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Fluorgypsum-based self-leveling floor material and preparation method thereof

A gypsum-based, fluorogypsum technology, applied in the field of new building materials, can solve the problems of polluted soil and groundwater environment, poor water resistance and wear resistance, drying shrinkage, hardening shrinkage, etc., and achieve high volume energy storage density, good fluidity, The effect of small shrinkage

Inactive Publication Date: 2018-11-23
BEIJING NEW BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in my country, fluorine gypsum is mainly used as a cement retarder, and most of the fluorine gypsum is stored as a solid waste after a little neutralization treatment. Direct storage not only occupies land, but also pollutes the soil and groundwater environment.
[0004] At present, the base materials of self-leveling mortar in my country are mainly cement, resin coating, α hemihydrate gypsum, building gypsum, etc. There are few reports on self-leveling floor mortar with excellent performance developed from fluorine gypsum waste residue
However, cement-based self-leveling floor mortar is prone to drying shrinkage or hardening shrinkage during use; floor coatings often contain volatile organic compounds, which cannot truly achieve environmental protection. In addition, the material also has problems such as high cost and inconvenient transportation.
[0005] In addition, the existing gypsum-based self-leveling floor materials have low surface hardness after hardening. Due to the neutral or acidic slurry and poor water resistance and wear resistance, the application is limited

Method used

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  • Fluorgypsum-based self-leveling floor material and preparation method thereof
  • Fluorgypsum-based self-leveling floor material and preparation method thereof
  • Fluorgypsum-based self-leveling floor material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Fluorogypsum-based self-leveling floor materials are prepared as follows:

[0078] Step 1: Preparation of inorganic low-temperature phase-change energy storage and heat storage materials: pre-treat the packaging material (expanded perlite, 24 parts by weight) (after screening, place it in an oven for drying), put it into a 55°C water bath and continuously Stir (rotating speed is 6000rpm), utilize the capillary adsorption force of expanded perlite to mix the inorganic low-temperature phase change material (KAl(SO 4 ) 2 12H 2 O, 18 parts by weight) is adsorbed in its pore structure to make an inorganic low-temperature phase change energy storage heat storage material. Weigh 10 parts by weight of the inorganic low-temperature phase-change energy storage and heat storage material for use.

[0079] Step 2: The activator KAl(SO 4 ) 2 12H 2 0 is pulverized and ground to about 200 orders, and takes 2.78 parts by weight;

[0080] Step 3: Take 100 parts by weight of fluoro...

Embodiment 2

[0098] The method for preparing the fluorogypsum-based self-leveling floor material is the same as in Example 1, except that:

[0099] Fluorogypsum (74um) is 100 parts by weight, sulfoaluminate cement is 15 parts by weight, K 2 SO 4 2.78 parts by weight, 25 parts by weight of inorganic low-temperature phase change energy storage material, 0.8 parts by weight of polycarboxylate water reducer as water reducing agent, 3 parts by weight of redispersible latex powder, and 0.1 parts by weight of stabilizer Starvis 3003F , The filler is 60 parts by weight (70-90 mesh), and the water is 30 parts by weight.

[0100] The preparation of the fluorogypsum-based self-leveling floor mortar was the same as in Example 1.

[0101] The performance test of the fluorogypsum-based self-leveling mortar produced in Example 2 was carried out according to the test method described in Example 1, and the results are shown in Table 2 below:

[0102] Table 2

[0103]

Embodiment 3

[0105] The method for preparing the fluorogypsum-based self-leveling floor material is the same as in Example 1, except that:

[0106] Fluorogypsum (149um) is 100 parts by weight, sulfoaluminate cement is 24 parts by weight, acid activator is 12 parts by weight of potassium alunite mineral, inorganic low temperature phase change energy storage material is 15 parts by weight, pyrimidine resin water reducing The agent is 0.7 parts by weight, the redispersible latex powder is 2 parts by weight, the stabilizer Starvis 3003F is 0.07 parts by weight, the filler (70-90 mesh) is 50 parts by weight, and the water is 25 parts by weight. Among them, the acid activator potassium alunite mineral is calcined at 550°C for 2 hours after pretreatment, cooled at room temperature and then ground to about 200 mesh.

[0107] The preparation of the fluorogypsum-based self-leveling floor mortar is basically the same as in Example 1.

[0108] The performance test of the fluorogypsum-based self-level...

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Abstract

Disclosed is a fluorgypsum-based self-leveling floor material. The fluorgypsum-based self-leveling floor material is prepared from the following components in parts by weight: 100 parts of fluorgypsum, 15-30 parts of excitents, 5-35 parts of low-temperature phase-change energy storage and heat accumulation materials, 0.25-1 part of water reducer, 0-4 parts of latex powder, 0.02-0.12 part of stabilizer and 35-65 parts of fillers. The invention further discloses a preparation method of the fluorgypsum-based self-leveling floor material and fluorgypsum-based self-leveling floor mortar prepared from the fluorgypsum-based self-leveling floor material.

Description

technical field [0001] This application relates to but not limited to the technical field of new building materials, especially to but not limited to self-leveling floor materials, specifically to but not limited to a fluorogypsum-based self-leveling floor material and its preparation method, and a fluorogypsum-based self-leveling floor material Ping mortar. Background technique [0002] Fluorogypsum is an industrial waste residue discharged during the production of hydrofluoric acid, and its main component is CaSO 4 , the content is generally more than 90%, which is a resource available for use. The proportion of water-soluble fluorine in fluorogypsum is very small, indicating that the fluorine in fluorogypsum is mainly in the form of CaF which is difficult to dissolve in water. 2 It exists in a form with extremely low content and will not harm human health. At the same time, fluorine gypsum generally has no radioactive pollution. Therefore, it is safe and feasible to use...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/20C04B111/27C04B111/34C04B111/52C04B111/62
CPCC04B28/142C04B2111/00017C04B2111/00103C04B2111/00482C04B2111/20C04B2111/2038C04B2111/27C04B2111/34C04B2111/52C04B2111/62C04B2201/10C04B2201/32C04B2201/50C04B14/185C04B22/142C04B7/32C04B14/06C04B20/0076C04B2103/302C04B2103/0057C04B2103/0068C04B22/147C04B14/02
Inventor 王丽王鹏起武发德周建中王莹谭丹君
Owner BEIJING NEW BUILDING MATERIAL
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