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PC (Polycarbonate)/PET (Polyethylene Terephthalate) composition and preparation method thereof

A technology of composition and transesterification inhibitor, which is applied in the field of materials, can solve problems such as poor compatibility, affecting the performance and application of blending systems, and achieve the effects of easy control, high flame retardancy, and cost reduction

Active Publication Date: 2014-07-30
SINOPLAST NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the huge difference in the crystallization properties of the two components in the PC / PET blend system, the compatibility is not good, which affects the performance and application of the blend system

Method used

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  • PC (Polycarbonate)/PET (Polyethylene Terephthalate) composition and preparation method thereof
  • PC (Polycarbonate)/PET (Polyethylene Terephthalate) composition and preparation method thereof
  • PC (Polycarbonate)/PET (Polyethylene Terephthalate) composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] In this example, a PC / PET composition is prepared by an in-situ reaction compatibilization method, which is prepared from the following raw materials:

[0104] Polycarbonate (PC, number average molecular weight is 30000) 95 parts,

[0105] 5 parts of polyethylene terephthalate (PET, intrinsic viscosity 0.93dL / g),

[0106] The sum of parts by weight of polycarbonate (PC) and polyethylene terephthalate (PET) is 100 parts,

[0107]

[0108] The preparation method of above-mentioned PC / PET composition, comprises the following steps:

[0109] (1) Place the polycarbonate (PC) at 110°C and dry it for 4 hours, and place the polyethylene terephthalate (PET) at 80°C and dry it for 4 hours. After cooling, the polycarbonate and Add polyethylene terephthalate to the high-speed mixer for pre-mixing;

[0110] (2) Toluene diisocyanate (TDI), 2,2'-(1,3-phenylene)-bisoxazoline (PBO), transesterification inhibitor triphenyl phosphate (TPP), anti-dripping agent , hindered phenolic a...

Embodiment 2

[0114] In this example, a PC / PET composition is prepared by an in-situ reaction compatibilization method, which is prepared from the following raw materials:

[0115] Polycarbonate (PC, number average molecular weight is 15000) 90 parts,

[0116] 10 parts of polyethylene terephthalate (PET, intrinsic viscosity 0.64dL / g),

[0117] The sum of parts by weight of polycarbonate (PC) and polyethylene terephthalate (PET) is 100 parts,

[0118]

[0119] The preparation method of above-mentioned PC / PET composition, comprises the following steps:

[0120] (1) Place the polycarbonate (PC) at 110°C and dry it for 4 hours, and place the polyethylene terephthalate (PET) at 80°C and dry it for 4 hours. After cooling, the polycarbonate and Add polyethylene terephthalate to the high-speed mixer for pre-mixing;

[0121] (2) Toluene diisocyanate (TDI), 2,2'-(1,3-phenylene)-bisoxazoline (PBO), transesterification inhibitor triphenyl phosphate (TPP), anti-dripping agent , hindered phenolic ...

Embodiment 3

[0125] In this example, a PC / PET composition is prepared by an in-situ reaction compatibilization method, which is prepared from the following raw materials:

[0126] Polycarbonate (PC, number average molecular weight is 23000) 85 parts,

[0127] Polyethylene terephthalate (PET, intrinsic viscosity 0.72dL / g) 15 parts,

[0128] The sum of parts by weight of polycarbonate (PC) and polyethylene terephthalate (PET) is 100 parts,

[0129]

[0130] The preparation method of above-mentioned PC / PET composition, comprises the following steps:

[0131] (1) Place the polycarbonate (PC) at 110°C and dry it for 4 hours, and place the polyethylene terephthalate (PET) at 80°C and dry it for 4 hours. After cooling, the polycarbonate and Add polyethylene terephthalate to the high-speed mixer for pre-mixing;

[0132] (2) Toluene diisocyanate (TDI), 2,2'-(1,3-phenylene)-bisoxazoline (PBO), transesterification inhibitor triphenyl phosphite (TPPi), anti-dripping Agent, hindered phenolic ant...

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Abstract

The invention discloses a PC (Polycarbonate) / PET (Polyethylene Terephthalate) composition and a preparation method thereof. The PC / PET composition is prepared from the following raw materials in parts by weight: 70-95 parts of PC, 5-30 parts of PET, 0.1-3 parts of toluene diisocyanate, 0.1-3 parts of 2, 2'-(1, 3-phenylene)-bisoxazoline, 0.1-3 parts of ester exchange inhibitor, 0.1-2 parts of anti-dripping agent, 0.1-1 part of hindered phenol antioxidant, 0.1-1 part of phosphite ester antioxidant and 0.1-1 part of lubricating agent, wherein the weight part sum of PC and PET is 100. The PC / PET composition with good mechanical properties, high flame retardance, chemical resistance and processability is prepared by using an in-situ reactive compatibilization method and can be applied to outer decorating parts of automobiles, office equipment, communication equipment parts and the like.

Description

technical field [0001] The invention relates to the field of materials, in particular to a PC / PET composition and a preparation method thereof. Background technique [0002] The rapid development of China's industry in recent years has continuously expanded the application of polycarbonate (PC), and its demand has also continued to increase. However, with the rapid advancement of science and technology and the continuous upgrading of industrial products, the requirements for material performance are becoming more and more stringent. Conventional polycarbonate can no longer meet the requirements of various types of products in terms of product performance, and PC has a melt viscosity. Large size, poor fluidity, easy hydrolysis at high temperature, poor solvent resistance, high sensitivity to notches, prone to swelling and stress cracking, and large friction coefficient, high melting temperature, high price of special grades, etc., which directly affect its further application...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08L27/18C08K5/134C08K5/526C08K5/103C08K5/29C08K5/353B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/625B29C48/92B29C2948/9259B29C2948/92704B29C2948/92895
Inventor 朱怀才王忠强许环杰钟毅文陈列
Owner SINOPLAST NEW MATERIAL
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