私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

當前位置:群英聚首 > 論文著作 > 正文
Ultrasonic irradiation enhanced cell nucleation: An effective approach to microcellular foams of both high cell density and expansion ratio
來源:余堅副研究員個人網站 發布日期:2009-11-20
作者:翟文濤, 余堅*, 何嘉松.
關鍵字:Cell nucleation,Microcellular foam,Ultrasonic irradiation
論文來源:期刊
具體來源:Polymer, 2008, 49(10): 2430-2434.
發表時間:2008年

In this work, ultrasonic irradiation (UI) was used as the external energy source to assist polystyrene foaming process by using supercritical CO2 as the physical blowing agent. It is shown that by introducing the UI at the very start of foaming, the resultant polymer foam exhibited significant and concurrent increase in cell density, i.e., three orders of magnitude, and expansion ratio, i.e., 1–3 times, compared to
those without UI. Further experiments indicate that the enhanced cell nucleation induced by UI was the main reason for this unique phenomenon. This method also provided new insight into the mechanism of cell nucleation.

Copyright © 2005 Polymer.cn All rights reserved
中國聚合物網 版權所有
經營性網站備案信息

京公網安備11010502032929號

工商備案公示信息

京ICP證050801號

京ICP備12003651號

主站蜘蛛池模板: 化隆| 昆明市| 攀枝花市| 佛山市| 依兰县| 宝坻区| 大英县| 黔西| 丰县| 荆州市| 丹凤县| 阿巴嘎旗| 凤凰县| 宜川县| 阳高县| 鄂州市| 左贡县| 凤山市| 寿阳县| 手游| 扎囊县| 安乡县| 汶川县| 吴旗县| 保山市| 哈巴河县| 庄浪县| 东乡族自治县| 连江县| 木兰县| 岳普湖县| 津南区| 福泉市| 灌阳县| 双桥区| 博兴县| 巨野县| 原平市| 麻阳| 日喀则市| 宣威市|