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When using a crosslinking agent, try to avoid adding acidic fillers, and be careful when adding antioxidants. Other aromatic hydrocarbon oil additives will have adverse effects on the crosslinking effect, so you must pay attention to this.
Polyethylene (PE) cables, pipes and other products are greatly improved after cross-linking, such as mechanical and mechanical properties, heat resistance and environmental stress cracking resistance (ES-CR has been greatly improved, used for such products. In addition to dicumyl peroxide, the cross-linking agent is also cross-linked by silane grafting.
For example, vinyltriethoxysilane (A1522), whose silicon content is 13.5% to 14.5%, is a crosslinking agent.
Example Cross-linked polyethylene material
HDPE 50
LLDPE 50
A151 0.5~2
DCP 0.5~1
Dibutyltin dilaurate 0.5
Here A151 is a crosslinking agent, DCP is a grafting initiator, and dibutyltin dilaurate is a grafting catalyst. The production process adopts a two-step method or a one-step method to obtain a cross-linked product. Cross-linked PE pipes can be used to transport hot water, gas, chemical corrosive liquids, etc.
