SBS (styrene-butadiene-styrene)-modified colorless cementing material and preparation method thereof

A binder and modification technology, applied in the field of colorless binder and its preparation, can solve the problems of high cost of decolorization of petroleum asphalt, unfavorable promotion of colored binder, uncontrollable quality of binder, etc., to meet road use performance, production equipment And the effect of simple production process and excellent water damage resistance

Inactive Publication Date: 2014-09-24
WUJIANG CITY MINGGANG ROAD & BRIDGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of decolorizing petroleum asphalt is expensive, the process is complicated, and it is difficult to produce in large quantities. The decolorized substance also has a certain color, which is not easy to be colored. The quality of the obtained cementitious material is uncontrollable. It is easy to crack at low temperature and unstable at high temperature. High temperature rutting and low temperature cracks will occur on the pavement, and it cannot be used in areas with different temperatures, different climatic conditions, and different rainfall; and the viscoelasticity is poor, and the paved road is easy to deform; the adhesion to the aggregate is not good, Under the action of vehicles, the binder film is easily taken away by the vehicle, and at the same time, the pigment in the binder is also taken away, which makes the road surface lose its original color, which is not conducive to the promotion of colored binders

Method used

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  • SBS (styrene-butadiene-styrene)-modified colorless cementing material and preparation method thereof
  • SBS (styrene-butadiene-styrene)-modified colorless cementing material and preparation method thereof
  • SBS (styrene-butadiene-styrene)-modified colorless cementing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A colorless binder modified by SBS, including 60kg rubber oil, 36kg C5 petroleum resin, 2kg ethylene-vinyl acetate copolymer, 2kg styrene-butadiene-styrene block copolymer, 0.3kg methyl fiber element, prepared according to the following steps:

[0034] Step 1: inject 60kg of rubber oil into the reaction kettle and raise the temperature to 145°C-155°C;

[0035] Step 2: Add 36kg of C5 petroleum resin into the reaction kettle with a screw conveyor, keep the temperature at 145°C-155°C, and stir until the reactants are completely melted;

[0036] Step 3, put 2kg of ethylene-vinyl acetate copolymer into the reaction kettle, stir, and swell for 5-7 hours; mix the components with each other to form a uniform mixture;

[0037] Step 4: Grind 2kg of styrene-butadiene-styrene block copolymer through a colloid mill, put it into the colorless cement obtained in step 3, stir and swell for 50-60 minutes at 145°C-155°C, and the obtained The colorless cementing material is ground and mix...

Embodiment 2

[0040] A colorless binder modified by SBS, including 57kg rubber oil, 35kg C5 petroleum resin, 4kg ethylene-vinyl acetate copolymer, 4kg styrene-butadiene-styrene block copolymer, 0.5kg methyl fiber element, prepared according to the following steps:

[0041] Step 1: Inject 57kg of rubber oil into the reaction kettle and raise the temperature to 145°C-155°C;

[0042] Step 2: Add 35kg of C5 petroleum resin into the reaction kettle with a screw conveyor, keep the temperature at 145°C-155°C, and stir until the reactants are completely melted;

[0043] Step 3, put 4kg of ethylene-vinyl acetate copolymer into the reaction kettle, stir, and swell for 5-7 hours; mix the components with each other to form a uniform mixture;

[0044] Step 4, grind 4 kg of styrene-butadiene-styrene block copolymer through a colloid mill, put it into the colorless cement obtained in step 3, stir and swell for 50-60 minutes at 145°C-155°C, and the obtained The colorless cementing material is ground and ...

Embodiment 3

[0047] A colorless binder modified by SBS, including 43kg rubber oil, 50kg C5 petroleum resin, 7kg ethylene-vinyl acetate copolymer, 2kg styrene-butadiene-styrene block copolymer, 0.3kg methyl cellulose element, prepared according to the following steps:

[0048] Step 1: Inject 43kg of rubber oil into the reaction kettle and raise the temperature to 145°C-155°C;

[0049] Step 2: Add 50kg of C5 petroleum resin into the reaction kettle with a screw conveyor, keep the temperature at 145°C-155°C, and stir until the reactants are completely melted;

[0050] Step 3, put 7kg of ethylene-vinyl acetate copolymer into the reaction kettle according to the weight ratio, stir, and swell for 5-7 hours; mix the components with each other to form a uniform mixture;

[0051] Step 4: Grind 2kg of styrene-butadiene-styrene block copolymer through a colloid mill, put it into the colorless cement obtained in step 3, stir and swell for 50-60 minutes at 145°C-155°C, and the obtained The colorless ...

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Abstract

The invention discloses an SBS (styrene-butadiene-styrene)-modified colorless cementing material which is prepared by mixing the following components in parts by weight: 43-70 parts of base oil, 28-50 parts of modifier, 2-7 parts of ethylene-vinyl acetate copolymer and 2-4 parts of styrene-butadiene-styrene block copolymer. The invention also discloses a preparation method of the SBS-modified colorless cementing material, which comprises the following steps: mixing the rubber oil, C5 petroleum resin, ethylene-vinyl acetate copolymer and styrene-butadiene-styrene block copolymer until the C5 petroleum resin, ethylene-vinyl acetate copolymer and styrene-butadiene-styrene block copolymer are sufficiently swollen and mixed in the rubber oil to form a uniform mixture, and adding methyl cellulose as a stabilizer, thereby obtaining the SBS-modified colorless cementing material. The SBS-modified colorless cementing material disclosed by the invention has the advantages of low cracking tendency at low temperature, excellent high-temperature stability, excellent water damage resistance, excellent viscoelasticity, accessible raw materials and lower cost.

Description

technical field [0001] The invention relates to a colorless cement modified by SBS (styrene-butadiene-styrene block copolymer) and a preparation method thereof. Background technique [0002] The research and application of colored cementitious material pavement began in the early 1980s in my country, but with little effect, and there are still few applications on the road. Since the 1990s, people have added various pigments to the colorless cement to make colored cement for road construction. The application of colored cement is very extensive, it can be used to dress up city streets, dress up sidewalks, bicycle lanes, beautify park corridors, squares, sports fields, basketball courts, etc., especially for paving special lanes such as urban buses. The surrounding architectural art is better coordinated, and it can also play a role in beautifying the city and inducing traffic, and it can also reflect the characteristics and style of a country or a city, enhance the image and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/00C08L53/02C08L23/08C08L57/02C08L23/06C08L1/28
Inventor 岳光斌王云王道访庄国强郑东先秦晋亮
Owner WUJIANG CITY MINGGANG ROAD & BRIDGE
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