Environmentally friendly combined polyether for high self-adhesive stainless steel freezer cabinets, preparation method and application
A combination of polyether and stainless steel technology, which is applied in the field of polyurethane foam, can solve the problems of stainless steel plate adhesion and heat preservation that cannot meet the requirements of stainless steel freezer cabinets, so as to improve compressive strength and dimensional stability, reduce thermal conductivity, and improve heat preservation performance effect
Active Publication Date: 2020-12-15
SHANDONG INOV NEW MATERIALS CO LTD
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- Abstract
- Description
- Claims
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Problems solved by technology
In this way, polyurethane foam produced by combining polyether products for ordinary freezers cannot meet the conditions of stainless steel freezer cabinets in terms of adhesion and heat preservation to stainless steel plates.
Method used
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[0029] The present invention will be further described below in conjunction with the examples, but the present invention is not limited.
[0030] All raw materials used in the examples are commercially available unless otherwise specified.
[0031] The combined polyether in the embodiment is prepared by the following method:
[0032] First, mix polyether polyol, additives, foam stabilizer, water and catalyst evenly to make dry white material; dry white material, cyclopentane and 1,1,1,4,4,4-hexafluoro The butene passes through a three-component static premixer, and after mixing, a uniform and stable liquid is formed to obtain the combined polyether of the present invention.
[0033] The application method of combined polyether is as follows:
[0034] Use the combined polyether (called A component material) and polymerized MDI (called B component material) to mix and react evenly with the combined polyether / crude MDI=1:1.0-1.3 in weight ratio, that is, to prepare Polyurethan...
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Abstract
The invention belongs to the technical field of polyurethane foam plastic, and particularly relates to high self-adhesive environment-friendly combined polyether for stainless steel freezer cabinets,a preparation method and application thereof. The combined polyether is prepared from the following raw materials in parts by weight: 20 to 50 parts of polyether polyol I; 20 to 30 parts of polyetherpolyol II, 30 to 50 parts of polyether polyol III, 10 to 15 parts of an additive, 0.2 to 0.6 part of a catalyst I, 1.0 to 2.0 parts of a catalyst II, 0.5 to 1.5 parts of a catalyst III, 0.5 to 1.0 part of a catalyst IV, 5 to 10 parts of a foam stabilizer, 2.1 to 3.1 parts of water, and 26 to 36 parts of a foaming agent. The preparation method is simple, and foam prepared by the reaction of the combined polyether and crude MDI has high compressive strength, good dimensional stability, low thermal conductivity, and high bonding strength with stainless steel plates. The foam performance meets therequirements of use, and has the characteristics of zero DOP, low GWP and good environment-friendly performance.
Description
technical field [0001] The invention belongs to the technical field of polyurethane foam plastics, and in particular relates to an environmentally friendly composite polyether for high self-adhesive stainless steel freezer cabinets, a preparation method and application. Background technique [0002] Polyurethane foam is a foam product made of polyether polyol, polyester polyol and isocyanate under the action of blowing agent, catalyst and other additives. It has good thermal insulation performance, mechanical performance and chemical resistance performance, especially It has excellent thermal insulation performance, and is widely used in refrigerators, freezers, water heaters, cold storage panels, sandwich panels, pipeline insulation, refrigerated containers and other thermal insulation fields. Stainless steel freezer cabinets are a very special type in the field of thermal insulation and cold chain. This type of product is used in large hotels, restaurants and other related...
Claims
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IPC IPC(8): C08G18/48C08J9/00C08J9/14C08L67/02C08G101/00
CPCC08G18/4816C08G18/4883C08J9/0014C08J9/141C08J9/146C08J2203/14C08J2203/142C08J2203/182C08J2375/08C08L67/02C08G2110/0025
Inventor 王玉李欣念以亭肖健美
Owner SHANDONG INOV NEW MATERIALS CO LTD