A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Synthesis and Property Analysis of a Novel Epoxy Composite Curing Agent Based on Soft Soil Curing
To meet the demand for shore-based engineering, engineering rescue and traffic emergency support in different complex conditions, a new low-temperature fast solidifier for epoxy resin was synthesized by Mannich reaction using thiourea, polyamine, formaldehyde, phenol and benzyl alcohol. The performance of the curing agent was investigated based on raw material ratio, reaction temperature and reaction time. Moreover, the curing time, amine value, viscosity and infrared spectrum were tested. It was compounded with other highly active curing agents and resins. The compressive strength of the cured sea sand was used as the index to determine the formula of a new epoxy composite used for the rapid curing of sand under low temperature or saturated water conditions. The results showed that the optimal synthesis conditions of the curing agent were as follows: the molar ratio of thiourea, diethylenetriamine, formaldehyde, phenol and benzyl alcohol is 1.2: 1.3: 1: 0.4: 1. The addition of a small amount of accelerator DMP-30 could effectively improve the curing reaction speed and reduce the curing time. These epoxy composites could effectively solidify the sea sand and improve its mechanical properties, which provides important utilization value for coastal engineering construction in the cold season or wet rainy season.
Synthesis and Property Analysis of a Novel Epoxy Composite Curing Agent Based on Soft Soil Curing
To meet the demand for shore-based engineering, engineering rescue and traffic emergency support in different complex conditions, a new low-temperature fast solidifier for epoxy resin was synthesized by Mannich reaction using thiourea, polyamine, formaldehyde, phenol and benzyl alcohol. The performance of the curing agent was investigated based on raw material ratio, reaction temperature and reaction time. Moreover, the curing time, amine value, viscosity and infrared spectrum were tested. It was compounded with other highly active curing agents and resins. The compressive strength of the cured sea sand was used as the index to determine the formula of a new epoxy composite used for the rapid curing of sand under low temperature or saturated water conditions. The results showed that the optimal synthesis conditions of the curing agent were as follows: the molar ratio of thiourea, diethylenetriamine, formaldehyde, phenol and benzyl alcohol is 1.2: 1.3: 1: 0.4: 1. The addition of a small amount of accelerator DMP-30 could effectively improve the curing reaction speed and reduce the curing time. These epoxy composites could effectively solidify the sea sand and improve its mechanical properties, which provides important utilization value for coastal engineering construction in the cold season or wet rainy season.
Synthesis and Property Analysis of a Novel Epoxy Composite Curing Agent Based on Soft Soil Curing
Lecture Notes in Civil Engineering
Li, Dayong (editor) / Zhang, Yu (editor) / Cui, Shengchao (author) / Wang, Guangzheng (author) / Liu, Shu (author) / Yan, Xintong (author) / Fan, Ming (author)
2024-12-10
16 pages
Article/Chapter (Book)
Electronic Resource
English
Novel composite excitation lithium slag-based curing agent and soft soil curing method
| European Patent Office | 2024
Soft soil curing agent, method for curing soft soil and application of soft soil curing agent
| European Patent Office | 2022
Sludge soft soil curing agent and sludge soft soil curing method
| European Patent Office | 2022
| European Patent Office | 2024