Performance testing of a green plasticizer based on lactic
In addition, ALCH could endow PVC products with excellent performance of strength, elongation and elasticity. With the substitution of ALCH for ATBC, glass transition temperature (Tg) of PVC films decreased gradually from 61.3°C to 55.0 °C. The self-polymerization of lactic acid gives ALCH better plasticizing effectiveness than ATBC.
Performance testing of a green plasticizer based on lactic
The plasticizers were scanned from 50 °C to 400°Cand the PVC samples to 600 °C under a nitrogen atmosphere at a heating rate of 20 °C/min. Differential scanning calorimetry (DSC) of the PVC samples was performed from 20 °C to 200 °C (10 °C/min) using a MettlerDSC822e instrument (Mettler-Toledo Co., Switzerland).
Performance testing of a green plasticizer based on lactic
In order to develop alternative green plasticizers, a bio-based plasticizer, acetylated lactic acid 1,4-cyclohexanedimethyl ester (ALCH), with novel molecule geometry was synthesized...
Synthesis and properties of a bio-based PVC plasticizer
A novel green plasticizer, acetylated lactic acid 1,6-hexane diester (ALHD), was successfully synthesized based on L -lactic acid, a renewable organic acid from corn starch. Its chemical structure was characterized using FTIR, 1 H NMR and matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS).
Synthesis of novel plasticizer ester end-capped oligomeric
In this work, a novel high efficiency plasticizer, an ester-capped oligomeric lactic acid mixture (EOL), was successfully synthesized by a two-step esterification reaction, with L -lactic acid as the main raw material. The structure of EOL was characterized by using FT-IR, 1 H NMR and time of flight mass spectrometry (TOF-MS).
- Is lactic acid based plasticizer suitable for PVC and PLA?
- In this paper, a lactic acid based plasticizer suitable for PVC and PLA was synthesized by a two-step esterification reaction with lactic acid as the main raw material, and compared with commercial plasticizers dioctyl terephthalate (DOTP), diisononyl cyclohexane dicarboxylate (DINCH) and diethylene benzoate (DEDB).
- Are plasticizers compatible with water based and acidic food?
- From Fig. 13 (a) (b), it can be seen that within 240 h, all plasticized PVC films could maintain low mass loss in deionized water and 3% (W/V) acetic acid solution, all within the safe range of 5%. These results indicate that the four plasticizers were closely compatible with PVC matrix when they were in contact with water-based and acidic food.
- How to evaluate the plasticizer effect of PVC & PLA blends?
- Its structure was characterized by 1 H NMR, FT-IR and TOF-MS. Thermogravimetric analysis (TGA), tensile test and leaching test were used to evaluate the plasticizer effect of PVC or PLA blends. Compared with commercial plasticizers, CTLE showed more outstanding thermal stability, flexibility and migration stability.
- How to determine thermal stability of plasticizer and plasticized PVC film?
- The thermal stability of plasticizer and plasticized PVC film is an important parameter for its practical application. In order to determine the thermal properties of plasticizer and plasticized PVC film, thermogravimetric analysis (TGA) was used to study. Fig. 8 shows the thermogravimetric curves of different plasticizers.
- Can ctlE Plasticized PVC film reduce the Tg of pure PVC?
- The performance test results show that, CTLE plasticized PVC film has excellent stability (thermal stability and migration stability), and can reduce the Tg of pure PVC (Tg CTLE-50 = 24.6 °C).
- Why is ctlE Plasticized PVC film more suitable for high temperature environment?
- To sum up, compared with the other three commercial plasticizers, CTLE plasticized PVC film was more suitable for application in high temperature environment. This may be because the CTLE molecule has a chain-like structure that can reduce escape by winding with the PVC chain.
