Sandwich sheet and making method thereof

A sheet and sandwich technology, which is applied in the field of sandwich sheet and its preparation, can solve the problems that the strength and sound insulation effect cannot meet the requirements, the weight is heavy and difficult to disassemble and transfer, and the sound insulation performance does not meet the requirements, etc. Thermal insulation and long service life

Inactive Publication Date: 2014-04-16
LIAONING LIAOJIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, production workshops, air-conditioning machine rooms, telecommunication machine rooms, related facilities in entertainment places, advertising billboards, and interior materials for carriages have higher and higher requirements for the comprehensive performance of plate strength, heat insulation, flame retardancy, and sound insulation. On the one hand, traditional rubber cotton, Sound-insulating and flame-retardant materials such as sound-insulating felt are not strong enough, and their impact resistance is not good, and they are easy to break
On the other hand, the density of metal materials is relatively high, the weight is heavy, it is not easy to disassemble and transfer, and the sound insulation performance does not meet the requirements
Although there are plastic sheets with certain flame-retardant properties on the market, their flame-retardant effects are limited, and their strength and sound insulation effects often fail to meet the requirements.

Method used

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  • Sandwich sheet and making method thereof
  • Sandwich sheet and making method thereof
  • Sandwich sheet and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Weigh 40 parts by weight of polypropylene resin, 3 parts of compatibilizer PP grafted with maleic anhydride, 3 parts of antioxidant 3[2.4-di-tert-butylphenyl] phosphite, and 4 parts of antioxidant [β-(3,5-Di-tert-butyl-4-hydroxyphenyl) propionate] 0.6 parts of pentaerythritol ester, mix evenly, add it to the extruder to extrude the film, set the film temperature, the polypropylene resin The coating temperature is 240℃~280℃. The leached film is compounded with 56.1 parts of continuous untwisted roving; before compounding, the glass fiber needs to be stretched in parallel to make the fiber stretched uniformly, and then enter the oven for preheating, and the preheating temperature is 200℃; the compounding process is carried out in the compound roller; During the compounding process, 20℃ room temperature water is passed through the compounding roller to adjust the flow rate for cooling to ensure that the surface temperature of the compounded prepreg is 60℃~70℃, and then ...

Embodiment 2

[0038] (1) Weigh 50 parts of polypropylene resin by weight, 2 parts of compatibilizer PP grafted with maleic anhydride, antioxidant 3 [2.4-di-tert-butylphenyl] phosphite 0.26 part, antioxidant 4 [β-(3,5-Di-tert-butyl-4-hydroxyphenyl) propionate] 0.54 parts of pentaerythritol ester, mix evenly, add it to the extruder to extrude the film, set the film temperature, the polypropylene resin The coating temperature is 240℃~280℃. The leached film is compounded with 46.1 parts of continuous untwisted roving; before compounding, the glass fiber needs to be spread in parallel to make the fiber spread evenly and enter the oven for preheating at a preheating temperature of 200°C; the compounding process is carried out in the compound roll; During the compounding process, 20℃ room temperature water is passed through the compounding roller to adjust the flow rate for cooling to ensure that the surface temperature of the compounded prepreg is 60℃~70℃, and then enter the flattening roller for ...

Embodiment 3

[0044] (1) Weigh 36.1 parts of polypropylene resin in parts by weight, 4 parts of compatibilizer PP grafted with maleic anhydride, antioxidant three [2.4-di-tert-butylphenyl] phosphite 0.4 parts, and antioxidant four [ β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] pentaerythritol ester 0.8 parts mixed uniformly, added to the extruder to extrude the film, set the film temperature, and the polypropylene resin The film temperature is 240°C to 280°C. The leached film is compounded with 60 parts of continuous untwisted roving; before compounding, the glass fiber needs to be spread in parallel to make the fiber spread evenly and enter the oven for preheating at a preheating temperature of 200°C; the compounding process is carried out in the compound roll; During the compounding process, 20℃ room temperature water is passed through the compound roller to adjust the flow rate for cooling to ensure that the surface temperature of the compounded prepreg is 60℃~70℃, and then enter the ...

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Abstract

The invention relates to a sandwich sheet and a making method thereof. The sandwich sheet comprises an upper panel, a lower panel, bonding layers and a rock wool core, the rock wool core is connected with the upper panel and the lower panel through the bonding layers respectively, and the obtained sandwich sheet sequentially comprises the upper panel, one of the bonding layers, the rock wool core, the other one of the bonding layers and the lower panel from top to bottom. Compared with sandwich sheets in the invention, the sheet provided by the invention has the advantages of high strength, good flame retardation property, good sound insulation property and the like.

Description

Technical field [0001] The invention belongs to the field of composite materials and relates to a sandwich panel and a preparation method thereof. Background technique [0002] At present, production workshops, air-conditioning equipment rooms, telecommunications equipment rooms, entertainment venues related facilities, advertising billboards, cabin interior materials, etc. have higher and higher requirements for the comprehensive performance of sheet strength, heat insulation, flame retardancy, and sound insulation. On the one hand, traditional rubber cotton, Sound insulation and flame-retardant materials such as sound insulation felt have insufficient strength, poor impact resistance, and are easy to break. On the other hand, the density of metal materials is relatively large, and the quality is relatively heavy and difficult to disassemble and transfer, and the sound insulation performance does not meet the requirements. Although there are already plastic sheets with certain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C2/296B32B37/06B32B37/08B32B37/10C08L23/06C08L23/12C08L25/06C08L55/02C08L77/00C08L59/00C08L71/12C08L81/06C08L51/06C08K13/04C08K7/14C08K5/526C08K5/134
Inventor 张可心
Owner LIAONING LIAOJIE SCI & TECH
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