Views:11 Author:Site Editor Publish Time: 2016-01-31 Origin:Site
The coffer waterproofing rubber packing EPDM three Yuan second grade third rubber foaming remarkable weathering resistance could cause take this to model the material as raw material oak to become the traditional oak to model the material the substitution product. Three Yuan second grade third rubbers have the high chemical stability, the outstanding electric insulation performance and bears the aging, the waterproof performance. It already may widely use to environmental condition professions and so on in requirement not high each category of architecture and refrigeration, air conditioning, may also widely use to the conditions requires a higher domain, for example: 40℃~150℃ conditions automotive air conditioning device system in below zero. Bears the temperature and the environmental protection requirement high area, for example: Pharmaceutical manufacturing plant, hospital, war industry instrument and so on.
Rubber characteristic: Three Yuan second grade third rubbers become spongy have the high chemical stability, the outstanding electric insulation performance and bears the aging to bear the water performance, mainly displays in the following several aspects:
1. high bears the old chemical property
A outstanding bears the ozone performance - - three Yuan second grade third rubbers by the reputation is " the non-chap rubber ", bears the ozone performance in the general rubber to be best.
B good thermostability.
C outstanding bears the old chemical property - - in 130℃ under to be possible the long-term use, may be separated again or the short-term use under 150℃ either the high some temperatures.
The D outstanding weathering resistance - - is refers in the natural environment the light, the heat, frozen, in the wind, the rain, the atmosphere the ozone, the oxygen synthesis factor aging.
2. outstanding bears the chemicals performance: Because three Yuan second grade third rubber's chemical stability and nonpolar, therefore does not have the chemical reaction with the most chemicals, does not dissolve or the intermiscibility with the polar material between is very small, it bears, the acid mellowly (formic acid, ethanoic acid) the strong alkali, the oxidant (for example H202, HCLO and so on), the detergent, the zoology and botany oil, the alkone, certain fat, jing.
3. remarkable water resistant, bears overheated and the water resistant vapor performance: The water is the strong polar material, three Yuan second grade third rubbers are belong to one kind of high polymer alkane jing, has “the hatred river character”. Between both are not easy to have the chemical action, therefore has outstanding water resistant, bears overheated and the water resistant vapor performance.