Bio polyetherurethane composites with high content of natural ingredients: hydroxylated soybean oil based polyol, bio glycol and microcrystalline cellulose

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• 作者：Ewa Głowińska ; Janusz Datta
• 关键词：Bio based 1 ; 3 ; propanediol ; Bio glycol ; Microcrystalline cellulose ; Modified soybean oil ; Bio composites ; Bio polyurethane
• 刊名：Cellulose
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：23
• 期：1
• 页码：581-592
• 全文大小：1,014 KB
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• 作者单位：Ewa Głowińska (1)
  Janusz Datta (1)
  
  1. Gdansk University of Technology, G. Narutowicza Street 11/12, 80-233, Gdańsk, Poland
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Bioorganic Chemistry
  Physical Chemistry
  Organic Chemistry
  Polymer Sciences
  
• 出版者：Springer Netherlands
• ISSN：1572-882X

文摘

In our study, we focused on obtaining bio-polyurethane composites using bio-components such as bio glycol, modified natural oil-based polyol, and microcrystalline cellulose (MCC). The pre-polymer method was used to prepare the bio polyurethane matrix. Prepolymer was synthesized using 4,4′-diphenylmethane diisocyanate and a polyol mixture containing 50 wt% of commercial polyether and 50 wt% of hydroxylated soybean oil (H3). Bio based 1,3-propanediol (1,3bioPDO) was used as the prepolymer chain extender. The composites were produced by dispersing 5, 10, 15 and 20 wt% of MCC in the bio polyurethane matrix. The polymerization was catalyzed with 1,4-diazabicyclo[2.2.2]octane. The influence of the added MCC powder on the structure and thermal properties of the obtained composites was investigated. The FTIR analysis demonstrated that the MCC admixture affected the absorbance of C–O–C and C=O groups and the phase separation index of the obtained bio-polyurethanes composites. The results of mechanical tests and scanning microscopy images indicated good interfacial adhesion between the partially bio-based matrix of the composite and bio-filler. The results of thermomechanical analysis showed that the application of MCC as a filler has a positive effect on the storage and loss modulus of the composites. Keywords Bio based 1,3-propanediol Bio glycol Microcrystalline cellulose Modified soybean oil Bio composites Bio polyurethane