CN104029261A - Novel sheet material and application thereof - Google Patents
Novel sheet material and application thereof Download PDFInfo
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- CN104029261A CN104029261A CN201410173327.9A CN201410173327A CN104029261A CN 104029261 A CN104029261 A CN 104029261A CN 201410173327 A CN201410173327 A CN 201410173327A CN 104029261 A CN104029261 A CN 104029261A
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Abstract
The invention relates to a novel sheet material and application thereof. The objective of the invention is to provide manufacturing and application of the novel sheet material with the advantages of high surface density, great lightness, uneasy deformability, simple process, good controllability and a shallow color. Manufacturing of the novel sheet material comprises the following steps: (1) drying, wherein water content is controlled to be 20 to 30%; (2) rolling, wherein a compression ratio is controlled to be 10 to 30%; (3) surface impregnation: a step of soaking one or two surfaces of the sheet material in a light-color water-soluble low-molecular-weight phenolic resin glue with a concentration of 10 to 25%; (4) steam softening, wherein softening temperature is controlled to be 120 to 140 DEG C, and softening time is 20 to 60 min; and (5) surface compaction, wherein a compression ratio is controlled to be 15 to 50%, a hot pressing temperature is 160 to 180 DEG C and unit pressure is 1.5 to 4.5 MPa. The novel sheet material can be applied both to a kitchen cabinet with adjustable temperature and in fields like furniture manufacturing and interior decoration.
Description
Technical field
The present invention relates to a kind of sheet material new material and application thereof.Be applicable to be applied to the kitchen cabinet of temp. controllable, also applicable to the field such as Furniture manufacture, indoor decorating.
Background technology
At present, China is in a large amount of exploitations and is used stage of artificial forest fast growing wood, but artificial forest wood material is loose, density is lower, mechanical strength is poor, can not be directly as the material of furniture, indoor decorating etc.For the shortcoming of the above-mentioned artificial forest wood of customer service, prior art adopts the methods such as dipping, densification to strengthen it conventionally, the common compressed wood that wherein makes by densification method, surface pressure densification timber (surface compressed material), compression shaping wood etc. make hardness, density, the intensity of artificial forest wood obtain larger raising, and the high-quality that has realized low-grade wood is used.Particularly surface compressed material it by densification processing is carried out in the top layer of artificial forest wood, the hardness of needs, intensity can be concentrated on to the top layer of timber, and not densification part still keeps lower density, both made timber have the very high ratio of strength to weight, and made again the utilization ratio of timber and use value obtain larger raising.
In prior art, some adopt by softening timber poach or will the immersion of timber top layer after softening with heating using microwave, then carry out the surface compressed surface compressed material making, size is unstable, compression very easily recovers.
In prior art, also some adopts common water-soluble phenolic resin adhesive or pf resin of low molecular weight glue or low-molecular-weight melamine resin adehsive to carry out normal pressure impregnation process to timber, and the method such as densification makes again afterwards surface compressed material color is dark, dipping effect is poor, production efficiency is low.
Separately there is Chinese patent " surface compressed method of artificial forest softwood and products thereof " (ZL00120758.X). adopt artificial forest wood is placed in airtight container, the surface compressed material of vacuumizing, impregnate pf resin of low molecular weight, pressurized treatments, vacuumize, the step such as thermocompression forming being manufactured, has the advantages such as density is high, indeformable, dipping effect is good, surface property is good.But it deposits following deficiency: process artificial forest softwood in airtight container (1), and complex process, operation easier is large, production efficiency is low; (2) thermocompression forming pressure used is 16. 0-30. OMPa, does not indicate meter pressure or unit pressure, and technological parameter is indefinite, and operability is not strong; (3) hot pressing pressure is too large, has caused the utilization rate of timber greatly to reduce; (4) make the color of surface compressed material still partially dark.
Summary of the invention
The technical problem to be solved in the present invention is: for the variety of issue existing in prior art, provide that a kind of top layer density is high, intensity greatly, the preparation method of the surface compressed plate that not yielding, technique is simple, workable, color is more shallow.
The technical solution adopted in the present invention is: a kind of sheet material new material and application thereof, is characterized in that comprising the following steps:
(1), dry, artificial forest wood saw is cutd open and is processed into the sheet material that thickness is 10～2 5mm, and be dried to moisture content 20～30cYo;
(2), roll-in, by dried sheet material, be placed between two pressure rollers of roll squeezer and carry out radially roller of band
Press, thickness rate control when sheet material process pressure roller is at 10～30cYo;
(3), top layer impregnates, and by the one side of the surface part of the sheet material after roller process, accounts for sheet material thick immediately
15～25% of degree, is soaked in concentration and is in 10～25% light colour water-solubility pf resin of low molecular weight glue, in sheet material Recovery Process, absorbs glue; Or the sheet material after roll-in is soaked in immediately in the light colour water-solubility pf resin of low molecular weight glue that concentration is l0-25Yo and impregnates processing;
(4), steam is softening, and the sheet material after impregnating spray and steams softening processing, softening temperature is controlled at 120-140 DEG C, the time is 20-60min;
(5), top layer densification, the sheet material after softening is placed in to hot press and compresses, rate control exists
15～50% ask, hot pressing temperature is 160～180 DEG C, unit pressure is 1.5～4.5MPa; The method that adopts segmentation pressurization when compression, pressure increases to maximum pressure gradually, and heat-insulation pressure keeping in the time that compressed thickness reaches the thickness of design adopts finger gauge control thickness, and compression time is 1 .0～3 .Omin/mm; Stop afterwards heating, in the situation that keeping pressure, in press, pass into cooling water, be cooled to 50 DEG C of following rear release dischargings.
Described artificial forest fast growing wood is China fir, poplar or Eucalyptus.
In above-mentioned preparation method, use the light colour water-solubility pf resin of low molecular weight glue that can make sheet material color shoal, the raw material of this glue adopts phenol, formaldehyde, NaOH and melamine, the mol ratio of first three kind is pressed phenol: formaldehyde: NaOH=1:1.5～3.0:0.1～0.2, the input amount of melamine is 20～40% of phenol total amount, and processing step is as follows:
(a) dissolve phenol, in the time that temperature is 60～650C, add NaOH, addition accounts for 50～70% of always throwing amount of NaOH, reacts 20 minutes;
(b) add formaldehyde, addition accounts for 70～80% of always throwing amount of formaldehyde for the first time, is warming up to 85～950C, reacts 10-30 minutes; Cool to 60～750C, add second batch formaldehyde, addition accounts for 10～15% of always throwing amount of formaldehyde; And add NaOH, addition to account for 10～20% of always throwing amount of NaOH;
(c) be warming up to 85～950C, be incubated 10～20 minutes, add melamine, input amount is 20～40% of phenol total amount; And adding the 3rd crowd of formaldehyde and NaOH, the 10～15%, three batch of NaOH addition that the 3rd batch of formaldehyde addition accounts for always throwing amount of formaldehyde accounts for 10～40% of always throwing amount of NaOH; React 10～25 minutes;
(d) survey water number, in the time that water number reaches 5～10, the cool to room temperature that adds water, discharging.This light colour water-solubility pf resin of low molecular weight glue, color is iron cobalt colorimetric 5～8, solid content 40～45%, pH value is 9～11, and viscosity is 13～15 seconds (being coated with-4 glasss), and molecular weight 95% is between 250～450.
A kind of sheet material new material of the present invention and application thereof can be applicable on a kind of novel combined cabinet.
The present invention includes cabinet, refrigerator, kitchen cabinet, its structural feature is that described cabinet has been set up in parallel refrigerator, temp. controllable cabinet, kitchen cabinet, described refrigerator is provided with refrigeration, freezing two parts, described temp. controllable cabinet is provided with the thermosistor of temperature-adjustable, and described kitchen cabinet is provided with storage space not of uniform size.
The invention has the beneficial effects as follows:
1, high, the intensity of sheet material of the present invention top layer density greatly, not yielding; Technique is simple, needn't in airtight container, process artificial forest softwood, and production efficiency is higher; Technological parameter is clear and definite, workable; Color is more shallow, can be directly as the material of furniture, indoor decorating;
2, cabinet of the present invention, except meeting in daily life the demand of refrigerator and kitchen cabinet, can also pass through the temperature of thermosistor free adjustment temp. controllable cabinet, to reach the effect that regulates according to demand refrigerating space.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1, cabinet; 2, refrigerator; 3, temp. controllable cabinet; 4, kitchen cabinet; 5, thermosistor.
Detailed description of the invention
First prepare light colour water-solubility pf resin of low molecular weight glue, raw material adopts phenol, formaldehyde, NaOH and melamine, the mol ratio of first three kind is pressed phenol: formaldehyde: NaOH=1:1.5～3.0:0.1～0.2, the input amount of melamine is 20～40% of phenol total amount, and technical process is as follows:
(a) dissolve phenol, in the time that temperature is 60～65 DEG C, add NaOH, addition accounts for 50～70% of always throwing amount of NaOH, reacts 20 minutes;
(b) add formaldehyde, addition accounts for 70～80% of always throwing amount of formaldehyde for the first time, is warming up to 85～95 DEG C, reacts 10～30 minutes; Cool to 60～75 DEG C, add second batch formaldehyde, addition accounts for the 10-15% of always throwing amount of formaldehyde; And add NaOH, addition to account for the l0-20% of always throwing amount of NaOH;
(c) be warming up to 85～95 DEG C, be incubated 10～20 minutes, add melamine, input amount is the 20-40% of phenol total amount; And adding the 3rd crowd of formaldehyde and NaOH, the 10～15%, three batch of NaOH addition that the 3rd batch of formaldehyde addition accounts for always throwing amount of formaldehyde accounts for 10～40% of always throwing amount of NaOH; React 10～25 minutes;
(d) survey water number, in the time that water number reaches 5～10, the cool to room temperature that adds water, discharging.
Subsequent sheet material is processed, in the example method, only processing is impregnated in sheet material surface:
(1), dry, artificial forest wood China fir saw is cutd open and is processed into the sheet material that thickness is lOmm, and be dried to moisture content 20%;
(2), roll-in, by dried sheet material, be placed between two pressure rollers of roll squeezer and carry out radially roll-in of band, the thickness rate control of sheet material during through pressure roller is at lO%;
(3), top layer impregnates, and immediately by the one side of the surface part of the sheet material after roller process, accounts for 15% of sheet metal thickness, being soaked in concentration is that in the light colour water-solubility pf resin of low molecular weight glue of lO%, sheet material absorbs glue in Recovery Process;
(4), steam is softening, and the sheet material after impregnating spray and steams softening processing, softening temperature is controlled at 120 DEG C, the time is 20min;
(5), top layer densification, the sheet material after softening is placed in to hot press and compresses, rate control is between 15-50%, hot pressing temperature is 160 DEG C, unit pressure power 1.5MPa; The method that adopts segmentation pressurization when compression, pressure increases to maximum pressure 1.5MPa gradually, heat-insulation pressure keeping in the time that compressed thickness reaches the thickness of design, compression process adopts finger gauge control thickness, and compression time is 1 .Omin/mm; Stop afterwards heating, in the situation that keeping pressure, in press, pass into cooling water, be cooled to 50 DEG C of following rear release dischargings.
The present invention includes cabinet, refrigerator, kitchen cabinet, its architectural feature is that described cabinet 1 has been set up in parallel refrigerator 2, temp. controllable cabinet 3, kitchen cabinet 4, described refrigerator 2 is provided with refrigeration, freezing two parts, described temp. controllable cabinet 3 is provided with the thermosistor 5 of temperature-adjustable, and described kitchen cabinet 4 is provided with storage space not of uniform size.
Content described in this description embodiment is only enumerating of way of realization to the present invention design; protection scope of the present invention should not be regarded as being only confined to the concrete form that embodiment states, protection scope of the present invention also gives those skilled in the art and conceives the equivalent technologies means that can expect according to the present invention.
Claims (4)
1. sheet material new material and an application thereof, is characterized in that comprising the following steps:
(1), dry, artificial forest wood saw is cutd open and is processed into the sheet material that thickness is 10-25mm, and be dried to moisture content 20～30%;
(2), roll-in, by dried sheet material, be placed between two pressure rollers of roll squeezer and carry out radially roll-in of band, the thickness rate control of sheet material during through pressure roller is at 10-30%;
(3), top layer impregnates, and immediately by the one side of the surface part of the sheet material after roller process, accounts for 15～25% of sheet metal thickness, in the light colour water-solubility pf resin of low molecular weight glue that to steep in concentration be 10-25%, in sheet material Recovery Process, absorbs glue; Or it is in 10～25% light colour water-solubility pf resin of low molecular weight glue, to impregnate processing that the sheet material after roll-in is soaked in to concentration immediately:
(4), steam is softening, and the sheet material after impregnating spray and steams softening processing, softening temperature is controlled at 120-140 DEG C, time 20～60min;
(5), top layer densification, shrinkage is controlled between 15～50%, hot pressing temperature is 160-180 DEG C, unit pressure is 1.5-4.5MPa; The method that adopts segmentation pressurization when compression, pressure increases huge maximum pressure gradually, and heat-insulation pressure keeping in the time that compressed thickness reaches the thickness of design adopts finger gauge control thickness, and compression time is 1.0-3.Omin/mm; Stop afterwards heating, release discharging after keeping pressure in the situation that, passing into cooling water in press, being cooled to 50 DEG C.
2. the making of board according to claim 1 and application thereof, is characterized in that: described artificial forest fast-growing wood white fir wood, poplar or Eucalyptus.
3. the making of board according to claim 1 and 2 and application thereof, the raw material that it is characterized in that described light colour water-solubility amount phenolic resin glue adopts phenol, formaldehyde, NaOH and melamine, the mol ratio of first three kind is pressed phenol: an aromatic plant metioned in ancient books: NaOH=1:1.5～3.O:0.1～0.2, the input amount of melamine is 20～40% of phenol total amount, and processing step is as follows:
(a) dissolve phenol, in the time that temperature is 60～65 DEG C, add NaOH, addition accounts for 50～70% of always throwing amount of NaOH, reacts 20 minutes;
(b) add formaldehyde, addition accounts for the 70-80% of always throwing amount of formaldehyde for the first time, is warming up to 85～95 DEG C, reaction 10-30 minute; Cool to 60-75 DEG C, add second batch formaldehyde, addition accounts for 10～15% of always throwing amount of formaldehyde; And add NaOH, addition to account for 10～20% of always throwing amount of NaOH;
(c) be warming up to 85～95 DEG C, be incubated 10～20 minutes, add melamine, input amount is the 20-40% of phenol total amount; And adding the 3rd crowd of formaldehyde and NaOH, the 10～15%, three batch of NaOH addition that the 3rd batch of formaldehyde addition accounts for always throwing amount of formaldehyde accounts for 10～40% of always throwing amount of NaOH; React 10～25 minutes;
(d) survey water number, in the time that water number reaches 5～10, the cool to room temperature that adds water, discharging.
4. a sheet material new material and application thereof comprise cabinet, refrigerator, kitchen cabinet, it is characterized in that described cabinet has been set up in parallel refrigerator, temp. controllable cabinet, kitchen cabinet, described refrigerator is provided with refrigeration, freezing two parts, described temp. controllable cabinet is provided with the thermosistor of temperature-adjustable, and described kitchen cabinet 4 is provided with storage space not of uniform size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173327.9A CN104029261A (en) | 2014-04-28 | 2014-04-28 | Novel sheet material and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410173327.9A CN104029261A (en) | 2014-04-28 | 2014-04-28 | Novel sheet material and application thereof |
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| CN104029261A true CN104029261A (en) | 2014-09-10 |
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| CN201410173327.9A Pending CN104029261A (en) | 2014-04-28 | 2014-04-28 | Novel sheet material and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308934A (en) * | 2014-09-23 | 2015-01-28 | 李应杰 | Method for manufacturing fraxinus chinensis rod furniture |
| CN105563598A (en) * | 2015-12-12 | 2016-05-11 | 合肥三丰机电科技有限公司 | Manufacturing technique of domestic composite cabinet |
| CN107234692A (en) * | 2017-06-26 | 2017-10-10 | 中肯控股有限公司 | The preparation method of surface compressed plate |
-
2014
- 2014-04-28 CN CN201410173327.9A patent/CN104029261A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308934A (en) * | 2014-09-23 | 2015-01-28 | 李应杰 | Method for manufacturing fraxinus chinensis rod furniture |
| CN105563598A (en) * | 2015-12-12 | 2016-05-11 | 合肥三丰机电科技有限公司 | Manufacturing technique of domestic composite cabinet |
| CN107234692A (en) * | 2017-06-26 | 2017-10-10 | 中肯控股有限公司 | The preparation method of surface compressed plate |
| CN107234692B (en) * | 2017-06-26 | 2019-03-05 | 中山市海邦家具实业有限公司 | The preparation method of surface compressed plate |
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Application publication date: 20140910 |
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