Nano modified high-performance dynamic vulcanization thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer, nano-modification technology, applied in the direction of coating, etc., can solve the problem of reduction, and achieve the effects of cost reduction, high surface atom occupancy, and good physical properties

Inactive Publication Date: 2014-03-05
NINGBO QINGHU ELASTOMER SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another example is the US patent application document (publication number: US2010036027). Although the thermal stability of the TPV material is improved in this patent, other physical properties are basically unchanged or even reduced.

Method used

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  • Nano modified high-performance dynamic vulcanization thermoplastic elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take each raw material according to the weight percentage of the following nano-modified high-performance dynamic vulcanized thermoplastic elastomer, 30 parts of polypropylene resin, 70 parts of EPDM rubber, 80 parts of naphthenic oil, 2.4 parts of dicumyl peroxide, N - 1.2 parts of phenylmaleimide, 20 parts of calcium carbonate, 4.5 parts of other processing aids and 7 parts of nano silicon dioxide with a particle size of 30nm;

[0032] Mix other raw materials except filler oil in a high mixer for 3 minutes;

[0033] The mixed raw materials are discharged from the high mixer, poured into the feeder, fed into the twin-screw extruder by the feeder, and the filling oil is side-fed into the twin-screw extruder through the metering pump , extrusion granulation, the host speed of the twin-screw extruder is 350r / min, and the temperature of the twin-screw extruder is 200°C;

[0034] Pour the nano-modified high-performance dynamic vulcanized thermoplastic elastomer obtained by...

Embodiment 2

[0036] Weigh each raw material according to the weight percentage of the following nano-modified high-performance dynamic vulcanized thermoplastic elastomer, 25 parts of polypropylene resin, 75 parts of EPDM rubber, 75 parts of industrial white oil, di-tert-butyl peroxide cumene (BIPB) 2.6 parts, triisopropyl isocyanurate 1.3 parts, calcium carbonate 22 parts, other processing aids 4.8 parts and nano-silica with a particle size of 50nm 8 parts;

[0037] Mix other raw materials except filler oil in a high mixer for 2 minutes;

[0038] The mixed raw materials are discharged from the high mixer, poured into the feeder, fed into the twin-screw extruder by the feeder, and the filling oil is side-fed into the twin-screw extruder through the metering pump , extrusion granulation, the host speed of the twin-screw extruder is 300r / min, and the temperature of the twin-screw extruder is 180°C;

[0039] Pour the nano-modified high-performance dynamic vulcanized thermoplastic elastomer ob...

Embodiment 3

[0041] Weigh each raw material according to the weight percentage of nano-modified high-performance dynamic vulcanized thermoplastic elastomer as follows: 35 parts of polypropylene resin, 65 parts of EPDM rubber, 82 parts of naphthenic oil, 2.5 parts of di-tert-butyl peroxide (DTBP) 1.1 parts, 1.1 parts of trimethylolpropane trimethacrylate, 20 parts of calcium carbonate, 4.6 parts of other processing aids and 7 parts of nano silicon dioxide with a particle size of 30nm;

[0042] Mix other raw materials except filler oil in a high mixer for 5 minutes;

[0043] The mixed raw materials are discharged from the high mixer, poured into the feeder, fed into the twin-screw extruder by the feeder, and the filling oil is side-fed into the twin-screw extruder through the metering pump , extrusion granulation, the host speed of the twin-screw extruder is 600r / min, and the temperature of the twin-screw extruder is 230°C;

[0044] Pour the nano-modified high-performance dynamic vulcanized...

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Abstract

The invention relates to a nano modified high-performance dynamic vulcanization thermoplastic elastomer and a preparation method thereof, belonging to the technical field of high-molecular materials. The nano modified high-performance dynamic vulcanization thermoplastic elastomer consists of the following components in parts by weight: 10-100 parts of polyolefin resin, 10-90 parts of elastomer, 2-20 parts of nano filler, 10-120 parts of filling oil, 1-30 parts of filler and 4-30 parts of processing aid, wherein the polyolefin resin is one or more of polyolefin resin homopolymer and polyolefin resin copolymer; the nano filler is one or more of nano modified montmorillonite, nano silicon dioxide, nano titanium dioxide and nano calcium carbonate; the particle size of the nano filler is 1-100nm. The invention also provides a preparation method of the nano modified high-performance dynamic vulcanization thermoplastic elastomer. The nano modified high-performance dynamic vulcanization thermoplastic elastomer provided by the invention has good physical properties and is widely applicable.

Description

technical field [0001] The invention relates to a thermoplastic elastomer and a preparation method thereof, in particular to a nano-modified high-performance dynamic vulcanized thermoplastic elastomer and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Thermoplastic vulcanizate, also known as polyolefin alloy thermoplastic elastomer, or TPV for short, is a kind of thermoplastic elastomer (TPE). TPV is mainly composed of two parts, one is plastic, which is used as the continuous phase, and the other is rubber, which is used as the dispersed phase, which usually needs to be combined with filler oil or plasticizer, and is formed after dynamic vulcanization. Dynamically vulcanized EPDM / PP thermoplastic elastomer (TPV) is currently the most successfully developed polyolefin thermoplastic elastomer. Its environmental resistance is equivalent to that of general-purpose EPDM materials. Butadiene rubber is comparable...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/12C08K13/02C08K3/36C08K3/34C08K5/01C08K5/14C08K5/3415C08K3/26C08K5/3492C08K5/103C08L61/06C08J3/22B29B9/06B29C47/92B29C45/00B29C48/92
CPCB29C48/92C08L23/16C08K2201/003C08K2201/011C08L2207/04C08L2312/00C08L23/12C08K13/02C08K3/36
Inventor 孟凡良史伟才
Owner NINGBO QINGHU ELASTOMER SCI & TECH
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