Novel attitude determination method by integration of electronic level meter, INS, and low-cost turntable for level attitude evaluation and calibration of INS

Yang, Anlan; Hu, Peida; LIU, Genming; ZHANG, Rong; Wu, Qiuping; ZHOU, Ruikun

doi:10.1016/j.cja.2023.01.003

Cited by 1 publication

(1 citation statement)

References 39 publications

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“…Polyurethane, an important polymer material, has a wide range of applications due to its excellent controllability. [1][2][3][4] As a polyurethane product for a wide range of applications, waterborne polyurethane has the advantages of excellent stability, great flexibility, and environmental friendliness, which is applied as dye dispersant, [5] polymer dye, [6] printing paste [7] and other functional additives [4,[8][9][10] in the textile industry. Owing to reducing the consumption of petrochemical resources in polyurethane production and responding to demands for sustainable development, more and more scholars are committed to researching the biomass-based polyurethane materials prepared by using biomass materials instead of some petrochemical raw materials.…”

Section: Introductionmentioning

confidence: 99%

Chitosan Oligosaccharide Based Waterborne Polyurethane with UV Resistance and Oxidation Resistance for Functional Fabric

Chen,

Ye,

Liu

et al. 2023

Macro Chemistry & Physics

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Chitosan oligosaccharide (COS) is an abundant polysaccharide in nature, which has various functions such as antioxidant and antibacterial. The possibilities of using COS can be extended by applying it to polyurethane materials. Herein, Chitosan oligosaccharide‐based waterborne polyurethane (CWPU) with intramolecular crosslinking network is prepared by using COS as chain extender. The mechanical properties of CWPU are improved, with tensile strength and elongation at break reaching 14.83 MPa and 449.63%, respectively. The DPPH free radical scavenging rate of CWPU increases from 8.43% to 70.98%, indicating that CWPU has favorable antioxidant performance. The tensile strength of the CWPU‐treated fabrics obtained by the padding method improve from 542.77 to 605.33N and there is no significant change in the whiteness of the fabric. Furthermore, the CWPU‐treated fabrics, with the UV protection factor of 30.39 and the UVA transmittance below 3%, can be used as UV‐protective fabrics. This work introduces COS into the molecular structure of polyurethanes to obtain functional PUs, expanding the application of COS in polyurethanes.

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