Air conditioner fan material and manufacturing method

Abstract

The invention relates to the technical field of air conditioner fans, and discloses an air conditioner fan material which comprises a basic polymer, reinforced fibers, an antibacterial agent, an antistatic agent, a dispersing agent and an antioxidant, and a manufacturing method of the air conditioner fan material comprises the following steps: S1, raw material pretreatment, S2, mixing and stirring, S3, melt extrusion, S4, pelletizing, S5, injection molding and S6, post-treatment. The material produced by the method is excellent in mechanical property, 50-60 parts by weight of polycarbonate (PC) and 20-30 parts by weight of basalt fiber in the material have a synergistic effect, the strength and modulus of the air conditioner fan are greatly improved, the high-strength characteristic of the basalt fiber enables the fan to bear larger centrifugal force during high-speed operation, and the service life of the fan is prolonged. The problem of deformation or breakage caused by overlarge mechanical stress is reduced, and the service life of the fan is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning fans, and in particular to an air-conditioning fan material and a manufacturing method thereof. Background Art

[0002] With the improvement of people's living standards and the rapid development of industry, air conditioning fans, as devices that combine cooling and ventilation functions, have been widely used in homes, offices, industrial workshops, and other scenarios. However, the materials used in traditional air conditioning fans have many shortcomings and cannot meet the growing demand for use.

[0003] Traditional air conditioner fan blades and other components are often made of common plastics, such as ABS (acrylonitrile-butadiene-styrene). While ABS plastic offers low cost and excellent processing properties, it has limited mechanical strength and heat resistance. When the fan is running at high speeds, it can easily deform or even break due to excessive centrifugal force, affecting the normal operation and service life of the equipment. Furthermore, over long-term use, common plastics are prone to static electricity accumulation on their surfaces, attracting large amounts of dust and bacteria. This not only affects appearance and hygiene, but also increases energy consumption and the risk of failure.

[0004] In some applications where high material performance is crucial, such as high-temperature industrial workshops, traditional materials lack heat resistance and are prone to softening and aging. In environments with stringent hygiene requirements, such as medical facilities, traditional materials lack effective antibacterial properties and struggle to meet hygienic standards. Furthermore, traditional materials have poor weather resistance and are prone to performance degradation from prolonged exposure to sunlight, rain, and other natural elements, shortening the lifespan of air conditioning fans.

[0005] To address the above issues, the industry has been searching for materials with better performance. While some improved materials have been proposed, such as glass fiber reinforced plastics, glass fiber has issues such as brittleness, easy breakage, and significant wear and tear on processing equipment. Some antibacterial materials also have drawbacks such as a single antibacterial effect and a short shelf life. Therefore, developing an air conditioning fan material that combines high strength, antibacterial properties, antistatic properties, good weather resistance, and excellent processing performance has become an urgent need in the industry. This innovative air conditioning fan material and manufacturing method was developed in this context. Summary of the Invention

[0006] (1) Technical problems solved In view of the shortcomings of the existing technology, the present invention provides an air-conditioning fan material and a manufacturing method, which have the advantages of excellent mechanical properties of the material and solve the problem of poor mechanical properties of traditional materials.

[0007] (2) Technical solution In order to achieve the purpose of excellent mechanical properties of the above-mentioned material, the present invention provides the following technical solution: an air conditioning fan material, comprising the following components: a base polymer, reinforcing fiber, an antibacterial agent, an antistatic agent, a dispersant, and an antioxidant; Among them, the base polymer: high-performance polycarbonate (PC) is selected as the base polymer; Among them, the reinforcing fiber: uses basalt fiber with special surface treatment as the reinforcing material; Among them, antibacterial agent: use composite antibacterial agent, which is composed of nano silver ion antibacterial agent and nano zinc oxide antibacterial agent; Among them, antistatic agent: add long-lasting antistatic agent, such as polyether ester amide antistatic agent; Among them, the dispersant: a high molecular weight fatty acid ester dispersant is selected; Among them, the antioxidant is a compound of hindered phenol antioxidant and phosphite antioxidant.

[0008] Preferably, the polycarbonate accounts for 50-60 parts by weight in the material; Among them, the reinforcing fiber accounts for 20-30 parts by weight; Among them, the nano silver ion antibacterial agent accounts for 0.5-1.5 parts by weight, and the nano zinc oxide antibacterial agent accounts for 1-2 parts by weight. For example, in medical places with high hygiene requirements or air conditioning fans for home use, the nano silver ion antibacterial agent can be set to 1 part by weight and the nano zinc oxide antibacterial agent can be set to 1.5 parts by weight; Among them, the antistatic agent accounts for 1-3 parts by weight. For air-conditioning fans used in dusty industrial environments, the antistatic agent can be set to 2.5 parts by weight. Wherein, the dispersant accounts for 0.5-1 parts by weight; Among them, the hindered phenol antioxidant accounts for 0.2-0.5 parts by weight, and the phosphite antioxidant accounts for 0.2-0.5 parts by weight.

[0009] Preferably, a method for manufacturing a material for an air conditioner fan comprises the following steps: S1 raw material pretreatment, S2 mixing and stirring, S3 melt extrusion, S4 pelletizing, S5 injection molding, and S6 post-processing; Among them, S1 raw material pretreatment: Place the basalt fiber in a high-temperature oven and dry it at 150-200°C for 2-3 hours to remove moisture and impurities on the fiber surface and improve its compatibility with the base polymer; The nano silver ion antibacterial agent, the nano zinc oxide antibacterial agent, the antistatic agent, the dispersant, the hindered phenol antioxidant and the phosphite antioxidant are mixed uniformly according to a predetermined ratio to obtain a mixed additive.

[0010] Preferably, the S2 is mixed and stirred: Add the dried basalt fibers and 50-60 parts by weight of polycarbonate particles into a high-speed blender and stir at 800-1200 rpm for 10-15 minutes to uniformly disperse the basalt fibers in the polycarbonate particles. Then add the mixed additives and continue stirring for 15-20 minutes to ensure that all additives are evenly dispersed in the mixture of polycarbonate and basalt fiber.

[0011] Preferably, the S3 is melt-extruded: The stirred material is added to the twin-screw extruder. The temperature of each section of the twin-screw extruder is set as follows: the feeding section temperature is 180-200℃, the melting section temperature is 230-250℃, and the homogenization section temperature is 240-260℃. The material is melted, mixed, and extruded in the extruder to form a uniform strip. The strips are cooled in a water cooling tank with the water temperature controlled at 15-25°C, so that the strips are cooled and solidified quickly.

[0012] Preferably, the S4 pelletizing: The cooled strips enter the pelletizer and are cut into uniform pellets. The pellet size is adjusted according to the requirements of subsequent injection molding, and the general length is 3-5 mm.

[0013] Preferably, the S5 injection molding: The chopped pellets are added to the barrel of the injection molding machine. The barrel temperature of the injection molding machine is set to 220-240℃, and the mold temperature is controlled at 40-60℃. The molten material is injected into the fan mold through the injection molding machine. The holding time is 5-10 seconds and the cooling time is 15-20 seconds to form the various components of the air conditioner fan.

[0014] Preferably, the S6 post-processing: Deburr the injection molded fan components to remove burrs and surface defects; Perform performance tests on fan components, including strength tests, antibacterial performance tests, antistatic performance tests, etc., to ensure that product quality meets requirements.

[0015] (3) Beneficial effects Compared with the prior art, the present invention provides an air conditioning fan material and a manufacturing method, which have the following beneficial effects: 1. This air conditioning fan material and manufacturing method: The material produced by this method has excellent mechanical properties: 50-60 parts by weight of polycarbonate (PC) and 20-30 parts by weight of basalt fiber in the material work synergistically to significantly improve the strength and modulus of the air conditioning fan. The high strength of basalt fiber enables the fan to withstand greater centrifugal forces at high speeds, reducing deformation or fracture caused by excessive mechanical stress and extending the fan's service life. For example, in tests of long-term high-speed operation, fan components using this material showed fatigue resistance improved by more than 30% compared to traditional materials.

[0016] 2. The air conditioning fan material and manufacturing method. The material produced by this method has outstanding antibacterial properties: the addition of a composite antibacterial agent (0.5-1.5 parts by weight of nano-silver ion antibacterial agent and 1-2 parts by weight of nano-zinc oxide antibacterial agent) gives the material excellent antibacterial ability. Nano-silver ions can destroy bacterial cell membranes and enzyme systems, inhibiting bacterial reproduction; nano-zinc oxide exerts its antibacterial effect by releasing reactive oxygen species. Testing has shown that the material has an antibacterial rate of over 99% against common bacteria such as Escherichia coli and Staphylococcus aureus, effectively reducing odor and health hazards caused by bacterial growth during fan use. It is particularly suitable for environments with high hygiene requirements, such as homes and medical facilities.

[0017] 3. The air-conditioning fan material and manufacturing method. The material produced by this method has a significant antistatic effect: 1-3 parts by weight of polyetheresteramide antistatic agent can reduce the surface resistance of the material and reduce static electricity accumulation, which makes the fan less likely to absorb dust during operation. This not only maintains the cleanliness of the fan and reduces the number of cleanings, but also avoids the impact of dust accumulation on the fan's heat dissipation performance and service life. In dusty industrial environments, fans using this material have a surface dust adhesion reduced by more than 60% compared with traditional materials.

[0018] 4. The air-conditioning fan material and manufacturing method. The material produced by this method has good weather resistance and stability: the combined use of hindered phenols and phosphite antioxidants effectively prevents the oxidative degradation of the material during processing and use; the absorption of ultraviolet rays by nano zinc oxide also enhances the weather resistance of the material. Even in harsh environments such as high temperature, humidity or direct sunlight, the performance of the material can remain stable and is not prone to aging, discoloration, etc., ensuring long-term and reliable operation of the fan.

[0019] 5. The air-conditioning fan material and manufacturing method, the material produced by this method has excellent processing performance: the addition of high molecular weight fatty acid ester dispersants makes the various components evenly dispersed in the polycarbonate matrix, ensuring the consistency of material properties. During the melt extrusion and injection molding process, the material has good fluidity and is easy to process and shape. It can accurately replicate the shape of the mold, produce fan components with high dimensional accuracy and good surface quality, and reduce the scrap rate in the production process. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, those skilled in the art who do not make original embodiments shall fall within the scope of protection of the present invention.

[0021] This solution provides a technical solution, specifically, an air conditioning fan material, comprising the following components: a base polymer, reinforcing fiber, an antibacterial agent, an antistatic agent, a dispersant, and an antioxidant; Base polymer: High-performance polycarbonate (PC) is used as the base polymer, which has excellent mechanical properties, heat resistance, and weather resistance. The proportion of polycarbonate in the material is 50-60 parts by weight. For example, in some applications with high strength and heat resistance requirements, the proportion of polycarbonate can be set to 55 parts by weight; Reinforcement fiber: Specially surface-treated basalt fiber is used as the reinforcing material. Basalt fiber has the advantages of high strength, high modulus, high temperature resistance, and chemical corrosion resistance, which can significantly improve the mechanical properties of the material. Basalt fiber accounts for 20-30 parts by weight. Taking the common use environment of air conditioning fans as an example, a basalt fiber content of 25 parts by weight can be selected. This achieves a good balance between strength and cost. Antimicrobial agent: A composite antimicrobial agent is used, consisting of nano silver ion antimicrobial agent and nano zinc oxide antimicrobial agent. Nano silver ion antimicrobial agent has broad-spectrum antimicrobial properties and can effectively inhibit the growth of a variety of bacteria and fungi; nano zinc oxide antimicrobial agent not only has antimicrobial properties, but can also absorb ultraviolet rays to a certain extent, enhancing the weather resistance of the material. Nano silver ion antimicrobial agent accounts for 0.5-1.5 parts by weight, and nano zinc oxide antimicrobial agent accounts for 1-2 parts by weight. For example, in medical facilities with high hygiene requirements or in air conditioning fans for home use, the nano silver ion antimicrobial agent can be set to 1 part by weight and the nano zinc oxide antimicrobial agent can be set to 1.5 parts by weight; Antistatic agent: Adding a long-lasting antistatic agent, such as a polyetheresteramide antistatic agent, can effectively reduce static electricity accumulation on the material surface and reduce dust adsorption. The antistatic agent accounts for 1-3 parts by weight. For air-conditioning fans used in dusty industrial environments, the antistatic agent ratio can be set to 2.5 parts by weight. Dispersant: Use high molecular weight fatty acid ester dispersant to help various additives disperse evenly in the base polymer to ensure the consistency of material properties. The dispersant accounts for 0.5-1 parts by weight. Antioxidant: A combination of hindered phenol antioxidants and phosphite antioxidants is used to effectively prevent oxidative degradation of the material during processing and use, thereby extending the service life of the material. The hindered phenol antioxidant accounts for 0.2-0.5 parts by weight, and the phosphite antioxidant accounts for 0.2-0.5 parts by weight.

[0022] A method for manufacturing air conditioner fan materials, comprising the following steps: S1: raw material pretreatment: Place the basalt fiber in a high-temperature oven and dry it at 150-200°C for 2-3 hours to remove moisture and impurities on the fiber surface and improve its compatibility with the base polymer; The nano silver ion antibacterial agent, the nano zinc oxide antibacterial agent, the antistatic agent, the dispersant, the hindered phenol antioxidant and the phosphite antioxidant are mixed uniformly according to a predetermined ratio to obtain a mixed additive; S2 Mixing and stirring: Add the dried basalt fibers and 50-60 parts by weight of polycarbonate particles into a high-speed blender and stir at 800-1200 rpm for 10-15 minutes to uniformly disperse the basalt fibers in the polycarbonate particles. Then add the mixed additives and continue stirring for 15-20 minutes to ensure that all additives are evenly dispersed in the mixture of polycarbonate and basalt fiber; S3 melt extrusion: The stirred material is added to the twin-screw extruder. The temperature of each section of the twin-screw extruder is set as follows: the feeding section temperature is 180-200℃, the melting section temperature is 230-250℃, and the homogenization section temperature is 240-260℃. The material is melted, mixed, and extruded in the extruder to form a uniform strip. The strips are cooled in a water cooling tank with the water temperature controlled at 15-25°C, so that the strips are cooled and solidified quickly; S4 pelletizing: The cooled strips enter the pelletizer and are cut into uniform pellets. The pellet size is adjusted according to the requirements of subsequent injection molding, and the general length is 3-5 mm. S5 Injection Molding: Add the cut pellets into the barrel of the injection molding machine. Set the barrel temperature to 220-240°C and the mold temperature to 40-60°C. Inject the molten material into the fan mold through the injection molding machine. The holding time is 5-10 seconds and the cooling time is 15-20 seconds to form the various components of the air conditioner fan. S6 post-processing: Deburr the injection molded fan components to remove burrs and surface defects; Perform performance tests on fan components, including strength tests, antibacterial performance tests, antistatic performance tests, etc., to ensure that product quality meets requirements.

[0023] Furthermore, the material produced by this method exhibits excellent mechanical properties: the synergistic effect of 50-60 parts by weight of polycarbonate (PC) and 20-30 parts by weight of basalt fiber in the material significantly improves the strength and modulus of the air conditioning fan. The high strength of basalt fiber enables the fan to withstand greater centrifugal forces at high speeds, reducing deformation or breakage caused by excessive mechanical stress and extending the fan's service life. For example, in tests of long-term high-speed operation, fan components made of this material showed fatigue resistance improved by over 30% compared to traditional materials. Furthermore, the material produced by this method has outstanding antibacterial properties: the addition of a composite antibacterial agent (0.5-1.5 parts by weight of nano-silver ion antibacterial agent and 1-2 parts by weight of nano-zinc oxide antibacterial agent) gives the material excellent antibacterial ability. Nano-silver ions can destroy bacterial cell membranes and enzyme systems, inhibiting bacterial reproduction; nano-zinc oxide exerts its antibacterial effect by releasing reactive oxygen species. Testing has shown that the material has an antibacterial rate of over 99% against common bacteria such as Escherichia coli and Staphylococcus aureus, effectively reducing odor and health hazards caused by bacterial growth during fan use. It is particularly suitable for environments with high hygiene requirements, such as homes and medical facilities. Furthermore, the material produced by this method has a significant antistatic effect: 1-3 parts by weight of a polyetheresteramide antistatic agent can reduce the surface resistance of the material and reduce static electricity accumulation. This makes the fan less likely to absorb dust during operation, which not only maintains the fan's cleanliness and reduces the need for cleaning, but also prevents dust accumulation from affecting the fan's heat dissipation performance and service life. In dusty industrial environments, fans using this material have a surface dust load reduced by more than 60% compared to traditional materials. Furthermore, the material produced by this method has good weather resistance and stability: the combination of hindered phenol and phosphite antioxidants effectively prevents oxidative degradation of the material during processing and use; the absorption of ultraviolet rays by nano-zinc oxide also enhances the material's weather resistance. Even in harsh environments such as high temperature, humidity or direct sunlight, the material's performance can remain stable and is not prone to aging or discoloration, ensuring the long-term and reliable operation of the fan. Furthermore, the material produced by this method has excellent processing performance: the addition of high molecular weight fatty acid ester dispersants enables the various components to be evenly dispersed in the polycarbonate matrix, ensuring the consistency of material properties. During the melt extrusion and injection molding process, the material has good fluidity and is easy to process and shape. It can accurately replicate the shape of the mold, produce fan components with high dimensional accuracy and good surface quality, and reduce the scrap rate in the production process.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An air conditioning fan material, characterized by: It includes the following ingredients: base polymer, reinforcing fiber, antimicrobial agent, antistatic agent, dispersant, antioxidant; Among them, the base polymer: high-performance polycarbonate (PC) is selected as the base polymer; Among them, the reinforcing fiber: uses basalt fiber with special surface treatment as the reinforcing material; Among them, antibacterial agent: use composite antibacterial agent, which is composed of nano silver ion antibacterial agent and nano zinc oxide antibacterial agent; Among them, antistatic agent: add long-lasting antistatic agent, such as polyether ester amide antistatic agent; Among them, the dispersant: a high molecular weight fatty acid ester dispersant is selected; Among them, the antioxidant is a compound of hindered phenol antioxidant and phosphite antioxidant.

2. The air conditioning fan material according to claim 1, characterized in that: The polycarbonate accounts for 50-60 parts by weight in the material; Among them, the reinforcing fiber accounts for 20-30 parts by weight; Among them, the nano silver ion antibacterial agent accounts for 0.5-1.5 parts by weight, and the nano zinc oxide antibacterial agent accounts for 1-2 parts by weight. For example, in medical places with high hygiene requirements or air conditioning fans for home use, the nano silver ion antibacterial agent can be set to 1 part by weight and the nano zinc oxide antibacterial agent can be set to 1.5 parts by weight; Among them, the antistatic agent accounts for 1-3 parts by weight. For air-conditioning fans used in dusty industrial environments, the antistatic agent can be set to 2.5 parts by weight. Wherein, the dispersant accounts for 0.5-1 parts by weight; Among them, the hindered phenol antioxidant accounts for 0.2-0.5 parts by weight, and the phosphite antioxidant accounts for 0.2-0.5 parts by weight.

3. A method for manufacturing air conditioner fan material, characterized in that: The method comprises the following steps: S1 raw material pretreatment, S2 mixing and stirring, S3 melt extrusion, S4 pelletizing, S5 injection molding and S6 post-processing; Among them, S1 raw material pretreatment: Place the basalt fiber in a high-temperature oven and dry it at 150-200°C for 2-3 hours to remove moisture and impurities on the fiber surface and improve its compatibility with the base polymer; The nano silver ion antibacterial agent, the nano zinc oxide antibacterial agent, the antistatic agent, the dispersant, the hindered phenol antioxidant and the phosphite antioxidant are mixed uniformly according to a predetermined ratio to obtain a mixed additive.

4. The air conditioning fan material and manufacturing method according to claim 3, characterized in that: The S2 mixing and stirring: Add the dried basalt fibers and 50-60 parts by weight of polycarbonate particles into a high-speed blender and stir at 800-1200 rpm for 10-15 minutes to uniformly disperse the basalt fibers in the polycarbonate particles. Then add the mixed additives and continue stirring for 15-20 minutes to ensure that all additives are evenly dispersed in the mixture of polycarbonate and basalt fiber.

5. The air conditioning fan material and manufacturing method according to claim 3, characterized in that: The S3 melt extrusion: The stirred material is added to the twin-screw extruder. The temperature of each section of the twin-screw extruder is set as follows: the feeding section temperature is 180-200℃, the melting section temperature is 230-250℃, and the homogenization section temperature is 240-260℃. The material is melted, mixed, and extruded in the extruder to form a uniform strip. The strips are cooled in a water cooling tank with the water temperature controlled at 15-25°C, so that the strips are cooled and solidified quickly.

6. The air conditioning fan material and manufacturing method according to claim 3, characterized in that: The S4 pelletizing: The cooled strips enter the pelletizer and are cut into uniform pellets. The pellet size is adjusted according to the requirements of subsequent injection molding, and the general length is 3-5 mm.

7. The air conditioning fan material and manufacturing method according to claim 3, characterized in that: The S5 injection molding: The chopped pellets are added to the barrel of the injection molding machine. The barrel temperature of the injection molding machine is set to 220-240℃, and the mold temperature is controlled at 40-60℃. The molten material is injected into the fan mold through the injection molding machine. The holding time is 5-10 seconds and the cooling time is 15-20 seconds to form the various components of the air conditioner fan.

8. The air conditioning fan material and manufacturing method according to claim 3, characterized in that: The S6 post-processing: The injection-molded fan components are deburred to remove surface burrs and defects; the fan components are subjected to performance tests, including strength tests, antibacterial performance tests, antistatic performance tests, etc., to ensure that product quality meets the requirements.