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A kind of preparation method of air bubble film material for concrete mortar

A technology of concrete mortar and bubble film, applied in the field of bubble film material preparation, can solve the problems of poor quality of bubble film, poor fire resistance, poor concrete bonding performance, etc., and achieve the effect of strong bonding performance, good fire resistance and good quality.

Active Publication Date: 2019-03-26
兴义市黔城商品混凝土有限公司
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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 poor air bubble film quality, poor bonding performance with concrete, and poor fire resistance performance, a method is provided that ball-mills and sieves dolomite clay, mixes it with deionized water and oscillates it ultrasonically. Add styrene, etc. and stir, heat to boiling and keep warm for reaction, filter cake with suction, wash and dry, stir and mix with polyethylene resin, etc., extrude and cut to obtain mixed pellets, extrude in bubble film extruder, and collect Method for rolling air bubble film material for concrete mortar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, collect the dolomite clay and place it in a ball mill, mill it at 250r / min for 3h, then pass through a 120-mesh sieve to collect the ball milled powder. According to the mass ratio of 1:10, stir and mix the ball milled powder and deionized water at 200W. Vibrate ultrasonically for 10 minutes to collect the dolomite clay dispersion; then, in parts by weight, weigh 10 parts styrene, 15 parts divinylbenzene, 25 parts polylactic acid monomer, 2 parts acrylonitrile and 10 parts prepared above. Dolomite clay dispersion liquid, stir and mix and heat to 60℃, magnetically stir for 2h; after the stirring is completed, heat and raise the temperature to the boiling of the solution, then keep it for 45min, let stand and cool to 20℃, filter and collect the filter cake, respectively Washed with absolute ethanol and deionized water for 3 times, dried at 65°C for 6 hours to prepare clay modified microspheres; then, in parts by weight, weigh 10 parts of the above-prepared clay modif...

example 2

[0020] First, collect the dolomite clay and place it in a ball mill, ball mill at 275r / min for 4h, then pass through a 125 mesh sieve to collect the ball milled powder. According to the mass ratio of 1:10, stir and mix the ball milled powder and deionized water at 250W. Vibrate ultrasonically for 13 minutes to collect the dolomite clay dispersion; then, in parts by weight, weigh 13 parts of styrene, 18 parts of divinylbenzene, 28 parts of polylactic acid monomer, 3 parts of acrylonitrile and 13 parts of the above-prepared Dolomite clay dispersion liquid, stir and mix and heat to 65℃, magnetically stir for 3h; after the stirring is completed, heat and raise the temperature to the boiling of the solution, then keep it for 52min, let stand and cool to 25℃, filter and collect the filter cake, respectively Wash 4 times with absolute ethanol and deionized water, and dry at 68℃ for 7 hours to prepare clay modified microspheres; then, in parts by weight, weigh 13 parts and 38 parts of t...

example 3

[0023] First, collect the dolomite clay and place it in a ball mill, ball mill it at 300r / min for 5h, then pass through a 130-mesh sieve to collect the ball milled powder. According to the mass ratio of 1:10, stir and mix the ball milled powder and deionized water at 300W. Vibrate ultrasonically for 15 minutes to collect the dolomite clay dispersion; then, in parts by weight, weigh 15 parts of styrene, 20 parts of divinylbenzene, 30 parts of polylactic acid monomer, 3 parts of acrylonitrile and 15 parts of the above-prepared Dolomite clay dispersion liquid, stir and mix and heat to 70℃, magnetically stir for 3h; after the stirring is completed, heat and raise the temperature to the boiling of the solution, then keep it for 60min, let stand and cool to 30℃, filter and collect the filter cake, respectively Wash 5 times with absolute ethanol and deionized water, and dry at 70℃ for 8 hours to prepare clay modified microspheres; then weigh 15 parts and 40 parts of the above-prepared ...

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Abstract

The invention discloses a method for preparing an air bubble film material for concrete mortar, belonging to the technical field of air bubble film material preparation. The method comprises the following steps: performing ball-milling on dolomite clay, sieving the milled dolomite clay, mixing the sieved dolomite clay with deionized water, performing ultrasonic oscillation, adding styrene and the like to stir, heating to a boiling state, reacting in a heat preservation condition, performing suction filtration to obtain a filter cake, washing and drying the filter cake, stirring and mixing the dried filter cake with polyethylene resin and the like, preparing mixed aggregates by means of extruding and cutting, performing extrusion in an air bubble film extruder, and rolling to obtain the air bubble film material for the concrete mortar. The method disclosed by the invention has the beneficial effects that the preparation steps are simple, and the prepared air bubble film material is excellent in quality and is strong in binding ability with concrete; the air bubble film material prepared according to the method disclosed by the invention has the advantages that the fire resistance is good, the fire rating is grade A, and the anti-puncture strength is 8.652 to 9.568 kg / cm<2>.

Description

Technical field [0001] The invention relates to a method for preparing a bubble film material for concrete mortar, and belongs to the technical field of bubble film material preparation. Background technique [0002] Air cushion film (bubble film) curing method is a direct covering type that uses solar energy to cure concrete. Compared with the natural maintenance method, it can shorten the maintenance period, save maintenance water, simple operation, and good component maintenance quality. It is suitable for curing concrete in an open-air production concrete component plant. The specific method of air cushion film curing method is: after the concrete component is formed, first cover a single layer of black plastic film, and then add a layer of air cushion film on the surface of the black plastic film, and then use a sand bag to compact the surrounding to prevent air convection, so that the component A simple "greenhouse" is formed between the air cushion film and the air cushi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K9/08C08K9/00C08K3/34C04B40/02B29C48/92B29C55/28B29B9/06
CPCB29B9/06B29C48/92B29C55/28B29C2948/9259B29C2948/92704B29C2948/92895B29C2948/92904C04B40/0254C04B40/0263C08J5/18C08J2323/06C08K3/346C08K9/00C08K9/08C08L23/06
Inventor 许斌邹宇帆蒋玉芳
Owner 兴义市黔城商品混凝土有限公司