A. S. Lukin, R. G. Zhitov, V. V. Bayandin, N. S. Shaglaeva
{"title":"Study into the effect of plasticizer nature on the properties of polymer-bitumen compositions via fluorescence microscopy","authors":"A. S. Lukin, R. G. Zhitov, V. V. Bayandin, N. S. Shaglaeva","doi":"10.21285/2227-2925-2022-12-3-471-478","DOIUrl":null,"url":null,"abstract":"The paper studies how the nature of the plasticizer affects the properties of polymer-bitumen compositions using the fluorescence microscopy. The current petroleum road bitumen used for the construction of road, bridge, and airfield pavements does not meet the requirements for cracking/heat resistance, elasticity, and adhesion to the mineral material surface. Pavement performance characteristics can be significantly improved by introducing thermoplastic elastomers, plasticizers, and surfactants into the composition of petroleum road bitumen. The best results were obtained when using a block copolymer of styrene and butadiene, industrial oil, and cationic surfactant on the basis of polyaminoamides and polyaminoimidazolines. The choice of industrial oil as a plasticizer is attributed to its good compatibility with bitumen and polymer, as well as its high flash point (200 °С). The content of paraffin-naphthenic hydrocarbons in industrial oil is over 70%. Although industrial oil is produced in large quantities, an acute shortage of this petrochemical product is observed due to its wide application; thus, intensive studies are underway to replace industrial oil in the composition of the polymer-bitumen binder. It is proposed to use heavy gas oil produced via catalytic cracking and delayed coking, heavy pyrolysis tar, solvent-extracted oil, and tall oil as plasticizers in the creation of the polymer-bitumen binder. In this connection, the effect of proposed plasticizers on the colloidal structure of the polymer-bitumen binder was studied using the method of fluorescence microscopy. Initial polymer-bitumen binders were produced at ANHK (Angarsk) according to GOST R 52056-2003 Polymer-Bitumen Road Binders Based on Styrene-Butadiene-Styrene-Type Block Polymers. The group composition of the plasticizers under study was determined. It was shown that in order to obtain a polymer-bitumen binder resistant to stratification, plasticizers having a content of aromatic compounds of over 60% are required.","PeriodicalId":20601,"journal":{"name":"PROCEEDINGS OF UNIVERSITIES APPLIED CHEMISTRY AND BIOTECHNOLOGY","volume":"41 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"PROCEEDINGS OF UNIVERSITIES APPLIED CHEMISTRY AND BIOTECHNOLOGY","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21285/2227-2925-2022-12-3-471-478","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The paper studies how the nature of the plasticizer affects the properties of polymer-bitumen compositions using the fluorescence microscopy. The current petroleum road bitumen used for the construction of road, bridge, and airfield pavements does not meet the requirements for cracking/heat resistance, elasticity, and adhesion to the mineral material surface. Pavement performance characteristics can be significantly improved by introducing thermoplastic elastomers, plasticizers, and surfactants into the composition of petroleum road bitumen. The best results were obtained when using a block copolymer of styrene and butadiene, industrial oil, and cationic surfactant on the basis of polyaminoamides and polyaminoimidazolines. The choice of industrial oil as a plasticizer is attributed to its good compatibility with bitumen and polymer, as well as its high flash point (200 °С). The content of paraffin-naphthenic hydrocarbons in industrial oil is over 70%. Although industrial oil is produced in large quantities, an acute shortage of this petrochemical product is observed due to its wide application; thus, intensive studies are underway to replace industrial oil in the composition of the polymer-bitumen binder. It is proposed to use heavy gas oil produced via catalytic cracking and delayed coking, heavy pyrolysis tar, solvent-extracted oil, and tall oil as plasticizers in the creation of the polymer-bitumen binder. In this connection, the effect of proposed plasticizers on the colloidal structure of the polymer-bitumen binder was studied using the method of fluorescence microscopy. Initial polymer-bitumen binders were produced at ANHK (Angarsk) according to GOST R 52056-2003 Polymer-Bitumen Road Binders Based on Styrene-Butadiene-Styrene-Type Block Polymers. The group composition of the plasticizers under study was determined. It was shown that in order to obtain a polymer-bitumen binder resistant to stratification, plasticizers having a content of aromatic compounds of over 60% are required.
利用荧光显微镜研究了增塑剂的性质对聚合物沥青组成物性能的影响。目前用于道路、桥梁和机场路面建设的石油公路沥青,不符合抗裂/耐热性、弹性和与矿物材料表面的附着力要求。通过在石油沥青中引入热塑性弹性体、增塑剂和表面活性剂,可以显著改善路面性能。以聚酰胺和聚胺咪唑啉为基础,用苯乙烯-丁二烯嵌段共聚物、工业油和阳离子表面活性剂进行改性,效果最好。选择工业油作为增塑剂是由于它与沥青和聚合物的良好相容性,以及它的高闪点(200°С)。工业油中石蜡环烃的含量在70%以上。虽然工业用油产量很大,但由于其广泛应用,这种石化产品严重短缺;因此,人们正在深入研究如何在聚合物-沥青粘结剂的组成中取代工业用油。建议使用催化裂化和延迟焦化生产的重质气油、重质热解焦油、溶剂萃取油和塔尔油作为增塑剂制备聚合物-沥青粘结剂。在这方面,采用荧光显微镜的方法研究了增塑剂对聚合物-沥青粘合剂胶体结构的影响。根据GOST R 52056-2003基于苯乙烯-丁二烯-苯乙烯型嵌段聚合物的聚合物-沥青道路粘合剂,ANHK (Angarsk)生产了最初的聚合物-沥青粘合剂。测定了所研究的增塑剂的基团组成。结果表明,为了获得抗分层的聚合物-沥青粘结剂,需要芳香族化合物含量超过60%的增塑剂。