What are the key factors to consider in the design of two component TGIC polyester resin?

1 Raw material selection and ratio:
The type and ratio of polyols and polyacids: This is the key factor that determines the basic properties of polyester resin. Different combinations of polyols and polyacids will bring different resin properties, such as hardness, flexibility, weather resistance, etc.
Selection of TGIC curing agent: TGIC is used as a curing agent. Its quality and ratio in the design process of two component TGIC polyester resin directly affect the curing speed and performance of the final coating.
2 Acid value control:
Acid value is one of the important factors affecting curing time and viscosity. The appropriate acid value can ensure that the resin has an appropriate reaction speed and cross-linking density during the curing process, thereby obtaining ideal coating performance.
3 Viscosity adjustment:
Viscosity is an important indicator of the fluidity of polyester resin, which directly affects the construction performance and coating quality. During the design process, we need to control the viscosity by adjusting factors such as solvent content and resin molecular weight in the formula according to the specific needs and application scenarios of customers.
4 Curing time and temperature:
Curing time is the time required for the resin to change from liquid to solid, while curing temperature affects the curing speed and quality. Different acid values ​​and ratios will cause changes in curing time and viscosity. Therefore, during the design process, we need to select the appropriate curing time and temperature range based on the customer's production efficiency and equipment conditions.
5 Glass transition temperature (Tg):
Tg is the temperature at which the resin changes from the glass state to the rubber state, and is an important indicator for evaluating the heat resistance and operating temperature range of the resin. During the design process, we need to select the appropriate Tg value based on customer needs and application scenarios.
6 Matching product characteristics with application requirements:
Design two-component TGIC polyester resins with corresponding characteristics according to the specific needs of different application occasions (such as powder coatings, coil coatings, automotive coatings, etc.). For example, for occasions requiring high weather resistance, high gloss and good mechanical properties, polyester resins with these characteristics need to be selected.
7 Environmental protection and sustainability:
As a manufacturer that has long focused on polyester resins for powder coatings, Jiangsu Besta New Materials Co., Ltd. practices the development concept of green environmental protection. During the design process, factors such as the environmental friendliness of raw materials, energy conservation and emission reduction in the production process, and the recyclability of products need to be considered.
8 Quality Management and Certification:
Jiangsu Besta New Materials Co., Ltd. has passed ISO:9001 quality management and ISO:14001 environmental management system certification. During the design process, these quality management system requirements must be strictly followed. At the same time, we also need to pay close attention to customer needs and market trends, and continuously optimize product formulas and production processes to provide higher quality and more personalized products and services.