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A kind of EPDM/polypropylene composite material and its preparation

A technology of EPDM rubber and composite materials, which is applied in the treatment of fibrous fillers and dyed organic silicon compounds, and can solve problems such as cumbersome formulas and processes, and environmental pollution.

Active Publication Date: 2018-07-17
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the formulation and process of these thermoplastic elastomers are relatively cumbersome, and they are easy to cause pollution to the environment, and the mechanical properties generally need to be further improved. For example, the tensile strength does not exceed 15MPa.

Method used

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  • A kind of EPDM/polypropylene composite material and its preparation
  • A kind of EPDM/polypropylene composite material and its preparation
  • A kind of EPDM/polypropylene composite material and its preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] The preparation of the EPDM rubber / polypropylene composite material in the prior art of embodiment 1

[0104] The composite material of this embodiment can be prepared by conventional methods in the art, specifically as follows:

[0105]Mix EPDM rubber, polypropylene and antioxidant for 5 minutes on the internal mixer at 170°C and 80r / min, add dicumyl peroxide for dynamic vulcanization for 3 minutes, granulate the mixture, and vulcanize on a plate at 180°C for 40 minutes , that is, a highly reinforced EPDM / PP composite material.

Embodiment 2

[0106] Embodiment 2 only contains the preparation of the composite material of modified montmorillonite

[0107] 2.1 Preparation of modified montmorillonite:

[0108] According to the mass ratio of montmorillonite: deionized water: absolute ethanol is 1:4:3, mix montmorillonite, deionized water, and absolute ethanol evenly, under magnetic stirring, add 0.1mol / L hydrochloric acid to dissolve The pH of the mixture was adjusted to 3.5;

[0109] According to the mass ratio of montmorillonite: vinyltriethoxysilane of 10:1, add vinyltriethoxysilane and modify at 60°C for 4h;

[0110] According to the mass ratio of montmorillonite: hexadecyltrimethylammonium bromide is 5:2, add hexadecyltrimethylammonium bromide, stir at 60°C for 45h, filter with suction, wash 4 times, and dry , and finally get modified montmorillonite.

[0111] 2.2 Preparation of EPDM / PP rubber-plastic composite material: Mix EPDM rubber, polypropylene, and antioxidant for 5 minutes on an internal mixer at 170°C ...

Embodiment 3

[0112] Embodiment 3 only contains the preparation of the composite material of modified graphene oxide

[0113] 3.1 Preparation of modified graphene oxide: According to the mass ratio of graphene oxide: deionized water: absolute ethanol is 1:100:100, add graphene oxide, deionized water, absolute ethanol and mix evenly, under magnetic stirring , adding hexadecylamine at a mass ratio of graphene oxide: hexadecylamine of 1:1, reflux reaction at 100°C for 20 hours, suction filtration, four washings, and drying to finally obtain modified graphene oxide.

[0114] 3.2 Preparation of EPDM / PP rubber-plastic composite material: Mix EPDM rubber, polypropylene, and antioxidant for 5 minutes on an internal mixer at 170°C and 80 r / min, add paraffin oil, and modified graphite Mix ethylene for 7 minutes, add dicumyl peroxide and dynamically vulcanize for 3 minutes. After the mixture is granulated, vulcanize on a plate at 170°C for 40 minutes to obtain a high-reinforcement EPDM / PP composite ma...

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Abstract

The invention provides an ethylene propylene diene monomer rubber / polypropylene composite material and a preparation thereof. Particularly, the composite material is prepared from the following components in parts by weight: 30-70 parts of ethylene propylene diene monomer rubber, 70-30 parts of polypropylene, 1-10 parts of terminal-alkenyl-modified montmorillonite, 0.1-1 part of modified graphene oxide, 1-6 parts of vulcanizing agent and 1-10 parts of assistant. The high-reinforcing ethylene propylene diene monomer rubber / polypropylene rubber-plastic composite material has excellent tensile strength and other mechanical properties, and is especially suitable for special demands in the fields of automobiles, construction and the like.

Description

technical field [0001] The invention belongs to the preparation of rubber-plastic composite materials, and relates to a preparation method of high-reinforcement EPDM / polypropylene rubber-plastic composite materials. Background technique [0002] Thermoplastic elastomer material (TPE) is a material developed in recent years, and its structural characteristics are composed of rubber and plastic. The use of EPDM rubber and polypropylene to prepare rubber-plastic composite materials can not only solve the shortcomings of polypropylene after molding, such as insufficient toughness, low notched impact strength, low thermal deformation temperature, and poor creep resistance, but also solve the problems of EPDM. The disadvantage of low tear strength of rubber. EPDM / PP rubber-plastic composites can be used as composite materials with excellent performance, and have broad application prospects in the fields of automobiles and construction. [0003] Among the existing invention paten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L23/12C08K3/34C08K3/04C08K5/14C09C1/42C09C3/12
CPCC08L23/16C08L23/12C08K5/14C08K5/1345C08K9/06C08K9/04C08K3/346C08K3/04
Inventor 宋英泽江南虞锦洪戴丹白华朱金凤吕继磊
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI