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 shea

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

Example Embodiment

[0049] Example 1

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

[0051] 2. Banbury and open refining: the raw materials are respectively banned and open refining, and rolled into raw material film for later use.

[0052] (1) Weigh nitrile rubber NBR: 8.4kg, talc: 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, epoxidized soybean oil ADDA: 1kg, antioxidant RD: 0.1kg, carbon black: 0.4kg, polyvinyl chloride PVC: 9kg, chlorinated polyvinyl chloride CPVC: 10kg, put it into the secret mixing room after mixing material. The mixed material is sliced ​​into No. 1 material by the open mill. The temperature of the internal mixing chamber reaches 140℃ and the material is discharged. The thickness of the film is 10mm, the width is 6...

Example Embodiment

[0067] Example 2

[0068] The method of Example 1 was adopted to prepare a new type of flexible foam rubber and plastic insulation products. The difference is that the rubber strip of step 2 is fed into the extruder, and the thickness of the film is prepared by the rolling of the upper roller 1 and the lower roller 2 of the multi-roll calender It is 10mm. According to the width of the final product, adjust the position of the flat die cutters 3 and 4, the extruded flat film to be cut is cut by the cutters 3 and 4, and the remaining material 5 is recycled for reuse and shaped after cutting The width of material 6 is 500mm. The remaining material 5 is recycled by the remaining material recovery device 9, and the finalized film 6 is transported to the foaming furnace.

[0069] The width of the obtained new flexible foam rubber and plastic heat insulation product is 1500mm; the thickness is 30mm. The error between the side thickness of the product and the surface flatness of the pro...

Example Embodiment

[0071] Example 3

[0072] The method of Example 1 was adopted to prepare a new type of flexible foam rubber and plastic insulation products. The difference is that the rubber strip of step 2 is fed into the extruder, and the thickness of the film is prepared by the rolling of the upper roller 1 and the lower roller 2 of the multi-roll calender It is 15mm. According to the width of the final product, adjust the position of the flat die cutters 3 and 4, the extruded flat film to be cut is cut by the cutters 3 and 4, and the remaining material 5 is recycled for reuse and shaped after cutting The width of material 6 is 500mm. The remaining material 5 is recycled by the remaining material recovery device 9, and the finalized film 6 is transported to the foaming furnace.

[0073] The width of the obtained new-type flexible foam rubber-plastic thermal insulation product is 1500mm; the thickness is 45mm. The error between the side thickness of the product and the surface flatness of the...

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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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