Basic parameters
(1) Product requirements
1. Product name: PVB intermediate membrane
2. Die width: 1200mm
3. Product thickness: 0.76mm
4. Product width: 1000mm
5. Single layer extrusion: one main extrusion (reserving one auxiliary extrusion position and interface)
(2) Main materials
1. Resin:
Bulk density: 18-23g/100ml
Moisture content: ≤ 2%
Softening point: 65 ℃
Melting point: 90-100 ℃
2. Plasticizer:
Specific gravity: 0.97g/ml
Melting point: -50 ℃
Boiling point: 342-343 ℃
PH: 6.24
3. Crushed material: fragmented
Bulk density: 410-420g/L
Particle size: 2.5-12mm
4. Melt:
Temperature: 160-240 ℃
Viscosity: 1500-3000pas
2, Product Flow Chart (by Supply Scope)
Feeding unit - extruder - coarse screen changer - melt pump - fine screen changer - static mixer - distributor - die head - water tank - air knife - stretching - heat treatment - shaping - winding

Dongheng(dswintec.com) located in HeFei city and SuZhou city, Dongsheng Intelligent Equipment Co., Ltd is a well-known manufacturer of functional-film equipments. The company specializes in manufacturing vacuum coating machines, splitting machines, rewinding machines, bidirectional film pulling machines, and other related equipments, for fields of electronic films, lithium battery separators, optical films, packing films, copper/aluminum foil and others.

Dongsheng is also equipped with well-qualified R&D personnel,and experienced mechanical and electrical application engineers. Oriented to customers requirements and satisfaction, Dongsheng is dedicated to provide integrated solutions for designing & manufacturing, upgrading & reconstruction for used equipments, process designing, equipment installation, technical consultation,and personnel training, from single devices to whole production lines. With excellent products and efficient services, DONGSHENG is obtaining more and more satisfaction

and support from users at home and abroad.