scholarly journals Aminolysis of poly(ethylene terephthalate) waste bottle with tetra/hexamethylene diamine and characterization of alpha, ohmega-diamine products

2017 ◽  
Vol 1 (T2) ◽  
pp. 101-113
Author(s):  
Cuong Ngoc Hoang ◽  
Yen Hoang Dang
Keyword(s):  
Ethylene Terephthalate ◽  
Pet Waste ◽  
Hexamethylene Diamine ◽  
Poly Ethylene Terephthalate ◽  
Excess Amount ◽  
Aliphatic Diamines ◽  
Poly Ethylene

The aminolysis of poly(ethylene terephthalate) (PET) waste bottle with excess amount of aliphatic diamines, such as tetramethylenediamine (TMDA) and hexamethylenediamine (HMDA) without catalyst has been carried out. Each trimers and pentamers in the obtained products were isolated and characterized by FTIR, NMR, HPLC methods. Although an excess of diamine was employed, longer blocks of oligomers were still formed as minor products.

Synthesis and characterization of a poly(ether-ester) copolymer from poly(2,6 dimethyl-1,4-phenylene oxide) and poly(ethylene terephthalate)

2005 ◽  
Vol 99 (5) ◽  
pp. 2124-2131 ◽  
Author(s):  
B. García-Gaitán ◽  
M. del P. Pérez-González ◽  
M. C. Zárate-Acevedo ◽  
A. Martínez-Richa ◽  
G. Luna-Bárcenas ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Synthesis And Characterization ◽  
Phenylene Oxide ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Ether Ester

scholarly journals Preparation and characterization of poly(ethylene terephthalate) films coated by chitosan and vermiculite nanoclay

2018 ◽  
Vol 201 ◽  
pp. 392-401 ◽  
Author(s):  
Fatima Essabti ◽  
Alain Guinault ◽  
Sébastien Roland ◽  
Gilles Régnier ◽  
Saïd Ettaqi ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Synthesis And Characterization Of Branched Poly(Ethylene Terephthalate) Using Monomeric Branching Agent

2005 ◽  
Vol 9 (2) ◽  
pp. 36-37
Author(s):  
Sung-Ho Han ◽  
Seung Soon Im ◽  
Sung-Seen Choi ◽  
Soo Yoon Joung ◽  
Joung Soo Kim
Keyword(s):  
Ethylene Terephthalate ◽  
Synthesis And Characterization ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Characterization of virgin and recycled poly(ethylene terephthalate) (PET) fibers

2014 ◽  
Vol 106 (8) ◽  
pp. 800-806 ◽  
Author(s):  
Shan-Shan He ◽  
Meng-Yuan Wei ◽  
Min-Hua Liu ◽  
Wen-Liang Xue
Keyword(s):  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Pet Fibers ◽  
Poly Ethylene

Polyurethane resin derived from polyol of palm olein and recycled poly(ethylene terephthalate)

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Abbas Ahmad Adamu ◽  
Norazilawati Muhamad Sarih ◽  
Seng Neon Gan
Keyword(s):  
Thermal Stability ◽  
Palm Olein ◽  
Ethylene Terephthalate ◽  
Alkali Resistance ◽  
Pet Waste ◽  
Content Type ◽  
Pet Bottles ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Excellent Adhesion

Purpose Poly(ethylene terephthalate) (PET) waste from soft drink bottles was incorporated into palm olein alkyd to produce new polyol for use in polyurethane resins as surface protection on metal surfaces. Design/methodology/approach Alkyd was prepared from palm olein, glycerol and phthalic anhydride. PET underwent simultaneous glycolysis and transesterification reactions with the alkyd. Varying the amount of PET has led to polyols with different viscosities. Polyurethane resins were produced by reacting the polyols with toluene diisocyanate. The resins were coated on mild steel panels and cured. Performances of the cured films were tested. Findings The polyurethanes (PU) resin cured to a harder film with better thermal stability. Films showed excellent adhesion properties, while higher content of PET exhibited higher pencil hardness, better water, salt, acid and alkali resistance. Research limitations/implications Other vegetable oils could also be used. The alkyd structure could be changed by formulation to have different functionality and the ability to incorporate higher amount of PET waste. Rate of glycolysis of PET could be increased by higher amount of ethylene glycol. Practical implications This method has managed to use waste PET in producing new polyol and PU resins. The cured films exhibit good mechanical and chemical properties, as well as excellent adhesion and thermal stability. Social implications The non-biodegradable PET has created environmental pollution problems connected to littering and illegal landfilling. It has become necessary to pay greater attention to recycling PET bottles for obtaining valuable products. Originality/value This approach is different from the earlier reports, where PET was recycled to recover the raw materials.

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