value between the output voltage and a reference voltage so that the output voltage can follow a target voltage, and outputting a control signal for driving the discharge circuit to the discharge circuit when it reaches a discharge period.
摘要:
Disclosed is a method for manufacturing carbon fiber which comprises the use of un-reacted raw material monomers in solution to prepare the precursor fiber for making the carbon fiber, and a relatively short passage period through hydrogen, which reduce production costs and increase returns. The present invention further comprises the carbon fiber precursors made thereby.
摘要:
Disclosed are to a superabsorbent yarn capable of minimizing the degradation of strength and elongation thereof after coated with a superabsorbent material and minimizing white powders which might be caused and impose processing difficulties during an optical cable manufacturing process and a method for manufacturing the same. The superabsorbent yarn of the invention comprises a yarn and a superabsorbent material coated on the yarn, wherein the superabsorbent material comprises crosslinked polyurethane.
摘要:
The present invention relates to a para-fully aromatic polyamide pulp, its preparing process and its preparing equipment, more particularly, it is assemble of micro fibrils having less than 1 .mu.m in its average diameter and crushed oval shaped cross-section wherein the longest distance is at least 1.2 times than the shortest distance.Also, the present invention relates to a continuous process and equipment preparing for the above aromatic polyamide pulp by orienting and maturing or orienting, maturing and cutting the pre-polymer (non-oreinted) that aromatic diamine has been reacted with equivalent mole of aromatic diacid chloride in polymerization solvent.
摘要:
Disclosed are a bulletproof fabric and a method for producing the same that exhibit improved anti-traumaproperty and minimize deterioration in bulletproofness even after use under harsh conditions for a long period of time. The bulletproof fabric includes a fabric comprising at least one high-strength fiber selected from the group consisting of a high molecular weight polyethylene fiber, an aramid fiber, and a polybenzoxazole fiber, and a water repellent layer disposed on the high-strength fiber, wherein the water repellent layer is formed by treating the fabric with a water-repellent agent comprising fluorocarbon and a hardness-enhancing resin, and the hardness-enhancing resin is a polyvinyl acetate resin, a polyester resin, a polyacrylate resin, a melamine resin, or a mixture of two or more thereof.