Solubility of erucamide (13-cis docosenamide) in isotactic poly(propylene) and thermal behaviour of their blends

Quijada‐Garrido, Isabel; Barrales‐Rienda, J. M.; Pereña, José M.; Frutos, G.

doi:10.1016/s0032-3861(97)0058x-4

Cited by 21 publications

(22 citation statements)

References 35 publications

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“…Quijada‐Garrido and others had reported about the erucamide in iPP film 17–22. Under vacuum at a high concentration the erucamide passes through the amorphous regions according to a diffusion equation and is released from the globules to the amorphous regions according to first‐order kinetics.…”

Section: Resultsmentioning

confidence: 99%

New bleeding model of additives in a polypropylene film under atmospheric pressure

Wakabayashi

Kohno²,

Kimura³

et al. 2007

J of Applied Polymer Sci

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ABSTRACT:Many additives are commercially used to add more favorable qualities to films. The bleeding process by which the additive in a film comes to the surface is considered. A new bleeding model of additives in a polypropylene film under atmospheric pressure was investigated. Solubility and diffusion are found to be important for explaining this bleeding process. The solubilities and diffusion coefficients of higher fatty acid amides such as erucamide (13-cis-docosenamide) and behenamide (docosanamide) were determined between 40 and 70°C and the difference between the solubilities and the diffusion coefficients was discussed. The experimental results are explained more precisely by assuming two transport processes between the crystalline regions and the amorphous ones.

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Section: Resultsmentioning

confidence: 99%

New bleeding model of additives in a polypropylene film under atmospheric pressure

Wakabayashi

Kohno²,

Kimura³

et al. 2007

J of Applied Polymer Sci

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“…Polymer properties such as crystallinity decrease diffusion by increasing tortuous pathways. A specific amorphous domain facilitates migration, which takes place through amorphous regions in the semi‐crystalline polymer. HDPE is highly crystalline material and supposedly with higher obstruction to diffusion than LDPE.…”

Section: Resultsmentioning

confidence: 99%

“…Migration of slip additives depends on physicochemical properties of the polymer, such as crystallinity, orientation, and crosslinking . Most of the diffusion takes place through amorphous regions, while the crystalline lamellae are almost impermeable . High‐density polyethylene (HDPE) has gained popularity in the manufacturing of single piece caps and closures for plastic bottles because of faster molding cycles resulting from its heat transfer characteristics.…”

Section: Introductionmentioning

confidence: 99%

Migration and performance of erucamide slip additive in high‐density polyethylene bottle caps

Dulal

Shanks

Chalmers³

et al. 2018

J of Applied Polymer Sci

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Diffusion of erucamide and their morphology on surface characteristics of high-density polyethylene (HDPE) screw caps depend on storage conditions. Erucamide performance relies on its amount, distribution, and consistency on the surface of HDPE. Specific application and removal torques can be achieved by controlling the amount of erucamide on the surface. The surface amount and the torque increased to an optimum level at 38 and 50 C within 120 hours of incubation, while they remained unchanged for lower temperatures. Erucamide diffused to the surface and formed flat plate-like crystal structures at similar time and temperature. These flatplates can slide over each other and provide the slip required to decrease the torque. An increase in contact angle demonstrated that hydrophobic hydrocarbon-chains of amide slip additives were oriented toward the air interface. An optimum surface amount of erucamide for proper sealing torque could be produced at a different combination of storage time and temperature.

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“…Calcium carbonate addition does not significantly modify the dry flow. However, the erucamide (slip agent) addition decreased the dry flow, improving material flowability and suggests that the slip agent decreased the friction coefficient among particles, as pointed out by Quijada-Garrido et al 29 .…”

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confidence: 82%

Influence of calcium carbonate and slip agent addition on linear medium density polyethylene processed by rotational molding

2013

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In this paper, the influence of calcium carbonate and slip agent on linear medium density polyethylene (LMDPE) processed by rotational molding was evaluated. LMDPE was dry blended with different CaCO 3 masterbatch ratios, erucamide slip agent and then extruded, micronized and rotomolded. The powder samples were characterized using MFI (Melting flow index), dry flow and bulk density. The characterization of rotomolded samples properties was performed by DSC (Differential scanning calorimetry), microscopy analysis, izod impact and tensile test. The results pointed out that the CaCO 3 addition modifies the bulk density compared to neat LMDPE, but did not significantly affect the dry flow and MFI. The erucamide addition decreased the dry flow and increased the bulk densities. The porosity degree data showed that CaCO 3 addition in the LMDPE increased the quantity of pores. The DSC results showed no significant difference in the crystallinity degree. The behavior of porosity led to a decrease in the mechanical properties of LMDPE with the CaCO 3 addition.

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Solubility of erucamide (13-cis docosenamide) in isotactic poly(propylene) and thermal behaviour of their blends

Cited by 21 publications

References 35 publications

New bleeding model of additives in a polypropylene film under atmospheric pressure

New bleeding model of additives in a polypropylene film under atmospheric pressure

Migration and performance of erucamide slip additive in high‐density polyethylene bottle caps

Influence of calcium carbonate and slip agent addition on linear medium density polyethylene processed by rotational molding

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