CN106003839A - Production method for fire-retardant and wear-resistant paper honeycomb cores - Google Patents
Production method for fire-retardant and wear-resistant paper honeycomb cores Download PDFInfo
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- CN106003839A CN106003839A CN201610374313.2A CN201610374313A CN106003839A CN 106003839 A CN106003839 A CN 106003839A CN 201610374313 A CN201610374313 A CN 201610374313A CN 106003839 A CN106003839 A CN 106003839A
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- Prior art keywords
- honeycomb
- resistant paper
- flame
- white
- preparation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D3/00—Making articles of cellular structure, e.g. insulating board
- B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
- B31D3/0223—Making honeycomb cores, e.g. by piling a plurality of web sections or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D3/00—Making articles of cellular structure, e.g. insulating board
- B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
- B31D3/0292—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section involving auxiliary operations, e.g. expanding, moistening, glue-applying, joining, controlling
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Abstract
The invention relates to the field of honeycomb paper, in particular to a production method for fire-retardant and wear-resistant paper honeycomb cores. The production method includes the steps of 1, carrying out the adhesive applying and stacking processes on fire-retardant and wear-resistant paper and core adhesives sequentially, then carrying out the hot-pressing process through a hot-pressing machine, preserving the temperature for 2-3 hours and forming stacked honeycomb blocks; 2, cutting the stacked honeycomb blocks in order, stretching the stacked honeycomb blocks for forming white honeycomb blocks and placing the white honeycomb blocks into a drying oven for high-temperature setting; 3, placing the set white honeycomb blocks into an impregnator for undergoing impregnation 1-4 times and placing the impregnated white honeycomb blocks into the drying oven for drying and solidifying; and 4, slicing the dried and solidified white honeycomb blocks and finally obtaining the fire-retardant and wear-resistant paper honeycomb cores. Compared with the prior art, the production method has the advantages that the honeycomb cost is greatly lowered, the material selection requirements of honeycombs for different density can be met, the mechanical property of the honeycomb cores impregnated with resin can reach more than 80% of the mechanical property of aramid fiber paper honeycombs, and the fire-retardant and wear-resistant paper honeycomb cores have high promotion value in the field of application of honeycomb composite materials.
Description
Technical field
The present invention relates to honeycomb paper preparation field, the preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core.
Background technology
Honeycomb is the most hexagonal a kind of structural core, lightweight, intensity is high, wider in field application such as Aero-Space, traffic, building decoration, households.Traditional honeycomb core can basic classification be: kraft paper honeycomb, aluminum honeycomb and aramid paper honeycomb.Kraft paper honeycomb core has kraft paper to be prepared from, and is not through impregnation with glue and paper flame treatment, and every mechanical performance index of honeycomb core is low, and anti-flammability is poor with water proofing property, but due to its higher cost performance, is mainly used in packaging field.Aluminium honeycomb core is to be prepared from by thin aluminium foil, main Types is 3003 and 5052, preparation technology is the most relatively easy, to compare aramid paper low for the prices of raw materials simultaneously, therefore honeycomb core unit price is cheap, owing to its nominal density is high, it is mainly used in building trade, such as curtain wall panel, indoor partition decorative panel, ceiling etc..
Aramid paper honeycomb have lightweight, high intensity, Gao Mo, fire-retardant, insulation, high temperature resistant, insulation, nontoxic, without expanding with heat and contract with cold, a series of premium properties such as anti-metal is tired, the high-low temperature difference of resistance to nature, low-dielectric loss, it has also become the preferred core of the industries such as aircraft, bullet train, subway, light rail.Aramid paper is mainly prepared with para-position fiber by meta fiber, and its cost of raw material is higher with preparation cost, limits the popularization of cellular application scope and the quantity of use, is difficult to large-scale application in motor vehicles for civilian use industry and house ornamentation interior trim industry.
Summary of the invention
The present invention, for overcoming the deficiencies in the prior art, designs a kind of a kind of flame-proof abrasion-resistant paper in addition to aramid paper honeycomb and manufactures the technical problem of honeycomb, it is provided that a kind of applicable abrasion-proof paper material manufactures the method for cellular composite material.
For achieving the above object, designing the preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core, its preparation method comprises the steps:
(1) step 1: after flame-proof abrasion-resistant paper and core bar glue are sequentially passed through gluing, overlapping operation, carry out hot pressing process with hot press, and be incubated 2-3 hour, and form honeycomb and fold block；
(2) step 2: honeycomb is folded block and cuts regular, and it is drawn into white honeycomb block, put into high-temperature shaping in baking oven；
(3) step 3: the white honeycomb block after sizing is put into impregnation 1-4 time in cement dipping machine, oven for drying solidification put into by impregnation after completing；
(4) step 4: the white honeycomb block sheet of baking and curing is cut, finally gives flame-proof abrasion-resistant paper honeycomb core.
The core bar glue of described step 1 is intermediate temperature setting core bar glue, and the solidification temperature of core bar glue is 135 DEG C, and core bar adhesiveness is 400-600cps.
Using pressure following temperature to rise the hot press increased in gradient in the hot pressing process of described step 1, the technological parameter of hot pressing is temperature 70-140 DEG C, pressure 6-9Mpa.
In described step 2, the diagonal≤3mm after block cuts folded by honeycomb.
In described step 2, white honeycomb block high-temperature shaping is white honeycomb block to be put in baking oven remittance, and at a temperature of 220 ± 5 DEG C, constant temperature keeps 3 hours.
In described step 3, the glue of impregnation is made up of thermosetting middle temperature phenolic resin and organic solvent, and the proportion of described glue is 0.8-1.2g/m, and in glue, thermosetting middle temperature phenolic resin is 1:(0.5-1.2 with the ratio of organic solvent).
Described organic solvent is dehydrated alcohol.
The honeycomb cell of the described flame-proof abrasion-resistant paper honeycomb core finally given is standard regular hexagon cell.
Described step 2 also includes carrying out the white honeycomb block stretched stretching distance detection operation, the white honeycomb block inspection that described stretching distance is detected as stretch stretch after L to or W to the distance of 20 cells.
In described step 3, the temperature range of solidification is middle temperature 125-140 DEG C, and constant temperature keeps 1-2 hour.
The present invention compared with the existing technology, significantly reduces honeycomb cost, can meet the honeycomb choice requirement of dissimilar density requirements simultaneously, and after impregnating resin, every mechanical property can reach more than the 80% of aramid paper honeycomb；Owing to flame-proof abrasion-resistant paper has the fire resistance of excellence and good wearability, may be degraded and recycle, be with a wide range of applications at civil area, and the application to cellular composite material has good promotional value.
Accompanying drawing explanation
Fig. 1 is the preparation technology flow chart of flame-proof abrasion-resistant paper honeycomb core of the present invention.
Fig. 2 is the honeycomb core structures schematic diagram of the present invention.
Detailed description of the invention
Below according to accompanying drawing, the present invention is described further.
Embodiment:
A kind of preparation method of flame-proof abrasion-resistant paper honeycomb core, this honeycomb core aperture is 3.2mm, and density is 48kg/m, and concrete preparation method is as follows:
Flame-proof abrasion-resistant paper is coated through the gluing roller speckling with core bar glue, then the paper after fixed length being cut carries out dislocation overlapping, finally utilizes hot press to suppress, makes white honeycomb and fold block.Wherein, the paper density of flame-proof abrasion-resistant paper is 50g/, and core bar glue is intermediate temperature setting core bar glue, and solidification temperature is 135 DEG C, and core bar adhesiveness is 550cps.During hot pressing, the pressure of hot press is adjusted to 3N/cm, and is incubated 3 hours, and obtains white honeycomb and fold block.
White honeycomb hot pressing completed is folded block and is stretched to a size of 1200 × 2400mm, and size as required carries out cutting regular, weighs, measurement size, and unirecord of doing manual work.
The white honeycomb cut is folded block and is drawn into white honeycomb block via stretching-machine, draw speed controls at 8mm/min, forms honeycomb cell as shown in Figure 2 after completing, and carries out L or the W range measurement to 20 cells, wherein W to 20 cell distances be 68mm, L be 110 to 20 cell distances.
The white honeycomb block stretched being put into baking oven and carries out high-temperature shaping, setting temperature is 220 DEG C.
The white honeycomb block shaped is carried out impregnation 2 times via cement dipping machine, wherein glue adjust resin adhesive liquid proportion is 0.98, range of solid content be 37%(in like manner, determine exact value), wherein thermosetting Chinese phenolic resin is 1:0.7 with the ratio of organic solvent.
White honeycomb block complete for impregnation is put into oven for drying solidification, and solidification uses middle temperature 130 DEG C, and keeps constant temperature 2 hours, is being cooled to room temperature, carries out every outward appearance detection of honeycomb block.
Monoblock honeycomb is carried out deburring, is bonded in sheet and cuts on the platform of machine, carry out sheet and cut.And finally give flame-proof abrasion-resistant paper honeycomb core.
Claims (10)
1. a preparation method for flame-proof abrasion-resistant paper honeycomb core, its preparation method comprises the steps:
(1) step 1: after flame-proof abrasion-resistant paper and core bar glue are sequentially passed through gluing, overlapping operation, carry out hot pressing process with hot press, and be incubated 2-3 hour, and form honeycomb and fold block；
(2) step 2: honeycomb is folded block and cuts regular, and it is drawn into white honeycomb block, put into high-temperature shaping in baking oven；
(3) step 3: the white honeycomb block after sizing is put into impregnation 1-4 time in cement dipping machine, oven for drying solidification put into by impregnation after completing；
(4) step 4: the white honeycomb block sheet of baking and curing is cut, finally gives flame-proof abrasion-resistant paper honeycomb core.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, is characterized in that: the core bar glue of described step 1 is intermediate temperature setting core bar glue, and the solidification temperature of core bar glue is 135 DEG C, and core bar adhesiveness is 400-600cps.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, it is characterized in that: the hot pressing process of described step 1 uses pressure following temperature rise the hot press increased in gradient, the technological parameter of hot pressing is temperature 70-140 DEG C, pressure 6-9Mpa.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, is characterized in that: in described step 2, the diagonal≤3mm after block cuts folded by honeycomb.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, is characterized in that: in described step 2, white honeycomb block high-temperature shaping is white honeycomb block to be put in baking oven remittance, and at a temperature of 220 ± 5 DEG C, constant temperature keeps 3 hours.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, it is characterized in that: in described step 3, the glue of impregnation is made up of thermosetting middle temperature phenolic resin and organic solvent, the proportion of described glue is 0.8-1.2g/m, and in glue, thermosetting middle temperature phenolic resin is 1:(0.5-1.2 with the ratio of organic solvent).
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 6, is characterized in that: described organic solvent is dehydrated alcohol.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, is characterized in that: described in the honeycomb cell of flame-proof abrasion-resistant paper honeycomb core that finally gives be standard regular hexagon cell.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, it is characterized in that: described step 2 also includes carrying out the white honeycomb block stretched stretching distance detection operation, the white honeycomb block inspection that described stretching distance is detected as stretch stretch after L to or W to the distance of 20 cells.
The preparation method of a kind of flame-proof abrasion-resistant paper honeycomb core the most as claimed in claim 1, is characterized in that: in described step 3, the temperature range of solidification is middle temperature 125-140 DEG C, and constant temperature keeps 1-2 hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610374313.2A CN106003839A (en) | 2016-05-31 | 2016-05-31 | Production method for fire-retardant and wear-resistant paper honeycomb cores |
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| CN201610374313.2A CN106003839A (en) | 2016-05-31 | 2016-05-31 | Production method for fire-retardant and wear-resistant paper honeycomb cores |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109291518A (en) * | 2018-10-25 | 2019-02-01 | 北京卫星制造厂有限公司 | A kind of the solidified forming tooling and method of honeycomb sandwich construction |
| CN109703169A (en) * | 2019-03-07 | 2019-05-03 | 苏州芳鸿雅新材料有限公司 | Used in the core material ox-hide paper honeycomb core processing unit (plant) and method of the vertical cover of track communicating door |
| CN110509616A (en) * | 2019-09-02 | 2019-11-29 | 嘉兴恒诺蜂窝制品有限公司 | A kind of preparation method of aluminium honeycomb core |
| CN111885480A (en) * | 2020-07-21 | 2020-11-03 | 深圳市广南电子有限公司 | Preparation method of voice coil framework for waterproof paper tube loudspeaker |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109291518A (en) * | 2018-10-25 | 2019-02-01 | 北京卫星制造厂有限公司 | A kind of the solidified forming tooling and method of honeycomb sandwich construction |
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| CN109703169A (en) * | 2019-03-07 | 2019-05-03 | 苏州芳鸿雅新材料有限公司 | Used in the core material ox-hide paper honeycomb core processing unit (plant) and method of the vertical cover of track communicating door |
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| CN110509616A (en) * | 2019-09-02 | 2019-11-29 | 嘉兴恒诺蜂窝制品有限公司 | A kind of preparation method of aluminium honeycomb core |
| CN111885480A (en) * | 2020-07-21 | 2020-11-03 | 深圳市广南电子有限公司 | Preparation method of voice coil framework for waterproof paper tube loudspeaker |
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Application publication date: 20161012 |