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Phosphorus-containing PBS flame-retardant material and phosphorus-containing polyurethane and preparation method

A flame retardant material, polyurethane technology, applied in the field of biodegradable flame retardant material preparation, can solve the problems of poor compatibility of PBS flame retardant modification

Inactive Publication Date: 2017-08-18
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of poor compatibility in PBS flame retardant modification in the prior art, and provide a kind of phosphorus-containing PBS flame-retardant material, phosphorus-containing polyurethane and preparation method

Method used

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  • Phosphorus-containing PBS flame-retardant material and phosphorus-containing polyurethane and preparation method
  • Phosphorus-containing PBS flame-retardant material and phosphorus-containing polyurethane and preparation method
  • Phosphorus-containing PBS flame-retardant material and phosphorus-containing polyurethane and preparation method

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Experimental program
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Embodiment 1

[0039] Carry out the preparation of phosphorus-containing polyurethane with embodiment 1 as optimum embodiment:

[0040] Commercialized PBS resin (commercialized PBS resin in this application is purchased from Anqing Hexing Chemical Co., Ltd., injection molding grade, molecular weight Mn≈70000) is mixed with phosphorus-containing PBS flame retardant material (PPBS) by melt blending method Evenly, add the aliphatic isocyanate at the same time, slowly raise the temperature of the reaction system to 150-180°C, after the mixture is completely melted, react for 2 hours under the protection of nitrogen, and then the phosphorus-containing polyurethane can be prepared.

[0041] Table 3 shows that each component of different content obtains the different phosphorus-containing polyurethanes of series:

[0042] table 3

[0043]

[0044] Table 4 shows the test results of the phosphorus-containing polyurethanes obtained in different examples. It can be seen from the results that the pr...

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Abstract

The invention belongs to the field of biodegradable flame-retardant material preparation, and particularly relates to a phosphorus-containing PBS flame-retardant material and phosphorus-containing polyurethane and a preparation method. The phosphorus-containing PBS flame-retardant material is prepared by using hydroxyl-terminated polybutylene succinate HO-PBS-OH as a substrate and a bifunctional phospholipid compound as a chain expanding agent. The phosphorus-containing polyurethane (PPU) is formed by adding an isocyanate functional reaction compound into the obtained PPBS and commercial PBS resin to prepare a high-performance biodegradable material having both flame-retardant effect and toughening effect. Number-average molecular weight Mn of a prepared phosphorus-containing polyurethane flame-retardant material reaches higher than 8000, limit oxygen index can reach higher than 30, and elongation at break reaches higher than 150%.

Description

technical field [0001] The invention belongs to the field of preparation of biodegradable flame-retardant materials, and in particular relates to a phosphorus-containing PBS flame-retardant material, phosphorus-containing polyurethane and a preparation method. Background technique [0002] PBS is a fully biodegradable aliphatic polyester material with excellent performance. It has good mechanical properties, processing properties and thermal stability, and its tensile strength is between polypropylene and polyethylene; and PBS has a lower melting point and is widely used. It has been applied to products such as agricultural films, packaging bottles, and disposable medical appliances. With the further development of PBS, it will also be applied to auto parts, electronics industry, and even aviation fields. However, like most traditionally synthesized thermoplastics, PBS is also a flammable material. When it burns, there will be obvious droplet phenomenon, which may cause a la...

Claims

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Application Information

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IPC IPC(8): C08G63/91C08G63/78C08G63/16C08G18/46
CPCC08G63/916C08G18/4684C08G63/16C08G63/78C08G2230/00
Inventor 周晓明武通浩
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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