采用流延膜技术,将通过纺丝涂覆装置在PET纤维表面进行PE涂覆改性处理的新改性纤维(彩纶)短纤维与棉纤维进行混纺,测试面料的强力、色牢度、耐酸碱能力、抗起毛起球性能、透气性、导湿性、透湿性等指标,分析新面料的理化性能和对人体舒适性的影响.结果表明,新面料中PET-PE纤维织物对液态水的调控能力较好,能克服常规纯化纤面料的闷热感和棉纤维面料吸湿后的湿重感,是日常休闲服装及运动服装的理想选择.
采用流延膜技术,通过纺丝涂覆装置在PET纤维表面进行PE涂覆改性处理,使新纤维形成特殊表面结构,获得持久的吸湿、导汗、速干功能.经实验验证,当涂覆层PE结晶度下降20%以上时,新材料透气率比PET提高3~5倍.新功能性材料价格比同类进口功能性纤维更具优势,具有一定的市场竞争力.
Antistatic composites of nylon-6 filled with ZnO whiskers (ZnOw), the surface of which was treated with a coupling agent, were prepared by melting-blend. Electrical, mechanical and rheological properties of the composites were determined and the effect of ZnOw loading level on these properties was determined. The structure, morphology, thermal properties, and crystallisation behaviour were examined in detail by FT-IR, SEM, TGA, WAXD, DSC etc. The results showed that the ZnOw were well dispersed in the nylon-6 matrix and they interacted well with the nylon-6 matrix. The crystallinity, melt temperature, tensile strength and hardness of the composites decreased gradually with increasing ZnOw content, but the antistatic performance, processing properties and thermal stability improved.
A process for preparing the antistatic nylon 6 / polydielectrolyte composition includes such steps as sequentially adding alkali metal salt or alkylphenyl sulfonate and hydrophilic polymer to reactor, adding absolute alcohol or acetonitrile, stirring while reacting, vacuum drying to obtain powdered or granular polydielectrolyte, mixing it with nylon 6, antioxidizing agent and disperser, fusing and cooling. It has high antistatic and mechanical performance. A process for preparing the antistatic mother particles used for spinning antistatic polyamide fiber features the fusion and mixing of polydielectrolyte, nylon 6, antioxidizing agent and disperser.
Poly(propylene oxide-ethylene oxide) containing ether linkage was used to make complexes with stannic oxide sol,thus producing a kind of anti-static agent for nylon resins.The thermal property and IR spectra of the prepared anti-static agent were studied,and the agent was applied to nylon resins.Anti-static Nylon 6 samples were prepared by employing the synthesized anti-static agents through extrusion and injection molding.Furthermore,the effects of the anti-static agents containing different content of stannic oxide on the volume resistance,mechanical properties and processability of nylon 6 were studied experimentally.The results showed the initial decomposition temperature of the agent was higher than 260 ℃,and there was interaction between stannic oxide sol and the agent,resulted in a composite structure.The volume resistance of the Nylon 6 was decreased by 3 orders of magnitude and the mechanical performance was only slightly influenced by employing the anti-static agent.
Nylon 6/Polyethylene oxide (PEO) polyelectrolyte composites with different molar ratio of alkali metal ion and PEO polymer unit were prepared by means of complexation reaction.The mechanical performance and electrical property of the composites were tested and the affecting mechanism was analyzed.The structure of the composites was characterized by means of SEM and FT-IR.The results showed that when the mass ratio of the alkali metal ion and PEO was 1/6,the volume resistivity of the composite dropped off by 5 orders of magnitude,the impact strength increased greatly while the tensile strength decreased a little.The result of FT-IR suggested that PEO polyelectrolyte interacted well with nylon-6 matrix.
The PA6/ZnO whiskers (ZnO w)composites with different content of ZnO w were prepared by means of melting blend.The electrical and mechanical properties of the composites were tested and the effecting mechanism was analyzed.The structure of the composites was characterized by FT-IR method.The results showed with the increase of the content of ZnO w ,the surface resistance and volume resistance of the composite decreased obviously,the decrease was up to four orders of magnitude;the tensile strength and rigidity of the composite decreased slightly and the impact strength had peak value with the increase of the content of ZnO w.The result of IR suggested surface treated ZnO w interacted well with nylon-6 matrix.