Low-temperature-resistant modified asphalt waterproof coiled material and preparation method thereof

A technology for modifying asphalt and waterproofing membranes, applied in building thermal insulation materials, asphalt layered products, chemical instruments and methods, etc., can solve the problems of surface asphalt cracking, affecting the waterproof effect, etc., to achieve resistance to sunlight and excellent dimensional stability. , the effect of large elongation

Active Publication Date: 2018-04-13
豫王建能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the elastomer (SBS) modified asphalt waterproof membrane is exposed to the outside for a long time, and the wind and sun can easily cause the surface asphalt to crack and affect the waterproof effect.

Method used

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  • Low-temperature-resistant modified asphalt waterproof coiled material and preparation method thereof
  • Low-temperature-resistant modified asphalt waterproof coiled material and preparation method thereof
  • Low-temperature-resistant modified asphalt waterproof coiled material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation of embodiment 1 modified asphalt

[0033] Weigh 37% of modified asphalt raw materials 100# asphalt, 8% of 10# asphalt, 7% of SBS, 10% of naphthenic oil, 12% of rubber powder, 6% of polypropylene and 20% of stone powder according to the following weight percentages.

[0034] Mix 100# asphalt and 10# asphalt and heat to 170°C;

[0035] Under the condition of stirring, add naphthenic oil, SBS, rubber powder, and polypropylene in sequence, stir evenly, raise the temperature to 190°C, keep stirring, and keep warm for 30 minutes.

[0036] Add stone powder and continue to stir for 1 hour at 180°C to obtain low-temperature-resistant modified asphalt.

Embodiment 2

[0037] The preparation of embodiment 2 waterproof coiled material

[0038] Heat the filament polyester felt to 160°C until fully dried.

[0039] Immerse the dry filament polyester felt with naphthenic oil at a temperature of 190°C; squeeze out excess naphthenic oil on the surface after fully soaking in oil.

[0040] Put the pretreated filament polyester felt base into the coating pool, and evenly coat the modified asphalt prepared in Example 1 on both sides of the filament polyester felt base, and control the coating temperature to 180°C .

[0041] After the tire base is coated, cool down to a lower surface temperature of 120°C and press the release film with a film pressing machine.

[0042] Control the temperature of the modified asphalt on the upper surface of the waterproof membrane to 120°C, and use a sand covering device to evenly cover the upper surface of the membrane with ceramic sintered sand. The mold plate outside the sand covering device controls the flow of sa...

Embodiment 3-40

[0044] Example 3-40°C low temperature resistant modified bitumen waterproof membrane

[0045]Refer to Example 1-2 to prepare -40°C low-temperature-resistant modified bitumen waterproofing membrane. Except for the ratio of raw materials, other steps are the same as those in Example 1-2.

[0046] Raw material ratio of -40°C low temperature resistant modified asphalt waterproofing membrane, by weight: 100# asphalt 38%, 10# asphalt 7%, SBS 6%, naphthenic oil 14%, rubber powder 10%, polypropylene 7%, stone powder 18%.

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Abstract

The invention relates to a low-temperature-resistant modified asphalt waterproof coiled material. The low-temperature-resistant modified asphalt waterproof coiled material comprises a base substrate,an upper modified asphalt layer, a lower modified asphalt layer, an isolation layer and a covering layer. The waterproof coiled material provided by the invention has the following advantages: excellent low-temperature performance is obtained through component optimization of modified asphalt under the condition of maintaining waterproofness, strength and toughness; and through close cooperation of the modified asphalt with the base substrate, the isolation layer and the covering layer, waterproofness and strength are further reinforced, and the waterproof coiled material is more long-lastingand durable.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a waterproof coiled material for construction, in particular to a low-temperature-resistant modified asphalt waterproof coiled material and a preparation method thereof. Background technique [0002] Elastomer (SBS) modified asphalt waterproofing membrane is based on polyester felt or glass fiber felt, styrene-butadiene-styrene (SBS) copolymerized thermoplastic elastomer is used as modifier, and both sides are covered with polyester. Vinyl film, fine sand, powder or mineral granules (sheets) are used to make modified asphalt waterproofing membranes, which occupy an absolute dominant position in the European waterproofing material market. Except for Italy, other European countries mainly use SBS modification. , The market share is more than 80%, and it is used in various construction projects such as buildings, roads, railways, bridges, airports and subways. my country has intro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B5/16B32B9/04B32B11/02B32B11/04B32B11/10B32B17/02B32B27/36B32B27/02B32B27/32B32B7/08B32B33/00B32B37/10B32B37/06B32B37/24E04B1/66D06N5/00C08L95/00C08L53/02C08L23/12C08L21/00C08K3/34
CPCB32B7/08B32B11/02B32B11/04B32B11/046B32B11/10B32B11/12B32B27/32B32B33/00B32B37/06B32B37/10B32B37/24B32B2255/02B32B2255/10B32B2255/20B32B2255/26B32B2262/0276B32B2262/101B32B2307/30B32B2307/552B32B2307/5825B32B2307/712B32B2307/7145B32B2307/7265B32B2307/752B32B2419/00C08L95/00C08L2205/025C08L2205/035D06N5/006D06N2201/02D06N2201/082D06N2209/103D06N2209/142D06N2209/143D06N2209/1671D06N2209/1678D06N2209/1692D06N2211/06E04B1/66C08L53/02C08L23/12C08L21/00C08K3/34
Inventor 秦奇东张志功蒙日权吴胜利孙龙
Owner 豫王建能科技股份有限公司
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