PVC Compounding

1.What is PVC?

Polyvinyl chloride plastics are polymerized from vinyl chloride monomers and are one of the commonly used thermoplastics. Its trade name is referred to as “chlorine plastic”, and the English abbreviation is PVC. Pure polyvinyl chloride resin is a hard thermoplastic material, its decomposition temperature is very close to the plasticization temperature, and its mechanical strength is poor. Therefore, it is not possible to use polyvinyl chloride resin to make products. It is necessary to add plasticizers, stabilizers, fillers, etc. to improve performance, make polyvinyl chloride plastics, and then process them into various products. Polyvinyl chloride is divided into rigid polyvinyl chloride and soft polyvinyl chloride according to the amount of plasticizer added.

 
2.How PVC is processed through twin screw extruder?
PVC generally needs to be modified granulation firstly. After being made into particles by twin screw extruder, it will be plasticized and processed more easily , especially for injection-molded products. Plastic extruder is one of the most important equipment for plastic molding processing, it adopts external power transfer and heat transfer of external heating elements to carry out solid transport, compaction, melting, shear mixing and extrusion. Twin screw extruder plays an important role both for pelletizing machine and a molding processing machine. Technically , PVC products with special requirements and PVC modified formulations can be customized based on customers’ request.


Extruder Technical Specification

Two Stage twin screw extruder

Model

Screw diameter(mm)

Screw speed(rpm/min)

Motor power(Kw)

Output(Kg/h)

TSK52/120

TCK 52

51.4

500

45

100 300

TCE 120

120

85

30.37

TSCK52/120

TCK 52

51.4

600

55

200 500

TCE 150

150

85

37.45

TSK 65/150

TCK 65

62.4

500

90

200 500

TCE150

150

85

37.45

TSK 65/180

TCK65

62.4

600

110

400 800

TCE180

180

85

45.55

TSK 75/180

TCK75

71

500

132

400 800

TCE 180

180

85

45.55

TSK 75/200

TCK 75

71

600

160

700 1500

TCE 200

200

85

55.75

TSK 95/220

TCK 95

93

400

200

800 1600

TCE220

220

85

75.90


Customer Case:

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