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Higher tear strength of EPDM/SBR/TPR composites foam based on double foaming system
, 2020Polymeric foam with lightweight and higher impact strength has been used in many fields due to cost reduction and higher toughness. However, it is often difficult to improve their mechanical property especially tear strength.
Fuquan Deng, Hua Jin, Li Zhang, Yuxin He
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Journal of Materials Science, 1984
The fracture energy of moulded sheets of polyethylene has been found to depend strongly upon the thickness of the sheet, increasing linearly over the range 0.05 to 1.0 mm. This variation is attributed to a dependence of the volume of the plastic zone at the crack tip upont2, wheret is the torn thickness.
D. -S. Chiu, A. N. Gent, J. R. White
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The fracture energy of moulded sheets of polyethylene has been found to depend strongly upon the thickness of the sheet, increasing linearly over the range 0.05 to 1.0 mm. This variation is attributed to a dependence of the volume of the plastic zone at the crack tip upont2, wheret is the torn thickness.
D. -S. Chiu, A. N. Gent, J. R. White
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The Tear Strength of Vulcanizates
Rubber Chemistry and Technology, 1960Abstract 1) The force acting upon the jaws of the tear testing machine is always measured in tear strength tests and its value serves as a criterion of the tear resistance. This force, measured at the instant of completion of the tear, is made up of the force necessary for tear propagation in the notch together with the force needed to produce ...
Primus Kainradl, Franz Handler
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Tear strength and tensile strength of model filled elastomers
Journal of Polymer Science: Polymer Physics Edition, 1980AbstractMeasurements have been made of the tear strength, tensile strength, and energy dissipated during stretching for model filled elastomers consisting of polybutadiene with glass beads incorporated. The glass beads were pretreated with various silanes, some of which could, in principle, form covalent bonds with the polybutadiene matrix during free ...
P. Dreyfuss, A. N. Gent, J. R. Williams
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Tear strength of elastomeric impression materials
The Journal of Prosthetic Dentistry, 19781. Under simulated clinical conditions the maximum tear strength of those materials tested was reached in 10 to 15 minutes. 2. The polysulfide materials showed three to six times the tear strength of the silicones. 3. The polyether material displayed a tear resistance slightly higher than that of the silicones but one third to one fifth as high as that
T W, Herfort +3 more
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Tear Strength of Non-aqueous Impression Materials
Journal of Dental Research, 1984Examples from each of the four major groups of dental impression materials (polysulfides, polyethers, condensation polysiloxanes, and addition polysiloxanes) were subjected to a trouser-leg tear test. Tear energies were determined, and materials were ranked with respect to each other.
S C, Keck, W H, Douglas
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The Tearing Strength of Glutaraldehyde Fixed Bovine Pericardium
Biomaterials, Artificial Cells and Artificial Organs, 1989Destructive uniaxial load tests were performed on bovine pericardium that had been chemically modified by glutaraldehyde fixation. To investigate the tearing strength of this tissue, an artificial tear, in the form of a 2mm notch, was introduced into the test specimens. Specimens without a notch, harvested from the same sites in the pericardial sac but
E A, Trowbridge, C E, Crofts
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ISOKINETIC STRENGTH AFTER TEARS OF THE SUPRASPINATUS TENDON
The Journal of Bone and Joint Surgery. British volume, 1997We measured the isokinetic strength of abduction, adduction, internal rotation, and external rotation in ten patients with full-thickness tears of the supraspinatus and ten with partial-thickness tears. The measurements were repeated after intra-articular or intrabursal injection of local anaesthetic.
E, Itoi +4 more
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Shoulder Strength With Rotator Cuff Tears
Clinical Orthopaedics and Related Research, 1993Twenty-five patients with rotator cuff tears had bilateral isokinetic shoulder strength evaluations after a pain-relieving subacromial lidocaine injection. Shoulder strength testing was repeated at six months and again at 12 months after rotator cuff surgery. Strength was recorded as a ratio of peak torques comparing the operative with the nonoperative
D, Kirschenbaum +5 more
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Effect of Oxygen on the Tear Strength of Elastomers
Rubber Chemistry and Technology, 1990Abstract Many measurements have been made of the strength of simple vulcanizates of common elastomers, both under steady and intermittently applied loads. In both cases, the strength is governed by dissipative processes, particularly those arising from internal molecular motions and from stress-induced crystallization.
Alan N. Gent, M. Hindi
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