| rubber variety (ASTM ) |
IR
|
SBR
|
BR
|
CR
|
NBR
|
|
| chemical structure | Isoprene Rubber,Cis 1,4- Polyisoprene “Synthetic Natural Rubber” | Styrene Butadiene Rubber | Polybutadiene Rubber | Poly-2-chlorobutadiene -1,3 chloroprene Rubber, Neoprene | Butadiene Acrylnitrile Rubber,Nitrile Rubber | |
| main characteristics | high flexibility, good comprehensive physical mechanic performance | better wear-resistant and anti-aging function than NR, lower prices | same wear-resistant with NR and better flexible and lower temperature resistant than NR | good climate resistant, ozone proof, hot resistance and chemical resistant | good oil-resistant, wear-resistant and anti-aging | |
| quality of NR | proportion | 0.93 | 0.94 | 0.93 | 1.23 | 0.96~1.02 |
| meni adhesive
meni adhesive ML 1+4 100 ℃ |
45 ~150 | 30~ 7 0 | 35~55 | 45~120 | 30~100 | |
| rubber physical performance | hardness range
( SHORE A ) |
2 0~100 | 4 0~100 | 30~100 | 45~120 | 30~130 |
| anti-tensity (MPa) | 7~27 | 7~24 | 7~20 | 7~27 | 7~27 | |
| elongation rate (%) | 100~ 700 | 100~ 700 | 100~ 700 | 100~ 600 | 100~700 | |
| re-elasticity | excellent + | good | excellent + | excellent | good | |
| tearing force | excellent | middle ~ good | good | good | good | |
| wear-resistant | excellent | excellent | excellent | excellent | excellent | |
| compress & distortion | good | good | middle | good | good | |
| temperature range(℃) | -75~90 | -60~100 | -100~100 | -50~120 | -50~120 | |
| climate resistant | middle | middle | middle | excellent | bad | |
| ozone proof | bad | middle | bad | good ~ excellent | middle | |
| electric performance | excellent | middle | good | good | bad ~ middle | |
| gas penetrating resistant | middle | middle | middle | good | excellent | |
| oil-resistant and acid& alkali resistant | oil-resistant | bad | bad | bad | good | excellent |
| fire-resistant | bad | bad | bad | middle | good | |
| alcohol | excellent | excellent | excellent | excellent | excellent | |
| MEK | good | good | good | good | middle | |
| water | excellent | good ~ excellent | bad | good | excellent | |
| high concentration inorganic acid | middle | bad | bad | middle | middle | |
| low concentration inorganic acid | good | good | good | excellent | good | |
| high concentration alkali | good | good | good | excellent | good | |
| low concentration alkali | good | good | good | excellent | good | |
| application | tyre, rubber shoes, rubber pipe, adhesive tape, air spring | tyre, rubber shoes, rubberized fabrics, sports products, mattress, accumulator shell, adhesive tape | car & air plane tyre, rubber shoes, shock absorber rubber, adhesive tape, rubber pipe | wire sleeve, conveying line shock absorber rubber, window & door wedge, rubber adhesives, rubberized fabrics | oil seal, washer, oil-resistant rubber pipe, printing rubber roller, textile leather roller | |
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