Results 241 to 250 of about 1,078,566 (277)

Hygroscopic thickness swelling rate of wood polymer nanocomposite

open access: yesJournal of Reinforced Plastics and Composites, 2010
In this study, the effects of nanoclay and coupling agent content on the clay dispersion and thickness swelling behavior of PP/WF composites were investigated. To meet this objective, the blend nanocomposites were prepared by melt mixing PP and beech WF at 50% weight ratios, with various amounts of nanoclay (0, 3, and 6 phc) and ...
Behzad Kord, Azadeh Kiaeifar
openaire   +2 more sources

Thickness‐dependent swelling of molecular layer‐by‐layer polyamide nanomembranes

Journal of Polymer Science, Part B: Polymer Physics, 2017
ABSTRACTThe thickness‐dependent water vapor swelling of molecular layer‐by‐layer polyamide films is studied via specular X‐ray reflectivity. The maximum swelling ratio of these ultrathin films scale inversely with thickness but more importantly show a dual‐mode sorption behavior characterized by Langmuir‐like sorption at low relative humidity and ...
Edwin Chan
exaly   +2 more sources

A review of thickness swelling in particleboard

Wood Science and Technology, 1970
This paper reviews the literature on thickness swelling of particleboard. Thickness swelling is directly affected by many process variables, but interactions between variables can change basic behavior. Durability depends on low swelling and a high resin content is the best way to control thickness swelling on the basis of past work.
exaly   +2 more sources

Hygroscopic thickness swelling rate of composites from sawdust and recycled plastics

Wood Science and Technology, 2007
The thickness swelling rates of compression molded wood plastic composites (WPCs) prepared from 50% by weight sawdust and 50% by weight virgin and/or recycled plastics (HDPE and PP) were studied. Thickness swelling rates of the manufactured WPCs were evaluated by immersing them in water at room temperature and monitoring thickness changes for several ...
Mehdi Tajvidi   +2 more
exaly   +2 more sources

Hybrid composites made from recycled materials: Moisture absorption and thickness swelling behavior

Bioresource Technology, 2010
In this research, hybrid composite materials were made from the combination of recycled newspaper fiber (RNF) and poplar wood flour (PWF) as reinforcement, recycled polypropylene (RPP) as polymer matrix, and maleated polypropylene (MAPP) as coupling agent, by using injection molding.
Shabnam Sheshmani, Alireza Ashori
exaly   +3 more sources

Swelling of Thick Polymer Brushes Investigated with Ellipsometry

Langmuir, 1999
We have investigated the swelling of a polystyrene brush in cyclohexane at varying temperatures with angle-dependent ellipsometry. The brush was grown in situ on the base of a high index prism by the “grafting from” technique. In the dry state it has a thickness of d = 134 nm. At the θ temperature it swells to about 600 nm.
Habicht, J.   +3 more
openaire   +2 more sources

Thickness swelling and density variation in aspen flakeboards

Wood Science and Technology, 1991
This paper reports the relationship between thickness swelling and density in labmade aspen flakeboards. The boards were manufactured with several levels of initial mat moisture content and urea resin content. Weight increase and thickness swelling at 12 locations on each board were recorded under specified environmental conditions over a period of 71 ...
J.Y. Liu, J.D. McNatt
openaire   +1 more source

Thickness Swelling and Water Absorption Character of Laminate Floor

Advanced Materials Research, 2013
Laminate floor coverings, with fiberboard in the middle layer, are hygroscopic which caused potential dimension instability. The paper tested thickness swelling (TS) and water absorption (WA) of 10 commercial laminate floors (LF) according to G/T 18102-2007 (GB/T) and LY/T 1611-2011(LY/T) and analyzed correlation between them.
Hai Xia Yu   +3 more
openaire   +1 more source

The Structure and Swelling of Corneal Scar Tissue in Penetrating Full-Thickness Wounds

Cornea, 2004
The purpose of this study was to determine corneal thickness and to examine the collagen and proteoglycans in full-thickness corneal scars up to 16 months following wounding.Ultrasound pachymetry was used to measure the depths of penetrating central scars and their surrounding areas in 16 rabbit corneas. Measurements were taken at regular intervals: 5,
Che J, Connon, Keith M, Meek
openaire   +2 more sources

Measurement of Changes in Thickness of Compressed Cotton Samples During Swelling

Textile Research Journal, 1973
An apparatus is described for measurement of vertical dimension of cotton samples immersed in water, methanol, tiquid ammonia, and NaOH solution. Increase in thickness of cotton showed recovery from compression and swelling. The increases were automatically recorded as a function of time by a chart recorder.
Blanche R. Porter, Charles R. Esposito
openaire   +1 more source

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