CN118185126B

CN118185126B - Modified fiberglass tire and preparation method thereof, composition for asphalt shingles, asphalt shingles and preparation method and application thereof

Info

Publication number: CN118185126B
Application number: CN202410349824.3A
Authority: CN
Inventors: 何淞坡; 温泽玲; 王晶; 冯敏亮; 陈思思
Original assignee: Dezhou Keshun Building Mat Co ltd; Keshun Waterproof Technology Co Ltd
Current assignee: Dezhou Keshun Building Mat Co ltd; Keshun Waterproof Technology Co Ltd
Priority date: 2024-03-26
Filing date: 2024-03-26
Publication date: 2024-12-20
Anticipated expiration: 2044-03-26
Also published as: CN118185126A

Abstract

The invention relates to the field of asphalt tiles, and discloses a modified glass fiber tire and a preparation method thereof, a composition for asphalt tiles, an asphalt tile and a preparation method and application thereof. The method for preparing the modified glass fiber tire comprises the step of heating an aqueous solution I containing graphene oxide and polyphosphate, a raw material glass fiber tire and a reducing agent to obtain the modified glass fiber tire. The method for preparing the modified glass fiber tire is simple and high in operability, and the prepared modified glass fiber tire has a compact three-dimensional network structure, can be applied to the field of asphalt tiles, and further improves the electromagnetic shielding performance of the asphalt tiles. The asphalt tile prepared from the asphalt tile composition provided by the invention has excellent tear resistance and excellent electromagnetic shielding performance, and is particularly suitable for the field of building outer walls with strict requirements on water resistance and electromagnetic shielding.

Description

Modified glass fiber tire and preparation method thereof, composition for asphalt tile, asphalt tile and preparation method and application thereof

Technical Field

The invention relates to the field of asphalt tiles, in particular to a modified glass fiber tire and a preparation method thereof, a composition for asphalt tiles, an asphalt tile and a preparation method and application thereof.

Background

At present, carbon black, graphite, metal powder, conductive fibers and the like are generally added into an electromagnetic shielding material of an outer wall. However, carbon black and graphite are only outstanding in conductivity, poor in shielding capability on low-frequency magnetic fields, single in addition type of electromagnetic shielding materials and poor in overall shielding effect, and metal powder (such as lead) pollutes the environment and can cause metal corrosion problems when being mixed into an outer wall material. The asphalt shingle is a waterproof material commonly used for building roofs, and is commonly used for tightly coating the outer surfaces of buildings, and the application mode is consistent with the wrapping condition required by electromagnetic shielding, so that the asphalt shingle is suitable for being used as an electromagnetic shielding material.

CN206220376U discloses a conductive snowmelt color asphalt tile, the tile body is formed by compounding a plurality of layers of layered structures. The structural layer is sequentially provided with a colored gravel layer, an upper conductive modified asphalt layer, a carcass layer, a lower modified asphalt self-adhesive layer and an isolating film layer from the upper surface to the lower surface, wherein the upper conductive modified asphalt layer and the lower conductive modified asphalt layer are prepared by adding graphite powder into polymer modified asphalt with the addition of 30%, so that the layer has a resistance function, and snow and ice can be quickly melted by heating and heating under external power-on. However, the blending amount of the graphite powder is larger, the cost is higher, the graphite powder is difficult to disperse effectively, and the electromagnetic shielding performance of the obtained asphalt tile is poor.

Disclosure of Invention

The invention aims to solve the problems of low tearing strength and poor electromagnetic shielding performance of the existing asphalt shingle.

In order to achieve the above object, a first aspect of the present invention provides a method for producing a modified glass fiber tire, comprising the steps of:

Carrying out heating treatment on an aqueous solution I containing graphene oxide and polyphosphate, a raw material glass fiber tire and a reducing agent to obtain a modified glass fiber tire;

The concentration of graphene oxide in the aqueous solution I is 30-80mg/mL, and the concentration of polyphosphate is 1-3mg/mL;

The gram weight of the raw material glass fiber tire is more than or equal to 250g/m ²;

the dosage of the graphene oxide is 10-50g and the dosage of the reducing agent is 15-75mL relative to the raw material glass fiber tire of each 1m ².

In a second aspect, the present invention provides a modified glass fiber preform prepared by the method of the first aspect.

In a third aspect, the present invention provides a composition for asphalt shingles, the composition comprising a modified glass fiber mat and a modified asphalt;

The content of the modified asphalt material is 1000-2000g relative to each 1m ² of the modified glass fiber tire;

Based on the total weight of the modified asphalt, the modified asphalt contains 75-85 wt% of matrix asphalt, 3-8 wt% of polyolefin wax powder, 3-8 wt% of thermoplastic elastomer and 5-15 wt% of filler;

the modified glass fiber tire is the modified glass fiber tire of the second aspect.

In a fourth aspect the present invention provides a method of making an asphalt shingle using the components of the composition of the third aspect, comprising:

(1) Firstly mixing matrix asphalt, polyolefin wax powder, thermoplastic elastomer and filler to obtain modified asphalt material;

(2) And carrying out infiltration treatment on the modified glass fiber tire and the modified asphalt material to obtain the asphalt tile.

A fifth aspect of the present invention provides an asphalt shingle prepared by the method of the fourth aspect.

A sixth aspect of the present invention provides the use of an asphalt shingle according to the fifth aspect in a waterproofing material.

The method for preparing the modified glass fiber tire is simple, high in operability, economical and environment-friendly, and the prepared modified glass fiber tire has a compact three-dimensional network structure, can be applied to the field of asphalt tiles, and further improves the electromagnetic shielding performance and tear resistance of the asphalt tiles.

The asphalt tile prepared from the asphalt tile composition provided by the invention has excellent tear resistance (tearing strength is more than 35N) and excellent electromagnetic shielding performance (electromagnetic shielding performance is more than 35 dB), and is particularly suitable for the field of building outer walls with strict requirements on water resistance and electromagnetic shielding.

Drawings

FIG. 1 is a scanning electron microscope image of a glass fiber tube I used in preparation example C1 of the present invention;

FIG. 2 is a scanning electron microscope image of the modified glass fiber preform produced in production example C1 of the present invention.

Detailed Description

The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.

As previously described, a first aspect of the present invention provides a method of preparing a modified glass fiber preform, the method comprising the steps of:

In the invention, the thickness of the raw material glass fiber tire is 1.2-2.5mm.

Preferably, the aqueous solution I is prepared by stirring and mixing graphene oxide aqueous dispersion liquid and polyphosphate. The graphene oxide is commercially available or self-made.

Preferably, the dosage of the graphene oxide aqueous dispersion solution and the polyphosphate is controlled so that the concentration of graphene oxide in the aqueous solution I is 30-80mg/mL and the concentration of the polyphosphate is 1-3mg/mL. The inventor of the invention discovers that the aqueous solution I (the concentration of graphene oxide is 30-80mg/mL and the concentration of polyphosphate is 1-3 mg/mL) is more beneficial to modifying the raw material glass fiber embryo.

Preferably, the concentration of graphene oxide in the graphene oxide aqueous dispersion is 30-80mg/mL.

The conditions for stirring and mixing are not particularly limited as long as the dispersion of graphene oxide and the polyphosphate can be uniformly mixed.

According to a preferred embodiment, the graphene oxide is prepared by a process comprising the steps of:

s1, carrying out contact mixing on graphite, potassium nitrate, sulfuric acid and potassium permanganate to obtain an intermediate I;

the concentration of the sulfuric acid is 90-98 wt%;

s2, stirring the intermediate I and hydrogen peroxide in the presence of water to react to obtain the graphene oxide;

the concentration of the hydrogen peroxide is 25-30wt%.

Preferably, in step S1, the graphite and the potassium permanganate are used in a weight ratio of 1:0.8-1.2.

Preferably, in step S1, the specific operation of contact mixing includes:

S11, carrying out a first stirring reaction on sulfuric acid, graphite and potassium nitrate to obtain a mixture I;

and S12, carrying out a second stirring reaction on the potassium permanganate and the mixture I to obtain an intermediate I.

Preferably, in step S11, the graphite and the potassium nitrate are used in a weight ratio of 1:0.8-1.2.

Preferably, in step S11, the conditions of the first stirring reaction include a rotation speed of 100-300rpm, a temperature of 0-5 ℃ and a time of 0.5-2h.

Preferably, in step S11, the sulfuric acid is used in an amount of 180-220mL relative to 10g of graphite.

Preferably, in step S12, the conditions of the second stirring reaction include a rotation speed of 300-400rpm, a temperature of 30-50 ℃ and a time of 20-40min.

Preferably, in step S2, the volume usage ratio of the water to the hydrogen peroxide is 1:0.2-0.3.

Preferably, the hydrogen peroxide is used in a volume amount of 8-12mL relative to 1g of potassium permanganate.

Preferably, in step S2, the stirring reaction conditions include a rotation speed of 300-400rpm, a temperature of 90-100 ℃ and a time of 0.5-1.5h.

In the present invention, after the stirring reaction, for example, the product obtained after the stirring reaction is subjected to filtration, first washing, centrifugation, second washing, and first drying in this order may be used. The present invention has no particular requirement on the mode of the first washing, and the present invention adopts hydrochloric acid with the concentration of 1-2mol/L for the first washing, and the present invention has no particular requirement on the mode of the second washing, as long as the pH of the solution after the water washing is 6.8-7.2, and the present invention has no particular requirement on the mode of the first drying, as long as the product after the second washing is completely dried.

Preferably, the heating treatment conditions include a temperature of 80-120 ℃ for 1-3 hours.

It should be noted that the heat treatment may be followed by post-treatment known in the art, for example, drying the heat-treated product. The drying mode is not particularly required, and the material is only required to be completely dried.

Preferably, the polyphosphate is at least one of ammonium polyphosphate, sodium tripolyphosphate, potassium tripolyphosphate, sodium polyphosphate, and sodium hexametaphosphate.

Preferably, the reducing agent is hydrazine hydrate and/or vitamin C. Further preferred is hydrazine hydrate.

The water type of the present invention is not particularly limited, and may be deionized water, ultrapure water, etc., and may be selected as required by those skilled in the art.

As previously described, a second aspect of the present invention provides a modified glass fiber batt produced by the method of the first aspect described above.

As previously described, a third aspect of the present invention provides a composition for asphalt shingles, the composition comprising a modified glass fiber mat and a modified asphalt;

Preferably, the penetration of the matrix asphalt at 25 ℃ is 65-95.1 mm and the softening point is 40-70 ℃.

Preferably, the polyolefin wax powder has a viscosity of 100-500mpa.s at 130 ℃, a softening point of 100-120 ℃ and a number average molecular weight of 1200-3000. The inventors found that under this preferred condition, the tear properties and electromagnetic shielding properties of the asphalt shingles produced were better.

Preferably, the base asphalt is at least one selected from the group consisting of 70# asphalt, 90# asphalt and 200# asphalt.

Preferably, the thermoplastic elastomer is a butadiene-styrene-butadiene triblock copolymer and/or a butadiene-isoprene-butadiene triblock copolymer. The inventors have found that in this preferred case, the tear properties of the asphalt shingles produced are higher.

Preferably, the thermoplastic elastomer is a butadiene-styrene-butadiene triblock copolymer.

Preferably, the polyolefin wax powder is selected from at least one of oxidized polyethylene wax, polypropylene wax.

Preferably, the filler is at least one selected from talcum powder, heavy calcium carbonate, montmorillonite, kaolin and metakaolin, and the average particle size of the particles of the filler is 13-75 mu m.

More preferably, the filler is heavy calcium.

As previously mentioned, a fourth aspect of the present invention provides a method of making an asphalt shingle using the components of the composition of the third aspect, comprising:

Preferably, in step (1), the first mixing conditions include a rotation speed of 100-300rpm, a temperature of 160-200 ℃ and a time of 1-3 hours.

Preferably, in the step (2), the conditions of the infiltration treatment include a temperature of 180-220 ℃ and a time of 0.5-5min.

As previously described, a fifth aspect of the present invention provides an asphalt shingle prepared by the method of the fourth aspect.

As previously mentioned, a sixth aspect of the present invention provides the use of an asphalt shingle according to the fifth aspect in a waterproofing material.

The invention will be described in detail below by way of examples. In the following examples, unless otherwise specified, the instruments, reagents, materials and the like referred to are conventional instruments, reagents, materials and the like, and are commercially available. Wherein, unless otherwise indicated, all reagents used were commercially available analytically pure products.

Graphite available from Yu Annai Ji, CAS 7782-42-5,99.9%.

The concentration of sulfuric acid is 98wt%.

The concentration of hydrogen peroxide is 30wt%.

Hydrochloric acid with concentration of 1mol/L.

Graphene was 97% pure and purchased from Shanghai Yi En chemical technologies Co.

Graphene oxide:

And (3) graphene oxide I is self-made.

Graphene oxide II is available from Darli corporation under the model number of graphene oxide powder Darl-1.

Polyphosphate:

sodium tripolyphosphate available from Yu Annai Ji, CAS 7758-29-4.

Sodium carbonate, available from Yu Annai Ji, CAS number 497-19-8.

Raw material glass fiber tire:

Glass fiber tire I with a thickness of 1.8mm and a gram weight of 310g/m ² was purchased from developed cloth company.

Glass fiber tyre II with thickness of 1.0mm and gram weight of 110g/m ² is purchased from developed cloth company.

Matrix asphalt:

No. 70 bitumen, having a penetration of 72.1 mm at 25℃and a softening point of 52℃was purchased from Emblica under the trade designation 70#.

90 Bitumen having a penetration of 91.1 mm at 25℃and a softening point of 47℃was purchased from Gaofu corporation under the designation 90#.

Polyolefin wax powder:

polyethylene wax having a viscosity of 450mPa.s at 130℃and a softening point of 108℃and a number average molecular weight of 2800, available from Keminox, trade name 206.

Oxidized polyethylene wax having a viscosity of 250mPa.s at 130℃and a softening point of 114℃and a number average molecular weight of 1300, available from Cantonese Qiaoxing under the trademark 1085.

Polypropylene wax having a viscosity of 360mPa.s at 130℃and a softening point of 118℃and a number average molecular weight of 1600, available from Talc New Co., ltd., trade mark 80H.

Thermoplastic elastomer:

thermoplastic elastomer I, a butadiene-styrene-butadiene triblock copolymer, available from Barling petrochemical company under the trade name 813.

Thermoplastic elastomer II, butadiene-styrene diblock copolymer, available from Shandong Gao under the trade designation 473.

And (3) filling:

The coarse whiting I particles had an average particle size of 15 μm and were obtained from Cyanea nozakii Corp.

The coarse whiting II has an average particle diameter of 150 μm and is purchased from Zhongshan Male Ding company.

The areas of the glass fiber tube I and the glass fiber tube II in the following examples of the invention are 1m ².

The following preparation example a is used to illustrate the preparation of graphene oxide I.

Preparation example A

S1, carrying out a first stirring reaction on 200mL of sulfuric acid, graphite (10.0 g) and potassium nitrate (10.0 g) to obtain a mixture I;

The first stirring reaction condition is that the rotating speed is 200rpm, the temperature is 3 ℃ and the time is 1h;

s2, carrying out a second stirring reaction on 10.0g of potassium permanganate and the mixture I to obtain an intermediate I;

The second stirring reaction condition is that the rotating speed is 300rpm, the temperature is 40 ℃ and the time is 30min;

s3, stirring the intermediate I, 400mL of deionized water and 100mL of hydrogen peroxide for reaction, filtering, performing first washing on the precipitate by using hydrochloric acid, centrifuging, performing second washing by using deionized water until the pH value of the solution after water washing is 7.0, and performing first drying to obtain graphene oxide I;

The stirring reaction was carried out at a speed of 300rpm at 95℃for 1 hour.

The following preparation example B is used to illustrate the preparation of reduced graphene oxide.

Preparation example B

The graphene oxide I obtained in the preparation example A is added with water to prepare a graphene oxide aqueous dispersion with the concentration of 50mg/mL, then 400mL of graphene oxide aqueous dispersion and 30mL of hydrazine hydrate are subjected to heating treatment (the temperature is 90 ℃ and the time is 2 h), and the reduced graphene oxide is obtained after drying.

The following preparation examples of C series and comparative preparation examples are used to illustrate the preparation of modified glass fiber tires.

Preparation C1

(I) Stirring and mixing 400mL of graphene oxide aqueous dispersion liquid and sodium tripolyphosphate to obtain an aqueous solution I;

(ii) And (3) carrying out heating treatment on the aqueous solution I, the raw material glass fiber tire and hydrazine hydrate, and drying to obtain the modified glass fiber tire, which is named as T1.

The formulation and process parameters of this preparation are shown in Table 1.

PREPARATION EXAMPLE C2

This preparation was carried out in a similar manner to preparation C1, except that the formulation and process parameters were varied to give a modified glass fiber tire, designated T2, as specified in Table 1.

PREPARATION EXAMPLE C3

This preparation was carried out in a similar manner to preparation C1, except that the formulation and process parameters were varied to give a modified glass fiber tire, designated T3, as specified in Table 1.

Comparative preparation C-D1

20G of reduced graphene oxide (prepared in preparation example B) was uniformly scattered on the surface of a glass fiber preform I to obtain a modified glass fiber preform, which was designated as DT1.

Comparative preparation C-D2

This comparative preparation was carried out in a similar manner to preparation C1, except that the glass fiber tire I in preparation C1 was replaced with a glass fiber tire II of equal area, to give a modified glass fiber tire designated DT2, as specified in Table 1.

Comparative preparation examples C to D3

This comparative preparation was conducted in a similar manner to preparation C1 except that the concentration of graphene oxide was adjusted from 50mg/mL to 10mg/mL in preparation C1 with the volume of the graphene oxide aqueous dispersion controlled to be unchanged, to give a modified glass fiber tire, designated DT3, as specifically shown in Table 1.

Comparative preparation examples C to D4

This comparative preparation was carried out in a similar manner to preparation C1, except that sodium tripolyphosphate in preparation C1 was replaced with sodium carbonate of equal concentration, to give a modified glass fiber tire designated DT4, as specified in Table 1.

Comparative preparation examples C to D5

This comparative preparation was conducted in a similar manner to preparation C1 except that the amount of sodium tripolyphosphate was changed so that the concentration of sodium tripolyphosphate in the aqueous solution I was adjusted to 0.2mg/mL from 2mg/mL in preparation C1, with the volume of the graphene oxide aqueous dispersion being controlled to be unchanged, to give a modified glass fiber tire, designated DT5, as specifically shown in Table 1.

TABLE 1

Table 1, below

In the following examples of the invention, different raw material formulations were used, all raw materials being used in parts by weight and representing 20g per part by weight, unless otherwise specified.

Example 1

This example illustrates that the asphalt shingle composition of the present invention was formulated as shown in Table 2 and asphalt shingles were prepared as follows.

The method for preparing the asphalt shingle comprises the following steps:

The first mixing condition is that the rotating speed is 300rpm, the temperature is 180 ℃ and the time is 2 hours;

(2) Carrying out infiltration treatment on the modified glass fiber tire and the modified asphalt material to obtain the asphalt tile;

The conditions of the infiltration treatment are that the temperature is 190 ℃ and the time is 2min.

Example 2

This example was carried out in a similar manner to example 1, except that the formulation was varied, as shown in Table 2.

Example 3

Example 4

This example was conducted in a similar manner to example 1 except that the thermoplastic elastomer I of example 1 was replaced with an equal part by weight of the thermoplastic elastomer II, and the remainder was conducted in the same manner as in example 1, specifically as shown in Table 2.

Example 5

This example was conducted in a similar manner to example 1 except that the same weight parts of heavy calcium II were used in place of heavy calcium I in example 1, and the remainder were as in example 1, specifically shown in Table 2.

Comparative example 1

(1) First mixing 75 parts by weight of 70# asphalt, 5 parts by weight of polyethylene wax, 5 parts by weight of thermoplastic elastomer I, 10 parts by weight of heavy calcium I and 5 parts by weight of graphene to obtain a modified asphalt material;

(2) Carrying out infiltration treatment on the glass fiber tire I and the modified asphalt material to obtain the asphalt tile;

Comparative example 2

(1) First mixing 75 parts by weight of 70# asphalt, 5 parts by weight of polyethylene wax, 5 parts by weight of thermoplastic elastomer I, 10 parts by weight of heavy calcium I and 5 parts by weight of reduced graphene oxide (prepared by the preparation B) to obtain a modified asphalt material;

Comparative example 3

This comparative example uses a similar method to example 1, except that this comparative example uses an equal area of glass fiber batt I in place of the modified glass fiber batt T1 of example 1.

Comparative example 4

This comparative example uses a similar method to example 1, except that the same area of modified glass fiber tire DT1 was used instead of the modified glass fiber tire T1 in example 1.

Comparative example 5

This comparative example uses a similar method to example 1, except that the same area of modified glass fiber tire DT2 was used instead of the modified glass fiber tire T1 in example 1.

Comparative example 6

This comparative example uses a similar method to example 1, except that the same area of modified glass fiber tire DT3 was used in place of the modified glass fiber tire T1 of example 1.

Comparative example 7

This comparative example uses a similar method to example 1, except that the same area of modified glass fiber tire DT4 was used in place of the modified glass fiber tire T1 of example 1.

Comparative example 8

This comparative example uses a similar method to example 1, except that the same area of modified glass fiber tire DT5 was used in place of the modified glass fiber tire T1 of example 1.

TABLE 2

Test case

1. The microscopic morphologies of the glass fiber tire I in the preparation example C1 and the modified glass fiber tire T1 prepared in the preparation example C1 of the present invention were tested by using a scanning electron microscope, and the results are shown in fig. 1 and fig. 2, respectively. As can be seen from fig. 1 and 2, the modified glass fiber mould prepared by the method of the invention has a more compact three-dimensional network structure.

2. The asphalt shingles prepared in the above examples were tested for tear strength and electromagnetic shielding properties using the methods specified in GB/T20474-2015 and GB/T30142-2013, respectively, and the results are shown in Table 3.

TABLE 3 Table 3

The result shows that the modified glass fiber mould prepared by the method has a compact three-dimensional network structure and has good application prospect in asphalt tiles. The asphalt tile prepared from the asphalt tile composition provided by the invention has excellent tear resistance (tearing strength is more than 35N) and excellent electromagnetic shielding performance (electromagnetic shielding performance is more than 35 dB), and is particularly suitable for the field of building outer walls with strict requirements on water resistance and electromagnetic shielding.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.

Claims

1. A composition for asphalt shingles, characterized in that the composition contains modified glass fiber mat and modified asphalt material;

The content of the modified asphalt material is 1000-2000g per ^1m2 of the modified glass fiber tire;

Based on the total weight of the modified asphalt material, the modified asphalt material contains 75wt%-85wt% of base asphalt, 3wt%-8wt% of polyolefin wax powder, 3wt%-8wt% of thermoplastic elastomer and 5wt%-15wt% of filler;

The modified glass fiber tire is prepared by a method comprising the following steps:

The aqueous solution I containing graphene oxide and polyphosphate, the raw glass fiber tire and the reducing agent are heated to obtain a modified glass fiber tire;

The concentration of graphene oxide in the aqueous solution I is 30-80 mg/mL, and the concentration of polyphosphate is 1-3 mg/mL;

The raw glass fiber tire has a gram weight of ≥250g/m ² ;

Relative to every ^1m2 of the raw glass fiber tire, the amount of the graphene oxide is 10-50g, and the amount of the reducing agent is 15-75mL;

The thermoplastic elastomer is a butadiene-styrene-butadiene triblock copolymer and/or a butadiene-isoprene-butadiene triblock copolymer.

2. The composition according to claim 1, wherein the conditions of the heating treatment include: a temperature of 80-120°C and a time of 1-3h;

And/or, the polyphosphate is at least one of ammonium polyphosphate, sodium tripolyphosphate, potassium tripolyphosphate, sodium polyphosphate and sodium hexametaphosphate;

And/or, the reducing agent is hydrazine hydrate and/or vitamin C.

3. The composition according to claim 1 or 2, wherein the base asphalt has a needle penetration of 65-950.1 mm at 25°C and a softening point of 40-70°C;

And/or, the polyolefin wax powder has a viscosity of 100-500 mPa.s at 130° C., a softening point of 100-120° C., and a number average molecular weight of 1200-3000.

4. The composition according to claim 1 or 2, wherein the polyolefin wax powder is selected from at least one of oxidized polyethylene wax, polyethylene wax, and polypropylene wax;

And/or, the filler is selected from at least one of talc, heavy calcium, montmorillonite, kaolin and metakaolin; and the average particle size of the filler is 13-75 μm.

5. A method for preparing asphalt shingles, characterized in that the method is carried out using the components of the composition according to any one of claims 1 to 4, comprising:

(1) mixing base asphalt, polyolefin wax powder, thermoplastic elastomer and filler to obtain modified asphalt material;

(2) The modified glass fiber base is impregnated with the modified asphalt material to obtain the asphalt shingle.

6. The method according to claim 5, wherein in step (1), the first mixing conditions include: a rotation speed of 100-300 rpm, a temperature of 160-200°C, and a time of 1-3h;

And/or, in step (2), the conditions of the infiltration treatment include: temperature of 180-220° C. and time of 0.5-5 min.

7. Asphalt shingles prepared by the method of claim 5 or 6.

8. Use of the asphalt shingle according to claim 7 in waterproof construction.