Impact of cationic quaternary ammonium salt modified zeolite on the characteristics of natural rubber
The cationic quaternary ammonium salt dimethyl diallyl ammonium chloride(DMDAAC)was utilized for the modification of natural zeolite following ball milling,and the natural zeolite or modified zeolite/NR composite material was prepared by substituting a portion of carbon black with natural rubber(NR).Through an ion exchange reaction,DMDAAC can be adsorbed onto the surface of zeolite,altering its chemical properties and reducing polarity to enhance dispersion within NR,thereby improving binder mechanical properties.Results indicate that vulcanized rubber achieves a tensile strength and tearing strength of 28.6 MPa and 119.3 kN/m respectively at a replacement rate of 5 parts.The wear volume measured by Akron abrasion is minimized at 0.28 cm3,while resistance to flexural fatigue reaches 315,000 cycles.At a replacement rate of 10 parts,vulcanized rubber exhibits an elongation at break reaching 491％,along with improved skid resistance and reduced rolling resistance.
dimethyl diallyl ammonium chloridemodified zeoliteion exchangenatural rubbercomposite material
万方数据
维普
