Solvent-resistant and low temperature impact-resistant polycarbonate alloy material and preparation method thereof

A technology of polycarbonate and alloy materials, applied in the field of polycarbonate alloy materials and its preparation, can solve the problems that the improvement effect is limited to xylene, the improvement range is not obvious, and the scope of application is narrow, achieving excellent rigidity-toughness balance performance, Synergistic improvement of chemical resistance and mechanical properties, improving the effect of easy stress concentration

Inactive Publication Date: 2020-03-27
上海华合复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN101280099A prepared a two-phase alloy material of polycarbonate / polyamide, and focused on improving its stability in xylene solvent, but its improvement effect was limited to xylene as a solvent, and the scope of application was too narrow; CN105860474A used The alloying method of PC / PBT is used to improve the solvent resistance of polycarbonate, but more attention is paid to the improvement of the heat resistance stability of the material; CN107118531A and CN106893298A have all added PET (polyethylene terephthalate), focusing on By improving the compatibility of the alloy, the solvent resistance of the polyester material can be fully utilized to promote and improve the solvent resistance of the entire alloy material.
Looking at the above-mentioned physical blending methods, it can be seen that because the physical blending modification effect is often significantly lower than that of the chemical modification method, its application range is narrow and the improvement is not obvious. Further discount, therefore, it is necessary to find a new modification method that combines the advantages of both chemical modification and physical modification, in order to obtain satisfactory solvent resistance modification effect

Method used

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  • Solvent-resistant and low temperature impact-resistant polycarbonate alloy material and preparation method thereof
  • Solvent-resistant and low temperature impact-resistant polycarbonate alloy material and preparation method thereof
  • Solvent-resistant and low temperature impact-resistant polycarbonate alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] According to the data of Example 1 shown in Table 1, weigh and take fluorine-containing acrylate monomer, maleic anhydride monomer, and surfactant in a certain proportion, and prepare an emulsified solution with a concentration of 1:10 to 1:30 with water , add a high-efficiency surfactant under high-speed stirring to form a relatively stable monomer emulsion, then raise the temperature to 65°C, reduce the stirring speed and add azotized fullerene powder at the same time to initiate anionic emulsion polymerization of the monomer, and the reaction After the end, the moisture contained therein is removed by repeated rotary evaporation treatment, so as to obtain organic-inorganic hybrid polymer composite microspheres.

[0040] Formulation table (unit: gram) of polymer composite microsphere of table 1

[0041] Example 1 Example 2 Example 3 Example 4 Example 5 Fluorinated acrylate copolymer 6 3 10 6 8 Fullerene C60 powder 2 7 1 5 4 ...

Embodiment 2

[0043] According to the data of Example 2 shown in Table 1, weigh and take fluorine-containing acrylate monomers, maleic anhydride monomers, and surfactants in a certain proportion, and prepare them with water to form an emulsified solution with a concentration of 1:10 to 1:30 , add a high-efficiency surfactant under high-speed stirring to form a relatively stable monomer emulsion, then raise the temperature to 65°C, reduce the stirring speed and add azotized fullerene powder at the same time to initiate anionic emulsion polymerization of the monomer, and the reaction After the end, the moisture contained therein is removed by repeated rotary evaporation treatment, so as to obtain organic-inorganic hybrid polymer composite microspheres.

Embodiment 3

[0045] According to the data of Example 1 shown in Table 1, weigh and take fluorine-containing acrylate monomer, maleic anhydride monomer, and surfactant in a certain proportion, and prepare an emulsified solution with a concentration of 1:10 to 1:30 with water , add a high-efficiency surfactant under high-speed stirring to form a relatively stable monomer emulsion, then raise the temperature to 65°C, reduce the stirring speed and add azotized fullerene powder at the same time to initiate anionic emulsion polymerization of the monomer, and the reaction After the end, the moisture contained therein is removed by repeated rotary evaporation treatment, so as to obtain organic-inorganic hybrid polymer composite microspheres.

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Abstract

The invention discloses a solvent-resistant and low temperature impact-resistant polycarbonate alloy material and a preparation method thereof. The alloy material concretely comprises, by weight, 30-70 parts of PC resin, 8-20 parts of PET resin, 5-20 parts of polymer composite microspheres, 1-3 parts of an antioxidant and 0.5-2 parts of a lubricant, and the polymer composite microspheres are prepared from, by weight, 3-10 parts of a fluorine-containing acrylate / maleic anhydride block copolymer, 1-7 parts of functionalized fullerene powder and 1-3 parts of a surfactant. Functionalized polymer composite microsphere master batches are prepared by using an efficient emulsion polymerization process, the organic-inorganic hybrid polymer composite microspheres take fullerene C60 as a core and thefluorine-containing acrylate / maleic anhydride copolymer as a long-chain branch, the unique core-shell structure can improve the stability of the PC / PBT alloy material in various chemicals, and an acrylate elastomer layer has good interfacial compatibilizing and toughening effects as a microsphere shell.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a solvent-resistant, low-temperature impact-resistant polycarbonate alloy material and a preparation method thereof. Background technique [0002] Polycarbonate (referred to as PC resin) is a linear thermoplastic polymer material containing carbonate groups on the main molecular chain. According to its ester group structure, it is divided into three types: aliphatic, aliphatic-aromatic, and aromatic. The rigid benzene ring group contained can obviously improve the performance defects of low mechanical properties caused by the flexible ether-oxygen bond, so it has the best use value, and among them, the application field of bisphenol A polycarbonate resin is The most extensive and in-depth. Although bisphenol A PC resin has excellent properties such as high transparency, high dimensional stability, high rigidity and high impact resistance, it is still diffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L53/00C08K9/04C08K3/04
CPCC08L69/00C08L2205/03C08L2205/08C08L2205/16C08L67/02C08L53/00C08K9/04C08K3/045
Inventor 徐凯华
Owner 上海华合复合材料有限公司
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