連續氣相沉積碳纖維墊片與其製造方法Semi-continuous Vapor Grown Carbon Fiber Mat and The Producing Method Thereof

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

12/771,380

專利證號

US 8,617,507 B2

專利獲證名稱

連續氣相沉積碳纖維墊片與其製造方法Semi-continuous Vapor Grown Carbon Fiber Mat and The Producing Method Thereof

專利所屬機關 (申請機關)

國立成功大學

獲證日期

2013/12/31

技術說明

本發明係關於一連續之高導熱係數氣相成長碳纖維墊片，並且係關於製造這種氣相成長碳纖維墊片之方法。此氣相成長碳纖維墊片是由於連續氣相成長碳纖維在特殊的製造過程中受到反應氣體流動與氣相成長碳纖維結晶缺陷之影響而造成連續碳纖維的自我編織，形成了連續的墊片構造，其可形成之墊片長度與寬度皆可隨意調整。由於具有不同於傳統氣相成長碳纖維之連續墊片構造，此氣相成長碳纖維墊片較之以往擁有更佳的熱導係數，且更方便於製造複合材料。 The present invention provides a method for producing a semi-continuous vapor grown carbon fiber mat, comprising: (a) providing a substrate which has a catalyst thereon; (b) placing said substrate in a furnace; (c) loading said furnace with hydrogen, ammonia, or the mixture thereof; (d) adjusting the temperature of said furnace to 400℃ to 900℃ to proceed heat treatment for 15 minutes to 90 minutes; (e) adding a carbon-containing compound into said furnace , and adjusting the ration of said carbon-containing compound and said hydrogen, ammonia or the mixture thereof; and (f) adjusting the temperature of said furnace to 600℃ to 1200℃ to crack said carbon-containing compound, and thereby forming a carbon fiber mat, wherein the reaction time is 1 hour to 3 hours. The present invention also provides a semi-continuous vapor grown carbon fiber mat and a graphitized carbon fiber.

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