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High performance polymer cement foam material and preparation thereof

A high-performance polymer and foam material technology, applied in the field of building thermal insulation materials, can solve the problems of poor thermal insulation effect, high water absorption rate, high brittleness, etc., and achieve the goal of improving thermal insulation effect, sealing performance, continuity and uniformity Effect

Inactive Publication Date: 2009-04-22
建筑材料工业技术监督研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It only introduces a small amount of film-forming polymer into the cement, and it is evenly dispersed in the cement, and the product does not burn (A grade). Insulation, economy, environmental protection, waste utilization, non-toxic, durable, and the same life as the building

Method used

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  • High performance polymer cement foam material and preparation thereof
  • High performance polymer cement foam material and preparation thereof
  • High performance polymer cement foam material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The following parts are parts by weight unless otherwise specified.

[0031] 700 parts of sulphoaluminate cement

[0032] Admixture 300 parts

[0033] Polymer 50 parts

[0034] Foaming agent 50 parts

[0035] 12.5 parts of compound admixture

[0036] Fiber 9 servings

[0037] 700 parts of water

[0038] The sulphoaluminate cement is a commercially available product with a 3d compressive strength ≥ 80 MPa, and its quality meets relevant standards.

[0039] The admixture is S95 grade finely ground slag or I grade fly ash, with specific surface area ≥ 400m 2 / kg, the quality meets the relevant standards.

[0040] The polymer is a commercially available HJ polymer product, with a solid content of 40-60%, a typical particle size of 0.1-0.3 μm, and a pH value of 7-9.

[0041] The foaming agent is a commercially available HJ foaming agent product, which belongs to the fourth generation composite foaming agent. In addition to containing synthetic surfactants, it also ad...

Embodiment 2

[0049] Sulphoaluminate cement 1000 parts

[0050] Admixture 0 parts

[0051] Polymer 50 parts

[0052] Foaming agent 50 parts

[0053] 12.5 parts of compound admixture

[0054] Fiber 9 servings

[0055] 700 parts of water

[0056] The sulphoaluminate cement is a commercially available product with a 3d compressive strength ≥ 80 MPa, and its quality meets relevant standards.

[0057] The admixture is S95 grade finely ground slag or I grade fly ash, with specific surface area ≥ 400m 2 / kg, the quality meets the relevant standards.

[0058] The polymer is a commercially available HJ polymer product, with a solid content of 40-60%, a typical particle size of 0.1-0.3 μm, and a pH value of 7-9.

[0059] The foaming agent is a commercially available HJ foaming agent product, which belongs to the fourth generation composite foaming agent. In addition to containing synthetic surfactants, it also adds foam-increasing components, foam-stabilizing components, and modifiers. And ot...

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Abstract

The invention relates to a high performance polymer cement foam material and a method for preparing the same. The high performance polymer cement foam material comprises the following components in weight portion: 500 to 1,000 portions of sulphate aluminium cement, 500 to 0 portion of admixture, 20 to 100 portions of polymer, 20 to 100 portions of foaming agent, 5 to 20 portions of composite additive, 0 to 20 portions of fiber, and 500 to 900 portions of water. The method for preparing the high performance polymer cement foam material comprises the following steps: firstly, preparing the foaming agent and the water into a foaming solution according to the ratio of 1 to 10, and preparing the foaming solution into tiny, even and stable foams through a compressed air foaming machine; secondly, simultaneously stirring the cement, the admixture, the polymer, the composite additive, fiber, and the remaining water to prepare a polymer neat cement paste, then inputting the foams and the polymer neat cement paste into a slurry agitator for agitation,, and evenly mixing the materials into a slurry; and thirdly, casting, molding and natural curing on the slurry to obtain the high performance polymer cement foam material. The high performance polymer cement foam material overcomes the disadvantages that an inorganic foam material has heavy brittleness, high water absorption rate, and poor heat insulation effect, and avoids the defects that an organic heat insulating material is easy to burn and has poor weathering resistance; besides, the high performance polymer cement foam material has the advantages of light weight, heat insulation, economy, environmental protection, waste recycling, innocuity, endurance, and same service life as a building, and can be applied to heat insulations of roofing, wall body, and floor (floor warming).

Description

technical field [0001] The invention relates to a building thermal insulation material—a high-performance polymer cement foam material and a preparation method thereof. Its main technical performance indicators are: dry apparent density ≤ 190kg / m 3 , thermal conductivity ≤0.049W / (m·K), compressive strength ≥220kPa, softening coefficient ≥0.60, non-combustible (A grade). Background technique [0002] At present, commonly used thermal insulation materials at home and abroad include polystyrene foam (EPS, XPS), polyurethane rigid foam (PU), etc., which have the advantages of light weight and good thermal insulation, but the biggest disadvantages are easy aging and poor fire safety. Fire accidents occur frequently in construction projects in various places. During fires, the smoke is large, the toxicity is high, and the hazards are serious. Due to its defects in fire protection, insurance companies in some European countries have refused to insure buildings with polystyrene bo...

Claims

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Application Information

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IPC IPC(8): C04B28/06C04B38/00
CPCC04B28/065C04B2111/28Y02W30/91C04B18/141C04B24/24C04B38/10C04B18/08C04B24/2682
Inventor 李应权徐洛屹扈士凯罗宁段策
Owner 建筑材料工业技术监督研究中心
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