Co-extruded Pvc Profile For Machinery Assembly

Co-Extruded Pvc Profile Description Material : PVC rigid+soft Color : Origin Height : 5~150mm Width :10~300mm Thickness : 2mm Weight : 300g/meter Soft PVC generally refers to PVC with hardness below 90A. Hard PVC generally refers to the hardness above 100A. The connection mode of soft PVC and hard PVC ……

Co-Extruded Pvc Profile Description

Material : PVC rigid+soft

Color : Origin

Height : 5~150mm

Width :10~300mm

Thickness : 2mm

Weight : 300g/meter

Soft PVC generally refers to PVC with hardness below 90A. Hard PVC generally refers to the hardness above 100A. The connection mode of soft PVC and hard PVC is generally co extrusion, that is, two extruders are used to extrude at the same time, and then connected at the die head to produce soft and hard co extrusion products.

PVC can be divided into soft PVC and hard PVC. Among them, hard PVC accounts for about 2/3 of the market and soft PVC accounts for 1/3. Soft PVC is generally used for floor, ceiling and leather surface, But because it contains softener (This is also the difference between soft PVC and hard PVC. It is easy to become brittle and not easy to preserve, so its application scope is limited. Hard PVC does not contain softeners, so it is flexible, easy to form, not brittle, non-toxic, pollution-free, and has a long storage time. It is highly valuable for development and application. Hereinafter referred to as PVC. PVC is essentially a vacuum plastic film, which is used for the surface packaging of various panels, so it is also called decorative film and pasting film, which are used for building materials, packaging, medicine, etc Multi industry. Among them, the building materials industry accounts for the largest proportion, accounting for 60%, followed by the packaging industry and other small-scale applications.

1. Soft PVC contains softener (which is also the difference between soft PVC and hard PVC), which is easy to become brittle and difficult to preserve, so its scope of use is limited. Hard PVC does not contain softener, so it is flexible, easy to form, not fragile, non-toxic and pollution-free, and has a long storage time, so it has great development and application value

2. Different applications

Soft PVC is generally used for floor, ceiling and leather surface; UPVC is mainly used for rigid PVC pipes, pipe fittings and profiles.

3. Different physical and chemical properties

The density of soft pvc is 1.16~1.35g/cm-179;, Water absorption 0.15~0.75%, glass transition temperature 75~105 ℃, molding shrinkage 10~50 × 10-&179; Cm/cm, tensile breaking strength 10~24MPa, compressive strength 6~12MPa, relative elongation 200~450%, hardness Shore A50~100, linear expansion coefficient 70~250 × 10-&8310;/ Mm ・ ℃, thermal conductivity 0.7~1.0 × 10-&8309;/ (m ・ K), dielectric strength (short time) 11.8~15.7 × I0-&179; V/mm。

Hard PVC usually has a diameter of 40-100mm, and its inner wall is smooth with little resistance, no scaling, non-toxic, pollution-free, and corrosion resistant. The operating temperature is not more than 40 ℃, so it is a cold water pipe. It has good aging resistance and flame resistance, and can be flexibly connected and installed with rubber rings.

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