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
| 项目 | 优等品 | 一等品 | 合格品 | 单位 |
|---|---|---|---|---|
| 平均聚合度 | 981-1135 | 981-1135 | 981-1135 | - |
| 粘数 | 107-118 | 107-118 | 107-118 | ml/g |
| K值 | 66-68 | 66-68 | 66-68 | - |
| 表观密度 | ≥ 0.48 | ≥ 0.45 | ≥ 0.42 | g/mL |
| 挥发物 (包括水) | ≤ 0.40 | ≤ 0.40 | ≤ 0.50 | % |
| 100g树脂增塑剂吸收量 | ≥ 22 | ≥ 22 | - | g |
| 残留氯乙烯单体 | ≤ 5 | ≤ 5 | ≤ 10 | µg/g |
| 筛余物 - 0.25mm | ≤ 1.6 | ≤ 2.0 | ≤ 8.0 | % |
| 筛余物 - 0.063mm | ≥ 97 | ≥ 90 | ≥ 85 | % |
| 鱼眼数 | ≤ 10 | ≤ 20 | ≤ 60 | /400cm² |
| 杂质粒子数 | ≤ 16 | ≤ 30 | ≤ 60 | 个 |
| 白度 (160℃, 10min) | ≥ 78 | ≥ 75 | ≥ 70 | % |
