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Production method for waterproof paper honeycomb compound sandwich board

A technology of paper honeycomb and sandwich panels, applied in the field of cabin panels, can solve problems such as increased thermal conductivity, affecting product performance, debonding, etc., and achieve the effects of improving comprehensive strength, improving performance, and good waterproof performance

Active Publication Date: 2013-02-06
SYST EQUIP CO LTD OF THE 28TH RES INST LI YANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the fields of ships, construction, aviation, military shelters, etc., the honeycomb core can be used as the sandwich layer material of the deck, but because it does not have waterproof performance, during long-term use, due to the intrusion of moisture, the paper honeycomb core will accumulate water. Causes increased thermal conductivity and debonding, which affects product performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a waterproof paper honeycomb composite sandwich panel, comprising the steps of:

[0030] (1) Configuration of dipping solution

[0031] Dissolving the adhesive of 15 parts by weight in the diluent of 85 parts by weight is configured as a dipping solution;

[0032] Described adhesive is made up of epoxy resin and phenolic resin by weight ratio 1:1,

[0033] Described diluent is mixed by ethyl acetate and ethanol by volume ratio 2:1;

[0034] (2) dipping

[0035] Place the paper honeycomb core in the dipping solution for dipping treatment, and the dipping time is 30 minutes;

[0036] (3) Stand still

[0037] Put the dipped paper honeycomb core on the support frame, let it dry naturally until the dipping solution stops dripping, and then put the paper honeycomb core on the film;

[0038] (4) drying

[0039] Move the paper honeycomb core and film to an oven, place it at 60°C for 30 minutes, remove the film; then raise the temperature in the ove...

Embodiment 2

[0043] A preparation method of a waterproof paper honeycomb composite sandwich panel, comprising the steps of:

[0044] (1) Configuration of dipping solution

[0045] Dissolving the adhesive of 40 parts by weight in the diluent of 60 parts by weight is configured as a dipping solution;

[0046] Described adhesive is made up of epoxy resin and phenolic resin by weight ratio 3:1,

[0047] Described diluent is mixed by butyl acetate and acetone by volume ratio 1:1;

[0048] (2) dipping

[0049] Place the paper honeycomb core in the dipping solution for dipping treatment, and the dipping time is 15 minutes;

[0050] (3) Stand still

[0051] Put the dipped paper honeycomb core on the support frame, let it dry naturally until the dipping solution stops dripping, and then put the paper honeycomb core on the film;

[0052] (4) drying

[0053] Move the paper honeycomb core and film to an oven, place it at 80°C for 10 minutes, remove the film; then raise the temperature in the ove...

Embodiment 3

[0057] A preparation method of a waterproof paper honeycomb composite sandwich panel, comprising the steps of:

[0058] (1) Configuration of dipping solution

[0059] Dissolving the adhesive of 30 parts by weight in the diluent of 70 parts by weight is configured as a dipping solution;

[0060] Described adhesive is made up of epoxy resin and phenolic resin by weight ratio 5:1,

[0061] Described diluent is mixed by butyl acetate and methanol by volume ratio 3:1;

[0062] (2) dipping

[0063] Place the paper honeycomb core in the dipping solution for dipping treatment, and the dipping time is 40 minutes;

[0064] (3) Stand still

[0065] Put the dipped paper honeycomb core on the support frame, let it dry naturally until the dipping solution stops dripping, and then put the paper honeycomb core on the film;

[0066] (4) drying

[0067] Move the paper honeycomb core and film to an oven, place it at 70°C for 20 minutes, remove the film; then raise the temperature in the ov...

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Abstract

The invention relates to a production method for a waterproof paper honeycomb compound sandwich board. The production method comprises the following steps: 1) preparing a gum dipping solution, namely dissolving an adhesive agent in a diluting agent to prepare the gum dipping solution; 2) dipping gum, namely placing a paper honeycomb core into the gum dipping solution for gum dipping treatment; 3) standing, namely naturally drying the gum-dipped paper honeycomb core until the gum dipping solution does not drop, and placing the paper honeycomb core onto a film; 4) drying, namely placing the paper honeycomb core and the film for 10-30 minutes at the temperature of 60-80 DEG C, moving away the film, and placing the paper honeycomb core for 1-2 hours at the temperature of 150-170 DEG C; and 5) pressing, namely hot pressing the paper honeycomb core, upper and lower skins and a bonding layer. According to the production method, the paper honeycomb core is dipped with the gum and correspondingly processed, so that the compound sandwich board produced by the paper honeycomb core is good in waterproof performance, water is not accumulated in the paper honeycomb core due to moisture invasion in the process of long-term use so as to avoid increment of thermal conductivity and degumming, and the performance of a product is improved.

Description

technical field [0001] The invention relates to a cabin board, in particular to a preparation method of a paper honeycomb composite sandwich board with waterproof performance. Background technique [0002] At present, the paper honeycomb composite sandwich panel is formed by pressing the paper honeycomb core and the metal or non-metal panel through the adhesive. Non-metal), adhesive, paper honeycomb core, adhesive and panel (metal or non-metal), under appropriate pressure, the above parts are bonded together, and after a certain period of heat preservation, the paper honeycomb composite sandwich panel is formed. [0003] The existing paper honeycomb core is made of plant fiber or kraft paper, which has moisture-proof performance and is mainly used for products with low strength requirements such as trays and buffer plates. In the fields of ships, construction, aviation, and military shelters, the honeycomb core can be used as the sandwich layer material of the deck, but bec...

Claims

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Application Information

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IPC IPC(8): B32B3/12B32B27/04B32B27/24B32B37/06
Inventor 石小富王文胜周玲朱正柱周超沈国华梁萍陈鸣瑶
Owner SYST EQUIP CO LTD OF THE 28TH RES INST LI YANG
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