CN111909458A

CN111909458A - Preparation method of wave-transparent base material and wave-transparent base material prepared by same

Info

Publication number: CN111909458A
Application number: CN202010880382.7A
Authority: CN
Inventors: 田碧强; 梁耀军; 黄文雄
Original assignee: Shenzhen Zhuoyue Technology Co ltd
Current assignee: Shenzhen Zhuoyue Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-11-10

Abstract

The application relates to the technical field of wave-transparent materials, in particular to a preparation method of a wave-transparent base material and the wave-transparent base material prepared by the same, wherein the preparation method of the wave-transparent base material comprises the following steps: step (1), melting polypropylene; step (2), adding low-density polyethylene, paraffin and inorganic filler, and uniformly stirring; step (3), reducing the temperature to below 110 ℃, adding potassium permanganate, uniformly stirring, and reducing the temperature to perform solidification molding to obtain modified polypropylene; step (4), firing the modified polypropylene, and removing impurities in the modified polypropylene to obtain the wave-transparent substrate; wherein the raw materials comprise the following components in parts by weight: 80-90 parts of polypropylene; 5-8 parts of low-density polyethylene; 3-6 parts of paraffin; 3-8 parts of inorganic filler; 1-2 parts of potassium permanganate. The wave-transparent substrate has the effects of simultaneously ensuring the strength performance and the wave-transparent performance of the wave-transparent substrate.

Description

Preparation method of wave-transparent base material and wave-transparent base material prepared by same

Technical Field

The application relates to the technical field of wave-transparent materials, in particular to a preparation method of a wave-transparent base material and the wave-transparent base material prepared by the same.

Background

The antenna is an important component of the base station and is a converter that converts the navigation wave propagating on the transmission line into an electromagnetic wave propagating in an unbounded medium or vice versa. Both the base station and the mobile terminal are used for transmitting and receiving electromagnetic waves, and the quality of the performance of the base station antenna directly influences the quality of mobile communication. Therefore, in order to protect the antenna, a radome is usually added to the antenna, and in order not to affect the performance of the antenna for transmitting signals, the radome is usually made of a wave-transparent material.

Because the radome also needs to withstand the action of the external severe environment in terms of mechanical properties, in order to ensure the strength performance of the radome, the traditional radome is generally formed by sandwiching a wave-transmitting material layer between two glass fiber plates.

With respect to the related art among the above, the inventors consider that there is a drawback in that the radome is liable to occur brittle fracture.

Disclosure of Invention

In order to improve the strength performance of a base material and ensure the wave-transmitting capacity of the base material, the application provides a preparation method of a wave-transmitting base material and the wave-transmitting base material prepared by the same.

In a first aspect, the present application provides a method for preparing a wave-transparent substrate, which adopts the following technical scheme:

a preparation method of a wave-transparent substrate comprises the following steps:

melting polypropylene to form pre-melted slurry;

step (2), adding low-density polyethylene, paraffin and inorganic filler into the pre-melted slurry, and uniformly stirring to form intermediate mixed slurry;

step (3), reducing the temperature of the intermediate mixed slurry to below 110 ℃, adding potassium permanganate, uniformly stirring, and reducing the temperature to perform solidification molding to obtain modified polypropylene;

step (4), firing the modified polypropylene at the temperature of 120-125 ℃ for 10-15min, and then firing the modified polypropylene at the temperature of 230-240 ℃ for 5-10min, removing impurities in the modified polypropylene, and obtaining the wave-transparent substrate;

wherein the raw materials comprise the following components in parts by weight:

80-90 parts of polypropylene;

5-8 parts of low-density polyethylene;

3-6 parts of paraffin;

3-8 parts of inorganic filler;

1-2 parts of potassium permanganate.

By adopting the technical scheme, the modified polypropylene is added with the low-density polyethylene, the paraffin, the inorganic filler and the potassium permanganate to be matched with each other in a synergistic manner, so that the melting point of the modified polypropylene is favorably improved, and the tensile strength and the bending strength of the prepared wave-transmitting base material are favorably improved.

And finally, firing to remove impurities in the modified polypropylene, so that the impurities in the modified polypropylene are volatilized, the wave-transparent substrate is favorable for finally forming a porous structure, the wave-transparent performance of the wave-transparent substrate is favorably improved, the dielectric constant of the wave-transparent substrate is lower, the wave-transparent substrate has higher strength and is difficult to influence, and the antenna housing prepared from the wave-transparent substrate is difficult to influence the transmission distance and the coverage area of signals.

Through controlling the mixing temperature of each component, be favorable to each component to be better evenly dispersed in modified polypropylene in order to exert the modified effect better, simultaneously, get rid of firing temperature and firing time among the impurity process through control, be favorable to impurity to get rid of completely better, still be favorable to modified polypropylene inside to form even cell better, make the dielectric constant who prepares the gained lower, still make the wave-transparent ability of wave-transparent substrate be difficult to receive the influence more when making the intensity performance of wave-transparent substrate increase, still be favorable to improving the wave-transparent ability of wave-transparent substrate better even.

The polypropylene is modified by adopting the substances and the method so as to improve the strength performance and the wave-transmitting performance of the wave-transmitting base material, thereby being beneficial to better reducing the production cost and leading the economic value of the wave-transmitting base material to be higher.

Preferably, the inorganic filler added in the step (2) comprises the following components in parts by mass:

1-1.5 parts of olivine;

1-3 parts of medical stone;

1-3.5 parts of calcium carbonate.

By adopting the technical scheme, the specific inorganic fillers in specific proportions are adopted to be matched with each other in a synergistic manner, so that the tensile strength and the bending strength of the modified polypropylene are favorably improved, and the strength performance of the prepared wave-transmitting base material is better.

Preferably, the inorganic filler in step (2) is crushed and sieved by a 300-400-mesh sieve before being added.

By adopting the technical scheme, the particle size of the inorganic filler is controlled, so that the inorganic filler is favorably and uniformly dispersed in the polypropylene in the stirring process, the polypropylene is favorably and better modified, and the prepared wave-transmitting base material has higher tensile strength and bending strength.

Preferably, in the step (2), various inorganic fillers of different types are uniformly mixed, and then the inorganic filler is added into the pre-melted slurry.

By adopting the technical scheme, different types of inorganic fillers are uniformly mixed and then stirred, so that the inorganic fillers are uniformly mixed and the modification effect is better exerted, the tensile strength and the bending strength of the modified polypropylene are better improved, and the strength performance of the prepared wave-transparent base material is higher.

Preferably, in the step (2), 0.5-1 part by mass of diisobutyl fumarate is also added.

By adopting the technical scheme, the modified polypropylene is modified by adding the diisobutyl fumarate, so that the compatibility of the modified polypropylene and the inorganic filler is favorably improved, the polypropylene is favorably modified by the inorganic filler, the tensile strength and the bending strength of the modified polypropylene obtained by modification are higher, and the tensile strength and the bending strength of the prepared wave-transparent base material are favorably improved.

Preferably, 0.1-0.3 part of p-phenylenediamine is also added in the step (2).

By adopting the technical scheme, the p-phenylenediamine is added, so that the effect of diisobutyl fumarate is promoted better, the inorganic filler is easily dispersed uniformly and is fused with the polypropylene better, the modification effect of the inorganic filler is promoted better, the tensile strength and the bending strength of the modified polypropylene are higher, and the strength performance of the wave-transmitting substrate is improved better.

Preferably, 1-2 parts by weight of talcum powder is also added in the step (3).

By adopting the technical scheme, the tensile strength and the bending strength of the modified polypropylene are favorably improved by adding the talcum powder, so that the strength performance of the prepared wave-transparent base material is better.

Preferably, the particle size of the talc powder added in the step (3) is 270-300 meshes.

By adopting the technical scheme, the particle size of the talcum powder is controlled, so that the talcum powder can be uniformly dispersed in the modified polypropylene to better improve the strength performance of the modified polypropylene, and the prepared wave-transmitting base material has higher tensile strength and bending strength.

Preferably, the melting temperature of step (1) is controlled to be 165-175 ℃.

By adopting the technical scheme, the melting temperature in the step (1) is controlled, so that the polypropylene can be completely melted better, the temperature is not easy to be too high, the resource waste is caused, the preparation conditions are easier to meet, and the production cost is reduced better.

In a second aspect, the present application provides a wave-transparent substrate, which adopts the following technical scheme:

the wave-transmitting base material is prepared by the preparation method of the wave-transmitting base material.

By adopting the technical scheme and the preparation method for the wave-transparent base material, the strength performance of the wave-transparent base material is favorably improved, the wave-transparent capacity of the wave-transparent base material is favorably improved, the production cost is favorably reduced, and the cost of the wave-transparent base material is reduced to 100 yuan/square meter from 500 yuan/square meter of 400 yuan.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the polypropylene is modified by adding the low-density polyethylene, the paraffin, the inorganic filler and the potassium permanganate to be matched with each other, so that the melting point of the modified polypropylene is favorably improved, and the tensile strength and the bending strength of the prepared wave-transmitting base material are favorably improved;

2. impurities in the modified polypropylene are removed through firing, so that the impurities in the modified polypropylene are volatilized, the wave-transmitting performance of the wave-transmitting base material is favorably improved, the wave-transmitting performance of the wave-transmitting base material is not easily influenced while the wave-transmitting base material has higher strength, and the transmission distance and the coverage area of signals are not easily influenced by an antenna housing or other protective shells prepared from the wave-transmitting base material;

3. the method is favorable for the components to be uniformly dispersed in the polypropylene better to exert the modification effect by controlling the mixing temperature of the components, is favorable for the impurities to be completely removed by controlling the firing temperature and the firing time in the impurity removing process, and is also favorable for the modified polypropylene to form uniform cells better inside, so that the dielectric constant of the prepared wave-transparent base material is lower, the strength performance of the wave-transparent base material is improved, the wave-transparent capacity of the wave-transparent base material is not easily influenced, and even the wave-transparent capacity of the wave-transparent base material is favorably and better improved;

4. the polypropylene is modified by adopting the substances and the method so as to improve the strength performance and the wave-transmitting performance of the wave-transmitting base material, thereby being beneficial to better reducing the production cost and leading the economic value of the wave-transmitting base material to be higher.

Drawings

FIG. 1 is a process flow diagram of a method of making a wave-transparent substrate according to the present invention.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

In the following examples, polypropylene was prepared from polypropylene available from Dehui plastics technologies, Inc. of Dongguan under the trade designation F200-16B.

In the following examples, the low density polyethylene was 523 low density polyethylene available from Huayun plastics materials Co., Ltd, Dongguan.

In the following examples, paraffin having a product number of 986562 from Jinan Kogyo commercial Co., Ltd was used.

In the following examples, the potassium permanganate is 7722-64-7 (Zhengzhou Shanba chemical products Co., Ltd.).

In the following examples, olivine of MGLS-001 from Zhengyang foundry, New Ministry, was used.

In the following examples, the medical stone is medical stone with a product number of 8-12 of Shijiazhuanlincheng mineral product trade company Limited.

In the following examples, the calcium carbonate used was a heavy calcium carbonate of model ZG-800 from Jinan Ruibao chemical Co., Ltd.

In the following examples, 5000 kaolin, a product of Guangdong-source Lei powder Co., Ltd, was used as the kaolin.

In the following examples, diisobutyl fumarate available from Shandong-West Asia chemical industry Co., Ltd, as xy05757 was used.

In the following examples, p-phenylenediamine available under the trade designation 106-50-3 from Anhui Denmark Chemicals, Inc. is used as p-phenylenediamine.

In the following examples, talc powder obtained from Delhi mineral processing Co., Ltd, Lingshou was used.

The embodiment of the application discloses a preparation method of a wave-transparent substrate.

Example 1

Referring to fig. 1, a method for preparing a wave-transparent substrate includes the following steps:

and (1) adding polypropylene into the reaction kettle, and raising the temperature to 165 ℃ to completely melt the polypropylene to form pre-melted slurry.

And (2) crushing the inorganic filler, and then screening the inorganic filler through a 270-mesh screen to form inorganic filler powder for later use.

Stirring the pre-melting slurry at the rotating speed of 350r/min, adding low-density polyethylene, paraffin and inorganic filler powder into the pre-melting slurry while stirring, and uniformly stirring to form intermediate mixed slurry.

And (3) reducing the temperature of the intermediate mixed slurry to 110 ℃, adding potassium permanganate while stirring, uniformly stirring, and reducing the temperature to room temperature to perform solidification molding to obtain the modified polypropylene.

And (4) firing the modified polypropylene at the temperature of 120 ℃ for 15min, firing the modified polypropylene at the temperature of 230 ℃ for 10min, and removing impurities in the modified polypropylene to obtain the wave-transmitting substrate.

In this example, the inorganic filler is olivine.

Wherein, the components and the content of the raw materials added in each step are shown in table 1, and the unit of the content of each component in table 1 is kg.

Example 2

The difference from example 1 is that:

the melting temperature in the step (1) is 180 ℃;

the inorganic filler in the step (2) is medical stone;

reducing the temperature of the intermediate mixed slurry to 108 ℃ in the step (3);

in the step (4), the modified polypropylene is firstly placed at the temperature of 123 ℃ and is fired for 12min, and then the modified polypropylene is placed at the temperature of 235 ℃ and is fired for 7 min.

Wherein, the components and the contents of the raw materials added in each step are shown in table 1.

Example 3

The difference from example 1 is that:

the melting temperature in the step (1) is 170 ℃;

the inorganic fillers in the step (2) are olivine and medical stone, and the olivine and the medical stone are respectively and sequentially added into the pre-melting slurry;

reducing the temperature of the intermediate mixed slurry to 105 ℃ in the step (3);

in the step (4), the modified polypropylene is firstly placed at the temperature of 125 ℃ and is fired for 10min, and then the modified polypropylene is placed at the temperature of 240 ℃ and is fired for 5 min.

Example 4

The difference from example 1 is that:

the melting temperature in the step (1) is 175 ℃;

the inorganic filler in the step (2) is olivine and calcium carbonate, and the olivine and the calcium carbonate are respectively and sequentially added into the pre-melting slurry;

reducing the temperature of the intermediate mixed slurry to 103 ℃ in the step (3);

in the step (4), the modified polypropylene is firstly placed at the temperature of 122 ℃ to be fired for 13min, and then the modified polypropylene is placed at the temperature of 233 ℃ to be fired for 9 min.

Example 5

The difference from example 1 is that:

the melting temperature in the step (1) is 173 ℃;

the inorganic fillers in the step (2) are medical stone and calcium carbonate, and the medical stone and the calcium carbonate are respectively and sequentially added into the pre-melting slurry;

in the step (4), the modified polypropylene is firstly placed at the temperature of 124 ℃ and is fired for 11min, and then the modified polypropylene is placed at the temperature of 238 ℃ and is fired for 6 min.

TABLE 1

	Example 1	Example 2	Example 3	Example 4	Example 5
						Polypropylene	80	83	86	90	85
Low density polyethylene	8	6	7	5	6.5
						Paraffin wax	5	6	4	3	4.5
OliveStone (stone)	8	0	2	1.5	0
						Medical stone	0	6	2.5	0	2.5
Calcium carbonate	0	0	0	1.5	2.5
						Potassium permanganate	1	1.3	1.6	2	1.5

Examples 6 to 13

The difference from example 5 is that: the composition and content of the inorganic filler are shown in table 2, and the unit of the content of each component in table 2 is kg.

TABLE 2

Example 14

The difference from example 8 is that: in the step (2), the inorganic filler is firstly crushed, then the inorganic filler is sieved by a 300-mesh screen to form inorganic filler powder, different types of inorganic filler powder are uniformly mixed to form inorganic filler mixed powder, and the inorganic filler mixed powder is added into the pre-melted slurry.

Example 15

The difference from example 8 is that: in the step (2), the inorganic filler is firstly crushed, then the inorganic filler is sieved by a 400-mesh screen to form inorganic filler powder, different types of inorganic filler powder are uniformly mixed to form inorganic filler mixed powder, and the inorganic filler mixed powder is added into the pre-melted slurry.

Examples 16 to 21

The difference from example 5 is that:

in the step (2), diisobutyl fumarate or/and p-phenylenediamine are also added.

The components and contents of the raw materials added in each step are shown in table 3, and the unit of the content of each component in table 3 is kg.

TABLE 3

Example 22

The difference from example 5 is that: 1kg of talcum powder with the particle size of 250 meshes is also added in the step (3).

Example 23

The difference from example 5 is that: in the step (3), 2kg of talcum powder with the particle size of 500 meshes is also added.

Example 24

The difference from example 23 is that: the particle size of the talcum powder added in the step (3) is 270 meshes.

Example 25

The difference from example 23 is that: the particle size of the talcum powder added in the step (3) is 300 meshes.

Examples 26 to 28

The difference from example 5 is that:

in the step (2), the inorganic filler is firstly crushed, then the inorganic filler is sieved by a 325-mesh screen to form inorganic filler powder, different types of inorganic filler powder are uniformly mixed to form inorganic filler mixed powder, and the inorganic filler mixed powder is added into the pre-melted slurry.

And the inorganic filler in the step (2) is olivine, medical stone and calcium carbonate.

In the step (2), diisobutyl fumarate and p-phenylenediamine are also added.

Talcum powder with the particle size of 350 meshes is also added in the step (3).

The components and contents of the raw materials added in each step are shown in table 4, and the unit of the content of each component in table 4 is kg.

TABLE 4

Comparative example 1

And bonding glass fiber plates on two sides of the polyimide composite plate by using an adhesive to form a wave-transmitting base material.

Wherein the glass fiber board is a glass fiber board of Jintai machinery, Inc. in Yinan county; the polyimide composite board is a polyimide composite board with the product number of 01 of green island rubber and plastic Limited company in Yangzhong.

Comparative example 2

The difference from example 5 is that: and (4) preparing the wave-transparent substrate without sintering and impurity removal in the step (4).

Comparative example 3

The difference from example 5 is that: the polypropylene is directly used as a wave-transmitting base material, and no modification and impurity removal operation is carried out on the polypropylene.

Comparative example 4

The difference from example 5 is that: in step (2), the low-density polyethylene was replaced with an equal amount of paraffin wax.

Comparative example 5

The difference from example 5 is that: in the step (2), the same amount of olivine is used for replacing paraffin.

Comparative example 6

The difference from example 5 is that: in the step (2), the same amount of low-density polyethylene is used for replacing olivine.

Comparative example 7

The difference from example 5 is that: in the step (3), potassium permanganate is replaced by the same amount of low-density polyethylene.

Experiment 1

The dielectric constant of the wave-transparent substrate prepared in the above examples and comparative examples was tested according to GB/T5597-1999 test method for complex dielectric constant of solid dielectric microwave.

Experiment 2

The tensile strength (MPa) of the wave-transparent substrates prepared in the above examples and comparative examples was measured according to GB 1040-79 "Plastic tensile test method".

Experiment 3

The flexural strength (MPa) of the wave-transparent substrates prepared in the above examples and comparative examples was measured according to GB 1042-79 "Plastic flexural test method".

The data from the above experiments are shown in Table 5.

TABLE 5

According to the comparison of the data of examples 1-5 in table 5, the reaction temperature and the reaction condition in examples 1-5 are different, and the tensile strength and the bending strength of example 5 are higher than those of examples 1-4 to some extent, which shows that by controlling the reaction temperature and the reaction condition during the reaction process, the polypropylene can be better modified, the tensile strength and the bending strength of the modified polypropylene can be higher, and the tensile strength and the bending strength of the prepared wave-transparent substrate can be better improved.

As can be seen from a comparison of the data in examples 1 to 13 in Table 5, in examples 1 to 2, olivine alone or medical stone alone was used as the inorganic filler, in examples 3 to 5, any two of olivine, medical stone and calcium carbonate were used as the inorganic fillers, in examples 6 to 8, olivine and medical stone in a specific ratio were used in combination with each other as the inorganic filler, in examples 9 to 10, olivine, medical stone and calcium carbonate out of the range of the ratio were used in combination with each other as the inorganic filler, and in examples 11 to 13, kaolin was used instead of olivine, medical stone and calcium carbonate, respectively, as the inorganic filler, whereas in examples 6 to 8, tensile strength and flexural strength were higher than those of examples 1 to 5 and examples 9 to 13, indicating that only by using olivine in a specific ratio, only, The medical stone and the calcium carbonate are mutually cooperated to better modify the polypropylene, so that the modified polypropylene has better strength performance, and the strength performance of the modified polypropylene is easily influenced if any component is lacked or the dosage proportion of any component is changed.

According to the comparison between the data of example 8 and examples 14-15 in table 5, the particle size of the inorganic filler is controlled and different types of inorganic fillers are uniformly mixed and then added into the pre-melted slurry, so that the inorganic filler is favorably and uniformly dispersed in the wave-transparent base material, the inorganic filler is favorably and better modified polypropylene, and the tensile strength and the bending strength of the prepared wave-transparent base material are favorably and better improved to a certain extent.

Comparing the data of example 5 with examples 16-21 in Table 5, it can be seen that diisobutyl fumarate is added separately in examples 16-17, p-phenylenediamine is added separately in examples 18-19, and diisobutyl fumarate and p-phenylenediamine are added simultaneously in examples 20-21, while tensile strength of examples 20-21 is higher than that of examples 16-17 and is higher than that of example 5, and tensile strength and flexural strength of examples 18-19 are similar to those of example 5, which shows that by adding diisobutyl fumarate separately, the inorganic filler is favorably compatible with polypropylene, so that the inorganic filler is favorably modified with polypropylene, and thus the tensile strength and flexural strength of modified polypropylene are favorably improved; the strength performance of the modified polypropylene is hardly influenced by adding the p-phenylenediamine alone, and the tensile strength and the bending strength of the modified polypropylene can be improved only when the diisobutyl fumarate and the p-phenylenediamine are synergistically matched with each other.

According to the comparison of the data of the example 5 and the examples 22-25 in table 5, the talc powder is added in the examples 22-25 more than in the example 5, the particle sizes of the talc powder of the examples 22-25 are different, and the tensile strength and the bending strength of the examples 24-25 are higher than those of the examples 22-23 and are higher than those of the example 5, which shows that the addition of the talc powder and the control of the particle size of the added talc powder are beneficial to better modifying the polypropylene, so that the tensile strength and the bending strength of the modified polypropylene are higher, and the strength performance of the wave-transmitting base material is better improved.

According to the comparison of the data of example 5 and examples 26-28 in table 5, examples 26-28 have added diisobutyl fumarate, p-phenylenediamine and talc more than example 5, and the inorganic filler of example 5 is olivine, medical stone and calcium carbonate in a specific ratio, and example 5 is that the inorganic filler is crushed and mixed before being added to the pre-melted slurry, the tensile strength and flexural strength of examples 26-28 are both higher than those of example 5, which shows that the tensile strength and flexural strength of modified polypropylene are improved better by adding diisobutyl fumarate, p-phenylenediamine and talc and by controlling the composition and dosage ratio of the inorganic filler, so that the strength performance of the wave-transparent substrate is better.

According to the comparison of the data of the example 5 and the comparative example 1 in the table 5, the method of modifying polypropylene in the invention is beneficial to better improving the strength performance of the wave-transparent base material, simultaneously making the wave-transparent performance of the wave-transparent base material less susceptible, and is beneficial to better reducing the dielectric constant of the wave-transparent base material, so that the wave-transparent rate of the wave-transparent base material is higher.

According to the comparison of the data of example 5 and comparative example 2 in table 5, the modified polypropylene is fired, and the temperature and time for firing the modified polypropylene are controlled, so that the wave-transmitting performance of the modified polypropylene is improved, the strength performance of the modified polypropylene is enhanced, and the wave-transmitting performance of the wave-transmitting substrate is not affected.

According to the comparison of the data of example 5 and comparative examples 3-7 in table 5, only when the modified polypropylene is prepared by using the low-density polyethylene, the paraffin, the inorganic filler and the potassium permanganate to cooperate with each other, the strength performance of the modified polypropylene can be better improved, and the strength performance of the prepared wave-transparent substrate is easily influenced in the absence of any substance.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A method for preparing a wave-transparent substrate is characterized by comprising the following steps: the method comprises the following steps:

melting polypropylene to form pre-melted slurry;

wherein the raw materials comprise the following components in parts by weight:

80-90 parts of polypropylene;

5-8 parts of low-density polyethylene;

3-6 parts of paraffin;

3-8 parts of inorganic filler;

1-2 parts of potassium permanganate.

2. The method for producing a wave-transparent substrate according to claim 1, wherein: the inorganic filler added in the step (2) comprises the following components in parts by weight:

1-1.5 parts of olivine;

1-3 parts of medical stone;

1-3.5 parts of calcium carbonate.

3. The method for producing a wave-transparent substrate according to claim 2, characterized in that: the inorganic filler in the step (2) is crushed before being added, and is treated by a 300-mesh and 400-mesh sieve.

4. The method for producing a wave-transparent substrate according to claim 2, characterized in that: in the step (2), various inorganic fillers of different types are uniformly mixed, and then the inorganic fillers are added into the pre-melted slurry.

5. The method for producing a wave-transparent substrate according to any one of claims 1 to 4, wherein: and 0.5-1 part by mass of diisobutyl fumarate is also added in the step (2).

6. The method for producing a wave-transparent substrate according to claim 5, wherein: 0.1-0.3 part of p-phenylenediamine is also added in the step (2).

7. The method for producing a wave-transparent substrate according to any one of claims 1 to 4, wherein: and 1-2 parts by mass of talcum powder is also added in the step (3).

8. The method for producing a wave-transparent substrate according to claim 7, wherein: the particle size of the talcum powder added in the step (3) is 270-300 meshes.

9. The method for producing a wave-transparent substrate according to claim 1, wherein: the melting temperature of the step (1) is controlled to be 170-175 ℃.

10. A wave-transparent substrate, characterized by: the wave-transparent substrate according to any one of claims 1 to 9.