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Inflaming retarding modified PBT (Polybutylene Terephthalate) fiber and preparation method thereof

A fiber and phosphorus-based flame retardant technology, applied in the field of modified PBT (polybutylene terephthalate) fiber and its preparation, can solve the problems that are not conducive to large-scale industrial production, and achieve good hand feeling, Ease of operation and the effect of broadening the application field

Inactive Publication Date: 2014-10-29
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has insurmountable defects, which is not conducive to large-scale industrial production

Method used

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  • Inflaming retarding modified PBT (Polybutylene Terephthalate) fiber and preparation method thereof
  • Inflaming retarding modified PBT (Polybutylene Terephthalate) fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Add 55 parts of terephthalic acid, 45 parts of butanediol and 0.4 parts of catalyst tetraethyl titanate into a 2L reactor and react at 230°C until the total amount of distilled water reaches 90% of the theoretical value Above, keep warm for half an hour;

[0041] (2) Add 0.1 part of stabilizer triphenyl phosphate, 5 parts of 2-hydroxyethyl phenylphosphoric acid, 1 part of magnesium hydroxide and 2 parts of aluminum hydroxide (the filler is in the state of single particle dispersion, the particle size is less than 100nm), and then pump Vacuum polycondensation, the temperature of the polycondensation reaction is controlled at 260°C, and the time is 2 hours; when the viscosity of the polymer is in the range of 0.6-0.95, the reaction can be completed to obtain a flame-retardant polyester.

[0042] (3) The flame-retardant polyester obtained in step (2) is melt-spun through a screw spinning machine, and after cooling, oiling, pre-drawing, winding, and drafting are perform...

Embodiment 2

[0045] (1) Add 42 parts of terephthalic acid, 57 parts of butanediol and 0.008 parts of zinc acetate catalyst into a 2L reactor and react at 190°C until the total amount of distilled water reaches more than 90% of the theoretical value. half an hour;

[0046] (2) Add 6 parts of 2-hydroxyethyl methyl phosphate, 2 parts of silicon dioxide, 2 parts of magnesium hydroxide, and 1 part of zirconium hydroxide, and then vacuumize and polycondense. The temperature of the polycondensation reaction is controlled at 240 ° C, and the time is 5h. When the viscosity of the polymer is in the range of 0.6-0.95, the reaction can be completed to obtain the flame-retardant polyester.

[0047] (3) The flame-retardant polyester obtained in step (2) is melt-spun through a screw spinning machine, and after cooling, oiling, pre-drawing, winding, and drafting are performed to obtain uniform structure and controllable fineness flame retardant polyester fiber. Wherein, the spinning temperature is 240°...

Embodiment 3

[0050] (1) Add 60 parts of terephthalic acid, 40 parts of butanediol and 0.8 parts of calcium acetate catalyst into a 2L reactor and react at 240°C until the total amount of distilled water reaches more than 90% of the theoretical value, and keep warm half an hour;

[0051] (2) Add 0.2 parts of stabilizer trimethyl phosphate, 4 parts of 2-hydroxyethyl phenylphosphoric acid, 4 parts of 2-hydroxyethyl methyl phosphate, 0.1 part of silicon dioxide, and then vacuum polycondensation, the temperature of polycondensation reaction Control at 270°C for 3 hours. When the viscosity of the polymer is in the range of 0.6-0.95, the reaction can be completed to obtain the flame-retardant polyester.

[0052] (3) The flame-retardant polyester obtained in step (2) is melt-spun through a screw spinning machine, and after cooling, oiling, pre-drawing, winding, and drafting are performed to obtain uniform structure and controllable fineness flame retardant polyester fiber. Wherein, the spinning...

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Abstract

The invention belongs to the field of fiber preparation and relates to an inflaming retarding PBT (Polybutylene Terephthalate) fiber and a preparation method thereof. The inflaming retarding PBT fiber is prepared from the following components in parts by mass: 42-65 parts of terephthalic acid, 35-58 parts of butanediol, 0.008-1.3 parts of a catalyst, 0-0.5 part of a stabilizing agent, 5-10 parts of a phosphorus based flame retardant and 0.1-10 parts of an inorganic nano material. Compared with the prior art, the preparation method is simple and is easy to operate; a textile processed by the fiber has the advantages of good fire resistance, heat resistance, washing durability and the like; meanwhile, the phosphorus based flame retardant and the inorganic nano material are added to achieve a synergic inflaming retarding effect; the inorganic nano material is added so that polyester is good in spinnability, fiber forming property and heat stability.

Description

field of invention [0001] The invention belongs to the field of fiber preparation, and relates to a modified PBT (polybutylene terephthalate) fiber and a preparation method thereof. technical background [0002] Polyester fiber has the characteristics of high strength, good elasticity, strong wrinkle resistance, good abrasion resistance and excellent heat resistance. Therefore, it is an ideal textile material regardless of whether it is widely used in civil and industrial applications. Polyester fiber is currently the largest and most widely used variety of synthetic fibers. Due to its good mechanical properties and tensile properties, it is widely used in clothing, industry, Jiatong transportation, decorative materials and other fields. However, polyester fiber is a combustible fiber. With the expansion of its application field, in some special fields, such as military, aviation, transportation, entertainment, hospital and other decorative materials, fire-fighting faciliti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/07C08G63/183C08K5/5313C08K3/22
Inventor 杨桂生严莉莉
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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