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Combined polyether for high-temperature-resistant damp-heat rice steaming cabinet as well as preparation method and application thereof

A combination of polyether and rice steaming cabinet technology, applied in the field of polyurethane application, can solve the problems of poor resistance to high and low temperature cycle impact force, atmospheric ozone layer destruction, poor gas phase heat conduction, etc., to achieve high temperature and humidity resistance performance improvement, easy emulsification, excellent Effect of Flow and Filling Properties

Inactive Publication Date: 2020-03-27
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the foaming agent is harmful to the ozone layer of the atmosphere, and the state gradually prohibits the use of the foaming agent in the refrigerator and freezer industry
Substitution of pentane is the current mainstream idea, but due to its poor thermal conductivity in the gas phase, it is necessary to add a large amount of amine ether to improve the thermal conductivity of the system, but it is also difficult to achieve below 0.020w / mk. At the same time, this type of foam material is compatible with 304 stainless steel Poor bonding force (currently the main way to improve the bonding problem is stainless steel plate glue treatment), and the poor resistance to high and low temperature cycle impact force of the material has become a relatively difficult problem in the industry, and it is easy to cause the box to fall off during use. Shell, door panel bulging problem

Method used

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  • Combined polyether for high-temperature-resistant damp-heat rice steaming cabinet as well as preparation method and application thereof
  • Combined polyether for high-temperature-resistant damp-heat rice steaming cabinet as well as preparation method and application thereof
  • Combined polyether for high-temperature-resistant damp-heat rice steaming cabinet as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The preparation method of the combined polyether for the high temperature and heat resistant rice steamer is as follows:

[0037] A component material preparation:

[0038] Prepare component A materials in a 1-ton reaction vessel, and weigh them separately: polyether polyol A (Shandong Innovol New Material Co., Ltd. INOVOL R5118G): 60 parts; Company INOVOL R6207): 30 parts; polyether polyol C (Hebei Yadong 401P): 10 parts; polyol D (Cardolite NX-9001LV): 2 parts; silicone oil L-6863: 2 parts; chemical foaming agent h 2 O: 2.1 parts; Pentamethyldiethylenetriamine (PC5): 0.1 parts; N,N Dimethylcyclohexylamine (Air Chemical PC8): 1 part; N,N Dimethylbenzylamine (BDMA) : 1.5 parts, JXP508: 0.4 parts, JXP509: 0.6 parts; n-pentane: 16.5 parts.

[0039] Add the weighed polyether polyol A, polyether polyol B, polyether polyol C, polyol D, foam stabilizer, chemical foaming agent, catalyst, physical foaming agent and delayed catalyst to the reaction In the kettle, stir at roo...

Embodiment 2

[0047] The preparation method of the combined polyether for the high temperature and heat resistant rice steamer is as follows:

[0048] A component material preparation:

[0049] Prepare component A materials in a 1-ton reaction vessel, and weigh them separately: polyether polyol A (Shandong Yinuowei New Material Co., Ltd. INOVOL R5118G): 20 parts); polyether polyol B (Shandong Yinuowei New Material Co., Ltd. Co., Ltd. INOVOL R6350): 50 parts; polyether polyol C (Hebei Yadong 401P): 30 parts; polyol D (Cardolite GX-9104): 7 parts; silicone oil L-6863: 2 parts; chemical foaming Agent H 2 O: 2.6 parts; Pentamethyldiethylenetriamine (PC5): 0.5 parts; N,N Dimethylcyclohexylamine (Air Chemical PC8): 0.5 parts; N,N Dimethylbenzylamine (BDMA) : 1.5 parts, JXP508: 1.4 parts, JXP509: 1.5 parts; Isopentane: 17 parts.

[0050] Add the weighed polyether polyol A, polyether polyol B, polyether polyol C, polyol D, foam stabilizer, chemical foaming agent, catalyst, physical foaming agent...

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Abstract

The invention belongs to the technical field of the application of polyurethane and particularly relates to combined polyether for a high-temperature-resistant damp-heat rice steaming cabinet as wellas a preparation method and application thereof. The combined polyether for the high-temperature-resistant damp-heat-resistant rice steaming cabinet is prepared from a component A and a component B. The component A is prepared from polyether polyol A, polyether polyol B, polyether polyol C, polyol D, a foam stabilizer, a chemical foaming agent, a catalyst, a delay catalyst and a physical foaming agent. And the component B is a mixture of polymethylene polyphenyl polyisocyanate and trifluoropropene. The combined polyether for the high-temperature-resistant damp and hot rice steaming cabinet hasthe advantages of excellent high-temperature-resistant and aging-resistant performance, good damp and hot size stability, low heat conductivity coefficient and good adhesion with a stainless steel plate, and the preparation method is simple, feasible and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of polyurethane applications, and in particular relates to a combined polyether for a high-temperature, damp-heat-resistant rice steamer, a preparation method and application thereof. Background technique [0002] Polyurethane foam is an excellent thermal insulation material with low thermal conductivity. This material is a thermosetting material, but its high temperature resistance is limited. Under high temperature conditions, the foam core material is prone to heartburn and aging. Especially under high humidity and heat conditions, its creep properties will also be greatly affected. [0003] Rice steamer, also known as rice steamer, rice steamer or rice steamer, refers to a large-scale kitchen baking equipment that uses electricity and gas to heat and cook rice. The body is cabinet-shaped and the material is stainless steel. Generally, it is made of 304 stainless steel. , by setting the pressure controll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/50C08G18/32C08J9/14C08G101/00
CPCC08G18/3215C08G18/482C08G18/4883C08G18/5027C08G18/6674C08G2101/00C08J9/141C08J2203/14
Inventor 殷晓峰李欣魏光曦张佳佳
Owner SHANDONG INOV NEW MATERIALS CO LTD
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