In this article, we investigated effect of carrier resin ratio and anti-oxidation additives content on properties of anti-oxidant additives Masterbatchs (MBs). The characteristics were measured by: melt flow index (MFI), morphology (SEM), tensile strength and elongation at break. | Vietnam Journal of Science and Technology 56 (2A) (2018) 56-62 PREPARATON OF MASTERBATCH CONTAINING ANTI-OXIDATION ADDITIVE: EFFECT OF CARRIER RESIN RATIO AND ADDITIVES CONTENT Duong Thi Thao1, Nguyen Phi Trung1, Hoang Thi Huong1, Tran Vu Thang2, Nguyen Van Khoi2, *, Trịnh Duc Cong2, Hoang Thi Phuong2 1 2 Institute of Research and Development on Novel Materials, 350 Lac Trung, Hai Ba Trung, Ha Noi Institute of Chemistry, VAST,18 Hoang Quoc Viet, Cau Giay, Ha Noi * Email: khoinguyen56@ Received: 28 March 2018; Accepted for publication: 10 May 2018 ABSTRACT In this article, we investigated effect of carrier resin ratio and anti-oxidation additives content on properties of anti-oxidant additives Masterbatchs (MBs). The characteristics were measured by: melt flow index (MFI), morphology (SEM), tensile strength and elongation at break. The results indicated that: increasing LLDPE content in carrier resin led to decreasing mechanical properties, MFI weren’t uniform in MBs. With 80/20 of LDPE/LLDPE ratio, the tensile strength and elongation at break values were highest ( MPa, %). In addition, when increased anti-oxidant additives content, mechanical properties increased to upper limit value, then decreased. With 25 wt.% of anti-oxidant additives, the tensile strength and elongation at break values were highest ( MPa, %), MFI were uniform in MBs (12 g/10 m). SEM images were evidence of greatly distribution in sample containing 25 wt.% additives. Consequently, the 90/10 of LDPE/LLDPE ratio, 25 wt.% anti-oxidant additives were selected to prepare MBs. Keywords: anti-oxidation master batch, carrier resin, LDPE, LLDPE. 1. INTRODUCTION Plastics industry has important role in our life. Plastics products has many advantages: flexible, good mechanical properties, good resistance to water, acid-base resistance, easy to manufacture various products by different processing, such as: injection molding, extrusion, blow molding, etc. However, in .
