橡胶
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Dia•Com搭建了大型的橡胶配方设计存货仓库，以满足顾客对不同型号滚动膜片应用的广泛需求。同时，Dia•Com公司还招募了全职的橡胶化学家，持续研究开发橡胶配方以满足日新月异变化的行业需求。
Chemical Compatibility Tables
Dia•Com公司使用了各种膜片材质，如Nitrile, EPDM, Neoprene, Fluorosilicone, Silicone, SBR, Fluoroelastomers (Viton®), Hydrin and Vamac®等。公司已经研发出FDA等级抗氯胺的特殊混合物，它经过NSF 61 , UL-157 和 EN-549的认证，可以在丙烷环境中使用。
查看NSF的许可，请点击：http://www.nsf.com/Certified/PwsComponents/Listings.asp?Company=1C310&Standard=061
查看 UL 157 JMST2证书:
查看UL 157 JMLU2 证书:
橡胶有许多物理特性，例如抗张强度、延长性、模数、压迫形变、抗扯强度以及化学兼容性等。当选用一个合适的橡胶用于滚动膜片时，上述所有特性都必须考虑周全。若想选择合适的橡胶，请联系Dia•Com公司代表。
| 物理属性 | |||||||||
| Elastomer 类型 (ASTM Designation) |
Butyl (IIR) |
Ethylene Propylene (EPDM) |
Fluoro- Carbon (FKM) |
Fluoro- Silicone (FVMQ) |
Hydrin (CO/ECO) |
Neoprene (CR) |
Nitrile (NBR) |
Silicone (VMQ) |
Styrene Butadyene (SBR) |
| Compression Set Resistance | Good | Fair | Good-Excel | Fair-Good |
Fair-Good | Fair-Good | Good | Good-Excel | Good |
| Durometer Range (Shore A) | 30-100 |
30-90 |
50-95 |
35-80 | 30-95 | 40-95 | 20-90 | 25-90 | 40-100 |
| Elongation % |
300-800 | 200-800 |
100-450 |
100-500 | 300-400 | 650-850 | 400-600 | 90-900 | 400-550 |
Tensile Strength (PSI) |
2,000+ | 1,500-3,000 |
1,500-3,000 | 350-850 |
1,500-2,000 |
2,000-3,000 |
1,000-3,500 | 600-1,500 | 2,000+ |
| Nitrogen Permeability Resistance |
Excellent |
Good |
Excellent |
Poor |
Excellent |
Fair |
Good |
Poor |
Fair |
| Resilience |
Excellent |
Good | Fair |
Good | Good | Excellent |
Good |
Poor-Excel | Good |
| 抗化学属性 | |||||||||
| Elastomer Type (ASTM Designation) |
Butyl (IIR) |
Ethylene Propylene (EPDM) |
Fluoro- Carbon (FKM) |
Fluoro- Silicone (FVMQ) |
Hydrin (CO/ECO) |
Neoprene (CR) |
Nitrile (NBR) |
Silicone (VMQ) |
Styrene Butadyene (SBR) |
| Abrasion | Good |
Good | Good |
Fair |
Fair-Good |
Good | Excellent |
Poor-Excel |
Excellent |
| Electrical Properties-Insulating | Good | Excellent | Fair | Excellent | Poor-Fair |
Fair | Fair |
Excellent | Excellent |
Electrical Properties-Conductive |
Fair |
Poor | Excellent |
Poor | Excellent |
Fair | Fair | Poor | Poor |
| Impact | Good |
Good |
Poor-Good | Fair | Good |
Good | Fair |
Poor-Good | Excellent |
| Tear | Good | Poor | Poor-Good |
Fair | Good | Good | Good |
Poor-Good |
Fair |
| 抗外部环境属性 | |||||||||
| Elastomer Type (ASTM Designation) |
Butyl (IIR) |
Ethylene Propylene (EPDM) |
Fluoro- Carbon (FKM) |
Fluoro- Silicone (FVMQ) |
Hydrin (CO/ECO) |
Neoprene (CR) |
Nitrile (NBR) |
Silicone (VMQ) |
Styrene Butadyene (SBR) |
| Cold Termperature Flexibility |
Good | Good |
Fair-Good |
Good |
Good |
Fair |
Good |
Excellent |
Good |
| Flame Retardance |
Poor |
Poor-Fair |
Excellent |
Outstanding | Fair |
Good |
Poor-Fair |
Fair-Poor |
Poor |
| Heat Aging |
Good |
Excellent |
Outstanding |
Outstanding | Excellent | Good |
Good | Excellent |
Good |
| 抗机械属性 | |||||||||
| Elastomer Type (ASTM Designation) |
Butyl (IIR) |
Ethylene Propylene (EPDM) |
Fluoro- Carbon (FKM) |
Fluoro- Silicone (FVMQ) |
Hydrin (CO/ECO) |
Neoprene (CR) |
Nitrile (NBR) |
Silicone (VMQ) |
Styrene Butadyene (SBR) |
| Ozone |
Good | Good |
Fair-Good |
Good |
Good |
Fair |
Good |
Excellent |
Good |
| Radiation |
Fair-Good |
Poor |
Fair-Good |
Good-Excel | Fair |
Fair-Good |
Fair-Good |
Fair-Excel |
Good |
| Weather |
Excellent |
Excellent |
Excellent |
Outstanding | Good | Excellent |
Good | Excellent |
Fair |
| 抗化学属性 | ||||||||||
| Elastomer Type (ASTM Designation) |
Butyl (IIR) |
Ethylene Propylene (EPDM) |
Fluoro- Carbon (FKM) |
Fluoro- Silicone (FVMQ) |
Hydrin (CO/ECO) |
Neoprene (CR) |
Nitrile (NBR) |
Silicone (VMQ) |
Styrene Butadyene (SBR) |
|
| Acid-Dilute Concentration | Fair |
Good-Excel | Fair-Good |
|
Fair-Good | Good-Excel | Fair-Good |
Fair-Good | Fair-Good |
|
| Aliphatic Hydrocarbons |
Poor | Poor |
Excellent | Excellent | Excellent |
Good | Excellent |
Poor-Fair | Poor | |
| Alkali-Dilute Concentration | Fair-Good | Good-Excel | Good-Excel |
Good-Excel |
Fair-Good | Good-Excel |
Good-Excel |
Good-Excel | Fair-Good |
|
| Aromatic Hydrocarbons | Poor |
Poor |
Excellent |
Good-Excel |
Excellent | Fair |
Fair-Good |
Poor |
Poor |
|
| ATF Type A | Poor |
Poor | Excellent |
Excellent |
Good |
Good |
Excellent |
Good |
Poor | |
| Chlorinated Hydrocarbons | Poor |
Poor |
Excellent |
Good-Excel |
Good-Excel | Poor |
Fair-Good | Poor |
Poor |
|
| Diesel Oil | Poor | Poor | Excellent |
Good |
Excellent |
Fair | Good-Excel |
Poor |
Poor |
|
| Diester Lubricants | Poor |
Poor |
Excellent |
Excellent |
Good |
Poor | Fair-Good |
Poor |
Poor |
|
| EP Lubricants | Poor |
Poor |
Excellent |
Excellent |
Poor |
Poor-Fair | Fair |
Good |
Poor |
|
| Ethyl Alcohol |
FairFair | Good-Excel |
Excellent | Excellent |
Good |
Excellent |
Good |
Excellent |
Fair |
|
| Ethylene Glycol |
Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Excellent | Good | |
| Ethylene Glycol/Water |
Fair-Good |
Good | Good | Good | Fair |
Good |
Good |
Excellent | Good |
|
| Gasoline |
Poor | Poor | Excellent |
Excellent |
Good-Excel | Fair |
Good-Excel |
Poor |
Poor |
|
| Hydraulic Fluids-Petroleum Base | Poor |
Poor |
Excellent |
Excellent |
Excellent |
Poor-Fair | Poor-Fair | Poor |
Poor |
|
| Hydraulic Fluids-Silicate Ester | Fair |
Poor | Excellent | Outstanding |
Fair-Good |
Good |
Good |
Poor |
Poor-Fair |
|
Hydraulic Fluids-Phosphate Ester |
Good |
Good |
Poor |
Poor |
Poor |
Fair | Poor |
Good |
Poor |
|
| Ketones | Good | Fair-Excel | Poor |
Poor |
Fair | Fair | Poor | Fair-Good |
Good |
|
| Lubricating Oils-High Aniline | Fair |
Poor |
Excellent |
Excellent |
Excellent |
Good |
Good-Excel |
Good |
Poor |
|
| Lubricating Oils-Low Aniline | Good |
Poor | Excellent |
Excellent |
Excellent |
Fair | Fair-Excel | Poor-Fair | Poor | |
| Silicone Oil | Good |
Excellent | Excellent |
Excellent |
Excellent |
Excellent |
Good | Poor |
Good | |
| Steam-Above 250°F (121°C) | Poor-Fair | Excellent | Fair |
Poor-Fair |
Poor |
Fair |
Fair | Poor-Fair |
Poor-Fair | |
| Water-212°F (100°C) | Good | Excellent | Excellent |
Excellent |
Good |
Good |
Excellent | Excellent |
Excellent | |