平晨卉^1,2,闫红强²,郭正虹²,李娟²,童再再¹,方征平²

• 1:浙江理工大学 材料科学与工程学院， 浙江 杭州 310018
• 2:浙大宁波理工学院 材料科学与工程学院 火安全材料研究所， 浙江 宁波 315100

摘要(Abstract)：

针对丙烯腈-丁二烯-苯乙烯共聚物(ABS)树脂成炭性差的问题,采用不同结构的苯并噁嗪单体(BOZ)与ABS共混,并复配以阻燃剂双酚A双(二苯基磷酸酯)(BDP)和协效剂硼酸锌(ZB),研究了不同结构的BOZ、复配BDP和ZB后对ABS的阻燃性能和力学性能的影响,以期实现ABS树脂的高效无卤阻燃。实验结果显示,BOZ与BDP、ZB复配可以有效改善ABS树脂的成炭性,在ABS树脂阻燃改性中显示出优异的协同性。ABS/10C/15B/2ZB样品的极限氧指数(LOI)高达34.4%,热释放峰值(PHRR)、总热释放量(THR)、平均有效燃烧焓(AEHC)、总耗氧量(TOC)和总烟释放率(TSR)分别降低了45.4%、22.8%、23.2%、21.9%和7.7%,并且火灾性能指数(FPI)和火灾蔓延指数(FGI)也得到明显改善。同时,其拉伸强度也提高至40.2 MPa,略高于纯ABS树脂的39.9 MPa。因此,BOZ与阻燃剂BDP和成炭协效剂ZB复配可实现ABS树脂在阻燃与力学性能的协同优化。

关键词(KeyWords)： ABS树脂;苯并噁嗪树脂;成炭性;阻燃;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51991355).

作者(Author): 平晨卉^1,2,闫红强²,郭正虹²,李娟²,童再再¹,方征平²

参考文献(References)：

• [1] 高顺, 郭正虹. PC/ABS合金的气相/凝聚相协同阻燃作用[J]. 浙江大学学报(工学版), 2020, 54(12): 2321-2328. GAO S, GUO Z H. Synergistic flame retardancy of gas phase and condensed phase of PC/ABS alloy[J].Journal of Zhejiang University (Engineering Science), 2020, 54(12): 2321-2328.
  [2] SINI N K, ENDO T. Toward elucidating the role of number of oxazine rings and intermediates in the benzoxazine backbone on their thermal characteristics[J].Macromolecules, 2016, 49(22): 8466-8478.
  [3] ZHANG S, RAN Q C, GU Y. Polymerization mechanism of 1,3-benzoxazine catalyzed by PCl₅ and rearrangement of chemical structures[J].European Polymer Journal, 2021, 142: 110133.
  [4] 殷平, 闫红强, 程捷, 等. 新型生物基苯并口��嗪的合成及性能[J]. 高等学校化学学报, 2019, 40(5): 1071-1079. YIN P, YAN H Q, CHENG J, et al. Synthesis and properties of a novel bio-based benzoxazine[J].Chemical Journal of Chinese Universities, 2019, 40(5): 1071-1079.
  [5] RIGOUSSEN A, RAQUEZ J M, DUBOIS P, et al. A dual approach to compatibilize PLA/ABS immiscible blends with epoxidized cardanol derivatives[J].European Polymer Journal, 2019, 114: 118-126.
  [6] RIGOUSSEN A, VERGE P, RAQUEZ J M, et al. In-depth investigation on the effect and role of cardanol in the compatibilization of PLA/ABS immiscible blends by reactive extrusion[J].European PolymerJournal, 2017, 93: 272-283.
  [7] 王光开, 林晓丹, 杨兵, 等. 苯并噁嗪树脂用于ABS阻燃的研究[J]. 塑料工业, 2011, 39(5): 121-123. WANG G K, LIN X D, YANG B, et al. Research on flame retardance of ABS by benzoxazines[J].China Plastics Industry,2011, 39(5): 121-123.
  [8] YAN H Q, SUN C, FANG Z P, et al. Synthesis of an intrinsically flame retardant bio-based benzoxazine resin[J].Polymer, 2016, 97: 418-427.
  [9] ZHAN Z M, YAN H Q, YIN P, et al. Synthesis and properties of a novel bio-based benzoxazine resin with excellent low-temperature curing ability[J].Polymer International, 2019, 69(4): 355-362.
  [10] ZHAN Z M, YAN H Q, WANG H Q, et al. Novel full bio-based phloroglucinol benzoxazine resin: Synthesis, curing reaction and thermal stability[J].Polymer, 2020, 200: 122534.
  [11] YAN H Q, ZHAN Z M, WANG H Q, et al. Synthesis, curing, and thermal stability of low-temperature-cured benzoxazine resins based on natural renewable resources[J].ACS Applied Polymer Materials, 2021, 3(7): 3392-3401.
  [12] HAUBOLD T S, WOLTER N, SANDINGE A, et al. How phosphorous flame retardant additives affect benzoxazine-based monomer and polymer properties[J].Macromolecular Materials and Engineering, 2023, 308(11): 2300132.
  [13] KARRASCH A, WAWRZYN E, SCHARTEL B, et al. Solid-state NMR on thermal and fire residues of bisphenol A polycarbonate/silicone acrylate rubber/bisphenol A bis(diphenyl-phosphate)/(PC/SiR/BDP) and PC/SiR/BDP/zinc borate (PC/SiR/BDP/ZnB)-Part I: PC charring and the impact of BDP and ZnB[J].Polymer Degradation and Stability, 2010, 95(12): 2525-2533.