scholarly journals Preparation Optimization and Performance Evaluation of Waterborne Epoxy Resin for Roads

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Fei Wang ◽  
Hao Fu ◽  
Guixiang Liu ◽  
Chaohui Wang ◽  
Sixin Yu
Keyword(s):  
Epoxy Resin ◽  
Phase Inversion ◽  
Bending Strength ◽  
Impact Resistance ◽  
Inversion Method ◽  
Bonding Performance ◽  
Waterborne Epoxy ◽  
Bonding Properties ◽  
Waterborne Epoxy Resin ◽  
Phase Inversion Method

To further improve the road performance of waterborne epoxy resin, it was prepared by using the phase inversion method. The tensile properties, bending properties, impact resistance, and storage stability of waterborne epoxy resin were determined. The bonding properties of waterborne epoxy resin were analyzed. At the same time, their properties were compared with those of waterborne epoxy resin prepared by using the curing agent emulsification method. The performance of waterborne epoxy resin was comprehensively evaluated based on multi-index grey target decision model. The results show that the optimum preparation parameters for the preparation of waterborne epoxy resin by phase inversion method are shear time 1.5 h, shear temperature 60°C, and shear rate 1300–1500 r/min. The suitable contents of emulsifier A and B are 18% and 16%, respectively. The tensile strength, elongation at break, bending strength, bending deformation, and impact strength of waterborne epoxy resin prepared by emulsifier A can reach 34.46 MPa, 12.96%, 85.37 MPa, 19.42 mm, and 15.66 kJ/m2, respectively. It shows improved mechanical strength, deformation ability, impact resistance, and bonding performance. The comprehensive properties of waterborne epoxy resin prepared by emulsifier A are the best. It is suggested to use phase inversion method to prepare waterborne epoxy resin for roads.

scholarly journals Effects of phase-inversion waterborne epoxy resin on properties of cold patch waterborne epoxy emulsified asphalt

2020 ◽  
Vol 27 (1) ◽  
Author(s):  
Boming Tang ◽  
Yu Gu ◽  
Jianming Ling ◽  
Lihong He ◽  
Fan Yang
Keyword(s):  
Shear Strength ◽  
Bond Strength ◽  
Epoxy Resin ◽  
Phase Inversion ◽  
Resin Content ◽  
Inversion Method ◽  
Strength Increase ◽  
Waterborne Epoxy ◽  
Waterborne Epoxy Resin ◽  
Emulsified Asphalt

In order to evaluate effects of waterborne epoxy resin prepared by the phase-inversion method (phase-inversion waterborne epoxy resin) on properties of waterborne epoxy emulsified asphalt for cold patch engineering of asphalt pavement, a series of methods for evaluating properties of emulsified asphalt and casting resin were used. Results show that, with an increase in waterborne epoxy resin content, penetration, ductility, surface curing time of waterborne epoxy emulsified asphalt decrease and its adhesion degree, shear strength and bond strength increase. Moreover, its penetration, ductility and adhesion degree remain unchanged when the content of waterborne epoxy resin exceeds 20%, and its shear strength and bond strength increase most remarkably when the content of waterborne epoxy resin increases from 10% to 20%. The test results are explained by the surface fluorescent micromorphology of cured waterborne epoxy emulsified asphalt that, with the increase in waterborne epoxy resin content, epoxy resin particles firstly appear as segregated spots, and then change from spotted status to clustered status, and the epoxy resin phase gradually becomes a continuous phase. In conclusion, phase-inversion waterborne epoxy resin has effects on properties of the cold patch waterborne epoxy emulsified asphalt, and recommended content of waterborne epoxy resin is 20%.

Compatibility of cured phase-inversion waterborne epoxy resin emulsified asphalt

2019 ◽  
Vol 229 ◽  
pp. 116942 ◽  
Author(s):  
Yu Gu ◽  
Boming Tang ◽  
Lihong He ◽  
Fan Yang ◽  
Hao Wang ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Phase Inversion ◽  
Waterborne Epoxy ◽  
Waterborne Epoxy Resin ◽  
Emulsified Asphalt

Investigation and Evaluation of the Emulsified Asphalt with Waterborne Epoxy Resin

2020 ◽  
Vol 842 ◽  
pp. 337-345
Author(s):  
Yan Jun Zhang ◽  
Wen Ming Wu ◽  
Hai Sheng Cao ◽  
Li Dong Zhao ◽  
Yong Li Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Epoxy Resin ◽  
Asphalt Mixture ◽  
Microscopic Analysis ◽  
Splitting Strength ◽  
Waterborne Epoxy ◽  
Bonding Properties ◽  
Road Performance ◽  
Waterborne Epoxy Resin ◽  
Emulsified Asphalt

Compared with SBR latex, waterborne epoxy resin has obvious advantages. The cured epoxy resin emulsified asphalt material has stronger mechanical properties, but it is less used in asphalt modification applications. Aiming at this problem, this paper uses waterborne epoxy resin as the modified material of emulsified asphalt, and carries out performance characterization and road performance evaluation of waterborne epoxy resin modified emulsified asphalt and its mixture under different dosages. Fluorescence microscopic analysis of waterborne epoxy asphalt with a content of 8wt%, 15wt%, 30wt%, and 50wt%, respectively, shows that the resin content should not exceed 30wt% to ensure the performance of asphalt. The bonding properties of SBR modified emulsified asphalt and waterborne epoxy resin modified emulsified asphalt with different dosages at 20 °C and 60 °C were analyzed. The results show that the tensile strength and oblique shear of waterborne epoxy modified emulsified asphalt. The strength is higher than SBR modified emulsified asphalt, and its high temperature resistance is better than SBR modified emulsified asphalt material. The road performance analysis was carried out on the mixture prepared by the aqueous epoxy modified emulsified asphalt with the content of 0wt%, 8wt%, 15wt% and 30wt% respectively. The results show that with the increase of waterborne epoxy content, the Marshall stability, splitting strength and high temperature rutting resistance of the mixture increase more obviously. The freeze-thaw splitting strength of the waterborne epoxy resin mixture is 13% higher than that of the pure emulsified asphalt mixture, and the splitting strength is also significantly improved. Due to the high stiffness of the waterborne epoxy resin after curing, the maximum bending strain of the mixture is reduced, and the recommended dosage is not more than 30% by weight. On the whole, the introduction of waterborne epoxy resin could greatly improve the strength and road performance of the asphalt, and could be used as a proper road repair material.

The Effect of Waterproof Processing Method on Properties of Calcium Silicate Board

2017 ◽  
Vol 863 ◽  
pp. 64-70
Author(s):  
Shi Bing Sun ◽  
Ke Yu Chen ◽  
Hai Yang Zhao ◽  
Ying Liang Tian ◽  
Dong Hua Liu ◽  
...  
Keyword(s):  
Water Absorption ◽  
Epoxy Resin ◽  
Calcium Silicate ◽  
Absorption Rate ◽  
Bending Strength ◽  
Processing Method ◽  
Hot Water ◽  
Freeze Thaw ◽  
Waterborne Epoxy ◽  
Waterborne Epoxy Resin

In this paper, the effect of waterproof processing method on properties of calcium silicate board was studied in view of the requirement of calcium silicate board for building external wall. Experiments adopted waterborne epoxy resin in the test to do waterproof processing by three ways, which means taking the measure of waterproof processing respectively on two surfaces of the sample, on two surfaces and two lateral faces of the sample, and on all the six surfaces of the sample. The results showed that the sample could easily get wet from the side to the center, and it could only get satisfactory results when taking waterproof processing on all the six surfaces of the sample. Meanwhile, the water absorption rate of the sample decreased from 18.4% to 4.4% and its bending strength significantly got improved even after that the sample was treated separately by freeze-thaw cycles, dry-wet circulation, and soaking in hot water. Moreover, the performance of moisture deformation of the sample got reduced.

Preparation and Properties of the Phase Inversion Emulsification of Epoxy Resin

2014 ◽  
Vol 1021 ◽  
pp. 7-10
Author(s):  
Hao Ran Zhou ◽  
Xiao Jiao Fang
Keyword(s):  
Epoxy Resin ◽  
Phase Inversion ◽  
Water Solubility ◽  
Mechanical Stability ◽  
Inversion Process ◽  
Efficient Technology ◽  
Waterborne Epoxy ◽  
Waterborne Epoxy Resin ◽  
Emulsifying Ability ◽  
Phase Inversion Process

The phase inversion process is a kind of efficient technology of emulsifying, it make its emulsifying ability to maximize by the means of control the factors of the HLB, the concentration of emulsifier, the ratio of emulsifier and oil and the temperature of emulsify. In this paper, the epoxy resin E-44 and polyethylene glycol used as materials, potassium persulfate as the catalytic agent, then we obtained the waterborne epoxy resin emulsion. The synthetic conditions of emulsifier, the mechanical stability and water-solubility of the emulsion were researched. Then the optimal amount of the emulsifier was determined and the modified emulsion was characterized, the particle size and viscosity were tested at the same time.

Properties and mechanism of waterborne epoxy resin-SBR composite modified emulsified asphalt

2021 ◽  
Vol 274 ◽  
pp. 122059
Author(s):  
Fuqiang Liu ◽  
Mulian Zheng ◽  
Xianpeng Fan ◽  
Hongyin Li ◽  
Fei Wang ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Waterborne Epoxy ◽  
Waterborne Epoxy Resin ◽  
Emulsified Asphalt

A straight, open and macro-porous fuel electrode-supported protonic ceramic electrochemical cell

2021 ◽  
Author(s):  
Yuxin Pan ◽  
Kai Pei ◽  
Yucun Zhou ◽  
Tong Liu ◽  
Meilin Liu ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Electrochemical Cell ◽  
Inversion Method ◽  
Phase Inversion Method

A straight, open and macro-porous Ni–BaZr0.1Ce0.7Y0.1Yb0.1O3 fuel electrode-supported protonic ceramic electrochemical cell has been fabricated by a modified phase-inversion method.

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