A kind of PBS thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer and aliphatic technology, which is applied in the field of polymer material processing and preparation, can solve the problems of bio-based thermoplastic elastomers such as non-biodegradability, environmental pollution, and non-biocompatibility, etc., to reduce the mixing energy consumption, excellent mechanical properties, and good cell compatibility

Active Publication Date: 2021-02-12
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is worth noting that most of the vulcanizing agents used in the preparation of the above-mentioned thermoplastic elastomers are non-environmentally friendly materials, which do not have biocompatibility and cause a certain degree of pollution to the environment. On the other hand, most of the above-mentioned rubber dispersed phases are non-biodegradable materials, resulting in bio-based thermoplastic elastomers that are not fully biodegradable

Method used

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  • A kind of PBS thermoplastic elastomer and preparation method thereof
  • A kind of PBS thermoplastic elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Add 5 parts (parts by mass, the same below) of acetyl tri-n-butyl citrate to 65 parts of dried organic salt microspheres for oil extension to obtain oil-extended organic salt microspheres;

[0049] Mix 70 parts of the above-mentioned oil-extended organic salt microspheres, 35 parts of PBS, and 1.3 parts of carbodiimide anti-hydrolysis agent UN-150 in a high-speed mixer, and then put the premix in the Hacker Torque Rheology The fully biodegradable PBS thermoplastic elastomer was prepared by high temperature melt blending in the instrument.

[0050] Haake torque rheometer processing conditions: working temperature is 150°C, rotating speed is 70rpm, mixing for 10min until the mixing torque is balanced.

[0051] Wherein, the preparation method of the organic salt microspheres is as follows:

[0052] 1. Add 18.27g (0.240mol) 1,3-propanediol, 21.18g (0.235mol) 1,4-butanediol, 3.00g ( 0.015mol) PEG-200, 4.00g (0.010mol) PPG-400 and 28.60g (0.2422mol) succinic acid, 49.01g (0...

Embodiment 2

[0058] Add 10 parts (parts by mass, the same below) of acetyl tri-n-butyl citrate to 65 parts of dried organic salt microspheres for oil extension to obtain oil-extended organic salt microspheres;

[0059] Mix 75 parts of the above-mentioned oil-extended organic salt microspheres, 35 parts of PBS, and 1.3 parts of carbodiimide anti-hydrolysis agent UN-150 in a high-speed mixer, and then put the premix in the Hacker Torque Rheology The fully biodegradable PBS thermoplastic elastomer was prepared by high temperature melt blending in the instrument.

[0060] Haake torque rheometer processing conditions: working temperature is 150°C, rotating speed is 70rpm, mixing for 10min until the mixing torque is balanced.

Embodiment 3

[0062] Add 15 parts (parts by mass, the same below) of acetyl tri-n-butyl citrate to 65 parts of dried organic salt microspheres for oil extension to obtain oil-extended organic salt microspheres;

[0063] Mix 80 parts of the above-mentioned oil-extended organic salt microspheres, 35 parts of PBS, and 1.3 parts of carbodiimide anti-hydrolysis agent UN-150 in a high-speed mixer, and then put the premix in the Hacker Torque Rheology The fully biodegradable PBS thermoplastic elastomer was prepared by high temperature melt blending in the instrument.

[0064] Haake torque rheometer processing conditions: working temperature is 150°C, rotating speed is 70rpm, mixing for 10min until the mixing torque is balanced.

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Abstract

The invention belongs to the technical field of high molecular material processing and preparation and in particular relates to a full biodegradable PBS thermoplastic elastomer and a preparation method thereof. The full biodegradable PBS thermoplastic elastomer is prepared from the following components in parts by weight: a, organic salt microspheres, b, PBS, c, a softening agent and d, a hydrolysis resistant, wherein the weight ratio of the components a and b is 50: 50 to 75: 25; the component c accounts for 5-20 parts by weight based on total weight of the components a and b, totaling 100 parts; and the component d accounts for 2 parts by weight based on weight of the components a, totaling 100 parts. The PBS thermoplastic elastomer prepared by the preparation method has excellent mechanical properties, biodegradability and cell compatibility and the maximum torque in the processing course can be reduced obviously, so that the mixing energy consumption is reduced greatly and the costis saved.

Description

technical field [0001] The invention belongs to the technical field of polymer material processing and preparation, and in particular relates to a fully biodegradable PBS thermoplastic elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomer is a polymer material that has the elasticity of rubber at room temperature and can be melted and reshaped at high temperature. It has a series of advantages such as superior mechanical properties, good processing performance, and recyclable processing and use; biodegradable materials The application of it can significantly improve the environmental pollution problem and reduce the resource loss and ecological damage caused by petroleum-based materials. The design and development of biodegradable polyester thermoplastic elastomers will benefit the "green" and sustainable development of the thermoplastic elastomer industry in the long run. [0003] Polybutylene succinate (PBS) is obtained by polyc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L67/06C08K5/11C08K5/29C08F283/01C08F222/14C08F2/46C08G63/676
Inventor 王庆国唐卓华王童瑶黎永轩王兆山
Owner QINGDAO UNIV OF SCI & TECH
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