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[Chemical Knowledge]：Properties and uses of PVC profiles

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The properties and uses of PVC profiles are of great significance in the field of chemical production raw materials. This article will detail the nature of PVC profiles, production process, main uses and development prospects.

1. the properties of PVC profiles

PVC(Polyvinyl Chloride) is an amorphous polymer with good chemical resistance, electrical insulation and processing properties. PVC profiles are made of PVC resin with the right amount of stabilizers, lubricants, processing aids, etc., through extrusion molding process. PVC profiles have the following properties:

1. corrosion resistance: PVC profiles have good corrosion resistance, resistant to most of the acid, alkali, salt and other chemical substances corrosion, so widely used in chemical, electroplating, food and other industries equipment and pipelines.
2. Electrical insulation: PVC profiles have excellent electrical insulation and can be used for protective sleeves and insulating layers of wires and cables to ensure the safe operation of electrical equipment.
3. Lightweight and easy processing: PVC profiles are light in weight, easy to cut, drill, weld and other processing operations, easy to install and maintain.

2. PVC profile production process

PVC profile production process mainly includes ingredients, mixing, extrusion molding, cooling shaping, traction cutting and other steps. The specific process is as follows:

1. ingredients: according to product requirements, PVC resin, stabilizers, lubricants, processing aids and other raw materials according to a certain proportion of ingredients.
2. Mixing: Add the prepared raw materials into the high-speed mixer and fully stir evenly.
3. Extrusion molding: the mixed material is fed into the extruder, and the material is plasticized by the rotation and extrusion of the screw.
4. Cooling and shaping: The extruded profile is cooled and shaped by the cooling water tank to make it have a certain strength and hardness.
5. traction cutting: the profile after cooling and shaping is pulled by the traction device, and at the same time, the cutting device is cut according to a certain length to obtain the required PVC profile.

3. the main use of PVC profiles

PVC profiles because of its excellent properties and a wide range of applications, is widely used in the following areas:

1. construction: PVC profiles can be used for doors and windows, partitions, wallboards and other building components, with corrosion resistance, heat preservation, sound insulation and other advantages.
2. Chemical industry: PVC profiles can be used in the production of chemical equipment and pipelines, with excellent corrosion resistance, and can be used to transport various corrosive media.
3. Electrical field: PVC profiles can be used for protective sleeves and insulating layers of wires and cables to ensure the safe operation of electrical equipment.
4. Transportation: PVC profiles can be used to make decorative parts and structural parts inside vehicles, such as door inner panels, seat bases, etc.
5. Agriculture: PVC profiles can be used to make greenhouses, farmland water conservancy facilities, etc., to improve agricultural production efficiency.

4. the development prospects of PVC profiles

With the progress of science and technology and changes in market demand, the development prospects of PVC profiles are very broad. In the future, PVC profiles will develop in the direction of high performance, multi-function and environmental protection to meet the needs of more fields. At the same time, with the improvement of people's awareness of quality of life and environmental protection, PVC profiles will pay more attention to environmental protection and sustainability in the production process, and promote the green development of chemical production raw materials.

In short, PVC profiles have important application value and broad development prospects in the field of chemical production raw materials. Through in-depth understanding of the nature of PVC profiles, production process, main uses and development prospects, can provide useful reference and guidance for the development of related fields.

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