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Lang Y, Zhou J, Sun J, Liang H, Zhang K, Wang C, Liu Y, Geng T. Effect of Different Ethylene Oxide Addition Numbers on the Performance of Polyoxyethylene Tallow Amine as a Pesticide Emulsifier. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1503-1514. [PMID: 38156944 DOI: 10.1021/acs.langmuir.3c03269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Surfactant reduces the surface tension of liquids, resulting in improved emulsion stability, and there is great interest in pesticide additives. Ethoxylate is often used as a pesticide emulsifier. However, the degree of ethoxylation and the existence of dioxane byproducts can significantly affect the performance of emulsifiers. Here, a series of polyoxyethylene tallow amines with the addition of different numbers of ethylene oxide (EO) were synthesized and characterized. Their physical and chemical performances were measured. The ability of POEA as a surfactant to reduce water surface tension and the surface adsorption of molecules were assessed based on the static and dynamic surface tensions. The results show that the surfactant molecules preferentially form a saturated adsorption layer in solution, and the mixed-diffusion-kinetics mechanism dominates the adsorption process. With the increase of the EO addition number, the emulsifying property of POEA increases, while the wetting property gradually decreases and the contact angle increases. These results can provide a basis for the selection of pesticide additives. At the same time, the mechanism of removing dioxane by ethoxylate is described, and a simple and low-consumption method is put forward to reduce the dioxane content. It provides a new idea for the removal of dioxane.
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Affiliation(s)
- Yu Lang
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
| | - Jingjie Zhou
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
| | - Jinyuan Sun
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
| | - Huibin Liang
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
| | - Ke Zhang
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
| | - Chunyu Wang
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
| | - Yuqi Liu
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
| | - Tao Geng
- China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, PR China
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Song L, Cong F, Wang W, Ren J, Chi W, Yang B, Zhang Q, Li Y, Li X, Wang Y. The Effect of Functionalized SEBS on the Properties of PP/SEBS Blends. Polymers (Basel) 2023; 15:3696. [PMID: 37765550 PMCID: PMC10535659 DOI: 10.3390/polym15183696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Styrene (St) was used as comonomer and glycidyl methacrylate (GMA) as grafting monomer to prepare SEBS-g-(GMA-co-St) graft copolymers via melt grafting. Then, the graft copolymers were employed as a compatibilizer for melt blending polypropylene (PP) and hydrogenated styrene-butadiene-styrene (SEBS) triblock copolymers. The effects of the amount of GMA in the graft copolymers on thermal properties, rheology, crystallization, optical and mechanical properties, and microstructure of the blends were investigated. The results show that GMA and St were successfully grafted onto SEBS. The GMA amount in the graft copolymer significantly influenced the comprehensive properties of PP/SEBS/SEBS-g-(GMA-co-St) blends. The epoxy groups of GMA reacted with PP and SEBS, forming interfacial chemical bonds, thereby enhancing the compatibility between PP and SEBS to varying extents. After introducing SEBS-g-(GMA-co-St) into PP/SEBS blends, crystallinity decreased, crystal size increased while transmittance remained above 91% with rising GMA amount in the graft copolymers, indicating excellent optical properties. Notched impact strength and elongation at break of the blends showed a trend of first increasing and then decreasing with increased amounts of GMA in the graft copolymers. When the amount of GMA in the graft copolymers was 3 wt%, the blends exhibited optimal toughness with notched impact strength and elongation at break of 30,165.82 J/m2 and 1445.40%, respectively. This was attributed to the tightest dispersion interface adhesion and maximum matrix plastic deformation, consistent with the mechanical performance results.
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Affiliation(s)
- Lixin Song
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Fei Cong
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Wei Wang
- BatteroTech Co., Ltd., Shanghai 201417, China
| | - Jiannan Ren
- AVIC Shenyang Aircraft Corporation, Shenyang 110850, China
| | - Weihan Chi
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Bing Yang
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Qian Zhang
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yongchao Li
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Xianliang Li
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yuanxia Wang
- Polymer High Functional Film Engineering Research Center of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
- College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
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Wei L, Zhang L, Guo S, Jia X, Zhang Y, Sun C, Dai X. Synthesis and Study of a New Type of Fluorinated Polyether Demulsifier for Heavy Oil Emulsion Demulsification. ACS OMEGA 2021; 6:25518-25528. [PMID: 34632209 PMCID: PMC8495885 DOI: 10.1021/acsomega.1c03530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
To solve the problem of heavy oil demulsification difficulties in Liaohe Oilfield, phenolamine resin initiator was synthesized from p-trifluoromethyl phenol, and then FB series fluorinated polyether demulsifiers were synthesized by block polymerization using ethylene oxide (EO) and propylene oxide (PO) as raw materials. The demulsifiers were characterized by infrared spectroscopy, cloud point, hydrophilic-lipophilic balance (HLB) value, and surface tension. The demulsifying and dehydrating properties were tested by demulsifying and dehydrating experiments, the demulsification mechanism was analyzed by the microscopic demulsification process test, and the influence of demulsifier addition and demulsifying temperature on demulsifying performance was also studied. The results showed that under the condition of the optimum demulsification temperature of 60 °C and the optimum demulsifier dosage of 100 mg/L, the water removal (%) of fluorinated polyether demulsifier of FB 4 was the highest, and the overall water removal (%) of 50 mL crude oil emulsion in Liaohe Oilfield reached 90.33% within 2 h, which was better than the current demulsifier used in Liaohe crude oil.
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Affiliation(s)
- Lixin Wei
- School
of Petroleum Engineering, Northeast Petroleum
University, Daqing 163318, China
| | - Lin Zhang
- School
of Petroleum Engineering, Northeast Petroleum
University, Daqing 163318, China
| | - Shijun Guo
- School
of Petroleum Engineering, Northeast Petroleum
University, Daqing 163318, China
| | - Xinlei Jia
- School
of Petroleum Engineering, Northeast Petroleum
University, Daqing 163318, China
| | - Yu Zhang
- School
of Petroleum Engineering, Northeast Petroleum
University, Daqing 163318, China
| | - Chao Sun
- Pipechina
North Pipeline Company, Langfang 065000, China
| | - Xuanrui Dai
- School
of Petroleum Engineering, Northeast Petroleum
University, Daqing 163318, China
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Guo Z, Xu Z, Dong Z, Zhang M, Chi Z, Li M, Shang L, Ao Y. High‐performance thermosets with tailored properties derived from
multi‐arm
stared vanillin and carbon fiber composites. J Appl Polym Sci 2021. [DOI: 10.1002/app.50588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zongwei Guo
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
| | - Zice Xu
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
| | - Zhiqiang Dong
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
| | - Mengjie Zhang
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
| | - Zhiyuan Chi
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
| | - Ming Li
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
| | - Lei Shang
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
| | - Yuhui Ao
- College of Chemistry and Life Science, Jilin Province Key Laboratory of Carbon Fiber Development and Application Changchun University of Technology Changchun Jilin China
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