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Flame-retardant and heat-insulating external wall board with chlorinated polyvinyl chloride as base material

A chlorinated polyvinyl chloride, thermal insulation technology, used in thermal insulation, chemical instruments and methods, building components, etc. The effect of spreading, good low smoke performance, good flame retardant performance

Inactive Publication Date: 2016-11-23
SHANGHAI CHLOR ALKALI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic boards are mainly made of materials such as cement foam and magnesium oxide foam. Although they have good flame retardancy, they have poor thermal insulation performance; organic boards generally have better heat insulation effects, but their cost is high and they are flammable. material, there is a risk of fire
When flame retardant is added, although the organic sheet can obtain a certain flame retardant performance, the cost will increase, the physical properties will decrease, and the processing difficulty will increase.

Method used

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  • Flame-retardant and heat-insulating external wall board with chlorinated polyvinyl chloride as base material
  • Flame-retardant and heat-insulating external wall board with chlorinated polyvinyl chloride as base material
  • Flame-retardant and heat-insulating external wall board with chlorinated polyvinyl chloride as base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Formula and preparation method of CPVC hard surface layer 1:

[0043]

[0044]

[0045] The components are mixed and stirred, extruded with a twin-screw extruder and rolled into a sheet as the skin layer. (2) Foam layer 2 formula and preparation method that CPVC foaming makes:

[0046]

[0047] Mixing and stirring each component, extruding and foaming with a twin-screw extruder and rolling into a sheet to obtain a foam layer 2 prepared by foaming CPVC;

[0048] The product can be obtained by bonding the CPVC hard surface layer 1 and the foam layer 2 obtained by foaming the CPVC with a CPVC adhesive.

[0049] in:

[0050] The stabilizer is alkyl tin mercaptide Mark 292;

[0051] The processing aid is polymethacrylate ACR 801;

[0052] Foaming agent is azodicarbonamide;

[0053] The lubricant is a mixture of polyethylene wax A-C 8A and oxidized polyethylene wax A-C 316, and the weight ratio is 1:1;

[0054] The anti-impact agent is methyl methacrylate / b...

Embodiment 2

[0058] (1) The formulation of CPVC hard surface layer 1 and hard bottom surface 3:

[0059]

[0060] The preparation method is the same as in Example 1.

[0061] (2) Foam layer 2 formula and preparation method that CPVC foaming makes:

[0062]

[0063] in:

[0064] The stabilizer is alkyl tin mercaptide Mark 292;

[0065] The processing aid is polymethacrylate ACR 801;

[0066] Foaming agent is azodicarbonamide;

[0067]The lubricant is a mixture of polyethylene wax A-C 8A and ester wax G20, the weight ratio is 1:0.5;

[0068] The anti-impact agent is methyl methacrylate / butadiene / styrene copolymer B522;

[0069] The toner is titanium dioxide R105 and titanium yellow PY53.

[0070] The preparation method is the same as in Example 1.

[0071] Roll the freshly extruded top and bottom layers onto both sides of the foam layer until a sheet is obtained.

[0072] The test results are shown in Table 1.

[0073] Table 1

[0074] Example 1 Example 2 No...

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Abstract

The invention discloses a flame-retardant and heat-insulating external wall board with chlorinated polyvinyl chloride as a base material. The flame-retardant and heat-insulating external wall board with the chlorinated polyvinyl chloride as the base material comprises a CPVC (chlorinated polyvinyl chloride) hard surface layer and a CPVC foamed layer, wherein the hard surface layer and the CPVC foamed layer are compounded with each other. Through application of the CPVC to a heat-insulating building external wall board, excellent flame-retardant and low-smoke performance of a CPVC body and excellent heat insulation of the foamed CPVC are combined to obtain the heat-insulating building external wall board with excellent comprehensive performance, and the heat-insulating building external wall board is a board which does not employ a flame retardant but has flame-retardant and low-smoke functions. The limit oxygen index of a finished product is larger than 35, and the vertical flammability level is the flame-retardant performance V-0. Therefore, the fire spread in a fire is effectively prevented, and thus good flame-retardant performance is achieved. Compared with PVC, the CPVC also has good low-smoke performance, so that the survival rate of people in the fire can be greatly increased.

Description

technical field [0001] The invention relates to a flame-retardant, heat-insulating and heat-insulating exterior wall material, in particular to an exterior wall material made of chlorinated polyvinyl chloride. Background technique [0002] Chlorinated polyvinyl chloride (CPVC), which is a chlorinated product of polyvinyl chloride (PVC), theoretically has the highest chlorine content of CPVC up to 73.2%. At present, the chlorine content of CPVC produced by the aqueous phase method is usually controlled at 61%-68%. CPVC has the advantages of good heat resistance, chemical corrosion resistance, anti-aging performance, flame retardancy and high heat distortion temperature. It not only has many excellent properties of PVC, but also has good flame retardancy and low smoke characteristics. Most acids, alkalis, salts, and its Vicat heat resistance temperature is better than other thermoplastics. [0003] Building energy consumption accounts for 30% to 40% of human energy consumpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/80E04B1/94C08L27/24C08L33/10C08J9/04B32B27/30B32B27/06B32B27/18
Inventor 卢晟王健郑皓郭晓燕
Owner SHANGHAI CHLOR ALKALI CHEM