为了响应国家“双碳”战略,绿色制备了高强伸耐老化的乙丙胶粉基聚丙烯热塑性弹性体,优化了乙丙胶粉与聚丙烯的橡塑比,确定了相容剂的品种、用量,优化了乙丙胶粉与聚丙烯的化学接枝工艺。结果表明:环保相容剂2,4-二叔丁基过氧化异丙苯(BIBP)与硫磺S8并用,乙丙胶粉基聚丙烯热塑性弹性体的力学和耐老化性能优异,拉伸强度达20MPa,扯断伸长率达800%以上,可用于耐老化汽车配件、码头缓冲器、各种胶管胶板等产品的负碳制备。
In order to respond to the national “double carbon” strategy,this paper greenly prepared an ethylene propylene rubber powder-based polypropylene thermoplastic elastomer with high strength and aging resistance,optimized the ratio of ethylene propylene rubber powder and polypropylene,determined the variety and dosage of compatibilizers,and optimized the chemical grafting process between ethylene propylene rubber powder and polypropylene.The experimental results showed that using environmentally friendly compatible agent 2,4-di-tert-butylperoxyisopropylbenzene (BIBP) together with sulfur S8 could make the rubber powder-based polypropylene thermoplastic elastomer have excellent mechanical and aging resistance.The tensile strength reached 20MPa,and the elongation at break was more than 800%.This material could be used in the preparation of negative carbon for aging resistant auto parts,pier buffers,various rubber hoses and plates as well as other products.
[1] Alencar P G,Saares B G,Silva A A.Attaining low percolation threshold in condutive polypropylene/nitrile rubber thermoplastic vulcanizates using carbon nanotube[J].Journal of Applied Polymer Science,2020,138(7):161-168.
[2] 陶国良,徐蕙,夏艳平,等.不同类型促进剂对废胶粉/乙烯-1-辛烯共聚物弹性体性能的影响[J].化工新型材料,2018,46(4):185-188.
[3] 李雪健,邱桂学.填料对聚丙烯/胶粉复合材料力学性能的影响[J].青岛科技大学学报(自然科学版),2019,40(6):71-77.
[4] 黄溪岱,胡海华,何连成,等.丁腈橡胶/橡塑材料并用研究进展[J].合成橡胶工业,2021,44(1):70-75.
[5] 臧亚南,王艳秋,刘琼琼.防水卷材用改性胶粉/EPDM/PP热塑性弹性体的制备和性能研究[J].化工新型材料,2017,45(6):83-87.
[6] 刘爽,彭宗林,王仕峰,等.胶粉基热塑性弹性体的研究与应用进展[J].高分子材料科学与工程,2021,37(11):164-171.
[7] 邹亮,陶国良,苏为力,等.不同促进剂对PP/PP-g-MAH/脱硫胶粉共混物性能影响[J].工程塑料应用,2021,49(2):147-151.
[8] 邹亮,陶国良.废胶粉/聚丙烯织物共混材料的制备与性能[J].合成橡胶工业,2022,45(1):35-39.
[9] 陶国良,廖小军,方建波,等.不同弹性体对聚丙烯的协同增韧[J].高分子材料科学与工程,2013,29(3):55-59.
[10] 周翰林,陶国良,夏艳平,等.废旧胶粉/聚丙烯/环氧树脂复合材料的结构和性能研究[J].材料科学,2019,66(7):499-504.
[11] 王艳秋,祝木伟,刘太闯,等.一种轮胎胶粉/聚丙烯热塑料弹性体的绿色制备方法:CN113150418A[P].2021-07-23.
[12] 王艳秋,祝木伟,马庆丽,等.一种高填充精细丁腈橡胶/聚氯乙烯热塑性弹性体的制备方法:CN113201175A[P].2021-08-03.
[13] 王艳秋,祝木伟,刘太闯,等.一种乙丙胶粉/聚丙烯高质量热塑性弹性体的制备方法:CN113061307A[P].2021-07-02.
[14] 陶国良,杨健,夏艳平,等.复合促进剂对双螺杆诱导废轮胎胶粉力化学脱硫反应的影响[J].合成橡胶工业,2015,38(4):299-303.
基金资助
国家自然科学基金(51273172);江苏省“双碳”科技创新专项项目(BE2022019);徐州市“双碳”项目(KC22348);徐州工业职业技术学院高层次人才科研启动专项(XGY2021EG06)
PDF
