PVC profile outer cover used in base station antenna and preparation method thereof

Abstract

The invention discloses a PVC profile outer cover used in a base station antenna and a preparation method thereof, which can not only improve the mechanical property, but also greatly improve high and low temperature resistant ageing property and ultraviolet ray resistant property, and greatly improve the electrical property of the material simultaneously. The PVC profile outer cover used in the base station antenna in the invention is manufactured by the following raw materials according to the mass ratio: 100 parts of PVC, 4-10 parts of inorganic modified padding, 0-10 parts of calcium carbonate, 1-2 parts of organic stannum stabilizing agent; 1-2 parts of metal soap stabilizing agent, 0.5-1.5 parts of lubricating agent, 4-12 parts of impact modifier, 1-3 parts of acrylic ester processing agent and 0-0.6 part of light stabilizer.

Description

technical field [0001] The invention relates to a special-shaped material outer cover and a preparation method thereof, and more specifically relates to a PVC special-shaped material outer cover for a base station antenna and a preparation method thereof. Background technique [0002] With the rapid development of the mobile communication industry, the communication base station antenna industry has also obtained great opportunities for development. Each communication base station and antenna must use a large number of plastic products, among which antenna cover products are typical representatives. For example, only Andrews of the United States and RFS of France estimate that the annual demand for radome housing products has reached more than 1 million. Since the microwave communication antenna is placed outdoors for a long time, it is not only required that the outer cover has a low dielectric constant and dielectric loss to meet the reliable transmission of communication ...

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Problems solved by technology

[0003] Generally, manufacturers use ABS, ASA or FRP materials to make antenna cover products. Among them, ABS, ASA and other polymer materials have poor processing performance and high cost when making extruded profile cover products due to their inherent physical properties. Low, poor quality stability during extrusion processing; and FRP materials are inefficient when making such products, the cost of raw materials is high, and because they cannot be reused, they will pollute the environment, and the defective products produced are in an embarrassing situation that cannot be processed

[0004] Polyvinyl chloride (PVC) material is widely used in all walks of life because of its low cost, easy processing, and wide range of material sources, especially in the extrusion molding industry, especially in recent years with the development of PVC modification technology , which greatly expands the application field of this material, but the dielectric properties and UV resistance of commonly used PVC materials still cannot meet the use conditions of base station antennas, and general modified PVC can only improve its mechanical strength and processing performance, so There is an urgent need to develop an optimized and improved PVC material, which can meet the requirements of low dielectric constant, low dielectric loss, UV resistance, environmental protection and low cost while meeting various mechanical performances.

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