Formaldehyde emission from PVC–wood composites containing MDF sanding dust

Chaharsoughi, Mahdi Ansari; Najafi, Saeed Kazemi; Behrooz, Rabi

doi:10.1002/vnl.21637

Cited by 5 publications

(3 citation statements)

References 12 publications

(10 reference statements)

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“…The performance of the polymer concrete is strongly dependant on various types and mixed proportion of aggregates and resins. [ 7,8 ] For these unique properties, polymer concretes are used in various applications including floor, pavement, repairing concrete structure, highway median barriers, acid tank, electric culverts, drains and precast products. [ 9 ] Previous studies have investigated the performance analysis of the polymer concrete and the loading of polymer in the concrete in order to cost reduction.…”

Section: Introductionmentioning

confidence: 99%

Influence of hydration on the mechanical, structural, thermal, and morphological properties of cement filled epoxy composites

Daniel

Islam

Sumdani

et al. 2020

Vinyl Additive Technology

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Different loading of Portland cement (PC) (10, 20, 30, and 40 wt%) was used to produce epoxy-based polymer concrete. The optimum loading was used to prepare another sample using hydration in presence of air circulation. The polymer concretes were characterized in terms of mechanical, thermal, structural and morphological properties. The properties showed increasing trends after cement addition. Results showed that the tensile strength of the polymer concretes were improved by 37.2%, 115.5%, 165.9%, and 40.6% for loading of 10, 20, 30, and 40 wt% cement, respectively. In addition, the flexural strength of the polymer concretes was also enhanced and found maximum (175.3% higher) in 30 wt% concrete compared to neat epoxy. Other mechanical properties of the polymer concrete were also found increasing. Moreover, decomposition temperature was raised nearly 15 C for adding 30 wt% cement which was the maximum among the other polymer concretes. For the case of hydration in presence of air circulation, the prepared composite showed the highest tensile mechanical performance with improved surface topography. From the results, it was concluded that the addition of cement into the epoxy was very effective to produce polymer concretes.

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Section: Introductionmentioning

confidence: 99%

Influence of hydration on the mechanical, structural, thermal, and morphological properties of cement filled epoxy composites

Daniel

Islam

Sumdani

et al. 2020

Vinyl Additive Technology

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“…The highest tensile strength value of MDF powder-added PVC composites was found as 22.96 MPa for 10% MDF powder-added composite, while the lowest tensile strength value was determined for 20% MDF powderadded composite as being 19.9 MPa. Chaharsoughi et al (2018) produced wood plastic composites containing PVC and 10, 15, and 20% sanding dust of medium density fiberboard as a wood-based panel waste. They determined that the flexural strength of the composites considerably decreased with the 10% MDF sanding dust.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of furniture industry wastes in polymer composite production

Narlıoğlu

Salan

Çetin

et al. 2018

Mobilya Ve Ahşap Malzeme Araştırmaları Dergisi

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In this study, composite materials were produced by using PVC polymer matrix along with medium density fiberboard (MDF) waste and massive timber waste remained from the furniture industry. For the production of composite materials, each waste material was mixed with PVC polymer and then, they were converted into pellets by using a twin screw extruder and combined pelletizer. The obtained pellets were molded into composite boards in 250 x 250 x 2 mm dimensions via hot press molding technique. The mechanical properties of the produced composites were compared with each other and with pure PVC based board in order to determine whether they can be used in various applications. The result of the mechanical tests showed that the tensile strength value of 10% wood flour-added PVC composites had the highest tensile strength value of 24.51 MPa. On the other hand, the highest bending strength value of 61.20 MPa was found for composite material with 10% MDF powder. ÖzBu çalışmada, PVC polimer matrisi ile mobilya endüstrisi atıklarından orta yoğunluklu lif levha (MDF) ve masif kereste atıkları kullanılarak kompozit malzemeler üretilmiştir. Kompozit malzemelerin üretimi için her bir atık malzeme PVC polimeri ile çift vidalı bir ekstruder ve peletleyici kullanılarak pelet haline getirilmiştir. Elde edilen pelletler, sıcak pres kalıplama tekniği ile 250x250x2 mm boyutlarında kompozit levhalar haline getirilmiştir. Kompozitlerin çeşitli uygulamalarda kullanılıp kullanılamayacaklarını belirlemek için yapılan testler ile elde edilen kompozitlerin birbirleriyle ve saf PVC ile mekanik özellikleri karşılaştırılmıştır. Mekanik testlerin sonucu %10 odun unu katkılı PVC kompozitlerin çekme mukavemeti değerinin 24.51 MPa ile en yüksek çekme dayanım değerine sahip olduğunu göstermiştir. Öte yandan en yüksek eğilme direnci değeri, %10 MDF tozu katkılı kompozit malzemede 61.20 MPa bulunmuştur.Anahtar kelimeler: Mobilya endüstrisi atıkları, kompozit malzeme, PVC, MDF, mekanik özellikler

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“…Most of free formaldehyde will escape in the form of gas during the extrusion process but a part of free formaldehyde will be trapped in the composites. [29] Therefore, composites made from UF with a low free formaldehyde content are more beneficial to human health with the same amount of adhesive.…”

Section: Basic Properties Of Modified Uf Adhesivesmentioning

confidence: 99%

A novel biodegradable flowerpot prepared by fermented straw fiber and urea‐formaldehyde adhesive modified with keratin from waste feathers

Yong

Guan

et al. 2021

Vinyl Additive Technology

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The recycling and utilization of feather waste from animal husbandry and straw from agriculture is a worldwide problem. In this study, keratin was extracted from waste feathers and used to modify urea‐formaldehyde (UF) adhesive to obtain biodegradable adhesive for making straw flowerpots with high performance. The results showed that keratin could reduce free formaldehyde and improve the thermal stability of UF. Furthermore, the mechanical properties of the flowerpot with keratin were greatly improved. The observed performance enhancements were attributed to the excellent adhesiveness of the bonding interface. In addition, the addition of keratin makes the flowerpot more hydrophilic and provides a better source of nutrients for microbes to grow and reproduce on the surface of the flowerpot, which is more conducive to the biodegradation of flowerpots after they are discarded. Our experiment suggests the great potential in terms of profitability and environmental protection by flowerpots prepared by fermented straw fiber and keratin‐modified UF.

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Formaldehyde emission from PVC–wood composites containing MDF sanding dust

Cited by 5 publications

References 12 publications

Influence of hydration on the mechanical, structural, thermal, and morphological properties of cement filled epoxy composites

Influence of hydration on the mechanical, structural, thermal, and morphological properties of cement filled epoxy composites

Evaluation of furniture industry wastes in polymer composite production

A novel biodegradable flowerpot prepared by fermented straw fiber and urea‐formaldehyde adhesive modified with keratin from waste feathers

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