[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fFU1uF3kRnrQzB24YpYpmMLRJUOYn-nk5E1zVFekEiok":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-11-17 20:24:03",235841315,[8,9,10,11],"The larger the particle size, the more reinforcing it is","The smaller the particle size, the more reinforcing it is","Particle size has no effect on reinforcement","Reinforcement depends only on the color of the black",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_48226280","2.3-fillers","In general, how does the particle size of carbon black affect its reinforcing capability ( )",[21,32,41,44,53,62,71,80,89,97],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],235841313,[25,26,27,28],"Carbon and calcium carbonate","Reinforcing and Semi-reinforcing","Carbon black and White Fillers","Furnace black and Thermal black","What are the two main types of fillers used by the rubber industry ( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],235841314,[36,37,38,39],"To lower cost only","To act as an extender and slow the cure rate","To reinforce and, to some extent, lower compound cost","To accelerate the vulcanization process","What is the primary function of carbon black in a rubber compound ( )",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],235841316,[48,49,50,51],"It decreases","It increases","It is not important","It becomes variable","According to the text of Fillers, what happens to the viscosity of an uncured compound when carbon black particle size decreases (at constant structure) ( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],235841317,[57,58,59,60],"They are harder to disperse and increase hysteresis","They significantly reduce the compound's hardness","They make the compound less abrasive","They accelerate the cure rate too much","What is a major disadvantage of using carbon blacks with very fine particle sizes ( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],235841318,[66,67,68,69],"Clay","Precipitated Calcium Carbonate","Silica","Natural Calcium Carbonate","Which white filler is specifically mentioned as being used to provide reinforcement in non-black compounds ( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],235841319,[75,76,77,78],"Faster cure time and lower heat build-up","Longer cure time and higher heat build-up","Lower abrasion resistance","Easier dispersion","What is a consequence of using silica with a high surface area ( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],235841320,[84,85,86,87],"Zinc Oxide","Stearic Acid","Silane Coupling Agent","Sulfur","What additive is used with silica to improve its reinforcement, abrasion resistance, and reduce heat build-up ( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":95,"source":30,"type":96},[],235841321,[93,94],"正确","错误","Carbon blacks with smaller particle sizes are considered "hard blacks."",3,{"answer":98,"createTime":5,"id":99,"options":100,"question":101,"source":30,"type":96},[],235841322,[93,94],"Increasing the structure of carbon black (at constant particle size) generally leads to an increase in the compound's hardness and modulus"]