Analysis of the Creep Behavior of Polypropylene and Glass Fiber Reinforced Polypropylene Composites

In this paper tensile and creep tests were performed on polypropylene (PP) and its glass fiber reinforced composites. The tensile tests were carried out on 6 different glass fiber content reinforced PP composites (0, 5, 10, 20, 30 and 40%) while the creep tests were performed on the unreinforced and 30% and 40% fiber reinforced ones of industrial importance. 50 N/s constant force rate was used until the specimen failed (tensile test) or the preset load level was reached (creep test). The applied load levels for the creep experiments were determined as given ratios of the average breaking force. The tensile breaking strain and tensile strength versus fiber content relationship were analyzed and described by empirical formulas based on the correction and averaging procedure developed.

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Crystallization and Mechanical Properties of Glass Fiber Reinforced Polypropylene Composites Molded by Rapid Heat Cycle Molding

Fibers and Polymers ◽

10.1007/s12221-020-1284-8 ◽

2020 ◽

Vol 21 (12) ◽

pp. 2915-2926

Author(s):

Aimin Zhang ◽

Guoqun Zhao ◽

Jialong Chai ◽

Junji Hou ◽

Chunxia Yang ◽

...

Keyword(s):

Mechanical Properties ◽

Glass Fiber ◽

Fiber Reinforced ◽

Heat Cycle ◽

Polypropylene Composites ◽

Glass Fiber Reinforced

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Dependence of Coefficient of volumetric thermal expansion (CVTE) of glass fiber reinforced (GFR) polymers on the glass fiber content

Polymer Bulletin ◽

10.1007/s00289-007-0819-0 ◽

2007 ◽

Vol 59 (6) ◽

pp. 813-824 ◽

Cited By ~ 6

Author(s):

V. La Carrubba ◽

M. Bulters ◽

W. Zoetelief

Keyword(s):

Thermal Expansion ◽

Glass Fiber ◽

Fiber Content ◽

Fiber Reinforced ◽

Volumetric Thermal Expansion ◽

Glass Fiber Reinforced

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EFFECTS OF PRESS PRESSURE ON THE MECHANICAL PROPERTIES OF RIB ROOT FOR GLASS FIBER REINFORCED POLYPROPYLENE COMPOSITES, MOLDED BY PRESS AND INJECTION HYBRID MOLDING

Materials and Contact Characterisation VIII ◽

10.2495/mc170331 ◽

2017 ◽

Cited By ~ 2

Author(s):

KAZUTO TANAKA ◽

KAITO KARASUNO ◽

NOGUCHI RYUICHI ◽

TEUTA KATAYAMA

Keyword(s):

Mechanical Properties ◽

Glass Fiber ◽

Fiber Reinforced ◽

Polypropylene Composites ◽

Glass Fiber Reinforced

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Thermal Shock Effect of Nano-TiO2 Enhanced Glass Fiber Reinforced Polymeric Composites: An Assessment on Tensile and Thermal Behavior

Materials Science Forum ◽

10.4028/www.scientific.net/msf.978.277 ◽

2020 ◽

Vol 978 ◽

pp. 277-283

Author(s):

Kishore Kumar Mahato ◽

Krishna Chaitanya Nuli ◽

Krishna Dutta ◽

Rajesh Kumar Prusty ◽

Bankim Chandra Ray

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Glass Fiber ◽

Thermal Shock ◽

Viscoelastic Behavior ◽

Stress Transfer ◽

Tensile Tests ◽

Fiber Reinforced ◽

Glass Fiber Reinforced ◽

Service Period

Fiber reinforced polymeric (FRP) composite materials are currently used in numerous structural and materials related applications. But, during their in-service period these composites were exposed to different changing environmental conditions. Present investigation is planned to explore the effect of thermal shock exposure on the mechanical properties of nanoTiO2 enhanced glass fiber reinforced polymeric (GFRP) composites. The samples were conditioned at +70°C temperature for 36 h followed by further conditioning at – 60°C temperature for the similar interval of time. In order to estimate the thermal shock influence on the mechanical properties, tensile tests of the conditioned samples were carried out at 1 mm/min loading rate. The polymer phase i.e. epoxy was modified with different nanoTiO2 content (i.e. 0.1, 0.3 and 0.5 wt. %). The tensile strength of 0.1 wt.% nanoTiO2 GFRP filled composites exhibited higher ultimate tensile strength (UTS) among all other composites. The possible reason may be attributed to the good dispersion of nanoparticles in polymer matrix corresponds to proper stress transfer during thermal shock conditioning. In order to access the variations in the viscoelastic behavior and glass transition temperature due to the addition of nanoTiO2 in GFRP composite and also due to the thermal shock conditioning, dynamic mechanical thermal analysis (DMTA) measurements were carried out. Different modes of failures and strengthening morphology in the composites were analyzed under scanning electron microscope (SEM).

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