陶氏光伏 POE：以材料创新提升新一代组件的效率与可靠性

张文馨

陶氏化学（中国）投资有限公司

E-mail: emmazhang@dow.com

报告摘要

针对新一代光伏组件对封装可靠性与生产效率的更高要求，本文介绍陶氏快速固化光伏级 POE 新牌号（XUS 38691.00 / XUS 38698.00）。新牌号剪切变稀更强，挤出黏度更低，固化更快，可减少助交联剂用量。在 EPE 结构中，它们能在储存后保持芯层凝胶含量，从而缓解分层与气泡风险。DH1000 h 后，其粘接力较普通 POE 提升约 40%，透光率也有提高。在 Ag/Cu 金属化电池和 Poly-finger 电池中，POE 封装的湿热、UV 及抗 PID 性能优于 EVA 和 EPE 方案。在 0BB 组件的皮肤膜应用中，多种聚烯烃材料组合可实现稳定焊带接触、可控树脂流动和低尺寸变化。与气相法 POP 相比，POE 在透光率、加工性和产出方面更具优势。

关键词： POE；光伏胶膜；快速固化；PID；Ag/Cu 金属化；Poly-finger；0BB 皮肤膜

Dow PV POE: Material Innovation for More Efficient and Reliable Next-Generation Modules

Abstract

To meet the growing demands for encapsulation reliability and production efficiency in next-generation PV modules, this paper presents Dow's new fast-cure PV-grade POE resins (XUS 38691.00 / XUS 38698.00). The new grades show stronger shear thinning, lower extrusion viscosity, and faster curing, which allows a lower coagent dosage. In EPE structures they retain core-layer gel content after storage, which helps reduce delamination and bubble risks. After DH1000 h, adhesion is about 40% higher than that of regular POE, and transmittance is also improved. For Ag-seed/Cu metallized cells and Poly-finger cells, POE encapsulation outperforms EVA and EPE schemes in damp-heat, UV and PID resistance. For 0BB module skin films, a portfolio of polyolefin-based materials delivers stable ribbon contact, controlled polymer flow, and low dimensional change. Compared with gas-phase POP, POE offers advantages in transmittance, processability and output.

Keywords: POE; PV encapsulant; fast curing; PID; Ag-seed/Cu metallization; Poly-finger; 0BB skin film