Investigating the effect of ultraviolet aging on the healing capacity of bitumen containing taconite tailings

Aging of plastics occurs in use, it makes the performance degrade, and losing use value finally. In order to compare ultraviolet aging with thermal aging, we carry out a pilot study on the performance changes of PE film. The results demonstrated that the tensile property became lower under two aging methods, the tensile property during the thermal aging decreased by 6.07% but it was 15.08% in the ultraviolet aging at 120h, obviously the effects of the ultraviolet aging on the tensile strength were more significant, it declined faster. The air permeability curves were on the rise under the two aging methods, the results demonstrated that the effect of the ultraviolet aging on the air permeability rose slightly more than the thermal aging. The moisture permeability curves decreased firstly and then increased, but the values of the ultraviolet aging were higher.

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Influence of surface modification on physical and ultraviolet aging resistance of bitumen containing inorganic nanoparticles

Construction and Building Materials ◽

10.1016/j.conbuildmat.2015.08.138 ◽

2015 ◽

Vol 98 ◽

pp. 735-740 ◽

Cited By ~ 54

Author(s):

Henglong Zhang ◽

Chongzheng Zhu ◽

Jianying Yu ◽

Caijun Shi ◽

Dongmei Zhang

Keyword(s):

Surface Modification ◽

Inorganic Nanoparticles ◽

Aging Resistance ◽

Ultraviolet Aging

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Accelerated ultraviolet aging study of the Vectran fiber

Journal of Applied Polymer Science ◽

10.1002/app.35132 ◽

2011 ◽

Vol 124 (4) ◽

pp. 3286-3292 ◽

Cited By ~ 7

Author(s):

Yuyan Liu ◽

Chunhua Zhang ◽

Yuting Liu ◽

Huifeng Tan ◽

Changguo Wang

Keyword(s):

Aging Study ◽

Ultraviolet Aging

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Effect of Different Inorganic Nanoparticles on Physical and Ultraviolet Aging Properties of Bitumen

Journal of Materials in Civil Engineering ◽

10.1061/(asce)mt.1943-5533.0001321 ◽

2015 ◽

Vol 27 (12) ◽

pp. 04015049 ◽

Cited By ~ 15

Author(s):

Henglong Zhang ◽

Dongmei Zhang

Keyword(s):

Inorganic Nanoparticles ◽

Aging Properties ◽

Ultraviolet Aging

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Investigation of ultraviolet aging resistance of bitumen modified by layered double hydroxides with different particle sizes

Construction and Building Materials ◽

10.1016/j.conbuildmat.2018.11.125 ◽

2019 ◽

Vol 196 ◽

pp. 166-174 ◽

Cited By ~ 4

Author(s):

Zhilong Cao ◽

Meizhu Chen ◽

Bianyang He ◽

Xiaobin Han ◽

Jianying Yu ◽

...

Keyword(s):

Layered Double Hydroxides ◽

Particle Sizes ◽

Aging Resistance ◽

Double Hydroxides ◽

Ultraviolet Aging

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Continuous Blown Film Preparation of High Starch Content Composite Films with High Ultraviolet Aging Resistance and Excellent Mechanical Properties

Polymers ◽

10.3390/polym13213813 ◽

2021 ◽

Vol 13 (21) ◽

pp. 3813

Author(s):

Bowen Lin ◽

Chengqiang Li ◽

Fangping Chen ◽

Changsheng Liu

Keyword(s):

Mechanical Properties ◽

Lignin Content ◽

Starch Content ◽

Composite Films ◽

Oh Groups ◽

Longitudinal Tensile Strength ◽

High Starch Content ◽

Aging Resistance ◽

High Starch ◽

Ultraviolet Aging

Starch/PBAT blown films with high ultraviolet aging resistance and excellent mechanical properties were prepared by introducing lignin with polyurethane prepolymer (PUP) as a starch modifier and physical compatibilizer and 4,4′–methylene diphenyl diisocyanate (MDI) as a crosslinker. Starch was modified by reacting the NCO groups of the PUP with the OH groups of the starch to form a carbamate bond. The mechanical properties, hydrophobic properties, ultraviolet barrier, ultraviolet aging properties and microscopic morphology of starch/PBAT films with different contents of lignin were investigated. The results showed that the starch/PBAT films were blown continuously. The addition of lignin did not decrease the mechanical properties. On the contrary, the film with 1% lignin possessed the excellent mechanical properties with longitudinal tensile strength of 15.87 MPa and the elongation at a break of 602.21%. In addition, the higher the lignin content, the better the UV blocking effect. The introduction of lignin did not affect the crystalline properties but improved the hydrophilic properties and sealing strength of the high starch content composite films.

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