Coating of Polypropylene Nonwovens with Acrylic Copolymers

Mondal, Subrata; Gupta, Bhupender S.; Singh, Harpal

doi:10.1177/1528083703035098

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…The abrasion resistance of Cyan and Magenta prints of UV curable inks was found to be higher than other types. The observed increase in abrasion resistance after printing could be attributed to the surface print films having better abrasion resistance than the underlying PLA filaments [22,25].…”

Section: Abrasion Resistancementioning

confidence: 99%

Towards UV-curable inkjet printing of biodegradable poly (lactic acid) fabrics

et al. 2015

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There has been growing interest in using poly (lactic acid) (PLA) fibres because of its natural-based origin and good biodegradability; however its adoption within the textile industry has been limited to lower temperature wet and dry processing, because of its relatively lower glass transition temperature (Tg) and melting point (Tm). Here we report for the first time inkjet printing of heat-sensitive PLA fabrics using ambient temperature UV curable inks as a way of overcoming the potential degradation at higher temperature. The UV-cured inkjet printed PLA fabrics exhibited good performance characteristics such as acceptable colour fastness, relatively high colour strength, K/S, and comparable colour difference, E, after washing to the thermally-cured ink system, without affecting the physical and mechanical properties of the fabrics. In contrast thermally cured inkjet printed PLA fabrics exhibited significantly reduced bursting strength and stiffer handle attributed to the thermal degradation and lower fibre flexibility imparted at the higher temperature. Investigation of the radiation-cured printing approach indicates UV curable inkjet printing may be considered as an alternative to conventional thermally-cured pigment printing of heat sensitive biodegradable PLA-based fabrics.

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Section: Abrasion Resistancementioning

confidence: 99%

Towards UV-curable inkjet printing of biodegradable poly (lactic acid) fabrics

et al. 2015

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“…PLA exhibited a T g in the range of 50-60 C, and this polyester was rigid and brittle at lower temperatures [16]. When the heating temperature was above T g and T c1 , the long-chain polymer began to move slowly and the ordered structure of cold crystallization was apparently [25][26][27]. At temperatures higher than T m1 , however, the degree of crystallinity in PLA was significantly higher than that of unheated composites.…”

Section: Dsc Curves Of the Pla Samplementioning

confidence: 99%

A comparison of the heat treatment duration and the multilayered effects on the poly(lactic) acid braid reinforced calcium phosphate cements used as bone tissue engineering scaffold

Chen

Shih

et al. 2016

Journal of Industrial Textiles

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Composites comprising a braided poly(lactic) acid (PLA) filament and calcium phosphate bone cement (CPC) were inferred to maintain space and to pack porous fillers into restorative sites. Composites of alkalized multilayer-PLA braids and CPC (PLA/CPC) were divided into various groups according to a series of heat-treatment periods that lasted for 60, 90, 120, 150, and 180 min at 160℃; subsequently, these composites were characterized. Strength decays of samples were also compared after 24 h immersion in Hanks’s physiological solution. Results showed that the PLA/CPC specimens were toughened after treatment at 160℃ for 120 min. Furthermore, the moduli of PLA/CPC groups increased significantly when the heating time was more than 150 min; this effect was generated by the cold crystallization within the PLA filaments. The reduced stress in the composites after immersion was attributed to the fibers that protruded from the scaffold surface and to hydrolysis. The mechanical test results for the PLA/CPC composites indicated that the toughening effect was strengthened significantly under prolonged heat treatment, especially when the heating time was longer than 150 min. The cold crystallization degree of PLA increased, thereby enhancing the strength and toughness of a specimen before immersion. Thus, PLA/CPC composites can be used to simulate potential bone functions as well as to maintain three-dimensional spaces and pack porous fillers into restorative sites conveniently.

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“…Application is as manual screen, followed by drying at 60-70 • C, with fixation carried out at 135 • C for 5 min. Tensile, tear and abrasion testing demonstrated good breaking load and abrasion resistance, and a worsening of the tear strength compared to the same properties of the starting material [6]. A recent investigation of the abrasion characteristics and air and water permeability of PP-coated fabrics has been conducted.…”

Section: Introductionmentioning

confidence: 99%

Polyurethane Impregnation for Improving the Mechanical and the Water Resistance of Polypropylene-Based Textiles

Patti

Costa²,

Perrotti³

et al. 2021

Materials

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Commercial waterborne polyurethane (PU) dispersions, different in chemistry and selected on the basis of eco-friendly components, have been applied to a common polypropylene (PP)-based woven fabric. Impregnation has been chosen as a textile treatment for improving the features of basic technical textiles in light of potential applicability in luggage and bag production. The effect of drying method, performed under conditions achieved by varying the process temperature and pressure, on the features of the treated textiles, has been verified. The prepared specimens were characterized in terms of mechanical behavior (tensile, tear and abrasion resistance) and water resistance (surface wettability and hydrostatic pressure throughout the treated textiles). The experimental results suggest an incremental improvement of the tensile features for all the investigated specimens. For tear strength, no augmentation compared to that of the neat textile, could be verified as a consequence of polyurethane treatment. Remarkable improvements of abrasion resistance were displayed for all the impregnated PP textiles. Benefits in water resistance could be attributed to the presence of hydrophobic PU in the textile weaving of the PP samples. The ultimate improvement in water resistance was dependent on drying conditions.

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Coating of Polypropylene Nonwovens with Acrylic Copolymers

Cited by 4 publications

References 8 publications

Towards UV-curable inkjet printing of biodegradable poly (lactic acid) fabrics

Towards UV-curable inkjet printing of biodegradable poly (lactic acid) fabrics

A comparison of the heat treatment duration and the multilayered effects on the poly(lactic) acid braid reinforced calcium phosphate cements used as bone tissue engineering scaffold

Polyurethane Impregnation for Improving the Mechanical and the Water Resistance of Polypropylene-Based Textiles

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