Non-combustible rubber powder polyphenyl-granule fire-retardant thermal-insulation paste with high water resistance

A technology of rubber powder polystyrene particles and high water resistance, which is applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., and can solve the problem of large fluctuations in dry density, compressive strength and combustion performance, and thermal insulation slurry The fire protection level cannot reach B1 level, and cannot meet the A level fire protection requirements, etc., to achieve the effect of reducing volume water absorption, improving workability and impermeability, and high fire resistance performance

Active Publication Date: 2015-07-22
BEIJING YUEZHU XINTIAN ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But at present, my country's rubber powder polystyrene particle insulation slurry has the following defects, which limit the large-area application of this product: (1) The water absorption is too large, and the thermal insulation mortar has a low thermal conductivity under absolute dry conditions , but if water seeps into the thermal insulation mortar layer, the thermal conductivity value will increase rapidly, resulting in a serious decline in thermal insulation effect
(2) The performance of the product is unstable, and technical indicators such as dry density, compressive strength, and combustion performance fluctuate greatly; (3) The combustion performance is B1, which cannot meet the A-level fire protection requirements of some building insulation
This brings about: (1) Raw materials or finished products are rarely homogenized, the particles are light and large, and the product quality is unstable; (2) Most of the polystyrene particles have no flame retardancy, and the prepared The fire protection grade of rubber powder polystyrene particle insulation slurry can't even reach B1 grade

Method used

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  • Non-combustible rubber powder polyphenyl-granule fire-retardant thermal-insulation paste with high water resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 65g of ordinary Portland cement, 9g of primary fly ash, 8g of superfine active metakaolin highly active mineral admixture, 5g of calcium hydroxide, 4g of alpha-type high-strength gypsum, polyethylene-vinyl acetate type redispersible 2g latex powder, 0.8g modified hydroxypropyl methylcellulose ether, 0.5g naphthalene superplasticizer NNO, 0.04g modified starch ether, 0.3g 12mm alkali-resistant glass fiber, 0.3 zinc stearate water repellent g, silane-based water-repellent SEAL800.5g, sodium lauryl sulfate air-entraining agent 0.01g, mixed and stirred for 6 minutes to obtain mixture A, set aside; continue to weigh the polystyrene with a particle size of 2mm and a bulk density of 14.5kg / m3 Styrene particles are used as B1 grade primary polystyrene particles 4.8g as material B, pour B into A, mix and stir for 6 minutes to obtain rubber powder polystyrene particle fireproof and thermal insulation slurry.

Embodiment 2

[0030] Weigh 68g of ordinary Portland cement, 5g of primary fly ash, 9g of superfine active metakaolin highly active mineral admixture, 5g of calcium hydroxide, 4g of alpha-type high-strength gypsum, polyethylene-vinyl acetate type redispersible 2g latex powder, 0.8g modified hydroxypropyl methylcellulose ether, 0.5g naphthalene superplasticizer NNO, 0.04g modified starch ether, 0.3g 12mm alkali-resistant glass fiber, 0.3 zinc stearate water repellent g, silane-based water repellent SEAL800.5g, sodium lauryl sulfate air-entraining agent 0.01g, mixed and stirred for 6 minutes to obtain mixture A, set aside; continue to weigh 4.8g of B1 primary graded polyphenylene particles as B Material, pour B into A, mix and stir for 6 minutes to get rubber powder polystyrene particle fireproof and heat-retaining slurry.

Embodiment 3

[0032] Weigh 70g of ordinary Portland cement, 2g of primary fly ash, 10g of superfine active metakaolin highly active mineral admixture, 5g of calcium hydroxide, 4g of alpha-type high-strength gypsum, polyethylene-vinyl acetate type redispersible 2g latex powder, 0.8g modified hydroxypropyl methylcellulose ether, 0.5g naphthalene superplasticizer NNO, 0.04g modified starch ether, 0.3g 12mm alkali-resistant glass fiber, 0.3 calcium stearate water repellent g, silane-based water repellent seal800.5g, sodium lauryl sulfate air-entraining agent 0.01g, mixed and stirred for 6 minutes to obtain mixture A, set aside; continue to weigh 4.8g of B1 primary graded polyphenylene particles as B Material, pour B into A, mix and stir for 6 minutes to get rubber powder polystyrene particle fireproof and heat-retaining slurry.

[0033] Table 1 compares the technical indicators of Examples 1 to 3 with the current standard technical indicator requirements of "Materials for Exterior Wall External...

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Abstract

The invention discloses a non-combustible rubber powder polyphenyl-granule fire-retardant thermal-insulation paste with high water resistance. 100 parts of the non-combustible rubber powder polyphenyl-granule fire-retardant thermal-insulation paste comprise, by weight, 65 to 70 parts of cement, 2 to 10 parts of fly ash, 8 to 10 parts of a high activity mineral admixture, 5 to 10 parts of an alkali activator, 3 to 5 parts of a sulfate activator, 2 to 4 parts of a redispersible latex powder, 0.5 to 1 part of modified cellulose ether, 0.3 to 0.7 part of a high efficiency water reducing agent, 0.02 to 0.05 part of an accessory ingredient with drop resistance, 0.3 to 0.5 part of fiber, 0.3 to 0.5 part of a stearate water repellent, 0.5 to 1 part of a silylation water repellent, 0.01 to 0.02 part of an air entraining agent, and 4.5 to 5 parts of a B1-grade native-level polyphenyl granule. The non-combustible rubber powder polyphenyl-granule fire-retardant thermal-insulation paste is low in heat conductivity coefficient, high in thermal insulation performance, high in compression strength, low in volume water absorption rate, high in softening coefficient, and high in fire-protection rating.

Description

technical field [0001] The invention relates to the technical field of external thermal insulation of external walls, in particular to a high waterproof non-combustible grade rubber powder polystyrene particle fireproof and thermal insulation slurry. Background technique [0002] At present, rubber powder polystyrene particle insulation slurry is the main insulation material in southern my country, while in northern China, this material is used in combination with other organic insulation materials. Rubber powder polystyrene particle insulation material is a kind of insulation material formed by blending powder and broken polystyrene particles. It is widely used in climate areas with low energy saving requirements and building insulation positions. [0003] But at present, my country's rubber powder polystyrene particle insulation slurry has the following defects, which limit the large-area application of this product: (1) The water absorption is too large, and the thermal i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B16/08C04B18/08
CPCY02W30/91
Inventor 王兵涛宋长友
Owner BEIJING YUEZHU XINTIAN ENERGY SAVING TECH
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