• effect of thermo-oxidation on loss of plasticizers,

    Effect of thermo-oxidation on loss of plasticizers,

    A small content of different plasticizers (2 wt%) has been added to a metallocene isotactic polypropylene to evaluate their loss rate under severe thermo-oxidative conditions together with the subsequent effects of degradation time on crystalline characteristics, on film surface and on final mechanical performance.

  • effect of thermo-oxidation on loss of plasticizers,

    Effect of thermo-oxidation on loss of plasticizers,

    Plasticizers loss is assessed under severe thermo-oxidative conditions in a metallocene iPP. Degradation time of remaining content depends strongly on the plasticizer incorporated. Alterations along the loss of plasticizer and antioxidant are observed in the iPP microstructure.

  • effect of thermo-oxidation on loss of plasticizers,

    Effect of thermo-oxidation on loss of plasticizers,

    Effect of thermo-oxidation on loss of plasticizers, on crystalline features and on properties in a metallocene isotactic polypropylene Article in Polymer 181:121749 · August 2019 with 97 Reads

  • plasticizer - an overview

    Plasticizer - an overview

    Plasticizer loss: Plasticizers can be lost via volatilization, extraction, or migration, depending on its environment. These can be summarized as follows: These can be summarized as follows: Volatilization—loss by evaporation from the surface followed by diffusion from the center of the sample to the surface, which can be a continuous process

  • the effect of cement type and plasticizer addition

    The effect of cement type and plasticizer addition

    The effect of plasticizers on the dynamic viscosity of cement pastes was tested using the SV-10 vibro-viscosimeter. With the SV-10 vibro-viscosimeter it is possible to define the dynamic viscosity of pastes up to 12,000 mPa s with 0.01 mPa s accuracy in a very small amount of paste (35 ml).

  • plasticization - an overview

    Plasticization - an overview

    Plasticizers are mainly used to obtain a better flexibility at ambient and low temperature. However, they can also have other advantages, like the possibility to increase the amount of filler, which leads to cost savings, or, with specific grades, the possibility to bring other characteristics such as fire retardancy, antistatic effect, and so on.

  • thermal degradation kinetics of plasticized poly (vinyl

    Thermal Degradation Kinetics of Plasticized Poly (Vinyl

    The effect of plasticizer on the thermal degradation behavior of plasticized PVC was investigated by thermal gravimetric analysis (TGA). The activation energies were calculated by three well known methods, developed by Flynn-Wall-Ozawa (FWO), Friedman and Kissinger, respectively.

  • effect of thermal characteristics of different plasticisers

    Effect of thermal characteristics of different plasticisers

    In this study of polyvinyl alcohol (PVOH)/SS were blended with two types of natural-based plasticizers namely, Epoxidized Soybean Oil (ESO) and Sorbitol. Thermal characteristics encompassing gelation temperature of sago starch (SS) and their enthalpy were investigated. For soil burial exposure, films were buried and weight loss for before and after two weeks were followed; the samples were

  • migration and emission of plasticizer and its degradation

    Migration and Emission of Plasticizer and Its Degradation

    number and amount of products was observed when the temperature was raised from 60 ˚ to 80 ˚ C. Loss of plasticizer, tris(2-butoxyethyl)phos- phate and its degradation products, was observed during aging at both 60 ˚ and 80 ˚ C. A small amount of 2-butoxyethanol was already present in the unaged samples, and it was the main low-molecular

  • loss of adjuvants from polymer films to foods simulants

    Loss of Adjuvants from Polymer Films to Foods Simulants

    Loss of plasticizers from polymer films to liquid environments: counterdiffusion aspects versus immersion temperature and ultra-violet-induced surface crosslinking. Polymer 1990 , 31 (6) , 1085-1091.

  • effect of different polyalcohols as plasticizers on the

    Effect of Different Polyalcohols as Plasticizers on the

    Conventional plastic materials accumulation has led to a constant search to develop friendly packaging, edible coatings from biopolymers are an example. Since different proteins have different behavior and plastizicer compatibility, in this work, the effect of different polyalcohols (glycerol, sorbitol, maltitol, mannitol, and xylitol) as plasticizers on squid protein films behavior was studied.

  • characteristics of biodegradable polylactide/thermoplastic

    Characteristics of Biodegradable Polylactide/Thermoplastic

    However, there is practically no effect of the plasticizer on the other degradation temperatures (at 50% weight loss, T max1 and T max2). Moreover, the addition of silica practically had no effect on the thermal degradation of the plasticized PLA/MPLA/TPS blend. However, the composites with A-SiO 2 had better thermal stability than those with