Thermoplastic polyester elastomer as well as preparation and application thereof
A thermoplastic polyester and elastomer technology, applied in the field of materials, can solve problems such as insomnia, environmental pollution, and neonatal deformities
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[0064] The present invention also provides a kind of preparation method of described thermoplastic polyester elastomer, described method comprises the steps:
[0065] 1) The first mixture, esterification catalyst, polycondensation catalyst and auxiliary agent are provided, wherein, the first mixture comprises the following components: component (a) furandicarboxylic acid and / or its esterified product, component (b) fat Family dibasic acid and / or its esterification product and component (c) glycol;
[0066] 2) In the reactor, mixing the first mixture and the esterification catalyst to obtain a second mixture;
[0067] 3) under stirring conditions, heating the second mixture to the first reaction temperature, and reacting for the first period of time to obtain the third mixture;
[0068] 4) mixing the third mixture, the polycondensation catalyst and the auxiliary agent to obtain a fourth mixture;
[0069] 5) heating the fourth mixture to a second reaction temperature and react...
Embodiment 1
[0089] Example 1 Thermoplastic polyester elastomer 1 (the molar content of 2,5-furandicarboxylic acid is 40%, R2 is C12 alkyl)
[0090]
[0091] Add 0.08mol of 2,5-furandicarboxylic acid, 0.12mol of dodecanedioic acid, 0.30mol of ethylene glycol, and 0.0004mol of anhydrous zinc acetate into a 1000mL reactor, vacuumize and replace with nitrogen three times, Start stirring, gradually raise the temperature to 180°C, and react for 4 hours. Add antimony trioxide, triphenyl phosphate and antioxidant to the system, raise the temperature to 230°C, and control the vacuum degree below 200Pa to react for 3 hours to obtain polyethylene 2,5-furandicarboxylate copolyester, which is a thermoplastic polymer. Ester Elastomer1.
[0092] result
[0093] NMR, DSC, TGA, mechanical properties and other tests were carried out on the thermoplastic polyester elastomer 1 respectively.
[0094] figure 1 for the thermoplastic polyester elastomer 1 1 H-NMR diagram.
[0095] from figure 1 It can ...
Embodiment 2
[0107] Example 2 Thermoplastic polyester elastomer 2 (the molar content of 2,5-furandicarboxylic acid is 60%, R2 is C12 alkyl)
[0108] Same as Example 1, the difference is that the amount of 2,5-furandicarboxylic acid is 0.12 mol, and the amount of dodecanedioic acid is 0.08 mol.
[0109] After testing, the thermoplastic polyester elastomer 2 has a spline tensile strength of 20 MPa, a tensile modulus of 178 MPa, an elongation at break of 892%, a 500% elastic recovery rate of 87%, and an intrinsic viscosity of 1.2 dL / g.
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