A kind of stabilizer composition for preparing polycarbonate composition

A polycarbonate and stabilizer technology, applied in the field of polycarbonate preparation, can solve the problems of high solubility, poor thermal stability, and large crystallization tendency, and achieve the effects of not harsh storage conditions, degradation inhibition, and oxidation prevention

Active Publication Date: 2019-09-06
CHINA BLUESTAR CHENGRAND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aliphatic polycarbonate has disadvantages such as low melting point, high solubility, poor thermal stability, and low mechanical strength, so it cannot be used as an engineering material
Cycloaliphatic and aliphatic-aromatic polycarbonates, although their melting point has increased and their solubility has also decreased, their practical value is still not enough due to their excessive crystallization tendency, brittleness, and low mechanical strength. to wide application

Method used

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  • A kind of stabilizer composition for preparing polycarbonate composition
  • A kind of stabilizer composition for preparing polycarbonate composition

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Effect test

Embodiment 1

[0031] A kind of stabilizer composition for preparing polycarbonate composition:

[0032] The stabilizer composition is composed of a stabilizer A and a stabilizer B, the stabilizer A is an antioxidant, and the stabilizer B is composed of two molecular chain stabilizers;

[0033] The one antioxidant is a hindered phenolic antioxidant, and the two molecular chain stabilizers are two phosphorus-containing stabilizers;

[0034] The molecular structure of the phosphorus-containing stabilizer is characterized by containing a benzene ring and the phosphorus and the phenyl are directly connected.

Embodiment 2

[0036] A kind of stabilizer composition for preparing polycarbonate composition:

[0037] The stabilizer composition is composed of a stabilizer A and a stabilizer B, the stabilizer A is an antioxidant, and the stabilizer B is composed of two molecular chain stabilizers;

[0038]The one antioxidant is a hindered phenolic antioxidant, and the two molecular chain stabilizers are two phosphorus-containing stabilizers;

[0039] The molecular structure of the phosphorus-containing stabilizer is characterized by containing a benzene ring and the phosphorus and the phenyl are directly connected.

[0040] Preferably in the present invention, the consumption of described stabilizer A is 0.01% of polycarbonate weight; The consumption of described stabilizer B is 0.01% of polycarbonate weight; The weight ratio between the two kinds of molecular chain stabilizers 1:5.

[0041] Stabilizer selection:

[0042] The stabilizer A is one of antioxidant 1076, antioxidant 1010, antioxidant 2246...

Embodiment 3

[0045] A kind of stabilizer composition for preparing polycarbonate composition:

[0046] The stabilizer composition is composed of a stabilizer A and a stabilizer B, the stabilizer A is an antioxidant, and the stabilizer B is composed of two molecular chain stabilizers;

[0047] The one antioxidant is a hindered phenolic antioxidant, and the two molecular chain stabilizers are two phosphorus-containing stabilizers;

[0048] The molecular structure of the phosphorus-containing stabilizer is characterized by containing a benzene ring and the phosphorus and the phenyl are directly connected.

[0049] Preferably in the present invention, the consumption of described stabilizer A is 0.1% of polycarbonate weight; The consumption of described stabilizer B is 0.5% of polycarbonate weight; The weight ratio between the two kinds of molecular chain stabilizers It is 5:1.

[0050] Stabilizer selection:

[0051] The stabilizer A is one of antioxidant 1076, antioxidant 1010, antioxidant...

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Abstract

The invention relates to a stabilizer composition for preparing a polycarbonate composition and belongs to the technical field of preparation of polycarbonate. The stabilizer composition consists of astabilizer A and a stabilizer B; the stabilizer A is an antioxidant; the stabilizer B is formed by compounding two molecular chain stabilizers; the antioxidant is a hindered phenol antioxidant; the two molecular chain stabilizers are two phosphorus-containing stabilizers; and the molecular structure features of the phosphorus-containing stabilizers are as follows: the stabilizer composition contains a benzene ring, and the phosphorus and the phenyl are directly connected. The invention aims to overcome the problems in the prior art and provides the stabilizer composition for preparing the polycarbonate composition. The stabilizer composition is applied to preparation of the polycarbonate composition, and the indexes, such as the optical property, the molecular weight and the molecular weight distribution, of the final polycarbonate composition product still can maintain higher level after high-temperature processing is conducted for many times, so that the application requirement on multi-time high-temperature processing is met.

Description

technical field [0001] The invention relates to a stabilizer composition, more specifically, the invention relates to a stabilizer composition used for preparing polycarbonate compositions, belonging to the technical field of polycarbonate preparation. Background technique [0002] Polycarbonate (PC) is a general term for a high molecular polymer containing a carbonate group in the molecular chain and various materials made with it as a matrix. Polycarbonate (PC) can be divided into aliphatic, cycloaliphatic, aromatic and aliphatic-aromatic types according to the different R groups in its chain link. Aliphatic polycarbonate has the disadvantages of low melting point, high solubility, poor thermal stability and low mechanical strength, so it cannot be used as an engineering material. Cycloaliphatic and aliphatic-aromatic polycarbonates, although the melting point has been improved and the solubility has been reduced, their practical value is still not high due to their exces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/134C08K5/50C08K5/5333C08K5/13C08L69/00
Inventor 周楠李涛原华沈佶邓清田
Owner CHINA BLUESTAR CHENGRAND CO LTD
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