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

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:重慶北碚天生路2號西南大學化學化工學院
  • 郵編:400715
  • 電話:023-68254000
  • 傳真:
  • Email:mwang@swu.edu.cn
當前位置:> 首頁 > 最新動態(tài) > 正文
The Journal of Physical Chemistry C: 利用立構(gòu)復合晶體調(diào)控碳納米管在PLA/POMA基體內(nèi)分布實現(xiàn)導電和電磁屏蔽性能的增強

全文鏈接:https://pubs.acs.org/doi/10.1021/acs.jpcc.9b07351

Controlling distribution of conductive fillers is a key strategy to construct conductive networks with high efficiency and enhance the conductivity of conductive polymer composites (CPCs). In this work, the distribution of multiwall carbon nanotubes (MWCNTs) in a compatible poly(L-lactide) (PLLA)/poly(oxymethylene) (POM) blend was adjusted by constructing stereocomplex crystallites (SCs). Because of the nucleation effect of SCs, the total crystallinity of the polymer blends increased at the small content of poly(D-lactide) (PDLA). However, the total crystallinity decreased when adding large amount of PDLA due to the confinement effect of SCs. The distribution of MWCNTs could be tuned by the crystallinity of PLLA/POM blends due to the volume-exclusion effect. The electrical conductivity of PLLA/POM/MWCNT composites increased from 1.90 × 10–3 to 5.56 S/m by adding 2.5 wt % PDLA in PLLA phase. However, the electrical conductivity of the composites decreased at high content of PDLA in PLLA phase because the PLLA and POM crystallization was probably confined by the high amount of SCs. The electromagnetic interference shielding effectiveness reached ~28.8 dB in the composites with 3.0 wt % MWCNTs, and the mechanical properties were also improved with the incorporation of proper SCs amount. This work gives a new method to facilitate high-performance CPCs via adjusting distribution of MWCNTs.

主站蜘蛛池模板: 正安县| 灵石县| 兰州市| 平陆县| 乐平市| 永康市| 寿宁县| 邮箱| 东乌珠穆沁旗| 柘荣县| 扶余县| 安丘市| 鄄城县| 绥棱县| 宁化县| 阳原县| 诸暨市| 友谊县| 上林县| 韩城市| 甘孜县| 左贡县| 盐津县| 波密县| 和政县| 正安县| 含山县| 金湖县| 台安县| 威远县| 阿巴嘎旗| 资源县| 水富县| 贵港市| 平定县| 墨玉县| 托克逊县| 黄陵县| 福安市| 团风县| 徐水县|