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Halogen-free intumescent asphalt flame retardant and application thereof

An intumescent flame retardant and intumescent technology, which is applied in building components, building insulation materials, construction, etc., can solve the problems of large amount of inorganic flame retardants, decline in mechanical properties of asphalt, and non-permanent flame retardancy, and achieve environmental impact Small, reduces smoke, adds handy effects

Inactive Publication Date: 2016-12-21
ZHONGSHAN COMPLORD NEW MATERIALS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large amount of inorganic flame retardants added, the mechanical properties of asphalt have dropped significantly; halogen-containing flame retardants have potential environmental risks, and release toxins when burned, which endangers the environment; question

Method used

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  • Halogen-free intumescent asphalt flame retardant and application thereof
  • Halogen-free intumescent asphalt flame retardant and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The halogen-free intumescent asphalt flame retardant of this embodiment is made of the following raw materials in parts by weight: 58 parts of halogen-free intumescent flame retardant, 10 parts of calcium phosphomolybdate, and 33 parts of magnesium hydroxide.

[0023] The halogen-free intumescent flame retardant is made of the following raw materials in parts by weight: 27 parts of triazine char-forming agent, 23 parts of urea, and 40 parts of modified acid source;

[0024] The modification method of the modified acid source is as follows: disperse ammonium polyphosphate in ethanol to obtain an ethanol solution of ammonium polyphosphate with a mass concentration of 40%, then heat up to the ethanol solution of ammonium polyphosphate in a reflux state, gradually Add 3-aminopropyltriethoxysilane dropwise, complete the dropwise addition within 1h, then keep warm for 2h, then add dropwise the hydrolysis solution of tetraethyl orthosilicate with a mass concentration of 2%, kee...

Embodiment 2

[0028] The halogen-free intumescent asphalt flame retardant of this embodiment is made of the following raw materials in parts by weight: 50 parts of halogen-free intumescent flame retardant, 8 parts of ammonium molybdate, and 25 parts of magnesium oxide.

[0029] The halogen-free intumescent flame retardant is made of the following raw materials in parts by weight: 20 parts of a triazine-based char-forming agent, 27 parts of melamine, and 45 parts of a modified acid source;

[0030] The modification method of the modified acid source is as follows: dispersing melamine phosphate in ethanol to obtain an ethanol solution of melamine phosphate with a mass concentration of 40%, and then heating up to the ethanol solution of melamine phosphate in a reflux state, gradually Add 3-aminopropyltrimethoxysilane dropwise, complete the dropwise addition within 1 hour, then keep warm for 2 hours, then add dropwise the hydrolysis solution of tetraethyl orthosilicate with a mass concentration ...

Embodiment 3

[0033] The halogen-free intumescent asphalt flame retardant of this embodiment is made of the following raw materials in parts by weight: 65 parts of halogen-free intumescent flame retardant, 12 parts of zinc oxide, and 40 parts of calcium carbonate.

[0034]The halogen-free intumescent flame retardant is made of the following raw materials in parts by weight: 35 parts of triazine char-forming agent, 30 parts of polyamide, and 50 parts of modified acid source;

[0035] The modification method of the modified acid source is as follows: disperse melamine phosphate and zinc borate in ethanol to obtain an ethanol solution with a mass concentration of 60% melamine phosphate and zinc borate, and then heat up to melamine phosphate and zinc borate. After the ethanol solution appears in a reflux state, add 3-aminopropyltriethoxysilane dropwise, complete the dropwise addition within 1h, then keep it warm for 2h, and then add dropwise the hydrolysis solution of ethyl orthosilicate with a ...

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Abstract

The invention discloses a halogen-free intumescent asphalt flame retardant. The flame retardant comprises the following raw materials in parts by weight: 50-70 parts of the halogen-free intumescent asphalt flame retardant, 5-15 parts of a smoke inhibitor, and 10-40 parts of a flame retardation synergist. In addition, the invention also discloses a method for preparing flame-retarded modified asphalt by the halogen-free intumescent asphalt flame retardant. The method comprises the following steps: heating the asphalt to the temperature of 170-190 DEG C, then adding the halogen-free intumescent asphalt flame retardant, and mixing the halogen-free intumescent asphalt flame retardant at the stirring rate of 500 r / min-600 r / min and stirring the material to obtain the flame-retarded modified asphalt, the mass of the halogen-free intumescent asphalt flame retardant accounts for 10-40% of that of the asphalt, and the halogen-free intumescent asphalt flame retardant is any one shown in the right claim 1-8. The halogen-free intumescent asphalt flame retardant has the characteristics of non halogen, environmental protection, easy addition, persistent flame retardation, and little smoke release amount, when the halogen-free intumescent asphalt flame retardant is used for the flame-retarded modified asphalt, the halogen-free intumescent asphalt flame retardant has no obvious deterioration effect on pavement performance of asphalt, and the flame retardation performance of the asphalt is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of road building materials, and in particular relates to a halogen-free intumescent asphalt flame retardant and an application thereof. Background technique [0002] With the rapid development of my country's national economy, the traffic volume is increasing rapidly, and the vehicles are becoming larger and larger. Modern traffic has put forward higher and higher requirements for the quality of road construction. Asphalt pavement is characterized by its good mechanical properties, flat and wear-resistant surface, and comfortable It has been widely used due to its good driving performance and ease of construction. In expressway construction, asphalt concrete pavement is more and more widely used at home and abroad for its advantages of no joints, good surface smoothness, smooth driving, strong comfort, high degree of construction mechanization, fast progress, good quality, and simple maintenance. to construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L77/00C08K13/06C08K9/06C08K5/3492C08K5/21C08K3/22C08K3/32C08K3/24C08K3/34C08K3/38
CPCC08L95/00C08K3/22C08K3/24C08K3/32C08K3/34C08K3/38C08K5/21C08K5/3492C08K5/34922C08K5/34928C08K9/06C08K13/06C08K2003/222C08K2003/2224C08K2003/323C08K2003/387C08L2201/02C08L2201/14C08L2201/22C08L77/00C08K2003/328
Inventor 赖涛张秀芹何燕岭彭志宏郑怀宇
Owner ZHONGSHAN COMPLORD NEW MATERIALS CO LTD
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