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Environment-friendly elastomer modified asphalt waterproof material and preparation method thereof

A technology of asphalt waterproof material and body modification, which is applied in building thermal insulation materials, building components, buildings, etc., can solve the problems such as the ineffective effect of asphalt thermal oxidation aging performance and the weakening of energy.

Inactive Publication Date: 2015-01-28
NANAN GUOGAO BUILDING MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN102190957A proposes to add magnesium-aluminum-based layered double hydroxide to asphalt, and utilize the physical shielding effect of magnesium-aluminum-based layered double hydroxide on ultraviolet rays to improve the anti-ultraviolet aging ability of elastomer-modified asphalt, but asphalt is used In the process, in addition to the aging caused by ultraviolet light, thermal and oxygen aging will also occur under the action of heat and oxygen, and the effect of magnesium-aluminum-based layered double hydroxide on improving the thermal and oxygen aging resistance of asphalt is not obvious
In addition, when ultraviolet rays pass through the LDHs multi-level laminate, multi-level reflection and refraction will occur on the laminate interface, and the energy will also be weakened.

Method used

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  • Environment-friendly elastomer modified asphalt waterproof material and preparation method thereof

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Embodiment 1

[0019] An environment-friendly elastomer modified asphalt waterproof material is composed of the following components by weight, 20 parts of 10# asphalt, 40 parts of 100# asphalt, 12 parts of elastomer modifier, layered double hydroxyl composite metal hydroxide 10 parts, 17 parts of talcum powder, 5 parts of stabilizer and 5 parts of filler; the softening point of the pitch is 45-50°C, and the elastomer modifier is linear styrene-butadiene - Styrene triblock thermoplastic elastomer, star-shaped styrene-butadiene-styrene triblock thermoplastic elastomer, or a mixture of two of them, mixed in any proportion, the layered double Preparation of hydroxyl complex metal hydroxide: Mg(NO 3 ) 2 ·6H 2 O, Al(NO 3 ) 3 9H 2 O into Mg 2+ / Al 3+ A mixed brine solution with a molar ratio of 2:1, where [Mg 2+]=1mol / L, and adjust the pH value of the mixed salt solution to 10 with 2mol / L NaOH solution; take 400mL of the mixed salt solution, put it into a three-necked flask, condense and r...

Embodiment 2

[0029] An environment-friendly elastomer modified asphalt waterproof material is composed of the following components by weight, 30 parts of 10# asphalt, 50 parts of 100# asphalt, 15 parts of elastomer modifier, layered double hydroxyl composite metal hydroxide 15 parts of talcum powder, 10 parts of stabilizer and 10 parts of filler; the softening point of the pitch is 45-50°C, and the elastomer modifier is linear styrene-butadiene - Styrene triblock thermoplastic elastomer, star-shaped styrene-butadiene-styrene triblock thermoplastic elastomer, or a mixture of two of them, mixed in any proportion, the layered double Preparation of hydroxyl complex metal hydroxide: Mg(NO 3 ) 2 ·6H 2 O, Al(NO 3 ) 3 9H 2 O into Mg 2+ / Al 3+ A mixed brine solution with a molar ratio of 2:1, where [Mg 2+ ]=1mol / L, and adjust the pH value of the mixed salt solution to 10 with 2mol / L NaOH solution; take 400mL of the mixed salt solution, put it into a three-necked flask, condense and reflux i...

Embodiment 3

[0039] An environment-friendly elastomer modified asphalt waterproof material is composed of the following components by weight, 30 parts of 10# asphalt, 50 parts of 100# asphalt, 15 parts of elastomer modifier, layered double hydroxyl composite metal hydroxide 15 parts of talc, 25 parts of talc, 10 parts of stabilizer and 10 parts of filler; the softening point of the asphalt is 45-50°C, and the modifying agent is composed of inorganic filler, polymer, stabilizer and coupler The composition of the joint agent; the inorganic filler is montmorillonite, calcium carbonate or fly ash, or a mixture of them in any weight ratio, and the particle diameter is 0.04-20 μm; the polymer is a star-shaped thermoplastic elastomer polystyrene- Butadiene-styrene, wherein the content of styrene is 20% to 30% by weight; the stabilizer is PN-2 type, SWD type or HMD type stabilizer, or a mixture of them in any weight ratio; the coupling agent is Silane coupling agent, titanate coupling agent or alu...

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Abstract

The invention relates to an environment-friendly elastomer modified asphalt waterproof material which is prepared from the following components in parts by weight: 20-30 parts of 10# asphalt, 40-50 parts of 100# asphalt, 12-15 parts of an elastomer modifier, 10-15 parts of laminar bihydroxyl compound metal hydroxide, 17-25 parts of talcum powder, 5-10 parts of a stabilizer and 5-10 parts of packing. The softening point of asphalt is 45-50 DEG C and the elastomer modifier is a mixture of one or two of a linear styrene-butadiene-styrene triblock thermoplastic elastomer and a star-like styrene-butadiene-styrene triblock thermoplastic elastomer, wherein the elastomers are mixed in any proportions.

Description

technical field [0001] The invention relates to an environment-friendly elastomer modified asphalt waterproof material and a preparation method. Background technique [0002] Asphalt is an important building waterproof material, which is widely used because of its excellent waterproof performance and low price. Polymer-modified asphalt waterproofing membrane has become a building waterproof material that has attracted much attention because of its excellent high and low temperature performance. However, polymer-modified asphalt waterproofing membranes, like ordinary organic materials, are susceptible to aging due to factors such as ultraviolet light, heat, and oxygen, resulting in hardening and brittle waterproofing membranes, and rapid reduction in low-temperature flexibility. It is difficult to adapt to the cold shrinkage of the roof base layer and cracks occur, resulting in damage to the waterproof layer, resulting in roof leakage, and greatly shortening the service lif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08K13/02C08K3/22C08K3/34C08K3/32C08K3/00C08K5/13
Inventor 陈海波陈桂兰刘桂春
Owner NANAN GUOGAO BUILDING MATERIAL TECH
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