Halloysite nanotube synergistic flame-retardant modified asphalt and preparation method thereof

A technology of halloysite nanotubes and modified asphalt, applied in the field of flame retardant asphalt, can solve problems such as the toxic addition amount of flame retardants, achieve good water damage resistance, good thermal stability, and improve high temperature rutting resistance. Effect

Pending Publication Date: 2022-08-02
CHONGQING JIAOTONG UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention intends to provide a halloysite nanotube synergistic flame-retardant modified asphalt and its preparation method, which solves the problem that the existing flame retardants are toxic or added in a large amount when realizing the flame-retardant effect

Method used

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  • Halloysite nanotube synergistic flame-retardant modified asphalt and preparation method thereof
  • Halloysite nanotube synergistic flame-retardant modified asphalt and preparation method thereof
  • Halloysite nanotube synergistic flame-retardant modified asphalt and preparation method thereof

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Embodiment Construction

[0026] The present invention is described in further detail below by specific embodiments:

[0027] A halloysite nanotube synergistic flame retardant modified asphalt, comprising the following raw materials in parts by weight: 100 parts of SBS modified asphalt and 2-11 parts of a nano synergistic flame retardant, the nano synergistic flame retardant comprising Substances with the following components: 2-11 parts of halloysite nanotubes and 7-11 parts of a targeted controlled-release flame retardant, and the targeted controlled-release flame retardant consists of 6-8 parts of diethylaluminum hypophosphite and 3-4 parts of ultra-fine aluminum hydroxide composition. Among them, halloysite nanotubes are nanoscale tubular silicates. The particle size of halloysite nanotubes is less than 2um. Only when the average particle size is smaller than this range can nanomaterials effectively exert the characteristics of nanomaterials. The purity of diethylaluminum hypophosphite is greater ...

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Abstract

The invention discloses halloysite nanotube synergistic flame-retardant modified asphalt and a preparation method thereof, and particularly relates to the technical field of flame-retardant asphalt. Comprising the following raw materials in parts by weight: 100 parts of SBS modified asphalt and 2-11 parts of a nano synergistic flame retardant, the nano synergistic flame retardant comprises the following substances in parts by weight: 2-11 parts of halloysite nanotubes and 7-11 parts of a targeted controlled-release flame retardant, and the targeted controlled-release flame retardant is composed of 6-8 parts of diethyl aluminum hypophosphite and 3-4 parts of superfine aluminum hydroxide. By adopting the technical scheme of the invention, the problem that the existing flame retardant is toxic or large in addition amount when realizing a flame-retardant effect is solved, and the flame retardant can be used for improving various properties of asphalt.

Description

technical field [0001] The invention relates to the technical field of flame retardant asphalt, in particular to a halloysite nanotube synergistic flame retardant modified asphalt and a preparation method thereof. Background technique [0002] Asphalt is an organic polymer compound composed of carbon and hydrogen as the main elements, which is flammable. The combustion of asphalt is a chemical process of exothermic and decomposing. During the combustion, hydrogen, methane, benzene and alkane flammable gases are decomposed. The combustion of these gases can further accelerate the thermal decomposition of asphalt, especially in tunnels. In case of fire, there will be hazards of rapid fire expansion, wide range and large losses. With the continuous emergence of highway tunnels and the increase in tunnel traffic, the frequency of tunnel fires will gradually increase. Due to the closed nature of the tunnel, in the event of a fire accident, the consequences would be unimaginable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08K7/26C08K5/5313C08K3/22
CPCC08L95/00C08L2201/02C08K2201/011C08K2003/2227C08L53/02C08K7/26C08K5/5313C08K3/22Y02A30/30
Inventor 何兆益吴逸飞谭洋伟王江华郭庆李家龙李修磊徐浩
Owner CHONGQING JIAOTONG UNIVERSITY
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