The influence of blowing agents type on foaming process and properties of rigid polyurethane foams

Polimery ◽  
2018 ◽  
Vol 63 (10) ◽  
pp. 672-678 ◽  
Author(s):  
Maria Kuranska ◽  
Aleksander Prociak ◽  
Slawomir Michalowski ◽  
Karolina Zawadzinska
Keyword(s):  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agents ◽  
Foaming Process

Rigid polyurethane foams moulded with new generation blowing agents

Polimery ◽  
2003 ◽  
Vol 48 (07/08) ◽  
pp. 565-567
Author(s):  
ALEKSANDER PROCIAK ◽  
MARCIN FIGURA
Keyword(s):  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agents ◽  
New Generation

Preparation and Characterization of Excellent Flame Retarded Rigid Polyurethane Foams

2011 ◽  
Vol 374-377 ◽  
pp. 1563-1566
Author(s):  
An Zhen Zhang ◽  
Yi He Zhang
Keyword(s):  
Flame Retardant ◽  
Flame Retardants ◽  
Polyurethane Foams ◽  
Expandable Graphite ◽  
Dimethyl Methylphosphonate ◽  
Limiting Oxygen Index ◽  
Rigid Polyurethane Foams ◽  
Foaming Process ◽  
Flame Retarded

Rigid polyurethane foams were excellent thermal insulation materials with widely used, which was highly flammable at the same time. In order to obtain safe application, flame retarded polyurethane foams were needed. In this paper, series flame retarded rigid polyurethane foams were prepared with loading different flame retardants such as ammonium polyphosphate, expandable graphite, red phosphorus, Tri (2-chloroethyl) phosphate and dimethyl methylphosphonate. The effects of flame retardants on the foaming-process and flame retardant property of the rigid polyurethane foams were investigated by otary viscometer and limiting oxygen index. The results showed that the combination of solid and liquid flame retardants was necessary to improve the flame retardant and different flame retardants played synergistic roles in rigid polyurethane foams. The limiting oxygen indexes of the foams could be up to 30wt% and 29.6% with 25wt% solid flame retardants and 10wt% liquid retardants, respectively.

scholarly journals Properties of Rigid Polyurethane Foams with Blowing Agents and Catalysts

2004 ◽  
Vol 36 (5) ◽  
pp. 368-373 ◽  
Author(s):  
Kun Hyung Choe ◽  
Dong Soo Lee ◽  
Won Jin Seo ◽  
Woo Nyon Kim
Keyword(s):  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agents

Influence of silica aerogel particles on the foaming process and cellular structure of rigid polyurethane foams

2020 ◽  
Vol 135 ◽  
pp. 109884
Author(s):  
Paula Cimavilla-Román ◽  
Saul Pérez-Tamarit ◽  
Mercedes Santiago-Calvo ◽  
Miguel Ángel Rodríguez-Pérez
Keyword(s):  
Silica Aerogel ◽  
Cellular Structure ◽  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Foaming Process

Permeation Studies of CFC Alternative Blowing Agents for Rigid Polyurethane Foams

1994 ◽  
Vol 30 (2) ◽  
pp. 126-143 ◽  
Author(s):  
P.L. Bartlett ◽  
J.A. Creazzo ◽  
H.S. Hammel
Keyword(s):  
Polyurethane Foams ◽  
Rigid Polyurethane Foams ◽  
Blowing Agents ◽  
Permeation Studies

Thermal degradation behavior of rigid polyurethane foams prepared with different fire retardant concentrations and blowing agents

Polymer ◽  
2002 ◽  
Vol 43 (24) ◽  
pp. 6471-6479 ◽  
Author(s):  
Zhong Tang ◽  
M.Mercedes Maroto-Valer ◽  
John M Andrésen ◽  
John W Miller ◽  
Mark L Listemann ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
Fire Retardant ◽  
Polyurethane Foams ◽  
Degradation Behavior ◽  
Rigid Polyurethane Foams ◽  
Blowing Agents ◽  
Thermal Degradation Behavior

scholarly journals Bio-Based Rigid Polyurethane Foams Modified with Phosphorus Flame Retardants

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 102
Author(s):  
Marcin Zemła ◽  
Aleksander Prociak ◽  
Sławomir Michałowski
Keyword(s):  
Rapeseed Oil ◽  
Flame Retardants ◽  
Thermal Conductivity Coefficient ◽  
Oxygen Index ◽  
Cell Structure ◽  
Polyurethane Foams ◽  
Triethyl Phosphate ◽  
Rigid Polyurethane Foams ◽  
Foaming Process ◽  
Cone Calorimeter Test

Rigid polyurethane foams (RPURF) containing a bio-polyol from rapeseed oil and different phosphorus-based flame retardants were obtained. Triethyl phosphate (TEP), dimethyl propane phosphonate (DMPP) and cyclic phosphonates Addforce CT 901 (20 parts per hundred polyol by weight) were used in the synthesis of RPURF. The influence of used flame retardants on foaming process, cell structure, and physical–mechanical properties as well as flammability of RPURF were examined. The addition of flame retardants influenced the parameters of the cellular structure and decreased compressive strength. All obtained foam materials had a low thermal conductivity coefficient, which allows them to be used as thermal insulation. The research results of bio-based RPURF were compared with foams obtained without bio-polyol. All modified materials had an oxygen index above 21 vol%; therefore, they can be classified as self-extinguishing materials. The analysis of parameters obtained after the cone calorimeter test showed that the modified RPURF have a lower tendency to fire development compared to the reference foams, which was particularly noticeable for the materials with the addition of DMPP.

Effect of auxiliary blowing agents on properties of rigid polyurethane foams based on liquefied products from peanut shell

2017 ◽  
Vol 134 (48) ◽  
pp. 45582 ◽  
Author(s):  
Guangyu Zhang ◽  
Qinqin Zhang ◽  
Yumin Wu ◽  
Huan Zhang ◽  
Jingqiang Cao ◽  
...  
Keyword(s):  
Polyurethane Foams ◽  
Peanut Shell ◽  
Rigid Polyurethane Foams ◽  
Blowing Agents
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