Impact-resistant glass fiber composite material and preparation method thereof

Abstract

The invention discloses an impact-resistant glass fiber composite material, which is prepared from the following components in parts by weight: 60 to 75 parts of polypropylene, 15 to 25 parts of long glass fiber, 5 to 10 parts of glass fiber chopped strand mat, 7 to 15 parts of high heat-resistant polymer, 0.3 to 0.7 part of antioxidant, 0.8 to 1.2 parts of flame retardant, 4 to 6 parts of elastomer POE (Polyolefin Elastomer), 1.5 to 2.5 parts of rubber blend EPDM (Ethylene-Propylene-Diene Monomer), 0.8 to 1.2 parts of flexibilizer MBS and 0.8 to 1.2 parts of carbon fiber. The invention relates to the technical field of high polymer materials, in particular to a high polymer composite material. The high polymer composite material is prepared from, by weight, 20-30 parts of high polymer, 0.3-0.7 part of nano filler nano silicon and 0.5-8 parts of compound crystallization nucleating agent. The antioxidant prevents oxidation and aging of the material and prolongs the service life; the flame retardant improves the flame retardant property of the material and increases the safety; the nano filler nano silicon improves the mechanical property and wear resistance of the material; the compound crystallization nucleating agent improves the crystallization property of the material, and further improves the strength and heat resistance of the material.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer materials, and particularly relates to an impact-resistant glass fiber composite material and a preparation method thereof. Background Art

[0002] Non-metallic polymer materials, the most common ones such as traditional plastics like polyethylene, polypropylene, nylon, etc., have been widely used in our lives. Plastic products reinforced with glass fibers have higher tensile strength, flexural strength and impact resistance than ordinary plastics, and their density is also much lower than that of metals, making them ideal materials for achieving lightweight.

[0003] There are mainly three ways to produce glass fiber reinforced polypropylene composites. The first way is to add continuous fiber yarns into a twin-screw extruder, and use a reasonable screw design to cut the continuous fibers through screw shearing, mix and disperse them with the melt, and finally extrude and pelletize through a die head. This way has certain advantages in product cost, but it is very difficult to control the retained length and length distribution of glass fibers in the product, and the uniformity of the glass fiber content in the product is also poor, so the product quality fluctuates greatly. The second way is the prepreg tape process, that is, passing continuous fiber bundles through a resin melt or solution impregnation tank (die head) to obtain prepreg tapes, and then cutting the prepreg tapes into required lengths, generally about 10 mm. At this time, the length of the particles is the retained length of the glass fibers. After injection molding, the glass fiber length in the product is more than 1 mm. Due to the increase in the retained length of the glass fibers, the rigidity, strength, impact strength and creep resistance of the product are higher than those of ordinary short glass fiber reinforced products. However, this process is complex and requires a large equipment investment. Dozens of parallel continuous long fibers need to be fully impregnated by the melt in a very short impregnation head, which requires a very complex structural design to practice. And this structural design is also a highly confidential information of long fiber reinforced thermoplastic (LFT) production enterprises. The third way is the currently most widely used short glass fiber reinforcement technology, mixing short fibers with resin dry and then pelletizing through a single-screw extruder or a twin-screw extruder, or adding glass fibers from a side feeding port into the already molten and plasticized resin in a twin-screw extruder and then extruding and pelletizing. This process is simple to operate and requires little equipment investment. Especially when using a twin-screw extruder for production, the production capacity is also large. However, this method will cause serious breakage of glass fibers during processing, and the retained length of glass fibers in the product after injection molding is only in the range of 0.2 - 0.5 mm. Compared with LFT products, the performance is reduced by at least 20%. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an impact-resistant glass fiber composite material, which comprises the following components by weight: 60-75 parts of polypropylene, 15-25 parts of long glass fiber, 5-10 parts of chopped glass fiber mat, 7-15 parts of high heat-resistant polymer, 0.3-0.7 parts of antioxidant, 0.8-1.2 parts of flame retardant, 4-6 parts of elastomer POE, 1.5-2.5 parts of rubber blend EPDM, 0.8-1.2 parts of toughening agent MBS, 0.8-1.2 parts of carbon fiber, 0.3-0.7 parts of nano filler nano-silicon, and 0.5-8 parts of compound crystallization nucleating agent.

[0005] Further, the high heat-resistant polymer is composed of polyamide, polyether ether ketone and ceramic fiber, and the weight ratio of polyamide to polyether ether ketone is 1.5:1, wherein the ceramic fiber accounts for 2%-6% of the total mass.

[0006] Further, the compound crystallization nucleating agent is composed of β-nucleating agent and whiskers, the weight ratio of the β-nucleating agent to the whiskers is between 0.05-0.2, the β-nucleating agent is composed of sodium benzoate and N,N'-dicyclohexyl terephthalamide, and the whiskers are potassium titanate whiskers.

[0007] A preparation method of an impact-resistant glass fiber composite material comprises the following steps: Step S1: Pretreatment of raw materials. The long glass fiber and the chopped glass fiber mat are subjected to surface treatment, and treated with a silane coupling agent. The silane coupling agent is mixed with ethanol according to a ratio of 5%-20% to obtain a treatment solution, and the fiber material is soaked for 30 minutes - 120 minutes, and then taken out and dried. Step S2: Dispersing the ceramic fiber. Adding a dispersant and dispersing it under high-speed stirring. Adding nano-silicon into acetone and performing ultrasonic dispersion to obtain a nano-silicon solution. Mixing polyamide, polyether ether ketone and ceramic fiber to prepare a high heat-resistant polymer. Step S3: Adding the pretreated long glass fiber, chopped glass fiber mat, polypropylene, high heat-resistant polymer intermediate A, elastomer POE, rubber blend EPDM, toughening agent MBS, antioxidant, flame retardant, and carbon fiber into a high-speed mixer for mixing. The mixing time is 8-12 minutes, and the mixing speed is 600-1200 revolutions per minute. Adding the dispersed nano-silicon solution into the mixed material and continuing to mix for 5-8 minutes to obtain intermediate mixture A. Step S4: Preparing the compound crystallization nucleating agent. Placing sodium benzoate and N,N'-dicyclohexyl terephthalamide in an ultrasonic dispersion container for dispersion treatment and then taking them out. Adding the pretreated potassium titanate whiskers into the mixed solution and performing mechanical stirring. The stirring speed is 600 revolutions per minute, and stirring is continued at 50-60 °C for 1-3 hours to obtain the compound crystallization nucleating agent. Step S5: Put the intermediate mixture A into a high-speed mixer, add the prepared compound crystallization nucleating agent, mix for 15 - 30 minutes at a mixing speed of 600 - 1200 revolutions per minute, and keep the temperature at 50 - 60 °C to obtain the impact-resistant glass fiber composite material; Step S6: Add the impact-resistant glass fiber composite material prepared in Step S5 into a twin-screw extruder for extrusion. The temperature settings of the extruder are as follows: Zone 1: 180 - 200 °C, Zone 2: 200 - 220 °C, Zone 3: 220 - 240 °C, Zone 4: 220 - 240 °C, Zone 5: 220 - 240 °C, Zone 6: 220 - 240 °C, and the head temperature is 220 - 240 °C. The screw speed is 300 - 600 revolutions per minute.

[0008] Further, the preparation of the high heat-resistant polymer in Step S2 includes the following steps: Step a1: Dry the polyamide and polyether ether ketone in an oven at 80 °C for 2 - 4 hours to remove moisture, with pH = 7 - 9. After drying for 2 - 4 hours, adjust the oven temperature to 10 - 12 °C and dry for 30 - 60 minutes; Step a2: Add the dried polyamide and polyether ether ketone into a high-speed mixer and mix for 10 - 15 minutes at a mixing speed of 800 revolutions per minute; Step a3: Add ceramic fibers into the mixed polyamide and polyether ether ketone and continue to mix for 15 - 20 minutes to obtain the high heat-resistant polymer.

[0009] Further, the preparation of the compound crystallization nucleating agent includes the following steps: Step b1: Prepare the raw materials of sodium benzoate and N,N'-dicyclohexyl terephthalamide, mix them in a ratio of 1:1 to obtain the β-type nucleating agent, and prepare the potassium titanate whisker raw materials; Step b2: Put the mixed β-type nucleating agent raw materials into an ultrasonic dispersion container, add ethanol as the dispersion medium, with ethanol submerging the β-type nucleating agent. Turn on the ultrasonic disperser, set the power to 800 W, and disperse for 30 - 45 minutes to form a uniform suspension; Step b3: Put the potassium titanate whiskers into a container, wash them with deionized water to remove surface impurities, then dry them in an oven at 120 °C for 3 hours to ensure the whiskers are completely dry. Put the dried whiskers into a plasma treatment device for surface activation treatment, set the treatment power to 200 W - 300 W, and the treatment time to 20 minutes - 30 minutes; Step b4: Introduce the suspension of the ultrasonically dispersed β-nucleating agent prepared in step b2 into a blender, add the potassium titanate whiskers treated by the total plasma in step b3, start the blender, and the forming monitoring and stirring system controls the stirring speed at 600 - 800 revolutions per minute and the temperature at 50 - 60 °C, so that ethanol slowly volatilizes, and continue stirring and heating for 2 - 3 hours to obtain the compound crystallization nucleating agent.

[0010] Further, the forming monitoring and stirring system in step b4 consists of a blender, a stirring speed control module, a temperature control module, a monitoring module, and a central processor; The stirring speed control module includes a speed sensor; The temperature control module includes a temperature sensor, an intelligent temperature controller, and heating and cooling equipment; The monitoring module includes an ethanol volatilization gas sensor; The central processor includes a processing module, an alarm module, and a display screen.

[0011] Further, the forming monitoring and stirring system includes the following steps: Step one: Install a temperature sensor inside the blender, install a speed sensor on the rotating shaft of the blender, and install an ethanol volatilization gas sensor at the ventilation opening of the blender; Step two: Connect the temperature sensor to the central processor, and transmit the temperature data to the display screen in real time through a data transmission line; Set a timer in the central processor, and transmit the time data to the display screen in real time through a data transmission line; Connect the speed sensor to the central processor, and transmit the rotation speed data to the display screen in real time through a data transmission line; Connect the ethanol volatilization gas sensor to the central processor, and transmit the ethanol concentration data to the display screen in real time through a data transmission line; Step three: The operator sets the thresholds of temperature, stirring time, speed, and ethanol concentration in the processing module according to the traditional data; The traditional data refers to the data values of temperature, stirring time, speed, and ethanol concentration under traditional working conditions; Step four: Compare the data fed back by the temperature sensor with the temperature threshold through the processing module. If it is higher than the temperature threshold, use the cooling equipment to cool down through the intelligent temperature controller. If it is lower than the temperature threshold, use the heating equipment to heat up through the intelligent temperature controller; Establish a temperature compensation model and adjust the control parameters according to the actual situation; Step four: When the stirring time reaches the set value, the processing module automatically stops stirring and issues a prompt signal through the alarm module; Step 5: According to the data feedback from the speed sensor, use variable frequency speed regulation technology to adjust the output power of the motor and adjust the rotation speed of the stirring shaft; Step 6: When the ethanol concentration exceeds the set ethanol concentration threshold, the processing module will issue an alarm through the alarm module.

[0012] Furthermore, the temperature compensation model includes the following steps: Step 1: Conduct stirring experiments under different combinations of ambient temperature and stirring speed, record the corresponding actual stirring temperature and set stirring temperature, and collect sufficient data; Step 2: Preprocess the collected data, including data cleaning, outlier handling, and data normalization; The temperature compensation model is calculated using the linear regression algorithm: , where represents the temperature compensation value, V represents the stirring speed, represents the ambient temperature, , and are the regression coefficients to be estimated; Step 3: Divide the collected data into a training set and a test set, and use the least squares method on the training set to obtain the regression coefficients to be estimated and get the parameters of the model; Step 4: Input the stirring speed and ambient temperature in the test set data into the model to obtain the predicted temperature deviation value; Step 5: Use the established temperature compensation model to predict the deviation between the actual stirring temperature and the set temperature according to the current stirring speed and ambient temperature; Step 6: Combine the predicted temperature deviation with the set temperature, calculate the actual required heating or cooling power, and adjust the temperature through the mutual cooperation of the intelligent temperature controller and the heating and cooling equipment.

[0013] This application provides an impact-resistant glass fiber composite material and its preparation method, having the following technical effects: 1. This application adopts ultrasonic dispersion technology to fully disperse the β-type nucleating agent in ethanol to form a uniform suspension, improving the dispersibility and uniformity of the nucleating agent; Perform plasma treatment on the whiskers to increase the active groups on the whisker surface and improve the binding force with the β-type nucleating agent; During the compounding process, through mechanical stirring and heating, ethanol is slowly volatilized to ensure that the nucleating agent is evenly attached to the whisker surface, improving the stability of the compounded crystallization nucleating agent.

[0014] 2. The synergistic effect of long glass fibers, chopped glass mats, elastomer POE, rubber blend EPDM, and toughening agent MBS greatly improves the impact resistance of the material, enabling it to withstand large external force impacts without being easily damaged.

[0015] 3. The polyamide and polyetheretherketone in the high-heat-resistant polymer intermediate A have high heat resistance. Coupled with the effect of the high-temperature filler ceramic fiber, the material can still maintain good mechanical properties and dimensional stability in a high-temperature environment; The combination of various materials and reasonable formulation design also makes the material not easily become brittle in a low-temperature environment and has good cold resistance.

[0016] 4. Antioxidants prevent the material from oxidizing and aging, extending its service life; Flame retardants improve the flame retardant performance of the material, increasing safety; The nano-filler nano-silicon improves the mechanical properties and wear resistance of the material; The compound crystal nucleating agent improves the crystallization performance of the material, further enhancing the strength and heat resistance of the material. Specific Embodiments

[0017] The present invention will be further described in detail below in conjunction with specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limiting the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0018] Example 1, an impact-resistant glass fiber composite material, comprising the following weight components: 60 - 75 parts of polypropylene, 15 - 25 parts of long glass fibers, 5 - 10 parts of chopped glass mats, 7 - 15 parts of high-heat-resistant polymer, 0.3 - 0.7 parts of antioxidant, 0.8 - 1.2 parts of flame retardant, 4 - 6 parts of elastomer POE, 1.5 - 2.5 parts of rubber blend EPDM, 0.8 - 1.2 parts of toughening agent MBS, 0.8 - 1.2 parts of carbon fiber, 0.3 - 0.7 parts of nano-filler nano-silicon, and 0.5 - 8 parts of compound crystal nucleating agent.

[0019] The high-heat-resistant polymer is composed of polyamide, polyetheretherketone, and ceramic fiber. The weight ratio of polyamide to polyetheretherketone is 1.5:1, and the ceramic fiber accounts for 2% - 6% of the total mass.

[0020] The compound crystallization nucleating agent is composed of a β-type nucleating agent and whiskers. The weight ratio of the β-type nucleating agent to the whiskers is between 0.05 and 0.2. The β-type nucleating agent is composed of sodium benzoate and N,N'-dicyclohexyl terephthalamide, and potassium titanate whiskers are selected as the whiskers.

[0021] Furthermore, in the above technical solution, an impact-resistant glass fiber composite material includes the following weight components: 70 parts of polypropylene, 20 parts of long glass fibers, 7.5 parts of chopped glass fiber mats, 11 parts of a high heat-resistant polymer, 0.5 part of an antioxidant, 1 part of a flame retardant, 5 parts of an elastomer POE, 2 parts of a rubber blend EPDM, 1 part of a toughening agent MBS, 1 part of carbon fiber, 0.5 part of a nano filler nano silicon, and 4.25 parts of a compound crystallization nucleating agent.

[0022] The high heat-resistant polymer is composed of polyamide, polyether ether ketone, and ceramic fibers. The weight ratio of polyamide to polyether ether ketone is 1.5:1, and the ceramic fibers account for 4% of the total mass.

[0023] The compound crystallization nucleating agent is composed of a β-type nucleating agent and whiskers. The weight ratio of the β-type nucleating agent to the whiskers is 0.125. The β-type nucleating agent is composed of sodium benzoate and N,N'-dicyclohexyl terephthalamide, and potassium titanate whiskers are selected as the whiskers.

[0024] Example 2. On the basis of Example 1, a preparation method of an impact-resistant glass fiber composite material includes the following steps: Step S1: Pretreatment of raw materials. The long glass fibers and chopped glass fiber mats are subjected to surface treatment. They are treated with a silane coupling agent. The silane coupling agent is blended with ethanol in a ratio of 5%-20% to form a treatment solution. The fiber materials are soaked for 30 minutes to 120 minutes, and then taken out and dried. Step S2: Dispersing treatment of ceramic fibers. A dispersant is added and dispersed under high-speed stirring. The nano silicon is added to acetone and ultrasonically dispersed to obtain a nano silicon solution. The polyamide, polyether ether ketone, and ceramic fibers are mixed to prepare a high heat-resistant polymer. Step S3: The pretreated long glass fibers, chopped glass fiber mats, polypropylene, high heat-resistant polymer intermediate A, elastomer POE, rubber blend EPDM, toughening agent MBS, antioxidant, flame retardant, and carbon fiber are added to a high-speed mixer for mixing. The mixing time is 8 - 12 minutes, and the mixing speed is 600 - 1200 revolutions per minute. The dispersed nano silicon solution is added to the mixed materials and mixed for another 5 - 8 minutes to obtain intermediate mixture A. Step S4: Prepare a compound crystallization nucleating agent. Take sodium benzoate and N,N'-dicyclohexyl terephthalamide and place them in an ultrasonic dispersion container for dispersion treatment, and then take them out. Add pretreated potassium titanate whiskers to the mixed solution and conduct mechanical stirring at a stirring speed of 600 revolutions per minute. Continuously stir at 50 - 60 °C for 1 - 3 hours to obtain the compound crystallization nucleating agent; Step S5: Put the intermediate mixture A into a high-speed mixer, add the prepared compound crystallization nucleating agent, mix for 15 - 30 minutes at a mixing speed of 600 - 1200 revolutions per minute, and keep the temperature at 50 - 60 °C to obtain the impact-resistant glass fiber composite material; Step S6: Add the impact-resistant glass fiber composite material prepared in Step S5 to a twin-screw extruder for extrusion. The temperature settings of the extruder are as follows: Zone 1: 180 - 200 °C, Zone 2: 200 - 220 °C, Zone 3: 220 - 240 °C, Zone 4: 220 - 240 °C, Zone 5: 220 - 240 °C, Zone 6: 220 - 240 °C, and the head temperature is 220 - 240 °C. The screw speed is 300 - 600 revolutions per minute.

[0025] The preparation of the high heat-resistant polymer in Step S2 includes the following steps: Step a1: Dry polyamide and polyether ether ketone in an oven at 80 °C for 2 - 4 hours to remove moisture, with pH = 7 - 9. After drying for 2 - 4 hours, adjust the oven temperature to 10 - 12 °C and dry for 30 - 60 minutes; Step a2: Add the dried polyamide and polyether ether ketone to a high-speed mixer and mix for 10 - 15 minutes at a mixing speed of 800 revolutions per minute; Step a3: Add ceramic fibers to the mixed polyamide and polyether ether ketone and continue to mix for 15 - 20 minutes to obtain the high heat-resistant polymer.

[0026] The preparation of the compound crystallization nucleating agent includes the following steps: Step b1: Prepare raw materials of sodium benzoate and N,N'-dicyclohexyl terephthalamide, mix them in a ratio of 1:1 to obtain a β-type nucleating agent, and prepare raw materials of potassium titanate whiskers; Step b2: Put the mixed β-type nucleating agent raw materials into an ultrasonic dispersion container, add ethanol as a dispersion medium, immerse the β-type nucleating agent with ethanol, turn on the ultrasonic disperser, set the power to 800 W, and disperse for 30 - 45 minutes to form a uniform suspension; Step b3: Put the potassium titanate whiskers into a container, wash them with deionized water to remove impurities on the surface, and then dry them in an oven at 120 °C for 3 hours to ensure that the whiskers are completely dry. Put the dried whiskers into a plasma treatment device for surface activation treatment, set the treatment power to 200W - 300W, and the treatment time to 20 minutes - 30 minutes; Step b4: Pour the suspension of the ultrasonic-dispersed β-nucleating agent prepared in step b2 into a blender, add the potassium titanate whiskers treated by plasma in step b3, start the blender, and the forming monitoring and stirring system controls the stirring speed at 600 - 800 revolutions per minute and the temperature at 50 - 60 °C to slowly volatilize ethanol. Keep stirring and heating for 2 - 3 hours to obtain the compound crystallization nucleating agent.

[0027] The forming monitoring and stirring system in step b4 consists of a blender, a stirring speed control module, a temperature control module, a monitoring module, and a central processor; The stirring speed control module includes a speed sensor; The temperature control module includes a temperature sensor, an intelligent temperature controller, and heating and cooling equipment; The monitoring module includes an ethanol volatilization gas sensor; The central processor includes a processing module, an alarm module, and a display screen.

[0028] The forming monitoring and stirring system includes the following steps: Step one: Install a temperature sensor inside the blender, install a speed sensor on the rotating shaft of the blender, and install an ethanol volatilization gas sensor at the ventilation opening of the blender; Step two: Connect the temperature sensor to the central processor and transmit the temperature data to the display screen in real time through a data transmission line; Set a timer in the central processor and transmit the time data to the display screen in real time through a data transmission line; Connect the speed sensor to the central processor and transmit the rotation speed data to the display screen in real time through a data transmission line; Connect the ethanol volatilization gas sensor to the central processor and transmit the ethanol concentration data to the display screen in real time through a data transmission line; Step three: The operator sets the thresholds of temperature, stirring time, speed, and ethanol concentration according to the traditional data in the processing module settings; Traditional data refers to the data values of temperature, stirring time, speed, and ethanol concentration under traditional working conditions; Step four: Compare the data fed back by the temperature sensor with the temperature threshold through the processing module. If it is higher than the temperature threshold, use the cooling equipment to cool down through the intelligent temperature controller. If it is lower than the temperature threshold, use the heating equipment to heat up through the intelligent temperature controller; Establish a temperature compensation model and adjust the control parameters according to the actual situation; Step 4: When the stirring time reaches the set value, the processing module automatically stops stirring and sends a prompt signal through the alarm module; Step 5: According to the data fed back by the speed sensor, use variable frequency speed regulation technology to adjust the output power of the motor and adjust the rotational speed of the stirring shaft; Step 6: When the ethanol concentration exceeds the set ethanol concentration threshold, the processing module will send an alarm through the alarm module.

[0029] The temperature compensation model includes the following steps: Step 1: Conduct stirring experiments under different combinations of ambient temperature and stirring speed, record the corresponding actual stirring temperature and set stirring temperature, and collect enough data; Step 2: Preprocess the collected data, including data cleaning, outlier handling, and data normalization; The temperature compensation model is calculated using the linear regression algorithm: , where represents the temperature compensation value, V represents the stirring speed, represents the ambient temperature, , and are the regression coefficients to be estimated; Step 3: Divide the collected data into a training set and a test set. Use the least squares method on the training set to obtain the regression coefficients to be estimated. By minimizing the sum of the squares of the errors between the actual stirring temperature and the model-predicted temperature, determine , and , and obtain the parameters of the model; Step 4: Input the stirring speed and ambient temperature in the test set data into the model to obtain the predicted temperature deviation value; Step 5: Use the established temperature compensation model to predict the deviation between the actual stirring temperature and the set temperature according to the current stirring speed and ambient temperature; Step 6: Combine the predicted temperature deviation with the set temperature, calculate the actual required heating or cooling power, and cooperate with the intelligent temperature controller and heating and cooling equipment to adjust the temperature.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. Structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art without special instructions and limitations.

Claims

1. An impact-resistant glass fiber composite material, characterized in that, It includes the following weight components: 60 - 75 parts of polypropylene, 15 - 25 parts of long glass fiber, 5 - 10 parts of chopped glass fiber mat, 7 - 15 parts of high heat-resistant polymer, 0.3 - 0.7 parts of antioxidant, 0.8 - 1.2 parts of flame retardant, 4 - 6 parts of elastomer POE, 1.5 - 2.5 parts of rubber blend EPDM, 0.8 - 1.2 parts of toughening agent MBS, 0.8 - 1.2 parts of carbon fiber, 0.3 - 0.7 parts of nano filler nano silicon, and 0.5 - 8 parts of compound crystal nucleating agent.

2. An impact-resistant glass fiber composite material according to claim 1, characterized in that, The high heat-resistant polymer consists of polyamide, polyether ether ketone and ceramic fiber, and the weight ratio of polyamide to polyether ether ketone is: 1.5:1, where the ceramic fiber accounts for 2% - 6% of the total mass.

3. An impact-resistant glass fiber composite material according to claim 1, characterized in that, The compound crystal nucleating agent consists of β-type nucleating agent and whiskers. The weight ratio of the β-type nucleating agent to the whiskers is between 0.05 - 0.

2. The β-type nucleating agent consists of sodium benzoate and N,N'-dicyclohexyl terephthalamide, and the whiskers are potassium titanate whiskers.

4. A preparation method of an impact-resistant glass fiber composite material, characterized in that, It includes the following steps: Step S1: Pretreatment of raw materials. The long glass fiber and chopped glass fiber mat are surface-treated with a silane coupling agent. The silane coupling agent is mixed with ethanol at a ratio of 5% - 20% to form a treatment solution. The fiber materials are soaked for 30 - 120 minutes and then taken out and dried. Step S2: Dispersing treatment of ceramic fiber. A dispersant is added and dispersed under high-speed stirring. Nano silicon is added to acetone and ultrasonically dispersed to obtain a nano silicon solution. Polyamide, polyether ether ketone and ceramic fiber are mixed to prepare a high heat-resistant polymer. Step S3: Put the pretreated long glass fiber, chopped glass fiber mat, polypropylene, high heat-resistant polymer intermediate A, elastomer POE, rubber blend EPDM, toughening agent MBS, antioxidant, flame retardant, and carbon fiber into a high-speed mixer for mixing. The mixing time is 8 - 12 minutes and the mixing speed is 600 - 1200 revolutions per minute. Add the well-dispersed nano silicon solution to the mixed materials and continue mixing for 5 - 8 minutes to obtain intermediate mixture A. Step S4: Prepare the compound crystal nucleating agent. Sodium benzoate and N,N'-dicyclohexyl terephthalamide are placed in an ultrasonic dispersion container for dispersion treatment and then taken out. Pretreated potassium titanate whiskers are added to the mixed solution and mechanically stirred at a speed of 600 revolutions per minute and continuously stirred at 50 - 60 °C for 1 - 3 hours to obtain the compound crystal nucleating agent. Step S5: Put intermediate mixture A into a high-speed mixer, add the prepared compound crystal nucleating agent, mix for 15 - 30 minutes at a mixing speed of 600 - 1200 revolutions per minute, and keep the temperature at 50 - 60 °C to obtain the impact-resistant glass fiber composite material. Step S6: Add the impact-resistant glass fiber composite material prepared in Step S5 into a twin-screw extruder for extrusion. The temperature settings of the extruder are as follows: Zone 1: 180 - 200 °C, Zone 2: 200 - 220 °C, Zone 3: 220 - 240 °C, Zone 4: 220 - 240 °C, Zone 5: 220 - 240 °C, Zone 6: 220 - 240 °C, and the head temperature is 220 - 240 °C. The screw speed is 300 - 600 revolutions per minute.

5. The preparation method of an impact-resistant glass fiber composite material according to claim 4, wherein, The preparation of the high heat-resistant polymer in Step S2 includes the following steps: Step a1: Dry polyamide and polyether ether ketone in an oven at 80 °C for 2 - 4 hours to remove moisture, with pH = 7 - 9. After drying for 2 - 4 hours, adjust the oven temperature to 10 - 12 °C and dry for 30 - 60 minutes. Step a2: Add the dried polyamide and polyether ether ketone into a high-speed mixer and mix for 10 - 15 minutes at a mixing speed of 800 revolutions per minute. Step a3: Add ceramic fibers into the mixed polyamide and polyether ether ketone and continue to mix for 15 - 20 minutes to obtain the high heat-resistant polymer.

6. The preparation method of an impact-resistant glass fiber composite material according to claim 4, characterized in that, The preparation of the compound crystal nucleating agent includes the following steps: Step b1: Prepare raw materials of sodium benzoate and N,N'-dicyclohexyl terephthalamide, mix them in a ratio of 1:1 to obtain the β-type nucleating agent, and prepare potassium titanate whisker raw materials. Step b2: Put the mixed β-type nucleating agent raw materials into an ultrasonic dispersion container, add ethanol as the dispersion medium, with ethanol submerging the β-type nucleating agent. Turn on the ultrasonic disperser, set the power to 800 W, and the dispersion time to 30 - 45 minutes to form a uniform suspension. Step b3: Put the potassium titanate whiskers into a container, wash them with deionized water to remove surface impurities, then dry them in an oven at 120 °C for 3 hours to ensure the whiskers are completely dry. Put the dried whiskers into a plasma treatment device for surface activation treatment, set the treatment power to 200 W - 300 W, and the treatment time to 20 minutes - 30 minutes. Step b4: Import the ultrasonic-dispersed β-type nucleating agent suspension prepared in Step b2 into a mixer, add the potassium titanate whiskers treated by plasma in Step b3, start the mixer, and the forming monitoring and stirring system controls the stirring speed at 600 - 800 revolutions per minute and the temperature at 50 - 60 °C to slowly volatilize ethanol. Continuously stir and heat for 2 - 3 hours to obtain the compound crystal nucleating agent.

7. According to the method for preparing an impact-resistant glass fiber composite material as claimed in claim 6, wherein the forming monitoring and stirring system in Step b4 consists of a mixer, a stirring speed control module, a temperature control module, a monitoring module, and a central processor; the stirring speed control module includes a speed sensor; the temperature control module includes a temperature sensor, an intelligent temperature controller, and heating and cooling equipment; the monitoring module includes an ethanol volatilization gas sensor; the central processor includes a processing module, an alarm module, and a display screen.

8. The preparation method of an impact-resistant glass fiber composite material according to claim 7, characterized in that, The forming monitoring and stirring system includes the following steps: Step 1: Install a temperature sensor inside the blender, a speed sensor on the rotating shaft of the blender, and an ethanol volatile gas sensor at the ventilation opening of the blender; Step 2: Connect the temperature sensor to the central processor and transmit the temperature data to the display screen in real time through a data transmission line; Set a timer in the central processor and transmit the time data to the display screen in real time through a data transmission line; Connect the speed sensor to the central processor and transmit the rotational speed data to the display screen in real time through a data transmission line; Connect the ethanol volatile gas sensor to the central processor and transmit the ethanol concentration data to the display screen in real time through a data transmission line; Step 3: The operator sets the thresholds of temperature, stirring time, speed, and ethanol concentration according to the traditional data in the processing module settings; The traditional data refers to the data values of temperature, stirring time, speed, and ethanol concentration under traditional working conditions; Step 4: Compare the data feedback by the temperature sensor with the temperature threshold through the processing module. If it is higher than the temperature threshold, use a cooling device to cool down through an intelligent temperature controller. If it is lower than the temperature threshold, use a heating device to heat up through an intelligent temperature controller; Establish a temperature compensation model and adjust the control parameters according to the actual situation; Step 4: When the stirring time reaches the set value, the processing module automatically stops stirring and issues a prompt signal through the alarm module; Step 5: Adjust the output power of the motor and the rotational speed of the stirring shaft according to the data feedback by the speed sensor by using variable frequency speed regulation technology; Step 6: When the ethanol concentration exceeds the set ethanol concentration threshold, the processing module will issue an alarm through the alarm module.

9. The preparation method of an impact-resistant glass fiber composite material according to claim 8, characterized in that, The temperature compensation model includes the following steps: Step 1: Conduct stirring experiments under different combinations of ambient temperature and stirring speed, record the corresponding actual stirring temperature and set stirring temperature, and collect enough data; Step 2: Preprocess the collected data, including data cleaning, outlier processing, and data normalization; The temperature compensation model uses a linear regression algorithm for calculation: ， Among them represents the temperature compensation value, V represents the stirring speed, represents the ambient temperature, , and are regression coefficients to be estimated; Step 3: Divide the collected data into a training set and a test set. Use the least squares method on the training set to obtain the regression coefficients to be estimated and get the parameters of the model; Step 4: Input the stirring speed and ambient temperature in the test set data into the model to obtain the predicted temperature deviation value; Step 5: Use the established temperature compensation model to predict the deviation between the actual stirring temperature and the set temperature according to the current stirring speed and ambient temperature; Step 6: Combine the predicted temperature deviation with the set temperature, calculate the actual required heating or cooling power, and cooperate with the intelligent temperature controller and heating and cooling equipment to adjust the temperature.

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