EPDM (Ethylene-Propylene-Diene Monomer) waterproofing membrane and preparation method thereof

A waterproofing membrane, EPDM technology, applied in the direction of adhesive types, film/sheet adhesives, adhesive additives, etc., can solve the trouble of construction, the waterproofing membrane cannot be welded, and the waterproofing effect is not good and other problems to achieve the effect of reducing labor intensity

CN106221025AInactive Publication Date: 2016-12-14郭二标
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-12-14
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention relates to an EPDM (Ethylene-Propylene-Diene Monomer) waterproofing membrane. The formula of the EPDM waterproofing membrane comprises the following components calculated according to the weight: 20 to 32 parts of EPDM particles, 68 to 80 parts of EPDM rubber, 45 to 50 parts of HDPE (High-Density Polyethylene), 0.2 to 0.5 part of stearic acid, 0.8 to 2 parts of zinc oxide, 2 to 5 parts of polyethylene wax, 80 to 100 parts of pottery clay, 30 to 45 parts of chlorinated paraffin oil, 0.7 part of an RD antioxidant, 70 to 80 parts of N330 carbon black, and 60 to 80 parts of N660 carbon black. The EPDM waterproofing membrane disclosed by the invention can be directly welded to realize seamless lap, and further is laid while construction to lower the labor intensity, thereby being an environment-friendly waterproofing membrane.
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Description

technical field

[0001] The invention relates to the technical field of waterproof materials, in particular to a self-adhesive heat-welded EPDM waterproof coiled material and a preparation method thereof. Background technique

[0002] EPDM waterproof membrane (referred to as EPDM membrane) is a commonly used waterproof material at present. Since there is no double bond in the main chain of the molecular structure of EPDM rubber, when it is subjected to ozone, ultraviolet rays, and humid heat When it works, the main bond is not easy to break, so it has excellent weather resistance, aging resistance, high tensile strength, high elongation, strong adaptability to base expansion or cracking, high value, light weight, and wide range of operating temperature Wide (can be used for a long time in the range of -40 ~ +80 ℃), it is an efficient waterproof material. It can also be used for cold construction, easy to operate, reduce environmental pollution, and improve the working condit...

Examples

preparation example Construction

[0037] The preparation method of above-mentioned EPDM waterproof roll material is:

[0038] Step 1: Add EPDM rubber, zinc oxide, stearic acid, pottery clay, chlorinated paraffin oil and N330 carbon black in the weight of the above formula into the internal mixer, and pressurize and knead for 4-5 minutes;

[0039] Step 2: After the temperature in the internal mixing chamber of the internal mixer reaches 70-80°C, add the granule ethylene propylene, high-density polyethylene, polyethylene wax, N660 carbon black and RD anti-aging agent into the internal mixer in sequence, pressurize and knead Refining for 2-3 minutes, after the temperature of the mixing room reaches 100°C-110°C, the glue is discharged to obtain the rubber compound;

[0040] Step 3: After the rubber material is cooled, use a calender to obtain a sheet, and then put the sheet into a vulcanizing machine for vulcanization to obtain an EPDM waterproof membrane. The width of the calender used for calendering is set to 1...