Preparation method of compound additive for polycarbonate modification

A technology of composite additives and polycarbonate, which is applied in the field of preparation of composite additives in polycarbonate modification, can solve the problems of insufficient hydrolysis stability, poor scratch resistance, and UV resistance, etc. Achieve high use value, prolong service life and improve surface performance

Inactive Publication Date: 2017-07-14
DALIAN RES & DESIGN INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant BI grade, resistant to weak acids, weak alkalis, neutral oils, ultraviolet light, strong alkalis, hydrolysis stability is not high enough, sensitive to gaps , resistance to organic chemicals, poor scratch resistance, yellowing when exposed to ultraviolet light for a long time

Method used

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  • Preparation method of compound additive for polycarbonate modification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: preparation compound auxiliary agent: with the antioxidant of mass fraction 46 parts, the auxiliary antioxidant of mass fraction 46 parts, the ultraviolet absorber of mass fraction 6 parts and the fluorescent whitening agent of mass fraction 2 parts in high mixing The machine is fully mixed and stirred evenly, each component is granulated, and the obtained granules are sieved to obtain a composite additive for polycarbonate modification. See attached table 1 for the improvement of polycarbonate performance by the composite additive.

Embodiment 2

[0024] Embodiment two: preparation compound auxiliary agent: with the antioxidant of 40 parts of mass fractions, the auxiliary antioxidant of 40 parts of mass fractions, the ultraviolet absorber of 15 parts of mass fractions, the fluorescent whitening agent of 5 parts of mass fractions in high mixing The machine is fully mixed and stirred evenly, each component is granulated, and the obtained granules are sieved to obtain a composite additive for polycarbonate modification. See attached table 1 for the improvement of polycarbonate performance by the composite additive.

Embodiment 3

[0025] Embodiment three: preparation compound auxiliary agent: with the antioxidant of 44 parts of mass fractions, the auxiliary antioxidant of 44 parts of mass fractions, the ultraviolet absorber of 10 parts of mass fractions, the fluorescent whitening agent of 2 parts of mass fractions in high mixing The machine is fully mixed and stirred evenly, each component is granulated, and the obtained granules are sieved to obtain a composite additive for polycarbonate modification. See attached table 1 for the improvement of polycarbonate performance by the composite additive.

[0026] Schedule 1

[0027]

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Abstract

The invention discloses a preparation method of a compound additive for polycarbonate modification. The compound additive is prepared from the following components in parts by weight: 40-50 parts of an antioxidant, 40-50 parts of an auxiliary antioxidant, 10-15 parts of an ultraviolet light absorber and 1-5 parts of a fluorescent brightener, wherein the antioxidant is hindered phenols; the auxiliary antioxidant is dipropyl thionate or phosphites; the ultraviolet light absorber is triazine or benztriazoles; and the fluorescent brightener is benzoxazole. The additives are blended to obtain the compound additive in polycarbonate modification. According to the compound additive, the oxidation resistance, the heat stability and the photoaging resistance of polycarbonate can be improved.

Description

technical field [0001] The invention belongs to the technical field of polymer material additives, and improves the performance of polymer material polycarbonate by adding various additives of different varieties, different functions and different doses. The composite auxiliary agent of the present invention can be applicable to polymers such as polycarbonate, polyester, polyamide engineering plastics and polyethylene, polypropylene, polystyrene, polymethyl methacrylate general plastics, etc. The preparation method of compound additive in carbonate modification. Background technique [0002] For a long time, polycarbonate (referred to as PC) has been widely used in building materials industry, automobile manufacturing industry, medical equipment and aerospace and other fields. Due to the special structure of polycarbonate, it has become the fastest growing among the five major engineering plastics such as polycarbonate, polyoxymethylene, polyamide, thermoplastic polyester, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K5/00C08K5/13C08K5/375C08K5/101C08K5/524C08K5/3492C08K5/3475C08K5/353
CPCC08K5/00C08K5/101C08K5/13C08K5/3475C08K5/3492C08K5/353C08K5/375C08K5/524C08L69/00
Inventor 张晓利罗文新王波赵汝鸣
Owner DALIAN RES & DESIGN INST OF CHEM IND
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