Polyster elastomer foam material with high melt strength and preparation method thereof

A technology of polyester elastomer and high melt strength, which is applied in the field of nanocomposite membranes, can solve the problems of no polyester elastomer melt strength, etc., and achieve the effects of easy control of process conditions, easy availability of raw materials, and low cost

Active Publication Date: 2013-11-06
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] So far, there has been no report on the use of nanoparticles to improve the melt strength of polyester elastomers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 150 parts by weight of dimethyl terephthalate, 200 parts by weight of ethylene glycol, 150 parts by weight of polyethylene glycol (molecular weight 1500g / mol) and catalyst magnesium acetate, tetrabutyl titanate (each 0.2 parts by weight) are added to the polymerization in the cauldron. (Note: this polymerization kettle is equipped with stirring device, nitrogen input device and fractionation device). The temperature was raised to 190 degrees, and the reaction was carried out for 4 hours until no methanol distilled out. Add 10 parts by weight of surface hydroxyl-rich SiO with a particle size of 80 nm to the system 2 , 0.5 parts by weight of antioxidant (168), 0.5 parts by weight of anti-aging agent (UV-234), 0.5 parts by weight of phosphite, the temperature is slowly raised to 230 ° C, the pressure is reduced to 0.01 MPa, and the reaction is performed for 1 hour. Subsequently, the temperature of the system was raised to 260° C., the pressure was lowered to 30 Pa, and t...

Embodiment 2

[0038]150 parts by weight of dimethyl phthalate, 40 parts by weight of butanediol, 10 parts by weight of polytetrahydrofuran ether glycol (molecular weight 2000g / mol) and catalyst magnesium acetate, tetrabutyl titanate (each 0.1 parts by weight) are added to in the polymerization kettle. (Note: this polymerization kettle is equipped with stirring device, nitrogen input device and fractionation device). The temperature was raised to 190 degrees, and the reaction was carried out for 4 hours until no methanol distilled out. Add 3 parts by weight of surface hydroxyl-rich TiO with a particle size of 160 nm to the system 2 With 0.5 parts by weight of antioxidant (1010), 0.5 parts by weight of antiaging agent UV-2344, and 0.5 parts by weight of phosphite, the temperature was slowly raised to 230° C., and the pressure was lowered to 0.01 MPa, and reacted for 1 hour. Subsequently, the temperature of the system was raised to 260° C., the pressure was lowered to 30 Pa, and the reaction...

Embodiment 3

[0040] 150 parts by weight of terephthalic acid, 40 parts by weight of propylene glycol, 10 parts by weight of polyethylene glycol (molecular weight: 4000 g / mol), catalyst calcium acetate and cobalt acetate (0.1 parts by weight each) were added to the polymerization kettle. (Note: this polymerization kettle is equipped with stirring device and nitrogen input device). The pressure was increased to 4MPa, the temperature was raised to 190°C, and the reaction was carried out for 2 hours. After depressurization, add 5 parts by weight of surface hydroxyl-rich SiO with a particle size of 80 nm to the system 2 With 0.5 parts by weight of antioxidant (944), 0.5 parts by weight of hexamethylphosphoric triamide, and 0.5 parts by weight of phosphite, the temperature was slowly raised to 230° C., and the pressure was lowered to 0.01 MPa, and reacted for 1 hour. Subsequently, the temperature of the system was raised to 260° C., the pressure was lowered to 30 Pa, and the reaction was contin...

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Abstract

The invention relates to a polyster elastomer foam material with high melt strength and a preparation method thereof. The polyster elastomer foam material with high melt strength mainly comprises aromatic dicarboxylic acid dimethyl ester (aromatic dicarboxylic acid), alpha, omega-aliphatic diol, polyether glycol and an inorganic precursor, wherein the inorganic matter in the composite material is in-situ synthesized by the inorganic precursor, and the hydroxyl groups on the surface of the inorganic matter react with hydroxyl groups at both ends of the polyster elastomer, so that part of polyster elastomer molecular chains are grafted onto the surface of the inorganic matter. Compared with the pure polyster elastomer, the composite material has higher melt strength, the foam elastomer can be manufactured after a foaming agent is added, the service temperature of foam plastic is 80 to 100 degrees higher than that of ordinary foam plastic, and the foam plastic has the characteristic of high strength and can be used under high temperature environment unacceptable for ordinary foamed plastic. Compared with the prior art, the polyster elastomer foam material with high melt strength has the characteristics of easily obtained raw materials, low cost, easily-controlled process conditions, good properties of products and stable quality.

Description

technical field [0001] The invention relates to a polyester elastomer foam material with high melt strength and a preparation method thereof, in particular to a bacteriostatic, biodegradable and conductive nanocomposite material suitable for biosensing, food preservation and packaging materials. material film. Background technique [0002] Foam plastic is a kind of polymer material formed by a large number of gas micropores dispersed in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and has a wide range of uses. Foam molding has become an important field in plastics processing. The structural foam developed in the 1960s is characterized by foaming the core layer and not foaming the skin layer. It is hard on the outside and tough on the inside. It has high specific strength (strength per unit mass), low material consumption, and is increasingly replacing wood. Used in construction and furniture industry....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/68C08G63/695C08G63/672C08G63/80
Inventor 姚晨光杨桂生
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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