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Thermoplastic resin composition and shaped body made from the composition

A thermoplastic resin and composition technology, which can be applied in the field of plastic resin composition and containing, can solve the problems of reduction, poor creep resistance, insufficient resin rigidity and impact resistance, etc.

Active Publication Date: 2007-04-04
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, although any of these conventional methods is a method for improving some properties of polypropylene-based resins, the balance between rigidity and impact resistance of the resin is not sufficient, and if remelting for recycling, it is still There are disadvantages such as a decrease in the balance of rigidity and impact resistance, and poor creep resistance

Method used

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  • Thermoplastic resin composition and shaped body made from the composition
  • Thermoplastic resin composition and shaped body made from the composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0075] Hereinafter, although an Example and a comparative example are shown and this invention is concretely demonstrated, this invention is not limited only to an Example.

[0076] In addition, the test methods and materials used in the examples are as follows.

[0077] 1. Test method

[0078] (1) Tensile modulus of elasticity: measured in accordance with JIS K-7162. In addition, the test piece was made into a dumbbell-shaped (Danbell) test piece using Fanatsuku Autotoshito Model 75.

[0079] (2) Maximum point stress: measured in accordance with JIS K-7162.

[0080] (3) Creep resistance: The test piece is made on the side of a rectangle with a length of 100 mm and a width of 10 mm, and two U-shaped notches of 1.5 mm are made on both sides of the central part. A load of 10 kg was applied to one end, and the time until fracture was obtained.

[0081](4) Drop weight test at 0°C: at 0°C, a 5.3R hammer was dropped on the test piece by a Dupon impact testing machine, and the he...

Embodiment 1～8、 comparative example 1～7

[0100] The components shown in Table 1 and Table 2 were melt-kneaded at the ratios shown in Table 1 and Table 2 using an extruder (manufactured by Plastic Engineering Research Institute Co., Ltd., model "BT-40") to obtain a recycled thermoplastic resin composition. thing. The evaluation results of the obtained compositions are shown in Tables 1 and 2.

[0101] Example

comparative example

1

2

3

4

5

1

2

3

composition

PP-1 (PP not used)

weight%

50

50

50

50

50

-

-

-

PP-2 (PP not used)

weight%

-

-

-

-

-

-

50

100

recycled PP

weight%

50

50

50

50

50

100

50

-

LDPE

parts by weight

5

5

15

-

-

-

-

-

Crystal nucleating agent

ゲルオ-ルMD

...

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Abstract

The invention provides a regenerative thermoplastic resin composition which has an excellent balance between rigidity and strike-proof despite exiting a mass of regenerative resin and has the same creep-resistant performance to unused polyolefin resin, and a molding body as the filling member of rainwater depositing and / or infiltration establishment. The regenerative thermoplastic resin composition is characterized in that a regenerative polyolefins resin composition contains 10 to 90 wt. % high molecular weight polyolefins resin which average molecular weight is no less than 500,000 and 90 to 10 wt. % regenerative polyolefins resin, based on 100 parts by weight of the regenerative polyolefins resin, a reactive resin component containing 1 to 30 parts low density polythene and / or organic peroxide, free radicals capture agent and methylether acrylate monomer.

Description

technical field [0001] The present invention relates to a recycled thermoplastic resin composition and a molded article comprising the composition, in particular, to a recycled thermoplastic resin composition having mechanical properties equal to or higher than that of a conventionally unused polyolefin resin and having a long lifespan. (Creep resistance) Recycled thermoplastic resin composition of recycled polyolefin resin and molded body for filling material of facilities including its storage and / or penetration of rainwater and the like. Background technique [0002] Polyolefins, especially polypropylene-based resins are generally inexpensive, and are widely used as industrial materials such as automobile parts, electrical and electronic parts, and various Packaging material used. Furthermore, particularly in the field of packaging, recyclability has been demanded in recent years in order to cope with environmental problems. [0003] However, it is difficult to reuse ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00
Inventor 宇田隆和田周也中垣将
Owner SEKISUI CHEM CO LTD
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