阅读说明：本技术 一种多功能玻璃轻石及其制备方法 (Multifunctional glass pumice and preparation method thereof ) 是由 刘晋鲁 李捷 张明杰 邓列夫 于 2021-08-04 设计创作，主要内容包括：本发明一种多功能玻璃轻石及其制备方法,玻璃轻石的外表面、以及玻璃轻石的微孔隙的内壁上均固化有涂层。制备时,先烧结玻璃轻石并在烧结玻璃轻石的同时调配功能溶液；随后,将有调配好的功能溶液附着在烧结好的玻璃轻石表面；最后,将玻璃轻石上附着的功能溶液层静置常温固化,从而使得玻璃轻石的外表面和内空隙内壁上均形成有功能性涂层。本发明一种多功能玻璃轻石及其制备方法,通过附着于其表面的功能性涂层,可有效的实现不同的功能。(The invention relates to a multifunctional glass pumice and a preparation method thereof. During preparation, firstly sintering the glass pumice and preparing a functional solution while sintering the glass pumice; then, attaching the prepared functional solution to the surface of the sintered glass pumice; and finally, standing the functional solution layer attached to the glass pumice and curing at normal temperature, so that functional coatings are formed on the outer surface of the glass pumice and the inner wall of the inner gap. According to the multifunctional glass pumice and the preparation method thereof, different functions can be effectively realized through the functional coating attached to the surface of the multifunctional glass pumice.)

1. A multifunctional glass pumice is characterized in that: the outer surface of the glass pumice and the inner wall of the micropores of the glass pumice are all solidified with functional coatings.

2. The multifunctional glass pumice according to claim 1, wherein: the functional coating is an oleophilic organic layer or a conductive layer.

3. The multifunctional glass pumice according to claim 2, wherein: the volume ratio of each component of the lipophilic organic layer is as follows:

1000ml of absolute ethyl alcohol;

hexadecyl trimethyl phenyl silane, 50 ml;

0.1g/mol sodium hydroxide solution: 20 ml.

4. The multifunctional glass pumice according to claim 2, wherein: the conducting layer is a tin-antimony conducting compound layer or a graphite layer.

5. A preparation method of multifunctional glass pumice is characterized by comprising the following steps: the preparation method comprises the following steps:

step one, sintering glass pumice; and preparing functional solution while sintering the glass pumice;

step two, attaching the prepared functional solution to the surface of the sintered glass pumice;

and step three, curing, namely standing and curing the functional solution layer attached to the glass pumice, so that functional coatings formed by the functional solution are formed on the outer surface of the glass pumice and the inner wall of the inner gap.

6. The method for preparing the multifunctional glass pumice according to claim 5, wherein: and in the second step, spraying the functional solution on the surface of the glass pumice through a spray gun to form a functional coating.

7. The method for preparing the multifunctional glass pumice according to claim 5, wherein: and in the second step, the glass pumice is soaked into the functional solution and then fished out to realize the adhesion of the functional coating.

8. The method for preparing the multifunctional glass pumice according to claim 5, wherein: the functional solution is a lipophilic organic solution, and the lipophilic organic solution comprises the following components in percentage by volume:

1000ml of absolute ethyl alcohol;

hexadecyl trimethyl phenyl silane, 50 ml;

sodium hydroxide solution: 0.1g/mol, 20 ml.

9. The method for preparing the multifunctional glass pumice according to claim 5, wherein: the functional solution is a conductive solution, and the conductive solution comprises the following components in parts by weight:

500ml of absolute ethyl alcohol;

tin tetrachloride, 95 g;

antimony pentafluoride, 5 g;

2000-3000 ml of hydrochloric acid with the concentration of 10-50 mol/L;

during the preparation, firstly, the absolute ethyl alcohol is slowly added into the hydrochloric acid solution and is slowly stirred to form a mixed solvent, and then the stannic chloride and antimony pentafluoride stannum-antimony compound are added into the mixed solvent to be fully mixed and stirred, so that the stannic chloride and antimony pentafluoride form a conductive solution containing stannum-antimony conductive compound in a weak acidic combination environment.

10. The method for preparing the multifunctional glass pumice according to claim 9, wherein: and in the third step, the glass pumice with the conductive solution layer is sent into an oven and treated for 15-30 min at the drying temperature of 400-500 ℃, so that the conductive solution layer is solidified on the outer surface of the glass pumice and the inner wall of the micropores to form a conductive layer.

Technical Field

The invention relates to a glass pumice with multiple additional functions and a preparation method thereof.

Background

The glass pumice can be directly used as a filler to be laid on a paved road surface or below a green belt vegetation layer because the micropores of the glass pumice have the effects of filtering, storing water, draining and the like; meanwhile, special glass pumice is needed to realize different functional purposes. For example, chinese patent CN201310281284.1 "a foaming microporous glass pumice for removing odor and deodorizing and its preparation method", CN201610452136.5 "a glass pumice planting nutrient soil capable of slowly releasing phosphate fertilizer and its preparation method", and CN201310281273.3 "a foaming microporous glass pumice for chemical clarification and water filtration and its preparation method" applied by this company make the glass pumice obtain different functions by using different formulations, but thus different production lines and processes are required to produce glass pumice with different functional specifications, which undoubtedly greatly increases the production cost of enterprises.

Disclosure of Invention

The invention aims to overcome the defects and provide the multifunctional glass pumice and the preparation method thereof, and different functions can be effectively realized through the functional coating attached to the surface of the multifunctional glass pumice.

The purpose of the invention is realized as follows:

a multifunctional glass pumice is prepared through curing functional coatings on the external surface and internal walls of micropores of glass pumice.

The invention relates to a multifunctional glass pumice, wherein a functional coating is an oleophilic organic substance layer or a conductive layer.

The invention relates to a multifunctional glass pumice, wherein the volume ratio of each component of a lipophilic organic layer is as follows:

1000ml of absolute ethyl alcohol;

hexadecyl trimethyl phenyl silane, 50 ml;

0.1g/mol sodium hydroxide solution: 20 ml.

The invention relates to a multifunctional glass pumice, wherein a conductive layer is a tin-antimony conductive compound layer.

A preparation method of multifunctional glass pumice is characterized by comprising the following steps: the preparation method comprises the following steps:

step one, sintering glass pumice; and preparing functional solution while sintering the glass pumice;

step two, attaching the prepared functional solution to the surface of the sintered glass pumice;

and step three, curing, namely standing and curing the functional solution layer attached to the glass pumice, so that functional coatings formed by the functional solution are formed on the outer surface of the glass pumice and the inner wall of the inner gap.

The invention relates to a preparation method of a multifunctional glass pumice.

The invention relates to a preparation method of a multifunctional glass pumice.

The invention relates to a preparation method of multifunctional glass pumice, wherein the functional solution is a lipophilic organic solution, and the lipophilic organic solution comprises the following components in percentage by volume:

1000ml of absolute ethyl alcohol;

hexadecyl trimethyl phenyl silane, 50 ml;

sodium hydroxide solution: 0.1g/mol, 20 ml.

The invention relates to a preparation method of a multifunctional glass pumice, wherein a functional solution is a conductive solution, and the conductive solution comprises the following components in parts by weight:

500ml of absolute ethyl alcohol;

tin tetrachloride, 95 g;

antimony pentafluoride, 5 g;

2000-3000 ml of hydrochloric acid with the concentration of 10-50 mol/L;

during the preparation, firstly, the absolute ethyl alcohol is slowly added into the hydrochloric acid solution and is slowly stirred to form a mixed solvent, and then the stannic chloride and antimony pentafluoride stannum-antimony compound are added into the mixed solvent to be fully mixed and stirred, so that the stannic chloride and antimony pentafluoride form a conductive solution containing stannum-antimony conductive compound in a weak acidic combination environment.

The invention relates to a preparation method of a multifunctional glass pumice, which comprises the third step of sending the glass pumice attached with a conductive solution layer into an oven, and treating for 15-30 min at the drying temperature of 400-500 ℃ so that the conductive solution layer is solidified on the outer surface of the glass pumice and the inner wall of micropores to form a conductive layer.

Compared with the prior art, the invention has the beneficial effects that:

the invention has the advantages that coatings with different functions, such as lipophilic organic coatings, are attached to the outer surface of the glass pumice and the inner wall of the micropores, and the strong adsorption on oil stain molecules is realized by utilizing the similar intermiscibility characteristic of organic matters, so that the filtering effect on oil stains is realized; for example, the conductive organic matter coating has a conductive function, and micro-current secondary microorganisms can be introduced to carry out biological reduction treatment on sewage while filtering, so that the purification capacity is improved.

Meanwhile, the main material glass powder of the oleophilic glass pumice is formed by grinding various waste glasses of glass production enterprises, so that the closed-loop production of the whole glass industry is realized, the additional expenditure for treating the waste glass is avoided, the waste is changed into valuable through the manufacturing of the glass pumice, and the added value of the whole glass industry is greatly increased.

Detailed Description

Example one (oil removal):

the invention relates to a multifunctional glass pumice with an oil stain adsorption function, which comprises the following preparation processes:

firstly, sintering to obtain the glass pumice, wherein the step is similar to the sintering mode of the conventional glass pumice;

the glass pumice mainly comprises the following components in percentage by weight: glass powder: 90-95, marble powder: 2-5, alumina powder: 1-3, calcite powder: 1-3; wherein the fineness of the glass powder is 40-100 μm, the fineness of the marble powder is 20-40 μm, and the fineness of the alumina powder is 20-40 μm; the fineness of the calcite powder is 20-40 mu m.

The glass pumice obtained under different mixture ratio combinations can have the following performance relationship:

serial number	Monomer Dry Density (g/cm)2）	Monomer mass water retention (%)	Compressive strength of monomer (MPa)	Barrel pressure intensity (MPa)
					1	0.2~0.4	≥40	0.9~1.5	≥0.08
2	0.3~0.5	30~40	2.5~3.0	≥0.25
					3	0.4~0.6	20~35	5.0~5.5	≥0.35
4	0.5~0.7	10~25	10.0~12.0	≥0.50
					5	0.6~0.8	11.0~13.0	11.0~13.0	≥1.0

Meanwhile, when the glass pumice is sintered, organic solution is prepared:

the organic solution comprises the following components in percentage by volume:

absolute ethyl alcohol (C)₂H₆O），1000ml；

Hexadecyl trimethyl phenyl silane, 50 ml;

sodium hydroxide solution: 0.1g/mol, 20 ml;

the components are mixed and stirred uniformly to form an organic solution which is in a viscous liquid state.

Subsequently, an organic solution is attached to the surface of the sintered glass pumice.

There are two attachment methods:

firstly, spraying organic solution on the tiled glass pumice by a spray gun, so that the organic solution is sprayed on the surface of the glass pumice and the inner wall of partial micropores, and meanwhile, in the spraying process, in order to ensure that the spraying is more uniform, the glass pumice can be repeatedly turned over or rolled, for example, the organic solution is continuously sprayed when the glass pumice is in a vibration or rolling state by a vibrating screen or a boiling bed, so that the spraying is more uniform;

secondly, the glass pumice is soaked in the organic solution and taken out after about one minute, compared with a spraying mode, the soaking mode has low efficiency and insufficient surface uniformity, and the viscous organic solution attached to the surface of the glass pumice has thicker thickness, but the glass pumice has the advantage that an organic solution layer can be completely formed on the inner wall of the micropore, so that the subsequent oil removing capability is improved.

And finally, the glass pumice attached with the organic solution is flatly laid on a cooling platform and is stood at normal temperature, so that the organic solution is solidified on the outer surface of the glass pumice and the inner wall of the micropores to form a lipophilic organic layer.

When purifying and absorbing oil, the oil stain can be effectively adsorbed by the lipophilicity of the organic solution layer solidified on the outer surface of the glass pumice; meanwhile, after the glass pumice absorbs oil stains under full load, the glass pumice can be heated to more than 140 degrees, so that the oil stains are evaporated, collected and treated, and the treated glass pumice can be recycled again.

Example two (conductive):

the invention relates to a multifunctional glass pumice with a conductive function, which comprises the following preparation processes:

firstly, sintering to obtain the glass pumice, wherein the step is similar to the sintering mode of the conventional glass pumice;

meanwhile, when the glass pumice is sintered, preparing a conductive solution:

the conductive solution comprises the following components in percentage by weight:

absolute ethyl alcohol (C)₂H₆O），500ml；

Tin tetrachloride (SnCl)₄），95g；

Antimony pentafluoride (SbF)₅），5g；

2000-3000 ml of hydrochloric acid (HCl) with the concentration of 10-50 mol/L;

firstly, adding anhydrous ethanol slowly into a hydrochloric acid solution, slowly stirring to form a mixed solvent, then adding tin tetrachloride and antimony pentafluoride tin antimony compound into the mixed solvent, fully mixing, and stirring to enable the tin tetrachloride and the antimony pentafluoride to form a conductive solution containing a tin antimony conductive compound in a weak acidic combination environment.

Subsequently, a conductive solution is attached to the surface of the sintered glass pumice.

Similarly, there are two ways of attaching the conductive solution:

firstly, spraying a conductive solution on the tiled glass pumice by a spray gun, so that the conductive solution is sprayed on the surface of the glass pumice and the inner wall of partial micropores, and meanwhile, in the spraying process, in order to ensure that the spraying is more uniform, the glass pumice can be repeatedly turned over or rolled, for example, the glass pumice is continuously sprayed with an organic solution in a vibrating or rolling state by a vibrating screen or a boiling bed, so that the spraying is more uniform;

soaking the glass pumice in the conductive solution, taking out after about one minute, wherein the soaking mode has low efficiency and insufficient surface uniformity compared with a spraying mode, and the conductive solution layer attached to the surface of the glass pumice has thicker thickness.

And finally, sending the glass pumice attached with the conductive solution layer into an oven, and drying at the temperature of 450 ℃ for 20min to ensure that the conductive solution is solidified on the outer surface of the glass pumice and the inner wall of the micropores to form a conductive layer.

Example three (conductive):

the invention relates to a multifunctional glass pumice with a conductive function, which comprises the following preparation processes:

firstly, sintering to obtain the glass pumice, wherein the step is similar to the sintering mode of the conventional glass pumice;

meanwhile, preparing graphite powder while sintering the glass pumice;

and adding the sintered glass pumice into graphite powder, mixing, and feeding the glass pumice with the surface coated with the graphite powder into a heating furnace again to heat the glass pumice and sinter the surface of the glass pumice to form a graphite layer.

In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.