国产日产欧美精品-亚洲国产综合久久精品-色综合色国产热无码一-亚洲欧美日本国产,免费观看一区二区三区_在线观看片A免费不卡观看_亚洲а∨天堂久久精品_99久无码中文字幕一本久道

產品展廳收藏該商鋪

您好 登錄 注冊

當前位置:
美國布魯克海文儀器公司>技術文章>Assembly of nanoparticles-polyelectrolyte complexes in nanofiber cellulose structures

技術文章

Assembly of nanoparticles-polyelectrolyte complexes in nanofiber cellulose structures

閱讀:279          發(fā)布時間:2017-10-17
 作者 Uthpala M. Garusinghea. Vikram S. Raghuwanshia. Christopher J. Garveyc. Swambabu Varanasia. Christopher R. Hutchinsonb. Warren Batchelora. Gil Garniera.

a

BioResource Processing Research Institute of Australia (BioPRIA), Department of Chemical Engineering, Monash University, VIC-3800, Australia

b

Department of Materials Science and Engineering, Monash University, VIC-3800, Australia

c

Australian Nuclear Science and Technology Organisation (ANSTO), Locked Bag 2001, Kirrawee DC, NSW 2232, Australia

 

摘要:We report the effect of cationic polyacrylamide (CPAM) addition on the structural assembly of silica nanoparticles (NPs) within a nanocellulose fibre matrix. Paper like composites are fabricated by first forming complexes of NPs with CPAM, then adding those to a suspension of nanocellulose fibres; followed by filtration, pressing and drying of the final suspension. Complementary small angle X-ray scattering (SAXS) and microscopy (SEM, TEM) investigations of these composites showed a lognormal bimodal distribution of NP sizes. Data analysis allows understanding interparticle interactions within assemblies of SiO2 NPs at the nanometer scale with respect to different dosage of CPAM. Increasing CPAM dosage increases retention of NPs within the cellulose matrix with stronger interparticle interactions and produces composites with smaller pores. The correlation length of NPs, indicative of the size of the NP clusters increased from 30 to 70 nm as the CPAM dosage increased from 16.5 to 330 mg/g NPs. Retention and assembly of SiO2 NPs by varying CPAM dosage results from the balance of different interaction forces between NPs, CPAM and nanocellulose fibres. Understanding the effect of CPAM dosage on the various NP and composite structural conformations enables us to engineer novel hierarchically and functional cellulose based structured materials.

收藏該商鋪

登錄 后再收藏

提示

您的留言已提交成功!我們將在第一時間回復您~

對比框

產品對比 產品對比 聯(lián)系電話 二維碼 意見反饋 在線交流

掃一掃訪問手機商鋪
010-62081908
在線留言
盐池县| 水富县| 河北区| 大埔县| 神农架林区| 安图县| 新昌县| 达拉特旗| 平舆县| 保靖县| 常德市| 平山县| 武夷山市| 富锦市| 永州市| 乡宁县| 定襄县| 古蔺县| 和林格尔县| 岢岚县| 常州市| 额敏县| 永年县| 遂平县| 武强县| 枝江市| 富蕴县| 天镇县| 沧州市| 宜章县| 中方县| 通州市| 宜州市| 广灵县| 邵武市| 肥乡县| 宜宾县| 秦安县| 潍坊市| 阜宁县| 额尔古纳市|