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Inorganic nano particle and polymer composite modified emulsified asphalt

A technology of inorganic nanoparticles and compound modification, which is applied in the direction of building structure, building components, building insulation materials, etc., can solve the problem of high price, and achieve the effect of improving strength and excellent waterproof effect

Inactive Publication Date: 2008-03-19
HUNAN UNIV
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  • Abstract
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Problems solved by technology

In addition, with the rapid development of my country's real estate industry, the waterproof requirements for buildings are constantly increasing, and the price of waterproof materials on the market is generally high, so it is urgent to develop materials with low cost and high waterproof effect to put on the market

Method used

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  • Inorganic nano particle and polymer composite modified emulsified asphalt
  • Inorganic nano particle and polymer composite modified emulsified asphalt
  • Inorganic nano particle and polymer composite modified emulsified asphalt

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Embodiment Construction

[0050] A kind of inorganic nanoparticles and polymer composite modified emulsified asphalt, its weight part is composed of: asphalt: modified nano-SiO 2 : SBR: water = 600: 2: 30: 368, the modified nano-SiO 2 97 parts nano-SiO 2 It is obtained by uniformly mixing with 3 parts of commercially available KH-560 coupling agent. After mixing the various components, it is obtained by conventional emulsification treatment. The production process is shown in Figure 1.

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Abstract

A modified emulsion asphalt compounded by inorganic nano-particles and polymer contains 200-700 parts by weight of asphalt, 2-80 parts by weight of modified inorganic nano-particles, 5-50 parts by weight of styrene-butadiene rubber latex, and 170-793 parts by weight of water, wherein the modified inorganic nano-particles is prepared by mixing 95-98 parts by weight of inorganic nano-particles with 2-5 parts by weight of coupling agent, and each components are mixed, followed by normal emulsion treatment to get the emulsion asphalt. The invention utilizes unique surface effect, small size effect and macroscopic quantum tunneling effect etc. of the inorganic nano-particles to give the product comprehensive properties, such as good wear resistance, intensity sum, anti-aging property and fine waterproof effect etc. Using the invention can increase the road maintenance cycle and decrease the cost. Furthermore, the water-proof cost of construction industry is greatly decreased.

Description

technical field [0001] The invention relates to the construction of roads and railways, and the construction industry, especially for the repair and maintenance of expressways and the waterproofing of the construction industry. Background technique [0002] With the increase of traffic flow, the wear of the road surface is greatly increased than before, resulting in serious wear or even damage to the road within the service life, shortening the maintenance cycle of the road, thereby increasing the maintenance and maintenance costs of the built road; and because The existing domestic petroleum asphalt has high wax content, low ductility, weak binding force with mineral materials, high sensitivity to temperature, and is inferior to foreign modified asphalt roads in terms of aging resistance. Therefore, modified asphalt with good wear resistance, strength and aging resistance has become an urgent need for road authorities and builders, especially in the maintenance process of b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K9/00C08L9/08
Inventor 陈宪宏蒋永华范泽夫
Owner HUNAN UNIV
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