Preparation method of chinlon and olybuthylenesuccinate skin-core fiber
A technology of polybutylene succinate and skin-core fiber, which is applied in fiber treatment, fiber chemical characteristics, rayon manufacturing, etc. It can solve the problems of difficult synthesis process control, high cost of polylactic acid synthesis, and low molecular weight. , to achieve the effects of reducing energy consumption in printing and dyeing, environmental protection, and high degradability
Inactive Publication Date: 2012-08-15
JIANGSU YINGXIANG FIBER
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Problems solved by technology
[0002] In the fiber field, people are increasingly favoring green fibers with environmental protection functions. Polylactic acid is the earliest fully degradable fiber. Lactic acid is mostly produced by biological fermentation, and polylactic acid is synthesized by enzyme catalysis, so the synthesis cost of polylactic acid High, and difficult to control the synthesis process
Aliphatic polyesters are also an important category of degradable polyesters. Among them, polybutylene succinate has a melting point of 115°C, has good stability, is not easy to decompose at room temperature, has good mechanical properties, and has the possibility of processing and application. , is currently a hot spot in the research of degradable polyester. At present, the polybutylene succinate synthesized in China has a low molecular weight and yellowish color, and is mostly used in the field of plastics. The application of polybutylene succinate in the textile field rarely seen
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[0028] Preparation of polysuccinic acid succinate: the raw materials are butanediol and succinic acid, the added molar ratio is 1.13, the catalyst is sulfamic acid and tetrabutyl titanate, and the synthesis of polyester mainly includes esterification and polycondensation. In the continuous polymerization process, the esterification reaction is completed through two esterification tanks at normal pressure and reduced pressure, and the polycondensation reaction is completed through two tanks of pre-condensation and final polycondensation. In the synthesis of polybutylene succinate, catalysts, matting agents, stabilizers, synergists and flame retardants should be added. The amount added is the molar amount of butanediol, the catalyst and the polymerization raw materials enter into the esterification reaction together, and the matting agent, stabilizer, synergist and flame retardant are added in the final stage of the polycondensation reaction.
[0029] Catalyst Sulfamic acid 200×...
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Abstract
The invention relates to a preparation method of chinlon and olybuthylenesuccinate skin-core fiber, which is characterized in that the method is as follows: olybuthylenesuccinate is obtained by polymerization and then is spun together with chinlon, therefore, the skin-core two-component fiber is obtained, wherein a skin layer is olybuthylenesuccinate, a core layer is chinlon, the skin layer completely wraps up the core layer, the weight of the skin layer accounts for 20-60% of the total weight of the fiber, and the linear density range of the finished product fiber is 150dtex-350dtex.
Description
technical field [0001] The invention relates to the field of bicomponent fiber preparation, in particular to a preparation method of nylon and polybutylene succinate sheath-core fiber. Background technique [0002] In the fiber field, people are increasingly favoring green fibers with environmental protection functions. Polylactic acid is the earliest fully degradable fiber. Lactic acid is mostly produced by biological fermentation, and polylactic acid is synthesized by enzyme catalysis, so the synthesis cost of polylactic acid Higher, and it is not easy to control the synthesis process. Aliphatic polyesters are also an important category of degradable polyesters. Among them, polybutylene succinate has a melting point of 115°C, has good stability, is not easy to decompose at room temperature, has good mechanical properties, and has the possibility of processing and application. , is currently a hot spot in the research of degradable polyester. At present, the polybutylene s...
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IPC IPC(8): D01F8/14D01F1/07D01F1/10D01D5/34
Inventor 高永明
Owner JIANGSU YINGXIANG FIBER