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Effect of hyperbranched poly(trimellitic glyceride)/oxidized starch composite sizing agent on the adhesion of polyester yarns |
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| Authors: | Kang Zhang Haishun Ouyang Yixuan He Xinquan Wang Yi Lin Puxin Zhu Fei Cheng Kewen Tang |
| Affiliation: | 1. College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, China
College of Biomass Science and Engineering, Sichuan University, Chengdu, China Contribution: Funding acquisition (equal), Methodology (lead), Writing - original draft (lead);2. College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, China Contribution: Formal analysis (lead), ?Investigation (lead), Methodology (equal);3. College of Mechanical Engineering, Hunan Institute of Science and Technology, Yueyang, China Contribution: Conceptualization (supporting), Data curation (equal), Formal analysis (lead), ?Investigation (equal);4. College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, China Contribution: Formal analysis (equal), Software (lead), Visualization (equal);5. College of Biomass Science and Engineering, Sichuan University, Chengdu, China Contribution: Methodology (equal), Resources (lead), Software (lead), Visualization (supporting);6. College of Biomass Science and Engineering, Sichuan University, Chengdu, China Contribution: Resources (equal), Visualization (lead), Writing - review & editing (supporting);7. College of Biomass Science and Engineering, Sichuan University, Chengdu, China;8. College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, China |
| Abstract: | Oxidized starch is an environmentally friendly sizing agent, but lacks adhesion to polyester yarns. In this study, hyperbranched poly(trimellitic glyceride)/oxidized starch (PTG/OS) as the composite sizing agent is used for sizing polyester yarns. The properties of sizing film, sizing paste, and sizing yarns are studied. When PTG content ranges from 2 to 10 wt%, tensile strength of PTGs/OS films are higher than that of oxidized starch film, and increase as molecular weight of PTG increase. Tensile strength of OS, PTG-1/OS, PTG-2/OS, and PTG-3/OS films with 10 wt% PTG is 20.5, 22.4, 23.8, and 27.6 MPa, respectively. Apparent viscosity and viscosity stability of PTG/OS paste increases with the increase of PTG molecular weight. Breaking force, elongation at break and work-to-break of sizing polyester yarns by PTG/OS increase with the increase of PTG content in composite sizing agents, and the improvement on the tensile properties of sizing polyester yarns by PTG/OS becomes better with increase of PTG molecular weight. It is attributed to the stronger affinity among oxidized starch, PTG and polyester, which is verified by FT-IR, XPS, and SEM. Oxidized starch blended hyperbranched poly(trimellitic glyceride) has the potential application for sizing polyester yarns in weaving process. |
| Keywords: | affinity hyperbranched polyester oxidized starch polyester yarns sizing |