菜单
菜单
PVA 2688 is a type of High viscosity and Partially Hydrolyzed Polyvinyl Alcohol. It is a water-soluble synthetic polymer derived from the hydrolysis of polyvinyl acetate. It is characterized by its high molecular weight (degree of polymerization ~2600) and a hydrolysis degree of approximately 88 mole%. Its appearance is typically appears as white or creamy granular/powdered solid.
Solubility: Readily dissolves in water (dependent on temperature and concentration), forming a viscous solution with excellent adhesion, film-forming, and emulsifying properties.
Thermal Stability: Stable under normal conditions but degrades at high temperatures.
Chemical Resistance: Resistant to oils, greases, and organic solvents (varies with hydrolysis degree).
同等学历：
CCP BP-26 | Sekisui Selvol 540 – Celanses
产品参数（规格）
| 项目 | 索引 |
| 水解（摩尔%） | 87.0 ~ 89.0 |
| 粘度（mPa.s） | 50.0 ~ 58.0 |
| 挥发性（wt%） | ≤ 5.0 |
| 灰分（wt%） | ≤ 0.5 |
| pH 值 | 5 ~ 7 |
| 纯度 (%) | ≥ 93.5 |
| 颗粒大小 | 薄片，10~200目 |
申请：
包装
牛皮纸包装，内衬塑料薄膜，每袋 20 千克/25 千克，或编织袋，每袋 500 千克。
存储：
产品应存放在室温 5-30℃ 的室内干燥通风处，分批贮存。远离电源，防止潮湿，避免阳光暴晒。严禁与易挥发的化学物质一起存放，以防吸附变质。
交通
运输时要求车辆清洁，注意防潮、防雨、防晒。小心搬运，防止损坏包装。严禁与易挥发的化学品存放在一起，以防吸附变质。
常见问题
质量保证：质量严格符合合同/PI 要求。
技术支持：任何技术问题都将在 24 小时内通过电子邮件或电话得到解决。
交货及时：订单将在 15 天内及时交付。
Hot Tags:
PVA 2688, China, Manufacturers, Suppliers, Factory, Wholesale, Customized, Brands, Price, Quality
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