Application to refrigerator plastics by mechanical recycling from polypropylene in waste-appliances

Ha, Kyung Ho; Kim, Moon Saeng

doi:10.1016/j.matdes.2011.08.014

Cited by 37 publications

(24 citation statements)

References 24 publications

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“…PP has a high resistance to chemical attack due to its non-polar nature [79]. For example, PP is resistant to alcohol, organic acids, esters and ketones, inorganic acids and alkalis.…”

Section: Degradation Of Plastic Fibres In Concretementioning

confidence: 99%

Use of macro plastic fibres in concrete: A review

Yin

Tuladhar

Shi

et al. 2015

Construction and Building Materials

324

176

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Use of macro plastic fibres to reinforce concrete has attracted widespread attention from both scientists and construction industry due to the multiple sustainability benefits they offer, compared to steel fibres and steel reinforcing mesh. This paper critically reviews the current state of knowledge and technology of using macro plastic fibres to reinforce concrete. Detailed review on the various preparation techniques and the resulting properties of macro plastic fibres are presented and the effects of macro plastic fibres on the fresh and hardened concrete properties are discussed in this paper. The effect of macro plastic fibres on workability, plastic shrinkage, compressive strength, splitting tensile strength, flexural strength, post-crack performance and dry shrinkage is discussed in this paper. Pull-out behaviour and degradation behaviour of the fibre in the concrete are also reviewed. Finally, some applications of the plastic fibre reinforced concrete are discussed.

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“…PP has a high resistance to chemical attack due to its non-polar nature [79]. For example, PP is resistant to alcohol, organic acids, esters and ketones, inorganic acids and alkalis.…”

Section: Degradation Of Plastic Fibres In Concretementioning

confidence: 99%

Use of macro plastic fibres in concrete: A review

Yin

Tuladhar

Shi

et al. 2015

Construction and Building Materials

324

176

View full text Add to dashboard Cite

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“…However, after repetitive reprocessing for a low numbers of cycles, Young modulus and yield stress of the recycled PP increase due to augmentation of crystallinity , while recycled PE can keep relatively unchanged mechanical properties because of constant crystallinity . Ha and Kim successfully applied recycled PP as refrigerator plastics due to the comparable mechanical properties with the virgin PP, and obtained about 50% cost‐merit.…”

Section: Degradation Crystallization and Processability Of Polyolefmentioning

confidence: 99%

Mechanical reprocessing of polyolefin waste: A review

Yin

Tuladhar

Shi

et al. 2015

Polymer Engineering & Sci

160

112

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Efficient technology and applications for recycled polymer waste has become increasingly important to decrease environmental contamination and to conserve nonrenewable fossil fuels. Mechanical recycling is the most widely practiced in Australia, since it is relatively easy and economic; and moreover, infrastructure for collection and reprocessing has been well established. In order to improve quality of end products of recycled plastics, various workable reprocessing techniques in the second stage of mechanical recycling have been developed and widely applied in the recycling industry. This article critically reviews the current reprocessing techniques of recycled polyolefins. Reprocessing recycled polyolefins is always accompanied with degradation, crystallization, and consequent processability problems, which result from molecular chain scission, branching, and crosslinking. The present state of knowledge and technology of various reprocessing techniques, including melt blending, filler reinforcement and mechanochemistry, is then described and evaluated systematically. Each reprocessing technique presents its own individual advantages and special applications. POLYM. ENG. SCI., 55:2899-2909, 2015

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“…However, after repetitive reprocessing for a low numbers of cycles, Young's modulus and yield stress of the recycled PP increase due to augmentation of crystallinity (da Costa et al, 2007). Ha and Kim (2012) successfully applied recycled PP as refrigerator plastics due to the comparable mechanical properties with the virgin PP, and obtained about 50% cost-merit. Aurrekoetxea et al (2001) mimicked procedures of recycling PP through repetitively injection moulding for several cycles.…”

Section: Crystallisation Behaviour and Mechanical Propertiesmentioning

confidence: 99%

“…Various types of plastic fibres for pull-out tests (Oh et al, 2007) 2.2.2.2.7. Degradation of Plastic Fibres in Concrete PP has a high resistance to chemical attack due to its non-polar nature (Ha and Kim, 2012). For example, PP is resistant to alcohol, organic acids, esters and ketones, inorganic acids and alkalis.…”

Section: Fig 227mentioning

confidence: 99%