PVC is a widely used material in life, almost everyone has used something made of PVC. And PVC because of its own characteristics in the field of flame retardant is also widely used, so follow zibo Junhai Chemical to understand the processing technology and application of flame retardant PVC products.
PVC products can be divided into hard PVC and soft PVC two kinds, general plasticizer content is less than 10% called hard PVC, plasticizer content is more than 30% is soft PVC. It should be noted that the rigid PVC itself has excellent flame retardant performance, LOI> 45%, no special requirements do not need to add flame retardant; And soft PVC due to the presence of plasticizer, it is necessary to add flame retardant to achieve flame retardant requirements.
Because of the wide application of PVC products, a wide variety of, in order to meet different needs, it needs different PVC molding process. Here is a brief introduction to the main molding process of PVC and the application of flame retardant PVC products.
1. PVC calendering products
PVC mixed with additives, plasticized, using three or four roll rolling mechanism into a prescribed thickness of film. This kind of flame retardant products mainly include electrical tape, light box cloth, toy film, conveyor belt, wallpaper and so on.
2. PVC coated products
PVC coating is the first plastic particles hot melt mixing paste, according to the prescribed thickness evenly coated on the T/C knitted fabric base, and then post-processing. This KIND OF flame retardant products mainly include artificial leather, sofa and car leather, floor leather, outdoor tent, playground inflatable facilities, floor paving materials for buildings and so on.
3. PVC extruded products
This process is mainly used for the processing of PVC wire and cable and PVC pipe.
4. PVC injection molding products
The main products of this process are pipe fittings, joints, junction boxes, floor MATS, oxygen masks, toys, auto parts and so on.
5. PVC foam products
Soft PVC mixing, add appropriate amount of foaming agent to make PVC sheet, foam molding for foam plastic, can be made into foam board, foam slippers, sandals, insole and shockproof buffer packaging and other materials.
6. PVC sheet and profile
PVC additives, after mixing, with extruder can extrude a variety of caliber of hard pipe, special-shaped pipe, bellows. Can also be rolled good sheet overlapping hot pressing, made into a variety of thickness of hard board, such as storage tank, air duct, doors and Windows.
Post time: Aug-16-2022