Evaluating Plasticizer Loss In PVC Membranes Germany

Evaluating Plasticizer Loss In PVC Membranes

Classification:Chemical Auxiliary Agent, Chemical Auxiliary Agent
Other Names:Plasticizer
Purity:99.5%min
Type:Plasticizer, Dioctyl Phthalate
Usage:Leather Auxiliary Agents, Paper Chemicals, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Textile Auxiliary Agents
MOQ:200kgs
Package:200kgs/battle
Place of Origin::China

The rate of loss of plasticizer depends on plasticizer type, temperature, sheet thickness and exposure time. The actual mechanism behind this loss is evaporation of plasticizer from the

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Long-term durability assessment of PVC-P waterproofing

Classification:Chemical Auxiliary Agent, Chemical Auxiliary Agent
Other Names:Plasticizer
Purity:99.5
Type:Plasticizer
Usage:Coating Auxiliary Agents
MOQ:25kg/bag
Package:200kg/drum
Advantage:Stable

While plasticizer loss is a desorption phenomenon, the use of absorption tests to evaluate plasticizer loss has been suggested by some authors (Griffiths, Krikor and Park,

Plasticizer loss has been identified as the only relevant degradation phenomenon to PVC-P geomembranes in underground applications. To analyse the long-term degradation of

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INVESTIGATIONS INTO THE LONG-TERM BEHAVIOUR

Classification:Chemical Auxiliary Agent
Other Names:Plasticizer
Purity:99%, 99%
Type:Plasticizer, Dioctyl Phthalate
Usage:Coating Auxiliary Agents, Electronics Chemicals, Leather Auxiliary Agents, Paper Chemicals, Petroleum Additives, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Surfactants, Textile Auxiliary Agents, Water Treatment Chemicals
MOQ:25kg/bag
Package:200kg/drum
Application:plasticizer

testing architectural membranes and calculating strength reduction factors [1, 2]. In this work, PVC coated polyester fiber membranes taken from two dismantled architectural projects

When plasticizer migrates out of a polyvinyl chloride (PVC) geomembrane, the geomembrane shrinks. This paper presents equations that give the changes in volume and dimensions of the

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The influence of molecular weight on plasticizer

Classification:Chemical Auxiliary Agent, Chemical Auxiliary Agent
Other Names:Plasticizer
Purity:99
Type:Plastic Auxiliary, Plasticizer For Pvc
Usage:Coating Auxiliary Agents, Plastic Auxiliary Agents, Rubber Auxiliary Agents
MOQ:1000KG
Package:25kg/drum
Quality control:COA ,SDS,TDS
Delivery:Within 7-15 Days

relationship between plasticizer loss due to diffusion and the square root of time. This relationship shows that plasticizer loss is strongly dependent on the initial plasticizer level in the PVC

Oct 9, 2005The volatile loss of plasticizer from PVC membranes to. the surrounding air plays an important role in outdoor. roofing systems and in PVC geomembrane-lined pond. For creep

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A comparative assessment of the use of suitable

Classification:Chemical Auxiliary Agent, Chemical Auxiliary Agent
Other Names:Plasticizer
Purity:99.9%
Type:Adsorbent
Usage:Rubber Auxiliary Agents
MOQ:25kg/bag
Package:200kg/drum
Type:Adsorbent

The vast majority of studies on plasticizer loss from PVC are concerned with evaporative loss at elevated temperatures, or loss to a liquid extractant medium.18–21 Plasticizer loss resulting

As mentioned previously, the plasticizer functions as a solvent to the membrane components. The loss of plasticizer (DOS) from the membrane because of migration and/or evaporation resulted in increasing the viscosity of the

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Does plasticizer loss affect the behaviour of PVC-P geomembranes?
Further, to better analyse the influence of plasticizer loss on the behaviour of geomembranes, eight different formulations of PVC-P geomembranes are studied and tested for their mechanical properties. Long-term extrapolations of the ageing of PVC-P geomembranes are estimated on the basis of the plasticizer absorption tests.
Does plasticizer loss affect geomembranes in underground applications?
In the hypothesis that plasticizer loss is the only degradation process relevant to geomembranes in underground applications, the loss of plasticizer can be evaluated through the loss of weight of the specimens. Accordingly, all the specimens were cleaned, dried in the desiccator for 72 h and weighed before testing.
What is the rate of loss of plasticizer?
The rate of loss of plasticizer depends on plasticizer type, temperature, sheet thickness and exposure time. The actual mechanism behind this loss is evaporation of plasticizer from the surface of the membrane. Therefore, for highly plasticized PVC, as in this case, the rate of plasticizer loss is dependent on the surface area.
Are PVC-P geomembranes degraded in underground application conditions?
To analyse the long-term degradation of PVC-P geomembranes in underground application conditions, in this study, a specifically designed accelerated ageing device has been used for the tests. Furthermore, plasticizer absorption tests have been used to estimate the dependence of plasticizer loss on temperature and plasticizer content.
Is plasticizer loss ratio a threshold for the end of a geomembrane?
By analysing the changes in physical and mechanical properties of aged and tailor-made geomembranes, with different content levels of plasticizer, a value of plasticizer loss ratio that can be considered as a threshold for the end of the effectiveness of the geomembrane has been evaluated at 0.45.
Does plasticizer loss occur in moist environments?
Plasticizer loss is shown to be minimal in either moist or exposed environments. Membrane usefulness is not affected by the loss that does occur. Polyvinyl chloride (PVC) and PVC alloys have been used extensively for many years for containment. In fact, a number of sites decades old still have functional PVC liners.