The Preparation Of Carbon Black With Furfural Residues And Its Modiifcation Of The Rubber

As natural resources crisis is coming after industrial reform, petroleum, nature gas andcoal bring shortage of resources and environment pollution. Human beings are seekingreproducible substitutes of petrochemical resources. Nowadays, biomass is considered as thebest option and furfural residues are one kind of biomass. Making best use of furfural residueshave a great effect on ecological balance, environmental protection and saving resources. Inlight of the furfural residues composed of cellulose and lignin, new chemical products areexplored and new available methods are studying in the laboratory.First, lignin is extracted from furfural residues through sulfate method (SF) in optimumtemperature and pressure, resulting in highest lignin yield. Then pH2-3of HCl solution isrepeatedly washing precipitation, to separate lignin and to minimize the ash content, the ashcontent bellowing5. Lignin is dried by mini spray dryer in various atomizing flow andlignin content, obtain different size of lignin particle, and char it into carbon black (CB) inhigh temperature. Because of CB pH affecting the curing time of rubber, acid oxidizing isadopted to improve the surface property of CB, though the rubber reinforcing the effect is notobvious. SEM, FTIR, XPS are using for characterizing the lignin, and SEM, oil absorptionvalue, pH value is testing the black carbon particles, and SEM, curing time and mechanicalproperties represent the structure of rubber. Consequently, contrasting with N330, N990reinforcing SB rubber, lignin-based CB is close to N990performance.Moreover, clean furfural residues is directly carbonized in the800℃,1000℃and1300℃for preparation carbon black. At this time, carbon black particles range fromnanometer to20microns, carbon black performance is characterizing through the analysis ofcarbon black yields, ash content, oil absorption value, XRD and SEM. CB is added to SBrubber to research rubber mechanical properties and curing time. Mechanical ball milling, asan available utilization way, is decreasing the size of CB particle. In the experiment, ballmilling speed and milling time affect carbon black particle size, particle size is testing by Zetapotential. The ball-milling CB with N330and N660, in20,30,40,50,60parts by weight,joins SB rubber, SEM, curing time and mechanical property is testing the structure of CB andSB rubber. The ball-milling CB can achieve N660performance. For the compatibility ofcarbon black and SB rubber is poor, KH550and KH570modify surface property of CB. As aresult, modified CB improves compatibility, and at the same time, SB rubber tensile strengthand elongation at break are improved.