Page 82 - Materials Chemistry, Second Edition

Pakistan (11 000 km)
Taiwan (7000 km)
Transport to Australia From Italy (16 000 km) From Japan (8000 km) 50% from Germany (16 000 km) and 50% from USA (13 000 km) From Malaysia (6000 km) Concentrate from Canada (16 000 km) and 50% of bags from Malaysia (6000 km) 50% from USA (13 000 km) and 50% from Japan (8000 km) Hong Kong (7000 km) Life cycle assessment and waste manage

N/A
N/A
N/A
Quantity of bags per year adjusted in relation to expected life 520 520 520 520 520 520 520 520 4.15 1.65 26 9.1

Use of bags Expected life Single trip Single trip Single trip Single trip Single trip Single trip Single trip Single trip 104 trips (2 years) 104 trips (2 years) 10 trips (1 year) 52 trips (1 year)

Quantity of bags per week in relation to relative capacity 10 10 10 10 10 10 10 10 8.3 3.3 – 9.1 LDPE, low density polyethylene; HDPE, high density polyethylene; N/A, not applicable; PE, polyethylene; PLA, polylactic acid; PP, polypropylene; PBS/A, starch polybutylene

Characteristics of the use of all bags Weight Relative (g) A capacity 1 (6–8 items) 8.1 1 (6–8 items) 6 1 (6–8 items) 6 1 (6–8 items) 6 1 (6–8 items) 6 1 (6–8 items) 8.1 1 (6–8 items) 6 1 42.6 1.2 PP 65.6 Nylon base 50.3 3 130.7 2 40 1.1 125.4 A Based on the mass required to perform the same function as an HDPE singlet bag succina

Table 6.7 Degradable polymers (Starch-PBS/A) (Starch-PBAT) (Starch-polyester) (Starch-PE) - (oxo-biodegrad able) PLA Singlet HDPE Kraft paper bag with handle PP fibre ‘green bag’ Woven HDPE ‘swag bag’ LDPE ‘bag for life’ Calico bag

100804•Life Cycle Assessment 5pp.indd 69 17/02/09 12:46:18 PM