Application of recycling procedure of waste plastics into materials used in in agriculture and forestry to minimize their impact on the environment

Overall goals: A recycling procedure of waste plastics into useful materials used in agriculture and forestry to minimize their impact on to environment will be achieved. Trials will be also established.

Detailed objectives: Establish a recycling procedure of waste plastics into oxo-biodegradable nursery container with capacity of 20kg/h. Production of 100kg of oxo-biodegradable nursery container and establishment of 03 trials of cuttings.

Theoretical results:

• Oxo- biodegradable nursery container: 13x15cm size, 35-40µm thickness, biodegradation starts after about 4-6 months, tensile strength of 20.41-22.01MPa, elongation at break of 617.46-691.76%, compressive strength of 100-110MPa, flexural strength of 110-120MPa, specific density 1.10-1.20g/cm³, moisture content of 0.23-0.49%.
• 01 technical documents review
• 03 sets of survey data of management measures of waste plastic in some provinces and cities in the North.
• 01 recycling procedure of waste plastics into oxo-biodegradable nursery container with capacity of 30 kg/h.
• 03 trials of oxo-biodegradable nursery container for three species cuttings with scale of 11.000 seedlings/species (pine, eucalyptus and acacia seedlings)
• 03 scientific report describes the results of trials of oxo-biodegradable nursery container for three species cuttings (pine, eucalyptus and acacia seedlings)

Applied results:

• Appreciate paper of trials results of oxo-biodegradable nursery container for three species cuttings from Viet The Company Limited.
• Appreciate paper of field trials results of foresting 3 species seedlings in oxo-biodegradable nursery container from Nga Hoa Private Company.

A recycling procedure of waste plastics into oxo- biodegradable nursery container was established, contributing to the scientific and technological solutions for environmental protection and sustainable development.

Scientific papers in referced journals (list):

• Nguyen Quang Huy, Pham Thi Thu Trang, Nguyen Van Khoi, Nguyen Thanh Tung, Vu Tien Thang, Nguyen Lien Phuong, "Effect of pro-oxidant on the thermo- oxidative degradation of polyethylene films containing recycled material", Journal of Science and Technology, Vol.53 (3A), 241-246, 2015.
• Nguyen Quang Huy, Pham Thi Thu Trang, Nguyen Lien Phuong, Nguyen Van Khoi, Nguyen Thanh Tung, "Effect of pro-oxidant on the thermal- oxidative degradation of cassava starch filled polyethylene", Journal of Chemistry, Vol.53 (6e1, 2), 361-365, 2015.

Technological products (describe in details: technical characteristics, place):

• Oxo- biodegradable nursery container samples stored at Lab. of Polymer Materials - Institute of Chemistry.
• Internal examination document included: final report, mission document, publication and post- graduate training… was kept at Institute of Chemistry.

Other products (if applicable): Training support 01 graduate students under Decision No. 4773/QĐ-KHTN dated 11/11/2013 of Dean of College of Natural Science - VNU (defended in February 2016)

• Viet The Company Limited, Tan Linh, Ba Vi, Ha Noi
• Nga Hoa Private Company, An Chau, Son Dong, Bac Giang.