Mechanical Properties of Aged Cord-Rubber Composites

2012 ◽  
Vol 468-471 ◽  
pp. 1927-1930
Author(s):  
Zhi Min Xie ◽  
Lu Wang ◽  
You Shan Wang ◽  
Dong Liang Chai
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Cyclic Loading ◽  
Thermal Aging ◽  
Rubber Composites ◽  
Aging Conditions ◽  
Steel Cord ◽  
Rubber Component ◽  
Mechanics Of Composite Materials ◽  
Polyester Cord

Cord-rubber composites are usually subjected to cyclic deformation for the tire applications. Due to the hysteretic nature of the rubber, heat generation in the rubber component under dynamic cyclic loading often causes a rise in temperature, which can deteriorate the physical properties of the composites. Therefore, better understanding of the cord-rubber composites under thermal aging conditions is of great importance for the lifetime prediction. In the present work, the effective modulus of polyester cord- and steel cord-rubber composites at different aging conditions was studied by means of the mechanics of composite materials and the Arrhenius relationship based on the properties of components. It is found that the Halpin-Tsai relation with introducing the effect of thermal aging is also valid for the aged cord-rubber composites.

Study on Short Basalt Fiber Reinforced Silicone Rubber Composites

2013 ◽  
Vol 800 ◽  
pp. 383-386 ◽  
Author(s):  
Wei Li Wu ◽  
Jin Yue Cai
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Silicone Rubber ◽  
Basalt Fiber ◽  
Rubber Composites ◽  
Excellent Performance ◽  
Elongation At Break ◽  
Rubber Composite ◽  
Insulating Properties ◽  
Ozone Resistance

Silicone rubber has excellent performance, such as cold resistance, heat resistance, ozone resistance, thermal properties and insulating properties and so on. However, silicone rubber is in the state of semi-liquids and it is very soft, so the mechanical properties of silicone rubber are very poor. In order to improve its availability of silicone rubber, short basalt fiber / silicone rubber composite materials were prepared by using short basalt fiber as reinforcement, and its mechanical properties and compatibility were studied. The best formulation of short basalt fiber / silicone rubber composite materials were determined by testing Shore A hardness, tensile strength and elongation at break, and the morphology structure and compatibility of short basalt fiber / silicone rubber composite materials were discussed by scanning electron microscope and infrared spectrum, prepare excellent performance of silicone rubber composite materials.

EPDM/SBR Blends for Skim Compound of Steel Cord Conveyor Belt: Mechanical Properties, Thermal Stability and Adhesion Level

2021 ◽  
Vol 889 ◽  
pp. 135-143
Author(s):  
Nguyen Thanh Liem ◽  
Nguyen Pham Duy Linh ◽  
Nguyen Huy Tung ◽  
Bach Trong Phuc
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Thermal Aging ◽  
Conveyor Belt ◽  
Elongation At Break ◽  
Pull Out ◽  
Rubber Compounds ◽  
Aging Properties ◽  
Steel Cord ◽  
Adhesion Level

In this paper, the influence of some ingredient concentrations such as SBR ratio, DCP/S, CBS/DPG accelerator, EPDM-g-AM and cord surface on mechanical, thermal aging properties and adhesion between rubber compounds and cord have been investigated. The results showed that with suitable ingredients loading such as EPDM/SBR is 85/15 phr, DCP/S is 2.0/1.5 phr and EPDM-g-AM content is 2.0 phr with respect to rubber, the vulcanizates had good mechanical properties, thermal stability and adhesion level to the zinc/copper galvanized cord. The highest tensile strength, elongation at break and pull out strength reached 18.1 MPa, 432% and 60.3 N/mm respectively, and the highest retention after thermal aging at 150°C for 168 hours was about 0.76.

Study on Short Basalt Fiber Reinforced Fluorine Rubber Composites

2014 ◽  
Vol 1052 ◽  
pp. 258-261
Author(s):  
Wei Li Wu ◽  
Hai Hong Feng
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Basalt Fiber ◽  
Fiber Reinforced ◽  
Rubber Composites ◽  
Excellent Performance ◽  
Elongation At Break ◽  
Rubber Composite ◽  
Ir Analysis ◽  
Ozone Resistance

Fluorine rubber has excellent performance, such as cold resistance, heat resistance, ozone resistance thermal properties and so on. However, fluorine rubber is poor in the mechanical properties. In order to improve its availability of fluorine rubber, short basalt fiber/ fluorine rubber composite materials were prepared by using short basalt fiber as reinforcement, and its mechanical properties and compatibility were studied. The influence of the surface treatment on short basalt fibers, short basalt fiber content on the mechanical properties of short basalt fiber reinforced fluorine rubber composites were studied. The best formulation of short basalt fiber/ fluorine rubber composite materials were determined by testing Shore A hardness, tensile strength and elongation at break. The results show that the formula obtained best mechanical properties is 100 phr fluorine rubber, 10 phr short basalt fiber, and 2.5 phr KH-550. And further demonstrate that compatibility of short basalt fiber / fluorine rubber with KH550 is best by SEM and IR analysis. And prepare excellent performance of fluorine rubber composite materials.

Mechanical Properties of Butyl Rubber Composites with Microspheres Under Cyclic Loading

2021 ◽  
pp. 135-148
Author(s):  
Yuriy Yurkin ◽  
Amadeo Benavent‐Climent ◽  
Pavel Kovtonyuk ◽  
Darya Varankina ◽  
Irina Voloskova
Keyword(s):  
Mechanical Properties ◽  
Cyclic Loading ◽  
Butyl Rubber ◽  
Rubber Composites

scholarly journals Accelerated aging studies of the selected commercial films

Polimery ◽  
2021 ◽  
Vol 66 (6) ◽  
pp. 350-356
Author(s):  
Magdalena Cichecka ◽  
Beata Pałys ◽  
Bożena Wilbik-Hałgas ◽  
Marcin H. Struszczyk
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Environmental Factors ◽  
Thermal Degradation ◽  
Uv Radiation ◽  
Thermal Aging ◽  
Accelerated Aging ◽  
Physical And Mechanical Properties ◽  
Aging Studies ◽  
Aging Conditions

The Arrhenius method was used to investigate the effect of accelerated aging conditions on the physical and mechanical properties of polymer films for technical, medical, food and office applications. Temperature and UV radiation were taken into account as environmental factors. It was shown that the tested films are more sensitive to thermal degradation than UV radiation. The reduction in tensile strength after thermal aging does not exceed 40%, and in the case of UV radiation, 14%. The estimated lifetime of the tested films is over 5 years.

Aging of polymer composite materials under loading. (See Beginning in #10-2020)

2020 ◽  
pp. 2-12
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Polymer Composite Materials ◽  
Cyclic Loads ◽  
Reinforced Plastics ◽  
Water Exposure ◽  
Laboratory Conditions ◽  
Bending Loads ◽  
Moisture Conditions

A study review of aging polymer composite materials (PCM) under different heat-moisture conditions or water exposure with the sequential or parallel influence of static or cyclic loads in laboratory conditions is presented. The influence of tension and bending loads is compared. Conditions of the different load influence on parameters of carbon-reinforced plastics and glass-reinforced plastics are discussed. Equipment and units for climatic tests of PCM under loading are described. Simulation examples of indices of mechanical properties of PCM under the influence of environment and loads are shown.

Aging of polymer composite materials under loading

2020 ◽  
pp. 7-18
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Polymer Composite Materials ◽  
Cyclic Loads ◽  
Reinforced Plastics ◽  
Water Exposure ◽  
Laboratory Conditions ◽  
Bending Loads ◽  
Moisture Conditions

A study review of aging polymer composite materials (PCM) under different heat-moisture conditions or water exposure with the sequential or parallel influence of static or cyclic loads in laboratory conditions is presented. The influence of tension and bending loads is compared. Conditions of the different load influence on parameters of carbon-reinforced plastics and glass-reinforced plastics are discussed. Equipment and units for climatic tests of PCM under loading are described. Simulation examples of indices of mechanical properties of PCM under the influence of environment and loads are shown.

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