Curing Butyl Rubber
Advantages
* Excellent heat resistance
* Good compression set
* Non-blooming
* Non-staining
* Tasteless and odour free vulcanisates
Applications
* Tyre curing bags
* Heat Resistant conveyor belting
* Steam hose
* Heat resistant diaphragm
* Bag-O-Matic and Auto-form
* Bladders
* Pharmaceutical clousers
* Dampers and Mountings
* Heat Resistant Packagings
The first and probably the most widely exploited application is Ttyre curing bags and bladders.
Other Heat resistant applications would include mechanical goods such as spark plug covers, gaskets for sealing, opening of klins etc.
Typical Properties :
Appearance Pale yellow coloured lumps
Melting Point(<sup>0</sup>C) (Ring & Ball method) 80-90
Specific Gravity 1.05
Solubility Soluble in Hydrocarbon solvents
A reasonable state of cure in Butyl vulcanisates can be achieved with Resin alone but the rate of cure is too slow for commercial use, therefore activators or catalyst are necessary for faster rate of curing
Inorganic metal halides and halogen containing elastomers individually or in combination are used as catalyst.
With appropriate level of Resin and activator(s) usage and compounding technique any or all the specific properties of Butyl Rubber with excellent heat resistance can be obtained.
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