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      石墨烯微膠囊/海藻酸鈣對滌綸織物的阻燃處理
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      大連工業大學紡織與材料工程學院

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      TS102.2

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      Flame-retardant treatment of polyester fabric by graphene microcapsules/calcium alginate
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      School of Textile and Material Engineering,Dalian Polytechnic University

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        摘要:

        為提高滌綸織物的阻燃性能,并解決滌綸織物的熔滴現象,本文采用石墨烯微膠囊與海藻酸鈉共混制備出阻燃涂覆液,采用浸軋法制備阻燃涂覆滌綸織物??疾焱扛矞炀]織物的阻燃性能,力學性能以及熱學性能,結果表明:25g/L的海藻酸鈉和1g的石墨烯微膠囊阻燃涂覆處理后的滌綸織物的極限氧指數由19.7%,上升到28.34%,達到難燃織物的標準。整理后的滌綸織物達到了V-0標準,滌綸織物燃燒后產生的熔滴的現象消失??椢锏臄嗔褟娏τ?35.21N降低到了106.77N。涂覆處理前后,織物達到最大熱分解速率的溫度未產生明顯變化,殘炭率由12.07%上升到了26.98%,最大質量損失速率由1.79%/℃降低到了0.96%/℃。同時整理前后滌綸織物的熱焓值由58.4J/g上升至68.4J/g??椢锏膶嵯禂涤?.587 W/cm.℃×10-4提高到0.842W/cm.℃×10-4,熱學性能得到了充分的提高。織物燃燒后所形成的殘炭由無到連續且致密。

        Abstract:

        In order to improve the flame retardant properties of polyester and solve the phenomenon of droplets of polyester fabrics, the coating liquid was prepared by blending graphene microcapsules with sodium alginate, and the coating polyester fabric was prepared by dip rolling method. The flame retardant properties, mechanical properties and thermal properties of the coated polyester fabric were examined, and the results showed that the limit oxygen index of the polyester fabric after the 25g/L sodium alginate and 1g graphene microcapsule flame retardant coating was increased from 19.7% to 28.34%, reaching the standard of flame retardant fabric. The finished polyester fabric reaches the V-0 standard, and the phenomenon of droplets of polyester disappears. The breaking strength of the fabric was reduced from 135.21N to 106.77N. Before and after the coating treatment, the temperature at which the fabric reaches the maximum thermal decomposition rate does not change significantly, the residual carbon rate increases from 12.07% to 26.98%, and the maximum mass loss rate decreases from 1.79%/°C to 0.96%/°C. At the same time, the enthalpy value of the polyester fabric before and after finishing increased from 58.4J/g to 68.4J/g. The thermal conductivity of the fabric was increased from 0.587 W/cm.°C× 10-4 to 0.842W/cm.°C×10-4, and the thermal properties were fully improved. The residual carbon formed after the fabric is burned from none to continuous and dense.

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      谷金峻,魏春艷,郭紫陽,殷潔瑤,白晉,趙航慧妍.石墨烯微膠囊/海藻酸鈣對滌綸織物的阻燃處理[J].精細化工,2023,40(7):

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      歷史
      • 收稿日期:2022-10-11
      • 最后修改日期:2023-01-05
      • 錄用日期:2023-01-06
      • 在線發布日期: 2023-05-11
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