●Overview

The sodium polyacrylate used for cables is not merely a highly absorbent polymer; it also needs to meet the demanding requirements of industrial environments:

· Ion tolerance: The moisture within the cable is usually an electrolyte solution containing metal ions (such as those from grounding or corrosion). The water absorption capacity of sodium polyacrylate significantly decreases in salt water (it may only be one-tenth or less of that in deionized water). Therefore, cable-grade products will enhance ion tolerance and gel strength through cross-linking adjustment, molecular structure optimization, or by combining with other materials (such as bentonite).

· Long-term stability: It is necessary to maintain stable performance throughout the cable's lifespan (several decades), without decomposition, loss, or corrosion of the metal conductor.

· Thermal stability: It could withstand the heat generated during cable operation as well as the processing temperatures during the manufacturing process.

· Compatibility with cable materials: It should have no adverse reactions with insulating materials (such as PE, XLPE, PVC) or sheath materials.

●Corresponding grades and characteristics

This application are mainly using sodium polyacrylate

SR800: It has long term stability and thermal stability, has no adverse reaction with insulation materials such as PE, XLPE, PVC etc.