最新刊期
卷 26 ， 期 10 ， 2013
- 摘要：Until the end of 2012, the production of chemical fiber reached 38 million tons, accounting for 65% of global output, which is gradually to undertake the important task of leading global chemical industrial scientific and technological progress with the global fiber production shift focus to China. After decades of rapid development, China’s chemical fiber industry has formed a complete industrial chain system, including compatible scientific research, personnel training and equipment manufacturing sector, and have advanced production equipments, abundant technical force, the comprehensive products including conventional chemical fiber, high performance fiber, bio-based fiber, making china become the country which fibers are most widely used in the world. All these have laid a firm foundation for scientific and technological progress, but also are the favorable conditions to achieve the transformation and upgrading of the China’s chemical fiber industry. Present and future, scientific and technological progress of China’s chemical fiber industry is mainly reflected in the following aspects: (1) multi-functional and high differentiation of conventional fiber; (2) low-cost and quality improvement of high-performance fiber; (3) research and development bio-based fiber materials, large-scale production and market applications; (4) low-carbon production technologies of conventional fiber.关键词：Rapid development;Scientific and technological progress;Transformation and upgrading
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发布时间：2022-09-18 - 摘要：The latest research progress in the field of two-dimensional small angle scattering of X-ray is reviewed detailedly in this paper, which consists of theoretical analysis of two-dimensional small angle X-ray scattering for orientation systems and methods of data processing.关键词：Small angle X-ray scattering;Orientation systems;Preferred orientation
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发布时间：2022-09-18 - 摘要：Polymer based nanocomposite materials, combining the function of nanomaterials and the workability of polymer, were prepared by nanomaterials and fiber matrix. This paper mainly reviews the research status of flame retardant nanocomposite fiber, UV-resistant nanocomposite fiber, antibacterial nanocomposite fiber, conductive nanocomposite fiber and other functional nanocomposite fibers, in which modification of nanomaterials, construction of composite polymer, spinning methods and functional evaluation of materials were involved. Several main developments of nanocomposite fiber were put forward: structure design, controllable preparation and functional composite technology of nanomaterials; modification technology of nanomaterials for fiber-forming polymers and finishing technology for nanocomposite fiber; development of multifunctional composite fiber, as well as the use of nanotechnology to develop strategic emerging functional fiber for industries; research and development of intelligent fiber; in addition, evaluation of ecological security and function for nanocomposite fibers and textiles was necessary too.关键词：Nanocomposite;Functional fiber;Polymer;Composite fiber
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发布时间：2022-09-18 - 摘要：The melt direct spinning becomes the most advanced leading process in the world, due to the features of its large capacity, low energy consumption, high efficiency and low cost. However, the melt direct spinning is facing the homogeneous structural problem of the equipment, techniques, products and market. In order to unify the large scale, low cost, high added value and high quality in the fiber products, it eager to develop the production equipment and techniques of low energy, flexibility, automation, and informatization. Combining the polyester fiber formation and engineering technologies at home and abroad, the newest research progress is introduced through the flexible preparation of the melt direct spinning polyester fiber, melt transportation and online addition, the spinning box design, engineering simulation model, energy saving and intelligent management. It suggests that large capacity, low cost, melt direct spinning, flexibility, multi-varieties are the development direction for polyester enterprise in China. At last, the prospect of is discussed in this paper. Based on the theory of polymerization and spinning, engineering technologies on large capacity polymerization, online addition, compact spinning, energy conservation and intelligent logistics are becoming the future trends of polyester industry in China.关键词：Polyester fiber;Melt direct spinning;Flexibility;Online addition;Simulation model
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发布时间：2022-09-18 - 摘要：The melt direct spinning for the biggest kind of synthetic fiber-polyester fiber, has been the most advanced and leading technology due to the advantage of high productivity, low energy, high efficiency, and low costing. However, it also exists problems of the long process, mutual effect between polymerization and spinning conditions, widely influence of the process adjustment, hardness of the quality control, difficulty of the new product development, and the low ratio of differentiation. It needs to advocate the large capacity of polyester fibers to be high quality, differential, functional, flexibility, and their combination, while the key engineering scientific problems is spinning simulation model. Based on the research of the melt spinning simulation model, this article shows the details of how to build a spinning simulation model from the material parameter simulation, flow field simulation, process simulation, and relationship of the fiber structure and property. The applications of the melt spinning simulation model which mainly introduces the development of superfine fiber, the preparation of modified co-polyester fibers, and the forming of shape fibers. Finally, the development of polyester fibers in the future is prospected. It is pointed that high combination of digital simulation and the spinning technology should be persisted in future; the digital platform of research and spinning technology should be established; combination with practical process, full digital control process basing on the phenomenological engineering model and properties prediction model etc, should be fulfilled.关键词：Polyester fiber;Melt direct spinning;Differentiation;Spinning simulation model;Full digital control process
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发布时间：2022-09-18 - 摘要：Polypropylene (PP) fibers are widely applied in various fields, this can be attributed to advantageous, namely easy processability, low specific, almost zero water adsorption, good chemical resistance as well as wide availability and low cost. In this paper, an introduction to the fine denier PP fibers, dyeable PP fibers, antibacterial PP fibers, antistatic PP fibers, anti-ultraviolet PP fibers and flame retardant PP fibers, as well as the application of nanotechnology in the dyeable modification PP fibers and functional PP fibers were introduced basing on recent literature reports and the research works in our research group. PP fibers are moving in highly efficient functional, multifunctional, and high-performance direction. PP fibers were expected to occupy an important position in the field of biomaterials for its excellent properties.关键词：Polypropylene;Fibers;Fine denier;Dyeability;Functionalization
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发布时间：2022-09-18 - 摘要：Polybenzoxazole (PBO) fiber with extraordinary high strength, modulus, excellent heat stability and flame resistance has received great attention as one of competitive candidates applied in the field of national defense and aerospace. In this article, the preparation of PBO polymer with high molecular weight, the technique to spin high performance PBO fiber were studied; and the property improvement of PBO fiber, including the interface strength, ultraviolet stability and compressive strength were investigated. The development history of PBO fiber was also shortly reviewed. We found that only under the optimization of monomers, processing and equipments could PBO polymer with high molecular weight be obtained; high performance PBO fiber could be spun by crystalline spinning through twin screw extruder which is also the polymerization reactor at the same time. It was also found that the chemically incorporation of the third monomer containing ionic groups or dihydroxy groups into PBO chains could greatly improve the interfacial shear strength with epoxy resin; and the compressive strength of PBO fiber could also be raised owing to the hydrogen bonds between PBO macromoleculars occurred between dihydroxy groups and nitrogens in benzobisoxazole rings of PBO chains; moreover the third monomer containing dihydroxy groups possesses the ability to absorb ultraviolet light, which makes modified PBO fiber more resistance to ultraviolet exposure. In addition, the loading of some ultraviolet absorbents during polymerization and the coating of soluble polyimides on PBO fiber surface are also effective mothods to improve the ultraviolet stability.关键词：Polybenzoxazole (PBO);High performance fibers;Fiber processing;Modification
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发布时间：2022-09-18 - 摘要：Polyimides are a kind of polymers containing imide ring in the backbone, and the high conjugation and aromaticity endow the fiber with high tensile strength and modulus, excellent thermal stability, chemical resistance and other outstanding performances. Polyimide fiber with the excellent properties will be extensively used in many fields, such as aeronautics and astronautics, military and civilian, insulation, separation and environmental protection, and other potential demands. However, due to the monomer structural limitation and some unsolved spinning techniques, the development and application of polyimide fiber are restricted. In recent years, polyimide fiber has been developed prosperously along with the synthesis of various structural polyimides and the improvement in spinning technique. In this review, we give an overview of the excellent properties, preparation and application fields of polyimide fiber. In addition, the domestic and foreign achievements and industrialization progress are introduced briefly.关键词：Polyimide fiber;High performance fiber;Progress
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发布时间：2022-09-18 - 摘要：Three processing technologies of PTFE fiber by film splitting, emulsion and gel spinning, and paste extrusion were overviewed and investigated in this paper. PTFE staple fiber and filament processing technology by film splitting was established based on the proprietary die design and processing parameters on fiber fineness, uniformity, mechanical properties, thermal shrinkage were discussed; PTFE short fiber processing technology was put forward by PTFE emulsion and PVA solution blending and then complexing between PVA and boric acid, the effects of sintering and drawing were also discussed. PTFE filament processing technology using paste extrusion facilitated by the readiness of fibrilation of PTFE resin under shear was optimized through control of die entrance, conical die design, and die land/diameter ratio, and lubricant type screening.关键词：Polytetrafluoroethylene (PTFE);Fiber/Filament;Film splitting;Gel spinning;Paste extrusion
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发布时间：2022-09-18 - 摘要：The spinning of polycarbosilane (PCS) fiber is one of the critical technologies to generate silicon carbide (SiC) fibers. The quality of green fiber has a great effect on the properties of SiC fiber. In this paper, the basic rheology, viscosity and flexibility, spinability and spinning stability of PCS were investigated on the basis of characteristic of PCS and PCS fiber.关键词：Silicon carbide fiber;Green fiber;Polycarbosilane;Formation
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发布时间：2022-09-18 - 摘要：Absorptive functional fiber for organic liquids is a kind of novel fiber material that can absorb certain organic liquids several times as its original weight. Absorptive functional fiber for organic liquids is characterized by its high absorptive rate, large saturated absorbency, easy recyclable and disposal, which makes it highly promising in the field of environmental protection, water treatment and separation of organic liquids. And it also has become a hot research topic in absorptive materials. In this paper, the history of absorptive functional fiber for organic liquids development has been reviewed; different types of polymers and monomers and preparation methods are introduced; the fiber forming mechanisms of absorptive functional fiber are investigated. In addition, this review illustrates the effects of spinning parameters on fiber structures and properties, and then summarizes the recent advances in regeneration and application field. At last, the promising approaches and developing direction are forecasted.关键词：Absorptive functional fiber for organic liquids;Fiber spinning mechanism;Crosslinking structure
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发布时间：2022-09-18 - 摘要：As a kind of cellulose in nature, bacterial cellulose has attached much attention benefit from its natural raw materials, extensive sources, free of contamination, mild biosynthesis, product friendly and biodegradable, as well as its excellent physical and chemical properties such as high water holding capacity, flexibility, high reactivity. In this paper, we reviewed the fermentation technology for bacterial cellulose in the past 3 decades, and summarized the issues on optimization of strains for bacterial cellulose, carbon source selection, preparation technology, structure control, post-processing methods, etc. Based on these issues, we pointed out the major tops in this research field in the near future. Meanwhile, the potential industrial application of bacterial cellulose was prospected.关键词：Bacterial cellulose;Fermentation technique;Large-scale fabrication;Industrial application
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发布时间：2022-09-18 - 摘要：Firstly the process development of the biological raw material of 1,3-PDO and bio-EG was summarized in this paper. The recently development of the two kinds of biological based polyester PTT and PDT was then introduced. The synthesis route, process conditions, as well as the improvements of spinning technology of the two kinds of biomass polyester was introduced. The properties of the two kinds of biomass polyester, PTT and PDT was compared with that of PET. Finally, the engineering industry prospects of the two new biomass polyester in future was forecast in this paper.关键词：Biological based polyester;PDT;PTT
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发布时间：2022-09-18 - 摘要：Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) as a kind of thermoplastic bio-polymer synthesized by microbial fermentation, presents the advantages of good biodegradability, histocompatibility, etc. The recent research developments of PHBV were introduced from physical, chemical modification and its fiber forming. The physical modification of PHBV are composed of PHBV/inorganics nanocomposites, PHBV/organics nanocomposites, PHBV/petroleum-based polymer composites and fully bio-degradable composites, while the chemical modification was proceeded by graft modification, block modification and copolymerization modification. The advantages and disadvantages of modified PHBV have been compared and discussed from the modified methods and medium. The fiber formation of modified PHBV are mainly processed by melt spinning, dry spinning and electrospinning method. The melt spun PHBV fibers will be targeted to substitute some of the synthetic petroleum-based fibers like PP, PET fibers, while electrostrun PHBV fibers will be successfully and widely used in the field of tissue engineering and regenerative medicines. Moreover, the further research and development direction of PHBV were also presented.关键词：Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) PHBV;Physical modification;Chemical modification;Melt-spinning;Electrospinning
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发布时间：2022-09-18 - 摘要：Small Angle X-ray scattering (SAXS) is a universal technique to study the submicroscopic structures of polymers including proteins. As one of the most available biomaterials, regenerated silk fibroin (RSF) with outstanding biocompatibilities has great potential applications in biomedical materials as well as biomimetic materials. RSF materials, such as film and fiber, are normally processed from its solution. To improve the properties of RSF materials, it is necessary to understand the microscopic/submicroscopic structures of RSF before and after processing. This paper introduced SAXS methods for concentrated RSF solution to obtain the aggregation structure parameters and construct the 3D model of RSF solution. The structure parameters of RSF film were obtained from correlation function by using Debye-Bueche method. The long period, interface and orientation of RSF fibers were calculated by applying Ruland method.关键词：SAXS;Regenerated silk fibroin;Structure;Method
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发布时间：2022-09-18 - 摘要：Using a new system of NaOH/thiourea/urea as the solvent to dissolve the cellulose, then filtrating and degassing the solution, last obtaining a clear cellulose solution. Different cellulose films were produced from different coagulations such as H2SO4, HOAC(CH3COOH), H2SO4/Na2SO4. The morphology and mechanical property of cellulose films were investigated through SEM, XRD and tensile test. The optimum solidification temperature of cellulose film is 20℃, and different optimal concentration of coagulation bath and the coagulation time are H2SO4-5%-3min, HOAC-9%-3min, H2SO4/Na2SO4-7%/9%-5min. The best coagulation bath and its solidification conditions are H2SO4/Na2SO4-7%/9%-5min, 20℃. The cellulose film has an uniform density of hole structure, its strength and elongation at break are 166.2MPa-13.5%, respectively.关键词：Cellulose;Alkali compound solvent;Cellulose films;Coagulation bath
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发布时间：2022-09-18 - 摘要：In this paper, Polyethylene-co-polyvinyl(EVOH) nanofibers were successfully prepared by melt extrusion of immiscible blends. Then the EVOH nanofiber membranes were prepared by wet-laid process. The morphology, crystallization properties of EVOH nanofibers and morphology, porosity, pore size and pore size distribution of EVOH nanofiber membranes were analyzed. The results showed that the average diameter of EVOH nanofibers were around 162-260nm, the processing conditions and method had no significant effect on the structure and crystallization properties of EVOH nanofiber. The pore size and pore size distribution of EVOH nanofiber membranes increased and narrowed with the increasing of thickness of nanofiber membrane respectively. As the increased of EVOH of EVOH/CAB system during the preparation of nanofibers, diameter of nanofibers and porosity of nanofiber membranes increased, however, the specific surface area of nanofiber membrane decreased.关键词：Polyethylene-co-polyvinyl(EVOH);Nanofiber;Nanofiber membrane;Pore size distribution;Specific surface area
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发布时间：2022-09-18 - 摘要：The negative ions fiber is which can generate negative ions in certain physical stimulation.In this paper, the dyeing performance of nylon 6 negative ions fiber and nylon 6 fiber was compared by orthogonal experiment. The results find that nylon 6 negative ions fiber have a lower amount of dye than nylon 6 fiber, and the bath’s pH has greater impact on nylon 6 negative fiber. This thesis also study dyeing properties of nylon 6 neigative fiber and discussed the influence of dyeing on nylon 6 fiber anion properties, and found that at pH=4.0, the density of dye liquor is 0.6g/L, bath ratio is 1:50, holding temperature is 95℃, the holding time is 45 min the are the optimum conditions for nylon 6 negative fiber dyeing. And dyeing has a little impact on nylon 6 anion properties.关键词：Negative fiber;Dyeing;Amount of dye
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发布时间：2022-09-18 - 摘要：We used wet-spinning method to prepare all-carbon macroscopic hybrid fibers composed of large size graphene oxide (LGO) and carboxylic multiwall carbon nanotubes (MWNT-COOH). The fibers have excellent eletrochemical properties due to the synergistic effect of LGO and MWNT-COOH. The parallelogram shapes of cyclic voltammogram (CV) curves are typical behavior of carbon-based electrochemical double-layer capacitors; Area specific capacity reaches to 32.6mF/cm2 at 0.1mA/cm2 in galvanostatic charge and discharge test. Moreover, the hybrid fibers integrate high conductivity and fairly high mechanical properties. The conductivity reaches to 500-800S/m after chemical reduction. The tensile strenghth and Young’s modulus are 377MPa and 4.2GPa, respectively. Hence, graphene-carbon nanotubes hybrid fibers are promising in flexible energy storage devices.关键词：Graphene;Carbon nanotube;Hybrid fiber;Flexible;Supercapacitor
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发布时间：2022-09-18 - 摘要：Coloring flame retardant copolyester with some inorganic and organic dyes was prepared by spun-dyed technology, and its spinnability was also studied. The crystallization properties, thermal behaviors, burning test and mechanical test of the coloring flame retardant copolyester were investigated by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), limiting oxygen index test (LOI) and yarn tensile strehgth tester. The results showed that the effects of dyes on the crystallization properties and thermal stability properties of flame retardant copolyester are negligible. Moreover, the coloring flame retardant copolyester showed a good flame retardant performance with LOI of 33%-35%. It also had a good spinnability. The thermal shrinkage of the coloring flame retardant copolyester fiber decreased, and the dimension stability improved. Its fracture strength can be more than 2.0 cN/dtex which can meet the requirement of textiles.关键词：Spun-dyed;Copolyester fiber;Flame retardant;Mechanical test
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发布时间：2022-09-18
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