The green bio - based plasticizers have been fully proven in the practical production of special textiles:
1. The plasticizing efficiency is extremely high. Compared with DOP, the ratio is as high as 13. That is, if 39 parts of DOP are added, only 30 parts of this product are needed to achieve the plasticizing effect. In this way, the addition of flame retardants is effectively reduced, thereby reducing production costs.
2. It has good thermal stability, ensuring normal production and processing. When placed in an oven at 190 degrees for 100 minutes, there is no obvious color change (yellowing).
3. It has successfully solved the compatibility problem with PVC and has excellent weather resistance. According to the ASTM G - 154 test standard, when the bio - based samples are placed in a QUV test chamber for 1,200 hours, there is no obvious color change, and no oil exudation is observed on the surface of the sample pieces
Among them, for the transparent sheets, the bio - based plasticizers from a Japanese company and a French company, as well as the phthalate plasticizer DINP, always have a very dark color and are a bit reddish. The color of TOTM is also relatively red, and this is particularly obvious after 20 minutes. Citrate esters are severely deformed when heated.
For the natural - colored sheets, the bio - based plasticizer from a Japanese company turns black after 30 minutes; the bio - based plasticizer from a French company turns black after 20 minutes; the color of the phthalate plasticizer DINP darkens after 20 minutes; the color of TOTM starts to darken from 50 minutes; the citrate esters start to turn red at 70 minutes and turn black after another 20 minutes; the bio - based plasticizer from a German company and DOTP start to turn red after 20 minutes.
Among them, for the transparent sheets, the bio - based plasticizers from an American company and a French company, as well as citrate esters, crack and their colors darken after 24 - hour acceleration.
（QUV-154）
In the transparent sheets, the exudation of TOTM, citrate esters, DOTP, and the bio - based plasticizer from a German company is particularly severe. The bio - based plasticizer turns red as a whole; DOTP turns red under light exposure, while the bio - based plasticizers from a German company, an American company, and a Japanese company show slight oil exudation on the surface.
Record of exudation
After the transparent sheets are irradiated by QUV, the oil exudation of the bio - based plasticizer from an American company is relatively obvious, followed by that of the bio - based plasticizer from a Japanese company. The bio - based plasticizers from a French company and citrate esters show slight oil exudation. Jiqing EP - 13A - B, Jiqing EP - 14W, DOTP, and the bio - based plasticizer from a German company have almost no exudation.
