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A kind of composite microcapsule heat insulation mortar and its preparation method

A technology of composite microcapsules and heat-insulating mortar, which is applied in the field of building materials, can solve the problems of reduced bleeding rate, large slump loss, shortened setting time, etc., and achieves good high temperature resistance, little influence by thermal expansion and contraction, The effect of simple and convenient construction

Active Publication Date: 2021-06-11
广东泷耀保温材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional expansion agent or waterproofing agent has relatively strict requirements in terms of dosage, limitation and curing conditions. Due to the adaptability of cement and mortar, it is easy to cause large slump loss, reduced bleeding rate, and shortened setting time. And other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation method of the above-mentioned composite microcapsule heat-insulating mortar adopts the sol-gel method to prepare microcapsules coated with inorganic silica wall materials with different n-octadecane / and orthosilicate acetic acid mass percentages under different pH conditions. Phase-change temperature-controlled energy storage material; add corresponding weights of calcium sulfoaluminate, aluminum potassium sulfate, aluminum ammonium sulfate, curing accelerator, polypropylene fiber, rubber powder, inorganic gel Glue, sepiolite, brucite, titanium dioxide and vitrified microbeads are continuously stirred and mixed during the feeding process to form a semi-finished mortar; adding corresponding weights of magnesium oxide and hydroxypropylmethyl to the semi-finished mortar, Microsilica powder and polycrystalline quartzite are stirred and mixed; after drying, the finished composite microcapsule thermal insulation mortar is obtained.

[0037] The block copolymer...

Embodiment 1

[0044] The weight ratio of each raw material in the composite microcapsule heat insulation mortar is: calcium sulfoaluminate 2.7%, aluminum potassium sulfate 2.7%, aluminum ammonium sulfate 2.7%, curing accelerator 0.3%, polypropylene fiber 4%, rubber powder 7% %, inorganic gel 7.5%, hydroxypropyl 2%, titanium dioxide 5%, magnesium oxide 5%, silicon micropowder 3.6%, sepiolite 14.5%, microcapsule 6%, brucite 18%, vitrified microbeads 18%, polycrystalline quartz 1%.

Embodiment 2

[0046] The weight ratio of each raw material in the composite microcapsule heat insulation mortar is: 3% calcium sulfoaluminate, 3% aluminum potassium sulfate, 3% aluminum ammonium sulfate, 0.1% curing accelerator, 2.5% polypropylene fiber, 5% rubber powder %, inorganic gel 6%, hydroxypropyl 1%, titanium dioxide 6%, magnesium oxide 6%, silicon micropowder 3%, sepiolite 20%, microcapsule 9%, brucite 15.5%, vitrified microbeads 15.5%, polycrystalline quartz 1.4%.

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Abstract

The invention discloses a composite microcapsule heat-insulating mortar in the technical field of building materials and a preparation method thereof. The heat-insulating mortar includes microcapsules and self-healing building materials, and the raw materials of the self-healing building materials include calcium sulfoaluminate, calcium sulfoaluminate, Potassium aluminum sulfate, ammonium aluminum sulfate, curing accelerator, polypropylene fiber, rubber powder, inorganic gel, hydroxypropyl, titanium dioxide, magnesium oxide, silica powder, sepiolite, brucite, vitrified microspheres and more In this method, the microcapsule phase change temperature control energy storage material is firstly prepared, and then the microcapsule phase change temperature control energy storage material is added to the self-healing building material in turn, and continuously stirred, and the composite microstructure is obtained after drying. Capsule insulation mortar finished product. The invention has remarkable heat insulation and energy-saving effects when applied to iron sheet tile surfaces, floors, and inner and outer walls, and simultaneously has the function of crack self-healing, and can effectively control the early plastic shrinkage, dry shrinkage and non-structural properties of the heat-preservation mortar.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a composite microcapsule heat-insulating mortar and a preparation method thereof. Background technique [0002] With the rapid development of the economy, my country's construction industry is also developing rapidly, and the use of mortar has also increased greatly. However, during the pouring and hardening process of mortar, volume shrinkage will occur due to chemical shrinkage, cold shrinkage, and dry shrinkage. Moreover, the more cement and water used per unit, the larger the mortar volume, the faster the water evaporates, and the more obvious the shrinkage. Under normal circumstances, the shrinkage value per 1m³ of mortar is 0.04%-0.09%, which will lead to adverse consequences such as cracking, leakage, and loss of prestress in the mortar. [0003] In order to solve this problem, according to different mortar mix ratios, maintenance systems and restraint states,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10B01J13/02C04B111/28C04B111/34
CPCB01J13/02C04B28/10C04B2111/28C04B2111/343C04B2201/32C04B22/142C04B16/0633C04B24/24C04B22/00C04B24/026C04B22/06C04B22/14C04B14/06C04B14/042C04B22/064C04B14/22C04B2103/0071
Inventor 庞龙雨
Owner 广东泷耀保温材料科技有限公司
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