PET composite material and preparation method thereof

A technology of composite materials and compounds, which is applied in the field of low-temperature-resistant halogen-free flame-retardant PET composite materials and its preparation, can solve the problems of low-temperature resistance and flame-retardant performance of PET materials, and achieve the effects of low cost, simple process, and elimination of influence

Inactive Publication Date: 2013-12-11
ANHUI KEJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a PET composite material and a preparation method thereof, so as to solve the technical problem that the PET material in the prior art is difficult to have low temperature resistance and flame retardancy at the same time; and the preparation method and the method of the PET composite material application

Method used

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  • PET composite material and preparation method thereof
  • PET composite material and preparation method thereof
  • PET composite material and preparation method thereof

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preparation example Construction

[0036] The embodiment of the present invention further provides the above PET composite material preparation method, comprising the following steps:

[0037] Step S01, providing raw materials:

[0038] Weigh the thermoplastic polyester elastomer, PET, halogen-free flame retardant, compatibilizer, coupling agent and dispersant according to the formula;

[0039] Step S02, preparing the first mixture:

[0040] mixing the halogen-free flame retardant and coupling agent in a high mixer for 10 to 20 minutes to obtain the first mixture;

[0041] Step S03, preparing the second mixture:

[0042] mixing the first mixture, PET, dispersant, and dried thermoplastic polyester elastomer and compatibilizer to obtain a second mixture;

[0043] Step S04, extrusion process:

[0044] The second mixture is melt-extruded to obtain a PET composite material.

[0045] Specifically, in step S01, the thermoplastic polyester elastomer, PET, halogen-free flame retardant, compatibilizer, coupling agen...

Embodiment 1

[0052] Embodiment PET composite material of the present invention, comprises the component of following parts by weight:

[0053] 5 parts of TPEE 7246; 82 parts of PET 1100; 3 parts of 790; 0.1 part of KH560; 0.1 part of ADR-4370; 9 parts of OP1240; 1 part of MR01;

Embodiment PE

[0054] The preparation method of the PET composite material of the embodiment of the present invention comprises the following steps:

[0055] a: Weigh the components with the above contents, first dry the thermoplastic polyester elastomer and compatibilizer in a vacuum oven at 45°C for 3-4 hours;

[0056] b: uniformly mixing the halogen-free flame retardant and the coupling agent in a high-speed mixer to obtain the first mixture;

[0057] c: Add the PET resin, dispersant, thermoplastic polyester elastomer and compatibilizer dried in step a to the first mixture, and continue mixing until uniform to obtain a second mixture;

[0058] d: Put the second mixture mixed in step c into the hopper of the twin-screw extruder, melt and extrude, and granulate; The temperature in the zone is 190°C, the temperature in the fourth zone is 200°C, the head is 220°C, the speed of the main engine is 450 rpm, and the pressure is 18MPa.

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Abstract

The invention discloses a PET composite material and a preparation method thereof. The composite material is composed of, by weight, 5-45 parts of a thermoplastic polyester elastomer, 16-88 parts of PET, 10-30 parts of a halogen-free flame retardant, 3-7 parts of a compatilizer, 0.2-2 parts of a coupling agent and 0.1-2 parts of a dispersing agent. Low temperature resistance of the PET composite material is obviously enhanced by adding the thermoplastic polyester elastomer in PET; flame retardation of the composite material is significantly improved by adding the halogen-free flame retardant; and the compatibility among the thermoplastic polyester elastomer, PET and the halogen-free flame retardant are modified by the compatilizer and the coupling agent, so that influence of the halogen-free flame retardant to the low temperature resistance of the composite material is effectively eliminated; and the PET composite material has the low temperature resistance and the flame retardation at the same time. The PET composite material provided by the invention is simple in preparation process, low in cost, high in production efficiency and very suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a low-temperature-resistant halogen-free flame-retardant PET composite material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) has the characteristics of excellent thermal stability, creep resistance, electrical insulation and flame retardancy. It is a general-purpose engineering plastic with excellent performance. The country has formed industrialized production, and the technology continues to develop. Although ordinary PET materials have a certain degree of cold resistance, they still cannot meet the requirements of low temperature resistance (below -40°C) in actual production and application. In order to ensure the flame retardant properties of PET composite materials, it is necessary to add a certain amount of flame retardants to the composite materials. However, the compatibility between flame retardants and macr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/00B29C47/92B29C48/92
CPCB29C48/022B29C48/875B29C48/92B29C2948/92514B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 徐东徐永邢家思
Owner ANHUI KEJU NEW MATERIALS
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