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Composite flame-retardant paperboard and preparation method thereof

A composite flame retardant and cardboard technology, applied in chemical instruments and methods, paper/cardboard layered products, synthetic resin layered products, etc., can solve the problems of high cost, low material hardness and easy wear, etc. Cost reduction and high hardness

Active Publication Date: 2017-06-13
厦门弘诚复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At this stage, most of the warning partitions used in the switchgear on the market are UPGM203 plates with a whole body, which is relatively expensive, and the color is light red, which is not conspicuous, and the material hardness is low and easy to wear

Method used

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  • Composite flame-retardant paperboard and preparation method thereof
  • Composite flame-retardant paperboard and preparation method thereof
  • Composite flame-retardant paperboard and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1: Preparation of Composite Flame-Retardant Cardboard

[0042] Material preparation:

[0043] Put 1 layer of MP layer, 1 layer of CEM1 layer, 1 layer of PP layer, 2 layers of CEM1 layer, 1 layer of PP layer, 1 layer of CEM1 layer, 1 layer of MP layer in the structural order, code them, and send them into the laminator.

[0044] The initial temperature is 30-35°C, the pressing pressure is 60-90bar; the tonnage of the press is 1250T, and the product width is 1050x1250mm. At this time, the glue is in a semi-solid state;

[0045] Then it rises to 50-60°C, the pressing pressure is 140-170bar, and the heating rate is 1-2°C / min; at this time, the glue is in a liquid state;

[0046] Continue to raise the temperature to 80-90°C, the pressing pressure is 170-210bar, and the heating rate is 1-2°C / min; at this time, the glue is in a liquid state;

[0047] Then keep the pressure and heat up to 150°C; at this time, the glue is in a semi-cured state and turns into a solid st...

Embodiment 2

[0050] Embodiment 2: Preparation of composite flame-retardant paperboard

[0051] Material preparation:

[0052] 2 layers of MP layer, 1 layer of CEM1 layer, 3 layers of PP layer, 2 layers of CEM1 layer, 3 layers of PP layer, 1 layer of CEM1 layer, and 2 layers of MP layer are coded and sent to the laminator.

[0053] The initial temperature is 30-35°C, the pressing pressure is 60-90bar; the tonnage of the press is 1250T, and the product width is 1050x1250mm. At this time, the glue is in a semi-solid state;

[0054] Then it rises to 50-60°C, the pressing pressure is 140-170bar, and the heating rate is 1-2°C / min; at this time, the glue is in a liquid state;

[0055] Continue to raise the temperature to 80-90°C, the pressing pressure is 170-210bar, and the heating rate is 1-2°C / min; at this time, the glue is in a liquid state;

[0056] Then keep the pressure and heat up to 150°C; at this time, the glue is in a semi-cured state and turns into a solid state;

[0057] Then cool ...

Embodiment 3

[0059] Example 3: Preparation of Composite Flame Retardant Cardboard

[0060] Material preparation:

[0061] 1 layer of MP layer, 2 layers of CEM1 layer, 2 layers of PP layer, 4 layers of CEM1 layer, 2 layers of PP layer, 2 layers of CEM1 layer, and 1 layer of MP layer are coded and sent to the laminator.

[0062] The initial temperature is 30-35°C, the pressing pressure is 60-90bar; the tonnage of the press is 1250T, and the product width is 1050x1250mm. At this time, the glue is in a semi-solid state;

[0063] Then it rises to 50-60°C, the pressing pressure is 140-170bar, and the heating rate is 1-2°C / min; at this time, the glue is in a liquid state;

[0064] Continue to raise the temperature to 80-90°C, the pressing pressure is 170-210bar, and the heating rate is 1-2°C / min; at this time, the glue is in a liquid state;

[0065] Then keep the pressure and heat up to 150°C; at this time, the glue is in a semi-cured state and turns into a solid state;

[0066] Then cool down...

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Abstract

The invention discloses a composite flame-retardant paperboard and a preparation method thereof. The composite flame-retardant paperboard is characterized in that the structure sequentially comprises surface layers, secondary surface layers and a core part from exterior to center; the surface layers are 1-2 MP layers, the secondary surface layers are at least one CEM1 layer, the core part is at least one core layer, wherein each core layer is composed of 1-3 PP layers and 1-2 CEM1 layers. The composite flame-retardant paperboard has the very good tensile strength (133-140 MPa), vertical layer bending strength (257-267 MPa), relative electric mark index (larger than or equal to 400), arc resistance (124-128) and vertical layer electric strength (in normal oil, the pressure is quickly increased, and a 25-75-mm cylinder electrode is adopted), the combustibility is in a V-0 grade, and the property is good.

Description

technical field [0001] The invention relates to the field of flame-retardant boards, in particular to a composite flame-retardant paperboard and a preparation method thereof. Background technique [0002] At this stage, most of the warning partitions used in the switchgear on the market are UPGM203 plates with a whole body, which is relatively expensive, and the color is light red, which is not conspicuous, and the material has low hardness and is easy to wear. Contents of the invention [0003] The object of the present invention is to provide a composite flame-retardant paperboard with a bright red surface, mechanical strength and electrical properties meeting the requirements of electrical switch separators, and low cost. [0004] In order to achieve the above object, the present invention provides a kind of composite flame-retardant cardboard, it is characterized in that, its structure is surface layer, subsurface layer and sandwich part successively from outside to ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/30B32B17/04B32B17/06B32B27/04B32B29/00B32B29/06B32B7/12B32B37/06B32B37/10B32B37/12
CPCB32B5/02B32B7/12B32B29/005B32B29/02B32B37/06B32B37/10B32B37/1207B32B2037/1215B32B2250/40B32B2260/021B32B2260/028B32B2260/046B32B2307/20B32B2307/3065B32B2307/536B32B2307/54B32B2307/546B32B2307/554B32B2307/558B32B2307/584B32B2309/02B32B2309/12H02B1/30
Inventor 戴继文林以海
Owner 厦门弘诚复合材料有限公司
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