Polyurethane-graphene nanocomposite foams with enhanced thermal insulating properties

2015 ◽  
Vol 27 (3) ◽  
pp. 303-307 ◽  
Author(s):  
Alessandra Lorenzetti ◽  
Martina Roso ◽  
Andrea Bruschetta ◽  
Carlo Boaretti ◽  
Michele Modesti
Keyword(s):  
Thermal Insulating ◽  
Nanocomposite Foams ◽  
Graphene Nanocomposite ◽  
Insulating Properties

scholarly journals Cellulose Nanostructure-Based Biodegradable Nanocomposite Foams: A Brief Overview on the Recent Advancements and Perspectives

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1270 ◽  
Author(s):  
Motloung ◽  
Ojijo ◽  
Bandyopadhyay ◽  
Ray
Keyword(s):  
Fossil Fuel ◽  
Environmentally Friendly ◽  
Morphological Properties ◽  
Polymer Foams ◽  
Crystallisation Kinetics ◽  
Thermal Insulating ◽  
Nanocomposite Foams ◽  
And Performance ◽  
Insulating Properties ◽  
Cellulose Nanostructure

The interest in designing new environmentally friendly materials has led to the development of biodegradable foams as a potential substitute to most currently used fossil fuel–derived polymer foams. Despite the possibility of developing biodegradable and environmentally friendly polymer foams, the challenge of foaming biopolymers still persists as they have very low melt strength and viscosity as well as low crystallisation kinetics. Studies have shown that the incorporation of cellulose nanostructure (CN) particles into biopolymers can enhance the foamability of these materials. In addition, the final properties and performance of the foamed products can be improved with the addition of these nanoparticles. They not only aid in foamability but also act as nucleating agents by controlling the morphological properties of the foamed material. Here, we provide a critical and accessible overview of the influence of CN particles on the properties of biodegradable foams; in particular, their rheological, thermal, mechanical, and flammability and thermal insulating properties and biodegradability.

scholarly journals Sound-Absorbing and Thermal-Insulating Properties of Cement Composite Based on Recycled Rubber from Waste Tires

2021 ◽  
Vol 11 (6) ◽  
pp. 2725
Author(s):  
Jakub Svoboda ◽  
Tomáš Dvorský ◽  
Vojtěch Václavík ◽  
Jakub Charvát ◽  
Kateřina Máčalová ◽  
...  
Keyword(s):  
Building Materials ◽  
Absorption Capacity ◽  
Acoustic Properties ◽  
Strength Characteristics ◽  
Cement Composites ◽  
Waste Tires ◽  
Natural Aggregate ◽  
Thermal Insulating ◽  
Recycled Rubber ◽  
Insulating Properties

This article describes an experimental study aimed at investigating the potential use of recycled rubber granulate from waste tires of fractions 0/1 and 1/3 mm in cement composites as a 100% replacement for natural aggregates. The use of waste in the development and production of new building materials represents an important aspect for the sustainability and protection of the environment. This article is focused on the sound-absorbing and thermal-insulating properties of experimental cement composites based on recycled rubber from waste tires. The article describes the grain characteristics of recycled rubber, sound absorption capacity, thermal conductivity and strength characteristics. The results of this research show that the total replacement of natural aggregate with recycled rubber in cement composites is possible. Replacing natural aggregate with recycled rubber has significantly improved the thermal and acoustic properties of the prepared cement composites, however, at the same time; there was also the expected decrease in the strength characteristics due to the elasticity of rubber.

Biomimetic structural cellulose nanofiber aerogels with exceptional mechanical, flame-retardant and thermal-insulating properties

2020 ◽  
Vol 389 ◽  
pp. 124449 ◽  
Author(s):  
Dong Wang ◽  
Hongyun Peng ◽  
Bin Yu ◽  
Keqing Zhou ◽  
Haifeng Pan ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Cellulose Nanofiber ◽  
Thermal Insulating ◽  
Insulating Properties
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