Graphene oxide-based insulating mortar and preparation method thereof

A thermal insulation mortar and graphene-based technology, applied in the field of construction, can solve the problems of poor thermal performance and durability of thermal insulation mortar, and achieve the effects of remarkable technological progress, good mechanical properties and durability, and good mechanical properties.

Inactive Publication Date: 2018-04-20
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a graphene oxide-based thermal insulation mortar and a preparation method thereof. The graphene oxide-based thermal insulation mortar and its preparation method should solve the thermal insulation problem in the prior art. Technical Problems of Poor Thermal Performance and Durability of Mortar

Method used

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  • Graphene oxide-based insulating mortar and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of graphene oxide-based thermal insulation mortar:

[0021] Disperse 0.5% graphene oxide in water equal to the total dry weight of mortar, and then prepare dry powder according to the following mass percentage raw materials: cement 70%, heavy calcium carbonate 24%, rubber powder 2%, hydroxypropyl methylcellulose 1 %, wood fiber 1.0%, polypropylene fiber 1.5%. Add the mixed dry powder to the graphene oxide dispersion, and stir at a constant speed for 5-10 minutes to obtain a graphene oxide-based thermal insulation mortar, which can be applied to the wall.

Embodiment 2

[0023] Preparation of graphene oxide-based thermal insulation mortar:

[0024] Disperse 1% graphene oxide in water equal to the total dry weight of mortar, and then prepare dry powder according to the following mass percentage raw materials: cement 70%, heavy calcium carbonate 24%, rubber powder 2%, hydroxypropyl methylcellulose 1 %, wood fiber 1%, polypropylene fiber 1%. Add the mixed dry powder to the graphene oxide dispersion, and stir at a constant speed for 5-10 minutes to obtain a graphene oxide-based thermal insulation mortar, which can be applied to the wall. The graphene oxide-based thermal insulation mortar prepared in embodiment 2 is inspected as follows after hardening:

[0025] Test items

Embodiment 3

[0027] Preparation of graphene oxide-based thermal insulation mortar:

[0028] Disperse 5% graphene oxide in water equal to the total dry weight of mortar, and then prepare dry powder according to the following mass percentage raw materials: glass microspheres 5%, cement 60%, heavy calcium carbonate 24%, rubber powder 2%, hydroxypropyl 1% methyl cellulose, 1% wood fiber, 2% polypropylene fiber. Add the mixed dry powder to the graphene oxide dispersion, and stir at a constant speed for 5-10 minutes to obtain a graphene oxide-based thermal insulation mortar, which can be applied to the wall.

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Abstract

The invention provides graphene oxide-based insulating mortar which is prepared from the following raw materials and water: the raw materials include graphene oxide, glass beads, cement, ground calcium carbonate, latex powder, hydroxypropyl methyl cellulose, wood fibers and polypropylene fibers. The invention also provides a preparation method of the graphene oxide-based insulating mortar. The preparation method comprises the following steps: dispersing graphene oxide in water; then adding mixed dry powder of glass beads, cement, ground calcium carbonate, latex powder, hydroxypropyl methyl cellulose, wood fibers and polypropylene fibers into the graphene oxide dispersion liquid; and uniformly stirring the mixture for 5-10min at a uniform speed to obtain the graphene oxide-based insulatingmortar. As the glass beads are replaced fully or massively by a small doping amount of graphene oxide, the inorganic insulating mortar has relatively good mechanical property and durability while ensures the insulating effect, so that the performance of the insulating mortar is integrally improved.

Description

technical field [0001] The invention belongs to the field of construction and relates to a construction material, in particular to a graphene oxide-based thermal insulation mortar and a preparation method thereof. Background technique [0002] In recent years, with the continuous acceleration of urbanization in my country and the increasing number of housing construction projects, the problem of building energy consumption has become prominent. In order to effectively solve this problem, external wall insulation materials have been widely used. Vitrified microbead thermal insulation mortar is a new type of inorganic thermal insulation mortar material used in external wall insulation, and is currently commonly used in building surface insulation. The thermal insulation mortar is made of vitrified microbeads or expanded perlite as lightweight aggregate, cement as gelling agent, and some modified additives. However, vitrified microbeads or expanded perlite are easily broken du...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00508C04B2201/20C04B2201/32C04B2201/50C04B14/28C04B18/22C04B18/26C04B16/0633C04B24/383C04B14/024
Inventor 沈淑玲杨俊和
Owner UNIV OF SHANGHAI FOR SCI & TECH
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