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Product performance
Dioctyl terephthalate (DOTP) is the excellent plasticizer for PVC plastic, compared with the commonly used diisooctyl phthalate (DOP), it has the advantages such as heat resistance, cold resistance, difficult to volatilize, soft, good electric insulating property, etc. The products has good durability, and low temperature softness. It can be extensively used in cable materials resisting to 70°C (IEC standard) and other PVC soft products.DOTP can be used in cable materials, PVC plasticizer and in the production of artificial leather film. In addition, it has excellent intermiscibility, it can be used in the plasticizer of acrylonitrile derivative, polyvinyl butyral, nitrile rubber, nitrocellulose, etc. It can also be used in the plasticizer of synthetic rubber, coating additive, lubricant for precise instrument, and the softener of paper.
The comparison of the property of DOTP and DOP
Item DOTP DOP
Appearance Pale yellow transparent oily liquid Colorless transparent oily liquid
Density (20o0C) g*cm3 0.984 0.982
Refractive index /n 1.1687 1.4850
Boiling point /0.8kPa, ℃ 400 370
Freezing point / ℃ -48 - 50
Viscosity /25℃，Pa 63×103 56.5×103
/0 ℃, Pa 410×103 207×103
Volume resistivity /20℃，Ω·cm 4.6×1011 1.9×1011
Flash point / ℃ 210 190
Acidity /mgKOH 0.09 0.05
Product features and usage
1. DOTP has good electric and thermal properties, it can be used in the production of artificial leather film. In addition, it has excellent compatibility, and used in the plasticizing of acrylonitrile derivative, PVB, nitrile rubber, nitrocellulose, etc. As softener in nitrile rubber, chloroprene rubber, EPDM and other products. Has significant plasiticizing effect and low volatility in cable materials, it is widely used in the products requiring heat resistance and high insulation, it is the ideal plasticizer in the production of cable materials resisting to 70℃ and other PVC products resisting to volatilization.
2. DOTP is the PVC product used in the passenger car, it can solve the fogging problem of the glass window. DOTP can also be used in the paint and coating of high-ranking furniture and interior decoration, high-quality lubricant or lubricant additive of precise instrument, additive for nitrocellulose varnish, paper softener , etc.
3. The linear molecular structure of DOTP is similar to DOS and DOA, so it has good cold resistance.
4. The volume resistivity of DOTP is 10-20 times higher than DOP, and has excellent mobilization resistance.
5. Phthalates free, DOTP is an excellent ecological plasticizer. |
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