Rigid polyurethane foams reinforced with ultrafine powder from automotive shredder residue

2021 ◽  
Author(s):  
Kaixuan Song ◽  
Yijun Li ◽  
Min Nie ◽  
Qi Wang
Keyword(s):  
Polyurethane Foams ◽  
Ultrafine Powder ◽  
Shredder Residue ◽  
Rigid Polyurethane Foams ◽  
Automotive Shredder Residue

Preparation and Characterization of Soybean Oil-based Flame Retardant Rigid Polyurethane Foams Containing Phosphaphenanthrene Groups

2020 ◽  
Vol 17 (10) ◽  
pp. 760-771
Author(s):  
Qirui Gong ◽  
Niangui Wang ◽  
Kaibo Zhang ◽  
Shizhao Huang ◽  
Yuhan Wang
Keyword(s):  
Soybean Oil ◽  
Flame Retardant ◽  
Chemical Structure ◽  
Cell Structure ◽  
Polyurethane Foams ◽  
Limiting Oxygen Index ◽  
Rigid Polyurethane Foams ◽  
Degradation Activation Energy ◽  
Ft Ir

A phosphaphenanthrene groups containing soybean oil based polyol (DSBP) was synthesized by epoxidized soybean oil (ESO) and 9,10-dihydro-oxa-10-phosphaphenanthrene-10-oxide (DOPO). Soybean oil based polyol (HSBP) was synthesized by ESO and H2O. The chemical structure of DSBP and HSBP were characterized with FT-IR and 1H NMR. The corresponding rigid polyurethane foams (RPUFs) were prepared by mixing DSBP with HSBP. The results revealed apparent density and compression strength of RPUFs decreased with increasing the DSBP content. The cell structure of RPUFs was examined by scanning electron microscope (SEM) which displayed the cells as spherical or polyhedral. The thermal degradation and flame retardancy of RPUFs were investigated by thermogravimetric analysis, limiting oxygen index (LOI), and UL 94 vertical burning test. The degradation activation energy (Ea) of first degradation stage reduced from 80.05 kJ/mol to 37.84 kJ/mol with 80 wt% DSBP. The RUPF with 80 wt% DSBP achieved UL94 V-0 rating and LOI 28.3. The results showed that the flame retardant effect was mainly in both gas phase and condensed phase.

Improvement of thermal conductivity of rigid polyurethane foams with aluminum nitride filler

2021 ◽  
pp. 026248932198897
Author(s):  
Serife Akkoyun ◽  
Meral Akkoyun
Keyword(s):  
Thermal Conductivity ◽  
Aluminum Nitride ◽  
Polyurethane Foams ◽  
Thermal Transitions ◽  
Rigid Polyurethane Foams ◽  
Noticeable Increase ◽  
Polyurethane Composite ◽  
Composite Foams ◽  
Step Procedure ◽  
Electrical Conductivities

The aim of this work is the fabrication of electrically insulating composite rigid polyurethane foams with improved thermal conductivity. Therefore, this study is focused on the effect of aluminum nitride (AlN) on the thermal and electrical conductivities of rigid polyurethane foams. For this purpose, aluminum nitride/rigid polyurethane composite foams were prepared using a three-step procedure. The electrical and thermal conductivities of the foams were characterized. The thermal transitions, mechanical properties and morphology of the foams were also examined. The results reveal that AlN induces an increase of the thermal conductivity of rigid polyurethane foam of 24% which seems to be a relatively noticeable increase in polymeric foams. The low electrical conductivity of the foams is preserved.

Morphology and Mechanical Properties of Nylon-1010-filled Rigid Polyurethane Foams

2004 ◽  
Vol 36 (4) ◽  
pp. 333-349 ◽  
Author(s):  
Bo Yin ◽  
Zhong-Ming Li ◽  
Hui Quan ◽  
Ming-Bo Yang ◽  
Qiu-Ming Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Nylon 1010 ◽  
Morphology And Mechanical Properties

scholarly journals Polymers and Environment II. General Purpose Adhesives Prepared from Chemically Decomposed Waste Rigid Polyurethane Foams.

1993 ◽  
Vol 50 (11) ◽  
pp. 847-853 ◽  
Author(s):  
Shuchang XUE ◽  
Feifeng HE ◽  
Mituru OMOTO ◽  
Takao HIDAI ◽  
Yoshio IMAI
Keyword(s):  
General Purpose ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foams

Effects of a novel phosphorus–nitrogen flame retardant on rosin-based rigid polyurethane foams

2015 ◽  
Vol 120 ◽  
pp. 427-434 ◽  
Author(s):  
Meng Zhang ◽  
Zhenyang Luo ◽  
Jinwen Zhang ◽  
Shuigen Chen ◽  
Yonghong Zhou
Keyword(s):  
Flame Retardant ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foams

Recycling of Polyurethane Foams Recovered from Shredder Residue via Glycolysis Process into Polyurethanes

2006 ◽  
Author(s):  
Vahid Sendijarevic ◽  
Ibrahim Sendijarevic ◽  
Kevin Mayne ◽  
Gerald R. Winslow ◽  
Claudia M. Duranceau ◽  
...  
Keyword(s):  
Polyurethane Foams ◽  
Shredder Residue ◽  
Glycolysis Process

Flame Spread Ratings of Rigid Polyurethane Foams by a Modified Tunnel Furnace

1967 ◽  
Vol 3 (12) ◽  
pp. 547-552 ◽  
Author(s):  
Maurice A. Conway ◽  
Ray J. Gabler ◽  
Dale E. Jackson
Keyword(s):  
Flame Spread ◽  
Polyurethane Foams ◽  
Tunnel Furnace ◽  
Rigid Polyurethane Foams
Sign in / Sign up

Export Citation Format

Share Document