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Polyurethane polymer capable of rapidly decomposing, preparation method and applications thereof

A polyurethane polymer, rapid degradation technology, applied in the field of polyurethane polymer and its preparation, can solve the problems of high cost, secondary pollution, secondary pollution cost, etc., achieve good degradation performance, solve pollution problems, good mechanical properties and The effect of processability

Active Publication Date: 2014-03-26
SHANGHAI HUAFENG MATERIAL TECH RES INST LLP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a rapidly degradable polyurethane polymer to solve the technical problem that the polyurethane polymer in the prior art will cause secondary pollution when it is degraded by combustion or the cost is high when it is degraded by chemical alcoholysis
[0008] Another object of the present invention is to provide the preparation method of the above-mentioned rapidly degradable polyurethane polymer, so as to solve the technical problem that the polyurethane polymer in the prior art will cause secondary pollution when it is degraded by combustion or the cost is high when it is degraded by chemical alcoholysis

Method used

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  • Polyurethane polymer capable of rapidly decomposing, preparation method and applications thereof
  • Polyurethane polymer capable of rapidly decomposing, preparation method and applications thereof
  • Polyurethane polymer capable of rapidly decomposing, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Put 11.8g (0.1mol) of succinic acid and 5.3g (0.05mol) of sodium carbonate into 100ml of acetonitrile solution; add 36.7g (0.24mol) of methyl bromoacetate to the system; after the addition, react at 30°C for 2h, remove Solvent, filter, dry the filter residue, wash with water to remove the salt on the surface, and obtain it.

[0044] Add 6.55 g (0.025 mol) of the compound obtained above to 6.2 g (0.1 mol) ethylene glycol solution, add 0.02 g ethylene glycol antimony to the above solution, protect the mixture with nitrogen, and raise the temperature to 80° C. for 6 hours. Finally, the excess ethylene glycol was removed by vacuuming with an oil pump, and the measured hydroxyl value index was 174.1, and the degraded polyol DR-1 was obtained. The structural formula of DR-1 is:

[0045]

Embodiment 2

[0047] Dissolve 21.44g (0.21mol) of p-dioxanone in 100ml of acetonitrile solution, add 6.2g (0.10mol) of ethylene glycol to the solution, add 0.064g of zinc lactate, stir at room temperature for 30min, heat up to 60°C for 24h , and then remove the solvent and excess p-dioxanone in a vacuum at 3 mmHg, and the measured hydroxyl value index is 210.7, and the degraded segment DR-2 can be obtained. The structural formula of DR-2 is:

[0048]

Embodiment 3

[0050]Dissolve 21.44g (0.21) p-dioxanone in 100ml of acetonitrile solution, add 10.4g (0.1mol) of neopentyl glycol to the solution, add 0.055g of zinc lactate, stir at room temperature for 30min, heat up to 60°C for 24h , and then remove the solvent and excess dioxanone under vacuum at 3 mmHg, and the measured hydroxyl value index is 182.0, and DR-3 can be obtained. The structural formula of DR-3 is:

[0051]

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PUM

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Abstract

The invention relates to the technical field of modified polymer materials, and especially relates to a polyurethane polymer capable of rapidly decomposing, a preparation method and applications thereof. The polyurethane polymer comprises hard sections and soft sections, wherein the hard sections comprise analogous glycolic acid structures. Degradable analogous glycolic acid structures are introduced into the polyurethane hard sections of the polyurethane polymer, and the structures are easy to degrade in natural environment; furthermore the polymer has a good mechanical performance and processing property, and can be applied to fields of food package, ground film, synthesis leather, and shoe materials.

Description

technical field [0001] The invention relates to the technical field of modified polymer materials, in particular to a rapidly degradable polyurethane polymer and its preparation method and application. Background technique [0002] The full name of polyurethane is polyurethane, which is a general term for macromolecular compounds containing repeated carbamate groups on the main chain. It is mainly prepared by the reaction of polyisocyanate and active hydrogen compounds. By choosing different numbers of functional groups and different types of groups, and using different synthesis processes, polyurethane products with different properties and appearances can be prepared. From very soft to extremely hard foam plastics, elastomers with excellent wear resistance, synthetic fibers with high resilience, synthetic leather with excellent flexural resistance, etc., a new type of synthetic material with various varieties and different properties is gradually formed. series. With the...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/32C07C69/67C07C69/708C07C67/03
CPCC07C67/03C07C67/10C07C69/708C08G18/3221C08G18/4238C08G18/6607C08G18/664C08G2230/00C08G2310/00C07C69/67
Inventor 王大保朱彦唐劲松
Owner SHANGHAI HUAFENG MATERIAL TECH RES INST LLP
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