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Preparation method and application of PET-based multi-component synergetic polyol

A polyol and multi-component technology, which is applied in the field of the preparation of recycled PET-based multi-component synergistic polyols, can solve problems such as the inability of flame retardant ability to meet the requirements of use, and achieve the effects of increased product added value, mild reaction and strong practicability.

Inactive Publication Date: 2015-12-23
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The flame retardant ability of polyurethane insulation materials prepared by a single flame retardant element often cannot meet the requirements of use. For this reason, research and development of reactive polymer flame retardants with multiple synergistic flame retardant effects and industrial application value, for flame retardant polyurethane technology The development of the field is of great significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1 A kind of preparation method of PET-based polyhydric synergistic polyol

[0053] (1) Add 100g of recycled and crushed polyethylene terephthalate and 80g of ethylene glycol into the reaction kettle, turn on the agitator, add 0.1g of zinc acetate catalyst, heat to 210°C, and keep it warm for 1h;

[0054] (2) Cool the temperature to 120°C, add 150g of tetrabromophthalic anhydride, and react for 10 minutes;

[0055] (3) Add 200g of isocyanuric acid, 1.0g of quaternary ammonium salt catalyst tetraethylammonium bromide and 400g of propylene oxide, react for 3 hours, cool, and discharge to obtain a PET-based multi-component synergistic flame-retardant polyol; the PET-based Multi-element synergistic flame retardant polyol, yellow transparent viscous liquid, acid value 1.2mgKOH / g, viscosity 8752mPa.s.

Embodiment 2

[0056] Embodiment 2 A kind of preparation method of PET-based multi-component synergistic polyol

[0057] The preparation method is the same as in Example 1, except that diethylene glycol is used to replace ethylene glycol, and benzyltriethylammonium chloride is used to replace other tetraethylammonium bromide. The obtained PET-based multi-component synergistic flame-retardant polyol is a yellow transparent viscous liquid with an acid value of 1.3 mgKOH / g and a viscosity of 8540 mPa.s.

Embodiment 3

[0058] Embodiment 3 A kind of preparation method of PET-based polyhydric synergistic polyol

[0059] The preparation method is the same as in Example 1, except that diethylene glycol is used instead of ethylene glycol, benzyltriethylammonium chloride is used instead of tetraethylammonium bromide, and epichlorohydrin is used instead of propylene oxide. The obtained PET-based multi-component synergistic flame-retardant polyol is a yellow transparent viscous liquid with an acid value of 1.1 mgKOH / g and a viscosity of 10492 mPa.s.

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PUM

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Abstract

The invention discloses a preparation method and application of PET-based multi-component synergetic polyol and belongs to the technical field of high-molecular materials, reactive flame retardants, energy saving and protection, environmental-friendly new processes and building thermal insulation materials. The PET-based multi-component synergetic polyol is prepared through catalytic reaction by using recovered polyethylene terephthalate, mixed alcohol, tetrabromophthalic anhydride, isocyanuric acid and alkylene oxide. The raw materials for preparation are cheap and easy to obtain, the reaction conditions are mild, the process is simple, the operation is easy and the industrialized production is facilitated. The product is used for preparing flame-retardant polyurethane foam materials.

Description

technical field [0001] The present invention relates to a preparation method and application of a PET-based multi-component synergistic polyol, in particular to a preparation method and application of a recycled PET-based multi-component synergistic polyol for preparing flame-retardant polyurethane foam, which belongs to the macromolecule Materials, reactive flame retardants, energy conservation and protection, environmentally friendly new technology and building insulation materials technology. Background technique [0002] Polyethylene terephthalate, referred to as PET, has excellent properties such as non-toxic, wear-resistant, heat-resistant, electrical insulation, chemical corrosion resistance and easy recycling, and is now widely used in synthetic fibers, films, medical equipment, civil blowers, etc. Plastics, food packaging materials, mineral water bottles and other fields, with the continuous improvement of social demand, its production and sales are also increasing....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/91C08G63/183C08G18/42C08G101/00
Inventor 王志玲王刚郑鲁沂崔玉杨小风刘志连
Owner UNIV OF JINAN
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