Ethylene propylene diene monomer rubber composite material and preparation method thereof

A technology for EPDM rubber and composite materials, which is applied in the fields of EPDM rubber composite materials and their preparation, carbon fiber reinforced EPDM rubber composite materials and their preparation fields, can solve problems such as use effects, and achieve improvement Interface bonding, simple preparation process control, and improved physical and mechanical strength

Active Publication Date: 2015-12-30
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when reinforced with carbon black, etc., the obtained materials are not transparent, which affects their use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1, adding stearic acid into ethanol to prepare a treatment solution with a mass concentration of 1.0%, in parts by weight, immersing 25 parts of polyacrylonitrile-based carbon fiber fabrics with a pore spacing of 0.1 mm into 25 parts of the treatment solution, soaking for 12 hours, and then dried at 80°C for 4 hours;

[0026] Step 2. Put 50 parts of EPDM rubber CP80 into a double-roller mill in parts by weight, and carry out kneading at 110°C for 15 minutes; place the kneaded material in a mold, and At a pressure of 100kg.cm -2 Calendering is carried out at a temperature of 120°C to prepare an EPDM sheet with a thickness of 0.5 mm, and then the dry carbon fiber treated with the treatment liquid is sandwiched between the pressed two-layer EPDM sheet, Put it in the mold again at a pressure of 100kg.cm -2 Calendering is carried out under the condition of a temperature of 120° C. to prepare a sheet with a thickness of 1.0 mm;

[0027] Step 3: After cooling the sheet...

Embodiment 2

[0029] Step 1. Add silane coupling agent KH-540 into ethanol to prepare a treatment solution with a mass concentration of 0.8%. In parts by weight, 30 parts of phenolic-based carbon fiber fabrics with a pore spacing of 0.4 mm are immersed in 40 parts of the treatment solution. Soak for 15 hours, then dry at 80°C for 4 hours;

[0030] Step 2. Put 50 parts of EPDM J4045 into a double-roll mill in parts by weight, and carry out the milling at 120°C, add 3 parts of 1,6-hexanediol diacrylate, and mix 20 minutes; place the kneaded material in the mold, and -2 Calendering is carried out at a temperature of 120°C to prepare a EPDM sheet with a thickness of 1 mm, and then the dry carbon fiber treated with the treatment liquid is sandwiched between the pressed two-layer EPDM sheet, Put it in the mold again at a pressure of 140kg.cm -2 Calendering is carried out under the condition of a temperature of 120° C., and a sheet with a thickness of 2.0 mm is prepared;

[0031] Step 3. After ...

Embodiment 3

[0033] Step 1. Add silane coupling agent KH-560 into epichlorohydrin to prepare a treatment solution with a mass concentration of 0.9%. In parts by weight, 40 parts of viscose-based carbon fiber fabrics with a pore spacing of 0.2 mm are immersed in 50 parts Soak in the treatment solution for 15 hours, then dry at 70°C for 8 hours;

[0034] Step 2: Put 50 parts of EPDM rubber 1705 into a double-roll mill in parts by weight, and carry out kneading at 110°C for 16 minutes; place the kneaded material in a mold, and At a pressure of 150kg.cm -2 Calendering is carried out at a temperature of 110°C to prepare a EPDM sheet with a thickness of 0.5 mm, and then the dry carbon fiber treated with the treatment liquid is sandwiched between the pressed two-layer EPDM sheet, Put it in the mold again at a pressure of 150kg.cm-2 Calendering is carried out under the condition of a temperature of 110° C., and a sheet having a thickness of 1.0 mm is prepared;

[0035] Step 3. After the sheet is...

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Abstract

The invention discloses an ethylene propylene diene monomer rubber composite material and a preparation method thereof. The preparation method is characterized by comprising the following steps: pretreating fabric-type carbon fibers by using a solubilizer, compounding ethylene propylene diene monomer rubber and a radiation sensitizer, putting in a mold, calendering into sheets, sandwiching the pretreated fabric-type carbon fibers between the two ethylene propylene diene monomer rubber sheets, putting in the mold, and calendering into a sheet; after the sheet is cooled to room temperature, carrying out plastic packaging, putting in a gamma-ray radiation field or electron-beam accelerator, and carrying out radiation crosslinking while keeping the total absorbed dose at 50-200 kGy; and after finishing radiation, removing the plastic package, and cutting off the edge, thereby obtaining the semitransparent ethylene propylene diene monomer rubber composite material. The composite material has excellent mechanical properties. By using the fabric-type carbon fibers as the reinforcing agent, the prepared ethylene propylene diene monomer rubber composite material is semitransparent. Meanwhile, the preparation method has the advantages of simple preparation process control and favorable repetitiveness.

Description

technical field [0001] The invention relates to an EPDM composite material and a preparation method thereof, in particular to a carbon fiber reinforced EPDM composite material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Due to the regular arrangement of the secondary chain segments similar to crystallization (or quasi-crystallization), the strength of rubber shows an upward trend in the early stage of the service cycle, that is, self-reinforcement. EPDM rubber is non-crystalline rubber and does not have self-reinforcing properties. It needs to be reinforced with carbon black, white carbon black, calcium carbonate and other fillers before it can have better tensile strength. Among them, the first two are the most commonly used, and nano-calcium carbonate is often synergistically reinforced with white carbon black because the reinforcing effect is not obvious when used alone [Zou Derong. Nano-CaCO 3 St...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K9/04C08K9/06C08K7/06C08K5/103C08K5/3492B29C43/26
CPCB29C43/265C08K5/103C08K5/34924C08K7/06C08K9/04C08K9/06C08L2312/06C08L23/16
Inventor 宋宏涛曾凡松黄玮傅依备李宗军安友
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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