Basalt fibers as functional additives in coating of textiles

Ruffen, Carolin; Mahltig, Boris

doi:10.1007/s11998-020-00383-8

Cited by 8 publications

(4 citation statements)

References 33 publications

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“…from iron or titanium [94, 100−103]. Basalt fibres can be also used as a coating additive to introduce UV-protective properties [103].…”

Section: Polyphenylene-benzobisoxazol (Pbo)mentioning

confidence: 99%

High-Performance Fibres – A Review of Properties and IR-Spectra

Mahltig

2021

TEKS

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High-performance fibres are fibre materials that exhibit at least one extraordinary property compared to con¬ventional fibre materials. That extraordinary property is frequently related to excellent fibre stability against certain influences such as fire, heat, chemicals or light. Also, a high mechanical strength is often a property of high-performance fibres. Nevertheless, it should be noted that high-performance fibres exhibit certain weak¬nesses in addition to their advantages. This review presents a broad overview of the most important high-per¬formance fibres, with a special emphasis on their chemical structure and related infrared spectra (IR-spectra). The categorization of the fibres according to chemical substance classes was performed to make it easy for the reader to find a fibre of interest. The main categories are polyethylene (PE) fibres, polyacrylonitrile (PAN) fibres, polyvinylalcohol (PVAL) fibres, polyester-based fibres, polyamide-based fibres, polyetheretherketone (PEEK) fibres, polyimide (PI) fibres, halogen-containing fibres, polyphenylene sulfide (PPS fibres), resin-based fibres and finally inorganic fibres. Competing materials are also discussed, and structural related materials can be easily identified. In addition to discussing fibre properties and selected applications, one of the main aims is to present a various number of IR-spectra as a tool for structural understanding and to help identify unknown fibres. Here, beside the IR-spectra of high-performance fibres, the reference IR-spectra of common fibres are presented for comparison.

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“…from iron or titanium [94, 100−103]. Basalt fibres can be also used as a coating additive to introduce UV-protective properties [103].…”

Section: Polyphenylene-benzobisoxazol (Pbo)mentioning

confidence: 99%

High-Performance Fibres – A Review of Properties and IR-Spectra

Mahltig

2021

TEKS

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“…However, fibrillation can be reduced by additives such as cross-linking agents or by selecting suitable reactive dyes [43,44]. Textile manufacturing and finishing generally offer a variety of options for reducing transmission in the UV and IR spectral ranges [45][46][47]. By this, protective properties against UV and IR light can be implemented.…”

Section: Introductionmentioning

confidence: 99%

Transmission Reduction for UV and IR Radiation with Dyed Lyocell Knitted Textiles

et al. 2023

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Sunlight is essential for humans. However, sunlight can be the source of several disadvantageous effects and illnesses, e.g., skin aging, sunburn, and skin cancer. Textiles with functional protective effects can counteract these problems. In the current research, knitted fabrics were produced from Lyocell yarns spin-doped with the inorganic UV absorber titanium dioxide TiO2. Lyocell yarns without TiO2 were used as reference materials. The produced knitted fabrics were dyed with different dyestuffs to improve the protective properties against UV light and infrared light. The protective properties are determined by optical spectroscopy in an arrangement of diffusive transmission. With the two dyestuffs Drimaren Yellow HF-CD and Solophenyl Bordeaux 3BLE, dyes were determined which complete UV protection and additionally reduce transmission in the near-IR range (700 nm to 1000 nm). TiO2 in the fibers enhanced this effect. In the UV range (280 nm to 400 nm), the transmission was almost zero with both dyes. Overall, the Lyocell samples containing TiO2 exhibit less sensitivity to abrasion and a UV protective effect after washing can be still determined. The weight loss after the abrasion test for these samples is quite low with only around 8.5 wt-% (10,000 rubbing cycles in the Martindale device). It is concluded that the right choice of dye can improve the protective effect of textiles against various types of radiation. Lyocell fiber-based textiles are suitable for the production of summer clothing due to their good moisture management. Compared to other radiation protective materials based on coating application, the presented solution is advantageous, because the textile properties of the realized products are still present. For this, a direct transfer to clothing application and use in apparel is easily possible. This study can be seen as the first proof-of-concept for the future development of light-protective clothing products.

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“…Our investigation has the objective of evaluating the potential of enzymatic PLA hydrolysis for the recovery of commercial basalt fibers (about 53% SiO2, 16% Al 2 O 3 , 10% Fe 2 O 3 , 9% CaO, and 5% MgO) from UD tapes. Due to the interaction between a fiber/nanoparticle surface and a polymer matrix [14][15][16][17], the cohesion between fiber and polymer molecules has an important influence on the degradation of the polymer matrix. The effect of inserted nanoparticles (TiO 2 and ZnO) on the degradation of PLA with proteinase K was studied by Antonella, Marra et al The increase of TiO 2 content in the PLA matrix increased the degradation rate of PLA compared to neat PLA.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Degradation of Fiber-Reinforced PLA Composite Material

2022

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Application of thermoplastic fiber-reinforced lightweight composite materials provides a wide range of advantages that are of particular importance for the mobility sector. UD tapes composed of unidirectionally (UD) oriented inorganic fibers embedded in a thermoplastic matrix represent light-weight materials with high tensile strength. This publication addresses recycling aspects of novel UD tape made of a combination of basalt fibers and different PLA (polylactic acid) formulations. The kinetics of enzyme-based separation of polymer from the fiber were investigated. Different types of UD tapes with a thickness of 270–290 µm reinforced with basalt fiber weight ratios ranging between 51 and 63% were incubated at 37 °C in buffer solution (pH 7.4) containing proteinase K. The influence of enzyme concentration, tape weight per incubation tube, proteinase K activators, and tape types on the rate of enzymatic decomposition was investigated. Enzyme activity was measured by analyzing lactate concentration with lactate dehydrogenase and by measuring weight loss of the composite material. The rate of lactate release increased in the first 30 min of incubation and remained stable for at least 90 min. Weight loss of 4% within 4 h was achieved for a tape with 56% (w/w) fiber content. For a sample with a surface area of 3 cm2 in a buffer volume of 10 mL, the rate of lactate release as a function of enzyme concentration reached saturation at 300 µg enzyme/mL. With this enzyme concentration, the rate of lactate release increased in a linear manner for tape surface areas between 1 and 5 cm2. Four tapes with different PLA types were treated with the enzyme for 17 h. Weight loss ranged between 7 and 24%. Urea at a concentration of 0.5% (w/v) increased lactate release by a factor of 9. Pretreatment of tapes in alkaline medium before enzymatic degradation increased weight loss to 14% compared to 5% without pretreatment. It is concluded that enzymatic PLA hydrolysis from UD tapes is a promising technology for the release of basalt fibers after alkaline pretreatment or for the final cleaning of basalt fibers.

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Basalt fibers as functional additives in coating of textiles

Cited by 8 publications

References 33 publications

High-Performance Fibres – A Review of Properties and IR-Spectra

High-Performance Fibres – A Review of Properties and IR-Spectra

Transmission Reduction for UV and IR Radiation with Dyed Lyocell Knitted Textiles

Enzymatic Degradation of Fiber-Reinforced PLA Composite Material

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