FINE CHEMICALS 1003-5214 2023 40 7 article 改性凹凸棒土對PBAT阻燃性能的影響 Effect of Modified Attapulgite on Flame Retardancy of PBAT 用費托蠟(FTW)對凹凸棒土(ATP)進行表面改性制備阻燃劑F-ATP,并對F-ATP的形貌、結構及其熱穩定性進行了表征。結果表明,經改性后的ATP團聚現象消失且熱穩定性明顯提高。將阻燃劑F-ATP加入到聚對苯二甲酸/己二酸丁二酯(PBAT)基體中制備了PBAT/F-ATP復合材料。采用LOI、UL-94、CCT、FTIR-TG、拉曼光譜和SEM對復合材料的阻燃性能進行了分析。結果表明,阻燃劑F-ATP添加量為10%(以復合材料質量計,下同)的PBAT/F-ATP復合材料(PBAT-3)阻燃效果最佳,其LOI值達到23.5%,UL-94等級達到V-1級,熔滴現象得到明顯改善。此外,與ATP添加量為10%的PBAT/ATP復合材料相比,PBAT-3復合材料的PHRR、THR值分別降低了4.99%和26.11% 。TG-IR結果表明,PBAT-3復合材料氣態產物的釋放量在整個燃燒過程中均有所降低,起到了很好的氣相阻燃效果,這主要歸因于阻燃劑F-ATP的加入使得PBAT/F-ATP復合材料形成致密且連續性好的炭層結構,有效地隔絕了復合材料內部與外界的熱量/質量的傳遞。 The flame retardant F-ATP was prepared by surface modification of attapulgite (ATP) with fischer-tropsch wax (FTW). The morphology, structure and thermal stability of the flame retardant F-ATP were characterized. The results showed that the aggregation of the modified ATP disappeared and its thermal stability was significantly improved. The flame retardant F-ATP was added to poly (terephthalic acid/butylene adipate) (PBAT) matrix to prepare PBAT/F-ATP composites. The LOI, UL-94, CCT, FTIR-TG, raman spectroscopy and SEM were used to analyze the flame retardancy property of PBAT/F-ATP composite. The results showed that when adding 10 wt% flame retardant F-ATP, the flame retardancy property of PBAT-3 composite was the best, where its LOI value and UL-94 grade reached 23.5% and V-1 grade, and the droplet phenomenon was greatly improved. In addition, compared with the composite including 10wt% ATP, the PHRR and THR values of PBAT-3 composites decreased by 4.99% and 26.11%, respectively. At the same time, the TG-IR results showed that the release of gaseous products of PBAT-3 composites decreased in the whole combustion process, which had a good gas phase flame retardant effect. The outstanding flame retardant property was mainly due to the addition of flame retardant F-ATP, where the PBAT/F-ATP composites formed a dense and continuous carbon layer, which effectively insulates the heat/mass transfer between the interior and exterior of the PBAT/F-ATP composite. 聚對苯二甲酸/己二酸丁二酯;凹凸棒土;費托蠟;力學性能;阻燃性能 poly (butylene adipate-co-butylene terephthalate); attapulgite; fischer-tropsch wax; mechanical properties; flame retardant properties 王波,毛雙丹,林福華,張咪,李向陽 WANG Bo,MAO Shuangdan,LIN Fuhua,ZHANG Mi and LI Xiangyang 1.太原科技大學 化學工程與技術學院;2.中國科學院可再生能源重點實驗室;3.山西化工研究所有限公司 1.College of Chemical Engineering and Technology,Taiyuan University of Science and Technology;2.Key Laboratory of Renewable Energy,Chinese Academy of Sciences;3.Shanxi Chemical Research Institute Co,Ltd jxhg/article/abstract/202211201049
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