Sustainable plasticizer for butyl rubber cured by phenolic resin
PDF download and online access $59.00 Details Check out ABSTRACT Butyl rubber (also known as isobutylene isoprene rubber, IIR) containing plasticizers and cured by phenolic resin is widely used to manufacture rubber products exposed to high temperature environments.
Sustainable plasticizer for butyl rubber cured by phenolic resin
Butyl rubber (also known as isobutylene isoprene rubber, IIR) containing plasticizers and cured by phenolic resin is widely used to manufacture rubber products exposed to high temperature environments.
Qianhe WANG | University of Akron, Ohio | Department
Sustainable plasticizer for butyl rubber cured by phenolic resin Article Jul 2017 Jiaxi Li Avraam I. Isayev Qianhe Wang Mark D. Soucek Butyl rubber (also known as isobutylene...
Crosslinking of saturated elastomers with diazides
In this paper diazides are presented as alternatives to peroxide vulcanization systems, particularly in combination with the use of plasticizing oils. The performance of three diazides; tri...
EP1016691A1 - Curing of butyl rubber with a phenolic resin
Butyl rubber formulations cured with polycyclic phenol-formaldehyde resins having dimethylene ether bridges and methylene bridges, wherein the molar ratio of dimethylene ether bridges to...
- How is butyl rubber cross-linked or vulcanized?
- Butyl rubber is typically cross-linked or vulcanized by one of three basic methods. These are (1) accelerated sulfur vulcanization, (2) cross-linking with dioxime and related dinitroso compounds, and (3) a phenol-formaldehyde (resol) resin cure. This invention is concerned with the latter curing method.
- How long does butyl rubber last?
- The bladder is thus repeatedly used for a number of cycles. Subjecting phenol-formaldehyde resin cured butyl rubber to elevated temperatures, such as those reached during the process of curing tires, e.g., above 160°C, results in hardening or ageing of the butyl rubber. As a result, the butyl rubber has a limited life in such applications.
- How is butyl rubber made?
- Butyl rubber is produced commercially by copolymerizing isobutylene with small amounts of isoprene.
- How much phenol-formaldehyde resin is in butyl rubber?
- The amount of phenol-formaldehyde resin in the butyl rubber formulation should be about less than 9.5 parts, preferably less than about 9 parts, more preferably less than about 8 parts, to 95 parts by weight of uncured butyl rubber.
- What are the properties of butyl rubber?
- Butyl rubber in the uncured state is a weak material having the typical properties of a plastic gum; it has no definite elastic limit, that is, upon slow application of tensile stress, it elongates almost indefinitely without breaking, and exhibits virtually no elastic recovery after the stress is removed.
- What is the molar ratio of butyl rubber?
- Butyl rubber formulations cured with polycyclic phenol-formaldehyde resins having dimethylene ether bridges and methylene bridges, wherein the molar ratio of dimethylene ether bridges to methylene bridges is less than about 2.5:1, display improved heat ageing characteristics. This invention relates to curing of butyl rubber.
