The papermaking defoamer XS-02 uses polyoxyethylene polyoxypropylene ether fatty acid ester (polyether ester) as the main component. It appears as a white to light yellow viscous liquid and has good self-emulsifying dispersion performance in water. This product belongs to the non-ionic defoamer type, can quickly disperse in aqueous systems and exert its defoaming and foam-suppressing effects. It is a high-efficiency product developed specifically for foam control needs in various stages of the paper industry.
The most prominent advantage of this product is its high-efficiency defoaming and foam suppression capability — it can instantly break existing foam and also has long-lasting foam suppression performance. It performs particularly stably in harsh systems such as black liquor and white water under high alkalinity and high temperature conditions, effectively reducing the risk of paper breaks caused by foam and significantly improving paper machine operating efficiency. At the same time, its non-ionic nature gives it good compatibility with anionic and cationic additives, various sizing agents, and strengthening agents in the system, without easily causing side reactions or precipitation, ensuring the stability of the papermaking process.
In terms of safety and environmental protection, the papermaking defoamer XS-02 is classified as a non-hazardous substance, low toxicity, non-irritating, non-flammable (closed cup flash point > 150°C), low toxicity to aquatic organisms, and easily biodegradable, fully meeting the clean production standards of the modern paper industry. In addition, a single product can cover multiple key processes from pulping black liquor to paper machine white water circulation, coating, and surface sizing, greatly simplifying procurement and inventory management.
| Parameter Item | Parameter Value |
|---|---|
| Product Type | Non-ionic polyether ester defoamer |
| Main Component | Polyoxyethylene polyoxypropylene ether fatty acid ester |
| CAS Number | 9004-81-3 |
| Appearance | White to light yellow viscous liquid |
| Dispersibility | Self-emulsifying dispersion in water |
| Ionic Characteristic | Non-ionic |
| Acute Toxicity (Oral, Rat) | LD50 > 2000 mg/kg |
| Skin/Eye Irritation | Non-irritating |
| Skin Sensitization | Non-sensitizing |
| Flash Point (Closed Cup) | > 150°C |
| Aquatic Toxicity LC50 (Fish, 96h) | > 100 mg/L |
| Hazard Classification | Non-hazardous substance |
The papermaking defoamer XS-02 can achieve ideal foam control at very low dosages. It is recommended to determine the optimal dosage through experiments based on specific working conditions. This product is widely applicable in the following areas: