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Thermoplastic resin composition and molded product manufactured therefrom

A technology of thermoplastic resin and composition, which is applied in the field of thermoplastic resin composition, and can solve the problems of reducing antibacterial performance and the like

Active Publication Date: 2020-03-24
LOTTE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, typical antimicrobial agents such as zinc oxide have the disadvantage that they exhibit reduced antimicrobial performance under acidic conditions and are therefore usable only under limited conditions

Method used

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  • Thermoplastic resin composition and molded product manufactured therefrom
  • Thermoplastic resin composition and molded product manufactured therefrom
  • Thermoplastic resin composition and molded product manufactured therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to Embodiment 2 and comparative example 1 to comparative example 3

[0098] The above-mentioned components were mixed in the amounts listed in Table 1, followed by extrusion at 230° C., thereby preparing a thermoplastic resin composition in the form of pellets. Here, extrusion was performed using a twin-screw extruder (L / D: 36, Φ: 45 mm). The prepared pellets were dried at 80°C for 2 hours or more, and then injection-molded using a 6-ounce injection machine (molding temperature: 230°C, mold temperature: 60°C), thereby preparing samples. The following properties of the prepared samples were evaluated. The results are shown in Table 1.

[0099] performance evaluation

[0100] (1) Antibacterial activity: According to JIS Z 2801, a 5 cm × 5 cm sample was inoculated with Staphylococcus aureus and Escherichia coli respectively, and after cultivating for 24 hours under the conditions of 35° C. and 90% RH, on the 5 cm × 5 cm sample Antimicrobial activity was measured.

[0101] (2) Acid resistance: According to JIS Z 2801, a 5cm×5cm sample was imm...

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Abstract

A thermoplastic resin composition of the present invention is characterized by comprising: a thermoplastic resin containing a rubber-modified vinyl-based graft copolymer and an aromatic vinyl-based copolymer resin; zinc oxide; zinc phosphate; a surface-coated zinc oxide, of which a portion or the entirety of a surface is coated with zinc phosphate. The thermoplastic resin composition has excellentacid resistance and antibacterial properties.

Description

technical field [0001] The present invention relates to a thermoplastic resin composition and molded articles produced using the same. More particularly, the present invention relates to a thermoplastic resin composition having good properties in terms of acid resistance, antibacterial properties, etc., and molded articles produced using the same. Background technique [0002] Rubber-modified aromatic vinyl copolymer resins such as acrylonitrile-butadiene-styrene copolymer resins (ABS resins) have good properties in terms of mechanical properties, processability and appearance characteristics, and thus are widely used as / Interior / exterior materials for electronics, interior / exterior materials for automobiles, and exterior materials for buildings. [0003] In addition, thermoplastic resin compositions including such rubber-modified aromatic vinyl copolymer resins and molded articles thereof are required to have antimicrobial properties when used in applications in which di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04
CPCC08L25/12C08K2003/2296C08K2003/321C08K2201/006C08L55/02C08K3/22C08K9/02C08K3/32C08L51/04C08K2201/003C08L2203/30C08L2207/04
Inventor 梁天锡裵胜勇金延庆金柱圣朴康烈
Owner LOTTE ADVANCED MATERIALS CO LTD