ResearchGate
The incorporation of filler in the plasticized polyurethane enhances the hardness, tensile strength, modulus, density, tear strength and solvent resistance. For a particular level of prepolymer...
EFFECT OF PLASTICIZER, FILLER AND SOLVENT SWELL ON
Incorporation of additives (plasticizer and filler) improves the performance characteristics of polyurethane elastomers. However, the degree of improvement varies based on the nature of...
Mechanical and Swelling Properties of Hydroxyl-Terminated
The mechanical and swelling properties of an elastomeric polyurethanes have been studied. The elastomers were composed of hydroxyl-terminated polybutadiene, the chain extended with either glyceryl monoricinoleate, neopentyl glycol, trimethylolpropane and cured with toluene diisocyanate and 4,4′-methylene diphenyl diisocyanate. The mineral fillers under study were nanoclay, TiO2, ZrO2 and ZnO
IOPscience
IOPscience
Study of the effect of solvent induced swelling on the
This effect has been explained in the literature as being caused by the diffusion of these substances into the matrix and its subsequent swelling, which produces a separation of the conductive particles and consequently a breaking of the percolation chains.
- Does plastic additive affect swelling?
- The effect of plastic additive's function on swelling The kinetic curves of the swelling of the various PLA samples in ethanol 95 v / v % and that of PP samples in isooctane – i.e. the solvent having a stronger swelling effect – are presented in Fig. 2.A and 2.B.
- How does swelling affect the migration of polymer additives?
- The plasticizing effect of swelling and its effect of promoting on the migration of polymer additives is widely known. It is usual to explain the relatively high diffusion coefficients obtained using food simulants mimicking fatty food by the swelling of the polymer ( Feigenbaum et al., 2000; Nasiri et al., 2016 ).
- Do plasticizers promote swelling of polymers?
- As expected, they show that plasticizers (TBAC and TOTM) promote the swelling of both polymers. The maximum values of ASD % in the case of PLA with no additive (reference), PLA–BHT, PLA–Ionox 220, and PLA–Uvinul 3039 are between 2.8 ± 0.03% and 3.1 ± 0.03% in ethanol 95 v / v %.
- Do plasticizers increase the rate and degree of swelling in polymer-food simulants?
- For all polymer-food simulant pairs, where swelling can be observed, the addition of plasticizers increased the rate and degree of swelling, though this change had a smaller effect than changing the polymer or the food simulant in the experimental setting. Both for swelling and migration, a stepwise increase in the relevant parameter was observed.
- Can polyethylene glycol be used as a plasticizer?
- As a hydrophilic renewable polymer, starch has been widely used in biocompatible plastics as a filler for more than two decades. The present study aimed at investigating the effects of polyethylene glycol (PEG), as a plasticizer, on the physicochemical properties of a hybrid composite—polylactic acid (PLA) and thermoplastic starch (TPS).
- Why do plasticizer-spiked PLA swell kinetic curves increase in ethanol?
- Meanwhile, the maximum ASD % of PLA–TBAC and PLA–TOTM are 6.4 ± 0.10% and 4.3 ± 0.23%, respectively. This increase in the ASD % values of the two plasticizer-spiked PLAs is a result of the polymer chain mobilizing effect of these additives. Fig. 2. Swelling kinetic curves of PLA ( 2.A) in ethanol 95 v / v % and PP ( 2.B) in isooctane.
