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Preparation method of composite material with high-temperature-resisting and flame-retarding properties and material

A composite material and high-temperature-resistant technology, which is applied in the field of preparation of composite materials with high-temperature resistance and flame-retardant properties, can solve the problems of no benefit to the human body, reduced temperature resistance of materials, and lack of flame-retardant functions, etc., to achieve applicability expansion , simple process, good flame retardant performance

Active Publication Date: 2018-08-10
HEFU NEW MATERIAL TECH WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The modified polyester fiber currently on the market has high temperature resistance and spinnability but does not have the function of flame retardancy, and when it has the function of flame retardancy, the temperature resistance of the material is reduced
At the same time, the current finishing and modification of flammable fabrics in the market usually use methods such as coating, spraying, and dipping to bond flame retardants to the surface of the fabrics. Although some flame-retardant effects can be obtained, the flame-retardant effects will fade over time. while falling
The other is the blending modification method, which adds halogenated flame retardants to the PET material, which has good flame retardancy, but has great toxicity after burning, which is not beneficial to the human body.

Method used

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  • Preparation method of composite material with high-temperature-resisting and flame-retarding properties and material
  • Preparation method of composite material with high-temperature-resisting and flame-retarding properties and material
  • Preparation method of composite material with high-temperature-resisting and flame-retarding properties and material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] In terms of mass percentage, the raw material formula is 94.6% of pure PET, 5% of PCT, and 0.2% of antioxidant. (Antioxidant is a 1:2 compound of Antioxidant 1010 and Antioxidant 300)

[0069] The intrinsic viscosity of the pure PET is 0.7dL / g;

[0070] The intrinsic viscosity of the PCT is 0.8 dL / g.

[0071] The pure PET and PCT were dried at 130°C for 6h and then mixed, then antioxidants and transesterification inhibitors were added, stirred at 200rpm for 5min, put into the extruder, and extruded and pelletized at 250~290°C to obtain a resistant For composite materials with high temperature and flame retardant properties, the extrusion color is the natural color of the material, and the process flow chart for its production is as follows Figure 26 Shown.

[0072] The performance test of the prepared composite material is carried out, the melting temperature is tested with a DSC differential thermal analyzer, and the oxygen index test is tested according to the FZ / T 51007-20...

Embodiment 2

[0074] In terms of mass percentage, the raw material formula is 89.6% of pure PET, 10% of PCT, and 0.2% of antioxidant. (Antioxidant is a 1:2 compound of Antioxidant 1010 and Antioxidant 300)

[0075] The intrinsic viscosity of the pure PET is 0.7dL / g;

[0076] The intrinsic viscosity of the PCT is 0.8 dL / g.

[0077] The pure PET and PCT were dried at 130°C for 6h and then mixed, then antioxidants and transesterification inhibitors were added, stirred at 200rpm for 5min, put into the extruder, and extruded and pelletized at 250~290°C to obtain a resistant For composite materials with high temperature and flame retardant properties, the extrusion color is the natural color of the material, and the process flow chart for its production is as follows Figure 26 Shown.

[0078] The performance test of the prepared composite material is carried out, the melting temperature is tested with a DSC differential thermal analyzer, and the oxygen index test is tested according to the FZ / T 51007-2...

Embodiment 3

[0080] In terms of mass percentage, the raw material formula is 91.6% of pure PET, 8% of flame retardant PCT, and 0.2% of antioxidant. (Antioxidant is a 1:2 compound of Antioxidant 1010 and Antioxidant 300)

[0081] The intrinsic viscosity of the pure PET is 0.7dL / g;

[0082] The flame-retardant PCT has a phosphorus content of 2500 ppm and an intrinsic viscosity of 0.65 dL / g.

[0083] The pure PET and flame-retardant PCT were dried at 130°C for 6 hours and mixed, then antioxidants and transesterification inhibitors were added, stirred at 200 rpm for 5 minutes, put into the extruder, and extruded and granulated at 250-290°C to obtain Composite materials with high temperature resistance and flame retardant properties, the extrusion color is the natural color of the material, and the process flow chart for its production is as follows Figure 26 Shown.

[0084] The performance test of the prepared composite material is carried out, the melting temperature is tested with a DSC differenti...

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Abstract

The invention provides a preparation method of a composite material with high-temperature-resisting and flame-retarding properties and the material. The method comprises the following steps: after drying PET (Polyethylene Terephthalate), PCT (poly1,4-cyclohexylene dimethylene terephthalate), flame-retarding PET and flame-retarding PCT, mixing; then adding an antioxidant and an ester exchange inhibitor and uniformly stirring to obtain a mixture; adding the mixture into an extruder, and extruding and granulating at 250 to 290 DEG C to obtain the composite material with the high-temperature-resisting and flame-retarding properties. The invention provides the material with the high-temperature-resisting and flame-retarding properties and the material has good flame-retarding performance (highoxygen index) and also has a relatively high melting point (greater than 245 DEG C).

Description

Technical field [0001] The invention belongs to the technical field of polymer composite materials, and specifically relates to a preparation method and material of a composite material with high temperature resistance and flame retardant properties. Background technique [0002] PET (Ethylene Terephthalate) polyester resin is generally milky white translucent or colorless and transparent, with excellent mechanical properties, electrical insulation, stable chemical resistance, low cost, but easy to hydrolyze and insufficient temperature resistance. When finishing after spinning, it is easy to deform and shrink, and at the same time it is easy to burn and low, which is very easy to cause fire and cannot prevent the spread of fire. Therefore, it also hinders the scope of application of polyester fiber. With the development of society and the advancement of science and technology, traditional textile fabrics can no longer meet the needs of people, especially in the fields of aviati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K5/134C08K5/375C08K5/5415C08K5/521C08K5/00
CPCC08L67/02C08L2201/02C08L2201/08C08L2205/025C08L2205/03C08K5/134C08K5/375C08K5/5415C08K5/521C08K5/00
Inventor 王俊龙何强蒋红亮杨广慧邹湘坪
Owner HEFU NEW MATERIAL TECH WUXI
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