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Synthesis of Polyurethane Foam Prepolymers (Part Two)

This article introduces how to calculate the crosslink density of polyurethane elastomers using prepolymer-based formulas and relevant practical examples.

2025 05 09

Synthesis of Polyurethane Foam Prepolymers (Part One)

This article introduces the theoretical method to calculate isocyanate amounts for synthesizing polyurethane prepolymers with specific NCO content.

2025 05 08

How to Calculate the Required Amount of Isocyanate for Flexible PU Foam?

This article introduces formulas to calculate the required isocyanate amount for flexible polyurethane foam based on polyol type, index, and purity.

2025 05 07

What is Equivalent Weight?

This article introduces the concept of equivalent weight and how to calculate it using molecular weight or hydroxyl value in polyurethane formulations.

2025 05 06

PU Injection Molding Production Line Introduction

This article introduces three types of PU injection molding lines—rotary table, oval track, and fixed mold frame—highlighting layout, capacity, and automation features.

2025 05 05

What is a PU Injection Molding Production Line?

This article introduces PU injection molding production lines, covering various machine forms, molding methods, and mixing head systems based on product needs and production volume.

2025 04 30

Introduction to PU Injection Molding Machine Production Systems – Other Systems

This article introduces other essential systems of polyurethane injection molding machines, including mold temperature control, control systems, and ventilation systems.

2025 04 29

Introduction to Polyurethane Foam Spray Machine--Mixing Systems

This article introduces the mixing systems of polyurethane foam spray machines, covering low and high-pressure types, cleaning methods, and various mixing head designs.

2025 04 28

Introduction to Polyurethane Injection Molding Machine - Metering System

This article introduces the single-stroke plunger metering pump in polyurethane injection molding machines, detailing its function, applications, and importance in precise material handling.

2025 04 25

Introduction to PU Foam Injection Machines – Material Storage, Formulation, and Temperature Control Systems

This article introduces the production process of polyurethane foam injection machines, focusing on material storage, formulation, temperature control, and gas infusion techniques used in foam production.

2025 04 24

Soft Polyurethane Foam Lamination Machines - Bonding Machines

This article introduces Soft Polyurethane Foam Lamination Machines, explaining the scraping and film transfer bonding methods, and their effects on foam/fabric composites.

2025 04 23

Soft Polyurethane Foam Lamination Machines - Flame Compound Machines

This article introduces the flexible PU foam lamination process, focusing on flame compound machines, including roller and flatbed laminating techniques for various applications.

2025 04 22

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Over 20 years of first-hand production and usage experience, our technology development team aims to make every machine exhibit the characteristics of simplicity, labor efficiency, ease of operation, and minimal maintenance.