PVA 2699 is a type of High viscosity and Full hydrolyzed Polyvinyl Alcohol. It’s a water-soluble synthetic polymer derived from the hydrolysis of polyvinyl acetate. It is characterized by its high polymerization degree and high hydrolysis rate, making it suitable for applications requiring excellent film-forming properties, adhesion, and chemical resistance.
Key Features
High Hydrolysis Degree: ≥ 98% hydrolysis, resulting in superior water solubility and stability.
Viscosity: high viscosity range, ensuring strong bonding and cohesive strength.
Film Strength: Forms tough, flexible, and transparent films with good barrier properties.
Thermal Stability: Stable under moderate heat, suitable for high-temperature processing.
Biodegradability: Environmentally friendly, decomposes under microbial action.
同等学历:
100-70 | CCP BF-26 | Sekisui Selvol 350 – Celanses
产品参数(规格)
| 项目 | 索引 |
| 水解(摩尔 %) | 98.0 ~ 99.9 |
| 粘度(mPa.s) | 68.0 ~ 80.0 |
| 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 ~ 80 目 |
申请:
Textile Industry: Used as a sizing agent for yarns to improve weaving efficiency.
Paper Coating: Enhances surface strength, printability, and gloss of paper products.
Adhesives: Key component in water-based adhesives for wood, packaging, and labels.
Construction: Acts as a binder in cement and mortar additives to improve workability.
Emulsion Polymerization: Serves as a protective colloid in PVC and PVAc production.
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。
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