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Thermoplastic resin composition and molded product using the same

A technology of thermoplastic resins and compositions, applied in the field of thermoplastic resin compositions and molded products using them, capable of solving problems such as fluidity limitations, increased product ratios, and limited formability

Inactive Publication Date: 2012-12-26
CHEIL IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, by making the blend rich in inorganic materials, formability is limited, resulting in overloading of the extruder, and the proportion of defective products increases, so products for improved flowability are required
However, the improvement of fluidity has a limit if the mechanical and thermal characteristics deteriorate while increasing the fluidity

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 6 and comparative example 1 to 6

[0107] Various thermoplastic resin compositions according to Examples 1 to 6 and Comparative Examples 1 to 6 were prepared using the above-mentioned components according to the compositions shown in Table 1 below.

[0108] The components were mixed according to the composition shown in Table 1 below, and extruded at 250° C. through a twin-screw extruder having L / D = 29 and a diameter of 45 mm to provide pellets.

experiment example 1

[0109] Experimental Example 1: Measurement of Mechanical Properties

[0110] The pellets obtained from Examples 1 to 6 and Comparative Examples 1 to 5 were dried at 110° C. for greater than or equal to 3 hours and injected into 10 oz (oz. ) in the injection mold to provide physical property samples. Physical properties of the prepared samples were measured by the following methods, and the results are shown in Table 1 below.

[0111] (1) Tensile strength (TS): Measured according to ASTM D638 (measurement condition: tensile speed 5 mm / min).

[0112] (2) IZOD impact strength: measured according to ASTM D256 (sample thickness: 1 / 8")

[0113] The temperature and humidity were changed according to the following conditions (USCAR3 conditions) and set as 1 cycle. The tensile strength and IZOD impact strength of the initial sample and the sample after 40 cycles were measured, and the results are shown in Table 1 below.

[0114]Repeat 40 cycles with 1 cycle condition according to...

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Abstract

Disclosed is a thermoplastic resin composition that includes: a polyester resin (A); an epoxy-modified glass fiber (C); and a hydrolysis resistant additive (D) comprising an alicyclic epoxy compound, a carbodiimide compound, or a combination thereof.

Description

[0001] References to related applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2011-0061088 filed with the Korean Intellectual Property Office on Jun. 23, 2011, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention discloses a thermoplastic resin composition and molded products using the same. Background technique [0004] Currently commercially available blends of polyester resin / ASA (acrylate-styrene-acrylonitrile) resin, ABS (acrylonitrile-butadiene-styrene) resin / glass fiber, etc. A molded product of complex structure, and it is particularly used for automobile exterior materials. However, by making the blend rich in inorganic materials, the formability is limited, resulting in overloading of the extruder, and the proportion of defective products increases, so products for improving flowability are required. However, improvement of flowability has a limit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/02C08L51/00C08L25/12C08K13/06C08K9/04C08K7/14C08K5/1515C08K5/29
CPCC08L51/04C08L51/06C08K5/29C08K9/04C08K5/1515C08L67/02C08L67/00C08K7/14
Inventor 李岏羲河斗汉许晋荣
Owner CHEIL IND INC