PVB Sheet Recycling and Degradation

Tupý, Michael; Měřínská, Dagmar; Kašpárková, Věra

doi:10.5772/36838

Cited by 6 publications

(9 citation statements)

References 3 publications

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“…For the numerical analysis of laminated glass and interlayer material in particular, elastic, hyperelastic, plastic, and viscoelastic models have been adopted for the deformation modelling [17]. Interlayer materials for laminated glass have been extensively characterized in experimental studies, mainly regarding ageing resistance [28,29,44,[51][52][53][54][55][56], mechanical properties [57][58][59][60][61][62] and recyclability [63][64][65][66]. The action of weather: moisture, temperature cycles, and solar radiation have been identified as key factors on physical and mechanical properties during the lifetime of the interlayer materials.…”

Section: Laminated Glassmentioning

confidence: 99%

Polymeric interlayer materials for laminated glass: A review

Martín

Centelles

Solé

et al. 2020

Construction and Building Materials

110

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Laminated glass is obtained by bonding two or more glass layers using a polymeric interlayer.Compared to monolithic glass, laminated glass is beneficial in terms of post-breakage safety, security against break-ins, and acoustic insulation, among others. That is why laminated glass is being used for a wide variety of constructive solutions. Polymers such as PVB, ionomers, EVA and TPU are used as interlayer materials in laminated glass. This review aims to describe the most common polymeric interlayers, outline its characterization techniques, and give a general overview about the recyclability of the interlayers. There are two main properties used to characterize the interlayer materials: mechanical properties and resistance to ageing factors. Main mechanical tests found in the literature are summarized, and the properties studied in each of them are listed. Most experimental studies regarding ageing resistance consider mainly three weathering agents: humidity, UV radiation, and temperature.

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Section: Laminated Glassmentioning

confidence: 99%

Polymeric interlayer materials for laminated glass: A review

Martín

Centelles

Solé

et al. 2020

Construction and Building Materials

110

View full text Add to dashboard Cite

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“…Due to these characteristics, it is often placed between two sheets of glass resulting in a laminate for car windshields with both excellent optical and shatterproof mechanical properties. 5 PVB sheets for glass lamination processes are mostly supplemented with 20-25 wt% of plasticizer. It is often plasticized with butyl ricinoleate, dibutyl sebacate, glycerol trisebacate, triethylene glycol bis-(2-ethyl hexanoate), or castor oil.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the PVB film can also be recycled, which is an established process. 5,19,20 The properties of the recycled material are determined by the material used, and solid impurities like dust and glass fragments must be separated prior to the recycling process. 21 Using recycled PVB (r-PVB) in car windshields is difficult and only successful when mixed with the virgin polymer because the PVB sheet degrades during its lifetime and during the recycling process.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the exact amount of plasticizer in the recycled resin and molecular weight of the polymer are not known due to elimination and degradation reactions. 5 Therefore, the recycled material needs to be blended with up to 40 wt% virgin PVB for use in safety glass laminates as well as carpet backings and leather composites. 11,22,23 To our knowledge, recycled PVB formulation are scarcely used for other textile applications so far.…”

Section: Introductionmentioning

confidence: 99%

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Coatings with recycled polyvinyl butyral on polyester and polyamide mono- and multifilament yarns

et al. 2021

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Polyvinyl butyral is used in safety glass interlayers, mainly in car windshields. Legislative regulations require a recycling of cars after their lifetime and therefore also their safety glass. This causes the availability of recycled polyvinyl butyrate (r-PVB) originated from safety glass interlayers. Due to deteriorated optical properties, such as the transparency, and unknown amounts of plasticizers, it is challenging to reuse the recycled material in new windshields. Therefore, it is of particular interest to find new fields of application for r-PVB, such as the usage as a textile coating. In this research, r-PVB was investigated as a material for yarn coating. Polyester and polyamide mono- and multifilament yarns were coated continuously with solely a polymer dispersion and with mixtures of crosslinking agent and polymer dispersion. Crosslinked r-PVB coatings showed enhanced properties toward abrasion and chemical resistance. Coatings without the crosslinking agent showed a diminished abrasion resistance and could be washed off with ethanol. Mechanical properties of the monofilaments were influenced by the r-PVB coating in general. However, varying concentrations of the crosslinking agent did not affect the mechanical properties.

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“…The innovative breaking-crushing machinery allows the separation of those materials during screening. Thus, the resulting effect is detached PVB films in the form of large-sized pieces contaminated by fine glass powder [1][2][3] into the sieved-out shards of glass contaminated by tiny PVB foil slivers. Consequently, PVB contamination excludes waste from new glass production, but the recycled glass can be used once again; for example, the recycled glass may be used as an addition to concrete-based materials or in the insulation of manufacturing glass fibers.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Physical Properties of Light-Weight Ceramic Aggregates Prepared from Waste Materials

Godzierz

Adamczyk

Pawlik

et al. 2018

Waste Biomass Valor

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This paper presents mechanical and physical properties of light porous aggregates obtained from local waste materials. Granules were produced from a mixture of aluminosilicate-based coalmine slates and car windshield glass that was contaminated by the polyvinyl butyral foil. The initial waste material ratio modification significantly alters physical and mechanical properties of obtained ceramic granules to the extent of the critical amount of added windshield glass powder. The temperature of the heat treatment affects the granules' properties and demonstrates the microstructure and phase crystallization control possibilities. The critical value of the windshield glass concentration was determined to be at a level of 30%, considering the relationship between mechanical and physical properties when large porosity is essential in further application. On the other hand, if the glass-to-slates weight ratio was equal and a sufficient thermal treatment was applied, a core-shell macrostructure formation and occlusion of pores occurred.

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PVB Sheet Recycling and Degradation

Cited by 6 publications

References 3 publications

Polymeric interlayer materials for laminated glass: A review

Polymeric interlayer materials for laminated glass: A review

Coatings with recycled polyvinyl butyral on polyester and polyamide mono- and multifilament yarns

Mechanical and Physical Properties of Light-Weight Ceramic Aggregates Prepared from Waste Materials

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