Results 251 to 260 of about 329,130 (286)

Polyethylene, Low-density

2009
Abstract Introduction LDPE is produced under high pressure (82–276 MPa) and high temperature (405–605 K) with a free radical initiator (such as peroxides and oxygen) and contains some long chain branches (LCB), which could be as long as chain backbones, and short chain branches (SCB).(3) It is produced by either a tubular or a stirred ...
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Flow properties of low density/linear low density polyethylenes

Polymer Engineering & Science, 1986
AbstractRheological data have been collected both in shear and non‐isothermal elongational flow on three different types of blends, made from one low density polyethylene sample and three linear low density polyethylene samples.In addition to the flow curves, data are presented on the extrudate‐swell phenomenon, on the instability arising in capillary ...
D. Acierno, D. Curto, F. P. La Mantia, A. Valenza   +3 more
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Biodegradable Low Density Polyethylene

Progress in Rubber, Plastics and Recycling Technology, 2008
LDPE in its unmodified form is not biodegradable. When it is compounded with additives or plasticizers, it is affected by microorganism in various degrees. Low Density Polyethylene film grade was compounded with butyl stearate, cottonseed oil, dioctyl phthalate, epoxidized soya bean oil, linseed oil, soya bean oil, groundnut oil and general-purpose ...
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Elongation viscosity estimates of linear low‐density polyethylene/ low‐density polyethylene blends

Polymer Engineering & Science, 1992
AbstractThe elongational viscosity (EV) of two series of linear low‐density polyethylene/low‐density polyethylene blends was estimated using an entry flow analysis. The difference, t − n, between the power law index t of the elongational viscosity and the power law index n of the viscosity, is proportional to the LDPE content for both series of blends ...
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Photo-oxidation of blends of low density polyethylene and linear low density polyethylene

Polymer Degradation and Stability, 1985
Abstract Films of blends of low density polyethylene with linear low density polyethylene and of the pure polymers were photo-oxidised for different times. From mechanical measurements the rate of photo-oxidation seems greater for the linear low density polyethylene and its rich blends.
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Modification of recycled high‐density polyethylene by low‐density and linear‐low‐density polyethylenes

Polymer Engineering & Science, 2003
AbstractThe present study investigated mixed polyolefin compositions with the major component being a post‐consumer, milk bottle grade high‐density polyethylene (HDPE) for use in large‐scale injection moldings. Both rheological and mechanical properties of the developed blends are benchmarked against those shown by a currently used HDPE injection ...
N. Kukaleva, G. P. Simon, E. Kosior
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Polyethylene, Linear Low-density

2009
Abstract Introduction LLDPE is the common name for copolymers of ethylene with α-olefin comonomer. The comonomers most frequently used commercially are butene, hexene, and octene. Commercial grade LLDPE resins with 4-methyl-1-pentene (4-MP-1) as comonomer is also available.
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Silane grafting reactions of low-density polyethylene

Journal of Applied Polymer Science, 1998
Reactions of vinyl trimethoxysilane grafting onto low-density polyethylene (LDPE) were investigated using Fourier transform infrared spectroscopy, differential scanning calorimetry, and thermal gravimetric analysis. The silane grafting reactions were induced by a fixed amount of dicumyl peroxide at 0.2 part of reagent per hundred parts with respect to ...
Yeong‐Tarng Shieh, Te‐Hui Tsai
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Correlation of structure, rheological, thermal, mechanical, and optical properties in Low Density Polyethylene/Linear Low Density Polyethylene blends in the presence of recycled Low Density Polyethylene and Linear Low Density Polyethylene

Polymer Engineering & Science
AbstractPost‐industrial low‐density and linear low‐density polyethylene blown films are mechanically recycled for reutilizing in the production of blown films for packaging applications. This process enables the production of films with lower cost and similar properties while preserving the environment and lowering the amount of waste material disposed
Romina Esmaeilzade, Kozodaev Alexey Stainslavovich, Mohammad Hossein Jandaghian, Leila Sadat Rokni Hosseini, Luma Hussain Saleh, Simin Zarghampour   +5 more
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Polyethylene, Metallocene Linear Low-density

2009
Abstract Introduction New types of linear low-density polyethylenes (LLDPE) based on the metallocene catalyst technology was introduced in the market place in 1991. There are now a number of well-established metallocene PE families commercially available and new products are constantly being introduced into the marketplace.
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