Shanghai Gengyun Industrial Co., Ltd
High Quality Water Blocking/Waterproof Powder for Optical Fiber Cable
Water blocking powder is also an important material used for water blocking in optical cables. Water blocking powder is a polymer compound with low crosslinking density, insoluble in water, and high water expansion, abbreviated as SAP. The cross-linking density is low. And the water molecules are easy to penetrate into the resin to make the resin expand. Further hydrophilic and gelatinize into a state of high water absorption. But the crosslinking degree cannot be too low, otherwise it will dissolve in water.
Waterproof powder Technical Indicators and Performance |
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Composition | Shape | Water Absorption Capacity | pH | Moisture Content | |
Water g/g | NaCl(0.9%)/times | ||||
Crosslinked Polyacrylate | White Powder | 800~1000 | 80~100 | Neutrality | ≤7% |
Processing Performance and Application:(1) The processing performance of water blocking powder is mainly reflected in two aspects. Fluidity and adhesion ability. Fluidity affects the uniformity of water blocking powder coating. Good fluidity, good uniformity of coating. And adhesive ability and fluidity are a pair of contradictions. Water blocking powder with good fluidity has relatively poor adhesion ability. How to balance this contradiction determines the processing performance of water blocking powder. Application① Used for processing water blocking tapes. |
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