Effect of Water Temperature on Interfacial Shear Strength of Resin Particles Added CFRTP

Katogi, Hideaki; Takemura, Kenichi; Mochizuki, Mao

doi:10.4028/www.scientific.net/kem.774.7

Cited by 2 publications

(4 citation statements)

References 13 publications

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“…It is possible that water penetration into the interface between fiber and polymer matrix occurred easily because of the water temperature [13]. The polymer matrix has a hydrophilic segment.…”

Section: Interfacial Shear Strength Of Cfrpp Using Uneven Carbon Fibementioning

confidence: 99%

“…The surface roughness of carbon fiber was increased by resin particle addition. The interfacial shear strength of CFRPP using uneven carbon fiber after immersion until 28 days might be increased because of anchor effect [13] and increase of surface area of carbon fiber [14] by resin particle addition.…”

Section: Hot-wet Environment Effects On the Cfrpp Fracture Surface Usmentioning

confidence: 99%

“…Carbon fiberreinforced polypropylene (CFRPP) is used as a structural material for microelectric vehicles because carbon fiber has high specific strength and modulus. Therefore, many researchers have reported on CFRPP mechanical properties and molding methods [5]- [13]. Nevertheless, no report of the literature describes a study of CFRPP mechanical properties under temperature and water environments.…”

Section: Introductionmentioning

confidence: 99%

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Interfacial Shear Strength of Carbon Fiber-Reinforced Polypropylene Using Uneven Carbon Fiber Under a Hot–wet Environment for Long-Term Safety of Vehicles

Takemura

Mochizuki

Katogi

2019

Materials and Contact Characterisation IX

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We have previously reported on the improvement of the interfacial shear strength of carbon fiberreinforced polypropylene (CFRPP) using carbon fiber with added resin particles (uneven carbon fiber). This study was conducted to assess the interfacial shear strength of CFRPP with uneven carbon fiber under a hot-wet environment for long-term safety of vehicles. The matrix was maleic anhydride grafted polypropylene. The matrix concentration was 10%. Reinforcement was done with uneven carbon fiber. Water absorption tests of CFRPP were conducted using uneven carbon fiber. The range of water temperature was from room temperature (RT) to 80°C. The maximum immersion time was 112 days. After water absorption testing, a micro-debonding test of CFRPP using uneven carbon fiber was conducted at RT. Fracture surfaces of carbon fibers were observed using scanning electron microscopy (SEM). Results show that when the maximum immersion time was 112 days, interfacial shear strength of water-immersed CFRPPs using uneven carbon fiber at RT, 50°C and 80°C decreased by 54%, 94% and 96% respectively, compared with that of non-immersed CFRPP using uneven carbon fiber. However, interfacial shear strengths of water-immersed CFRPPs using even and uneven carbon fiber under 50°C and 80°C showed almost no change at 112 days. SEM observations revealed large resin particles on the fracture surface of carbon fiber at temperatures higher than 50°C. Large resin particles and matrix on fracture surface of carbon fiber were found at 80°C. The viscoelasticity and interfacial adhesion property of water absorbing polymer matrix probably decreased when CFRPP using uneven carbon fiber was immersed at temperatures higher than 50°C. Therefore, the interfacial shear strength of CFRPP using uneven carbon fiber was strongly affected because of water absorption by polymer matrix and water penetration into interface between fiber and polymer matrix under a hot-wet environment.

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Section: Interfacial Shear Strength Of Cfrpp Using Uneven Carbon Fibementioning

confidence: 99%

Section: Hot-wet Environment Effects On the Cfrpp Fracture Surface Usmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interfacial Shear Strength of Carbon Fiber-Reinforced Polypropylene Using Uneven Carbon Fiber Under a Hot–wet Environment for Long-Term Safety of Vehicles

Takemura

Mochizuki

Katogi

2019

Materials and Contact Characterisation IX

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“…Recently, the green composite material using natural fiber and biopolymer has been focused for sustainable development goals of many products. There are many papers about mechanical properties of green composite materials [12][13][14]. But, the adhesion between poly(lactic acid) and cellulose based natural fiber in green composite material is low.…”

Section: Introductionmentioning

confidence: 99%

Effect of Addition Amount of Surface Treated Wood Flour on Moisture Absorption Property of Green Composite

Katogi¹

2023

MSF

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This study was examined the moisture absorption property of green composite using surface treated wood flour for sustainable development goals (SDGs) of product. Constituent materials of green composite were Japanese cedar flour and poly (lactic acid). The lumber of Japanese cedar was cut by hand saw for wood flour. The surface treatment of wood flour was conducted by stone mill. The number of cycle was 400 cycles. The maximum addition amount of wood flour was 20wt%. Molding method of green composite was vacuum compressive method. The moisture absorption test of green composite was conducted by using KNO3 solution. The maximum test time was four weeks (672 hours). The environmental temperature was room temperature. The humidity was 93%. As a result, following conclusions were obtained. In case of test time 672 hours, coefficient of moisture absorptions of green composites using non and surface treated wood flour 1.0wt.% were similar to that of poly (lactic acid). But, the coefficient of moisture absorption of green composite using surface treated Japanese cedar flour 20wt.% was larger than that of green composite using non-treated Japanese cedar flour 20wt.%. The water penetration probably occurred at interface between Japanese cedar flour and matrix. Therefore, the moisture absorption property of green composite using surface treated Japanese cedar flour 20wt% was affected by water penetration at interface between Japanese cedar flour and matrix.

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Effect of Water Temperature on Interfacial Shear Strength of Resin Particles Added CFRTP

Cited by 2 publications

References 13 publications

Interfacial Shear Strength of Carbon Fiber-Reinforced Polypropylene Using Uneven Carbon Fiber Under a Hot–wet Environment for Long-Term Safety of Vehicles

Interfacial Shear Strength of Carbon Fiber-Reinforced Polypropylene Using Uneven Carbon Fiber Under a Hot–wet Environment for Long-Term Safety of Vehicles

Effect of Addition Amount of Surface Treated Wood Flour on Moisture Absorption Property of Green Composite

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