Thermodynamic interactions and nonlinear rheological properties of plasticized polyvinyl chloride

1986 ◽  
Vol 8 (3) ◽  
pp. 107-111
Author(s):  
Peter H. Foss ◽  
Montgomery T. Shaw
Keyword(s):  
Rheological Properties ◽  
Polyvinyl Chloride

Changes in rheological properties of polyvinyl chloride plastisols with storage time

2020 ◽  
Vol 137 (37) ◽  
pp. 49105
Author(s):  
Yubi Ji ◽  
Anjiang Tang ◽  
Zhao Yang ◽  
Heng Luo ◽  
Hong Tan
Keyword(s):  
Rheological Properties ◽  
Polyvinyl Chloride ◽  
Storage Time

scholarly journals Anti-Gnawing, Thermo-Mechanical and Rheological Properties of Polyvinyl Chloride: Effect of Capsicum Oleoresin and Denatonium Benzoate

2021 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
Laongdaw Techawinyutham ◽  
Arnuparb Prasarnsri ◽  
Suchart Siengchin ◽  
Rapeephun Dangtungee ◽  
Sanjay Mavinkere Rangappa
Keyword(s):  
Weight Loss ◽  
Rheological Properties ◽  
Polyvinyl Chloride ◽  
Loss Modulus ◽  
Zinc Stearate ◽  
Toxic Substances ◽  
Elongation At Break ◽  
Denatonium Benzoate ◽  
Chloride Effect ◽  
Level Of Significance

Anti-rodent polymer composites were prepared using non-toxic substances denatonium benzoate (DB) and capsicum oleroresin (CO) mixed with polyvinyl chloride (PVC) matrix. DB is mixed in zinc stearate (ZnSt) called DB/ZnSt, and CO, providing burning sensation, is impregnated in mesoporous silica named SiCO. There are three sets of sample: Blank, composites Set I and Set II. Set I consists of DB/ZnSt at concentration of 1.96 wt% and SiCO at concentration of 12.16 wt%, 14.47 wt%, 18.75 wt% and 23.53 wt%. Set II comprises SiCO at the same amount of Set I. The anti-rodent composites studied are anti-gnawing, surface morphology, thermo-mechanical and rheological properties. Anti-rodent testing is analyzed by one-way blocked analysis of variance (ANOVA) and compared with Tukey test with a 95% level of significance, presenting good anti-gnawing efficiency. The best rat-proof sample is II.4, consisting of SiCO 23.53 wt%, which presents percentage of weight loss from gnawing at 1.68% compared to weight loss of neat PVC at 59.74%. The addition of SiCO at concentration ranging from 12.16 to 23.53 wt% reduces tensile strength around 25–50%, elongation at break strength around 2–23%, shear storage modulus (G′) around 30%, shear loss modulus (G″) shear viscosity (η) and glass transition (Tg) around 43% compared to Blank. The increase in SiCO concentration slightly improves the thermal stability of PVC composites around 3%, but the addition of DB/ZnSt at 1.96 wt% slightly reduces those properties.

Effects of chitosan as biopolymer coupling agent on the thermal and rheological properties of polyvinyl chloride/wood flour composites

2014 ◽  
Vol 58 ◽  
pp. 392-399 ◽  
Author(s):  
Kaimeng Xu ◽  
Kaifu Li ◽  
Tuhua Zhong ◽  
Litao Guan ◽  
Chengping Xie ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Polyvinyl Chloride ◽  
Coupling Agent ◽  
Wood Flour

A Replica Technique for the Inside Surfaces of Small Diameter Pipes and Tubes

1967 ◽  
Vol 25 ◽  
pp. 352-353
Author(s):  
T. G. Gregory
Keyword(s):  
Polyvinyl Chloride ◽  
Small Diameter ◽  
Replica Technique ◽  
Tube Size ◽  
Inside Diameter ◽  
Complete Inspection ◽  
Operating Limits

A nondestructive replica technique permitting complete inspection of bore surfaces having an inside diameter from 0.050 inch to 0.500 inch is described. Replicas are thermally formed on the outside surface of plastic tubing inflated in the bore of the sample being studied. This technique provides a new medium for inspection of bores that are too small or otherwise beyond the operating limits of conventional inspection methods.Bore replicas may be prepared by sliding a length of plastic tubing completely through the bore to be studied as shown in Figure 1. Polyvinyl chloride tubing suitable for this replica process is commercially available in sizes from 0.037- to 0.500-inch diameter. A tube size slightly smaller than the bore to be replicated should be used to facilitate insertion of the plastic replica blank into the bore.

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