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Graphene modified polyurethane insulation board and production method thereof

A polyurethane thermal insulation board and graphene modification technology, applied in thermal insulation, chemical instruments and methods, layered products, etc., can solve the problem of no obvious improvement in thermal insulation effect.

Active Publication Date: 2017-03-15
BEIJING SHENGXIN XINYUAN NEW BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After improving the flame retardant material, the flame retardant performance of the polyurethane insulation board is greatly improved, but the heat preservation effect is not significantly improved

Method used

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  • Graphene modified polyurethane insulation board and production method thereof
  • Graphene modified polyurethane insulation board and production method thereof
  • Graphene modified polyurethane insulation board and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Combining figure 1 and figure 2 The preparation process of graphene modified polyurethane insulation board is described as follows:

[0039] (1) Put 1000g of polyether polyol, 250g of 200-mesh graphite, 5g of graphene, and 5g of dimethyl methylphosphonate into a reaction kettle for pre-mixing for 15 minutes, disperse using a high-speed disperser, and set the speed at 3000r / s to obtain White stock premix.

[0040] (2) Mix the white material premix and 1500 g of polymethyl polyphenylisocyanate and place it in a high-pressure foaming machine, and set the pressure at 0.22 MPa to obtain a mixture.

[0041] (3) The laminator includes two upper and lower chain plates. Before the mixture is put into the laminator, the second cement fireproof cloth 3 is pre-laid on the lower chain plate of the laminator, and the upper chain plate of the laminator is transmitted through the rotating shaft. The first cement fireproof cloth1. Spread the mixture evenly on the second ...

Embodiment 1

[0057] In Example 1, the graphene-modified polyurethane insulation composite board includes the following components expressed in parts by weight: 1000 parts of polyether polyol, 1500 parts of polymethyl polyphenylisocyanate, 5 parts of dimethyl methylphosphonate , 250 parts of 200 mesh graphite powder, 5 parts of graphene.

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Abstract

The invention discloses a graphene modified polyurethane insulation board including first cement fireproof cloth, a graphene modified polyurethane insulation layer and second cement fireproof cloth which are arranged from top to bottom; the graphene modified polyurethane insulation layer comprises the following components in parts by weight: 900-1100 parts of a white material, 1350-1650 parts of a black material, 4.5-5.5 parts of a flame retardant, 225-275 parts of a graphite powder, and 4.5-5.5 parts of graphene. The invention provides the graphene modified polyurethane insulation board and a production method thereof, and aims to solve the problem that a conventional prepared polyurethane insulation board cannot be good in both insulation properties and flame retardant properties.

Description

technical field [0001] The invention relates to the technical field of thermal insulation, flame-retardant and energy-saving materials for external walls, more specifically, it relates to a graphene-modified polyurethane thermal insulation board and a production method thereof. Background technique [0002] Polyurethane insulation board is a lightweight insulation material with a closed cell rate as high as 93%. It has high compressive strength and good heat insulation effect. It is often used in building walls, cold storage rooms, and chemical tanks. Since polyurethane insulation boards are mostly used in densely populated areas, cargo collection areas, and chemical product gathering places, and my country also has clear requirements for the fire protection level of building insulation materials, polyurethane insulation boards must not only have thermal insulation performance but also have Outstanding fire performance. In order to improve the flame retardant properties of p...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08K3/04C08K7/24C08K5/521C08K5/5333E04B1/80E04B1/94B32B27/12B32B27/32B32B27/40B32B27/20B32B27/08B32B33/00B32B37/10B32B38/08C08G101/00
CPCB32B5/02B32B5/20B32B27/065B32B27/08B32B27/12B32B27/20B32B27/32B32B27/40B32B33/00B32B37/10B32B38/08B32B2038/0084B32B2260/021B32B2260/044B32B2262/0253B32B2266/0278B32B2307/304B32B2307/3065B32B2307/554B32B2307/558B32B2307/7145B32B2307/734C08G18/4829C08G18/7664C08G2101/00C08K3/04C08K5/521C08K5/5333C08K7/24C08K2201/014E04B1/80E04B1/942
Inventor 王永信王永胜孔祥荣张责宇
Owner BEIJING SHENGXIN XINYUAN NEW BUILDING MATERIAL CO LTD
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