scholarly journals THE EFFECT OF BLOWING AGENTS ON THE EFFECTIVENESS OF POLY(VINYL CHLORIDE) EXTRUSION

2016 ◽  
Vol 10 (32) ◽  
pp. 217-223 ◽  
Author(s):  
Tomasz Garbacz ◽  
Tomasz Jachowicz ◽  
Aneta Tor-Świątek
Keyword(s):  
Vinyl Chloride ◽  
Blowing Agents ◽  
Poly Vinyl Chloride ◽  
Chloride Extrusion

Study of the rheology and foaming processes of poly(vinyl chloride) plastisols with different foaming agents

2019 ◽  
Vol 39 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Yubi Ji ◽  
Heng Luo ◽  
Min Shi ◽  
Zhao Yang ◽  
Wei Gong ◽  
...  
Keyword(s):  
Vinyl Chloride ◽  
Complex Viscosity ◽  
Mechanical Analysis ◽  
Decomposition Temperature ◽  
Scanning Calorimetry ◽  
Foaming Agents ◽  
Blowing Agents ◽  
Poly Vinyl Chloride ◽  
Chemical Blowing Agents

AbstractPoly(vinyl chloride) (PVC) plastisols are widely used in the production of flexible PVC foams. In this study, we investigated the evolution of the complex viscosity of PVC plastisol by dynamic oscillatory tests, the storage modulus of the PVC compound by dynamic mechanical analysis, and the thermal behavior including the decomposition of three chemical blowing agents (CBAs), namely, azodicarbonamide, 4,4′-oxybis(benzenesulfonyl hydrazide), and sodium bicarbonate, by differential scanning calorimetry. Furthermore, the morphology and quality of the foams obtained from the corresponding plastisols were characterized by scanning electron microscopy. The results indicated that the onset decomposition temperature T2(5%) of a CBA in plastisol is the most critical indicator of the foam quality. The temperature difference corresponding to [T2(5%) – Tηmax] was also proved to be another important parameter. When T2(5%) is within the optimum temperature range of a PVC plastisol, the bigger the [T2(5%) – Tηmax] difference, the better the quality of the foams.

Investigation of the poly(vinyl chloride) extrusion process using a feed throat with a feed pocket

2013 ◽  
Vol 54 (9) ◽  
pp. 2037-2045 ◽  
Author(s):  
Janusz W. Sikora ◽  
Bronisław Samujlo
Keyword(s):  
Vinyl Chloride ◽  
Extrusion Process ◽  
Poly Vinyl Chloride ◽  
Chloride Extrusion

scholarly journals Impact of blowing agents in poly(vinyl chloride) cellular extrusion process

2017 ◽  
Vol 21 (1) ◽  
pp. 22-30
Author(s):  
Tomasz Garbacz ◽  
Ľudmila Dulebová
Keyword(s):  
Vinyl Chloride ◽  
Extrusion Process ◽  
Blowing Agents ◽  
Poly Vinyl Chloride

Influences of Modified Chemical Blowing Agents on Foaming of Wood Plastic Composites Prepared from Poly(Vinyl Chloride) and Rice Hull

2011 ◽  
Vol 306-307 ◽  
pp. 869-873 ◽  
Author(s):  
Nawadon Petchwattana ◽  
Sirijutaratana Covavisaruch
Keyword(s):  
Sodium Bicarbonate ◽  
Vinyl Chloride ◽  
Rice Hull ◽  
Wood Plastic Composites ◽  
Blowing Agents ◽  
Blowing Agent ◽  
Maximum Reduction ◽  
Plastic Composites ◽  
Poly Vinyl Chloride ◽  
Chemical Blowing Agents

The influences of the types of chemical blowing agent (CBA) namely endothermic, exothermic and their mixture, on the properties of the foamed poly(vinyl chloride) (PVC) and rice hull wood plastic composites (WPC) were investigated in the current research. Specifically, azodicarbonamide and sodium bicarbonate were selected to represent the exothermic the endothermic CBA respectively. Particles of sodium bicarbonate and azodicarbonamide were modified with 25 wt% citric acid and 20 wt% ZnO respectively, and they were used at 0 to 3.0 wt%. Maximum reduction of density by 45% was achieved when the exothermic CBA was applied at 2.0% by weight. Overall, the flexural properties decreased as the level of the CBA was increased from 0-2.0 wt%, but there was an upturn when the CBA reached 3.0 wt%. The mixture of exo/endothermic CBA illustrated the mechanical properties averaged between their parents.

A scientific approach to rigid poly(vinyl chloride) extrusion

1985 ◽  
Vol 7 (1) ◽  
pp. 32-35 ◽  
Author(s):  
James W. Summers ◽  
Elvira B. Rabinovitch ◽  
Joseph G. Quisenberry
Keyword(s):  
Vinyl Chloride ◽  
Poly Vinyl Chloride ◽  
Scientific Approach ◽  
Rigid Poly ◽  
Chloride Extrusion

Study on the properties of poly(vinyl chloride) cables subjected to thermal aging

2013 ◽  
Vol 38 (1-2) ◽  
pp. 71-82
Author(s):  
Mohammed Nedjar
Keyword(s):  
Vinyl Chloride ◽  
Thermal Aging ◽  
Poly Vinyl Chloride
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