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:北京市朝陽區(qū)北三環(huán)東路15號2號信箱
  • 郵編:100929
  • 電話:010-64436820
  • 傳真:010-64436820
  • Email:zhangsheng@mail.buct.edu.cn
當前位置:> 首頁 > 論文著作 > 正文
Chitosan/sodium polyborate based micro-nano coating with high flame retardancy and superhydrophobicity for cotton fabric
作者:Peng Qi, Shuheng Wang, Wenjia Wang, Jun Sun, Hongfu Yuan, Sheng Zhang
關(guān)鍵字:用于棉織物的高阻燃超疏水殼聚糖/多硼酸鈉基微納米涂層
論文來源:期刊
發(fā)表時間:2022年

  In this work, a sustainable flame retardant and superhydrophobic cotton fabric was prepared by a two-step process: the cotton fabric was firstly treated with a chitosan/sodium polyborate polyelectrolyte complex water solution to obtain a flame retardant layer, and then treated with a polydimethylsiloxane (PDMS) tetrahydrofuran solution to construct a superhydrophobic layer. The phase-separated chitosan with a micro-nano roughness structure was covered by PDMS, which synergistically improved the hydrophobicity of the cotton fabric. The flammability evaluation indicated that the limiting oxygen index value of the treated fabric was increased to 40.0% from 18.2%, the peak of heat release rate was reduced by 63.8%, and the total heat release was reduced by 57.6% compared with that of the control sample. The enhanced flame retardancy was attributed to the excellent charring ability in the condensed phase. The treated fabric also showed anti-sticking, self-cleaning, and oil/water-separating properties. This coating treatment without any F, Cl, Br, P elements involved is regarded as a clean methodology for producing flame retardant and superhydrophobic cotton fabrics.


在這項工作中,通過兩步工藝制備了一種可持續(xù)的阻燃超疏水棉織物:首先用殼聚糖/聚硼酸鈉聚電解質(zhì)復(fù)合水溶液處理棉織物以獲得阻燃層,然后用聚二甲基硅氧烷處理(PDMS) 四氫呋喃溶液構(gòu)建超疏水層。具有微納米粗糙結(jié)構(gòu)的相分離殼聚糖被PDMS覆蓋,協(xié)同提高了棉織物的疏水性。阻燃性評價表明,處理后織物的極限氧指數(shù)值由18.2%提高到40.0%,放熱率峰值降低63.8%,總放熱量比處理后織物降低57.6%。對照樣品。增強的阻燃性歸因于凝聚相中優(yōu)異的炭化能力。處理后的織物還顯示出防粘、自清潔和油/水分離性能。這種不含任何 F、Cl、Br、P 元素的涂層處理被認為是生產(chǎn)阻燃和超疏水棉織物的清潔方法。

主站蜘蛛池模板: 廊坊市| 桃园市| 乐至县| 江永县| 镇赉县| 郑州市| 澄城县| 怀仁县| 通河县| 余江县| 青岛市| 茌平县| 淄博市| 阿尔山市| 高密市| 保康县| 岳阳市| 三门峡市| 沙洋县| 左云县| 通州区| 都安| 贺兰县| 六枝特区| 昂仁县| 黑水县| 鹤岗市| 龙里县| 罗田县| 应城市| 天气| 宜宾县| 瑞安市| 墨江| 永德县| 嘉鱼县| 宁蒗| 上思县| 汪清县| 华池县| 平度市|