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Waterproof and heat holding hard polyether ester with asphalf mixed for building and its prepn process

A technology of polyurethane rigid foam and polyetherester, which is used in building thermal insulation materials, buildings, building components, etc., to achieve the effect of simplifying construction procedures

Inactive Publication Date: 2004-04-07
张树华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there is no report on the polyether ester type polyurethane rigid foam mixed with asphalt

Method used

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  • Waterproof and heat holding hard polyether ester with asphalf mixed for building and its prepn process
  • Waterproof and heat holding hard polyether ester with asphalf mixed for building and its prepn process

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Embodiment Construction

[0042] The embodiments of the present invention further specifically illustrate the feasibility and reliability of the polyether ester polyurethane rigid foam mixed with asphalt, but the present invention is not limited to the following examples, and the present invention is disclosed in detail below in conjunction with the examples.

[0043] Table 1 is a formula example of the polyetherester polyurethane rigid foam blended with asphalt. Among them, four examples are prepared by reacting 100 parts of composite material A with polyisocyanate B whose isocyanate index is 105.

[0044] Table 2 is the performance index of the four embodiments corresponding to Table 1.

[0045] Table 1

[0046]

[0047] Table 2

[0048]

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Abstract

The hard formed polyether ester type polyurethane material with asphalt mixed is prepared with component A and component B of polyisocyanate and through chemical foaming and spraying or pouring process. The component A is re-compounded with coal tar pitch liquid, sucrose polyether polyol, aromatic polyester polyol, catalyst, fire retardant, crosslinking agent and forming agent. The hard formed material has integrated waterproof, heat insulating, steam isolating, anticorrosive, sound isolating, noise reducing and other functions. The component A has no demixing, flocculation, precipitation and scaling produced during storage; the foamed material has good flowability in forming and has high compression strength, no cracking and no shrinkage after forming. The present invention is suitable for use in waterproof, heat insulating and other fields.

Description

technical field [0001] The invention relates to a new type of rigid foam material for building heat insulation and waterproofing, which belongs to the category of rigid polyurethane foam plastics. Background technique [0002] The roof wall waterproofing and thermal insulation materials used in the construction industry have a single function, that is, the thermal insulation is not waterproof, and the waterproof is not thermal insulation. For example, if cement vermiculite is used as a roof insulation layer, a waterproof membrane layer, a vapor barrier layer and a protective layer must be provided. The polystyrene foam board currently used in the construction industry cannot be directly sprayed on site, and needs to be prefabricated in the factory and pasted on site with an adhesive. Because the polystyrene board is not waterproof, it is necessary to set up a waterproof layer, a vapor barrier layer and a protective layer, which is inconvenient for construction. The three-o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/00C08L75/08C08L95/00
Inventor 张树华
Owner 张树华
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