Functional additives and dyes to enhance the performance of fiber or fabric dyeing applications

Title: Functional additives and dyes to enhance the performance of fiber or fabric dyeing applicationsAuthor: Lian-Jun WangDegree-granting units: Donghua UniversityKeywords: acid dyeable;; compatibility;; hybrid;; situ suspension polymerization;; cationic dyes;; no salt;; rare earth complex dyesSummary:


 Printing and dyeing industry, production of "high consumption, low output, heavy pollution and low-security", its economic growth to a huge energy resource depletion and ecological destruction as the price has become the country's resources, environmental pollution, Neodymium Magnets energy consumption and large. Therefore, improving the traditional process, the development of new functional dyes is very important. This paper, we designed and synthesized several new dyes, they are used in fiber or fabric dye, and dyed fibers or fabric properties were tested and evaluated. Main work is described below.


 Polyethylene terephthalate (PTT) is a new type of polyester, with a performance of PET and poly (butylene terephthalate) (PBT) of the excellent processability. PTT fiber can be dyed to achieve atmospheric pressure, and the higher rate of dyeing, paper, PTT fiber dyeability of the acid were studied. The triamine and binary ester transesterification and polycondensation through a series of reactions, synthesis of a series of copolyamides, polyamides were synthesized on the structure and properties were characterized and studied, selected for melt spinning of PTT and PET 5 and 6 copolyamides can be as acidic dye additives. PTT / additives simple Blends poor, add Surlyn ionomer compatibilizer, the improved compatibility tends to uniform distribution of additives, blend PTT / additive / Surlyn is 95/5/2.0, the compatibilizer best. The blends under the spinning process in a certain stretch, get http://www.everbeenmagnet.com/en/products/110-sintered-neodymium-magnets with acid dyeable fiber additives. The use of acid dyes on the fiber at atmospheric pressure boiling dye, showed that: is not additive, because you can not absorb the group of acid dyes, fibers do not dye, when the fiber in two hexene triamine the percentage content of 3%, the red, yellow and gray dye uptake rate reached 65.2%, 79.3%, 45.4%, a marked improvement. With a total of polyamide additives added, rubbing fastness and washing fastness have a certain amount of increase, not less than four, Dyeing depth enhancement, K / S value is larger.


 With titanate coupling agent for surface modification of Sm_2O_3, styrene, etc. as raw materials and benzoyl peroxide as initiator, a suspension polymerization using in situ Rs-PS (Sm_2O_3) hybrid materials. SEM and scanning electron spectroscopy characterization results indicate that the surface modification of Sm_2O_3 particles more evenly dispersed in Sm_2O_3-PS hybrid materials. PS / PP, Rs-PS (Sm_2O_3) / PP blends performance study, PS and Rs-PS added effect of crystalline morphology of PP, the crystallization rate of blends increased. PS / PP and Rs-PS/PP blends Rs-PS/PP the same proportion for the PS / PP system, the melting peaks shift to low temperature, the system is slightly lower melting point, the crystallization peaks shift to high temperature, crystallization temperature has been significantly improved. Rs-PS/PP blends fiber forming studies have shown that, under the same draw ratio, PS / PP fiber and Rs-PS/PP fiber crystallinity than the low degree of crystallinity of pure PP, PS / PP and Rs-PS / PP modified blend fiber tensile strength slightly lower than the pure PP, but the lower range of post-processing can still meet the requirements of the textile. Dyeing properties