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A low-smoke halogen-free flame-retardant waterproof board, drainage board and preparation method thereof

A technology of waterproof board and drainage board, which is applied in the field of low-smoke halogen-free flame-retardant waterproof board, drainage board and its preparation, which can solve the problems of lack of smoke index and insufficient attention, so as to increase self-extinguishing performance and improve safety , the effect of improving the mechanical properties

Active Publication Date: 2021-03-09
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame-retardant waterproof panels in the prior art lack smoke indicators, indicating that insufficient attention has been paid to this

Method used

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  • A low-smoke halogen-free flame-retardant waterproof board, drainage board and preparation method thereof
  • A low-smoke halogen-free flame-retardant waterproof board, drainage board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 A low-smoke, halogen-free, flame-retardant waterproof board

[0039] A low-smoke, halogen-free, flame-retardant waterproof board is a flat board with smooth sides. Its raw material composition is shown in Table 1, and it is prepared by the following method:

[0040] Prepare the raw materials according to the ratio shown in Table 1, put them into a high-speed mixer and mix them evenly, transfer the mixed materials to a single-screw extruder, extrude, draw, and then calender and shape through a three-roll calender to obtain the waterproof board .

Embodiment 2～6

[0041] Embodiment 2~6 A low-smoke, halogen-free, flame-retardant waterproof board

[0042] For the low-smoke, halogen-free, flame-retardant waterproof boards described in Examples 2 to 6, see Table 1 for the composition of raw materials.

[0043] The low-smoke, halogen-free, flame-retardant waterproof boards of the above-mentioned embodiments were prepared by the same method and steps as in Example 1.

[0044] Table 1 Raw material ratio of each layer of the waterproof board of Examples 1-6 (1 part by weight=1kg)

[0045] Raw materials (parts by weight) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Ethylene-vinyl acetate copolymer 70 65 30 50 80 90 Linear Low Density Polyethylene 25 27 50 30 20 40 High-density polyethylene 20 10 1 5 25 50 A silane coupling agent 3 4 3 1 0.5 5 POE 25 30 15 20 35 45 Nano Magnesium Hydroxide 40 35 30 20 60 10 Phosphorus nitrogen flame retar...

Embodiment 7

[0046] Example 7 A low-smoke, halogen-free, flame-retardant drainage board

[0047] The low-smoke halogen-free flame-retardant drainage board described in this embodiment, such as figure 1As shown, the side surface of the drainage board body (1) has regularly arranged cylindrical solid bosses (2); the raw material composition of the drainage board is the same as that of Example 1, and the preparation method is also similar to that of Example 1, except that The surface of the last roller of the three-roll calender has regularly arranged cylindrical grooves.

[0048] Those skilled in the art should understand that the solid boss on the surface of the low-smoke, halogen-free, flame-retardant drainage board of the present invention, in addition to the cylindrical shape, can also be other geometric shapes suitable for industrial manufacturing, such as cuboid, cube, rhombus, rhombus Platform, triangular cone, triangular platform, circular platform and so on.

[0049] The raw mat...

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Abstract

The invention provides a low-smoke, halogen-free, flame-retardant waterproof board or drainage board. The raw materials include the following components in parts by weight: 30-90 parts of ethylene-vinyl acetate copolymer, 20-50 parts of linear low-density polyethylene, high-density polyethylene 1-50 parts of ethylene, 0.5-5 parts of silane coupling agent, 15-45 parts of elastomer POE, 10-60 parts of nano-magnesium hydroxide, 5-40 parts of phosphorus nitrogen flame retardant, 0.01-3 parts of ultraviolet absorber, Antioxidant 0.5-1.5 parts. The waterproof board of the present invention is a flat plate with equal thickness on both sides; the drainage board is a flat board with smooth one side and regularly arranged solid bosses on the other side. The invention also provides a preparation method of the waterproof board or drainage board. The waterproof board or drainage board of the present invention has good flame retardancy and mechanical properties.

Description

technical field [0001] The invention belongs to the field of waterproof materials, and in particular relates to a low-smoke, halogen-free, flame-retardant waterproof board, a drainage board and a preparation method thereof. Background technique [0002] At present, the number and length of railway and highway tunnels built in my country rank first in the world, and China has become the country with the most, most complex and fastest-growing tunnels in the world. At the same time, the tunnel construction of my country's urban rail transit is also entering a period of rapid development, involving a large number of tunnel construction. Since most of them belong to karst water-rich tunnels, waterproof treatment during construction plays a vital role in preventing tunnel water leakage diseases. Tunnel waterproofing is a comprehensive project, the core part of which is to set up an effective and durable waterproof layer. Polymer waterproof board and drainage board are the most c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08K13/02C08K3/22
CPCC08K2003/2224C08K2201/011C08L23/0815C08L23/0853C08L2201/02C08L2201/22C08L2205/025C08L2205/035C08L2207/062C08L23/06C08K13/02C08K3/22
Inventor 王涛祝和权杜存山毛昆朋南阳张喆
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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