應用石油基黏結劑於高密度石墨塊材之製作

Developing Petroleum-Based Binder for the Application of High Density Graphite

張家林(Chia-Lin Chang) ； 陳彥旭(Yan-Shi Chen) ； 張癸森(Kuei-Sen Chang) ； 李繼喜(Jih-Shi Lee) ； 呂國旭(Gao-Shee Leu)

《化學》 74卷4期 (2016/12) Pp. 349-357

https://doi.org/10.6623/chem.2016028

摘要

工業級石墨塊材由於優秀的等向機械或熱性質等，被廣泛地應用在放電加工電極、模具、承載盤、醫療與長晶爐等領域。在其製作過程中，需要高品質的黏結劑來將基材與填充材緊密的結合，成型後的工業級石墨塊材才能發揮最大的性能。本研究使用中油公司自己由重質油精製而成的黏結劑，並混以市售石墨基材(250 μm)試製成四吋工業級石墨塊材母材，尚未經浸漬增密、碳化與石墨化，工業級石墨塊材母材密度已有1.7 kg/m^3，且無裂痕，證明中油自產之粘結劑與石墨基材之間介面結合良好，具有相當的市場競爭性。

關鍵字

工業級石墨塊材 ； 黏結劑 ； 重質油

並列摘要

High density graphite is widely used in the fields of steelmaking, defense and aerospace industries due to their high mechanical properties. Binders are crucial to the process in making c/c composites since the matrix and fillers need to combine entirely. A good binder should have high coking value or carbon yield, high βresin and good thermal stability. In this study, we applied thermal analysis (DSC/TGA) on our samples which show better thermal stability than COPNA resins’ one. Also our samples exhibit great binding ability via the empirical relationship. These promising characteristics make our binders competitive products in the market.

並列關鍵字

High density graphite ； Binders ； Heavy oil