| Effect of Protective Waxes on Insulation Performance of CPE Wires |
| Received:August 12, 2024 Revised:August 12, 2024 |
| DOI：10.12136/j.issn.1000-890X.2026.07.0521 |
| Key Words: protective wax；CPE；insulating material；wire；resistance |
| Author Name | Affiliation | E-mail | | LIU Wanping | Shanghai Ruiba New Material Technology Co.，Ltd | jishubu@longsunchem.com | | ZENG Fanwei* | Shanghai Ruiba New Material Technology Co.，Ltd | longsun@longsunchem.com | | WANG Hongqing | Shanghai Ruiba New Material Technology Co.，Ltd | | | LIN Qiang | Shanghai Ruiba New Material Technology Co.，Ltd | | | ZHANG Bozhi | Dongguan Changlian Wire and Cable Technology Co,Ltd | | | YU Yunbao | Dongguan Changlian Wire and Cable Technology Co,Ltd | |
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| Abstract: |
| Using polyvinyl choride（CPE） insulation materials to prepare wires（referred to CPE wires），the effect of protective waxes on the insulation performance of chlorinated polyethylene （CPE） wires was studied.The results showed that compared with 58# paraffin，the crystals of protective wax RW287，RW217 and LSB20 were smaller，the formed wax film was denser，so that the resistance of their CPE wires increased，the insulation performance was better.Adding protective wax could significantly increase the resistance of CPE wires.The larger the protective wax dosage amount was，the greater the resistance of CPE wires was，and the better the insulation performance was better.Moreover，the longer the room temperature storage and water immerdion time was，the greater the improvement of insulation performance of CPE wires by protective wax was.The protective wax LSB20 and RW287，which were suitable for a wider temperature range，had better protective effect on CPE wires.The protective wax LSB20 had better protective effect on CPE wires at normal temperature（25 ℃），while the protective wax RW287 had better protective effect on CPE wires under long-term water immersion conditions. |
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