scholarly journals Surfactant Chain Length and Tensile Properties of Calcium Carbonate-Polyethylene Composites

2007 ◽  
Vol 208 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Maged A. Osman ◽  
Ayman Atallah
Keyword(s):  
Calcium Carbonate ◽  
Tensile Properties ◽  
Chain Length ◽  
Polyethylene Composites

scholarly journals Tensile Properties of Polypropylene Filled with Nanoscale Calcium Carbonate Particles

2002 ◽  
Vol 11 (6) ◽  
pp. 096369350201100 ◽  
Author(s):  
Ming Qiu Zhang ◽  
Min Zhi Rong ◽  
Shun Long Pan ◽  
Klaus Friedrich
Keyword(s):  
Calcium Carbonate ◽  
Tensile Properties ◽  
Introduced Species ◽  
Tensile Testing ◽  
Filler Content ◽  
Polypropylene Composites ◽  
Matrix Polymer ◽  
Modification Effect ◽  
The Matrix ◽  
Positive Effect

To bring the positive effect of nanoscale calcium carbonate into play, macromolecular chains were introduced onto the particles by irradiation grafting polymerisation so that the hydrophobicity of the particles was increased and the loosen agglomerates became stronger. Tensile testing results demonstrated that polypropylene composites incorporated with the grafted nano-CaCO3 particles exhibited improved stiffness, strength and toughness at low filler content when proper grafting polymers are introduced. Species of grafting polymers adhered to the nanoparticles is an important factor affecting the modification effect of the matrix polymer. Therefore, composites performance can be purposely tailored accordingly.

Tensile Properties of Polymerization-Filled Kevlar Pulp/Polyethylene Composites

2004 ◽  
Vol 12 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Yaolin Zhang ◽  
Denis Rodrigue ◽  
Abdellatif Aït-Kadi
Keyword(s):  
Tensile Properties ◽  
Polyethylene Composites

Influence of excessive filler coating on the tensile properties of LDPE–calcium carbonate composites

Polymer ◽  
2004 ◽  
Vol 45 (4) ◽  
pp. 1177-1183 ◽  
Author(s):  
Maged A. Osman ◽  
Ayman Atallah ◽  
Ulrich W. Suter
Keyword(s):  
Calcium Carbonate ◽  
Tensile Properties

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.

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