Plasticizer composition, resin composition and methods of preparing the same

A plasticizer composition for a polyvinyl chloride comprising:

• a cyclohexane 1,4-diester-based material;
• and
• a dibenzoate-based material,
• wherein the plasticizer composition is comprised in an amount of 40 to 130 parts by weight relative to 100 parts by weight of the polyvinyl chloride,
• wherein a weight ratio of the cyclohexane 1,4-diester-based material to the dibenzoate-based material included in the plasticizer composition is 90:10 to 50:50,
• wherein the cyclohexane 1,4-diester-based material is a single compound or a mixture of two or more selected from the group consisting of butyl(2-ethylhexyl) cyclohexane-1,4- diester (1,4-BEHCH), (2-ethylhexyl) isononyl cyclohexane-1,4-diester (1,4-EHINCH), butyl isononyl cyclohexane-1,4-diester (1,4-BINCH), dibutyl cyclohexane-1,4-diester (1,4-DBCH), diisononyl cyclohexane-1,4-diester (1,4-DINCH) and di(2-ethylhexyl) cyclohexane-1,4-diester (1,4-DEHCH), and
• wherein the dibenzoate-based material is one or more selected from the group consisting of diethylene glycol dibenzoate (DEGDB), dipropylene glycol dibenzoate (DPGDB) and triethylene glycol dibenzoate (TEGDB).