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Hydrolysis resistant polyester resin composition and preparation method thereof

A technology of polyester resin and composition, which is applied in the field of polyester composition with hydrolysis resistance and its preparation, which can solve the problems that polyester materials are easy to hydrolyze and cannot maintain material properties, and achieve the effect of excellent hydrolysis resistance

Inactive Publication Date: 2012-12-26
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a kind of hydrolysis-resistant polyester resin composition in order to solve the shortcoming that the polyester material is easy to hydrolyze and cannot maintain the material performance

Method used

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  • Hydrolysis resistant polyester resin composition and preparation method thereof
  • Hydrolysis resistant polyester resin composition and preparation method thereof
  • Hydrolysis resistant polyester resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] After polyethylene terephthalate (PET, F20S, Toray Corporation of Japan) was vacuum-dried at 150°C for 6 hours, it was mixed with EPON1001 (epichlorohydrin bisphenol A type solid epoxy resin with 0.5% of PET quality, Mn1200) after dry blending, extruded by a twin-screw extruder to obtain blended chips. The temperature of the feeding section of the extruder is 210°C, the temperature of the remaining sections is 260°C, and the screw speed is 500 rpm. Analyze the change of the terminal carboxyl group concentration before and after the hydrolysis test of the obtained resin, and the results are shown in Table 1.

Embodiment 2

[0028] After polyethylene terephthalate (PET, F20S, Toray Corporation of Japan) was vacuum-dried at 150°C for 6 hours, it was mixed with EPON1001 (epichlorohydrin bisphenol A type solid epoxy resin, Mn1200) after dry blending, extruded by a twin-screw extruder to obtain blended chips. The temperature of the feeding section of the extruder is 210°C, the temperature of the remaining sections is 260°C, and the screw speed is 500 rpm. Analyze the change of the terminal carboxyl group concentration before and after the hydrolysis test of the obtained resin, and the results are shown in Table 1.

Embodiment 3

[0030] After polyethylene terephthalate (PET, F20S, Toray Corporation of Japan) was vacuum-dried at 150° C. for 6 hours, it was mixed with EPON1001 (epichlorohydrin bisphenol A type solid epoxy resin, Mn1200) after dry blending, extruded by a twin-screw extruder to obtain blended chips. The temperature of the feeding section of the extruder is 210°C, the temperature of the remaining sections is 260°C, and the screw speed is 500 rpm. Analyze the change of the terminal carboxyl group concentration before and after the hydrolysis test of the obtained resin, and the results are shown in Table 1.

[0031] The resin hydrolysis test result of table 1 embodiment 1-3

[0032]

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Abstract

The invention discloses a hydrolysis resistant polyester resin composition. The composition is prepared from thermoplastic polyester and an end group blocking agent, wherein the mass of the end groupblocking agent is 0.1 to 5 percent of that of the thermoplastic polyester resin. The invention also discloses a preparation method for the composition. The method comprises the following steps of: premixing the thermoplastic polyester and the end group blocking agent, and then melting and blending to prepare the composition. Compared with the matrix polyester resin, the hydrolysis resistant polyester resin blend has better hydrolysis resistance.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polyester composition with hydrolysis resistance and a preparation method thereof. Background technique [0002] Polyester resins are widely used in monofilaments, fibers, films, moldings and containers due to their excellent chemical stability, solvent resistance, abrasion resistance, gloss, gas barrier properties and electrical insulation properties. . However, most polyester materials cannot sufficiently maintain the physical properties of the material due to the hydrolytic degradation of polymer chains when exposed to high temperature and high humidity conditions for a long time. It is very important and necessary to improve the hydrolysis resistance of the polyester composition to adapt to the increasingly wide application of polyester materials and harsh conditions. [0003] It is known that the hydrolytic degradation of polyester resin is due to the attack ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L63/02
Inventor 赖铮铮夏天
Owner TORAY FIBER RES INST(CHINA) CO LTD