Polyurethane foaming machine is now very popular in some industries. Do you use silicone oil when using polyurethane foaming machine? Today, let me show you the role of silicone oil in polyurethane foaming machine!

The role of silicone oil in polyurethane foaming machine

Using silicone oil in polyurethane foaming machine has the following advantages:

1. Reducing the surface tension is conducive to the preparation of uniform microbubbles and stable pores to reduce gas diffusion.

2. Quickly increasing the viscosity of the material will help to slow down the rapid thinning and foaming of the cell.

3. Increase the strength of cell membrane wall and cell meridians.

4. Reduce the mixing of impurities to avoid the collapse and cavity caused by the local surface tension reduction of the bubble.

5. The foam with larger pore diameter is unstable when the silicone oil dosage is low. When the dosage is high, the pore diameter will be correspondingly smaller and the surface area of foam will be increased. If the dosage is too high, the bubble will collapse when the bubble reaches the high point. The reason is that the bubble wall is too thin and the support strength is insufficient.

In addition, the production process of silicone oil is very complex and strict. Different formulations, processing conditions and production methods make the final products very different. That is to say, different silicone oils may directly affect the quality of polyurethane foaming machine products, including appearance, feel, hardness and tensile strength.

Too much or too little silicone oil will affect the quality of foam:

More dosage: make the elasticity of foam wall increase in the later period, not crack, and the foam hole is thin. Cause closure.

Low dosage: too little silicone oil, insufficient stability of foam, serious coalescence, large and uneven bubbles, and even foam collapse.

Guangdong Fuleite Electromechanical Technology Co., Ltd., located in the industrial zone of No. 39, Tongfu Middle Road, Nantou Town, Zhongshan City, Guangdong Province, is a polyurethane mechanical automation production enterprise integrating research and development, production, sales and after-sales service.

The company's polyurethane related products have been widely used in various industries (thermal insulation/wood imitation/soft foam/cyclopentane), and are highly praised and trusted! The products have been exported to Russia, France, Malaysia, Thailand, Egypt, Algeria, Pakistan and other foreign markets... We always adhere to the strategic development route of product diversification, high-end equipment, brand internationalization and service systematization to let the world know "Fuleite" and "Made in China"!

Guangdong Fuleite sincerely welcomes all enterprise users to visit and guide us. Your choice is our driving force!