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Thermoplastic resin composition, process for producing the same and molding

A thermoplastic resin and resin composition technology, applied in the field of thermoplastic resin composition, its manufacture, and molded products, can solve the problem of property degradation, achieve excellent balance of opposite properties such as impact resistance and heat resistance, and absorb impact energy Excellent performance and vibration energy absorption performance, sufficient heat resistance effect

Active Publication Date: 2014-09-03
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in the method described in Patent Document 4, there is a problem that the basic phase structure is a simple sea-island structure, and although the impact resistance is improved, other characteristics are lowered.

Method used

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  • Thermoplastic resin composition, process for producing the same and molding
  • Thermoplastic resin composition, process for producing the same and molding
  • Thermoplastic resin composition, process for producing the same and molding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、2

[0223] Use PA6 resin as thermoplastic resin (A), use GMA modified PE copolymer as resin (B) with reactive functional groups, mix according to the mixing composition shown in Table 1, remove volatile components by vacuum pump and blow in nitrogen flow , while using a screw diameter of 37mm and a screw rod of 2 threads with L / D0=100 co-rotating fully intermeshing twin-screw extruder (manufactured by Toshiba Machine Co., Ltd., TEM-37BS-26 / 2V), in Melt-kneading was carried out at a cylinder temperature of 260° C. at the screw speed and extrusion rate shown in Table 1, and a rope-shaped molten resin was discharged from a discharge port (L / D=100). At this time, the coloring agent was added simultaneously with the raw materials, and the time when the coloring of the extruded product reached the maximum was measured as the residence time. The residence time is shown in Table 1. In addition, the screw structure: as A, there are seven kneading zones starting from the positions of L / D0=2...

Embodiment 3

[0229] From a co-rotating fully intermeshing twin-screw extruder (manufactured by Toshiba Machine Co., Ltd., TEM-37BS-26 / 2V) with a screw diameter of 37 mm and a screw diameter of 2 screws with L / D0=100. The thermoplastic resin composition was obtained by melt-kneading in the same manner as in Example 1 except that the sampling valve of L / D0=72 discharged the thermoplastic resin composition. The kneading conditions are shown in Table 1, and the evaluation results of the obtained thermoplastic resin compositions are shown in Tables 2 and 3. In addition, if calculated by (total length of kneading zone)÷(total length of screw)×100

[0230] From the ratio (%) of the total length of the above-mentioned kneading zones to the total length of the screw, the ratio (%) of the total length of the kneading zones is 15%.

Embodiment 4、5

[0242] Use PA6 resin as thermoplastic resin (A1), use GMA modified PE copolymer as resin (B) with reactive functional groups, mix according to the mixing composition shown in Table 4, remove volatile components by vacuum pump and blow in nitrogen flow, using a screw diameter of 37mm and a co-rotating fully intermeshing twin-screw extruder (manufactured by Toshiba Machine Co., Ltd., TEM-37BS-26 / 2V) with L / D0=100 of 2 screws with 2 threads. , Melt-kneading was carried out under the cylinder temperature of 260° C., the screw speed shown in Table 4, and the extrusion rate conditions, and the rope-shaped molten resin was discharged from the discharge port (L / D=100). At this time, the coloring agent was added together with the raw materials, and the time when the coloring of the extruded product reached the maximum was measured as the residence time. The residence time is shown in Table 4. In addition, the screw structure: as A, there are seven kneading zones starting from the posit...

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Abstract

The present invention relates to a thermoplastic resin composition, which is a thermoplastic resin composition comprising a thermoplastic resin (A) and a resin (B) having a reactive functional group, the composition of which is observed by transmission electron beam tomography In the form, a thermoplastic resin composition having a specific structure and containing a polyamide resin has a relaxation time T1C of the carbon core measured by solid NMR within a specific range, and the composition has an excellent balance of opposite properties such as impact resistance and heat resistance At the same time, it remarkably exhibits specific viscoelastic properties that have never been found in existing polymer materials, and is remarkably excellent in impact energy absorption performance and vibration energy absorption performance during high-speed deformation.

Description

[0001] The invention of this application is a divisional application of the application No. 200780018566.5, the title of the invention is thermoplastic resin composition, its manufacturing method and molded products, and the filing date is March 22, 2007 technical field [0002] The present invention relates to a thermoplastic resin composition. In the thermoplastic resin composition containing a resin having a reactive functional group, a three-dimensional connection structure including a continuous phase component is formed in a dispersed phase, and then the connection structure is controlled at the cross section of the dispersed phase. In addition, in the thermoplastic resin composition containing the polyamide resin, by controlling the relaxation time of the polyamide resin, the thermoplastic resin composition can maintain impact resistance and heat resistance, etc. While the balance of opposite characteristics is excellent, it significantly shows specific viscoelastic prop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L101/00B29C48/08B29C48/395
CPCC08L101/00C08L77/02C08J3/203B29C47/38C08L51/06C08L77/00B29C47/0021B29C47/402C08L101/02B29C48/08B29C48/395B29C48/402C08L2666/24C08L101/12C08J3/20
Inventor 小林定之佐藤大辅秋田大阵内浩司井上隆
Owner TORAY IND INC
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