Surface sizing agent BRSS-202D
1. Characteristics
Surface sizing agent BRSS-202D is a kind of styrene-acrylate copolymer emulsion. It is nano-sized latex with smaller particle size and higher zeta potential. The addition of BRSS-202D can rapidly obtain good sizing effect，anti-humidity and environmental stability for paper or board，even with less amount of aluminum sulfate. It can be used in corrugated paper, cardboard paper, coated paper and white cardboard, etc.
2. Physical & Chemical Properties
Requirement | |
Appearance | Yellow or brown aqueous dispersion |
Solid Content(%) | 30.0±1.0 |
pH value | 3-5 |
Viscosity (mPa·s, 25℃) | ≤ 100 |
Density (g/cm3) | 1.0-1.1 |
Ionicity | Weak cationic |
3. Usage
The recommended dosage is 0.5-2 kg per ton paper. The dosage in each case is related to water-proof demand, raw material, paper machine and so on.
Generally, the product is continuously added into the gelatinized starch tank or pipe, or added into the storage tank in batches.
The temperature of starch solution should not be higher than 70℃. Higher temperature will affect surfacing sizing effect.
4. Packing & Storage
l Polyethylene plastic drum, net weight 200kg/1000kg.
l The product should be kept sealed in a cool, dry and ventilated warehouse, and especially should be prevented from freezing and exposure. The storage period is 6 months.
