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Thermoplastic resin composition, process for producing the same and molding

A thermoplastic resin and resin composition technology, applied in the fields of thermoplastic resin composition, its manufacture and molded products, can solve problems such as characteristic degradation, achieve an excellent balance of opposite characteristics such as impact resistance and heat resistance, and have sufficient heat resistance It has a significant effect on stability, impact energy absorption performance and vibration energy absorption performance.

Active Publication Date: 2009-10-14
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

[0224] 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

[0230] 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. Also, when the ratio (%) of the total length of the kneading zones to the total screw length is calculated by (total length of the kneading zones)÷(total length of the screw)×100, 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 positi...

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Abstract

This invention is a thermoplastic resin composition comprising a thermoplastic resin (A) and a reactive functional group-containing resin (B), which has a specific structure in the morphology of the resin composition observed by transmission electron microscopy tomography, and the relaxation time T1C of each carbon nucleus by the solid NMR measurement of the thermoplastic resin composition containing a polyamide resin is kept in a specific range. The composition is excellent in the balance between contradictory properties such as impact resistance and heat resistance, remarkably exhibits a peculiar viscoelastic behavior not observed in the conventional polymeric materials, and is remarkably excellent in impact energy absorbing performance and vibration energy absorbing performance at the time of high-speed deformation.

Description

technical field [0001] 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 properties that have never been found in existing polymer materials, and the impact energy absorption performance and vibration energy absorption performance during high-speed deformation are significantly excellent; it also relates to The manufacturing method...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08J3/20C08L77/00
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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