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Trimming-free novel flexible foam rubber and plastic heat insulation product and preparation method thereof

A kind of product and heat insulation technology, which is applied in the direction of sheet/board, building components, etc., can solve the problems of poor vacuum water absorption and thermal conductivity, non-reusability, high production cost, etc., achieve low vacuum water absorption and thermal conductivity, reduce glue Material waste, good foaming quality

Inactive Publication Date: 2013-05-22
HEBEI HUAMEI CHEM & BUILDING MATERIALS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its products need to be cut and shaped after vulcanization and foaming, and the trimmings cut during the cutting and shaping process will form solid waste, which cannot be reused, and the production cost is high. Moreover, the shearing and shaping process of the product after vulcanization and foaming In the middle, the cutting edge is broken, forming a heat dissipation channel, and the vacuum water absorption and thermal conductivity of the product are poor

Method used

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  • Trimming-free novel flexible foam rubber and plastic heat insulation product and preparation method thereof
  • Trimming-free novel flexible foam rubber and plastic heat insulation product and preparation method thereof
  • Trimming-free novel flexible foam rubber and plastic heat insulation product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. Ingredients: Accurately weigh the required raw materials according to the formula requirements of the new flexible foam rubber and plastic insulation products without trimming.

[0051] 2. Internal mixing and open refining: the raw materials are separately internally mixed and opened, and rolled into raw material films for later use.

[0052] (1) Weigh nitrile rubber NBR: 8.4kg, talcum powder: 6.4kg, polyethylene glycol PEG: 0.5kg, antioxidant 4020: 0.2kg, chlorinated paraffin CLP: 20kg, zinc borate: 4kg, paraffin: 0.9 kg, Sb 2 o 3 : 2kg, Al(OH) 3 : 16kg, epoxy soybean oil ADDA: 1kg, anti-aging agent RD: 0.1kg, carbon black: 0.4kg, polyvinyl chloride PVC: 9kg, chlorinated polyvinyl chloride CPVC: 10kg put it in the internal mixing room of the internal mixer and output it material. After mixing and slicing through the open mill, it is the No. 1 material. The temperature in the internal mixing room of the internal mixer is 140°C and the material is discharged. The ...

Embodiment 2

[0068] The method of Example 1 is used to prepare a new type of flexible foam rubber and plastic thermal insulation product. The difference is that the rubber strip in step 2 is fed into the extruder, and rolled by the upper roll 1 and the lower roll 2 of the multi-roll calender to prepare the thickness of the film. 10mm. According to the width of the final product, adjust the position of the flat die cutters 3 and 4. After the extruded flat film is cut by the cutters 3 and 4, the remaining material 5 after cutting is recycled and reused, and then shaped after cutting. Material 6 width is 500mm. Residual material 5 is recycled through residual material recycling device 9, and the shaped film 6 is transported to the foaming furnace.

[0069] The obtained novel flexible foam rubber and plastic insulation product has a width of 1500 mm and a thickness of 30 mm. The error between the thickness of the side of the product and the flatness of the product surface is 1mm. The vertic...

Embodiment 3

[0072] The method of Example 1 is used to prepare a new type of flexible foam rubber and plastic thermal insulation product. The difference is that the rubber strip in step 2 is fed into the extruder, and rolled by the upper roll 1 and the lower roll 2 of the multi-roll calender to prepare the thickness of the film. 15mm. According to the width of the final product, adjust the position of the flat die cutters 3 and 4. After the extruded flat film is cut by the cutters 3 and 4, the remaining material 5 after cutting is recycled and reused, and then shaped after cutting. Material 6 width is 500mm. Residual material 5 is recycled through residual material recycling device 9, and the shaped film 6 is transported to the foaming furnace.

[0073] The obtained novel flexible foam rubber and plastic insulation product has a width of 1500 mm and a thickness of 45 mm. The error between the thickness of the side of the product and the flatness of the product surface is 1mm. The vertic...

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Abstract

The invention provides a trimming-free novel flexible foam rubber and plastic heat insulation product and a preparation method thereof. By adopting a multi-roll calender and additionally arranging an excess material recovery device in an extrusion and trimming process, the surface of a product is smooth, and the side surface of the product is not trimmed and has no broken holes. The interior of the novel flexible foam rubber and plastic heat insulation product is uniform in foaming, the surface of the product is smooth and has no die lines, the novel flexible foam rubber and plastic heat insulation product has high tear strength, the edges are comfortable, and the transverse thickness is uniform. The product is not trimmed and has no broken holes, a broken hole heat dissipation channel is plugged, so that vacuum water absorption and heat conductivity coefficient are lowered and the heat insulation effect is improved. Furthermore, the product is not trimmed, thus improving the raw material use efficiency, lowering the cost, generating no solid waste, and being beneficial to environment conservation, energy conservation and emission reduction.

Description

technical field [0001] The invention relates to the field of thermal insulation of flexible foamed products, in particular to a new energy-saving and emission-reducing plate thermal insulation product processed with a blend of rubber, PVC and other organic polymer materials as the base material. Background technique [0002] Traditional flexible foam sheet thermal insulation products mainly made of rubber and plastic have defects such as poor flatness, obvious appearance lines, uneven width and uneven edge lines after foaming, and need to be cut and finalized in the post-foaming process. The leftovers cut during the cutting and shaping process will form solid waste, pollute the environment, and cannot be reused. This wastes raw materials, increases production costs, and is not conducive to energy saving and emission reduction. At the same time, the existing rubber and plastic products are cut and shaped after foaming, which will inevitably lead to cutting holes and forming h...

Claims

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Application Information

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IPC IPC(8): B29C69/00B29C44/02B29C44/60B29C47/92B29C43/24F16S1/00B29C48/92
CPCB29C48/08
Inventor 高占起高铁中张振球高贺勇高贺伟高贺昌
Owner HEBEI HUAMEI CHEM & BUILDING MATERIALS GRP
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