Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of halogen-free flame-retardant modified asphalt and its preparation method

A technology of modified asphalt and asphalt, which is applied in building components, building insulation materials, construction, etc., can solve the problems of toxicity, harm to the environment and human health, and achieve the effects of reducing the amount of release, being environmentally friendly, and simple preparation methods

Active Publication Date: 2016-08-24
CHONGQING ZONJO RENEWABLE RESOURCES DEV CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Halogenated flame retardants emit toxic smoke and gas while being flame retardant, which endangers the environment and human health. Therefore, how to overcome the shortcomings of the existing technology is an urgent problem to be solved in the technical field of road building materials.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A halogen-free flame-retardant modified asphalt, comprising the following components in parts by weight: 100 parts of asphalt, 12 parts of waste rubber powder, 1 part of magnesium hydroxide whiskers, 6 parts of melamine, 2 parts of pentaerythritol, titanate 1 part of coupling agent, 1 part of silica powder, 1 part of sulfur stabilizer, 15 parts of SBS.

[0018] The preparation method of the halogen-free flame-retardant modified asphalt of this embodiment comprises the following steps:

[0019] (1) Heat the asphalt to 90°C, then add magnesium hydroxide whiskers, melamine and pentaerythritol, and stir until evenly mixed to obtain a mixture;

[0020] (2) Heat the mixed material obtained in step (1) to 180°C, then add waste rubber powder, titanate coupling agent, silicon micropowder, sulfur stabilizer and SBS to it, and stir and mix for 0.2 hours, that is The halogen-free flame-retardant modified asphalt of this example was obtained.

Embodiment 2

[0022] A halogen-free flame-retardant modified asphalt, comprising the following components in parts by weight: 120 parts of asphalt, 25 parts of waste rubber powder, 2 parts of magnesium hydroxide whiskers, 10 parts of melamine, 4 parts of pentaerythritol, titanate 3 parts of coupling agent, 2 parts of silicon micropowder, 2 parts of sulfur stabilizer, 25 parts of SBS.

[0023] The preparation method of the halogen-free flame-retardant modified asphalt of this embodiment comprises the following steps:

[0024] (1) Heat the asphalt to 120°C, then add magnesium hydroxide whiskers, melamine and pentaerythritol, and stir until evenly mixed to obtain a mixture;

[0025] (2) Raise the temperature of the mixed material obtained in step (1) to 220°C, then add waste rubber powder, titanate coupling agent, silicon micropowder, sulfur stabilizer and SBS to it, stir and mix for 1 hour, that is The halogen-free flame-retardant modified asphalt of this example was obtained.

Embodiment 3

[0027] A halogen-free flame-retardant modified asphalt, comprising the following components in parts by weight: 110 parts of asphalt, 18 parts of waste rubber powder, 1.5 parts of magnesium hydroxide whiskers, 8 parts of melamine, 3 parts of pentaerythritol, titanate 2 parts of coupling agent, 1.5 parts of silicon micropowder, 1.3 parts of sulfur stabilizer, and 18 parts of SBS.

[0028] The preparation method of the halogen-free flame-retardant modified asphalt of this embodiment comprises the following steps:

[0029] (1) Heat the asphalt to 100°C, then add magnesium hydroxide whiskers, melamine and pentaerythritol, and stir until evenly mixed to obtain a mixture;

[0030] (2) Heat up the mixed material obtained in step (1) to 195°C, then add waste rubber powder, titanate coupling agent, silicon micropowder, sulfur stabilizer and SBS to it, and stir and mix for 0.6 hours, that is The halogen-free flame-retardant modified asphalt of this example was obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a halogen-free flame-retardant modified asphalt and a preparation method thereof, belonging to the technical field of road building materials. The asphalt comprises the following components in parts by weight: 100-120 parts of asphalt, 12-25 parts of waste rubber powder, 1-2 parts of magnesium hydroxide whiskers, 6-10 parts of melamine, 2-4 parts of pentaerythritol, 1~3 parts of joint agent, 1~2 parts of smoke suppressant, 1~2 parts of stabilizer, 15~25 parts of modifier. The present invention uses a halogen-free flame retardant for flame retardancy, and uses an inorganic flame retardant and an organic flame retardant to compound synergistic flame retardancy, which has excellent flame retardancy, and the addition of a smoke suppressant effectively reduces the amount of smoke released during combustion, and at the same time , Using the common "black pollution" in the industry - waste rubber powder and modifiers to modify asphalt together is not only beneficial to environmental protection, but also conducive to the comprehensive utilization of resources, and is extremely friendly to the environment. In addition, the preparation method of the invention is simple and easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of road building materials, and in particular relates to a halogen-free flame-retardant modified asphalt and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of our country's economy, the construction of high-speed highways in our country has been rapidly developed. Asphalt pavement is gradually favored by people because of its advantages such as comfortable driving, low noise, good skid resistance and high traffic safety. However, due to the flammability of asphalt, when a fire breaks out in the tunnel, a large amount of toxic and dense smoke will be produced, which will bring great difficulties to rescue work and personnel escape, and will easily cause heavy losses of personnel and property. Therefore, it is of great significance to improve the flame retardancy of asphalt. [0003] At present, most of the flame-retardant asphalts on the market u...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L21/00C08L53/02C08K13/04C08K7/08C08K5/3492C08K5/053C08K3/36C08K3/22
Inventor 戴晓宸
Owner CHONGQING ZONJO RENEWABLE RESOURCES DEV CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com