Main functions of iron compounds as smoke suppressant in poly(vinyl chloride) combustion

1983 ◽  
Vol 28 (5) ◽  
pp. 1573-1584 ◽  
Author(s):  
A. Michel ◽  
M. Bert ◽  
Tran Van Hoang ◽  
P. Bussiere ◽  
A. Guyot
Keyword(s):  
Vinyl Chloride ◽  
Iron Compounds ◽  
Smoke Suppressant ◽  
Poly Vinyl Chloride

Zinc Hydroxystannate-Coated Mineral Grade Mg(OH)2 as Flame-Retardant and Smoke Suppression for Flexible PVC

2013 ◽  
Vol 652-654 ◽  
pp. 481-484 ◽  
Author(s):  
Chun Zheng Wang ◽  
Wei Hong Wu ◽  
Xia Ye ◽  
Lei Liu
Keyword(s):  
Flame Retardant ◽  
Vinyl Chloride ◽  
Smoke Suppression ◽  
Crosslinking Reaction ◽  
X Ray Diffraction ◽  
Limiting Oxygen Index ◽  
Smoke Suppressant ◽  
Poly Vinyl Chloride ◽  
Zinc Hydroxystannate ◽  
The Stability

A zinc hydroxystannate-coated mineral grade Mg(OH)2 (ZHSCMH) was synthesized as flame retardant and smoke suppressant for flexible poly (vinyl chloride). The powder of ZHSCMH was characterized by the x-ray diffraction (XRD) and scanning electron microscopy (SEM). The flame retardancy, smoke suppression and thermal behavior of PVC treated with ZHSCMH and mineral grade Mg(OH)2 were comparative studied by means of limiting oxygen index (LOI), smoke density rating (SDR), thermogravimetry (TG), differential thermogravimetry (DTG) and SEM. The results show that, ZHSCMH can be used as a high effective flame retardant and smoke suppressant for PVC. The flame retardant of ZHSCMH can effectively promote the crosslinking reaction of poly (vinyl chloride) (PVC) in the first stage, and improve the stability of the char residue in the second stage.

An iron-organic polymeric smoke suppressant for poly(vinyl chloride)

1988 ◽  
Vol 2 (1) ◽  
pp. 53-57 ◽  
Author(s):  
Eberhard W Neuse ◽  
Jeremy R Woodhouse ◽  
Giorgio Montaudo ◽  
Concetto Puglisi
Keyword(s):  
Vinyl Chloride ◽  
Smoke Suppressant ◽  
Poly Vinyl Chloride

Thermal Stability of Poly (vinyl chloride) Formulations Containing Iron Additives as a Replacement for Antimony Oxide

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Howell BA ◽  
Daniel YG ◽  
Butwin FJ ◽  
Weil ED
Keyword(s):  
Thermal Stability ◽  
Vinyl Chloride ◽  
Oxygen Index ◽  
Antimony Oxide ◽  
Iron Compounds ◽  
Limiting Oxygen Index ◽  
Poly Vinyl Chloride ◽  
Roll Mill ◽  
The Impact ◽  
Thermal Stability Of

Poly (vinyl chloride) [PVC] is a widely used commodity polymer with particular application for wire and cable coating, and for pipe and profile extrusion. For processing, PVC must be heavily plasticized. In addition, a number of other additives are usually introduced to promote thermal stability, to enhance processability and to inhibit flammability. Antimony oxide is often used in PVC formulations. However, the growing concern about the negative health and environmental impacts of antimony oxide has stimulated efforts to find suitable replacements. Iron compounds have been examined as suitable replacements for antimony oxide. PVC formulations containing 45 phr of Pevalen plasticizer, 50 phr of magnesium hydroxide and 2 or 10 phr of an iron additive were processed using a two-roll mill at 180°C. The thermal degradation and flammability of these materials have been evaluated utilizing thermogravimetry (TGA) and limiting oxygen index (LOI) measurements. All of the iron additives are effective in increasing LOI for combustion of the blends and in promoting char formation. The impact of the presence of all the iron additives is comparable and independent of the oxidation level of iron. Based on considerations of cost and availability, simple iron oxide may be the additive of choice. Keywords: PVC additives; Antimony oxide replacements; Combustibility of formulated PVC; Impact of additives on the thermal stability of PVC;

Plasticised Chlorinated Poly(vinyl chloride)-PY/GC/MS Studies Pertinent to the Role of FeOOH as a Smoke Suppressant

1999 ◽  
Vol 17 (6) ◽  
pp. 483-493 ◽  
Author(s):  
Peter Carty ◽  
Dennis Price ◽  
John Milnes ◽  
Claire Radcliffe ◽  
Stewart White
Keyword(s):  
Vinyl Chloride ◽  
Smoke Suppressant ◽  
Poly Vinyl Chloride
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