A kind of polymer-based conductive elastomer and preparation method thereof
A technology of polymers and elastomers, applied in the field of designing conductive polymer composite materials, to achieve the effects of improved tensile strength, good elasticity and resilience, and improved elasticity and resilience.
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Embodiment 1
[0032] The vulcanizing agent uses 3 phr dicumyl peroxide (DCP), blended with ethylene octene copolymer (POE) for 1 min, statically vulcanized at 170°C and 10 MPa for 15 min, and cooled for 1 min. After being pulverized by a high-speed pulverizer with a rotating speed of 25000 rpm for 3 minutes, cross-linked particles with a particle size of 40-60 mesh (about 250-420 microns) are sieved with a sample sieve.
[0033] Under the condition of 150℃ and 50rpm, the POE and mass fraction are respectively 0, 2.5, 5, 7.5, 10, 12.5, 15, 17.5 in a torque rheometer (XSS-300, produced by Shanghai Light Machinery Mould Factory) The multi-walled carbon nanotubes (MWCNT) were blended for 5 minutes to obtain a masterbatch; then the crosslinked particles with a content of 75 wt.% were added, and the blending was continued for 5 minutes. After blending, hot press at 150° C. and 10 MPa for 5 minutes, and after cooling to prepare cross-linked particles / POE / MWCNT-A conductive elastomer.
Embodiment 2
[0035] The vulcanizing agent uses 3 phr dicumyl peroxide (DCP), blended with ethylene octene copolymer (POE) for 1 min, statically vulcanized at 170°C and 10 MPa for 15 min, and cooled for 1 min. After being pulverized by a high-speed pulverizer with a rotating speed of 25000 rpm for 3 minutes, cross-linked particles with a particle size of 40-60 mesh (about 250-420 microns) are sieved with a sample sieve.
[0036] Under the condition of 150℃ and 50rpm, the POE and mass fraction are respectively 0, 2.5, 5, 7.5, 10, 12.5, 15, 17.5 in a torque rheometer (XSS-300, produced by Shanghai Light Machinery Mould Factory) The multi-walled carbon nanotubes (MWCNT) were blended for 5 minutes to obtain a masterbatch; after that, the cross-linked particles with a content of 25 wt.% were added, and the blending was continued for 5 minutes. After blending, hot press at 150° C., 10 MPa for 5 minutes, and cool to obtain cross-linked particles / POE / MWCNT-B conductive elastomer.
Embodiment 3
[0038] The vulcanizing agent uses 3 phr dicumyl peroxide (DCP), blended with ethylene octene copolymer (POE) for 1 min, statically vulcanized at 170°C and 10 MPa for 15 min, and cooled for 1 min. After being pulverized by a high-speed pulverizer with a rotation speed of 25000 rpm for 3 minutes, cross-linked particles with a particle size of 20-40 mesh (about 420-850 microns) are sieved with a sample sieve.
[0039] Under the condition of 150℃ and 50rpm, the POE and mass fraction are respectively 0, 2.5, 5, 7.5, 10, 12.5, 15, 17.5 in a torque rheometer (XSS-300, produced by Shanghai Light Machinery Mould Factory) The multi-walled carbon nanotubes (MWCNT) are blended for 5 minutes to obtain a masterbatch; then the crosslinked particles with a content of 75 wt.% are added, and the blending is continued for 5 minutes. After blending, hot press at 150° C., 10 MPa for 5 min, and after cooling to prepare cross-linked particles / POE / MWCNT-C conductive elastomer.
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