Polyvinyl chlorides is high molecular compounds polymerized with structural element as CH2-CHCLn,degree of polymerization usually as 590-1500.In the process of re-polymerization ,affected by kinds of factors such as the polymerization process, reaction conditions, reactant composition, additives etc.it can produce eight different types of PVC resin performance is different.
Product Parameters
| Items | SG3 | SG5 | SG7 | SG8 |
| K value | 72-71 | 68-66 | 62-60 | 59-55 |
| Viscosity Number (ml/g) | 135-127 | 118-107 | 95-87 | 86-73 |
| Average degree of polymerization | 1370-1251 | 1135-981 | 845-741 | 740-650 |
| Number of impurity substance | ≤16 | ≤16 | ≤20 | ≤20 |
| Mass fraction of volatiles (including water) | ≤0.30 | ≤0.40 | ≤0.40 | ≤0.40 |
| Appearance density | ≥0.45 | ≥0.48 | ≥0.50 | ≥0.50 |
| Number of "fish eye" | ≤20 | ≤20 | ≤30 | ≤30 |
| Whiteness(160ºC,10min)% | ≥78 | ≥75 | ≥75 | ≥75 |
| VCM residue | ≤5 | ≤5 | ≤5 | ≤5 |
| Packing | 25kgs two layers draft paper bag or 1000kgs PP bag | |||
Package
25kgs, 40kgs,50kgs/PP or customized
Application
SG-1 is used in producing high-grade electrical insulating material
SG-2 is used in producing electrical insulating material, common soft products and film
SG-3 is used in producing electrical insulating materials, agricultural film, daily-use plastic products,
SG-4 is used in producing membranelle for industrial and civil use, tube and pipes
SG-5 is used in producing transparent products section bar, hard tube and decorative materials
SG-6 is used in producing clear foil, hard board and welding rod
SG-7, SG-8 is used in producing clear foil, hard injection molding.
PVC Resin Propertity
PVC resin is the most widely raw material used in plastic production.It has good chemical stability corrosion reslstance and water resistance.It can be dissolved in acetone,este rand some alcohol.It can offer good solubility.good electrical insulation,and membrane forming capacity.The PVC Resins are polymerized by suspension process,their appearance being in white powderform.They are essential materials for preparing PVC compounds.By adding blending agents and nemploying different techniques,they can be madeinto rigid or non-rigid PVC products and are supplying in a wide range of transparent,translucent, and opaque colors.
PVC Resin Specification
| Parameter | Grade | |||
| Standard: GB5761-1993 | SG3 | SG5 | SG8 | |
| Viscosity ml/g | 135-127 | 118-107 | 86-73 | |
| K-Value | 72-70 | 67-65 | 59-55 | |
| Average degree of Polymerization | 1300+/-50 | 1000+/-50 | 700+/-50 | |
| Number of impurity particles ≤ | 16 | 16 | 20 | |
| Volatile content (incl. water) % ≤ | 0.3 | 0.4 | 0.4 | |
| Apparent density ≥ | 0.42 | 0.48 | 0.5 | |
| Particle size | ≥ 0.25mm ≤ | 2 | 2 | 0.4 |
| ≥ 0.063mm ≥ | 95 | 95 | 95 | |
| Number of Fish Eye (/400 cm2) ≤ | 20 | 20 | 30 | |
| Plasticizer absorption of 100g resin ≥ | 26 | 19 | 22 | |
| Whiteness (160°C, after 10 min.) % ≥ | 78 | 78 | 75 | |
| VCM Residue PPM ≤ | 5 | 5 | 5 | |
Uage
It is widely used in the production of water pipe, chemical pipe, plastic windows and doors, packing film, plastic carpet, plastic ceiling, sanitary fitting, plastic wallpaper etc.
Storage
Kept in dry, cool, and shaded place with original packaging, avoid moisture, store at room temperature.
Packaging & Shipping
PVC Resin Packaging: 25kg ppbag, 25kg paper bag ascustomer'requirment.
PVC Resin Delivery Detail: 2 weeks after confirm order.Some of the products can be supplied within 7 days on the strength of EDC warehouse.