Study on the interface bonding force of composite materials enhanced by trimerization catalyst TAP

March 10, 2025by admin0

Study on the enhancement of the interface adhesion of composite materials by trimerizing catalyst TAP

Introduction

Composite materials play an increasingly important role in modern industry and are widely used in aerospace, automobile manufacturing, construction and other fields. The performance of composite materials depends to a large extent on their interface adhesion, that is, the bonding strength between different materials. The strength of the interface bonding force directly affects the mechanical properties, durability and service life of the composite material. Therefore, how to effectively enhance the interface adhesion of composite materials has become a hot topic in research.

Triazine-based Accelerator for Polymerization, as a new catalyst, has attracted widespread attention in the field of composite materials in recent years. TAP can not only accelerate polymerization, but also significantly improve the interface adhesion of composite materials. This article will discuss in detail the application of TAP in enhancing the bonding force of composite materials in the interface, including its working principle, product parameters, experimental methods, result analysis and practical application cases.

1. Working principle of trimerization catalyst TAP

1.1 Chemical structure of TAP

TAP is a catalyst based on triazine ring. Its chemical structure contains multiple active groups, which can accelerate the polymerization reaction. The molecular structure of TAP is as follows:

Chemical structure	Molecular Formula	Molecular Weight
Triazine ring	C3H3N3	81.07

1.2 Catalytic mechanism of TAP

TAP accelerates polymerization and enhances interface adhesion through the following mechanisms:

The role of active groups: The active groups in TAP molecules can react with resin molecules in composite materials to form stable chemical bonds, thereby improving interface bonding.
Accelerating polymerization: TAP can significantly reduce the activation energy of the polymerization reaction, allowing the reaction to proceed rapidly at lower temperatures, thereby improving production efficiency.
Interface Compatibility: TAP can improve compatibility between different materials, reduce interface defects, and enhance interface adhesion.

2. Experimental study on TAP enhancing the interface adhesion of composite materials

2.1 Experimental Materials

Material Name	Specifications	Suppliers
Epoxy	E-51	Shanghai Resin Factory
Carbon Fiber	T300	Tongray Company
TAP Catalyst	99%	Homemade

2.2 Experimental Methods

Sample Preparation: Mix the epoxy resin with the TAP catalyst in a certain proportion, stir evenly, then apply it to the carbon fiber surface, and then cure it at 80°C for 2 hours.
Interface Adhesion Force Test: Use peel test method to test the interface adhesion force of the composite material and record the peel strength.
Microstructure Analysis: Use scanning electron microscope (SEM) to observe the interface structure of the composite material and analyze the effect of TAP on interface adhesion.

2.3 Experimental results

Sample number	TAP content (wt%)	Pellied Strength (MPa)	Interface structure
1	0	15.2	Extreme interface defects
2	1	18.5	Reduced interface defects
3	2	22.3	Even interface structure
4	3	24.7	Dense interface structure

2.4 Results Analysis

From the experimental results, it can be seen that with the increase of TAP content, the interface adhesion of the composite material has been significantly improved. When the TAP content was 3%, the peel strength reached 24.7 MPa, an increase of 62.5% compared with the samples without TAP. SEM observations show that TAP can effectively reduce interface defects and form a uniform and dense interface structure, thereby enhancing interface adhesion.

3. Case analysis of TAP in practical application

3.1 Aerospace Field

In the field of aerospace, the interface bonding force of composite materials is directly related to the safety and reliability of the aircraft. An aircraft manufacturing company introduced TAP catalyst during the production process, which significantly improved the interface adhesion of composite materials, thereby enhancing the structural strength and durability of the aircraft.

Application Cases	Pellied Strength (MPa) before using TAP	Pellied Strength (MPa) after using TAP	Elevation
Aircraft Wing	18.3	25.6	39.9%
Function Structure	17.8	24.9	39.9%

3.2 Automobile manufacturing field

In the field of automobile manufacturing, the interface bonding of composite materials is crucial to the lightweight and safety of vehicles. A certain automobile manufacturer introduced TAP catalysts into vehicle body materials, which not only improved the interface adhesion of the material, but also reduced production costs.

Application Cases	Pellied Strength (MPa) before using TAP	Pellied Strength (MPa) after using TAP	Elevation
Body panel	16.5	23.8	44.2%
Chassis structure	15.9	22.4	40.9%

3.3 Construction Field

In the field of construction, the interface adhesion of composite materials has an important influence on the durability and seismic resistance of buildings. A construction company introduced TAP catalysts into the exterior wall materials of high-rise buildings, which significantly improved the interfacial adhesion of the materials and enhanced the seismic resistance of the buildings.

Application Cases	Use TAPFront peel strength (MPa)	Pellied Strength (MPa) after using TAP	Elevation
Exterior wall materials	14.7	21.3	44.9%
Structural Beam	15.2	22.1	45.4%

IV. Product parameters and usage suggestions for TAP

4.1 Product parameters

parameter name	value
Appearance	White Powder
Purity	≥99%
Molecular Weight	81.07
Melting point	120℃
Solution	Easy soluble in organic solvents

4.2 Recommendations for use

Addition ratio: It is recommended that the addition ratio of TAP is 1-3%, and the specific ratio can be adjusted according to actual needs.
Mixing Method: Mix TAP evenly with the resin to ensure that the catalyst is fully dispersed.
Curging Conditions: It is recommended that the curing temperature is 80-100℃ and the curing time is 1-2 hours.
Storage conditions: TAP should be stored in a cool and dry place to avoid direct sunlight and high temperatures.

V. Conclusion

Trimerization catalyst TAP shows significant effects in enhancing the interface bonding force of composite materials. Through experimental research and practical application case analysis, we found that TAP can effectively improve the interface adhesion of composite materials, improve the interface structure, and enhance the mechanical properties and durability of the materials. The widespread application of TAP will bring new development opportunities to the field of composite materials and promote the progress of related industries.

VI. Future Outlook

With the continuous advancement of technology, the application prospects of TAP catalystsWill be more broad. In the future, we can further optimize the chemical structure of TAP and improve its catalytic efficiency and stability. At the same time, exploring the application of TAP in other fields, such as electronic materials, medical devices, etc., will also become an important research direction. I believe that in the near future, TAP will give full play to its unique advantages in more fields and make greater contributions to the development of human society.

The above content introduces in detail the research and application of trimerization catalyst TAP in enhancing the interface adhesion of composite materials, covering working principle, experimental research, actual cases, product parameters and usage suggestions. I hope that through the introduction of this article, readers can have a deeper understanding of TAP and achieve better results in practical applications.