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Preparation method of bituminous waterproof sheet material

A kind of asphalt waterproof membrane and asphalt technology, which is applied in the processing of tar asphalt/petroleum asphalt/natural asphalt, melting processing of tar asphalt/petroleum asphalt/natural asphalt, heating processing of tar asphalt/petroleum asphalt/natural asphalt, etc., can Solve the problems of high cost, time-consuming and labor-intensive, and long construction time, and achieve the effect of short construction period, simple preparation steps, and good water resistance

Inactive Publication Date: 2016-08-17
CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention: Aiming at the disadvantages of the current waterproof coiled material, which need to be melted at high temperature before laying, which is time-consuming and laborious, resulting in long construction time and high cost, a method of weighing asphalt and soaking in acid and alkali repeatedly is provided. Tumble in the sun until dry, crush, grind and sieve to get asphalt powder, add concentrated sulfuric acid to acidify, mix with polyacrylamide, and then vibrate on a shaker, ultrasonically disperse, melt at high temperature, and spray on the surface of the melt at the same time Coating carbon black, adding N,N-diphenyl-p-phenylenediamine and tall oil to mix and keep warm to prepare bitumen waterproof membrane

Method used

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Examples

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Effect test

example 1

[0016] First weigh 2kg of bitumen, soak the bitumen in a 15% citric acid aqueous solution with a mass fraction of it for 30 minutes. After soaking, put it in diethanolamine soak for 30 minutes, then put it in butane tetracarboxylic acid aqueous solution for 30 minutes. , Soak it in lithium diisopropylamide for 30 minutes to obtain the pre-treated asphalt; then put the pre-treated asphalt in the sun for 3 days, and turn it into the sun every 4h until the water content is At 3%, stop drying, put it in a pulverizer, pulverize, and grind in a mill, pass a 70-mesh sieve to obtain asphalt powder; add 72% concentrated sulfuric acid to the asphalt powder obtained above , The added amount is 10% of the mass of asphalt powder, after stirring and mixing, the acidification reaction is 1h to obtain the reactant. Add 10% of the reactant mass of polyacrylamide to the reactant, and stir and mix at 120r / min to obtain the mixture; Put the mixture in a shaker, shake it for 1h, and place it in an ...

example 2

[0018] First, weigh 3kg of bitumen, put the bitumen into 15% citric acid aqueous solution and soak for 35 minutes. After soaking, soak it in diethanolamine for 35 minutes, then put it in butane tetracarboxylic acid aqueous solution for 35 minutes. , Soak it in lithium diisopropylamide for 35 minutes to obtain the pre-treated asphalt; then put the pre-treated asphalt in the sun for 4 days, turn it on every 5h, and wait until the water content is At 4%, stop drying, put it in a pulverizer, pulverize, and grind in a mill, pass through a 75-mesh sieve to obtain asphalt powder; add 73% concentrated sulfuric acid to the asphalt powder obtained above , The added amount is 13% of the mass of asphalt powder, after stirring and mixing, the acidification reaction is 2h to obtain the reactant. Add 11% of the reactant mass of polyacrylamide to the reactant and stir and mix at 120r / min to obtain the mixture; Put the mixture in a shaker, oscillate for 2h, and place it in an ultrasonic dispers...

example 3

[0020] First weigh 3kg of bitumen, soak the bitumen in 15% citric acid aqueous solution for 40 minutes, after soaking, soak it in diethanolamine for 40 minutes, then put it in butane tetracarboxylic acid aqueous solution for 40 minutes, after soaking , Soak it in lithium diisopropylamide for 40 minutes to obtain the pre-treated asphalt; then put the pre-treated asphalt in the sun for 5 days, turning it into the sun every 6h, and wait until the water content is At 4%, stop drying, put it in a pulverizer, pulverize, and grind in a mill, pass through an 80-mesh sieve to obtain asphalt powder; add 75% concentrated sulfuric acid to the asphalt powder obtained above , The addition amount is 15% of the asphalt powder mass, and the reaction is acidified for 2h after stirring and mixing to obtain the reactant. Add 12% polyacrylamide by the reactant mass to the reactant and stir and mix at 120r / min to obtain the mixture; Put the mixture in a shaker, oscillate for 2h, and place it in an u...

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Abstract

The invention discloses a method for preparing an asphalt waterproof coiled material, which belongs to the technical field of waterproof coiled material preparation. The present invention weighs asphalt, soaks it repeatedly in acid and alkali, turns it in the sun until dry, crushes, grinds and sieves to obtain asphalt powder, adds concentrated sulfuric acid to acidify, mixes it with polyacrylamide, and then undergoes shaker oscillation and ultrasonic dispersion treatment Afterwards, high-temperature melting is carried out, and carbon black is sprayed on the surface of the melt at the same time, and N,N-diphenyl-p-phenylenediamine and tall oil are added for heat preservation to prepare bitumen waterproof membrane. The beneficial effects of the invention are: the preparation steps of the invention are simple, and the obtained product does not need to be melted at high temperature when used, saving time and effort; the construction period is short, the cost is reduced by 20-30%, and the water resistance is good.

Description

Technical field [0001] The invention relates to a method for preparing an asphalt waterproof coiled material, and belongs to the technical field of waterproof coiled material preparation. Background technique [0002] Waterproof coiled material is mainly used for building walls, roofs, tunnels, highways, landfills, etc., to resist external rainwater and groundwater leakage, a flexible building material product that can be rolled into a roll, as the foundation of the project The leak-free connection with the building is the first barrier to waterproof the entire project and plays a vital role in the entire project. The main products are asphalt waterproofing membrane and polymer waterproofing membrane. Currently, bituminous waterproofing membranes are generally used. Asphalt waterproofing membranes are made of polyester fiber non-woven fabric, jute cloth, fiberglass felt, etc., respectively, as the base, and plastic film is used as the anti-adhesive isolation layer. Processed by...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L33/26C08K3/04C08K5/18C10C3/00C10C3/02C10C3/10C10C3/14
CPCC08L95/00C08L2205/03C10C3/002C10C3/005C10C3/023C10C3/026C10C3/10C10C3/14
Inventor 郭伟明盛海丰
Owner CHANGZHOU C PE PHOTO ELECTRICITY SCI & TECHN
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