Properties of silk fibers modified with diethylene glycol dimethacrylate

Chen, Guoqiang; Guan, Jing; Xing, Tieling; Zhou, Xiang

doi:10.1002/app.24064

Cited by 23 publications

(13 citation statements)

References 13 publications

(21 reference statements)

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“…The reaction between the flame retardant and silk only occurs in the amorphous region of the silk fibre [1,14], a result which is consistent with the result of amino content analysis.…”

Section: X-ray Diffraction Analysissupporting

confidence: 82%

Flame retardancy finish with an organophosphorus retardant on silk fabrics

Guan

Chen

2006

Fire Mater.

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SUMMARYThe paper mainly deals with flame retardancy of silk fabrics treated with a commercial organophosphorus flame retardant [N-hydroxymethyl (3-dimethyl phosphono) propionamide (HDPP), also known as Pyrovatex CP], using the pad-dry-cure-wash method. The structures and properties of the treated and control sample are discussed. The Limiting Oxygen Index (LOI) value of the modified sample is above 30%. After 50 laundry cycles, it still has some flame retardancy left.HDPP and a cross-linking agent (HMM) were bound to silk fabrics which is confirmed by FT-IR spectra and amino analysis. The reaction degree of the flame retardant with silk is also high; almost all the tyrosine units have reacted, which can be confirmed by amino acid analysis. The reaction between flame retardant and silk only occurs in the amorphous region of silk fibre, which is confirmed by X-ray diffraction analysis and amino acid analysis. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analysis show that the flame retardant causes silk fabrics to decompose below its ignition temperature (6008C) and formed carbonaceous residue or char when exposed to fire. The char behaves as a thermal barrier to fire, so silk fabrics show good flame retardancy.The treatment has a little effect on the whiteness of the silk fabrics and the tensile strength of treated silk fabrics slightly decreased; both effects are negligible.

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“…The reaction between the flame retardant and silk only occurs in the amorphous region of the silk fibre [1,14], a result which is consistent with the result of amino content analysis.…”

Section: X-ray Diffraction Analysissupporting

confidence: 82%

Flame retardancy finish with an organophosphorus retardant on silk fabrics

Guan

Chen

2006

Fire Mater.

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“…Moreover difunctional monomers such as diethyleneglycol-and polyethyleneglycol-dimethacrylates were successfully applied to graft silk fibers and significant wet crease recovery was achieved. 34 Some of them were tested also in this work since higher values of reactivity and graft yield than those obtained with monomethacrylates should be expected.…”

Section: Introductionmentioning

confidence: 99%

Silk grafting with methacrylic monomers: Process optimization and comparison

Ferrero

Periolatto

Luraschi³

2006

J of Applied Polymer Sci

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The process of silk weighting with methacrylamide (MAA) initiated by ammonium persulfate was studied to optimize the operating conditions to obtain high yields of grafted monomer. The influence of MAA concentration, liquor ratio, concentration of initiator, contact and heating time, acidification, and swelling agents were considered, and optimum operating conditions were outlined. Moreover, various monomethacrylates and dimethacrylates were grafted onto silk as alternative to methacrylamide. Most of these showed graft yields higher than MAA in the same operating conditions and some were found suitable for silk weighting since the weighted fibers show soft hand and good dyeing behavior. DSC and TGA analyses of grafted silk enabled to evaluate the influence of various monomers on the thermal behavior of the weighted fibers. Moreover, on the basis of DSC data, a correlation between the calculated enthalpy of grafted polyMAA and monomer content was studied. The molecular structure of silk grafted with methacrylic monomers was finally characterized by FTIR analysis.

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“…Among natural and synthetic fibers, silk occupies a leading position for its unique properties, such as water absorption, heat retention, handling, luster, comfort, brilliant color shades obtained by dyeing and printing, etc. [4]. Besides its use as a textile fiber, it has been considered as starting raw materials for non-textile applications, especially in the biomedical, cosmetic and biotechnological fields, such as surgical suture, wound cover materials, controlled drug release carriers, tissue engineering scaffolds and repair materials for skins, bones, ligaments, etc.…”

Section: Introductionmentioning

confidence: 99%