CIMS論文的天地

 

Preparation of mesocarbon microbeads from coal tar

注意:本論文已在JOURNAL OF MATERIALS SCIENCE 34 (1999) 4043 – 4050發表
使用者請注明論文出處

YONG-GEN LU¨(呂永根) , LICHENG LING, DONG WU, LANG LIU, BIJIANG ZHANG
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy
of Science, P.O.B. 165, Taiyuan Shanxi, People’s Republic of China
ISAO MOCHIDA
Institute of Advanced Material Study, Kyushu University, Kasuga, 816, Japan


Abstract:Mesocarbon microbeads (MCMB) was prepared from coal tars with various primary pyridine insoluble fraction (PI) contents from 0 to 3.7 wt %, through heat treatment at 430–480 ℃ for different time under autoginious pressure. The heat treated coal tars were filtered under 150℃and the residue was rinsed with pyridine. MCMB was obtained as the pyridine insoluble fraction. Both yield and diameter of MCMB increased with the increasing of reaction temperature and holding time. It was found that primary PI also had strong influence on the formation of MCMB, which restricting coalescence between mesophase spheres by sticking on the surface of mesophase spheres or dispersing in the matrix. Low temperature, short reaction time and high PI content resulted in the MCMB with small diameter and narrow size distribution. Carbon block with 1.75 g/cm3 density could be easily obtained from the MCMB after molded under 100 MPa and carbonized at 1000℃ .

.

1瀏覽PDF格式全文需要使用軟件--Abode Acrobat(由于軟件較大并常見,我站不提供下載)

2、下載論文全文請點擊鼠標右鍵“另存為”或使用斷點續傳軟件下載(1,222KB)
下載鏈接:a.廣東鏡像下載 b.朋友免費提供的付費空間下載


本站收錄的本文作者的其他論文:

1、SKIN-CORE STRUCTURE IN MESOPHASE PITCH-BASED CARBON FIBERS: CAUSES AND PREVENTION

2、Preparation of Porous Carbon Microspheres

3、用稱重法研究聚丙烯腈樹脂的凝固過程

 更多相關論文請點擊本站的<<<站內全文搜索>>>查找

 

歡迎您參加討論,發表您對此論文及其研究領域的看法!
(請在發言時在標題中使用所點評的論文的題目或研究方向,這樣方便大家瀏覽!)

返回首頁 | CIMS論文 | 并行工程 | 虛擬制造 | 敏捷制造 | 其他論文 | 項目開發 | 學術資源 | 站內全文搜索 | 免費論文網站大全 |

line.gif (4535 字節)

為了更好的為大家服務,歡迎您參加本站的投票調查

>>>>參加更多投票調查請點擊!

本站永久域名:http://www.ucytct.live歡迎訪問

注意:本站內容未經書面允許不得轉載

All rights reserved, all contents copyright 2000-2019
本站自2000年3月總網頁訪問量為
湖南快乐十分开奖情況