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Preparation method of low temperature-resistant modified asphalt waterproof coil

A technology of modified asphalt and waterproof membrane, which is applied in the direction of textiles, papermaking, fiber treatment, etc. It can solve the problems of poor tensile performance, cracking, poor adhesion, etc., and achieve the purpose of inhibiting the hardening of asphalt crystals and improving fluidity , The effect of improving low temperature adhesion performance

Inactive Publication Date: 2018-05-04
常州可赛成功塑胶材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a low-temperature-resistant waterproof membrane for the defects of poor adhesion under low-temperature conditions during construction and cracking due to poor tensile properties during daily use. Preparation

Method used

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  • Preparation method of low temperature-resistant modified asphalt waterproof coil

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example 1

[0025]Put the SBS rubber into the impact crusher and crush it for 30 minutes to obtain broken rubber blocks. Send the crushed rubber blocks into the liquid nitrogen freezing device, freeze to -50°C, and freeze for 3 hours. Take out the frozen broken rubber blocks and put them into crushed Grinding in the machine to obtain SBS rubber powder; according to parts by weight, put 40 parts of petroleum asphalt and 10 parts of Buton rock asphalt in a stirring tank, heat up to 90°C, keep stirring at a speed of 200r / min for 20min, and then Add SBS rubber powder into the stirring tank, and continue stirring for 40 minutes to obtain SBS-dispersed asphalt; put 300g of SBS-dispersed asphalt into the oil bath, heat up to 200°C, and keep warm for 10 minutes, then add 100mL of mineral base to the oil bath Oil, stir and mix at a low speed of 500r / min for 30min, and then emulsify at a high speed of 4000r / min to obtain rubber powder modified asphalt; add 60g polypropylene masterbatch and 80g Fly ...

example 2

[0027] Put the SBS rubber into the impact crusher and crush it for 37 minutes to obtain broken rubber pieces. Send the broken rubber pieces into the liquid nitrogen freezing device, freeze to -45°C, and freeze for 3.5 hours. Take out the frozen broken rubber pieces and put them in Pulverize in a pulverizer to obtain SBS rubber powder; in parts by weight, put 45 parts of petroleum asphalt and 13 parts of Buton rock asphalt in a stirring tank, heat up to 95°C, keep stirring at a speed of 250r / min for 25min, Then add SBS rubber powder into the stirring tank, and continue stirring for 45 minutes to obtain SBS-dispersed asphalt; put 350g of SBS-dispersed asphalt into the oil bath, heat up to 210°C, and keep it warm for 13 minutes, then add 110mL of minerals to the oil bath The base oil was stirred and mixed at a low speed of 550r / min for 33 minutes, and then emulsified at a high speed of 4100r / min to obtain rubber powder modified asphalt; 65g of polypropylene masterbatch and 83g of...

example 3

[0029] Put the SBS rubber into the impact crusher and crush it for 45 minutes to get the crushed rubber block, send the crushed rubber block into the liquid nitrogen freezing device, freeze to -40°C, freeze for 4 hours, take out the frozen crushed rubber block, put it into the crushed Grinding in the machine to obtain SBS rubber powder; according to parts by weight, put 50 parts of petroleum asphalt and 15 parts of Buton rock asphalt in a stirring tank, heat up to 100°C, keep stirring at a speed of 300r / min for 30min, and then Add SBS rubber powder into the stirring tank, and continue stirring for 50 minutes to obtain SBS-dispersed asphalt; put 400g of SBS-dispersed asphalt into the oil bath, heat up to 220°C, and keep it warm for 15 minutes, then add 120mL of mineral base to the oil bath Oil, stir and mix at a low speed of 600r / min for 35min, then emulsify at a high speed of 4200r / min to obtain rubber powder modified asphalt; add 70g polypropylene masterbatch and 85g Fly ash,...

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Abstract

The invention relates to the technical field of preparation of building waterproof materials, in particular to a preparation method of a low temperature-resistant modified asphalt waterproof coil. Thepreparation method comprises the following steps of doping self-prepared SBS (styrene-butadiene-styrene) rubber powder and base oil into asphalt, and emulsifying, so as to obtain rubber powder modified asphalt; melting and mixing the rubber powder modified asphalt, polypropylene master batch and fly ash, so as to obtain modified asphalt coating material; melting and extruding shell powder, silicagel powder and polyvinyl chloride, and cooling, so as to obtain isolation resin particles; paving the isolation resin particles on an oxidized film-coating polyester felt, and calendering, so as to obtain the waterproof coil. The preparation method has the advantages that the SBS forms a special lattice structure in the asphalt, so that the low-temperature sticking property of the waterproof coilis improved; when the modified asphalt coating material is catalyzed and oxidized, the viscosity of the asphalt coating material is improved by the carbonyl compound; after the polypropylene is addedinto the melted asphalt, the viscoelastic property of the asphalt is greatly changed under the adsorbing and swelling functions, so that the waterproof coil can maintain better viscoelastic propertyat low temperature, the tension property is also improved and the application prospect is broad.

Description

technical field [0001] 2. The present invention relates to the technical field of preparation of building waterproof materials, in particular to a method for preparing a low-temperature-resistant modified asphalt waterproof coiled material. Background technique [0002] Modified bitumen waterproofing membrane, commonly known as modified bitumen linoleum, is the leading product in the waterproofing membrane market at present. It is based on glass fiber felt, polyester felt, jute cloth, polyethylene film, polyester non-woven fabric, metal foil or two composite materials, and is modified with a synthetic polymer with a content of not less than 10%. It is a curlable flake-like waterproof material made of permanent asphalt and oxidized asphalt as dip coating materials, powdery, flake, and granular mineral materials, synthetic polymer films, and metal films as covering materials. It is mainly used as a flexible building material product for building walls, roofs, tunnels, roads...

Claims

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Application Information

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IPC IPC(8): D06N5/00D06N3/06D06N3/00D06M11/28D06N3/18D06M101/32
CPCD06M11/28D06M2101/32D06N3/0036D06N3/0063D06N3/06D06N3/18D06N5/003D06N2209/103D06N2209/128
Inventor 李承分何少雄张建初
Owner 常州可赛成功塑胶材料有限公司
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