Silane pre-treated silica produced by ball milling and its reinforcing effects on an industrial rubber compound

2021 ◽  
Author(s):  
T. C. Soh ◽  
S. S. Yoong
Keyword(s):  
Ball Milling ◽  
Rubber Compound ◽  
Industrial Rubber ◽  
Reinforcing Effects

Synergistic effects of kaolin and talc in a bromobutyl rubber compound for syringe plunger application

2016 ◽  
Vol 49 (1) ◽  
pp. 12-22 ◽  
Author(s):  
Zhen-Xiu Zhang ◽  
Xiao-pei Zhao ◽  
Bin Sun ◽  
Zhen-guo Ma ◽  
Zhen Xiang Xin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Synergistic Effects ◽  
Dynamic Mechanical Properties ◽  
Filler Materials ◽  
Rubber Compound ◽  
Syringe Plunger ◽  
Compression Set ◽  
Reinforcing Effects ◽  
The Difference ◽  
Medical Syringe

The effectiveness of separate and combined incorporation of two natural, inexpensive, and nontoxic filler materials, kaolin and talc, at their various proportions in a bromobutyl rubber (BIIR) compound for a medical syringe plunger was investigated. The dispersion of kaolin was finer and more homogeneous than talc in BIIR. The curing was also enhanced in the presence of kaolin than talc. The difference in dispersion as well as reinforcing effects of the different fillers were reflected in the dynamic mechanical properties of the compounds. Tensile properties of the compounds were not significantly varied with varying kaolin/talc ratio of the compounds, however, tear strength decreased for higher contents of talc in the compounds. A significant synergistic reduction of compression set was achieved for 75/15 ratio of kaolin and talc in the rubber compound, very important for a plunger compound.

BALL MILLING OF INTERMETALLIC PHASES IN THE Nb-Al SYSTEM

1990 ◽  
Vol 51 (C4) ◽  
pp. C4-169-C4-174 ◽  
Author(s):  
M. OEHRING ◽  
R. BORMANN
Keyword(s):  
Ball Milling ◽  
Intermetallic Phases

High-energy ball milling

2010 ◽  
Author(s):  
Małgorzata Sopicka-Lizer
Keyword(s):  
Ball Milling ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Energy Ball

Effects of Aging on the Morphology of Rubber-Brass Interfacial Layer

2011 ◽  
Vol 39 (1) ◽  
pp. 20-43 ◽  
Author(s):  
A. Ashirgade ◽  
P. B. Harakuni ◽  
W. J. Vanooij
Keyword(s):  
Chemical Composition ◽  
Interfacial Layer ◽  
Secondary Ion Mass Spectrometry ◽  
Morphological Changes ◽  
Grazing Incidence ◽  
Complex Nature ◽  
Rubber Compound ◽  
Tire Cord ◽  
Morphological Transformation ◽  
Adhesion Promoter

Abstract Adhesion between rubber compound and brass-plated steel tire cord is crucial in governing the overall performance of tires. The rubber-brass interfacial adhesion is influenced by the chemical composition and thickness of the interfacial layer. It has been shown that the interfacial layer consists mainly of sulfides and oxides of copper and zinc. This paper discusses the effect of changes in the chemical composition and the structure of the interfacial layers due to addition of adhesion promoter resins. Grazing incidence x-ray diffraction (GIXRD) experiments were run on sulfidized polished brass coupons previously bonded to five experimental rubber compounds. It was confirmed that heat and humidity conditions lead to physical and chemical changes of the rubber-steel tire cord interfacial layer, closely related to the degree of rubber-brass adhesion. Morphological transformation of the interfacial layer led to loss of adhesion after aging. The adhesion promoter resins inhibit unfavorable morphological changes in the interfacial layer, thus stabilizing it during aging and prolonging failure. Tire cord adhesion tests illustrated that the one-component resins improved adhesion after aging using a rubber compound with lower cobalt loading. Based on the acquired diffraction profiles, these resins were also found to impede crystallization of the sulfide layer after aging, leading to improved adhesion. Secondary ion mass spectrometry depth profiles and scanning electron microscopy micrographs strongly corroborated the findings from GIXRD. This interfacial analysis adds valuable information to our understanding of the complex nature of the rubber-brass bonding mechanism.

Engineering Porosity Through Defects in a Giant Pore Metal–Organic Framework

2020 ◽  
Author(s):  
Adam Sapnik ◽  
Duncan Johnstone ◽  
Sean M. Collins ◽  
Giorgio Divitini ◽  
Alice Bumstead ◽  
...  
Keyword(s):  
Distribution Function ◽  
Ball Milling ◽  
Local Structure ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Defect Engineering ◽  
Metal Organic ◽  
Unsaturated Metal Sites

<p>Defect engineering is a powerful tool that can be used to tailor the properties of metal–organic frameworks (MOFs). Here, we incorporate defects through ball milling to systematically vary the porosity of the giant pore MOF, MIL-100 (Fe). We show that milling leads to the breaking of metal–linker bonds, generating more coordinatively unsaturated metal sites, and ultimately causes amorphisation. Pair distribution function analysis shows the hierarchical local structure is partially</p><p>retained, even in the amorphised material. We find that the solvent toluene stabilises the MIL-100 (Fe) framework against collapse and leads to a substantial rentention of porosity over the non-stabilised material.</p>

Sign in / Sign up

Export Citation Format

Share Document