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Polyurethane foam plastic insulation material for container and preparation method thereof

A foamed plastic and thermal insulation material technology, applied in the field of polyurethane, can solve the problems of poor low temperature dimensional stability, high foam material injection volume and high thermal conductivity, and can shorten the mold opening time, reduce the thermal conductivity and lower the reaction temperature. Effect

Active Publication Date: 2019-10-25
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Tend to the pressure of environmental protection. At this stage, the polyurethane insulation materials used in the production of containers in various countries generally use cyclopentane as a foaming agent. higher

Method used

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  • Polyurethane foam plastic insulation material for container and preparation method thereof
  • Polyurethane foam plastic insulation material for container and preparation method thereof
  • Polyurethane foam plastic insulation material for container and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The polyurethane foam insulation material for containers is composed of component A and component B, and the weight ratio of component A to component B is 1:1.05, in which:

[0034] The component A is, in parts by weight:

[0035]

[0036] During preparation, the weighed polyether polyol A, polyether polyol B, polyether polyol C and crosslinking agent are added to the reaction kettle and stirred, and then the weighed physical foaming agent is fully mixed according to the ratio. Add the weighed foam stabilizer, catalyst, chemical blowing agent, and fully mixed physical blowing agent to the reaction kettle, and stir for 1.0 hour at room temperature to obtain component A; combine component A and isocyanate (PM200) according to The weight ratio is 1:1.05 and the mixture is uniformly mixed and reacted to prepare a polyurethane foam insulation material for containers.

[0037] The specific indicators are as follows:

[0038]

[0039] Dimensional stability

[0040] -30℃, 24h: -0.22%

...

Embodiment 2

[0044] The polyurethane foam insulation material for containers is composed of component A and component B, and the weight ratio of component A to component B is 1:1.1, in which:

[0045] The component A is, in parts by weight:

[0046]

[0047] During preparation, the weighed polyether polyol A, polyether polyol B, polyether polyol C and crosslinking agent are added to the reactor and stirred, and then the weighed physical foaming agent is fully mixed according to the proportion. Add the weighed foam stabilizer, catalyst, chemical blowing agent, and fully mixed physical blowing agent to the reaction kettle, and stir for 1.5 hours at room temperature to obtain component A; combine component A and isocyanate (M20S) according to The weight ratio of 1:1.1 is mixed evenly and reacted to prepare a polyurethane foam insulation material for containers.

[0048] The specific indicators are as follows:

[0049]

[0050] Dimensional stability

[0051] -30°C, 24h: -0.26%

[0052] 100°C, 24h: 0.33...

Embodiment 3

[0055] The polyurethane foam insulation material for containers is composed of component A and component B, and the weight ratio of component A to component B is 1:1.15, in which:

[0056] The component A is, in parts by weight:

[0057]

[0058] During preparation, the weighed polyether polyol A, polyether polyol B, polyether polyol C and crosslinking agent are added to the reactor and stirred, and then the weighed physical foaming agent is fully mixed according to the proportion. Add the weighed foam stabilizer, catalyst, chemical blowing agent, and well-mixed physical blowing agent to the reaction kettle, and stir at room temperature for 1.0 hour to obtain component A; combine component A and isocyanate (M20S) according to The weight ratio is 1:1.5 and the mixture is evenly mixed and reacted to prepare a polyurethane foam insulation material for containers.

[0059] The specific indicators are as follows:

[0060]

[0061] Dimensional stability

[0062] -30℃, 24h: -0.29%

[0063] 10...

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Abstract

The invention belongs to the technical field of polyurethane, and particularly relates to a polyurethane foam plastic heat preservation material for a container and a preparation method of the polyurethane foam plastic heat preservation material. The heat preservation material is prepared from a component A and a component B, wherein the component A comprises the following components in parts by weight: 55 to 65 parts of polyether polyol A, 20 to 30 parts of polyether polyol B, 10 to 20 parts of polyether polyol C, 3 to 5 parts of a crosslinking agent, 2.0 to 4.0 parts of a foam stabilizer, 1.0 to 1.5 parts of a chemical foaming agent, 1.5 to 3.5 parts of a catalyst, and 15 to 25 parts of a physical foaming agent; the component B is poly-diphenylmethane diisocyanate. Compared with the prior art, the polyurethane foam plastic heat preservation material for the container has the advantages that polyurethane foam has a lower heat conduction coefficient and is excellent in flowability and density distribution, so that the material injection amount is reduced by 5 to 10 percent; being high in strength, high in size stability and high in demolding speed, the polyurethane foam is particularly applicable to the field of container heat preservation materials.

Description

Technical field [0001] The invention belongs to the technical field of polyurethane, and specifically relates to a polyurethane foam plastic insulation material for containers and a preparation method thereof. Background technique [0002] Rigid polyurethane foam is a polymer composite material with superior performance. Due to its characteristics of good low-temperature dimensional stability and low thermal conductivity, it is currently widely used in refrigerators, freezers and containers as a kind of thermal insulation material. [0003] At present, my country is the world's largest container manufacturing country and has created three world firsts in this production field. my country’s annual container production capacity has reached 5.8 million TEU (standard containers), ranking first in the world; the specifications and varieties of containers produced in the world are the first in the world. my country’s container production ranges from dry cargo containers to general cargo ...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/32C08J9/08C08J9/14C08G101/00
CPCC08G18/3281C08G18/4816C08G18/6688C08J9/08C08J9/141C08J9/144C08J9/149C08J2203/02C08J2203/14C08J2203/162C08J2203/204C08J2205/052C08J2205/10C08J2375/08C08G2110/0025C08G2110/005
Inventor 念以亭李明友张佳佳单明礼张丽萍
Owner SHANDONG INOV NEW MATERIALS CO LTD
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