Pvc Resin Sg 5
Chlorinated polyethylene ( CPE) is made from high density polyethylene(HDPE) replaced by chlorination reaction of elastic polymer materials. The appearance is non-toxic and odorless white powder. Have excellent toughness, weather resistance, oil resistance, flame retardant, coloring resistance, chemical and other properties, is compatible with plastics, rubber, excellent filling properties. Depending on the product performance, CPE can be used as impact modifiers, plastic modified solubilizer and synthetic special rubber.
| Parameter | Grade | ||||
| Standard: GB5761-1993 | SG3 | SG5 | SG7 | SG8 | |
| K – Value | 72 – 71 | 66 – 68 | 62 – 60 | 59 – 55 | |
| Polymerizing Index | 1300 +/-50 | 1000 +/-50 | 800 +/-50 | 700 +/-50 | |
| Number of impurity particles ( ≤) | 16 | 16 | 20 | 20 | |
| Volatile content (incl. water) (% ≤) | 0.3 | 0.4 | 0.4 | 0.4 | |
| Apparent density (≥) | 0.42 | 0.48 | 0.48 | 0.5 | |
| Particle size | ≥ 0.25mm ≤ | 2 | 2 | 2 | 0.4 |
| ≥ 0.063mm ≥ | 95 | 95 | 95 | 95 | |
| Number of Fish Eye (/400 cm2) (≤) | 20 | 20 | 30 | 30 | |
| Plasticizer absorption of 100g resin ( ≥) | 26 | 19 | 12 | 22 | |
| Whiteness (160°C, after 10 min.) (% ≥) | 78 | 78 | 75 | 75 | |
| VCM Residue PPM ( ≤) | 5 | 5 | 5 | 5 |
Application:CPE135A has excellent flame and low temperature impact properties, can increase toughness and impact strength of PVC, widely used in rigid PVC products, such as PVC profile, pipe, pipe fittings, sheet and wire etc.
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