Preparation of high‐performance epoxy‐containing silicone rubber via hydrosilylation reaction

2019 ◽  
Vol 137 (8) ◽  
pp. 48397 ◽  
Author(s):  
Yuan Wang ◽  
Bin Zhang ◽  
Shengtai Zhou ◽  
Yang Chen ◽  
Mei Liang ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
High Performance ◽  
Hydrosilylation Reaction

Preparation and Characterization of Hyperbranched Silicone Oil by Hydrosilylation Reaction

2013 ◽  
Vol 395-396 ◽  
pp. 363-366
Author(s):  
Zhu Liu ◽  
Hua Shi Liu ◽  
Rui Fang Guan ◽  
Chuan Jian Zhou
Keyword(s):  
Dynamic Viscosity ◽  
High Performance ◽  
Silicone Oil ◽  
Raw Materials ◽  
Molar Ratio ◽  
Straight Chain ◽  
Hydrosilylation Reaction ◽  
H Nmr ◽  
Structures And Properties

Hyperbranched silicone oil was prepared using low-polyhydrosiloxane and vinyl terminated methylphenyl silicone oil as the raw materials through hydrosilylation reaction. The structures and properties of hyperbranched silicone oil were characterized through 1H NMR, TG and dynamic viscosity. The influence on synthesis of hyperbranched silicone oil was discussed, which was caused by ratio of different raw materials. When molar ratio of Si-H bond and Si-Vi bond of raw materials was 3.5:1 (mol), the reaction degree of hyperbranched silicone oils double bond was as high as 80%. At room temperature and 100°C, comparing the dynamic viscosity of hyperbranched silicone oil and straight chain silicone oil, we found that viscosity decrease rate of hyperbranched silicone oil was obviously lower. TG curve of hyperbranched silicone oil and straight chain silicone oil also certified that the hyperbranched silicone oil has higher thermal stability than the straight chain phenyl silicone oil. Therefore hyperbranched silicone oil is more suitable for the preparation of high-performance elastic clay than straight chain silicone oil.

The synergistic effect of fluorosilicone and silica towards the compatibilization of silicone rubber and fluoroelastomer based high performance blend

2020 ◽  
Vol 27 (4) ◽  
Author(s):  
Sipra Khanra ◽  
Debabrata Ganguly ◽  
Sanjoy Kumar Ghorai ◽  
Debottam Goswami ◽  
Santanu Chattopadhyay
Keyword(s):  
Synergistic Effect ◽  
Silicone Rubber ◽  
High Performance

High-Frequency Modeling and Signal Integrity Analysis of a Silicone Rubber Socket for High-Performance Package

2017 ◽  
Vol 7 (8) ◽  
pp. 1356-1368 ◽  
Author(s):  
Hyesoo Kim ◽  
Jonghoon J. Kim ◽  
Junyong Park ◽  
Shinyoung Park ◽  
Sumin Choi ◽  
...  
Keyword(s):  
Silicone Rubber ◽  
High Frequency ◽  
High Performance ◽  
Signal Integrity ◽  
Integrity Analysis

Molding of Rubber for High Performance Applications

1985 ◽  
Vol 58 (3) ◽  
pp. 662-683 ◽  
Author(s):  
J. G. Sommer
Keyword(s):  
Silicone Rubber ◽  
High Performance ◽  
Space Shuttle ◽  
High Strength ◽  
Steel Plates ◽  
Spark Plug ◽  
Lip Seals ◽  
Design Factors ◽  
Bridge Bearings

Abstract This paper broadly considers rubbers (elastomers), molding methods, and some problems associated with molding for high-performance (HP) applications. Molding procedures are then reviewed for several products used in HP applications. The elastomers mainly discussed are NR, SBR, CR, NBR, chloro-sulfonylpolyethylene rubber, silicone rubber, hydrofluoroelastomer and perfluorelastomer. NR is used in HP applications because it possesses desirable properties such as excellent fatigue resistance and high strength. Other rubbers or elastomers, such as silicone or perfluoroelastomer, are used in HP applications because they resist high temperatures and aggressive fluids. When molding these elastomers by compression, transfer, and injection, special procedures are sometimes necessary. These are discussed along with factors that affect molding behavior and the quality of molded products. These factors include: rheology, rubber shrinkage, inserts in moldings, mold fouling, mold materials, and design factors for molds. A special design is used for a compression mold for O-rings made from perfluoroelastomer. These are used to seal against aggressive fluids like dinitrogen tetroxide. In other HP sealing applications, NBR lip seals are used; molding factors are discussed which significantly affect their sealing capability. Also discussed are laminates, where NR is bonded to metal. These are used as bridge bearings and the steel plates in them cause nonuniform shrinkage. A nozzle bearing for the space shuttle is another HP application for an NR laminate; over 100 thermocouples were used to monitor temperature during molding. This paper concludes with a brief discussion of molding silicone rubber for spark plug boots and electrical connectors.

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