The unique contribution of amine catalyst CS90 in thermal insulation materials in nuclear energy facilities: the principle of safety first

Introduction

Nuclear energy, as an efficient and clean energy form, occupies an important position in the global energy structure. However, safety issues at nuclear energy facilities have always been the focus of public attention. The insulation materials of nuclear energy facilities play a crucial role in ensuring the safe operation of the facilities. As an efficient catalyst, the amine catalyst CS90 is used in thermal insulation materials in nuclear energy facilities, not only improves the performance of the material, but also significantly enhances the safety of the facility. This article will discuss in detail the unique contribution of amine catalyst CS90 in nuclear energy facilities insulating materials, and explain how it embodies the principle of "safety first".

1. The importance of thermal insulation materials for nuclear energy facilities

1.1 Safety requirements for nuclear energy facilities

The safety requirements of nuclear energy facilities are extremely high, and any minor mistakes can lead to serious consequences. As an important part of nuclear energy facilities, insulation materials include:

• Heat insulation: Prevent heat loss and ensure the stability of the internal temperature of the facility.
• Fireproof and flame retardant: prevent the fire from spreading in high temperatures or fire situations.
• Radiation Resistance: Maintain the stability and functionality of the material in a nuclear radiation environment.
• Corrosion resistance: Resist the corrosion of chemical substances and extend the service life of the material.

1.2 Performance requirements of thermal insulation materials

In order to meet the high safety standards of nuclear energy facilities, insulation materials need to have the following properties:

• High thermal conductivity: Ensure that heat can be transferred quickly and avoid local overheating.
• Low thermal expansion coefficient: When temperature changes, the material size is stable to avoid cracking or deformation.
• High strength: withstand mechanical stress during facility operation.
• Good chemical stability: Resist the erosion of chemical substances and maintain the long-term stability of the material.

2. Overview of amine catalyst CS90

2.1 Basic characteristics of amine catalyst CS90

Amine catalyst CS90 is a highly efficient organic amine catalyst, widely used in the preparation of polyurethane foam materials. Its main characteristics include:

• High-efficiency catalysis: significantIncrease the reaction rate and shorten the production cycle.
• Low Volatility: Reduce harmful gas emissions during production and improve the working environment.
• Good compatibility: Compatible with a variety of raw materials and suitable for a variety of formulas.
• Environmentality: Comply with environmental protection standards and reduce environmental pollution.

2.2 Technical parameters of amine catalyst CS90

III. Application of amine catalyst CS90 in thermal insulation materials for nuclear energy facilities

3.1 Improve the thermal insulation performance of insulation materials

The application of amine catalyst CS90 in polyurethane foam materials has significantly improved the thermal insulation performance of the material. By optimizing the closed cell structure of the foam, the heat transfer path is reduced, thereby improving the thermal insulation effect of the material. Specifically manifested as:

• Reduce thermal conductivity: By controlling the density and pore size of the foam, the thermal conductivity is reduced to below 0.02 W/(m·K).
• Improve the closed porosity rate: The closed porosity rate can reach more than 95%, effectively reducing thermal convection and thermal radiation.

3.2 Enhance the fire resistance of insulation materials

The nuclear energy facilities have extremely high requirements for fire resistance. The amine catalyst CS90 enhances the fire resistance of insulation materials through the following methods:

• Promote the fraction of flame retardantSpread: Make the flame retardant evenly distributed in the foam to improve the flame retardant effect of the material.
• Improve the stability of the carbonized layer of the material: At high temperatures, a stable carbonized layer is formed on the surface of the material to prevent the flame from spreading.