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High-elasticity flame retardant polyester

A flame-retardant polyester and high-elasticity technology, applied in the field of high-elasticity and flame-retardant polyester, can solve the problems of poor air permeability and poor absorption, and achieve the effects of increased viscoelasticity, good compatibility and good flame retardant performance

Inactive Publication Date: 2016-11-16
林启东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting polyester not only has good flame retardancy and elongation at break, but also overcomes the shortcomings of poor air permeability and poor absorbency

Method used

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  • High-elasticity flame retardant polyester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-elastic flame-retardant polyester, which is made of 5 parts by weight of polyethylene glycol, 10 parts of purified terephthalic acid, 10 parts of bamboo fiber, 5 parts of phosphate starch, 5 parts of diatom mud, 30 parts of polyester PET And 30 parts of polyester PTT made.

[0022] Its preparation process is as follows:

[0023] (1) Put polyethylene glycol, terephthalic acid and phosphate starch into the reaction kettle according to the ratio, raise the temperature to 160°C, keep the temperature for 2 hours, then continue to heat up to 190°C, keep the heat for 2 hours, and finally the vacuum degree is - React for 3 hours under the conditions of 0.95MPa and 230°C to obtain a mixed solution;

[0024] (2) Weave plant fibers into single-ply yarns with a diameter of 1.5mm, and cut them transversely into fiber segments with a length of 1mm;

[0025] (3) Soak the fiber segment obtained in step (2) in the mixed solution obtained in step (1) for 100 minutes to obtain th...

Embodiment 2

[0029] A high-elastic flame-retardant polyester, which is made of 8 parts by weight of polyethylene glycol, 20 parts of purified terephthalic acid, 12 parts of soybean fiber, 12 parts of phosphate starch, 12 parts of diatom mud, 38 parts of polyester PET and 20 parts of polyester PTT.

[0030] Its preparation process is as follows:

[0031] (1) Put polyethylene glycol, terephthalic acid and phosphate starch into the reaction kettle according to the ratio, raise the temperature to 165°C, keep the temperature for 2 hours, then continue to heat up to 195°C, keep the temperature for 2 hours, and finally the vacuum degree is - React for 3 hours under the conditions of 0.95MPa and 215°C to obtain a mixed solution;

[0032] (2) Weave plant fibers into single-ply yarns with a diameter of 2mm, and cut them transversely into fiber segments with a length of 2mm;

[0033] (3) Soak the fiber segment obtained in step (2) in the mixed solution obtained in step (1) for 100 minutes to obtain...

Embodiment 3

[0037] A high-elastic flame-retardant polyester, which is composed of 15 parts by weight of polyethylene glycol, 30 parts of purified terephthalic acid, 25 parts of wood fiber, 15 parts of phosphate starch, 15 parts of diatom mud, 50 parts of polyester PET And 25 parts of polyester PTT made.

[0038] Its preparation process is as follows:

[0039] (1) Put polyethylene glycol, terephthalic acid and phosphate starch into the reaction kettle according to the ratio, raise the temperature to 170°C, keep the temperature for 2 hours, then continue to heat up to 210°C, keep the heat for 2 hours, and finally the vacuum degree is - React for 3 hours under the conditions of 0.95MPa and 210°C to obtain a mixed solution;

[0040] (2) Weave the plant fiber into a single-ply yarn with a diameter of 3 mm, and cut it transversely into fiber segments with a length of 1 mm;

[0041] (3) Soak the fiber segment obtained in step (2) in the mixed solution obtained in step (1) for 100 minutes to ob...

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Abstract

The invention discloses high-elasticity flame retardant polyester. The high-elasticity flame retardant polyester is prepared from 5-15 parts of polyethylene glycol, 10-30 parts of purified terephthalic acid, 10-25 parts of plant fibers, 5-15 parts of phosphate starch, 5-15 parts of diatom ooze, 30-50 parts of polyester PET (polyethylene terephthalate) and 20-30 parts of polyester PTT (polytrimethylene terephthalate) by weight. The obtained polyester not only has good flame retardance and elongation at break, but also overcomes the defects of poor breathability and absorbency, and the like.

Description

technical field [0001] The invention belongs to the field of polyester modification, and in particular relates to a high-elastic flame-retardant polyester. Background technique [0002] Polyester is one of the important varieties in synthetic fibers. It is polyethylene terephthalate (PET) obtained by esterification or transesterification polycondensation reaction of purified terephthalic acid or terephthalate and ethylene glycol, and is produced by spinning and post-processing. into fibers. [0003] However, PET itself is easy to burn, and it is easy to form molten droplets when burning, causing a bigger fire. Therefore, the flame retardant modification of PET has become one of the problems that need to be solved urgently. [0004] On the other hand, due to the precise arrangement of the internal molecules of polyester and the lack of hydrophilic structure between the molecules, the moisture regain is very small, the moisture absorption performance is poor, and there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/18D01F8/02D01F1/07D01F1/10D06M15/507D06M15/11D01D1/00D01D5/08D01D5/12D01D10/02D06M101/04
CPCD01F8/14D01D1/00D01D5/08D01D5/12D01D10/02D01F1/07D01F1/10D01F8/02D01F8/18D06M15/11D06M15/507D06M2101/04D06M2200/20
Inventor 林启东
Owner 林启东
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