中国塑料2026，Vol.40Issue(8)：56-62,7.DOI:10.19491/j.issn.1001-9278.2026.08.010
改性聚苯醚发泡珠粒的制备及其性能研究
Preparation and properties of modified polyphenylene ether foam beads
刘亦枫 1卢泰晨 2刘本刚3
作者信息
- 1. 四川大学匹兹堡学院,成都 610207
- 2. 河北明润复合材料科技有限公司,河北 衡水 053700
- 3. 河北明润复合材料科技有限公司,河北 衡水 053700||北京阜泉科技有限公司,北京 101105
- 折叠
摘要
Abstract
Modified polyphenylene ether(MPPE)foam beads were prepared via supercritical CO2 bead foaming.Poly-phenylene ether(PPE)was blended with high-impact polystyrene(HIPS),and polyethylene terephthalate(PET)or polyamide 6(PA6)was introduced as the dispersed phase,with RDP/BDP as flame retardants and SEBS-g-MAH/ep-oxy chain extender as the compatibilization and chain-extension system.The MPPE microbeads were foamed in an auto-clave with supercritical CO2 and then molded by steam chest molding.The results show that the injection-molded speci-mens of the optimal formulation(PPE/HIPS/PET=55/30/15)exhibited a tensile strength of 67.7 MPa,a notched Izod impact strength of 21.0 kJ/m2 and a UL 94 V-0 rating,and the corresponding foam beads possessed an average cell diameter of 2.74 μm,a cell density of 1.71×1010 cells/cm3 and an apparent density of 0.095 g/cm3.As the product den-sity increased from 99 kg/m3 to 297 kg/m3,the compressive strength increased from 0.70 MPa to 4.51 MPa,the tensile strength from 0.59 MPa to 3.36 MPa,and the thermal conductivity increased from 0.040 W/(m·K)to 0.058 W/(m·K).The low-density products combine good mechanical properties with excellent thermal insulation performance.关键词
改性聚苯醚/发泡珠粒/异相成核/泡孔结构/超临界二氧化碳Key words
modified polyphenylene ether/foam beads/heterogeneous nucleation/cellular structure/supercritical carbon dioxide分类
化学化工引用本文复制引用
刘亦枫,卢泰晨,刘本刚..改性聚苯醚发泡珠粒的制备及其性能研究[J].中国塑料,2026,40(8):56-62,7.
