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Modified hard bubble polyurethane composite plate and manufacturing method thereof

A rigid foam polyurethane and composite board technology, which is applied in the field of building thermal insulation materials, can solve the problems of low closed cell rate, high thermal conductivity and foam water absorption rate, poor thermal insulation and waterproof and impermeability of the rigid foam polyurethane composite board, and achieves thermal insulation. The performance and waterproof and impermeability are improved, the waterproof and impermeability is good, and the effect of preventing fire

Inactive Publication Date: 2011-09-07
夏良强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the closed cell rate of the rigid polyurethane composite board used is relatively low, the thermal conductivity and foam water absorption rate are high, and the thermal insulation and waterproof and impermeability are relatively poor. Polymer coils are made of coils with tire base or reinforced mesh, or single-sided and double-sided synthetic boards are used as composite layers. The composite of these surfaces increases the impact strength of polyurethane composite boards. Under certain circumstances, it cannot effectively adapt to the deformation caused by excessive local temperature on one side of the polyurethane, resulting in the peeling off of the surface layer and the polyurethane, which makes the stability of the external thermal insulation system worse

Method used

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  • Modified hard bubble polyurethane composite plate and manufacturing method thereof
  • Modified hard bubble polyurethane composite plate and manufacturing method thereof
  • Modified hard bubble polyurethane composite plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The modified rigid foam polyurethane composite board made according to the method of this embodiment can refer to figure 1 , it shows the waterproof and fireproof coiled material without tire base or reinforcement net on both sides of the rigid foam polyurethane insulation layer. It can be seen from Figure 1 that it is composited on both sides of the insulation layer 2 without The waterproof and fireproof coiled material 1 with tire base or reinforcement net without reinforcement, and the rigid polyurethane foam insulation layer 2 are nano-silica airgel obtained by adding 3.5% polyurethane foam weight to polyurethane foam and drying under normal pressure.

[0037] The specific production process is as follows:

[0038] Production of polymer glue: Weigh raw materials according to the following weight ratio: 90% pure acrylic emulsion, 0.5% film-forming aid, 0.1% defoamer, 0.4% dispersant, 3% flame retardant, 6% water, add to the mixing tank and mix well.

[0039] Produc...

Embodiment 2

[0043] Another kind of modified rigid foam polyurethane composite board made according to the method of this embodiment can refer to figure 2 , it shows the waterproof and fireproof coiled material without tire base or reinforced net on one side of the insulation layer, and the waterproof and fireproof coiled material with tire base or reinforced net on the other side, as can be seen from Figure 2 , it is a waterproof and fireproof coiled material 1 without a tire base or a reinforced mesh on one side of the insulation layer 2, and a waterproof and fireproof coiled material 3 with a tire base or a reinforced mesh 4 on the other side. The reinforcement net 4 can be made of glass fiber felt, and the insulation layer 2 is nano-silica aerogel obtained by adding 5% polyurethane foam weight to the polyurethane foam and drying under normal pressure.

[0044] The specific production process is as follows:

[0045] Production of polymer glue: Weigh raw materials according to the foll...

Embodiment 3

[0052] The third modified rigid foam polyurethane composite board made according to the method of this embodiment can refer to image 3 , which shows a waterproof and fireproof membrane with tire base or reinforced mesh on both sides of the insulation layer. image 3 It can be seen from the figure that it is a waterproof and fireproof coiled material 3 compounded with tire base or reinforcement mesh 4 on both sides of the insulation layer 2, the tire base or reinforcement mesh 4 is glass fiber felt, and the insulation layer 2 is made of polyurethane foam. Added 1.5% polyurethane foam weight nano-silica aerogel obtained through normal pressure drying.

[0053] The specific production process is as follows:

[0054] The production of polymer glue: take the raw materials according to the following weight ratio: 85% VAE emulsion, 1% film-forming aid, 0.5% thickener, 0.3% defoamer, 0.9% dispersant, 4% retarder Combustion agent, 8.3% water, add in stirring tank and mix evenly.

...

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Abstract

The invention discloses a modified hard bubble polyurethane composite plate and a manufacturing method thereof. The manufacturing method comprises the following steps of: preparing a polymer coiled material in advance; and directly compounding the polymer coiled material to two surfaces of a hard bubble polyurethane insulation layer in the process of foaming polyisocyanate and polyether into the hard bubble polyurethane insulation layer. The manufacturing method is characterized in that an aerogel material is added to the hard bubble polyurethane insulation layer, the addition amount of the aerogel material is 0.05-6.5% of the weight of polyurethane foams, and the polymer coiled material is a waterproof and fireproof coiled material. The composite plate manufactured according to the method has the advantages of excellent heat insulation performance, high waterproof and impervious performances, more remarkable fireproof performance, convenience for use and high construction efficiency and can be used for large-area heat-insulation, waterproof and fireproof engineering of outer walls of a building.

Description

technical field [0001] The invention belongs to the technical field of building thermal insulation materials, and in particular relates to a modified rigid foam polyurethane composite board and a manufacturing method thereof. Background technique [0002] With the concern of the international community on the protection of the ozone layer and the enhancement of people's awareness of environmental protection, the traditional rigid foam polyurethane foaming agent CHC-11 has been banned in most countries in the world, and my country has also completely stopped using chlorofluorocarbons in the foam industry this year. Compounds as blowing agents. The blowing agents currently used to replace CHC-11 mainly include cyclopentane, n-pentane, HCHC-141b, HCHC-123, water and CO 2 Foaming agents such as CHC-11 have a higher gas phase thermal conductivity than CHC-11, and relatively low dimensional stability. Especially for board materials or castables, because the foaming process is rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/40B32B27/18
Inventor 夏良强
Owner 夏良强
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