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Thermoplastic resin composition, and molded product using same

A thermoplastic resin and composition technology, applied in the field of thermoplastic resin composition and molded products using the same, can solve the problems of environmental pollution, no scratch resistance, limited coloring performance, etc.

Active Publication Date: 2014-07-30
LOTTE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, this process requires additional post-processing and is thus accompanied by problems such as increased complexity, degradation of productivity such as percentage defects, and environmental pollution.
[0008] ASA resins with excellent weather resistance are general-purpose resins widely used in building materials, vehicle exterior materials, etc., but do not have excellent scratch resistance properties and also have opaque properties, thus having limited coloring properties
[0009] On the other hand, ABS / PMMA resin has excellent transparency, so it can be applied to unpainted electrical housings due to the color expression characteristics of fast coloring and high gloss and scratch resistance properties brought about by the use of PMMA, but Has the disadvantage of degraded weather resistance

Method used

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  • Thermoplastic resin composition, and molded product using same
  • Thermoplastic resin composition, and molded product using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 6 and comparative example 1 to 7

[0094] Each thermoplastic resin composition according to Examples 1 to 6 and Comparative Examples 1 to 7 was prepared to have the composition in Table 1 below by using the above-mentioned components.

[0095] Other additives were added to each thermoplastic resin composition in Table 1 below, and the mixture was separately extruded / processed to obtain a pellet type thermoplastic resin. Extrusion was performed by using a twin-screw extruder having L / D=29 and a diameter of 45 mm and setting a Barell temperature of 230°C. The prepared pellets were dried at 80°C for 2 hours and then prepared for the measurement of scratch resistance, optical properties and Weather resistance 9 cm x 5 cm x 0.2 cm size samples for measuring properties.

experiment example 1

[0096] Experimental Example 1: Mechanical Properties

[0097] The properties of the prepared samples were measured by the following methods, and the results are provided in Table 2 below.

[0098] (1) Transparency and haze: measured according to ASTM D1003 standard

[0099] (2) BSP (Ball Scratch Profile) Width: under loads of 300 g, 500 g and 1000 g, respectively, using a tungsten carbide tipped pen with a domed tip of 0.7 mm diameter and at a speed of 75 mm / min on the sample Scratch, then use surface profiling to check roughness and measure scratch width according to the first woolen method.

[0100] (3) Pencil hardness: Measure the hardness when a load of 500 g is applied to the pencil and pushed 5 times at a speed of 10 mm / s without scratches (pencil and pencil hardness according to JIS K5401).

[0101] (4) Weather resistance: measured according to SAE J1960 (3,000 hours, ΔE)

[0102] (Table 1)

[0103]

[0104] (Table 2)

[0105]

[0106] The samples according...

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Abstract

One embodiment of the present invention provides a thermoplastic resin composition comprising: (A) a grafted acrylic copolymer; (B) an aromatic vinyl-cyanovinyl copolymer; and (C) a polyalkyl (meth)acrylate resin. The aromatic vinyl-cyanovinyl copolymer (B) can comprise 5-25 wt% of a monomer derived from a cyanovinyl compound.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2011-0123722 filed with the Korean Intellectual Property Office on Nov. 24, 2011, the entire disclosure of which is hereby incorporated by reference. technical field [0003] A thermoplastic resin composition and a molded article using the thermoplastic resin composition are disclosed. Background technique [0004] Acrylonitrile-butadiene-styrene (ABS) resins have excellent impact strength and processability, as well as satisfactory mechanical strength, heat distortion temperature, gloss, etc. and are therefore widely used in electrical / electronic parts, office machines etc. [0005] However, when acrylonitrile-butadiene-styrene (ABS) resin is applied to casings of high-quality electrical appliances such as LCDs, PDP TVs, stereo systems, etc., scratches are easily generated during the injection molding process or when using the product,...

Claims

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Application Information

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IPC IPC(8): C08L51/06C08L25/12C08L33/12C08J5/00
CPCC08L25/12C08L51/04C08L33/06C08L51/00C08J5/00C08L33/12C08L51/06
Inventor 金仁哲洪彰敏朴智恩郑择雄
Owner LOTTE ADVANCED MATERIALS CO LTD
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