文章摘要
Effects of Kyanite Tailings on Properties of SBR Compounds
Received:April 12, 2021  Revised:April 12, 2021
DOI：10.12136/j.issn.1000-890X.2022.12.0910
Key Words: Kyanite tailings;SBR;Modification;Mechanical property
Author NameAffiliationE-mail
WEN Yuan* Wuhan Kingfa Technology Co. ，Ltd 18086017936@163.com 
LI Zhen China University of Geosciences  
HU Shan China University of Geosciences  
HE Liuwei Wuhan Kingfa Technology Co. ，Ltd  
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Abstract:
      The effects of the particle size and modification of kyanite tailings on properties of styrene butadiene rubber （SBR） compounds were studied. The results showed that with the decrease of kyanite tailings particle size[D90（the cumulative distribution particle size of 90%）]，the FL，Fmax and FL － Fmax of SBR compound increased，the thermal decomposition temperatures of SBR vulcanizate at 5% and 50% mass loss rates and the mass retention rate at 700 ℃ were improved. The tensile stress at 300% elogation，tensile strength and tear strength of SBR vulcanizate with kyanite tailings（particle size was 2. 75 μm） modified by various modifiers（palmitic acid，coupling agent KH-550，aluminate and stearic acid） increased，and the tensile stress at 300% elongation，tensile strength and tear strength of SBR vulcanizate with kyanite tailings modified by coupling agent KH-550 were the highest，which were 5. 8 MPa，7. 1 MPa and 24 kN·m-1， respectively. Kyanite tailings modified by coupling agent KH-550 had better bonding with SBR，and the tear section of the SBR vulcanizate was rough and dense.
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