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A high-density fireproof fiber floor slab and its preparation method

A fire-resistant fiber and high-density technology, which is applied in the field of high-density fire-resistant fiber floor slabs and its preparation, can solve the problems of affecting the performance and service life of cement boards, high addition amount, and the inability of organic flame retardants to meet environmental protection and other problems

Active Publication Date: 2021-05-11
JIANGXI YUANYANG WEILI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic flame retardants have the characteristics of good thermal stability, non-volatility, long-lasting effect, and low price, but the addition amount is relatively high, while organic flame retardants cannot meet the requirements of environmental protection
Red phosphorus is a good flame retardant, which has the advantages of less addition, high flame retardant efficiency, low smoke, low toxicity, and wide application. However, red phosphorus is easy to oxidize and absorb moisture when directly added, which affects other properties and properties of cement boards. service life

Method used

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  • A high-density fireproof fiber floor slab and its preparation method

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Embodiment 1

[0036] The high-density fireproof fiber floor slab of the present embodiment comprises the following components: 35 parts of bentonite tailings, 35 parts of fly ash, 20 parts of Portland cement, 10 parts of wood fiber, 5 parts of isobutyltriethoxysilane and retardant Fuel 8 parts.

[0037] The method for preparing high-density fireproof fiber floor slabs in this embodiment is as follows:

[0038] (1) Wood fiber preparation: crush and grind waste kraft paper bags and / or waste cartons and / or waste wrapping paper, cool at -20°C for 20 minutes, grind and decompose to remove coarse fibers, and then feed the obtained pulp Ammonia gas is passed into the material, the pH of the slurry is adjusted to be 8, and then the wood fiber is obtained through beating;

[0039](2) Preparation of silane coupling agent solution: Stir and mix isobutyltriethoxysilane, ethanol and water with a mass ratio of 15:75:10 to prepare a silane coupling agent solution;

[0040] (3) Add red phosphorus and pol...

Embodiment 2

[0045] The high-density fireproof fiber floor slab of this embodiment includes the following components: 30 parts of bentonite tailings, 40 parts of fly ash, 15 parts of Portland cement, 15 parts of wood fiber, 3 parts of vinyltriethoxysilane and flame retardant 10 doses.

[0046] The method for preparing high-density fireproof fiber floor slabs in this embodiment is as follows:

[0047] (1) Preparation of wood fiber: crush and grind waste kraft paper bags and / or waste cartons and / or waste packaging paper, cool at -15°C for 40 minutes, grind and decompose to remove coarse fibers, and then feed the obtained pulp Ammonia gas is passed into the material, the pH of the slurry is adjusted to be 8.5, and then the wood fiber is obtained through beating;

[0048] (2) Preparation of silane coupling agent solution: Stir and mix vinyltriethoxysilane, ethanol and water with a mass ratio of 15:75:10 to obtain a silane coupling agent solution;

[0049] (3) Add red phosphorus and polyethyl...

Embodiment 3

[0054] The high-density fireproof fiber floor slab of this embodiment includes the following components: 40 parts of bentonite tailings, 30 parts of fly ash, 25 parts of Portland cement, 8 parts of wood fiber, 6 parts of vinyltriethoxysilane and flame retardant 5 doses.

[0055] The method for preparing high-density fireproof fiber floor slabs in this embodiment is as follows:

[0056] (1) Wood fiber preparation: crush and grind waste kraft paper bags and / or waste cartons and / or waste wrapping paper, cool at -18°C for 30 minutes, grind and decompose to remove coarse fibers, and then feed the obtained pulp Ammonia gas is passed into the material, the pH of the slurry is adjusted to be 9, and then the wood fiber is obtained through beating;

[0057] (2) Preparation of silane coupling agent solution: Stir and mix vinyltrimethoxysilane, ethanol and water with a mass ratio of 15:75:10 to prepare a silane coupling agent solution;

[0058] (3) Add red phosphorus and polyethylene gl...

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Abstract

The invention provides a high-density fireproof fiber floor slab and a preparation method thereof. The raw materials of the high-density fireproof fiber floor slab include: 30-40 parts of bentonite tailings, 30-40 parts of fly ash, and 15-25 parts of Portland cement , 8-15 parts of wood fiber, 3-6 parts of silane coupling agent and 5-10 parts of flame retardant; the flame retardant is a microcapsule flame retardant of red phosphorus coated with granular polytetrafluoroethylene. The high-density fireproof fiber floor slab provided by the present invention fully utilizes a variety of waste materials and mineral resources, and has a fireproof grade of A1. It has the advantages of insect resistance, environmental protection, high strength, long service life, not easy to crack, and easy construction. It can be used in high-end buildings. Steel structure exterior walls, steel structure floors, etc.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a fiber floor, in particular to a high-density fireproof fiber floor with bentonite fly ash as the main raw material and a preparation method thereof. Background technique [0002] Fiber-reinforced cement board (referred to as cement board) is a cement board for construction produced with fiber and cement as the main raw materials. It is widely used in various fields of the construction industry due to its superior performance. Fiber reinforced cement boards are classified according to density: low density 0.9-1.2g / cm3, medium density 1.2-1.5g / cm3, high density 1.5-2.0g / cm3. It is generally used for mid-range building partition walls and ceilings, and high-density is generally used for steel structure exterior walls and steel structure floors of high-end buildings. [0003] Fly ash is the main solid waste discharged from coal-fired power plants. With the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/28
CPCC04B28/04C04B2111/00017C04B2111/28C04B14/104C04B18/08C04B18/241C04B24/42C04B2103/63
Inventor 黄莉方穆兴黄诗华黄浦
Owner JIANGXI YUANYANG WEILI IND CO LTD