Vulcanization is a physicochemical (physical and chemical) change resulting from the cross linking of the unsaturated hydrocarbon chain of natural rubber (polyisoprene) with sulfur, and the application of heat. Three factors that affect the properties of the vulcanizate (vulcanized product) - answerPercentage of sulphur and accelerator used Temperature of the curing process Time of cure Methods used to cure (vulcanize) rubber are - answerAutoclave (vulcanizer) cure Internal steam cure A...

Describe air turns - ANSWER-eliminates air stratification. 1-2 Turns is sufficient Below what RH does corrosion virtually cease? - ANSWER-40% 2 ways to reduce RH of boundary layer- - ANSWER-increase surface temp & dehumidification 2 types of dehumidification equipment: - ANSWER-refrigerant & desiccant Benefits of dehumidification - ANSWER-dries air, lowers dew point, holds surface during coating application, holds blast with dry air, permits blasting the entire surface. Electronic...

Describe air turns - ANSWER-eliminates air stratification. 1-2 Turns is sufficient Below what RH does corrosion virtually cease? - ANSWER-40% 2 ways to reduce RH of boundary layer- - ANSWER-increase surface temp & dehumidification 2 types of dehumidification equipment: - ANSWER-refrigerant & desiccant Benefits of dehumidification - ANSWER-dries air, lowers dew point, holds surface during coating application, holds blast with dry air, permits blasting the entire surface. Electronic...