Physical and Mechanical Properties of Inorganic Particles Filled Individual Bamboo Fibers

2012 ◽  
Vol 476-478 ◽  
pp. 1930-1933 ◽  
Author(s):  
Jie Gao ◽  
Ge Wang ◽  
Hai Tao Cheng ◽  
Sheldon Q. Shi
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Tensile Properties ◽  
Physical And Mechanical Properties ◽  
Contact Angles ◽  
Angle Measurement ◽  
Inorganic Nanoparticles ◽  
Submicron Particles ◽  
Inorganic Particles ◽  
Bamboo Fibers

The objectives of the current study involve in situ depositing treatments of calcium carbonate particles onto bamboo fibers through the ionic reaction of sodium carbonate and calcium chloride aqueous solution at varied bath temperatures, and their impacts on surface features, wettability and tensile properties of single bamboo fibers. Field emission scanning electron microscopy was employed to characterize surface morphology of fibers. The wettability of bamboo fibers was evaluated by optical contact angle measurement instrument. The results show that nanoparticles and submicron particles grew into the wrinkles and micropores of fibers, the size, morphology and adsorbance of which were distinctively varied at different bath temperatures. The highest calcium carbonate adsorbance (2.34%) was obtained at 25°C. Besides, the mean values of contact angles increased and the variations within group were reduced as the loading percentage of particles rose, which might be due to reduced hydrophilic groups after coatings of calcium carbonate particles. The treatments were approved to enhance tensile properties of single bamboo fibers, comparing to the average tensile strengh and modulus of elasticity of the untreated, those of the treated bamboo fibers with the biggest calcium carbonate loading were higher by 30.50% and 32.71% respectively. It’s proved that the precipitating treatment is a useful method to densify and hydrophobize bamboo fibers and smooth out cell wall defects. What’s more, it provide explanations for improvements of physical and mechanical properties of paper and fiber reinforced plastic composites filled with inorganic nanoparticles.

ANSONIA C14500

Alloy Digest ◽  
2008 ◽  
Vol 57 (3) ◽  
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Pure Copper ◽  
Physical And Mechanical Properties ◽  
Heat Treating

Abstract Ansonia alloy C14500 has unique fabrication properties while maintaining both physical and mechanical properties close to pure copper. The addition of Tellurium makes the alloy free machining. This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength. It also includes information on forming, heat treating, machining, and joining. Filing Code: CU-752. Producer or source: Ansonia Copper & Brass Inc.

Submicron inorganic particles as an additional filler in hybrid epoxy matrix composites reinforced with glass fibres

2019 ◽  
Vol 28 (7) ◽  
pp. 484-491
Author(s):  
Marcin Włoch ◽  
Filip Bagiński ◽  
Piotr Koziński ◽  
Janusz Datta
Keyword(s):  
Mechanical Properties ◽  
Metal Oxide ◽  
Epoxy Resin ◽  
Epoxy Matrix ◽  
Hybrid Composites ◽  
Flexural Modulus ◽  
Submicron Particles ◽  
Inorganic Particles ◽  
Glass Composites ◽  
Glass Fibres

In this study, the effect of selected submicron metal oxide (zinc oxide, titanium oxide) or non-metal oxide (silicon dioxide) particles on mechanical and thermo-mechanical properties of epoxy/glass composites was investigated. The applied epoxy resin was a diglycidyl ether of bisphenol-A cured with triethylenetetramine. As a reinforcement twill weave E-glass fabric was used. Hybrid composites (contained particulate and fibrous filler) were fabricated by using the hand lay-up method and the average content of glass fibres was 39–41 wt%. Flexural properties, thermo-mechanical properties, abrasion resistance and hardness were determined for each group of the prepared hybrid epoxy/glass composites. The obtained results were compared with control samples (without submicron particles). Investigations showed that the addition of 2 wt% SiO2, 4 wt% TiO2 or 4 wt% ZnO to epoxy resin improved the flexural strength and the flexural modulus of composites. Dynamic mechanical analysis showed that the addition of the mentioned particles enhanced storage and loss modulus. It can be attributed to the good dispersion and good interaction between submicron-mentioned particles and the epoxy matrix.

Physical and Mechanical Properties of Epoxy-Nanoparticulate Composite Adhesive

2012 ◽  
Vol 585 ◽  
pp. 297-300 ◽  
Author(s):  
Prakriti Kumar Ghosh ◽  
Manjeet Singh Goyat ◽  
Deepak Mishra ◽  
Rishabh Nagori
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Glass Transition ◽  
Tensile Properties ◽  
Physical And Mechanical Properties ◽  
Epoxy Adhesive ◽  
Al2o3 Nanoparticles ◽  
Thermal And Mechanical Properties ◽  
Vibration Process ◽  
Dispersion Of Nanoparticles

The effect of type of nanoparticles on morphology, thermal and mechanical properties of epoxy-nanoparticulate composite adhesive produced via ultrasonic vibration process has been investigated. The morphology, thermal and mechanical properties of epoxy-nanoparticulate composite adhesive was measured with FESEM/AFM, DTA/TGA, and Hounsfield respectively. The FESEM/AFM images of the epoxy-nanoparticulate composite adhesive reveals significantly fine dispersion of nanoparticles. The incorporation TiO2 nanoparticles in epoxy adhesive results in improved glass transition temperature (Tg), thermal stability and tensile properties of the nanocomposite. But, the incorporation of comparatively finer size Al2O3 nanoparticles leads to decrease in the Tg, thermal stability and tensile properties of the nanocomposite.

Tensile properties prediction of natural fibre composites using rule of mixtures: A review

2018 ◽  
Vol 38 (5) ◽  
pp. 211-248 ◽  
Author(s):  
Mun Wai Tham ◽  
MR Nurul Fazita ◽  
HPS Abdul Khalil ◽  
Nurul Zuhairah Mahmud Zuhudi ◽  
Mariatti Jaafar ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Polymer Composites ◽  
Mixture Models ◽  
Prediction Accuracy ◽  
Physical And Mechanical Properties ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Fibre Composites ◽  
Experimental Values

Rule of mixture models are usually used in the tensile properties prediction of polymer composites reinforced with synthetic fibres. They are less utilized for natural fibre/polymer composites due to natural fibres physical and mechanical properties variability which reduces rule of mixture model's prediction values accuracy compared to the experimental values. This had led to studies conducted by various researchers to improve the existing rule of mixture models to give a better reflection of the true natural fibres properties and enhance the rule of mixture models prediction accuracy. In this paper, rule of mixture model's utilization includes the existing rule of mixture models as well as proposed rule of mixture models which have one or more factors incorporated into existing rule of mixture models for natural fibre/polymer composites tensile properties prediction are reviewed.

scholarly journals Silanized Silica-Encapsulated Calcium Carbonate@Natural Rubber Composites Prepared by One-Pot Reaction

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2668
Author(s):  
Yao Yu ◽  
Junyi Zhang ◽  
Hongzhen Wang ◽  
Zhenxiang Xin
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Natural Rubber ◽  
Physical And Mechanical Properties ◽  
Dynamic Mechanical Properties ◽  
One Pot ◽  
Natural Rubber Composites ◽  
Chemical Combination ◽  
Silanized Silica ◽  
Effect Of Surface

This article demonstrates the one-pot reaction, an efficient and environmentally friendly organic synthesis method, utilized to prepare the silanized silica-encapsulated calcium carbonate@natural rubber composites (SSC@NR), following first mixing the calcium carbonate (CaCO3) solution, silica (SiO2) sol solution and a small amount of Si-69 solution, to modify the surface of CaCO3 particles, and then wet mixing with natural rubber latex. The obtained silanized silica-encapsulated calcium carbonate (SSC) particles were tested by TGA, FTIR and XRD, to substantiate the effect of surface modification. Moreover, the effects of the amount of SSC on the Mooney viscosity, curing characteristics, physical and mechanical properties and dynamic mechanical properties of the SSC@NR were investigated. The results show that the surface of modified CaCO3 is effectively coated with SiO2 particles by means of physical and chemical combination, to achieve the effect of surface coating. When the optimum amount of SSC filler is 40 phr, the SSC can form better physical adsorption and chemical combination with the NR molecular chains and can be evenly dispersed in the rubber matrix, resulting in the conspicuous improvement of physical and mechanical properties, such as the tensile strength, tear strength, elongation at break and abrasion resistance. Meanwhile, the compound with SSC has preferable processability and dynamic mechanical properties.

Some Physical and Mechanical Properties of Pbo Fiber

1988 ◽  
Vol 134 ◽  
Author(s):  
J. Im ◽  
P.A. Percha ◽  
D.S. Yeakle
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Thermal Expansion ◽  
Tensile Properties ◽  
Coefficient Of Thermal Expansion ◽  
Physical And Mechanical Properties ◽  
Gage Length ◽  
Dead Load ◽  
Fiber Tension ◽  
Pbo Fiber

ABSTRACTThe tensile properties of poly (paraphenylene benzobisoxazole) or PBO fiber strands were studied using two variables: gage length and the number of twists per inch. The gage length was varied from 1 to 10 inches with 2 twists of the fiber per inch. The effect of the number of twists per inch was studied by varying the number of twists from zero to 10 along a 5-inch gage length. The trends of tensile strength and modulus due to these variables were established and appropriate explanations of these behaviors are provided.The coefficient of thermal expansion (CTE) was studied on bare strands of PBO and Kevlar 49 (a product of Du Pont de Nemours & Co.) fibers, using a Du Pont 943 Thermomechanical Analyzer (TMA) equipped with a film and fiber tension assembly. The axial CTE of both fibers exhibited a dependence on the small dead load employed to keep the fibers straight. Kevlar 49 fiber, when wet, attained a much less negative value of CTE than when dry. In contrast, PBO fiber absorbed very little moisture, and the CTE remained unchanged.

scholarly journals A New Composite Restorative Based on a Hydrophobic Matrix

1979 ◽  
Vol 58 (10) ◽  
pp. 1981-1986 ◽  
Author(s):  
W.H. Douglas ◽  
R.G. Craig ◽  
C.J. Chen
Keyword(s):  
Mechanical Properties ◽  
Blue Light ◽  
Water Sorption ◽  
Physical And Mechanical Properties ◽  
Hydrophobic Surface ◽  
Contact Angles ◽  
Alkyl Methacrylate ◽  
Oral Fluids ◽  
Hydrophobic Matrix ◽  
Highly Hydrophobic

A hydrophobic restorative composite based on a fluorocarbon analog of an alkyl methacrylate and a bisphenol adduct was formulated into a one-paste system, which polymerized in the presence of blue light. Physical, mechanical, and water-related properties were determined. High contact angles and low water sorption were shown by the experimental composite. Capillary penetration of oral fluids around restorations, therefore, could be prevented in the presence of this highly hydrophobic surface. The physical and mechanical properties of the experimental composite were either comparable to or somewhat less favorable than commercial Bis-GMA composites.

scholarly journals Hydration affects the physical and mechanical properties of baleen tissue

2016 ◽  
Vol 3 (10) ◽  
pp. 160591 ◽  
Author(s):  
Alexander J. Werth ◽  
Robert W. Harriss ◽  
Michael V. Rosario ◽  
J. Craig George ◽  
Todd L. Sformo
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Contact Angles ◽  
Eubalaena Glacialis ◽  
Bending Tests ◽  
Bowhead Whales ◽  
North Atlantic Right Whales ◽  
Hydrophobic Pollutants ◽  
And Function ◽  
Alpha Keratin

Baleen, an anisotropic oral filtering tissue found only in the mouth of mysticete whales and made solely of alpha-keratin, exhibits markedly differing physical and mechanical properties between dried or (as in life) hydrated states. On average baleen is 32.35% water by weight in North Atlantic right whales ( Eubalaena glacialis ) and 34.37% in bowhead whales ( Balaena mysticetus ). Baleen's wettability measured by water droplet contact angles shows that dried baleen is hydrophobic whereas hydrated baleen is highly hydrophilic. Three-point flexural bending tests of mechanical strength reveal that baleen is strong yet ductile. Dried baleen is brittle and shatters at about 20–30 N mm −2 but hydrated baleen is less stiff; it bends with little force and absorbed water is squeezed out when force is applied. Maximum recorded stress was 4× higher in dried (mean 14.29 N mm −2 ) versus hydrated (mean 3.69 N mm −2 ) baleen, and the flexural stiffness was >10× higher in dried (mean 633N mm −2 ) versus hydrated (mean 58 N mm −2 ) baleen. In addition to documenting hydration's powerful effects on baleen, this study indicates that baleen is far more pliant and malleable than commonly supposed, with implications for studies of baleen's structure and function as well as its susceptibility to oil or other hydrophobic pollutants.

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