CN213266305U - Reinforced fiber cement - Google Patents
Reinforced fiber cement Download PDFInfo
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- CN213266305U CN213266305U CN202020413899.0U CN202020413899U CN213266305U CN 213266305 U CN213266305 U CN 213266305U CN 202020413899 U CN202020413899 U CN 202020413899U CN 213266305 U CN213266305 U CN 213266305U
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Abstract
The utility model provides a reinforced fiber cement, which comprises a basalt fiber base material and cement; the basalt fiber base materials are distributed in the cement in a disorderly way; the basalt fiber base material comprises basalt fibers, a binder and a prepreg. The high-strength high-toughness high-strength steel has high strength, good toughness and good durability and corrosion resistance; the raw materials are environment-friendly, the basalt fiber is directly melted and drawn to form the basalt fiber, the product is natural and environment-friendly, and the carbon dioxide emission in the smelting process is greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of fibre combined material technique and specifically relates to a reinforcing fiber cement is related to.
Background
The basalt fiber is a natural environment-friendly inorganic fiber which is prepared by melting and drawing basalt ore widely existing in nature as a unique raw material at high temperature, has the characteristics of low temperature resistance, no long-term creep, good thermal stability, high tensile strength, low elongation and the like, and is widely applied to the fields of military affairs, automobiles, petrochemical industry, traffic buildings, security protection and the like.
The cement-based material which takes cement as a main cementing material is called a cement-based material, the cement-based material generally has higher compressive strength but larger brittleness, and is easy to crack under the action of stress, in the prior art, the toughness of the cement-based material is generally improved by adding some toughening components such as fibers, but the cement-based material added with the fibers is generally difficult to stir, and the practical use difficulty is increased.
In conclusion, the process of adding basalt fiber materials into composite base materials such as cement and the like is not mature, the strength is low, the toughness and the crack resistance are poor, and the application of utilizing the fiber to enhance the performance of the composite material is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reinforced fiber cement which is used for solving at least one technical problem and has high strength, good toughness, good durability and corrosion resistance; the raw materials are environment-friendly, the basalt fiber is directly melted and drawn to form the basalt fiber, the product is natural and environment-friendly, and the carbon dioxide emission in the smelting process is greatly reduced.
The utility model also aims at providing a preparation method of reinforcing fiber cement, its process flow is simple, low in production cost, and the preparation process does not have chemical change, does not have the waste residue to discharge, and the water consumption is low, the production process environmental protection.
The embodiment of the utility model is realized like this:
a reinforced fiber cement includes basalt fiber base material and cement.
The basalt fiber base materials are distributed in the cement in a disorderly mode.
The basalt fiber base material comprises basalt fibers, a binder and a prepreg.
In a preferred embodiment of the present invention, the binder of the reinforced fiber cement is coated on the surface of the basalt fiber; the prepreg is coated on the surface of the adhesive.
In a preferred embodiment of the present invention, said basalt fiber of said reinforced fiber cement is a chopped fiber of 5-30 mm.
In a preferred embodiment of the present invention, the binder of the reinforced fiber cement is hydrophobic type binder cement; the prepreg adopts epoxy resin emulsion.
The utility model also provides a method in preparation of reinforcing fiber cement as aforementioned, including following step
S1, preparing a basalt fiber base material; s2, uniformly adding the basalt fiber base material into cement according to a proportion.
In a preferred embodiment of the present invention, the step of preparing the basalt fiber base material in S1 includes S11 of melting and drawing a single basalt ore into a continuous fiber at 1300-; s12, cutting the continuous fibers into chopped fibers of 5-30 mm; s13, the chopped fibers stay in the binder for 1-20S, and are taken out and placed into prepreg for stay for 1-20S; and S14, drying the soaked chopped fibers to enable the binder and the prepreg to be completely adhered to the surfaces of the basalt chopped fibers to obtain the basalt fiber base material.
In a preferred embodiment of the present invention, the step of adding the basalt fiber base material into the cement uniformly in proportion in S2 includes S21, adding 7-8 kg of basalt fiber base material into each cubic cement; and S22, stirring and uniformly mixing.
The embodiment of the utility model provides a beneficial effect is:
the binder and the prepreg are used for treating the basalt chopped fibers, the basalt chopped fibers are used as a basalt fiber base material for mixing cement, the fiber bundling property is reduced, the basalt chopped fibers can be dispersed into monofilaments and enter various parts in the cement, so that the basalt fibers and the cement have better compatibility, the area without the reinforcing fibers in the cement base material is greatly reduced, and the generation and the extension of cement fine cracks are effectively prevented.
The working procedures of basalt drawing and fiber chopping are controlled, the dispersibility and the chopping rate of the chopped basalt are guaranteed, the use effect of the basalt chopped fiber in cement is greatly improved through adjustment of technical parameters and multiple tests and use in a construction site, and the use quality requirement is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
The reinforced fiber cement and the preparation method of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic structural view of a basalt fiber base material of the reinforced fiber cement of the present invention;
fig. 2 is a schematic diagram of the distribution structure of the basalt fiber base material in the cement of the reinforced fiber cement of the present invention.
In the figure: 1-a basalt fiber base stock; 2-prepreg; 3-a binder; 4-basalt fibers; 5-cement.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
As shown in fig. 1 to 2, the present invention provides a reinforced fiber cement, which comprises a basalt fiber base material 1 and cement 5.
The basalt fiber base stocks 1 are distributed in the cement 5 in a disorderly way.
The basalt fiber base material 1 comprises basalt fibers 4, a binder 3 and a prepreg 2.
The binder 3 is coated on the surface of the basalt fiber 4.
The prepreg 2 is coated on the surface of the binder 3.
The basalt fibers 4 are chopped fibers with the diameter of 5-30 mm.
The formula of the binder 3 comprises, by weight, 22-28 parts of high-alumina cement, 12-16 parts of fly ash, 60-64 parts of quartz sand, 2-6 parts of polymer emulsion, 0.1-2 parts of a water repellent, 0.1-2 parts of carboxymethyl cellulose ether and 0.1-2 parts of modified lignin.
The basalt fiber 4 is treated by the binder 3, so that the basalt fiber 4 has the capability of being rapidly combined with the prepreg 2, the prepreg 2 is assisted to be smoothly adhered to the surface of the basalt fiber 4, and the surfaces of the prepreg 2 and the basalt fiber 4 can be organically combined.
The formula of the prepreg 2 comprises, by weight, 2-5 parts of epoxy resin emulsion, 0.2-2 parts of silane coupling agent, 0.2-5 parts of surfactant and 50-95 parts of deionized water.
The prepreg 2 can enable the basalt fibers 4 to have higher strength and to be rapidly fused with cement 5, and abrasion of the basalt fibers 4 is reduced.
The utility model also provides a method for preparing the reinforced fiber cement, which comprises the following steps
S1, preparing a basalt fiber base material 1;
s2, uniformly adding the basalt fiber base material 1 into the cement 5 according to the proportion.
The step of preparing the basalt fiber base material 1 in S1 includes
S11, melting and drawing the basalt into continuous fiber at 1300-1600 ℃;
s12, cutting the continuous fibers into chopped fibers of 5-30 mm;
s13, the chopped fibers stay for 1 to 20 seconds in the binder 3, and are taken out and placed into the prepreg 2 to stay for 1 to 20 seconds;
and S14, drying the soaked chopped fibers to enable the binder 3 and the prepreg 2 to be completely adhered to the surfaces of the basalt chopped fibers to obtain the basalt fiber base material 1.
The fiber water content of the cement 5 is controlled below 0.1%, and the bonding agent 3 and the prepreg 2 are converted into polymerization, crosslinking and film forming after being heated and melted, so that the performance of the cellosilk is improved. The drying process should satisfy the following requirements: preheating temperature and time; drying temperature and time; thirdly, controlling air quantity and air speed; fourthly, controlling the humidity of the drying chamber; fifthly, setting the thickness and the arrangement position of the fiber filaments.
S2, the step of uniformly adding the basalt fiber base stock 1 into the cement 5 according to the proportion comprises
S21, adding 7-8 kg of basalt fiber base material 1 into each cubic meter of cement 5;
and S22, stirring and uniformly mixing.
Because the basalt fiber 4 has low flexibility, the process route of the fiber should be kept as straight as possible to avoid excessive bending. The pulling roll of the chopping machine is preferably made of a material having a high coefficient of friction with the fibers, and the fiber guide member is preferably made of a material having a low coefficient of friction with the fibers and being less likely to adhere to the fibers. The chopped quality requirement is as follows: dispersing; ② short cutting rate. The working procedures of basalt drawing and fiber chopping are controlled, and the dispersity and the chopping rate of the chopped fibers are ensured.
Example 1
The method for preparing the reinforced fiber cement comprises the following steps:
(1) melting and drawing the single basalt ore into continuous fibers at the temperature of 1500 ℃;
(2) chopping the continuous fibers by using a conventional chopping mode to obtain chopped fibers with the length of 5-30 mm;
(3) preparing 25 parts of high alumina cement, 15 parts of fly ash, 62 parts of quartz sand, 5 parts of polymer emulsion, 0.5 part of water repellent, 0.2 part of carboxymethyl cellulose ether and 0.2 part of modified lignin according to weight percentage to obtain hydrophobic bonding mucilage;
(4) preparing 3 parts of epoxy resin emulsion, 1 part of silane coupling agent, 1 part of surfactant and 95 parts of deionized water according to the weight percentage to obtain epoxy resin emulsion prepreg 2;
(5) the chopped fibers stay in hydrophobic bonding mucilage for 10s, are taken out and are placed into epoxy resin emulsion prepreg 2 to stay for 10 s;
(6) drying the soaked chopped fibers at 90-95 ℃ to ensure that the binder 3 and the prepreg 2 are completely adhered to the surfaces of the basalt chopped fibers to obtain a basalt fiber base material 1;
(7) adding 7 kilograms of basalt fiber base stock 1 into each cubic meter of cement 5;
(8) stirring and mixing uniformly.
Example 2
The method for preparing the reinforced fiber cement comprises the following steps:
(1) melting and drawing the single basalt ore into continuous fibers at the temperature of 1500 ℃;
(2) chopping the continuous fibers by using a conventional chopping mode to obtain chopped fibers with the length of 5-30 mm;
(3) preparing 26 parts of high alumina cement, 13 parts of fly ash, 62 parts of quartz sand, 6 parts of polymer emulsion, 2 parts of water repellent, 2 parts of carboxymethyl cellulose ether and 2 parts of modified lignin according to weight percentage to obtain hydrophobic bonding mucilage;
(4) preparing 5 parts of epoxy resin emulsion, 2 parts of silane coupling agent, 5 parts of surfactant and 88 parts of deionized water according to weight percentage to obtain epoxy resin emulsion prepreg 2;
(5) the chopped fibers stay in hydrophobic bonding mucilage for 20s, are taken out and are placed into an epoxy resin emulsion prepreg 2 to stay for 20 s;
(6) drying the soaked chopped fibers at 90-95 ℃ to ensure that the binder 3 and the prepreg 2 are completely adhered to the surfaces of the basalt chopped fibers to obtain a basalt fiber base material 1;
(7) adding 8 kilograms of basalt fiber base stock 1 into each cubic meter of cement 5;
(8) stirring and mixing uniformly.
Through the adjustment of technical parameters and multiple tests and use in a construction site, the use effect of the basalt chopped fiber in the cement 5 is greatly improved, and the use quality requirement is met.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The reinforced fiber cement is characterized by comprising a basalt fiber base material and cement;
the basalt fiber base materials are distributed in the cement in a disorderly way;
the basalt fiber base material comprises basalt fibers, a binder layer and a prepreg layer;
the adhesive layer is coated on the surface of the basalt fiber;
and the prepreg layer is coated on the surface of the adhesive layer.
2. The reinforced fiber cement of claim 1,
the basalt fibers are chopped fibers with the diameter of 5-30 mm.
3. The reinforced fiber cement of claim 1,
the adhesive layer adopts hydrophobic adhesive mucilage;
the prepreg layer adopts epoxy resin emulsion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020413899.0U CN213266305U (en) | 2020-03-27 | 2020-03-27 | Reinforced fiber cement |
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| CN202020413899.0U CN213266305U (en) | 2020-03-27 | 2020-03-27 | Reinforced fiber cement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111205028A (en) * | 2020-03-27 | 2020-05-29 | 中北玄武科技发展有限公司 | Reinforced fiber cement and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111205028A (en) * | 2020-03-27 | 2020-05-29 | 中北玄武科技发展有限公司 | Reinforced fiber cement and preparation method thereof |
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