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Biodegradable aromatic polyester elastomer and preparation method thereof

An aromatic polyester and polyester elastomer technology, applied in the field of biodegradable aromatic polyester elastomers and their preparation, can solve the problems of high brittleness and the difficulty of homopolymers to meet the requirements of use, and achieve high strength and toughness , good biocompatibility and degradability, the effect of broad market development prospects

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

As early as the 1990s, related products came out, but because of its molecular structure, its brittleness is too high, and its homopolymer is difficult to meet the requirements of use. Generally, it is modified by copolymerization or blending.

Method used

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  • Biodegradable aromatic polyester elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 100 g of dimethyl terephthalate, 100 g of ethylene glycol, 150 g of polyethylene glycol, and catalysts magnesium acetate and tetrabutyl titanate (0.03 g each) were added to the polymerization tank. (Note: this polymerization kettle is equipped with stirring device, nitrogen input device and fractionation device). The temperature was raised to 180°C, and after transesterification for 2 hours, 50 g of succinic acid was added. Then add nucleating agent Surlyn81503g, magnesium acetate 1.0g, antioxidant (168) 1g, antiaging agent (UV-234) 1g, phosphite 0.5g to the system. The temperature rises slowly to 230°C and the pressure drops to 0.01MPa , 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 continued for 3 hours. Introduce nitrogen, increase the pressure to 3MPa, discharge, draw strands, cool, pelletize, and dry. The obtained composite material was placed in a solid-state polyco...

Embodiment 2

[0033] 100g of dimethyl terephthalate, 120g of ethylene glycol, 150g of polyethylene glycol, catalyst magnesium acetate, and tetrabutyl titanate (0.03g each) were added to the polymerization kettle. (Note: this polymerization kettle is equipped with stirring device, nitrogen input device and fractionation device). Temperature rises to 180 degree, after transesterification reaction 2.5h, add succinic acid 76g, then add nucleating agent Surlyn8150 5g, magnesium acetate 1.3g, antioxidant (168) 0.5g, antiaging agent (UV- 234) 0.5g, phosphite 0.5g The temperature was slowly raised to 230°C, the pressure was lowered to 0.01MPa, and the reaction was carried out for 1 hour. Subsequently, the temperature of the system was raised to 250° C., the pressure was lowered to 30 Pa, and the reaction was continued for 3 hours. Introduce nitrogen, increase the pressure to 3MPa, discharge, draw strands, cool, pelletize, and dry. The obtained composite material was placed in a solid-state polyco...

Embodiment 3

[0036]100 g of dimethyl 2,6-naphthalate, 110 g of propylene glycol, 140 g of polypropylene glycol, and catalysts of cobalt acetate and tetrabutyl titanate (each 0.03 g) were added to the polymerization tank. (Note: this polymerization kettle is equipped with stirring device, nitrogen input device and fractionation device). The temperature was raised to 190 degrees, and after the transesterification reaction for 3 hours, 60 g of succinic acid was added, and then 7 g of nucleating agent Surlyn99507 g, 1 g of cobalt acetate, 0.5 g of antioxidant (1010), and 0.5 g of antiaging agent (UV-944) were added to the system. g, 0.5 g of phosphite, the temperature was slowly raised to 222° C., the pressure was lowered to 0.01 MPa, and the reaction was carried out 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 continued for 3 hours. Introduce nitrogen, increase the pressure to 3MPa, discharge, draw stra...

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Abstract

The invention relates to a biodegradable aromatic polyester elastomer and a preparation method thereof. The biodegradable aromatic polyester elastomer comprises the components based on parts by weight: 100 parts of aromatic dimethyl ester, 40-76 parts of C4-C8 carbon diacid, 10-120 parts of omega- aliphatic glycol, 10-150 parts of polyether glycol, 2.3-10.8 parts of nucleating agent, 0.2-1.5 parts of catalyst and 1-2.5 parts of processing agent. Compared with the prior art, the invention has the advantages of being low in cost, simple in method and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer material synthesis, and relates to a biodegradable aromatic polyester elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomer (TPE) combines the physical and mechanical properties of thermoplastics such as repeated processing and rubber's high elasticity, and at the same time has excellent recycling and regeneration properties. As a new polymer material market, the market is developing rapidly. Compared with traditional rubber, TPE does not need vulcanization and mixing, and can be directly produced by injection molding, extrusion, blow molding and other processing methods, and the scraps and scraps can be reused after being crushed. Generally speaking, thermoplastic elastomers have excellent physical and chemical properties and are easy to process. At the same time, this product also has the environmental advantages of being non-toxic, non-polluting and r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/672C08K3/34
Inventor 姚晨光杨桂生
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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