中国塑料2026，Vol.40Issue(8)：71-76,6.DOI:10.19491/j.issn.1001-9278.2026.08.012
基于双转子连续混炼挤出机的热塑性淀粉制备及工艺参数的影响
Preparation of thermoplastic starch via twin-rotor continuous mixing extrusion and influence of process parameters
代久双 1冉真真 2万舟 3罗贵莹 2李果 3谢林生3
作者信息
- 1. 华东理工大学,绿色高效过程装备与节能教育部工程研究中心,上海 200237||泸州北方化学工业有限公司,四川 泸州 646003
- 2. 泸州北方化学工业有限公司,四川 泸州 646003
- 3. 华东理工大学,绿色高效过程装备与节能教育部工程研究中心,上海 200237
- 折叠
摘要
Abstract
Using corn starch as the raw material and glycerol as the plasticizer,thermoplastic starch(TPS)was success-fully fabricated via melt extrusion with a twin-rotor continuous mixing extruder.The effects of key process parameters,including screw speed and feed rate,on the microstructure,crystalline structure,mechanical performance,and hydropho-bicity of TPS were systematically investigated to clarify the correlation between processing conditions and material struc-ture and properties.The experimental results show that moderate increases in screw speed and feed rate facilitate the plasticization of starch,which reduces the crystallinity of TPS and effectively improves its toughness and hydrophobicity.Nevertheless,excessively high screw speed or feed rate exerts adverse impacts on the comprehensive performance of TPS.The optimal overall performance of the prepared TPS is obtained at a screw speed of 200 rad/min and a feed rate of 3 kg/h.Under this optimal condition,the TPS sample achieves tensile strength of 0.74 MPa,elongation at break of 195%,and a water contact angle of 88.4 °.关键词
热塑性淀粉/双转子连续混炼挤出机/转速/加料量Key words
thermoplastic starch/two-rotor continuous mixing extruder/rotor speed/feeding rate分类
化学化工引用本文复制引用
代久双,冉真真,万舟,罗贵莹,李果,谢林生..基于双转子连续混炼挤出机的热塑性淀粉制备及工艺参数的影响[J].中国塑料,2026,40(8):71-76,6.
