scholarly journals Development of Rubber Composite Materials Using Waste EPDM

2012 ◽  
Vol 47 (2) ◽  
pp. 121-128 ◽  
Author(s):  
Dong-Kyu Park ◽  
Yeo-Joo Hong ◽  
Keuk-Min Jeong ◽  
Jin-Kuk Kim
Keyword(s):  
Composite Materials ◽  
Rubber Composite

Electromechanical-Conductive Natural Rubber Doped Eggshell and Eggshell Membrane for Drug Delivery and Actuator Applications

2018 ◽  
Vol 934 ◽  
pp. 43-49
Author(s):  
Poramin Boonprasert ◽  
Nuchnapa Tangboriboon
Keyword(s):  
Composite Materials ◽  
Natural Rubber ◽  
Artificial Muscle ◽  
Eggshell Membrane ◽  
Curing Time ◽  
Electrical Field ◽  
Fibrous Protein ◽  
Rubber Composite ◽  
Field Response ◽  
Biomimetic Actuator

Natural rubber composite materials were prepared by using sulfur curing system of STR 5L added with hen eggshell and eggshell membrane to increase electrical and mechanical properties for biomimetic actuator and artificial muscle applications. Samples were vulcanized at temperature 150°C. Hen eggshells and eggshell membrane powder (0, 20, 40, and 60 phr) were added into natural rubber. The main composition of hen eggshells composed of 96.35 wt% calcium carbonate (CaCO3) while mostly composition of hen eggshell membrane is fibrous protein in terms of collagen. The best condition is addition of eggshell 40 phr (formula 3) and eggshell membrane 20 phr (formula 5) to obtain the highest storage modulus response equal to 2.85 x 106 and 2.97 x106 Pa, respectively. The curing time (Tc90) of pure natural rubber (formula 1), formula 3, and formula 5 are 8.22, 6.73, and 5.67 min, respectively. Furthermore, the curing time, rheology, and electrical field response of natural rubber composite materials were measured by moving die rheometer and impedance analyzer, and reported here.

Rubber composite materials with the effects of electromagnetic shielding

2015 ◽  
Vol 37 (10) ◽  
pp. 2933-2939 ◽  
Author(s):  
Richard Sýkora ◽  
Vladimir Babayan ◽  
Mariana Ušáková ◽  
Ján Kruželák ◽  
Ivan Hudec
Keyword(s):  
Composite Materials ◽  
Electromagnetic Shielding ◽  
Rubber Composite

Effect of Electrical Conductivity and Physical Performance about Vulcanization System in Conductive Silicon Rubber

2014 ◽  
Vol 577 ◽  
pp. 39-43
Author(s):  
Yue Xian Zhang ◽  
Bin Li
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Composite Materials ◽  
Polymer Composites ◽  
Conductive Polymer ◽  
Research Progress ◽  
Silicon Rubber ◽  
Conductive Polymer Composites ◽  
Rubber Composite ◽  
Influence Degree

Vulcanization methods of conductive silicon rubber are described in this paper. Several common vulcanization agents are also be introduced. The conductivity and mechanical properties of the conductive silicon rubber composite materials are effected by vulcanization systems. The influence degree is introduced by respectively using different vulcanization method, vulcanizing time and vulcanizing temperature. The research progress of vulcanization system of conductive polymer composites is elaborated.

Study of Applying Aramid Fiber Treated Insurface to EPDM Rubber Composite Materials

2013 ◽  
Vol 446-447 ◽  
pp. 18-21
Author(s):  
Xiang Hui Lu ◽  
Chen Liu ◽  
Jun Tian ◽  
Yang Li
Keyword(s):  
Tensile Strength ◽  
Composite Materials ◽  
Fiber Composite ◽  
Aramid Fiber ◽  
Epdm Rubber ◽  
Untreated Fiber ◽  
Rubber Composite ◽  
Increased Strength ◽  
Fiber Composite Materials

The surface of aramid fiber is very smooth and chemical inert.The adhesiveness of aramid fiber with EPDM rubber materials is not good.So the tensile strength of EPDM rubber composite materials is influenced seriously.This paper modified the surface of aramid fiber with silicon coupling agentKH-550. We test the chang of fibers in surface with the ESCA,and the result is that content of carbon decreased ,while content of nitrogen and oxygen element increased.The activity of surface of fiber has been increased. Strength of composite materials increased from 2.58MPa to 3.22 MPa . The SEM photos of samples indicate that the weight of EPDM rubber on surface of EPDM rubber is more than untreated fiber composite materials .The treating effect on aramid fiber is best when the concentration of KH-550 is 5%,5hours.

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.

Enhancing the Piezoresistance Senstivity and Repeatability of Carbon Nanotube/Silicone Nanocomposites

2014 ◽  
Vol 590 ◽  
pp. 207-210
Author(s):  
Xiao Xiang Zhang ◽  
Long Ba
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Composite Materials ◽  
Carbon Black ◽  
Silicone Rubber ◽  
Smart Materials ◽  
Biomedical Engineering ◽  
Rubber Composites ◽  
Rubber Composite ◽  
Percolation Network

The nanocomposites of carbon nanotube/polymer have been studied to explore their piezoresistance properties, which can be used as smart materials in the fields like biomedical engineering, robotic engineering, and advanced instrumentation. The differences in piezoresistance behavior of the previous studies were explained by the less uniformity of carbon nanotubes. To clarify the resistance versus deformation relations for carbon nanotube/silicone rubber composite materials, we have fabricated composite materials with various nanotube and carbon black contents. The measurements show that the resistance versus deformation sensitive range is depends on both the content of nanotube and carbon black, while the tiny variation of content of the carbon black affects largely the total piezoresistance sensitivity and repeatability. The experiment shows that adequate amount of carbon balck mixed with carbon nanotube can improve the piezoresistance repeatability. The deformation induced variation of the conducting percolation network shall be the dominating mechanism for the piezoresistance behavior of carbon nanotube/silicone rubber composites.

Sign in / Sign up

Export Citation Format

Share Document