Carbon black-kuntai

chankun

1. The ratio of nitrogen-adsorption on the carbon black surface is recommendatory test index.

7 u1 [; ^5 r( G0 P2. 300% Stretching Stress is to get the carbon black disparity between the everyday carbon black (SRB3#) sample and the standard in the same experimental situation, with I type and dumbbell type reamer set by GB/T528. The vulcanization of the carbon black lasts 30 minutes under the average temperature of (145±1) .
3 U( K( u9 k) Z' P( D7 o2 I
) `, E9 g: m9 @3 l  C  ~3. All the technical indicators are taken as that of qualified products.



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Chan Kun
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