Dustproof material, air duct, wind wheel and air conditioner
By introducing nano-zirconia and nano-alumina as hardness enhancers into the dustproof material, the problem of unstable performance of the dustproof material in high humidity environment is solved, achieving high hardness, wear resistance and long-lasting dustproof effect, suitable for air conditioning ducts and impellers.
Patent Information
- Application Number
- CN202410555197.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-11-07
Smart Images
Figure BDA0004825811040000081 
Figure BDA0004825811040000082
Abstract
Description
TECHNICAL FIELD
[0001] The embodiment of the present application relates to, but is not limited to, the air conditioning technical field, and specifically relates to a dustproof material, an air duct, an air wheel and an air conditioner. BACKGROUND
[0002] Dust is easily accumulated on the air duct and the air wheel of an air conditioner product. In order to reduce the amount of dust adhesion in the use process, a dustproof material can be used to form a dustproof coating on the surface of the air duct and the air wheel. The current dustproof material includes an antistatic coating and a low surface energy coating. The antistatic coating is used to reduce the adhesion of dust by adding an antistatic agent, but the antistatic effect is easy to fail when the relative humidity is high. The low surface energy coating includes fluorocarbon coating, UV photocuring fluorocarbon coating, silicone coating and the like. The low surface energy coating is mainly used to modify the surface chemistry of the coating by using a modifier such as a fluorine-containing material, so that the coating has a low surface energy characteristic, reduces the adhesion of dust and reduces the adhesion of dust, but the modifier is easy to separate out in the use environment and is easy to be lost, which reduces the long-term effect of the dustproof effect. In addition, the dustproof coating is easy to be worn out by long-term friction with air, which also reduces the long-term effect of the dustproof effect. SUMMARY
[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of protection of the present application.
[0004] The embodiment of the present application provides a dustproof material, an air duct, an air wheel and an air conditioner, the dustproof material has high hardness, good wear resistance, good dustproof effect and good long-term effect of the dustproof effect.
[0005] The embodiment of the present application provides a dustproof material, which comprises, by weight, 100 parts of plastic, 0 to 2 parts of silane coupling agent and at least 10 parts of hardness enhancer.
[0006] The hardness enhancer comprises nano zirconium oxide and nano aluminum oxide.
[0007] In the embodiment of the present application, the hardness enhancer is 10 to 50 parts.
[0008] In the embodiment of the present application, the weight ratio of the nano zirconium oxide to the nano aluminum oxide is 1:(0.8 to 1.2).
[0009] In the embodiment of the present application, the average particle size of the nano zirconium oxide is 10 to 30 nm, and the average particle size of the nano aluminum oxide is 100 to 300 nm.
[0010] In the embodiment of the present application, the dustproof material comprises, by weight, 100 parts of plastic, 0.5 to 2 parts of silane coupling agent and 40 to 50 parts of hardness enhancer.
[0011] In the embodiments of the present application, the surface pencil hardness of the dustproof material is above 2H.
[0012] In the embodiments of the present application, the plastic is selected from any one or more of acrylonitrile-butadiene-styrene copolymer, polyamide plastic, acrylonitrile-styrene copolymer and polyethylene plastic.
[0013] In the embodiments of the present application, the dustproof material further comprises any one or more of an antibacterial agent, an antioxidant, an antistatic agent, a plasticizer and a lubricant.
[0014] The embodiments of the present application also provide a wind channel comprising the dustproof material provided by the embodiments of the present application.
[0015] The embodiments of the present application also provide a wind wheel comprising the dustproof material provided by the embodiments of the present application.
[0016] The embodiments of the present application also provide an air conditioner comprising at least one of the wind channel and the wind wheel provided by the embodiments of the present application.
[0017] The dustproof material of the embodiments of the present application can obtain high hardness by introducing nano-zirconium oxide and nano-aluminum oxide as hardness enhancers. Moreover, the inventors of the present application find that the hardness of the material is related to the dustproof effect, and high hardness is conducive to reducing the adhesion and adsorption of dust to the material, reducing the electrostatic effect, thereby obtaining good dustproof effect. Therefore, the dustproof material of the embodiments of the present application has high hardness, good dustproof effect, high long-acting effect of the dustproof effect and good wear resistance.
[0018] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the following description, or can be learned by practice of the present application. Other advantages of the present application can be realized and obtained by means of the solutions described in the specification. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application are described in detail below. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.
[0020] The inventors of the present application find that the hardness of the material is related to the dustproof effect, and high hardness is conducive to reducing the adhesion and adsorption of dust to the material, reducing the electrostatic effect, thereby obtaining good dustproof effect; high hardness can also improve the wear resistance and long-acting dustproof effect of the material.
[0021] Based on this, the embodiments of the present application provide a dustproof material, which comprises a plastic and a hardness enhancer.
[0022] In the embodiments of the present application, the dustproof material comprises, by weight, 100 parts of plastic, 0 to 2 parts of silane coupling agent, and at least 10 parts of hardness enhancer.
[0023] The hardness enhancer comprises nano zirconium oxide and nano aluminum oxide.
[0024] The dustproof material of the embodiments of the present application can obtain high hardness by introducing nano zirconium oxide and nano aluminum oxide as the hardness enhancer. Moreover, the inventors of the present application find that the hardness of the material is related to the dustproof effect, and high hardness is conducive to reducing the adhesion and adsorption of dust to the material, reducing the electrostatic effect, and thus obtaining a good dustproof effect. Therefore, the dustproof material of the embodiments of the present application has high hardness, good dustproof effect, high long-acting property of the dustproof effect, and good wear resistance.
[0025] In addition, the dustproof material of the embodiments of the present application can be directly formed as an air conditioner component such as an air duct or an air wheel without the need to further coat a dustproof coating on the surface of the air conditioner component.
[0026] Moreover, the dustproof material of the embodiments of the present application also has the functions of heat insulation and noise reduction.
[0027] In the embodiments of the present application, the hardness enhancer is 10 to 50 parts.
[0028] In the embodiments of the present application, the weight ratio of the nano zirconium oxide to the nano aluminum oxide is 1:(0.8 to 1.2).
[0029] In the embodiments of the present application, the average particle size of the nano zirconium oxide is 10 to 30 nm, and the average particle size of the nano aluminum oxide is 100 to 300 nm.
[0030] In the embodiments of the present application, the dustproof material comprises, by weight, 100 parts of plastic, 0.5 to 2 parts of silane coupling agent, and 40 to 50 parts of hardness enhancer.
[0031] In the embodiments of the present application, the surface pencil hardness of the dustproof material is above 2H.
[0032] In the embodiments of the present application, the plastic is selected from any one or more of acrylonitrile-butadiene-styrene copolymer (ABS resin), polyamide (nylon) plastic, acrylonitrile-styrene copolymer (AS), and polyethylene plastic.
[0033] In the embodiments of the present application, the silane coupling agent can comprise any one or more of KH550 and KH560.
[0034] It should be understood that the plastic and the silane coupling agent used in the dustproof material are not limited to the specific materials listed above, and materials capable of achieving the functions of various agents can be used in the preparation of the dustproof material of the embodiments of the present application, and the specific materials listed above do not limit the present application in any form or substance.
[0035] In the embodiments of the present application, the dustproof material can further include other auxiliary agents. For example, the dustproof material can include any one or more of an antibacterial agent, an antioxidant, an antistatic agent, a plasticizer and a lubricant.
[0036] In the embodiments of the present application, the total addition amount of the other auxiliary agents can be 0 to 1 parts by weight based on 100 parts of the resin, for example, can be 0 parts, 0.5 parts or 1 part.
[0037] The present application does not have a specific limitation on the types of the antibacterial agent, the antioxidant, the antistatic agent, the plasticizer and the lubricant, and a person skilled in the art can select them as needed. For example, the antioxidant can include any one or more of 1010, 1076, 1098 and 168; the plasticizer can be dioctyl phthalate; and the lubricant can be zinc stearate or calcium stearate.
[0038] The embodiments of the present application also provide an air duct comprising the dustproof material provided by the embodiments of the present application. For example, the dustproof material of the embodiments of the present application can be used to form the air duct.
[0039] The embodiments of the present application also provide a wind wheel comprising the dustproof material provided by the embodiments of the present application. For example, the dustproof material of the embodiments of the present application can be used to form the wind wheel.
[0040] In the embodiments of the present application, the wind wheel can be a cross-flow wind wheel or a centrifugal wind wheel for air conditioning.
[0041] The embodiments of the present application also provide an air conditioner comprising at least one of the air duct and the wind wheel provided by the embodiments of the present application.
[0042] The zirconium oxide or aluminum oxide used in the following different examples and comparative examples is the same batch product produced by the same manufacturer, the average particle size of the zirconium oxide is in the range of 10 nm to 30 nm, and the average particle size of the aluminum oxide is in the range of 100 nm to 300 nm.
[0043] Example 1
[0044] The ABS resin 100 parts by weight, nano hardness enhancer 10 parts, silane coupling agent KH550 1 part by weight, plasticizer dioctyl phthalate 1 part are weighed. Among them, in the nano hardness enhancer, the weight ratio of nano zirconium oxide to nano aluminum oxide is 1:1.
[0045] The weighed material is put into a high-speed mixer and uniformly stirred for 2 minutes, and then put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder is as follows: the first section 205℃, the second section 215℃, the third section 225℃, the fourth section 230℃, the fifth section 230℃, the sixth section 230℃, the seventh section 230℃, the eighth section 230℃, the head and the die temperature is controlled at 225℃, the screw speed is 350rpm, and the head pressure is 17MPa.
[0046] The material obtained by extrusion and granulation is placed in a wind wheel forming mold to form a wind wheel.
[0047] Example 2
[0048] The ABS resin 100 parts by weight, nano hardness enhancer 40 parts, silane coupling agent KH560 1 part by weight are weighed. Among them, in the nano hardness enhancer, the weight ratio of nano zirconium oxide to nano aluminum oxide is 1:1.2.
[0049] The weighed material is put into a high-speed mixer and uniformly stirred for 2 minutes, and then put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder is as follows: the first section 205℃, the second section 215℃, the third section 225℃, the fourth section 230℃, the fifth section 230℃, the sixth section 230℃, the seventh section 230℃, the eighth section 230℃, the head and the die temperature is controlled at 225℃, the screw speed is 350rpm, and the head pressure is 17MPa.
[0050] The material obtained by extrusion and granulation is placed in a wind wheel forming mold to form a wind wheel.
[0051] Example 3
[0052] The ABS resin 100 parts by weight, nano hardness enhancer 50 parts, silane coupling agent KH550 1 part by weight, plasticizer dioctyl phthalate 1 part are weighed. Among them, in the nano hardness enhancer, the weight ratio of nano zirconium oxide to nano aluminum oxide is 1:1.
[0053] The weighed materials are put into a high-speed stirrer for uniform stirring for 2 minutes, and then put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder is as follows: 205℃ for the first section, 215℃ for the second section, 225℃ for the third section, 230℃ for the fourth section, 230℃ for the fifth section, 230℃ for the sixth section, 230℃ for the seventh section, and 230℃ for the eighth section. The temperature of the head and the die is controlled at 225℃. The screw speed is 350 rpm, and the head pressure is 17 MPa.
[0054] The material obtained by extrusion and granulation is placed in a wind wheel forming mold to form a wind wheel.
[0055] Example 4
[0056] The ABS resin is weighed at 100 parts by weight, the nano hardness enhancer is weighed at 20 parts, and the silane coupling agent KH550 is weighed at 1 part by weight. Among them, the weight ratio of nano zirconium oxide to nano aluminum oxide in the nano hardness enhancer is 1:0.8.
[0057] The weighed materials are put into a high-speed stirrer for uniform stirring for 2 minutes, and then put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder is as follows: 205℃ for the first section, 215℃ for the second section, 225℃ for the third section, 230℃ for the fourth section, 230℃ for the fifth section, 230℃ for the sixth section, 230℃ for the seventh section, and 230℃ for the eighth section. The temperature of the head and the die is controlled at 225℃. The screw speed is 350 rpm, and the head pressure is 17 MPa.
[0058] The material obtained by extrusion and granulation is placed in a wind wheel forming mold to form a wind wheel.
[0059] Example 5
[0060] The ABS resin is weighed at 100 parts by weight, the nano hardness enhancer is weighed at 30 parts by weight, the antioxidant 1010 is weighed at 1 part by weight, and the lubricant calcium stearate is weighed at 0.5 parts by weight. Among them, the weight ratio of nano zirconium oxide to nano aluminum oxide in the nano hardness enhancer is 1:1.
[0061] The weighed materials are put into a high-speed stirrer for uniform stirring for 2 minutes, and then put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder is as follows: 205℃ for the first section, 215℃ for the second section, 225℃ for the third section, 230℃ for the fourth section, 230℃ for the fifth section, 230℃ for the sixth section, 230℃ for the seventh section, and 230℃ for the eighth section. The temperature of the head and the die is controlled at 225℃. The screw speed is 350 rpm, and the head pressure is 17 MPa. The pencil hardness of the material is 4H.
[0062] The material obtained by extrusion and granulation is placed in a wind wheel forming mold to form a wind wheel.
[0063] Example 6
[0064] The ABS resin 100 parts by weight, nano hardness enhancer 50 parts, silane coupling agent KH550 1 part by weight, plasticizer dioctyl phthalate 1 part by weight. Among them, in the nano hardness enhancer, the weight ratio of nano zirconium oxide and nano aluminum oxide is 1:0.8.
[0065] The weighed material is put into a high-speed mixer and stirred uniformly for 2 minutes, and then put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder is as follows: the first section 205℃, the second section 215℃, the third section 225℃, the fourth section 230℃, the fifth section 230℃, the sixth section 230℃, the seventh section 230℃, the eighth section 230℃, the head and die temperature is controlled at 225℃, the screw speed is 350rpm, and the head pressure is 17MPa.
[0066] The material obtained by extrusion and granulation is placed in a wind wheel forming mold to form a wind wheel.
[0067] Example 7
[0068] The ABS resin 100 parts by weight, nano hardness enhancer 50 parts, silane coupling agent KH550 1 part by weight, plasticizer dioctyl phthalate 1 part by weight. Among them, in the nano hardness enhancer, the weight ratio of nano zirconium oxide and nano aluminum oxide is 1:1.2.
[0069] The weighed material is put into a high-speed mixer and stirred uniformly for 2 minutes, and then put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder is as follows: the first section 205℃, the second section 215℃, the third section 225℃, the fourth section 230℃, the fifth section 230℃, the sixth section 230℃, the seventh section 230℃, the eighth section 230℃, the head and die temperature is controlled at 225℃, the screw speed is 350rpm, and the head pressure is 17MPa.
[0070] The material obtained by extrusion and granulation is placed in a wind wheel forming mold to form a wind wheel.
[0071] Comparative Example 1
[0072] The difference between this comparative example and Example 1 is only that no nano hardness enhancer is added, and the rest is the same as Example 1.
[0073] Comparative Example 2
[0074] The ABS resin 100 parts by weight, nano hardness enhancer 10 parts, silane coupling agent KH550 1 part by weight, plasticizer dioctyl phthalate 1 part by weight. Among them, in the nano hardness enhancer, the weight ratio of nano zirconium oxide and nano aluminum oxide is 1:0.5.
[0075] The weighed materials were put into a high-speed mixer and stirred uniformly for 2 minutes, and then were put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder was as follows: 205°C for the first section, 215°C for the second section, 225°C for the third section, 230°C for the fourth section, 230°C for the fifth section, 230°C for the sixth section, 230°C for the seventh section, and 230°C for the eighth section. The temperature of the head and die was controlled at 225°C. The screw rotation speed was 350 rpm. The head pressure was 17 MPa. The pencil hardness of the material was 2H.
[0076] Comparative Example 3
[0077] ABS resin 100 parts by weight, nano-hardness enhancer 10 parts, silane coupling agent 1 part by weight, and plasticizer dioctyl phthalate 1 part were weighed. In the nano-hardness enhancer, the weight ratio of nano-zirconium oxide to nano-aluminum oxide was 0.5:1.
[0078] The weighed materials were put into a high-speed mixer and stirred uniformly for 2 minutes, and then were put into a twin-screw extruder for melt extrusion and granulation. The temperature control of the twin-screw extruder was as follows: 205°C for the first section, 215°C for the second section, 225°C for the third section, 230°C for the fourth section, 230°C for the fifth section, 230°C for the sixth section, 230°C for the seventh section, and 230°C for the eighth section. The temperature of the head and die was controlled at 225°C. The screw rotation speed was 350 rpm. The head pressure was 17 MPa. The pencil hardness of the material was 2H.
[0079] Performance Test
[0080] Hardness Test: The surface pencil hardness of the material after molding was tested according to the method of Chinese national standard GB / T6739-2006.
[0081] Initial Dustproof Rate Test
[0082] Dust Accumulation Test: ASHRAE artificial dust was used. A wind wheel was placed in a sealed box. After starting, 1 g of artificial dust was put in. The wind wheel ran for 16 h, then stopped for 8 h, and repeated for 3 cycles for a total of 72 h. Then the wind wheel was taken out. The dust accumulation on the surface of the sample before and after running was observed, and the mass change of the sample before and after running was tested to obtain the surface dust amount. Through the test, the surface dust amount of Comparative Example 1 was obtained. Comparative Example 1 was used as a reference to calculate the dust accumulation rate of the samples of the examples and other comparative examples.
[0083] The weight change of Comparative Example 1 was a, and the weight change of the samples of the examples and Comparative Examples 2-3 was b. The calculation formula of the dustproof rate x was: x = (a-b) / a x 100%. The results of the pencil hardness test and the initial dustproof rate test of the coating surface are shown in Table 1.
[0084] Table 1 Initial Hardness and Dustproof Rate
[0085]
[0086] Long-run dustproof rate test
[0087] The wind wheel was first continuously operated in dry air for three months, and the dust on the surface of the wind wheel was cleaned before the long-run dustproof rate test. Then, the same method as the initial dustproof rate test was used for testing, and the test results are shown in Table 2.
[0088] Table 2 Long-run hardness and dustproof rate
[0089]
[0090] It can be seen that the amount of hardness enhancer added has an effect on the surface pencil hardness and dustproof effect of the dustproof material. When the amount of hardness enhancer added is in the range of 10 parts by weight to 50 parts by weight, the greater the amount of hardness enhancer added, the better the surface pencil hardness and dustproof effect of the dustproof material.
[0091] It can be seen by comparing Examples 3, 6, and 7 that when the amount of hardness enhancer added is the same, when the ratio of nano-zirconium oxide to nano-aluminum oxide changes from 1:1 to 1:0.8 or 1.2:1, the dustproof effect of the dustproof material decreases. It can be seen by comparing Example 1 with Comparative Examples 2 and 3 that when the amount of hardness enhancer added is the same, when the ratio of nano-zirconium oxide to nano-aluminum oxide changes from 1:1 to 1:0.5 or 0.5:1, the dustproof effect of the dustproof material decreases. Therefore, when the amount of hardness enhancer added is the same, the ratio of nano-zirconium oxide to nano-aluminum oxide affects the dustproof effect of the dustproof material. When the ratio of nano-zirconium oxide to nano-aluminum oxide is 1:1, the initial dustproof effect and long-term dustproof effect of the dustproof material are both good.
Claims
1. A dust-proofing material, characterized by comprising: comprises: 100 parts of plastic, 0 to 2 parts of silane coupling agent and at least 10 parts of hardness enhancer by weight; The hardness enhancer comprises nano zirconium oxide and nano aluminum oxide.
2. The dust-proof material according to claim 1, characterized by The hardness enhancer is 10 to 50 parts.
3. The dust-proof material according to claim 2, characterized by The weight ratio of the nano zirconium oxide to the nano aluminum oxide is 1:(0.8 to 1.2).
4. The dust-proof material according to claim 3, characterized by The average particle size of the nano zirconium oxide is 10 to 30 nm, and the average particle size of the nano aluminum oxide is 100 to 300 nm.
5. The dust-proof material according to claim 3, wherein comprises: 100 parts of plastic, 0.5 to 2 parts of silane coupling agent and 40 to 50 parts of hardness enhancer by weight.
6. The dust-proof material according to any one of claims 1 to 5, characterized in that, The surface pencil hardness of the dustproof material is above 2H.
7. The dust-proof material according to any one of claims 1 to 5, characterized in that, The plastic is selected from any one or more of acrylonitrile-butadiene-styrene copolymer, polyamide plastic, acrylonitrile-styrene copolymer and polyethylene plastic.
8. The dust-proof material according to any one of claims 1 to 5, characterized by, Any one or more of antibacterial agent, antioxidant, antistatic agent, plasticizer and lubricant are further included.
9. An air duct, characterized in that The dustproof material according to any one of claims 1 to 8.
10. A wind wheel, characterized in that The dustproof material according to any one of claims 1 to 8.
11. An air conditioner characterized by comprising: comprises at least one of the following components: The air duct according to claim 9; The wind wheel according to claim 10.