APPLICATIONS
产品用途
SG-5, a versatile general-purpose resin, holds a pivotal position in rigid building material applications. Its balanced formulation and wide processing window endow the final products with excellent impact resistance, weatherability, and dimensional stability. It is extensively used in construction pipe systems, door and window profiles, sheets, and corrosion-resistant industrial components, serving as a cornerstone for modern construction and infrastructure solutions.
SPECIFICATIONS
技术规格
| Item | Excellent Grade | Good Grade | Qualified Grade | Unit |
|---|---|---|---|---|
| Average Degree of Polymerization | 981-1135 | 981-1135 | 981-1135 | - |
| Viscosity | 107-118 | 107-118 | 107-118 | ml/g |
| K-value | 66-68 | 66-68 | 66-68 | - |
| Apparent Bulk Density | ≥ 0.48 | ≥ 0.45 | ≥ 0.42 | g/mL |
| Volatiles (Includes Moisture) | ≤ 0.40 | ≤ 0.40 | ≤ 0.50 | % |
| Plasticizer Absorption of 100g Resin | ≥ 22 | ≥ 22 | - | g |
| Residual VCM | ≤ 5 | ≤ 5 | ≤ 10 | µg/g |
| Sieve retention - 0.25mm | ≤ 1.6 | ≤ 2.0 | ≤ 8.0 | % |
| Sieve retention - 0.063mm | ≥ 97 | ≥ 90 | ≥ 85 | % |
| Fish-eye Count | ≤ 10 | ≤ 20 | ≤ 60 | /400cm² |
| Number of Impurities | ≤ 16 | ≤ 30 | ≤ 60 | pcs |
| Whiteness (160℃, 10min) | ≥ 78 | ≥ 75 | ≥ 70 | % |
