Flame‐retardant and mechanical properties of rigid polyurethane

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Flame Retardancy and Physical Properties of Rigid ...

Flame Retardancy and Physical Properties of Rigid Polyurethane Foam Containing Phosphorus Flame Retardants. ... Effect of Flame Retardant DMMP on the Mechanical Properties of Polyurethane Elastomer[J ... (Lanzhou Huayu Innovation Technologies Co. Ltd,730000);Study on Flame-retardant of Polyurethane Rigid Foam System by Using ...

Inherently flame-retardant rigid polyurethane foams with ...

Inherently flame-retardant rigid polyurethane foams with excellent thermal insulation and mechanical properties Article in Polymer 153 · August 2018 with 44 Reads DOI: 10.1016/j.polymer.2018.08.068

Functionalized lignin for halogen-free flame retardant ...

Read "Functionalized lignin for halogen-free flame retardant rigid polyurethane foam: preparation, thermal stability, fire performance and mechanical properties, Journal of Polymer Research" on DeepDyve, the largest online rental service for scholarly research with thousands of

Halogen-Free Flame-Retardant Flexible Polyurethane Foam ...

Chen, Chen, Tan, Huang, Wang, Chen, and Wang Abstract: A halogen-free phosphorus-containing triol named phosphoryltrimethanol (PTMA) was synthesized and used as a cross-linking agent and a reactive-type flame retardant to prepare inherently flame-retardant flexible polyurethane foam (FPUF).

Lignin as a bio-based flame retardant additive ...

flame retardant rigid polyurethane foam: preparation, thermal stability, fire performance and mechanical properties. Journal of Polymer Research . 2013;20(9):234.

Inherently flame-retardant rigid polyurethane foams with ...

Rigid polyurethane foams (RPUFs) have become commercially important building thermal insulation materials [, , ], due to their light weight, superior physical and mechanical properties, as well as low costs and excellent insulation.

Biobased Polyols Using Thiol-Ene Chemistry for Rigid ...

effective additive flame retardant. In the present work, limonene-based polyol was synthesized and dimethyl methyl phosphonate (DMMP) was incorporated into it in order to enhance the flame-retardant properties of biobased rigid polyurethane foams (RPFs). Further, morphological, structural and mechanical proper-ties of RPFs were characterized.

Biobased Polyols Using Thiol-Ene Chemistry for Rigid ...

the preparation of polyurethane foams. Physical and mechanical properties of the biobased polyurethanes were found to be comparable to polyurethanes from a ... it in order to enhance the flame-retardant properties of biobased rigid polyurethane foams (RPFs). Further, morphological, structural and mechanical proper-

Why Use Polyurethane Foam - High & Low Density ...

Why Use Polyurethane Foam Our Rigid Polyurethane Foam is divided into two categories: Closed cell polyurethane foams are plastics created of bubbles that are

Functionalized lignin for halogen-free flame retardant ...

ORIGINAL PAPER Functionalized lignin for halogen-free flame retardant rigid polyurethane foam: preparation, thermal stability, fire performance and mechanical properties

Preparation and properties of flame retardant rigid ...

Ethanolamine spirocyclic pentaerythritol bisphosphonate (EMSPB), a novel intumescent flame retardant, was synthesized and used to improve the flame retardancy of rigid polyurethane foam (RPUF). The effects of EMSPB on the flammability, thermal stability, and mechanical properties of RPUF were discussed, respectively.

PROPERTIES OF THE POLYURETHANE (PU) LIGHT FOAMS

dynamic mechanical properties, physical properties (density and water absorption) and chemical properties (flame spreading rate burning test) of the foam EDULAN A/S

Halogen-free flame-retardant rigid polyurethane foam with ...

Rigid polyurethane foam (RPUF) is one of the three most common general plastics and has been widely used in many fields, such as transportation, military and construction, chemical transport, space filling, and other civil infrastructure applications due to its light weight, low thermal conductivity, mechanical properties, and low cost. 1,2 Meanwhile, poor flame retardancy is one of the main ...

Mechanical Properties and Flame Retardancy of Rigid ...

The flame retardancy, mechanical, and thermal properties of flame-retardant rigid polyurethane foams containing dimethyl methylphosphonate and SiO

Synergism between flame retardant and phosphonium salt ...

The current research was conducted to study the incorporation of phosphorus-based flame retardant (exolit OP 1230) and phosphonium salt treated montmorillonite (P-MMT) into polyol resin of polyurethane foam, with the purpose of imparting its compression properties

Mechanical Properties and Flame Retardancy of Rigid ...

The flame retardancy, mechanical, and thermal properties of flame-retardant rigid polyurethane foams containing dimethyl methylphosphonate and SiO2 nanospheres/graphene oxide were investigated.

study of mechanical behavior and flame retardancy of ...

hus improving the mechanical properties. The flame retardancy determined with two different flame-retarded systems COFPL/EG and EG/COFPL/TEP flame-retarded systems revealed increased flame retardancy in polyurethane foams, indicating EG/COFPL or EG/COFPL/TEP systems have a synergistic effect as a common flame retardant in castor oil-based PUFs.

Flame retardant coating on polyurethane foam as insulation ...

Flame retardant coating on polyurethane foam as insulation panel. ... flame retardant coating, Rigid-polyurethane foam, thermal insulation. 1. Introduction ... The structure of polyurethane foams depends on the ratio of polyol and isocyanate as its structure is having good mechanical properties dimensional stability, and less moisture ...

Halogen-free flame-retardant rigid polyurethane foam with ...

Halogen-free flame-retardant rigid polyurethane foams (RPUF-PDOP) were prepared using PDOP as a flame retardant. The flammability was investigated using limiting oxygen index, a vertical burning test (UL-94), and a cone calorimeter.

Polyurethane - Wikipedia

The properties of a polyurethane are greatly influenced by the types of isocyanates and polyols used to make it. Long, flexible segments, contributed by the polyol, give soft, elastic polymer. High amounts of crosslinking give tough or rigid polymers.

Synergism between Flame Retardant and Phosphonium Salt ...

The current research was conducted to study the incorporation of phosphorus-based flame retardant (exolit OP 1230) and phosphonium salt treated montmorillonite (P-MMT) into polyol resin of polyurethane foam, with the purpose of imparting its compression properties

Halogen-Free Flame-Retardant Flexible Polyurethane Foam ...

The effects of CMA content on the mechanical, thermal, and flame-retardant properties of FPUF were investigated by tensile test, TGA, limiting oxygen index (LOI), flame propagation test (Cal T.B. 117A-Part I standard), and cone calorimeter.

Flame Retardant Properties of Polyurethane/Expandable ...

flame retardant [25, 26] in EG systems to enhance the flame retardant efficiency. It was reported that EG and APP could improve the flame retardancy of rigid polyurethane foams [23].

Flame-retardant and mechanical properties of rigid ...

Some rigid polyurethane foam (RPUF) composites modified with microencapsulated red phosphorus (MRP), magnesium hydrate (Mg(OH)2), glass fiber (GF), and hollow glass bead (HGB) were prepared.

Performance study of flame-retardant semi-rigid ...

The purpose of this study was to improve the flame retardant properties of semi-rigid polyurethane, meanwhile, the mechanical properties of the foam got ameliorated. Design/methodology/approach PVA was dissolved in hot water.

Flameretardant and mechanical properties of highdensity ...

The article reported the flame-retardant and the mechanical properties of expandable graphite (EG), an intumescent type, and decabrominated dipheny ethane (DBDPE), a gas-phase type of flame-retardant-containing high-density rigid polyurethane foams (RPUF) with a constant density of 0.5g/cm 3. The results indicated that both EG and DBDPE could ...

Thermoplastic Polyurethane Elastomers - BASF

Thermoplastic Polyurethane Elastomers ... flame retardant or highly transparent have been clearly demonstrated across every sector of industry. Elastollan ... highest mechanical properties highest heat resistance highest resistance to mineral oils Using polyether polyols:

Polyurethane - Wikipedia

The properties of a polyurethane are greatly influenced by the types of isocyanates and polyols used to make it. Long, flexible segments, contributed by the polyol, give soft, elastic polymer. High amounts of crosslinking give tough or rigid polymers. Long chains and low crosslinking give a polymer that is very stretchy, short chains with lots of crosslinks produce a hard polymer while long chains and

The Thermal Properties of Rigid Polyurethane Foams Treated ...

Rigid polyurethane foam (PUF) were modified with MIFR to get the flame retardant PUF, whose flammability and burning behavior were characterized by UL 94 and limiting oxygen index (LOI). 25% of weight of MIFR were doped into PUF to get 24.5 of LOI and UL 94 V-0.

Properties of rigid polyurethane foams produced by the ...

The mechanical properties such as compressive strength and tensile strength ... flame retardant properties were characterized by LOI and maximum smoke density(MSD). 2. Experimental 2.1. Material ... Properties of Rigid Polyurethane Foams Produced by the Addition of Phosphorus Compounds

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