Life Cycle Assessment of Japanese High-Temperature Conductive Adhesives

Andrae, Anders; Itsubo, Norihiro; Yamaguchi, Hiroshi; Inaba, Atsushi

doi:10.1021/es0709829

Cited by 25 publications

(25 citation statements)

References 38 publications

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“…Environmental life cycle assessment conducted showed that majority of the CO2 emission came from a silver-epoxy based ECA compared with the tin-bismuth ECA. The researchers recommended that in order to save resources and decreases CO2 emissions, the recycling of printed board assemblies using silver-epoxy based ECA was suggested (Andrae et al, 2008).…”

Section: Environmental Effectsmentioning

confidence: 99%

Environmental effects and economic analysis of adhesives: a review of life cycle assessment (LCA) and techno-economic analysis (TEA)

Yang¹,

Rosentrater²

2015

2015 ASABE International Meeting

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In this paper, adhesives made either from fossil fuels or biological sources were examined. The purpose of this review was to investigate the development, processing, and production of bio-adhesives, especially key information about environmental and economic impacts of these types of adhesives. Specifically, the literature was reviewed in terms of life cycle assessment (LCA) and techno-economic analysis (TEA) in order to evaluate the environmental effects, economic performance and potential market acceptance. Several key parameters for life cycle analysis will be compared, such as resource consumption, ecosystem quality and human health; As for TEA, capital costs, operational costs, and unit costs will be explored, as well as the breakeven points. Underlying issues in LCA and TEA will be discussed, and we will examine areas needed for improvement for emerging biobased adhesives.

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Section: Environmental Effectsmentioning

confidence: 99%

Environmental effects and economic analysis of adhesives: a review of life cycle assessment (LCA) and techno-economic analysis (TEA)

Yang¹,

Rosentrater²

2015

2015 ASABE International Meeting

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“…The LCA studies for conductive adhesives (Andrae et al 2008) and cooling modules use 50/50 allocation together with recycled contents and recovery efficiency. The formulae for calculating impact for the metals in ALCA and AALCA (I ALCA, metals and I AALCA, metals ) are shown in Eqs.…”

Section: /50 Allocation and Global Change MIX Factorsmentioning

confidence: 99%

Method based on market changes for improvement of comparative attributional life cycle assessments

Andrae

2014

Int J Life Cycle Assess

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Purpose Current comparative life cycle assessment (LCA) studies claim to answer whether it is better or worse for the environment to change from old to new systems. Most commonly, the attributional LCA (ALCA) is practised despite its limitations to describe market effects. Hence, an attempt is done here to include market effects in the ALCA practice for comparisons in order to improve ALCA. The purpose is neither to investigate which LCA concept, ALCA, consequential LCA or decisional LCA, is the best for comparisons nor which is the best for decision-making. Methods Here, for the first time, a method based on marked changes which can be used for sensitivity checks of comparative ALCAs, advanced ALCA (AALCA) is presented. The new concept of global change mix factors (GCMF) is introduced. The method, based on accessible market data, is applied to previous comparative ALCAs of conductive adhesives, cooling modules used in radio base stations, office computing systems, as well as personal devices usage, here represented by multifunctional smartphones replacing other devices such as digital cameras. Results and discussion The results show that AALCA based on market data improves the understanding and can act as a sensitivity check of comparative ALCA results. For declining markets of products, with relatively high eco-environmental impacts, the difference between comparative AALCA and ALCA can be significant. As AALCA is founded in marginal electricity thinking and uses market data, there are similarities between AALCA and simplistic consequential LCA (CLCA).However, AALCA is not intended to replace CLCA or decisional LCA (DLCA). Conclusions By applying allocation factors, GCMF, based on real or future market changes, the interdependence of global markets and micro-level LCA shifts can be taken into account in comparative micro-level ALCA studies and make them more robust. Further, the sensitivity of using price units instead of physical units, as the basis for the GCMF, should be investigated. The degree to which AALCA and CLCA can complement each other should be examined. Also, the degree to which the GCMF used in AALCA-H address rebound effects should be further explored. The annual ecoenvironmental impacts of mobile devices towards 2020 are also of interest, and more LCA case studies are welcome.

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“…The reported scores for the waste phase depend very much on the scenario: dumping on a landfill can have a score similar to the manufacturing and use phase, while the score for proper WEEE treatment scores lower or even negative (environmental benefit due to recycling). LCA studies on the improper treatment of WEEE in developing countries are extremely rare (Andrae et al 2008).…”

Section: Introductionmentioning

confidence: 99%