Microcapsule water permeable brick and preparation method thereof

A technology of microcapsules and permeable bricks, which is applied in the field of permeable bricks for municipal construction, which can solve the problems of uneven voids, sticky stagnation, and easy agglomeration of the mixture, and achieve optimized pore distribution, improved water permeability, and good response environmental effects

Inactive Publication Date: 2017-07-25
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since resin is mostly used as the bonding material, the mixture after mixing is relatively viscous. On the one hand, it is prone to agglomeration, resulting in uneven voids in the mixture in the mold; Phenomenon, the mold cannot be completely filled
The existence of the above problems not only affects the water permeability and flexural strength of permeable bricks, but also causes waste of raw materials, which seriously restricts the production and use of permeable bricks

Method used

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  • Microcapsule water permeable brick and preparation method thereof
  • Microcapsule water permeable brick and preparation method thereof
  • Microcapsule water permeable brick and preparation method thereof

Examples

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Embodiment 1

[0027] A microcapsule permeable brick and a preparation method thereof, comprising: a film-coated aggregate, a bonding substance, a curing agent and a solvent.

[0028] The film-coated aggregate uses natural quartz sand with a particle size of 0.1-0.3 mm, the film-covered resin uses bisphenol A epoxy resin E12 (softening point is 85-95 °C, average molecular weight is 1400), and the solvent uses hexane ( The boiling point is 68.7°C).

[0029] a. Heat the natural quartz sand with a particle size of 0.1-0.3mm to 150°C, put the hot sand and resin into the sand mixer for coating for 1min according to the mass ratio, mix evenly and add the hardener urotropine aqueous solution, When the sand temperature drops, add additive calcium stearate and mix evenly, and the molding sand is unloaded from the sand mixer, further crushed and cooled, and then sieved;

[0030] B, select modified epoxy curing agent T-31, adopt interfacial polymerization method, 100 parts of curing agent correspond t...

Embodiment 2

[0039] A microcapsule permeable brick and a preparation method thereof, comprising: a film-coated aggregate, a bonding substance, a curing agent and a solvent.

[0040] The coated aggregate uses natural quartz sand with a particle size of 0.1-0.3 mm, the coated resin uses bisphenol A epoxy resin E12 (softening point is 85-95 °C, average molecular weight is 1400), and the solvent uses trifluoro Acetic acid (boiling point 71.1°C)

[0041] a. Heat the natural quartz sand with a particle size of 0.1-0.3mm to 150°C, put the hot sand and resin into the sand mixer for coating for 1min according to the mass ratio, mix evenly and add the hardener urotropine aqueous solution, When the sand temperature drops, add additive calcium stearate and mix evenly, and the molding sand is unloaded from the sand mixer, further crushed and cooled, and then sieved;

[0042] B, select modified epoxy curing agent T-31, adopt interfacial polymerization method, 100 parts of curing agent correspond to 3 p...

Embodiment 3

[0051] A microcapsule permeable brick and a preparation method thereof, comprising: a film-coated aggregate, a bonding substance, a curing agent and a solvent.

[0052] The film-coated aggregate uses natural quartz sand with a particle size of 0.1-0.3 mm, the film-covered resin uses bisphenol A epoxy resin E12 (softening point is 85-95 °C, average molecular weight is 1400), and the solvent uses hexane ( The boiling point is 68.7°C)

[0053] a. Heat the natural quartz sand with a particle size of 0.1-0.3mm to 150°C, put the hot sand and resin into the sand mixer for coating for 1min according to the mass ratio, mix evenly and add the hardener urotropine aqueous solution, When the sand temperature drops, add additive calcium stearate and mix evenly, and the molding sand is unloaded from the sand mixer, further crushed and cooled, and then sieved;

[0054] b, select modified epoxy curing agent H-113, adopt interfacial polymerization method, 100 parts of curing agent correspond t...

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Abstract

The invention discloses a microcapsule water permeable brick and a preparation method thereof. The microcapsule water permeable brick is prepared from membrane laminated aggregate, a bonding substance, a curing agent and a solvent, and is characterized in that the membrane laminated aggregate adopts a thermal-process solid resin laminated membrane; the bonding substance is epoxy resin; the curing agent is an epoxy curing agent; the solvent is a high-boiling-point and low-toxin solvent; the bonding substance and the curing agent take a microcapsule as a carrier. The preparation method comprises the following seven steps: laminating the aggregate, preparing the microcapsule, mixing the membrane laminated aggregate with the microcapsule, distributing materials, heating to release reactants in the microcapsule, pressing and molding, and curing. According to the microcapsule water permeable brick, the microcapsule is used as the carrier of the bonding substance and the curing agent and the releasing time can be controlled; an effective solution way is provided for a problem that mixtures are stuck in a production process of the water permeable brick; meanwhile, the solvent is added so that a good reaction environment is provided and the water permeable performance of the water permeable brick can be optimized.

Description

technical field [0001] The invention relates to a microcapsule permeable brick and a preparation method thereof, belonging to the technical field of permeable bricks for municipal construction. Background technique [0002] Since the beginning of summer in 2016, many places in the north and south of my country have been hit by heavy rain. Taking Wuhan as an example, from 20:00 on June 30 to 10:00 on July 6, the current round of heavy rainfall recorded by the Wuhan National Basic Meteorological Station has fallen by 560.5 millimeters, breaking the record high since Wuhan’s own meteorological records. . During this period, in Hubei Province alone, 11.6285 million people in 80 counties (cities, districts) in 17 cities (prefectures, directly administered cities, and forest areas) were affected by disasters, 48 ​​people died and 7 people were missing, and 524,900 people were urgently relocated. 21,000 houses collapsed due to the disaster, 10.966 million hectares of crops were a...

Claims

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Application Information

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IPC IPC(8): C04B26/14C04B20/10
CPCC04B20/1029C04B20/1037C04B26/14C04B14/06C04B24/121C04B24/122
Inventor 王啸夫张雄王浩任刘恒耿莉萍
Owner TONGJI UNIV
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