<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This paper investigates the reinforcement of rigid polyurethane foams with microcrystalline cellulose to improve their mechanical and thermal properties. In this work, microcrystalline cellulose was added to polyol and was dispersed using two methods: calendering and ultrasounds. As a result of the study, it was found that the addition of micro cellulose to the polyol mixture used for the synthesis of polyurethane foam changes the properties of the final product. A crucial aspect is how it is added to the mixture. When adding microcrystalline cellulose particles, better results were obtained for particles dispersed using ultrasound. The most beneficial changes were obtained for the sample with 2php cellulose. The most significant reduction in average pore size was shown, which has a beneficial effect on the insulating properties of polyurethane foam. In addition, an increase in mechanical properties was also noted. Both properties are highly desirable in many applications.</p>
</abstract>

This paper investigates the reinforcement of rigid polyurethane foams with microcrystalline cellulose to improve their mechanical and thermal properties. In this work, microcrystalline cellulose was added to polyol and was dispersed using two methods: calendering and ultrasounds. As a result of the study, it was found that the addition of micro cellulose to the polyol mixture used for the synthesis of polyurethane foam changes the properties of the final product. A crucial aspect is how it is added to the mixture. When adding microcrystalline cellulose particles, better results were obtained for particles dispersed using ultrasound. The most beneficial changes were obtained for the sample with 2php cellulose. The most significant reduction in average pore size was shown, which has a beneficial effect on the insulating properties of polyurethane foam. In addition, an increase in mechanical properties was also noted. Both properties are highly desirable in many applications.

Influence of the Microcrystalline Cellulose Dispersion Method on the Structure and Properties of Rigid Polyurethane Foam Composites

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This paper investigates the reinforcement of rigid polyurethane foams with microcrystalline cellulose to improve their mechanical and thermal properties. In...

Influence of the Microcrystalline Cellulose Dispersion Method on the Structure and Properties of Rigid Polyurethane Foam Composites

Published Online: Dec 20, 2023

Page range: 5 - 27

Received: Sep 09, 2023

Accepted: Oct 31, 2023

DOI: https://doi.org/10.2478/adms-2023-0019

Keywords
rigid foam, cellulose, polyurethane, insulation composites, dispersion methods

© 2023 Grzegorz Węgrzyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Influence of the Microcrystalline Cellulose Dispersion Method on the Structure and Properties of Rigid Polyurethane Foam Composites

Published Online: Dec 20, 2023

Page range: 5 - 27

Received: Sep 09, 2023

Accepted: Oct 31, 2023

DOI: https://doi.org/10.2478/adms-2023-0019

Keywordsrigid foam, cellulose, polyurethane, insulation composites, dispersion methods

© 2023 Grzegorz Węgrzyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
rigid foam, cellulose, polyurethane, insulation composites, dispersion methods