Effects of UV-accelerated weathering and natural weathering conditions on anti-fungal efficacy of wood/PVC composites doped with propylene glycol-based HPQM

Srimalanon, Panupong; Yamsaengsung, W.; Kositchaiyong, Apisit; Wimolmala, Ekachai; Isarangkura, Khokhwan; Sombatsompop, Narongrit

doi:10.3144/expresspolymlett.2016.27

Cited by 19 publications

(16 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Differences in thermal behavior (e.g., changes in characteristic temperatures and in kinetics of the mass loss) were observed by thermogravimetric analysis (TG) for PP/starch blends (70/30 wt %) exposed for a period of 4 years to natural weathering that induced a loss of stabilizers and subsequent photodegradation [153]. Wood flour/PVC composites containing an antifungal agent lost flexural properties during UV-accelerated weathering aging and natural weathering, the effect being stronger under UV irradiation [154]. Thermoplastic starch obtained from agricultural waste imparted better resistance to natural weathering of PP blends for 6 months compared with starch of regular origin.…”

Section: Weathering and Accelerated Ageing Of Polymer Composites Withmentioning

confidence: 99%

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Brebu¹

2020

Polymers

152

View full text Add to dashboard Cite

Polymer composites are widely used modern-day materials, specially designed to combine good mechanical properties and low density, resulting in a high tensile strength-to-weight ratio. However, materials for outdoor use suffer from the negative effects of environmental factors, loosing properties in various degrees. In particular, natural fillers (particulates or fibers) or components induce biodegradability in the otherwise bio inert matrix of usual commodity plastics. Here we present some aspects found in recent literature related to the effect of aggressive factors such as temperature, mechanical forces, solar radiation, humidity, and biological attack on the properties of plastic composites containing natural fillers.

show abstract

Section: Weathering and Accelerated Ageing Of Polymer Composites Withmentioning

confidence: 99%

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Brebu¹

2020

Polymers

152

View full text Add to dashboard Cite

show abstract

“…Weathering studies are typically conducted to determine the threshold limit (i.e., degradation point) and to study the degradation of polymeric products and its effect on materials properties [3,4,20,26,[43][44][45]. In this work, accelerated weathering tests were carried out on the formulated blends from virgin and waste materials (i.e., V and B1-B5) to examine their durability and determine their threshold limits.…”

Section: Durability Of the Formulated Blendsmentioning

confidence: 99%

“…Weathering tests are typically performed to investigate the durability and integrity of polymers and have been extensively reported in the past for various polyolefins to study their degradation [1][2][3][4]. However, the behaviour and properties of materials after weathering are not always predictable and can always give way to tailor and engineer products depending on the applications intended.…”

Section: Introductionmentioning

confidence: 99%

Effect of Die Head Temperature at Compounding Stage on the Degradation of Linear Low Density Polyethylene/Plastic Film Waste Blends after Accelerated Weathering

Al–Salem

Al-Dousari

Abraham

et al. 2016

International Journal of Polymer Science

View full text Add to dashboard Cite

Accelerated weathering test was performed on blends of linear low density polyethylene (LLDPE) and plastic film waste constituting the following percentages of polyolefin polymers (wt.%): LLDPE (46%), low density polyethylene (LDPE, 51%), high density polyethylene (HDPE, 1%), and polypropylene (PP, 2%). Compounded blends were evaluated for their mechanical and physical (optical) properties. The impact of photodegradation on the formulated blends was studied, and loss of mechanical integrity was apparent with respect to both the exposure duration to weathering and waste content. The effect of processing conditions, namely, the die head temperature (DHT) of the blown-film assembly used, was investigated in this work. It was witnessed that surpassing the melting point of the blends constituting polymers did not always result in a synergistic behaviour between polymers. This was suspected to be due to the loss of amorphous region that polyolefin polymers get subjected to with UV exposure under weathering conditions and the effect of the plastic waste constituents. The total change in colour (ΔE) did not change with respect to DHT or waste content due to rapid change degradation on the material’s surface. Haze (%) and light transmission (%) decreased with the increase in waste content which was attributed to lack of miscibility between constituting polymers.

show abstract

“…Flexural properties were tested according to ASTM D790 (2010) using a universal testing machine (Autograph AG‐I; Shimadzu, Japan) to obtain the values of flexural modulus and flexural strength of the composites. The testing conditions were conducted at a crosshead speed of 1 mm/mm and support span of 25.4 mm.…”

Section: Methodsmentioning

confidence: 99%

Flame retardancy, antifungal efficacies, and physical–mechanical properties for wood/polymer composites containing zinc borate

et al. 2016

View full text Add to dashboard Cite

Summary This work aimed to examine flame retardancy, antifungal performance and physical–mechanical properties for silane‐treated wood–polymer composites (WPCs) containing zinc borate (ZnB). ZnB with content from 0.0 to 7.0 wt% was added to WPCs, and silane‐treated wood contents were varied. The polymers used were poly(vinyl chloride) (PVC) and high‐density polyethylene (HDPE). The decay test was performed according to the European standard EN 113. Loweporus sp., a white‐rot fungus, was used for antifungal performance evaluation. Antifungal performance was observed to decrease with wood content. Incorporation of ZnB at 1.0 wt% significantly increased the antifungal performance of WPCs. ZnB content of greater than 1.0 wt% lowered the antifungal properties of WPCs. The results suggested that the wood/PVC composite exhibited better antifungal performance than the wood/HDPE composite. The addition of wood flour to PVC and HDPE decreased flame retardancy, whereas the incorporation of ZnB retained the flame retardancy. ZnB was found to be more appropriate for wood/PVC than wood/HDPE as a result of hydrogen chloride generated from the dehydrochlorination reaction of PVC. The results indicated that the addition of ZnB did not affect the physical‐mechanical properties of neat polymers and the composites. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Effects of UV-accelerated weathering and natural weathering conditions on anti-fungal efficacy of wood/PVC composites doped with propylene glycol-based HPQM

Cited by 19 publications

References 33 publications

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Environmental Degradation of Plastic Composites with Natural Fillers—A Review

Effect of Die Head Temperature at Compounding Stage on the Degradation of Linear Low Density Polyethylene/Plastic Film Waste Blends after Accelerated Weathering

Flame retardancy, antifungal efficacies, and physical–mechanical properties for wood/polymer composites containing zinc borate

Contact Info

Product

Resources

About