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Structural flame-retardant polyurethane foam material suitable for heat preservation in buildings of refrigeration houses and ski fields

A polyurethane foam and ski resort technology, applied in the field of polyurethane materials, can solve problems such as difficulty in strength and increased cost of cold storage, and achieve the effect of high cross-linking density, uniform functionality, and low cross-linking density

Pending Publication Date: 2022-05-13
万华节能科技(烟台)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Polyurethane foam reaches ≥ 300KPa and the general density must reach 50kg / m 3 As mentioned above, high flame retardant foam needs to add a large amount of physical flame retardants, such as commonly obtained TCPP, TCEP, etc., it is more difficult to achieve the same strength, and the density generally needs to be increased by 20% or more, that is, 60kg / m 3 or above, which greatly increases the cost of cold storage

Method used

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  • Structural flame-retardant polyurethane foam material suitable for heat preservation in buildings of refrigeration houses and ski fields
  • Structural flame-retardant polyurethane foam material suitable for heat preservation in buildings of refrigeration houses and ski fields
  • Structural flame-retardant polyurethane foam material suitable for heat preservation in buildings of refrigeration houses and ski fields

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Embodiment 1

[0041] The structural flame-retardant polyurethane foam material suitable for thermal insulation in cold storage and ski resort buildings in this embodiment is formed by polymerizing isocyanate and polyol. The mass ratio of isocyanate to polyol is (100-150):100, and the isocyanate has a trifunctionality. Modified isocyanate, its chemical structural formula is as follows:

[0042]

[0043] Among them, the P content of the three-functionality modified isocyanate is 3.3%, the N content is 8.8%, and the NCO% content is 13.2%;

[0044] The synthesis method of the structural flame-retardant polyurethane foam material suitable for the thermal insulation of cold storage and ski resort buildings in this embodiment, the synthesis method is to polymerize the 3-functionality modified isocyanate and polyol, and its special feature is: 3-functionality modified Reactive isocyanate is obtained by polymerization of tris(di-1,2-propanediol) phosphite and TDI, and the reaction equation is as ...

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Abstract

The invention relates to a structural flame-retardant polyurethane foam material suitable for heat preservation in a cold storage skiing field building, and belongs to the technical field of polyurethane materials. The polyurethane thermal insulation foam material is produced by using combined polyether polyol and 3-functionality modified isocyanate according to a weight ratio of 100: (100-150). After being sprayed by using high-pressure inorganic spraying equipment, the flame retardant has the density of about 40kg / m < 3 >, the compressive strength of more than or equal to 300kPa, the odor grade (80 DEG C) of less than or equal to 3.5 and the fog test of less than or equal to 5mg (the phenomenon that a physical additive flame retardant diffuses to the environment does not exist).

Description

technical field [0001] The invention relates to a structural flame-retardant polyurethane foam material suitable for heat preservation in buildings of cold storage and ski resorts, and belongs to the technical field of polyurethane materials. Background technique [0002] In terms of flame retardancy, large space, high walls, and few safety exits are the architectural characteristics of cold storage. The large space leads to the rapid spread of smoke and toxic gases after a fire, which is very unfavorable for workers in the thick smoke to escape. At the same time, the large-span nature of the cold storage structure space determines that once a fire breaks out, the building may collapse. The large-span structure needs the support of corresponding building components, so the selection of steel structures and prestressed concrete slabs or light-weight components becomes the first choice. The fire-resistant collapse limit of the steel structure is only 8 minutes, which can easil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/77C08G18/48C08G18/50C08J9/08C08J9/14C08L75/08
CPCC08G18/776C08G18/482C08G18/4829C08G18/5021C08J9/08C08J9/144C08J2375/08C08J2203/02C08J2203/142C08J2203/184
Inventor 王磊温晴锟李坤张峰刘永亮沙丰余郁王耀西
Owner 万华节能科技(烟台)有限公司
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