Novel application for trimesoyl amino compound
A technology of trimesisamide and trimesisamide, which is applied in the application field of trimesisamide compounds in polypropylene carbonate resins, can solve the problem of affecting processing and use, low glass transition temperature, polycarbonate Solve problems such as poor thermal stability of propyl ester, achieve the effect of improving thermal stability and performance
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Embodiment 1
[0034] 60 g of the polypropylene carbonate-based resin composition was added to a torque rheometer at a rotational speed of 40 rpm and a temperature of 120° C. for 900 s, and the torque and thermal weight loss were measured. See Table 2 below with figure 1 .
[0035] Table 2: Torque of Polypropylene Carbonate (PPC) Compositions at Different Addition Levels
[0036]
Embodiment 2
[0039] Add 60g of polypropylene carbonate resin composition (the content of No.8 is 0.5%) into the torque rheometer, the rotation speed is 40rpm, and the temperature is respectively at 120°C, 130°C, 140°C, 150°C, and 160°C Knead for 900s and measure the molecular weight. See Table 3 below.
[0040] table 3
[0041]
[0042] The polypropylene carbonate resin composition added with trimesisamide compound has high heat resistance, the molecular weight does not change much below 140°C, it is still solid after mixing, and the molding is good, while the blank resin After 900s, it shows a viscous flow state, and the degradation is extremely severe.
Embodiment 3
[0044] 60g of polypropylene carbonate-based resin composition (No.8 added in amounts of 0.5% and 1% respectively) was kneaded at 130°C for 900s at a speed of 40rpm, and its molecular weight and glass transition temperature were measured, as shown in Table 4. Its infrared spectrum is as figure 2 shown.
[0045] Table 4
[0046]
[0047] From Table 4 and figure 2 It can be seen that the degradation of polypropylene carbonate resin without adding trimellitic tricarboxamide compounds is very obvious, and the cyclic lactone generated is shown in the infrared spectrogram at 1800cm -1 There are obvious peaks. The polypropylene carbonate resin added with trimesic acid amide compounds can well inhibit the occurrence of degradation.
[0048] It can be clearly seen from the above examples that the polypropylene carbonate resin composition can achieve better heat resistance and degradation resistance when the amount of trimesic acid amide compound added is very low, which is bene...
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