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Low-density environmental-friendly ethylene-propylene-diene-terpolymer granule and preparation method thereof

A technology of EPDM and EPDM rubber, which is applied in the field of low-density environmental protection EPDM particles and their preparation, can solve the problems of high particle density, large human injury, and large amount of paving, and achieves improved environmental protection. performance, reducing poison gas, reducing the effect of releasing poison gas

Inactive Publication Date: 2017-07-11
苏州大乘环保新材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing EPDM particle formula is filled with a large amount of denser fillers such as calcium carbonate and pottery clay, so the particle density produced is larger and the paving consumption is more; in addition, in the raw materials used in the production of rubber particles , Accelerators containing secondary amines may generate N-nitrosamines, which are more harmful to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of low-density environment-friendly EPDM particles, comprising the steps of:

[0037] (1) According to 100 parts of EPDM rubber, 50 parts of calcium carbonate, 20 parts of 46# white oil, 20 parts of hollow glass microspheres, 1 part of zinc oxide, 0.5 parts of stearic acid, 0.5 parts of accelerator CZ, accelerator 0.5 parts of TBzTD and 1 part of sulfur were weighed and put into an internal mixer for mixing at a temperature of 120°C for 30 minutes; after mixing, they were put into an open mixer for refining at a temperature of 60°C for 30min, the refined mixture was obtained;

[0038](2) Put the refined mixture into the extruder to continuously extrude the sheet. The temperature of the extruder is 120°C, and then it is put into a vulcanization tank for vulcanization. The vulcanization time is 30min, the temperature is 160°C, and the pressure is 7MPa; after vulcanization out of the tank, cooled at room temperature for 12 hours, and then granulated a...

Embodiment 2

[0040] A preparation method of low-density environment-friendly EPDM particles, comprising the steps of:

[0041] (1) According to 100 parts of EPDM rubber, 150 parts of calcium carbonate, 30 parts of 46# white oil, 20 parts of hollow glass microspheres, 2 parts of zinc oxide, 1 part of stearic acid, 1.5 parts of accelerator CZ, accelerator 0.5 parts of TBzTD and 3 parts of sulfur were weighed and put into an internal mixer for mixing at a temperature of 120°C for 30 minutes; after mixing, they were put into an open mixer for refining at a temperature of 60°C for a time of 30min, the refined mixture was obtained;

[0042] (2) Put the refined mixture into the extruder to continuously extrude the sheet. The temperature of the extruder is 120°C, and then it is put into a vulcanization tank for vulcanization. The vulcanization time is 30min, the temperature is 160°C, and the pressure is 7MPa; after vulcanization out of the tank, cooled at room temperature for 12 hours, and then g...

Embodiment 3

[0044] A preparation method of low-density environment-friendly EPDM particles, comprising the steps of:

[0045] (1) According to 100 parts of EPDM rubber, 200 parts of calcium carbonate, 100 parts of 46# white oil, 50 parts of hollow glass microspheres, 5 parts of zinc oxide, 1 part of stearic acid, 1 part of accelerator CZ, peroxide 3.5 parts of dicumylbenzene and 0.5 parts of sulfur weighed the raw materials, put them into an internal mixer for mixing, the mixing temperature was 120°C, and the time was 30 minutes; after mixing, put them into an open mixer for refining, and the refining temperature was 60°C , the time is 30min to obtain the refined mixture;

[0046] (2) Put the refined mixture into the extruder to continuously extrude the sheet. The temperature of the extruder is 120°C, and then it is put into a vulcanization tank for vulcanization. The vulcanization time is 30min, the temperature is 160°C, and the pressure is 7MPa; after vulcanization out of the tank, coo...

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PUM

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Abstract

The invention discloses a low-density environmental-friendly ethylene-propylene-diene-terpolymer granule and a preparation method thereof. The technical proposal is that the low-density environmental-friendly ethylene-propylene-diene-terpolymer granule comprises the following components by weight: 100 parts of ethylene-propylene-diene-terpolymer rubber, 50-200 parts of a filler, 20-100 parts of a softener, 10-50 parts of a low density filler, 1-5 parts of an inorganic activator, 0.5-1.5 parts of an organic activator, 0.5-3 parts of an environmental-friendly accelerator and 1-5 parts of a curing agent, the ethylene-propylene-diene-terpolymer granule prepared by the formula has lower density, the used raw materials are safe and environmental-friendly, a plastic runway laid by the ethylene-propylene-diene-terpolymer granule can help reduction of release of toxic gases in hot weather or under strong ultraviolet radiation, and has excellent environmental performances.

Description

technical field [0001] The invention relates to rubber-filled granules for a plastic runway, in particular to a low-density environment-friendly EPDM granule and a preparation method thereof. Background technique [0002] The plastic runway refers to the pavement surface layer used for track and field competitions that is laid with synthetic material elastomers with rubber properties. At present, polyurethane is generally used as adhesive to pave plastic runways in China. In recent years, plastic runways paved with environmentally friendly water-based acrylic resin have appeared, but no matter what kind of adhesive is basically filled with rubber particles. [0003] EPDM rubber is a terpolymer of ethylene, propylene and a small amount of non-conjugated diene, because its main chain is composed of chemically stable saturated hydrocarbons, and only contains unsaturated double bonds in the side chain, so its resistance Ozone, heat resistance, weather resistance and other aging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/04C08K7/28C08K3/06C08K5/47C08K5/40C08K3/26C08K5/14C08K5/43C08K3/34
CPCC08L23/16C08K2201/003C08L91/06C08K13/04C08K7/28C08K3/06C08K5/47C08K5/40C08K2003/265C08K5/14C08K5/43C08K3/346
Inventor 王凯
Owner 苏州大乘环保新材有限公司
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