Evaluating Plasticizers for Elastomers used in High
Many plasticizers commonly used with those traditional elastomers are too volatile, extractable or incompatible with the higher-performance elastomers. This article provides information about plasticizers that our research has shown are suitable for these high-performance acrylics and highly saturated nitriles.
Evaluating Plasticizers for Elastomers used in High
Acrylic and highly saturated nitrile elastomers are being used where application temperatures exceed the capabilities of traditional nitrile, polychloroprene and chlorosul-fonated polyethylene (to 150°C). Many plasticizers commonly used with those traditional elastomers are too volatile, extractable or incompatible with the higher-performance
18 Technical Ester plasticizers for high-temp AEM elastomers
Ester plasticizers for high-temp AEM elastomers Acrylic elastomers are used in applica-tions requiring continuous service up to 175°C and intermittent exposure to ex-tremely high temperatures of up to 200°C. 1 the past year, These elastomers are considered lower-cost alternatives to other high-temperature elastomers, such as fluoroelastomers
August 22, 2016 15 Technical Evaluating synthetic and
To achieve a high degree of plasticizer compatibility, it is generally necessary that the plasticizer and polymer have approximately the same polarity. Previously, plasticizers were described as solvents of moderately high molecular weight and low volatility.
Plasticizers: Types, Uses, Classification, Selection & Regulation
Still the world’s most widely used PVC plasticizer DINP, DIDP: High molecular weight ortho-phthalates Aliphatic dibasic acid Esters – These include chemicals such as glutarates, adipates, azelates and sebacates. They are made from aliphatic dibasic acids such as adipic acid and alcohols.
- Why are plasticizers added to elastomers?
- Plasticizers are used in elastomers for several reasons, including increasing softness or flexibility, lowering the glass transition temperature, reducing crystallization, increasing dispersion, or lowering the cost of the compound. Common plasticizers used in elastomer compounds are mineral oils and esters such as phthalates, sebacates, and adipates.
- What are some common plasticizers used in elastomer compounds?
- Common plasticizers used in elastomer compounds are mineral oils and esters such as phthalates, sebacates, and adipates. Plasticizers can be added to elastomers for various reasons: increasing softness or flexibility, lowering the glass transition temperature, reducing crystallization, increasing dispersion, or lowering the cost of the compound.
- Are plasticizers effective in reducing low-temperature elastomer test values?
- Plasticizers, when added to acrylic elastomer compounds, can reduce the low-temperature test values obtained compared to unplasticized compounds. Of the monomeric plasticizers tested, DB(3E)A and DADEG appear most effective. It should be noted these are the highest molecular weight of the monomeric esters tested.
- Are plasticizers suitable for elastomers and high-temperature polymers?
- Plasticizers commonly used for the traditional and the high-temperature polymers are extractable, incompatible or too volatile. This paper provides information on plasticizers that are designed for traditional elastomers and high-performance polymers.
- Are elastomer plasticizers good for rubber?
- Traditional elastomer polymers, such as nitrile, polychloroprene, chlorinated polyethylene and chlorosulfonated polyethylene, have for years used moderate- to low-performance ester plasticizers. However, longevity requirements for rubber articles made from these elastomers have created a need for higher-performance ester plasticizers.
- Which plasticizer is best for acrylic elastomers?
- Table V highlights data from this study conducted by DuPont Dow Elastomers L.L.C. ®. DBEEEG, a high molecular weight glycol ether ester monomeric plasticizer, is commonly recommended for acrylic elastomers. In this study, A-1000A and A-1000B show they are equal or better than DBEEEG at softening efficiency and original low temperature.
