How to use polyurethane hard foam catalyst PC-5 to optimize the production process of rigid foam products: from raw material selection to finished product inspection

Use polyurethane hard foam catalyst PC-5 to optimize the production process of rigid foam products

Catalog

Introduction
Overview of PC-5 for polyurethane hard bubble catalyst
Raw Material Selection
Production process optimization
Finished product inspection
Conclusion

1. Introduction

Polyurethane hard foam materials are widely used in construction, cold chain, automobile, home appliances and other fields due to their excellent thermal insulation performance, lightweight, high strength and good processing performance. However, the performance and productivity of rigid foam products depend heavily on the choice and use of catalysts. As a highly efficient catalyst, polyurethane hard foam catalyst PC-5 can significantly optimize the production process of rigid foam products. This article will introduce in detail how to use PC-5 to optimize each link from raw material selection to finished product inspection.

2. Overview of PC-5 for polyurethane hard bubble catalyst

2.1 Product parameters

parameter name	parameter value
Chemical Name	Polyurethane hard bubble catalyst PC-5
Appearance	Colorless to light yellow liquid
Density (20°C)	1.05 g/cm³
Viscosity (25°C)	50-100 mPa·s
Flashpoint	>100°C
Solution	Easy soluble in water and alcohols
Storage Conditions	Cool and dry places to avoid direct sunlight

2.2 Main functions

Accelerating reaction: PC-5 can significantly accelerate the polyurethane foaming reaction and shorten the production cycle.
Improve the foam structure: By optimizing the reaction rate, PC-5 helps to form a uniform and fine foam structure, improving the mechanical and thermal insulation properties of the product.
Improving Production Efficiency: Reduce waiting time in the production process and improve productionefficiency.

3. Raw material selection

3.1 Polyol

Polyols are one of the main raw materials for polyurethane rigid foam, and their choice directly affects the performance of the product. Commonly used polyols include polyether polyols and polyester polyols.

Polyol Type	Features	Applicable scenarios
Polyether polyol	Low viscosity, high reactivity	Building insulation, cold chain
Polyester polyol	Good mechanical properties and high heat resistance	Car interior, home appliances

3.2 Isocyanate

Isocyanate is another main raw material for polyurethane rigid foam. Commonly used isocyanates include MDI (diphenylmethane diisocyanate) and TDI (diisocyanate).

Isocyanate Type	Features	Applicable scenarios
MDI	High reaction activity and high foam strength	Building insulation, cold chain
TDI	Moderate reaction activity and good foam elasticity	Car interior, home appliances

3.3 Foaming agent

The selection of foaming agent has an important influence on the density and thermal insulation properties of foam products. Commonly used foaming agents include physical foaming agents and chemical foaming agents.

Frothing agent type	Features	Applicable scenarios
Physical foaming agent	Environmentally friendly, high foaming efficiency	Building insulation, cold chain
Chemical foaming agent	Good foaming effect and low cost	Car interior, home appliances

3.4 Catalyst

The selection of catalyst is crucial to the production process and product performance of polyurethane rigid foam. PC-5 as oneA highly efficient catalyst can significantly optimize the production process.

Catalytic Type	Features	Applicable scenarios
PC-5	High reaction activity and uniform foam structure	Building insulation, cold chain, automotive interior, home appliances

4. Production process optimization

4.1 Formula Design

Reasonable formula design is the basis for optimizing production processes. Here is an example of a typical polyurethane hard foam formula:

Raw Materials	Proportion (%)
Polyol	60-70
Isocyanate	30-40
Frothing agent	5-10
Catalytic PC-5	0.5-1.5
Other additives	1-2

4.2 Mixing and foaming

Mixing and foaming are key steps in the production of polyurethane rigid foam. The use of PC-5 catalyst can significantly improve mixing efficiency and foaming quality.

Raw Material Mixing: Mix the polyol, isocyanate, foaming agent, catalyst PC-5 and other additives in proportion and stir evenly.
Foaming reaction: Inject the mixed raw materials into the mold or spray them on the substrate to perform the foaming reaction. PC-5 catalyst can accelerate reaction and shorten foaming time.
Currect: After foaming is completed, the product is cured in the mold to form a stable foam structure.

4.3 Temperature control

Temperature control has an important impact on the production process and product performance of polyurethane rigid foam. When using PC-5 catalyst, it is recommended to control the following temperature parameters:

Process Stage	Temperature range (°C)
Raw Material Mix	20-30
Foaming Reaction	30-50
Cure	50-80

4.4 Pressure Control

Pressure control has an important influence on the density and structural uniformity of foam products. When using PC-5 catalyst, it is recommended to control the following pressure parameters:

Process Stage	Pressure Range (MPa)
Raw Material Mix	0.1-0.3
Foaming Reaction	0.2-0.5
Cure	0.1-0.3

5. Finished product inspection

5.1 Appearance Inspection

Appearance inspection is the first step in finished product inspection, mainly checking the surface quality, color and size of the product.

Inspection items	Standard Requirements
Surface Quality	No bubbles, cracks, depressions
Color	Alternative
Size	Meet the design requirements

5.2 Density Test

Density is an important indicator for measuring the performance of polyurethane hard foam products. Products produced using PC-5 catalysts should have a uniform density distribution.

Inspection items	Standard Requirements (kg/m³)
Density	30-50

5.3 Mechanical performance inspection

Mechanical performance inspection includes indicators such as compressive strength, tensile strength and flexural strength.

Inspection items	Standard Requirements (MPa)
Compressive Strength	0.2-0.5
Tension Strength	0.1-0.3
Bending Strength	0.3-0.6

5.4 Thermal insulation performance inspection

Thermal insulation performance is an important performance indicator of polyurethane rigid foam products. Products produced using PC-5 catalysts should have good thermal insulation properties.

Inspection items	Standard Requirements (W/m·K)
Thermal conductivity	0.02-0.03

5.5 Durability Inspection

Durability inspection includes indicators such as heat resistance, moisture resistance and aging resistance.

Inspection items	Standard Requirements
Heat resistance	No deformation at 80°C
Wett resistance	No deformation under 95% RH
Aging resistance	No color change for 1000 hours

6. Conclusion

By rationally selecting raw materials, optimizing production processes and strict finished product inspection, the use of polyurethane hard bubble catalyst PC-5 can significantly improve the performance and production efficiency of rigid foam products. PC-5 catalysts perform well in accelerating reactions, improving foam structure and improving production efficiency. They are suitable for building insulation, cold chain, automotive interiors and home appliances. I hope that the introduction of this article can provide reference and help for the optimization of production process in related industries.

How to use polyurethane hard foam catalyst PC-5 to optimize the production process of rigid foam products: from raw material selection to finished product inspection

Use polyurethane hard foam catalyst PC-5 to optimize the production process of rigid foam products

Catalog

1. Introduction