Enhanced properties of starch based foams with modified starch/polyester blend as masterbatch,Journal of Applied Polymer Science

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Enhanced properties of starch based foams with modified starch/polyester blend as masterbatch
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2022-07-30 , DOI: 10.1002/app.52951
Huidong Shi ₁ , Yanfeng Zhu ₁ , Qing Ju ₁ , Yucai Shen _{1,

2} , Tingwei Wang _{1,

2}

Affiliation

Starch/PBAT blends were reactively extruded as masterbatch with the addition of tartaric acid (TA) and epoxide chain extender ADR4468 (ADR). The effects of tartaric acid and chain extender on the mechanical properties and structure of starch/PBAT blends were evaluated. The tensile strength of starch/PBAT blends with TA and TA/ADR increased by 31.4% and 85.6%, respectively. Further, starch, plasticizer, and blowing agent were melt extruded with this blend masterbatch, and the effects of masterbatch on the foamability, morphology, and properties of starch foams were investigated. When the masterbatch content was 10 phr, the obtained foam had the lowest apparent density (445.1 kg m⁻³), and the compressive strength, recovery, and water resistance of the foam were also improved significantly.

中文翻译：

以改性淀粉/聚酯共混物作为母料增强淀粉基泡沫的性能

添加酒石酸 (TA) 和环氧化物扩链剂 ADR4468 (ADR) 后，将淀粉/PBAT 共混物作为母料反应挤出。评估了酒石酸和扩链剂对淀粉/PBAT 共混物的机械性能和结构的影响。淀粉/PBAT 与 TA 和 TA/ADR 共混物的拉伸强度分别提高了 31.4% 和 85.6%。进一步将淀粉、增塑剂和发泡剂与该共混母粒进行熔融挤出，研究母粒对淀粉泡沫的发泡性、形貌和性能的影响。当母料含量为10份时，所得泡沫的表观密度最低（445.1 kg m ^-3），并且泡沫的抗压强度、回复性和耐水性也有显着提高。

更新日期：2022-07-30

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