By rowanjenkins | Last updated 21st June 2024

ASTM D3186 Standard Test Methods for Rubber, Evaluation of SBR (Styrene-Butadiene Rubber) Mixed With Carbon Black and Oil

ASTM D3186 covers the components, test formula, mixing techniques, and test methods for assessing and managing the production of colored Styrene-Butadiene Rubber (SBR) varieties, such as pigmented SBR oil masterbatches. Essential ingredients in the test recipe for assessing colored forms of SBR include TBBS (N-tert-butyl-2-benzothiazolesulfenamide), zinc oxide, sulfur, and stearic acid. These elements are essential to giving the rubber compound the appropriate qualities. Through the provision of precise instructions for mixing cycles, batch mass measurement, and testing to evaluate compound viscosity, processability, and vulcanization properties, the standard's mixing processes aid in ensuring production control of SBR.

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    Introduction to ASTM D3186

    The testing procedures described in ASTM D3186 evaluate SBR that has been combined with oil or carbon black. These techniques offer a systematic way to evaluate the characteristics and caliber of rubber compounds that are utilized in different applications. Key features are measured by means of components such as TBBS, sulfur, stearic acid, and zinc oxide. The testing processes, which include batch mass measurements and mixing cycles, are essential to maintaining production control and uniformity in the SBR product manufacturing process. For the assessment and manufacturing of SBR, following ASTM D3186 procedures contributes to the achievement of repeatable outcomes. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM D3186 tests for our clients. 

    ASTM D3186 Test Methods

    Apparatus SetupMill, miniature internal mixer (MIM), standard laboratory mill, weighing scales, and testing mills. 
    Measurements MethodsThe testing process for assessing colored varieties of SBR entails careful sample preparation, which is followed by certain mixing steps utilizing a miniature internal mixer (MIM) or a mill mix. Following the prescribed mixing cycle, the batch mass is measured and recorded for the mill mix method. Deviations from theoretical values greater than 0.5% result in batch discards. After that, samples are sliced in order to test for vulcanization, viscosity, and processability. Batch rejection occurs when deviations from the specified batch mass exceed 0.5%. The MIM method follows the mixing cycle. 

    ASTM D3186 Specimens

    Specimen DetailsThe specimens are ready for vulcanization and stress-strain testing is applied to them 
    Specimen PreparationThe test sheets are cut into appropriate sizes and vulcanized.
    Specimen DimensionsThe test sheets are sheeted off for tensile stress-strain testing, reaching a final thickness of about 2.2 mm (0.087 in.).

    ASTM D3186 Test Results

    ASTM D3186 offers essential information on compound viscosity, processability, vulcanization characteristics, and tensile stress-strain properties from testing pigmented SBR. These data are crucial for evaluating the rubber compounds’ flow behavior, processing appropriateness, vulcanization efficiency, and mechanical strength to ensure quality control and performance in a variety of applications.

    Tests Related to ASTM D3186

    ASTM D638  is a test similar to ASTM D3186 and enlists a protocol for evaluating the mechanical characteristics and performance of plastics, while ASTM D882 offers guidelines for identifying and analyzing the tensile characteristics of plastics in sheets and films.

    FAQ's

    Where can I get the astm d3186 tested?

    You can share your astm d3186 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d3186 test to various testing techniques.

    How much do I need to pay for the astm d3186 test?

    Please contact us for a detailed quote for your astm d3186 testing needs. Cost incurred to carry out different astm d3186 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.

    How many samples are required for astm d3186?

    The required number of samples or specimens should comply with the procedure given in the astm d3186 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

    How much discount can I get on the astm d3186 test?

    MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.

    How many days will it take to complete the astm d3186 test?

    The turnaround time for astm d3186 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.

    Where can I get the astm d3186 tested?

    You can share your astm d3186 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d3186 test to various testing techniques.

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