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Formation of Polyurethane Foam

This article discusses the stages of polyurethane foam formation, focusing on how gas concentration changes affect nucleation and foam pore growth. It highlights the role of nucleating agents and additives in achieving uniform foam structure.

2024 06 16

Changes in Viscoelasticity and Elasticity During the Polyurethane Foam Foaming Process

This article explores the viscoelastic changes of polyurethane foam during the foaming process, crucial for understanding foam formation mechanisms and optimizing foam structure and stability.

2024 06 15

Common Test Terms and Definitions for Flexible PU Foam

2024 06 14

How Many Cubic Meters Of Foam Can Be Produced From One Ton Of PU Raw Material?

This article introduces how many cubic meters of foam one ton of PU raw material can produce, based on production method and foam density from rigid to soft foam.

2024 06 13

Some Polyurethane Calculation Formulas

This article explains essential polyurethane formulas used in sponge making machine operations, including hydroxyl value, isocyanate index, and tensile strength.

2024 06 11

Mechanism of Slow Rebound Foam Formation

This article discusses the characteristics, formation mechanism, and applications of slow rebound foams in response to evolving industry needs.

2024 06 07

How to Adjust the Formula for PU Foam Burning Inside?--Part Two

This article discusses preventing sponge core scorching by adjusting formulations, focusing on factors like polyether activity, stone powder addition, flame retardants, and the TDI index.

2024 06 06

How to Adjust the Formula for PU Foam Burning Inside?--Part One

This article explores adjusting PU foam formulations to prevent burning inside, focusing on the key factors: gas volume, foam heat value, and reaction rate. It outlines practical measures for modifying the formula to achieve optimal temperature control within the foam.

2024 06 05

Control of Slow Rebound Sponge Foaming Process

This article details the control methods for the slow rebound sponge foaming process, focusing on equipment, mixing speeds, material temperatures, additive preparation, chain speed, and gas injection

2024 06 04

On-Site Assessment and Control of Slow-Rebound Foam Production

This article discusses on-site assessment and control methods for producing slow-rebound foam, addressing common issues like closed cells, cracking, and collapsing, and providing solutions for maintaining product quality and achieving formulation goals in large-scale production.

2024 06 03

Discussion on Issues of Collapsing, Bursting, and Closed-Cell Formation in Polyurethane Foam

This article discusses the issues of collapsing, bursting, and closed-cell formation in polyurethane foam production, exploring the causes, impacts, and solutions, and emphasizing the importance of understanding and managing these problems for optimal foam quality and safety.

2024 06 01

How to Adjust the Formula for Flexible PU Foam Foaming in Winter?

This article outlines essential adjustments for flexible PU foam foaming in winter, addressing common issues such as streak marks, premature material surge, and slow surface drying. It provides practical solutions to optimize the foaming process and enhance product stability.

2024 05 31

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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.