Effects of chemical composition and thermal stability of finishes on the compatibility between glass fiber and high melting temperature thermoplastics

Styrene/tetradecyl methyl acrylate/3-methacryloxylpropyl trimethoxyl silane triblock copolymers (PSTKs), with well-defined structures and narrow molecular weight distributions, were synthesized by atom transfer radical polymerization. They were investigated as macromolecular coupling agents for the surface treatment of glass fibers. The reaction kinetics for the triblock copolymers were studied. The contact angles of the copolymers with water and diiodomethane showed that a modifiedglass-fiber surface treated with a PSTK solution had strong hydrophobicity and that the impregnation of polypropylene on glass fibers was improved dramatically. In comparison with a film of 3-methacryloxylpropyl trimethoxyl silane, the polarity of the surface free energy of a PSTK film decreased, whereas the dispersion increased greatly. The critical concentration of the macromolecular coupling agents was obtained, and the monolayer saturated adsorptive capacity was calculated with the Gibbs absorption isotherm equation.

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“…The values of γ

_{italici}^{italicp}

and γ

_{italici}^{italicd}

for H 2 O and CH 2 I 2 are given in Table VII in the literature 32…”

Section: Resultsmentioning

confidence: 99%

Styrene/tetradecyl methyl acrylate/3‐methacryloxylpropyl trimethoxyl silane triblock copolymers: Atom transfer radical polymerization synthesis and effects on the glass‐fiber/polypropylene interphase properties as a macromolecular coupling agent

Zhou

Gao

Wang

et al. 2007

J of Applied Polymer Sci

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“…Nevertheless, they showed that the peak weight loss of the sizing on the fibres surface could occur at as much as 100°C lower than that of cast films. Gao et al [41] also investigated the thermal stability of silane only sizings on commercial glass fabrics using a combination of TGA, XPS and ToF SIMS. E-glass fabrics coated with either APTES or TG970 (an undefined silane containing amino functionality) were investigated.…”

Section: Thermal Analysismentioning

confidence: 99%

A review of the analysis and characterisation of polymeric glass fibre sizings

Thomason

2020

Polymer Testing

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Glass fibre reinforcements form the backbone of a composites industry. Possibly the most critical component involved in the manufacture of glass fibres and their composites is the fibre sizing. Yet because of the intense level of secrecy surrounding size formulations there are few who have more than a superficial understanding of sizings. Composite developers and researchers have a growing need for practical tools which can assist with the understanding of the nature and role of sizings on the glass fibres which reinforce their composites. This work reviews some of the most relevant articles from the widely dispersed literature around the analysis and characterisation of these polymeric sizings. The review covers the analysis and characterisation of the polymeric sizing layer on the glass fibre surface using high vacuum surface analysis techniques, thermal analysis, atomic force microscopy based techniques, surface energy analysis, infrared methods, and combined multiple analysis techniques. The conclusions highlight the fragmented nature of the knowledge base on sizings and the lack of reliable and reproducible reference materials on which to build real progress in the understanding of this critical technology.

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“…The binding energy of S 2p (170.5 eV) let us suppose that this element is present in a sulphate component. The C 1s spectra can be curve-fitted with three components: (i) a main component at a binding energy of 284.6 eV corresponding to C-H [13], (ii) a component at a binding energy of 286.5 eV corresponding to functional groups such as C-O and C-N [13], and (iii) a component at a binding energy of 288.7 eV corresponding to carboxylic groups (O-C@O) [13]. From the previous hypothesis, the absolute and relative percentages of these different components have also been determined.…”

Section: Xps Analysis Of the Fibre Surfacementioning

confidence: 99%

“…The impregnation ability should be then influenced by the sizing type applied on glass fibres and by the resin composition and thus by the interfacial adhesion [5][6][7][8][9][10][11]. Most of the researches were focused on the influence of silane coupling agents on polymer/glass interactions [6,[12][13][14][15][16]. However, commercial glass fibre sizings are multi-component mixtures in which the silane represents only a small fraction of the total mass deposited on the glass surface.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of glass fibres used in automotive industry for SMC body panels

Feuillade¹,

Bergeret²,

Quantin³

et al. 2006

Composites Part A: Applied Science and Manufacturing

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Advances in surface quality and a better understanding of the formation mechanisms of surface defects are required for SMC applications as body panels in the automotive industry. This study is focused on the influence of the material formulation and SMC process on the surface quality, which is probably conditioned by the interactions between the paste and the fibres. The main parameters are: (i) the amount of sizing applied on fibres, (ii) the type of antistatic agent and its deposit method and (iii) the type of film former. The approach based on surface energy evaluations seems to be a useful tool to facilitate the prediction of the surface quality without any moulding.

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Effects of chemical composition and thermal stability of finishes on the compatibility between glass fiber and high melting temperature thermoplastics

Cited by 10 publications

References 15 publications

Styrene/tetradecyl methyl acrylate/3‐methacryloxylpropyl trimethoxyl silane triblock copolymers: Atom transfer radical polymerization synthesis and effects on the glass‐fiber/polypropylene interphase properties as a macromolecular coupling agent

Styrene/tetradecyl methyl acrylate/3‐methacryloxylpropyl trimethoxyl silane triblock copolymers: Atom transfer radical polymerization synthesis and effects on the glass‐fiber/polypropylene interphase properties as a macromolecular coupling agent

A review of the analysis and characterisation of polymeric glass fibre sizings

Characterisation of glass fibres used in automotive industry for SMC body panels

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