Basalt fiber composite material, preparation method thereof and basalt fiber product

Abstract

The invention relates to a basalt fiber composite material, a preparation method thereof and a basalt fiber product. The basalt fiber composite material comprises a substrate layer, a light-emitting layer, a fiber layer and a surface layer which are arranged in a stacked mode, the light-emitting layer comprises light-emitting powder and first resin, the fiber layer comprises mixed weaving fibers of basalt fibers and organic fibers and second resin, the mixed weaving fibers are of a hole structure, and the mass ratio of the basalt fibers to the organic fibers is (2-4): 1. The luminous powder in the luminous layer emits light through the fiber layer by controlling the fiber layer to have a hole structure; meanwhile, basalt fibers and organic fibers are mixed and woven into mixed woven fibers, the mass ratio of the basalt fibers to the organic fibers is controlled, the color and texture of the basalt fibers can be shown, the appearance is good, the composite strength of the mixed woven fibers and the second resin can be effectively improved, and the layering phenomenon is avoided under the condition of 90 DEG C; all the layers interact with one another, so that the weather resistance of the basalt fiber composite material is relatively good.

Description

Technical Field

[0001] The present application relates to the field of materials, and in particular to a basalt fiber composite material and a preparation method thereof, and a basalt fiber product. Background Art

[0002] Basalt fiber fabrics have a unique texture and can be used to prepare automotive exterior parts, giving them unique decorative properties. When a car is driving at night or temporarily parked, the luminous automotive exterior parts can serve as a warning. At the same time, since cars are often exposed to the outdoors, automotive exterior parts are required to have good weather resistance. However, no automotive exterior parts made of luminous basalt fiber fabrics have been found, and the weather resistance of traditional basalt fiber products is poor.

[0003] Therefore, it is necessary to improve the traditional technology. Summary of the invention

[0004] Based on this, the present application provides a basalt fiber composite material that is luminous, has a good appearance, and has good weather resistance, a preparation method thereof, and a basalt fiber product.

[0005] The technical solution of this application to solve the above technical problems is as follows.

[0006] A first aspect of the present application provides a basalt fiber composite material, comprising a stacked base layer, a luminous layer, a fiber layer and a surface layer, the luminous layer comprising luminous powder and a first resin, the fiber layer comprising a mixed fiber of basalt fiber and organic fiber and a second resin, the mixed fiber having a pore structure, and a mass ratio of the basalt fiber to the organic fiber being 2 to 4:1.

[0007] In some embodiments, in the basalt fiber composite material, the diameters of the basalt fiber and the organic fiber are independently selected from 10 μm to 14 μm.

[0008] In some embodiments, in the basalt fiber composite material, the mass ratio of the mixed fiber to the second resin is 2-4:1.

[0009] In some of the embodiments, in the basalt fiber composite material, the diameter of the hole structure is 0.3 mm to 0.5 mm.

[0010] In some embodiments, in the basalt fiber composite material, the fiber layer satisfies at least one of the following characteristics:

[0011] (1) The organic fiber includes at least one of PET fiber, PAN fiber, polyamide fiber, polypropylene fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, PBO fiber, PBI fiber and PI fiber;

[0012] (2) the second resin comprises at least one of epoxy resin, polyurethane resin, unsaturated polyester resin and acrylate;

[0013] (3) The thickness of the fiber layer is 0.2-0.4 mm.

[0014] In some embodiments, in the basalt fiber composite material, the light-emitting layer satisfies at least one of the following characteristics:

[0015] (1) The first resin includes at least one of polyurethane and acrylate;

[0016] (2) The luminescent powder includes an organic long afterglow material;

[0017] (3) The luminescent powder is doped with at least one of Eu and Dy;

[0018] (4) The luminescent powder includes SrAl2O4:Eu,Dy and Sr4Al 14 O 25 : At least one of Eu, Dy;

[0019] (5) The particle size of the luminescent powder is 20 μm to 80 μm;

[0020] (6) The thickness of the light-emitting layer is 0.1-0.4 mm.

[0021] In some of the embodiments, in the basalt fiber composite material, the base layer includes a third resin and a pigment, and the third resin includes an epoxy resin.

[0022] In some of the embodiments, in the basalt fiber composite material, the surface layer includes at least one of an aliphatic epoxy resin and a vinyl resin.

[0023] In some embodiments, in the basalt fiber composite material, the surface layer satisfies at least one of the following characteristics:

[0024] (1) The surface layer further comprises an ultraviolet absorber;

[0025] (2) The thickness of the surface layer is 0.4-0.8 mm.

[0026] A second aspect of the present application provides a method for preparing a basalt fiber composite material, comprising the following steps:

[0027] Mixing the luminescent powder and the first resin to prepare a luminescent powder mixture;

[0028] Mixing basalt fiber and organic fiber to prepare mixed fiber; the mixed fiber has a hole structure, and the mass ratio of the basalt fiber to the organic fiber is 2-4:1;

[0029] Mixing the mixed fiber and a second resin to prepare a mixed fiber prepreg;

[0030] The luminescent powder mixture and the mixed fiber prepreg are sequentially arranged on one side of the base layer, and a luminescent layer and a fiber layer are sequentially formed on one side of the base layer after being cured;

[0031] A surface layer is formed on a side of the fiber layer away from the light-emitting layer.

[0032] In some of the embodiments, in the method for preparing the basalt fiber composite material, the curing temperature is 160° C. to 170° C., and the curing time is 10 min to 30 min.

[0033] A third aspect of the present application provides a basalt fiber product, including the above-mentioned basalt fiber composite material or the basalt fiber composite material prepared by the above-mentioned preparation method.

[0034] In some of these embodiments, the basalt fiber product comprises an automotive exterior part.

[0035] Compared with the prior art, the basalt fiber composite material of the present application has the following beneficial effects:

[0036] The basalt fiber composite material of the present application includes a stacked base layer, a luminous layer, a fiber layer and a surface layer. The luminous powder in the luminous layer can emit light through the fiber layer by controlling the hole structure of the fiber layer. At the same time, the fiber layer can show the color and texture of the basalt fiber itself by weaving basalt fiber and organic fiber into mixed fiber and controlling the mass ratio of basalt fiber to organic fiber. The appearance has high gloss and good appearance, and can effectively improve the composite strength of the mixed fiber and the second resin, and no stratification phenomenon occurs under 90°C. The base layer, luminous layer, fiber layer and surface layer in the basalt fiber composite material interact with each other, so that the basalt fiber composite material has good heat resistance and light resistance, that is, good weather resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1A schematic diagram of the structure of a basalt fiber composite material provided in one embodiment.

[0039] Reference numerals:

[0040] 10: basalt fiber composite material; 11: base layer; 12: luminous layer; 13: fiber layer; 14: surface layer. DETAILED DESCRIPTION

[0041] References to embodiments of the present invention will now be provided in detail, one or more examples of which are described below. Each example is provided as an explanation rather than a limitation of the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made to the present invention without departing from the scope or spirit of the present invention. For example, a feature illustrated or described as part of one embodiment may be used in another embodiment to produce a further embodiment.

[0042] Therefore, it is intended that the present invention covers such modifications and variations that fall within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present invention are disclosed in or are obvious from the following detailed description. Those of ordinary skill in the art will appreciate that this discussion is only a description of exemplary embodiments and is not intended to limit the broader aspects of the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0044] The term "comprises", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the sentence "comprising one..." do not exclude the presence of other identical elements in the process, method, article or equipment including the elements. The indefinite articles "a kind of" and "an" before the elements or components of the present invention are not restrictive to the quantity requirements (i.e., the number of occurrences) of the elements or components. Therefore, "a" or "a kind of" should be interpreted as including one or at least one, and the elements or components in the singular form also include the plural form, unless the number clearly refers only to the singular form. The meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] The weight of the relevant components mentioned in the description of the embodiments of the present invention may not only refer to the specific content of each component, but also indicate the weight ratio between the components. Therefore, as long as the content of the relevant components is proportionally enlarged or reduced according to the description of the embodiments of the present invention, it is within the scope disclosed in the description of the embodiments of the present invention. Specifically, the weight described in the description of the embodiments of the present invention may be a mass unit known in the chemical industry such as μg, mg, g, kg, etc.

[0046] Except as shown in the operating examples or otherwise indicated, all numbers used in the specification and claims to indicate the amount of ingredients, physicochemical properties, etc. are understood to be adjusted by the term "about" in all cases. For example, therefore, unless otherwise indicated, the numerical parameters listed in the above specification and the attached claims are approximate values, and those skilled in the art can use the teachings disclosed herein to seek to obtain the desired properties and appropriately change these approximate values. The use of numerical ranges expressed as endpoints includes all numbers within the range and any range within the range, for example, 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4 and 5, etc.

[0047] After analysis, it is believed that the reason why traditional basalt fiber products have poor weather resistance may be that the wettability of basalt fiber with resin is poor and the interlayer bonding strength is not high, resulting in poor weather resistance.

[0048] See also Figure 1 In one embodiment of the present application, a basalt fiber composite material 10 is provided, comprising a stacked base layer 11, a luminescent layer 12, a fiber layer 13 and a surface layer 14, wherein the luminescent layer 12 comprises luminescent powder and a first resin, and the fiber layer 13 comprises a mixed fiber of basalt fiber and organic fiber and a second resin, wherein the mixed fiber has a porous structure, and the mass ratio of basalt fiber to organic fiber is 2 to 4:1.

[0049] The basalt fiber composite material of the present application includes a stacked base layer, a luminous layer, a fiber layer and a surface layer. The luminous powder in the luminous layer can emit light through the fiber layer by controlling the hole structure of the fiber layer. At the same time, the fiber layer can show the color and texture of the basalt fiber itself by weaving basalt fiber and organic fiber into mixed fiber and controlling the mass ratio of basalt fiber to organic fiber. The appearance has high gloss and good appearance, and can effectively improve the composite strength of the mixed fiber and the second resin, and no stratification phenomenon occurs under 90°C. The base layer, luminous layer, fiber layer and surface layer in the basalt fiber composite material interact with each other, so that the basalt fiber composite material has good heat resistance and light resistance, that is, good weather resistance.

[0050] It can be understood that the mass ratio of basalt fiber to organic fiber includes but is not limited to 2:1, 2.5:1, 3:1, 3.5:1, and 4:1; in some examples, it can be within a range consisting of any two of these point values ​​as end values, the same below.

[0051] In some of these examples, the mass ratio of basalt fiber to organic fiber in the basalt fiber composite is 3-4:1.

[0052] The study found that improper adjustment of the mass ratio of basalt fiber to organic fiber will lead to a decrease in the composite strength of the mixed fiber and the second resin, which is not conducive to the weather resistance of basalt fiber composites.

[0053] In some of the examples, in the basalt fiber composite material, the diameters of the basalt fibers and the organic fibers are independently selected from 10 μm to 14 μm.

[0054] It can be understood that the diameters of the basalt fibers and the organic fibers independently include but are not limited to 10 μm, 11 μm, 12 μm, 13 μm, and 14 μm.

[0055] The study found that by controlling the diameter of basalt fiber and organic fiber within a certain range, it is easy to weave, not easy to break and twist, and is beneficial to control the hole diameter of the mixed fiber and the strength of the mixed fiber.

[0056] It is further understood that the diameters of the basalt fibers and the organic fibers may be the same or different.

[0057] In some of these examples, the diameters of the basalt fibers and the organic fibers in the basalt fiber composites are the same.

[0058] The diameters of basalt fiber and organic fiber are controlled to be the same, which is convenient for weaving, so that the weaving effect of the mixed fiber of basalt fiber and organic fiber is better, showing better texture, so that the appearance effect of basalt fiber composite material is higher, and at the same time it is beneficial to improve the composite strength of basalt fiber composite material, thereby improving the weather resistance of basalt fiber composite material.

[0059] In some of the examples, in the basalt fiber composite material, the mass ratio of the mixed fiber to the second resin is 2-4:1.

[0060] It can be understood that the mass ratio of the mixed fiber to the second resin includes but is not limited to 2:1, 2.5:1, 3:1, 3.5:1, and 4:1.

[0061] By controlling the mass ratio of the mixed fiber to the second resin, the composite strength of the mixed fiber and the second resin can be further promoted, thereby further improving the weather resistance of the basalt fiber composite material.

[0062] In some of these examples, the diameter of the pore structure in the basalt fiber composite is 0.3 mm~0.5 mm.

[0063] It can be understood that the diameter of the hole structure includes but is not limited to 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, and 0.5 mm.

[0064] By controlling the diameter of the pore structure, the composite strength of the mixed fiber and the second resin is effectively improved while ensuring that the luminescent powder in the luminescent layer can absorb light and emit light through the fiber layer at night.

[0065] In some of the examples, in the basalt fiber composite material, the organic fiber includes at least one of PET fiber (polyester fiber), PAN fiber (polyacrylonitrile), polyamide fiber (nylon), polypropylene fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, PBO fiber (polyparaphenylene benzobisoxazole fiber), PBI fiber (polybenzimidazole fiber) and PI fiber (polyimide fiber).

[0066] In some examples, in the basalt fiber composite material, the second resin includes at least one of epoxy resin, polyurethane resin, unsaturated polyester resin and acrylate.

[0067] Optionally, the second resin includes at least one of polyurethane resin and acrylate. Further, the second resin includes both polyurethane resin and acrylate. Further, the mass ratio of polyurethane resin to acrylate is 3-5:1.

[0068] The mixed fibers are reacted with a specific type of resin to facilitate subsequent curing.

[0069] In some of these examples, the luminescent powder includes an organic long afterglow material in a basalt fiber composite.

[0070] In some of the examples, in the basalt fiber composite material, the luminescent powder is doped with at least one of Eu and Dy.

[0071] In some of these examples, the luminescent powders in the basalt fiber composites include SrAl2O4:Eu,Dy and Sr4Al 14 O 25 : At least one of Eu, Dy.

[0072] It can be understood that the organic long afterglow material can absorb light and emit light through the fiber layer at night, and can last for more than 10 hours, emitting light throughout the night.

[0073] In some of these examples, the particle size of the luminescent powder in the basalt fiber composite is 20 μm~80 μm.

[0074] It can be understood that the particle size of the luminescent powder includes but is not limited to 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, and 80 μm.

[0075] In some of these examples, in basalt fiber composites, the mass proportion of the luminescent powder in the luminescent layer is 0.5%~5%.

[0076] It can be understood that the mass proportion of the luminescent powder in the luminescent layer includes but is not limited to 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, and 5%.

[0077] In some of the examples, in the basalt fiber composite material, the first resin includes at least one of polyurethane and acrylate.

[0078] Through the specific type of the first resin, the luminescent layer can be given better flexibility, which is convenient for processing; and the bonding strength between the luminescent powder and the first resin can be further improved, as well as the bonding strength between the luminescent layer and the fiber layer, thereby further improving the weather resistance of the basalt fiber composite material.

[0079] In some of the examples, in the basalt fiber composite material, the first resin includes polyurethane and acrylate.

[0080] Furthermore, the mass ratio of polyurethane to acrylate is 2~6:1.

[0081] It is understood that the mass ratio of polyurethane to acrylate includes but is not limited to 2:1, 3:1, 4:1, 5:1, and 6:1.

[0082] In some of the examples, in the basalt fiber composite material, the base layer includes a third resin and a pigment, and the third resin includes an epoxy resin.

[0083] In some of the examples, the basalt fiber composite material is dark in color, that is, the base layer is an opaque substrate, which can prevent the light-emitting layer from transmitting light from the back and improve the overall decorative effect.

[0084] In some of the examples, in the basalt fiber composite material, the surface layer includes at least one of an aliphatic epoxy resin and a vinyl resin.

[0085] Further, the surface layer comprises aliphatic epoxy resin and vinyl resin. Further, the mass ratio of aliphatic epoxy resin to vinyl resin is 3-5:1.

[0086] In some of the examples, in the basalt fiber composite material, the aliphatic diisocyanate is selected from at least one of hexamethylene diisocyanate, isophorone diisocyanate and dicyclohexylmethane-4,4'-diisocyanate.

[0087] The surface layer uses a specific type of resin that effectively prevents discoloration.

[0088] It is understood that the surface layer may also include additives, including but not limited to ultraviolet absorbers, antioxidants, preservatives, etc.

[0089] In some of these examples, the surface layer of the basalt fiber composite also includes a UV absorber.

[0090] It is understood that the present application does not limit the types of ultraviolet absorbers, including but not limited to at least one of benzophenones, benzotriazoles, hindered amines and antioxidants; for example, at least one of di-tert-butyl-p-cresol (BHT), tri-tert-butyl-hydroxybenzene (TBP) and di-tert-butylphenol (TBHQ).

[0091] In some of these examples, the mass proportion of UV absorbers in the surface layer of basalt fiber composites is 1% to 5%.

[0092] It can be understood that the mass proportion of the ultraviolet absorber in the surface layer includes but is not limited to 1%, 2%, 3%, 4%, and 5%.

[0093] It can be understood that the basalt fiber composite material of the present application has no limitation on the thickness of the base layer, the luminous layer, the fiber layer and the surface layer, and can be set according to actual needs.

[0094] In some of these examples, the thickness of the fiber layer in the basalt fiber composite material is 0.2~0.3mm.

[0095] In some of these examples, the thickness of the light-emitting layer in the basalt fiber composite material is 0.1-0.3.

[0096] In some of these examples, the thickness of the surface layer in the basalt fiber composite is 0.5-0.8.

[0097] An embodiment of the present application provides a method for preparing a basalt fiber composite material, comprising the following steps:

[0098] Step S100: mixing the luminescent powder and the first resin to prepare a luminescent powder mixture.

[0099] Step S200: Mixing basalt fiber and organic fiber to prepare mixed fiber; the mixed fiber has a porous structure, and the mass ratio of basalt fiber to organic fiber is 2-4:1.

[0100] Step S300: Mixing the mixed fiber prepared in step S200 with a second resin to prepare a mixed fiber prepreg.

[0101] Step S400: The luminescent powder mixture prepared in step S100 and the mixed fiber prepreg prepared in step S200 are sequentially arranged on one side of the base layer, and a luminescent layer and a fiber layer are sequentially formed on one side of the base layer through curing.

[0102] Step S500: forming a surface layer on a side of the fiber layer away from the light-emitting layer.

[0103] It can be understood that the preparation method of the basalt fiber composite material provided in the present application can prepare the above-mentioned basalt fiber composite material, and the above-mentioned basalt fiber composite material can also be prepared by the preparation method of the basalt fiber composite material provided in the present application. It can be further understood that step S100, step S200, step S300, step S400, and step S500 do not represent the order, and some steps can be implemented first or later. For example, after the luminescent powder mixture is prepared in step S100, the luminescent powder mixture is directly arranged on one side of the base layer, and then steps S200 and S300 are performed to prepare the mixed fiber prepreg, and then the mixed fiber prepreg is arranged on one side of the base layer of the luminescent layer intermediate. It can be understood that after the luminescent powder mixture is arranged on one side of the base layer, it can be preliminarily cured to form a luminescent layer intermediate, and the method of its preliminary curing includes but is not limited to oven heating.

[0104] In some of the examples, in the method for preparing basalt fiber composite materials, the curing temperature is 160°C~170°C and the curing time is 10 min~30 min.

[0105] It is understood that the curing temperature includes but is not limited to 160°C, 162°C, 165°C, 168°C, and 170°C, and the curing time includes but is not limited to 10 min, 12 min, 15 min, 18 min, 20 min, 22 min, 25 min, 28 min, and 30 min.

[0106] In some of the examples, in the method for preparing the basalt fiber composite material, the manner of forming the surface layer includes but is not limited to spraying.

[0107] One embodiment of the present application provides the use of the above basalt fiber composite material in preparing basalt fiber products. Another embodiment of the present application provides a basalt fiber product, including the above basalt fiber composite material or the basalt fiber composite material prepared by the above preparation method.

[0108] The above-mentioned basalt fiber composite material or the basalt fiber composite material prepared by the above-mentioned preparation method is used to prepare basalt fiber products, which can give the basalt fiber products higher weather resistance.

[0109] In some of the embodiments, the basalt fiber products include but are not limited to automobile exterior parts, public transportation exterior parts, etc.

[0110] The present application is further described in detail below in conjunction with specific implementation methods, but the implementation methods of the present application are not limited thereto.

[0111] Example 1

[0112] (1) Polyurethane resin and acrylate solution are mixed with organic long afterglow material SrA l2 O4:Eu,Dy (particle size 40 μm) were mixed to prepare the luminescent powder mixture; the mass ratio of polyurethane resin to acrylate was 4:1;

[0113] (2) placing the luminescent powder mixture prepared in step (1) on a base layer (an epoxy resin substrate doped with a high-color carbon black pigment), and drying at 80 degrees Celsius to form a luminescent layer intermediate;

[0114] (3) basalt fiber (diameter 10 μm) and organic fiber (polypropylene fiber with a diameter of 10 μm) were woven in a mass ratio of 2:1 to prepare a blended fiber, wherein the blended fiber had a hole with a diameter of 0.3 mm;

[0115] (4) mixing the mixed fiber prepared in step (3) and the polyurethane resin in a mass ratio of 2:1 to prepare a mixed fiber prepreg;

[0116] (5) placing the mixed fiber prepreg prepared in step (4) on the side of the light-emitting layer intermediate prepared in step (2) away from the substrate layer, drying naturally, and hot pressing at 170° C. for 20 min to prepare a composite material intermediate; the composite material intermediate comprises a laminated substrate layer, a light-emitting layer and a fiber layer, and the mass proportion of the organic long afterglow material in the light-emitting layer is 1%;

[0117] (6) Mix isophorone diisocyanate, vinyl resin and ultraviolet absorber di-tert-butyl paracresol, and spray the mixture onto the side of the fiber layer in the composite intermediate away from the light-emitting layer to form a surface layer, thereby preparing a basalt fiber composite material. The basalt fiber composite material includes a stacked base layer, a light-emitting layer, a fiber layer and a surface layer; in the surface layer, the mass ratio of the ultraviolet absorber is 2%, and the mass ratio of isophorone diisocyanate to the vinyl resin is 4:1.

[0118] Example 2

[0119] The method is basically the same as Example 1, except that in step (3), the mass ratio of basalt fiber to polypropylene fiber when preparing the mixed fiber is 3.5:1.

[0120] Example 3

[0121] The method is basically the same as Example 1, except that in step (3), the mass ratio of basalt fiber to polypropylene fiber when preparing the mixed fiber is 4:1.

[0122] Example 4

[0123] The method is basically the same as Example 1, except that in step (3), the diameter of the basalt fiber is 14 μm, and the diameter of the polypropylene fiber is 14 μm.

[0124] Example 5

[0125] The method is basically the same as Example 1, except that in step (3), the diameter of the basalt fiber is 10 μm, and the diameter of the polypropylene fiber is 14 μm.

[0126] Example 6

[0127] The method is basically the same as Example 1, except that in step (3), the hole diameter of the mixed fiber is 0.5 mm.

[0128] Example 7

[0129] The method is basically the same as Example 1, except that in step (4), the mass ratio of the mixed fiber to the polyurethane resin is 4:1.

[0130] Example 8

[0131] The method is basically the same as Example 1, except that step (4) is as follows: the mixed fiber prepared in step (3) is mixed with polyurethane resin and acrylate to prepare a mixed fiber prepreg; the ratio of the mass of the mixed fiber to the total mass of the polyurethane resin and the acrylate is 2:1, and the mass ratio of the polyurethane resin to the acrylate is 3:1.

[0132] Comparative Example 1

[0133] The method is basically the same as Example 1, except that the polyurethane resin, acrylate solution and organic long afterglow material used to prepare the luminescent powder mixture in step (1) of Example 1 are mixed with the mixed fiber and polyurethane resin used to prepare the mixed fiber prepreg in step (4), and the mixture is arranged on a base layer, naturally dried, and then hot-pressed at 170° C. for 20 min to prepare a composite material intermediate; the composite material intermediate includes a laminated base layer and a fiber layer containing luminescent powder; and the surface layer is formed according to step (6) of Example 1.

[0134] Comparative Example 2

[0135] The method is basically the same as Example 1, except that in step (3), the mass ratio of basalt fiber to polypropylene fiber when preparing the mixed fiber is 20:1.

[0136] Comparative Example 3

[0137] The method is basically the same as Example 1, except that in step (3), the mass ratio of basalt fiber to polypropylene fiber when preparing the mixed fiber is 9:1.

[0138] Comparative Example 4

[0139] The method is basically the same as Example 1, except that in step (3), the mass ratio of basalt fiber to polypropylene fiber when preparing the mixed fiber is 5:1.

[0140] Comparative Example 5

[0141] The method is basically the same as Example 1, except that in step (3), the mass ratio of basalt fiber to polypropylene fiber when preparing the mixed fiber is 0.5:1.

[0142] Some parameters for preparing the basalt fiber composite materials of various embodiments and comparative examples are shown in Table 1.

[0143] Table 1

[0144]

[0145] The basalt fiber composite materials prepared in each embodiment and comparative example were subjected to performance tests, including appearance gloss (FZ / T 01097-2006), night warning effect evaluation (using a weak light meter to test the afterglow brightness of the material after 8 hours), heat resistance (90°C, whether the material has delamination after 240 hours) and light resistance (GB / T16422.2, duration 1000 hours); the results are shown in Table 2.

[0146] Table 2

[0147]

[0148] It can be seen from Table 2 that compared with the comparative example, the basalt fiber composite material prepared in the embodiment shows better texture and higher appearance gloss; it can glow for more than 10 hours at night, showing a good warning effect at night; it has good heat resistance and light resistance; while in comparative example 1, the raw materials for preparing the luminous layer and the fiber layer in embodiment 1 are directly mixed to prepare a fiber layer containing luminous powder. Since the self-luminous powder is directly mixed on the surface of the fiber layer, the brightness of the basalt fiber composite material is improved after 8 hours, but white particles agglomerate on the surface of the basalt fiber composite material, affecting the appearance effect, and the surface gloss is reduced; the proportion of basalt fiber in the mixed fibers of comparative examples 2 to 4 is relatively large, resulting in interlayer cracking or cracking during the heat resistance test; the proportion of organic fiber in the mixed fibers of comparative example 5 is relatively large, and the basalt fiber texture appearance score presented is poor, and the surface gloss is reduced.

[0149] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0150] The above-described embodiments only express several implementation methods of the present application, which is convenient for understanding the technical solution of the present application in detail, but it cannot be understood as limiting the scope of protection of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the scope of protection of the present application. It should be understood that the technical solutions obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided in the present application are all within the scope of protection of the claims attached to the present application. Therefore, the scope of protection of the patent of this application shall be based on the contents of the attached claims, and the description and drawings can be used to explain the contents of the claims.

Claims

1. A basalt fiber composite material, characterized in that: It includes a stacked base layer, a luminous layer, a fiber layer and a surface layer, the luminous layer includes luminous powder and a first resin, the fiber layer includes a mixed fiber of basalt fiber and organic fiber and a second resin, the mixed fiber has a hole structure, and the mass ratio of the basalt fiber to the organic fiber is 2~4:

1.

2. The basalt fiber composite material according to claim 1, characterized in that: The diameters of the basalt fiber and the organic fiber are independently selected from 10 μm to 14 μm.

3. The basalt fiber composite material according to claim 1, characterized in that: The mass ratio of the mixed fiber to the second resin is 2-4:

1.

4. The basalt fiber composite material according to claim 1, characterized in that: The diameter of the hole structure is 0.3 mm to 0.5 mm.

5. The basalt fiber composite material according to any one of claims 1 to 4, characterized in that: The fiber layer satisfies at least one of the following characteristics: (1) The organic fiber includes at least one of PET fiber, PAN fiber, polyamide fiber, polypropylene fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, PBO fiber, PBI fiber and PI fiber; (2) the second resin comprises at least one of epoxy resin, polyurethane resin, unsaturated polyester resin and acrylate; (3) The thickness of the fiber layer is 0.2-0.4 mm.

6. The basalt fiber composite material according to any one of claims 1 to 4, characterized in that: The light-emitting layer satisfies at least one of the following characteristics: (1) The first resin includes at least one of polyurethane and acrylate; (2) The luminescent powder includes an organic long afterglow material; (3) The luminescent powder is doped with at least one of Eu and Dy; (4) The luminescent powder includes SrAl2O4:Eu,Dy and Sr4Al 14 O 25 : At least one of Eu, Dy; (5) The particle size of the luminescent powder is 20 μm to 80 μm; (6) The thickness of the light-emitting layer is 0.1-0.4 mm.

7. The basalt fiber composite material according to any one of claims 1 to 4, characterized in that: The base layer includes a third resin and a pigment, and the third resin includes an epoxy resin.

8. The basalt fiber composite material according to any one of claims 1 to 4, characterized in that: The surface layer includes at least one of an aliphatic epoxy resin and a vinyl resin.

9. The basalt fiber composite material according to claim 8, characterized in that: The surface layer satisfies at least one of the following characteristics: (1) The surface layer further comprises an ultraviolet absorber; (2) The thickness of the surface layer is 0.4-0.8 mm.

10. A method for preparing a basalt fiber composite material, characterized in that: The following steps are involved: Mixing the luminescent powder and the first resin to prepare a luminescent powder mixture; Mixing basalt fiber and organic fiber to prepare mixed fiber; the mixed fiber has a hole structure, and the mass ratio of the basalt fiber to the organic fiber is 2-4:1; Mixing the mixed fiber and a second resin to prepare a mixed fiber prepreg; The luminescent powder mixture and the mixed fiber prepreg are sequentially arranged on one side of the base layer, and a luminescent layer and a fiber layer are sequentially formed on one side of the base layer after being cured; A surface layer is formed on a side of the fiber layer away from the light-emitting layer.

11. The preparation method according to claim 10, characterized in that: The curing temperature is 160° C. to 170° C., and the curing time is 10 min to 30 min.

12. A basalt fiber product, characterized in that: The invention comprises the basalt fiber composite material as claimed in any one of claims 1 to 9 or the basalt fiber composite material prepared by the preparation method as claimed in any one of claims 10 to 11.

13. The basalt fiber product according to claim 12, characterized in that: The basalt fiber products include automobile exterior parts.

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