Graft polymerization of flame-retardant compound onto silk via plasma jet

Chaiwong, C.; Tunma, Somruthai; Sangprasert, Waleepan; Nimmanpipug, Piyarat; Boonyawan, Dheerawan

doi:10.1016/j.surfcoat.2010.02.044

Cited by 37 publications

(13 citation statements)

References 13 publications

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“…Another disadvantage of phosphorus-based and nitrogen-based FRs with methylol groups is formaldehyde release [4]. In addition to the aforementioned FR agents, other FR agents and techniques, such as nano-materials, sol-gel and graft polymerisation, have been studied to enhance the FR properties of silk [5][6][7][8]. With the awareness of the toxicity and environmental pollution of FR agents, eco-friendly FR agents and innovative techniques must be used to address existing issues [9].…”

Section: Introductionmentioning

confidence: 99%

Flame-retardant treatment of silk fabric with sodium phytate and chitosan using the layer-by-layer padding technique

Lv¹,

Guan²,

Chen³

2019

TEK

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Bio-based fl ame-retardant agents and layer-by-layer assembly have attracted a great deal of attention in the fl ame-retardant fi elds of textiles, composites and polymeric materials. In this study, the electrostatic layer-by-layer assembly of chitosan and sodium phytate on silk fabric was carried out using a padding technique. The eff ects of the concentration and assembled bilayer of chitosan and sodium phytate on the weight gain, fl ammability, surface morphology, whiteness, stiff ness, lustre, tensile strength, and washing durability of silk fabric were studied, and the heat release, thermal stability and fl ame-retardant mechanism of the coated fabric were analysed. The results revealed that at 10 to 15 assembled bilayers, the coated fabrics exhibited high limiting oxygen indexes and passed the vertical burning test, and their good fl ame retardancy was maintained even after 15 washing cycles. Moreover, the coated fabrics exhibited a signifi cant decrease in peak the heat release rate and a strong charring ability at high temperatures. The chitosan and sodium phytate system acted as fl ame retardants in the condensed phase. Given the high weight gain of silk fabric, the layer-by-layer assembly of chitosan and sodium phytate using a padding technique was more applicable to the fl ame-retardant treatment of furnishing fabrics.

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Section: Introductionmentioning

confidence: 99%

Flame-retardant treatment of silk fabric with sodium phytate and chitosan using the layer-by-layer padding technique

Lv¹,

Guan²,

Chen³

2019

TEK

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“…Therefore, fire retardant PP composites have recently received the attention of researchers . Different techniques are being adopted by the researchers to induce fire retardancy in the polymer composites . Incorporation of micro/nano FR fillers in the composites is the most common method among all, which has been reviewed by various researchers .…”

Section: Introductionmentioning

confidence: 99%

The influence of particle size and surface treatment of filler on the properties of oyster shell powder filled polypropylene composites

et al. 2016

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In this study, properties of oyster shell powder filled polypropylene (OSP/PP) composites were improved by enhancing particle distribution and filler‐matrix interfaces in the composites. The OSP enhances thermal stability and fire retardant properties of polymer composites but it decreases the mechanical strength due to poor interaction with the polymer matrix. OSP is an amorphous powder which agglomerates during distribution. Polyvinyl alcohol (PVA) was used to enhance the interfacial bonding between OSP and PP, while distribution of the OSP particles in composites was improved by varying the particle size of the filler. The effects of particle size and PVA treatment on mechanical properties of composites were studied through experimental tests and finite element analysis. Experimental results and finite element analysis agree to each other, it was observed that small size particles and PVA incorporation resulted in improving properties of OSP/PP composites. Mechanical properties were improved while thermal stability and fire retardancy were further enhanced. Fourier transform infrared spectroscopy revealed a physical interaction between the composite constituents in the presence of PVA. POLYM. COMPOS., 39:2420–2430, 2018. © 2016 Society of Plastics Engineers

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“…(iii) Grafting method. Graft copolymerization technology is grafting functional monomer onto silk backbone so as to improve silk's performance like wrinkle resistance,12, 13 antibacterial property,14 flame retardancy,15 and so on. This kind of method could keep the intrinsic characteristics of silk itself well at the same time of introducing new function.…”

Section: Introductionmentioning

confidence: 99%

Performance of flame retardancy silk modified with water‐soluble vinyl phosphoamide

Guan¹,

Chen²

2013

J of Applied Polymer Sci

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In this article, a water-soluble flame retardant monomer dimethyl(methacryloyloxyethyl)phosphoramidate (DMMEPN) was synthesized and applied onto silk fabric via graft copolymerization technique initiated with potassium persulfate (KPS). The results of attenuated total reflection infrared spectroscopy (ATR), scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDS) indicated that DMMEPN was successfully grafted onto silk fiber surface. X-ray diffraction (XRD) patterns showed that grafting process didn't change the crystalline structure of silk fibers and the reaction mainly occurred at the amorphous region of silk fibers. DMMEPN grafted silk fabric exhibited self-extinguish property when ignited with a candle like fire with LOI of 32.38% and could pass vertical flammability test with char length of 42 mm. Thermal gravimetric analysis showed that grafted silk fibers had different thermal decomposition mode with control silk fibers and tended to produce more char after combustion. This article also investigated the physical properties like whiteness index, hygroscopicity, and tensile strength of grafted silk fabrics. The results showed that physical properties had some loss but had no negative effect on final uses. Laundering durability test demonstrated treated silk fabrics still showed flame retardancy after enduring 30 hand wash cycles.

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Graft polymerization of flame-retardant compound onto silk via plasma jet

Cited by 37 publications

References 13 publications

Flame-retardant treatment of silk fabric with sodium phytate and chitosan using the layer-by-layer padding technique

Flame-retardant treatment of silk fabric with sodium phytate and chitosan using the layer-by-layer padding technique

The influence of particle size and surface treatment of filler on the properties of oyster shell powder filled polypropylene composites

Performance of flame retardancy silk modified with water‐soluble vinyl phosphoamide

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