Reactive-extrusion addition ethylene-propylene diene monomer rubber sulfonate and preparation method thereof

A technology of EPDM rubber and EPDM rubber, which is applied in the chemical industry, can solve the problems of low mechanical strength, unsatisfactory performance, poor processing performance, etc., and meet the diversified needs of the market and achieve excellent mechanical and mechanical properties. Effect

Active Publication Date: 2012-06-20
JIANGSU HENGFENG CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing EPDM rubber has low mechanical strength, poor processing performance, and poor adhesion to metals. It is used for cable insulation and sheathing, and its performance is not ideal.

Method used

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  • Reactive-extrusion addition ethylene-propylene diene monomer rubber sulfonate and preparation method thereof
  • Reactive-extrusion addition ethylene-propylene diene monomer rubber sulfonate and preparation method thereof
  • Reactive-extrusion addition ethylene-propylene diene monomer rubber sulfonate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Recipe: Table 2

[0020] Formula material

Dosage (parts by weight)

EPDM

100

Initiator (DCP)

0.2～0.3

sodium bisulfite

4～5

polyethylene wax

1～1.4

Antioxidant 1076

0.6

[0021] Implementation process: Stir EPDM rubber, initiator, nucleophile, processing aid and antioxidant in a high-speed mixer for 7 to 8 minutes, then add it to a twin-screw extruder with a screw speed of 100 rpm , the twin-screw extruder temperature settings are shown in Table 3:

[0022] table 3

[0023]

Embodiment 2

[0025] Recipe: Table 4

[0026] Formula material

Dosage (parts by weight)

EPDM

110

Initiator (DCP)

0.4

sodium bisulfite

6

polyethylene wax

0.6

Antioxidant 1076

0.5

[0027] Implementation process: Stir EPDM rubber, initiator, nucleophile, processing aid and antioxidant in a high-speed mixer for 7 to 8 minutes, then add it to a twin-screw extruder with a screw speed of 100 rpm , the twin-screw extruder temperature settings are shown in Table 5:

[0028] table 5

[0029]

[0030] Table 6 is a performance comparison table of the reaction extrusion addition EPDM rubber sulfonated product of Example 1 of the present invention and ordinary EPDM rubber. From the comparative data in the table, it can be seen that the tensile strength and elongation at break of the sulfonated product of the present invention The rate and adhesion properties are significantly higher than the existing ordinary EPDM ...

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Abstract

The invention discloses a reactive-extrusion addition ethylene-propylene diene monomer rubber sulfonate and a preparation method thereof. The sulfonate is composed of the following components, by weight parts, 90 to 110 parts of ethylene-propylene diene copolymer, 0.1 to 0.5 part of initiator, 3 to 6 parts of nucleophile, 0.5 to 2 parts of processing auxiliaries and 0.2 to 1 part of oxidation inhibitor. The reactive-extrusion addition ethylene-propylene diene monomer rubber sulfonate has excellent mechanical performance and binding force with metal and can be used for preparing high-quality insulation jackets for cables.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a reactive extrusion addition EPDM rubber sulfonate and a preparation method thereof. Background technique [0002] Ethylene-propylene-diene rubber (EPDM) is a terpolymer of ethylene, propylene and non-conjugated dienes. The most important characteristic of EPDM rubber is its superior resistance to oxidation, ozone and erosion. Since EPDM belongs to the polyolefin family, it has excellent vulcanization characteristics. Among all rubbers, EPDM has the lowest specific gravity, and it can absorb large amounts of fillers and oils with little effect on properties, thus making it possible to make low-cost rubber compounds. However, the existing EPDM rubber has low mechanical strength, poor processability, and poor adhesion to metals. It is used for cable insulation and sheathing, and its performance is not ideal. Contents of the invention [0003] The object of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/06C08K3/30C08K5/134B29C47/92B29C48/92
CPCB29C48/40
Inventor 韩明伟张建康邰锡峰蒋周山储旭超
Owner JIANGSU HENGFENG CABLE
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