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A kind of environment-friendly and degradable flame-retardant polyurethane rapid packaging material and preparation method thereof

A packaging material and flame-retardant technology, which is applied in the field of environmentally friendly degradable flame-retardant polyurethane rapid packaging materials and its preparation, can solve the problems of cumbersome operation, easy foam shrinkage, and affecting foam performance, so as to achieve easy availability of raw materials and reduce Environmental pollution, low cost effect

Active Publication Date: 2020-05-22
山西省建筑科学研究院集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The patent with the publication number CN 105175681 A discloses a method for preparing starch-based polyurethane rigid foam insulation materials. In the preparation of liquefied starch, a sulfonic acid catalyst is added and removed by distillation. The operation is cumbersome and easily affects the foam performance. Ethylene glycol 200 is used as a liquefaction solvent with low functionality, and the produced foam is prone to shrinkage

Method used

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  • A kind of environment-friendly and degradable flame-retardant polyurethane rapid packaging material and preparation method thereof
  • A kind of environment-friendly and degradable flame-retardant polyurethane rapid packaging material and preparation method thereof

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Effect test

Embodiment l

[0046] A method for preparing an environmentally friendly and degradable flame-retardant polyurethane fast packaging material, comprising the following steps:

[0047] (1) Add 50 parts of distilled water into the container, heat and stir, heat to 100°C, add 20 parts of corn starch, stir for 50 minutes to make the corn starch completely gelatinized, continue heating, and slowly add the complex polyether polyol 50 parts (a mixture of YNW-5112 and YNW-6001B with a mass ratio of 1:1), 10 parts of sucrose polyether polyol (YNW-4110), stirred and reacted for 15 minutes, controlled the viscosity of the system, and then lowered the temperature of the system to 65°C. Stirring reaction 30min, obtains biomass starch polyether polyol;

[0048] (2) Take 80 parts from the above-mentioned liquefied product and put them into No. 1 reactor, add 15 parts of polyester polyol, 2 parts of foam stabilizer (L6900), 20 parts of aluminum hydroxide, 10 parts of blowing agent (HCFC -141b), 0.3 parts of...

Embodiment 2

[0051] A method for preparing an environmentally friendly and degradable flame-retardant polyurethane fast packaging material, comprising the following steps:

[0052] (1) Add 50 parts of distilled water into the container, heat and stir, heat to 100°C, add 20 parts of corn starch, stir for 50 minutes to make the corn starch completely gelatinized, continue heating, and slowly add the complex polyether polyol 60 parts (a mixture of YNW-5112 and YNW-5110 with a mass ratio of 1:2), 10 parts of sucrose polyether polyol (YNW-8336), stirred and reacted for 15 minutes, controlled the viscosity of the system, and then lowered the temperature of the system to 65°C. Stirring reaction 30min, obtains biomass starch polyether polyol;

[0053] (2) Take 90 parts from the above-mentioned liquefied product and put them into No. 1 reactor, add 18 parts of polyester polyol, 3 parts of foam stabilizer (L618), 30 parts of aluminum hydroxide, 20 parts of blowing agent (HCFC -245fa), 0.4 parts of ...

Embodiment 3

[0056] A method for preparing an environmentally friendly and degradable flame-retardant polyurethane fast packaging material, comprising the following steps:

[0057] (1) Add 50 parts of distilled water into the container, heat and stir, heat to 100°C, add 20 parts of corn starch, stir for 50 minutes to make the corn starch completely gelatinized, continue heating, and slowly add the complex polyether polyol 80 parts (a mixture of YNW-5112, YNW-5110 and YNW-8110 with a mass ratio of 1:2:1), 20 parts of sucrose polyether polyol (YNW-380), stirring and reacting for 15 minutes, controlling the viscosity of the system, and then reducing The temperature of the system reaches 65°C, and the reaction is stirred for 30 minutes to obtain the biomass starch polyether polyol;

[0058] (2) Take 100 parts from the above-mentioned liquefied product and put them into No. 1 reactor, add 20 parts of polyester polyol, 4 parts of foam stabilizer (L6603), 30 parts of aluminum hydroxide, 20 parts ...

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Abstract

The invention belongs to the field of polyurethane materials and particularly relates to an environment-friendly degradable flame-retardance polyurethane rapid packaging material and a preparation method thereof. The polyurethane rapid packaging material comprises biomass starch polyether polyol, polyether polyol, a catalyst, a foam stabilizing agent, a foaming agent, aluminum hydroxide, a fire retardant, isocyanate and scrap polyurethane foam particles. The biomass starch polyether polyol is prepared from distilled water, corn starch, composite polyether polyol and saccharose polyether polyol. In the invention, rigid polyurethane foams are prepared from natural biomass raw materials, and scrap polyurethane foams are compounded into a product, so that the polyurethane rapid packaging material has the unique advantages of being reproducible and degradable, being low in cost and easily available in the raw materials and the like. Inexhaustible plant resources are fully utilized, and environmental pollution can be reduced, therefore, the polyurethane rapid packaging material belongs to an environment-friendly material.

Description

technical field [0001] The invention belongs to the field of polyurethane materials, in particular to an environment-friendly, degradable and flame-retardant polyurethane fast packaging material and a preparation method thereof. Background technique [0002] Due to its excellent processing and forming properties, polyurethane foam is widely used in various heat insulation, shockproof, sound insulation, lightweight structural parts, seat cushions, packaging, etc. However, the raw materials of isocyanate and polyol for producing polyurethane foam come from the petrochemical industry, which consumes a large amount of petroleum resources. In addition, the excellent performance of rigid polyurethane foam has been widely used in various fields, especially in construction, and the generation of a large amount of rigid polyurethane foam waste has also sounded the alarm for ecology, which has significance for the integration of resources and the improvement of utilization. . Polyur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/64C08G18/48C08G18/42C08G18/40C08K3/22C08K5/521C08L75/06C08L75/08C08L75/04C08J9/14
CPCC08G18/4018C08G18/42C08G18/4804C08G18/6484C08G2230/00C08J9/144C08J2203/142C08J2375/06C08J2375/08C08K3/22C08K5/521C08K2003/2227C08L75/06C08L75/08C08L2201/02C08L2201/06C08L2203/14C08L75/04
Inventor 杨志李绩杨瑞卿郑力菲陈学锋
Owner 山西省建筑科学研究院集团有限公司
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