CN110370404A - A kind of plate new material and its application - Google Patents

Abstract

The present invention relates to a kind of plate new material and its applications.That the problem to be solved by the invention is to provide a kind of surface layer density is high, it is slight it is big, be unlikely to deform, the production and its application of simple process, the board that controllability is strong, color is shallower.Solving the problems, such as this, the technical scheme comprises the following steps: (1) dry, moisture content 20~30%；(2) roll-in, rate control is 10~30%；(3) surface layer is impregnated, and the one or both sides of plate is soaked in the light colour water-solubility pf resin of low molecular weight glue that concentration is 10~25%；(4) steam softens, and at 120~140 DEG C, the time is 20~60min for softening temperature control；(5) surface layer densification, for rate control between 15~50%, hot pressing temperature is 160~180 DEG C, and unit pressure is 1.5~4.5Mpa.Present invention can apply to the kitchen cabinets of temperature controllable, are equally applicable to the fields such as Furniture manufacture, indoor decorating.

Description

A kind of plate new material and its application

Technical field

The present invention relates to a kind of plate new material and its applications.Suitable for being applied to the kitchen cabinet of temperature controllable, can also fit For fields such as Furniture manufacture, indoor decoratings.

Background technique

Currently, China, which is in, largely develops and is subject to the stage using artificial forest fast growing wood, but artificial forest wood material It is loose, density is lower, mechanical strength is poor, cannot be directly as the material of furniture, indoor decorating etc..For the above-mentioned people of customer service The shortcomings that work forest timber, the prior art generally use the methods of dipping, densification and strengthen to it, wherein passing through densification method system Ordinary Compression wood, surface compressedization timber (surface compressed material), compression shaping wood etc. make the hardness, close of artificial forest wood Degree, intensity have obtained larger raising, realize the high-quality use of low-grade wood.Especially surface compressed material it pass through to artificial forest The surface layer of timber carries out pressure densification process, and the hardness of needs, intensity can be concentrated on to the surface layer of timber, and non-densification part is still protected Lower density is held, timber has not only been made to have the very high ratio of strength to weight, but also the utilization efficiency of timber and use value is made to have obtained larger mention It is high.

In the prior art, some soften or will be softened after the immersion of timber surface layer with microwave heating using by timber boiling, Surface compressed surface compressed material obtained is carried out again, and size is unstable, compressive deformation easily restores.

In the prior art, also some use conventional water-soluble phenolic resin glue or pf resin of low molecular weight glue or low molecule It measures melamine resin adehsive and normal pressure impregnation is carried out to timber, later surface compressed material color made from the methods of densification again Deeply, dipping effect is poor, production efficiency is low.

Separately having Chinese patent " surface compressed method of artificial forest softwood and products thereof " (ZL00120758.X) to use will Artificial forest wood is put in a sealed container, is vacuumized, impregnates pf resin of low molecular weight, pressurized treatments, vacuumizes, hot pressing Sizing and etc. manufacture surface compressed material, have many advantages, such as that density is high, indeformable, dipping effect is good, surface property is good.But it It deposits following deficiency: (1) artificial forest softwood being handled in a sealed container, complex process, operation difficulty are big, production is imitated Rate is low；(2) pressure used in thermocompression forming is 16.0-30.OMPa, does not indicate meter pressure or unit pressure, technique ginseng Number is indefinite, and operability is not strong；(3) hot pressing pressure is too big, and the utilization rate of timber has been caused to be greatly lowered；(4) surface is made The color of densification material is still partially deep.

Summary of the invention

The technical problem to be solved by the present invention is being directed to various problems existing in the prior art, it is close to provide a kind of surface layer The production method for the surface compressed plate that degree is high, intensity is big, be unlikely to deform, simple process, strong operability, color are shallower.

The technical scheme adopted by the invention is that: a kind of plate new material and its application, it is characterised in that including following step It is rapid:

(1), dry, artificial forest wood saw is cutd open into the plate being processed into a thickness of 10~2 5mm, and be dried to moisture content 20 ~30cYo；

(2), the plate after drying is placed in progress band radial direction roller between two pressure rollers of roll squeezer by roll-in

Pressure, thickness reduction when plate passes through pressure roller are controlled in 10~30cYo；

(3), surface layer is impregnated, and immediately by the one side of the surface part of the plate after roller process, accounts for plate thickness

The 15~25% of degree are soaked in the light colour water-solubility pf resin of low molecular weight glue that concentration is 10~25%, Glue is absorbed in plate Recovery Process；Or the plate after roll-in is soaked in the light colour water-solubility that concentration is l0-25Yo immediately Immersion treatment is carried out in pf resin of low molecular weight glue；

(4), steam softens, and carries out steam-injection sofening treatment to the plate after impregnating, and softening temperature is controlled at 120-140 DEG C, Time is 20-60min；

(5), the plate after softening is placed in hot press and compresses by surface layer densification, and rate control exists

15~50% ask, hot pressing temperature is 160~180 DEG C, and unit pressure is 1.5~4.5MPa；It uses and divides when compression The method of section pressurization, pressure are gradually increased to maximum pressure, the heat-insulation pressure keeping when compressed thickness reaches the thickness of design, using thickness Metric controls thickness, and compression time is 1.0~3.Omin/mm；Stop heating later, in the case where keeping pressure, to press In be passed through cooling water, be cooled to releases discharging after 50 DEG C or less.

The artificial forest fast growing wood is China fir, poplar or Eucalyptus.

The light colour water-solubility pf resin of low molecular weight glue that can make plate lighter has been used in above-mentioned production method, it should The raw material of glue uses phenol, formaldehyde, sodium hydroxide and melamine, and the molar ratio of first three is by phenol: formaldehyde: sodium hydroxide= 1:1.5~3.0:0.1~0.2, the input amount of melamine are the 20~40% of phenol total amount, and processing step is as follows:

(a) dissolve phenol, when temperature be 60~650C when, be added NaOH, additional amount account for NaOH always throwing amount 50~70%, Reaction 20 minutes；

(b) be added formaldehyde, first time additional amount account for formaldehyde always throwing amount 70~80%, be warming up to 85~950C, react 10-30 minutes；Cool to 60~750C, be added second batch formaldehyde, additional amount account for formaldehyde always throwing amount 10~15%；And it is added NaOH, additional amount account for NaOH always throwing amount 10~20%；

(c) be warming up to 85~950C, keep the temperature 10~20 minutes, be added melamine, input amount be phenol total amount 20~ 40%；And third crowd formaldehyde and NaOH is added, third batch formaldehyde additional amount account for formaldehyde always throwing amount 10~15%, third batch NaOH Additional amount account for NaOH always throwing amount 10~40%；Reaction 10~25 minutes；

(d) survey water number adds water to be cooled to room temperature when water number reaches 5~10, discharges.The light colour water-solubility low molecular weight Phenolic resin glue, color are iron cobalt colorimetric 5~8, and solid content 40~45%, pH value is 9~11, and viscosity is (to apply -4 in 13~15 seconds Cup), molecular weight 95% is between 250~450.

A kind of plate new material of the present invention and its application can be applicable on a kind of novel compositions cabinet.

The present invention includes cabinet body, refrigerator, kitchen cabinet, and structural feature is that refrigerator, temperature controllable has been set side by side in the cabinet body Cabinet body, kitchen cabinet, the refrigerator are provided with refrigeration, freezing two parts, and the temperature controllable cabinet body is provided with the temperature adjustment of temperature-adjustable Device, the kitchen cabinet are provided with storage space not of uniform size.

The beneficial effects of the present invention are:

1, plate surface layer of the present invention density is high, intensity is big, is unlikely to deform；Simple process, it is not necessary in a sealed container to people Work woods softwood is handled, and production efficiency is higher；Technological parameter is clear, strong operability；Color is shallower, can be directly as The material of furniture, indoor decorating；

2, cabinet of the invention can also pass through tune other than can meet in daily life the needs of to refrigerator and kitchen cabinet Warm device freely adjusts the temperature of temperature controllable cabinet body, to have the function that adjust refrigerating space according to demand.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the embodiment of the present invention.

In figure: 1, cabinet body；2, refrigerator；3, temperature controllable cabinet body；4, kitchen cabinet；5, thermosistor.

Specific embodiment

Light colour water-solubility pf resin of low molecular weight glue is prepared first, and raw material uses phenol, formaldehyde, sodium hydroxide and trimerization The molar ratio of cyanamide, first three presses phenol: formaldehyde: sodium hydroxide=1:1.5~3.0:0.1~0.2, the input amount of melamine It is the 20~40% of phenol total amount, technical process is as follows:

(a) dissolve phenol, when temperature be 60~65 DEG C when, be added NaOH, additional amount account for NaOH always throwing amount 50~70%, Reaction 20 minutes；

(b) be added formaldehyde, first time additional amount account for formaldehyde always throwing amount 70~80%, be warming up to 85~95 DEG C, reaction 10 ~30 minutes；It cools to 60~75 DEG C, is added second batch formaldehyde, additional amount accounts for the 10-15% of the total throwing amount of formaldehyde；And it is added NaOH, additional amount account for the l0-20% of the total throwing amount of NaOH；

(c) 85~95 DEG C are warming up to, keeps the temperature 10~20 minutes, melamine is added, input amount is the 20- of phenol total amount 40%；And third crowd formaldehyde and NaOH is added, third batch formaldehyde additional amount account for formaldehyde always throwing amount 10~15%, third batch NaOH Additional amount account for NaOH always throwing amount 10~40%；Reaction 10~25 minutes；

(d) survey water number adds water to be cooled to room temperature when water number reaches 5~10, discharges.

Subsequently plate is handled, Immersion treatment only is carried out to a surface of plate in the example method:

(1), dry, artificial forest wood China fir saw is cutd open into the plate being processed into a thickness of lOmm, and be dried to moisture content 20%；

(2), the plate after drying is placed in progress band radial direction roll-in between two pressure rollers of roll squeezer, plate warp by roll-in Thickness reduction when crossing pressure roller is controlled in lO%；

(3), surface layer is impregnated, and immediately by the one side of the surface part of the plate after roller process, accounts for about plate thickness 15%, it is soaked in the light colour water-solubility pf resin of low molecular weight glue that concentration is lO%, plate absorbs glue in Recovery Process Liquid；

(4), steam softens, and carries out steam-injection sofening treatment to the plate after impregnating, and softening temperature control is at 120 DEG C, the time For 20min；

(5), the plate after softening is placed in hot press and compresses by surface layer densification, rate control 15-50% it Between, hot pressing temperature is 160 DEG C, unit pressure power 1.5MPa；Using the method for segmentation pressurization when compression, pressure is gradually increased to most High pressure 1.5MPa, the heat-insulation pressure keeping when compressed thickness reaches the thickness of design, compression process control thickness, pressure using finger gauge The contracting time is 1.Omin/mm；Stop heating later, in the case where keeping pressure, cooling water is passed through into press, is cooled to 50 DEG C or less after release discharging.

The present invention includes cabinet body, refrigerator, kitchen cabinet, and structure feature is that refrigerator 2, adjustable has been set side by side in the cabinet body 1 Warm cabinet body 3, kitchen cabinet 4, the refrigerator 2 are provided with refrigeration, freezing two parts, and the temperature controllable cabinet body 3 is provided with temperature-adjustable Thermosistor 5, the kitchen cabinet 4 is provided with storage space not of uniform size.

Content described in this specification embodiment is only enumerating to the way of realization of present inventive concept, guarantor of the invention Shield range is not construed as being limited only to the concrete form that embodiment is stated, protection scope of the present invention also gives this field Technical staff conceive according to the present invention it is conceivable that equivalent technologies mean.

Claims (3)

1. a kind of plate new material and its application, it is characterised in that the following steps are included:

(1), dry, artificial forest wood saw is cutd open into the plate being processed into a thickness of 10-25mm, and be dried to moisture content 20~ 30%；

(2), the plate after drying is placed in progress band radial direction roll-in between two pressure rollers of roll squeezer, plate is through over-voltage by roll-in Thickness reduction when roller is controlled in 10-30%；

(3), surface layer is impregnated, and immediately by the one side of the surface part of the plate after roller process, accounts for the 15~25% of plate thickness, It steeps in the light colour water-solubility pf resin of low molecular weight glue that concentration is 10-25%, absorbs glue in plate Recovery Process；Or Plate after roll-in is soaked in the light colour water-solubility pf resin of low molecular weight glue that concentration is 10~25% immediately and carries out by person Immersion treatment:

(4), steam softens, and carries out steam-injection sofening treatment to the plate after impregnating, and softening temperature control is at 120-140 DEG C, the time 20~60min；

(5), surface layer densification, shrinkage control between 15~50%, and hot pressing temperature is 160-180 DEG C, unit pressure 1.5- 4.5MPa；Using the method for segmentation pressurization when compression, pressure gradually increases huge maximum pressure, when compressed thickness reaches the thickness of design When heat-insulation pressure keeping, using finger gauge control thickness, compression time 1.0-3.Omin/mm；Stop heating later, keeps pressure In the case where, cooling water is passed through into press, release discharges after being cooled to 50 DEG C.

2. the production and its application of board according to claim 1, it is characterised in that: the artificial forest fast-growing wood is white China fir, poplar or Eucalyptus.

3. the production and its application of board according to claim 1 or 2, it is characterised in that light colour water-solubility The raw material of son amount phenolic resin glue uses phenol, formaldehyde, sodium hydroxide and melamine, and the molar ratio of first three presses phenol: an aromatic plant metioned in ancient books: Sodium hydroxide=1:1.5~3.O:0.1~0.2, the input amount of melamine are the 20~40% of phenol total amount, and processing step is such as Under:

(a) dissolve phenol, when temperature be 60~65 DEG C when, be added NaOH, additional amount account for NaOH always throwing amount 50~70%, reaction 20 minutes；

(b) formaldehyde is added, first time additional amount accounts for the 70-80% of the total throwing amount of formaldehyde, is warming up to 85~95 DEG C, 10-30 points of reaction Clock；Cool to 60-75 DEG C, be added second batch formaldehyde, additional amount account for formaldehyde always throwing amount 10~15%；And NaOH is added, it is added Amount account for NaOH always throwing amount 10~20%；

(c) 85~95 DEG C are warming up to, keeps the temperature 10~20 minutes, melamine is added, input amount is the 20-40% of phenol total amount； And third crowd formaldehyde and NaOH is added, third batch formaldehyde additional amount account for formaldehyde always throwing amount 10~15%, third batch NaOH is added Amount account for NaOH always throwing amount 10~40%；Reaction 10~25 minutes；

(d) survey water number adds water to be cooled to room temperature when water number reaches 5~10, discharges.