The three-dimensional good antistatic decorated board of antistatic effect and preparation method
Technical field
The present invention relates to antistatic decorated board and preparation method, especially a kind of antistatic compact grade laminate and preparation method.
Background technology
Kang Beite plate, as a kind of decorative panel, is at high temperature under high pressure through the one-body molded ornament materials dissolved and irreversible age-hardening produces.This kind of sheet material matter stability is high, shock-proof shatter-resistant, cold-resistant heat-resisting and have fire-resistant protection against the tide and resistance to cigarette to burn characteristic, its density is many at 1.4 ~ 1.5g/cm
3between.The range of application of described decorative panel is very extensive, on to aerospace industry down to common people's commodity, kitchen tools table top in life staying idle at home, washing table top, dining table, desk, door leaf, and even the bath lavatory compartment of public place, wash platform, reception counters, article placing cabinet, ceiling, desk and office cubicles etc., all can adopt decorative panel to make.
The region such as machine room, electronic equipment, electrostatic hazard is larger, electrostatic produces and easily causes device damage, initiation fire, cause electronic failure or misoperation, cause electromagnetic interference, puncture integrated circuit and precision electronic element, or acceleration components is aging, reduce and to manufacture a finished product rate, high voltage electrostatic discharge also can form electric shock and jeopardize personal safety, very easily sets off an explosion and fire at inflammable explosive article or dust, Workplace that mist of oil is many.In addition, under being chronically exposed to static radiation, can make people's lather, headache, uncomfortable in chest, expiratory dyspnea, cough.Therefore, in today that electronic product is seen everywhere, the antistatic particular importance that seems effectively.
General anti-static plate sheet resistance is 10
7~ 10
9ohm, is only very thin one deck, needs to stick on other composite, uses trouble, cost high, and water-fast being difficult to of preventing fires meets life requirement; Critical facility is as aircraft, spaceship etc., and simple antistatic surface cannot meet the normal demand for security run.Under the prerequisite not changing the premium properties such as existing decorative panel high density, traditional handicraft is difficult to make it reach antistatic rank (i.e. surface three-dimensional resistance 10
3~ 10
6ohm), although some sheet resistances can be up to standard, but bulk resistor is not all right again, and this becomes the difficult point breaking through prior art.Thus, in the urgent need to developing surface and the whole anlistatig excellent sheet material of solid.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of surface and three-dimensional resistance less and not easily disappear lastingly take off, antistatic decorated board that production cost is lower and preparation method.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: antistatic decorated board, comprise the facing paper on central layer and central layer two sides, central layer is made up of following raw materials by weight, fiber 40 ~ 50%, Fen Chuo resin 35 ~ 45%, antistatic additive 3 ~ 8%, carbon black 5 ~ 10%, coupling agent 1 ~ 3%; Facing paper surface is coated with antistatic additive.
Facing paper is formed by the melmac immersion stain containing antistatic additive.
Carbon black pellet diameter is less than or equal to the width of fiber grain.Carbon black must be inertia, needs not decompose at high temperature under high pressure, be not oxidized, flame resistant and do not inhale the inorganic matter of temperature.Carbon black pellet and antistatic additive, under the effect of resin and coupling agent, by permeable fiber, cover fiber surface, make fiber grain be in inert condition, if particle diameter is excessive, carbon black pellet just can not permeable fiber and cover fiber surface completely; Carbon black pellet diameter is less than or equal to the width of fiber grain, could permeate evenly, suppresses out the suitable and bulk resistor of decorative panel side blackness and stablizes.
Fiber grain length 5 ~ 10mm, width 0.01 ~ 0.5mm, carbon black pellet diameter is 0.01 ~ 0.3mm.
Carbon black pellet diameter is 0.01 ~ 0.1mm.
Antistatic additive is selected from quaternary amine, phosphate, sulfide, sulfate, octadecyldimethyl ethoxy quaternary ammonium nitric acid
One or more in salt, succinic acid Diisooctyl sulfoacid calcium in-603.
Coupling agent is KH-570, it is a kind of organo functional silanes's coupling agent, for raising fiberglass reinforced and the mechanical electric performance that can improve them containing the thermosetting resin of inorganic filler, outside its corresponding country, the trade mark is U.S. union carbide corporation A-174, Dow corning company Z-603, Japan XINYUE KBM-503, its chemical name γ-methacryloxypropyl trimethoxy silane.
The preparation method of above-mentioned antistatic decorated board, comprises the following steps:
(1) take raw material for standby in proportion, wherein carbon black pellet diameter is less than or equal to the width of fiber grain;
(2) antistatic additive is divided into a, b, c tri-parts by weight 2:2:6, a part and b part antistatic additive add in carbon black and fiber respectively, then carbon black and fiber are mixed under high wind effect, 160 DEG C of oven dry, and mixture is for subsequent use; The antistatic additive of coupling agent and surplus is added in phenolic resins, mixes and be heated to 40 DEG C ~ 50 DEG C and make adhesive, cooling
To room temperature;
(3) adhesive obtained for step (2) is sprayed join in the obtained mixture of step (2), mix, again
70 DEG C ~ 100 DEG C oven dry, mixture is for subsequent use;
(4) mixture machinery on hot press that step (3) is obtained is mated formation, after precompressed hot pressing, make central layer;
(5) suppress after sticking the facing paper being coated with antistatic additive on the two sides of central layer, to obtain final product.
Precompressed temperature 20 ~ 50 DEG C, pressure 2.5 ~ 4MPA, 20 ~ 30 seconds time in step (4), hot pressing temperature 150 ~ 180 DEG C, maximum pressure 4 ~ 5MPA and pressure is decremented to zero gradually, 20 ~ 30 seconds time; Press temperature 130 ~ 160 degree, pressure 8 ~ 10MPA, 90 ~ 150 minutes time in step (5).
The facing paper being coated with antistatic additive is formed by the melmac immersion stain containing antistatic additive; Melmac liquid mixes make by melmac 850KG, flexibility agent 70KG, antistatic additive 50KG, light stabilizer 30KG; Flexibility agent is diethylene glycol, and antistatic additive is vulcanized sodium, and light stabilizer is light stabilizer 292.
Antistatic decorated board of the present invention, by adding antistatic additive respectively in the facing paper of central layer and two sides thereof, forms inner and the coefficient three-dimensional antistatic effect in surface.Research show that decorative panel product of the present invention meets GB/T7911-1999 standard, have antistatic, intensity is high, cohesive force is strong, anti-ultraviolet feature, product density is at 1.45g/cm
2left and right, under the prerequisite not changing the premium properties such as decorative panel high density, antistatic property reaches LY/T1330-201110
4~ 10
6ohm rank, uses safer, can meet special industry or place (as space flight, machine room, electric power, weaving etc.) to the anlistatig requirement of building and ornament materials, and surface and three-dimensional antistatic property lastingly, not easily disappear, and carbon black itself has electric conductivity.In addition, the present invention changes the characteristic that traditional decoration plate paper using is done, and adopts fiber and replaces brown paper, reaching the object reduced costs.
Detailed description of the invention
Embodiment 1
(1) raw material for standby is taken by following percentage by weight, fiber 45%, Fen Chuo resin 40%, antistatic additive (octadecyldimethyl ethoxy quaternary ammonium sodium nitrate and sodium phosphate are by weight the mixture of 5:5) 5%, carbon black 8%, coupling agent (KH-570) 2%; Wherein fiber adopts tree skill crotch to be raw material, and through washing, defibrator process is made, fiber grain length 5 ~ 10mm, width 0.01 ~ 0.3mm, and carbon black pellet diameter is 0.01 ~ 0.1mm;
(2) antistatic additive is divided into a, b, c tri-parts by weight 2:2:6, a part and b part antistatic additive add in carbon black and fiber respectively, then carbon black and fiber are mixed under high wind effect, 160 DEG C of oven dry, and mixture is for subsequent use; The antistatic additive of coupling agent and surplus is added in phenolic resins, mixes and be heated to 40 DEG C ~ 50 DEG C and make adhesive, be cooled to room temperature;
(3) utilized by adhesive obtained for step (2) glue spraying machine high-pressure injection (glue spraying pressure is 7mpa) to join in the obtained mixture of step (2), mix, 70 DEG C of oven dry again, mixture is for subsequent use; Sprayed adhesive post-baking temperature can not be too high, must not more than 100 DEG C, one is to ensure time of contact, and two is to prevent adhesive premature cure.
(4) mat formation mixture machinery on hot press obtained for step (3) (can not vacuum in order to avoid uneven), makes central layer after precompressed hot pressing; Precompressed temperature 20 ~ 50 DEG C, pressure 3MPA, time 30 seconds, hot pressing temperature 170 ~ 180 DEG C, maximum pressure 4MPA and pressure is decremented to zero gradually, 30 seconds time;
(5) suppress after sticking the facing paper being coated with antistatic additive on the two sides of central layer, press temperature 130 ~ 150 degree, pressure 9MPA, time 130 minutes, to obtain final product.
The facing paper being coated with antistatic additive is formed by the melmac immersion stain containing antistatic additive; Calculate by 1000KG, take melmac 850KG, flexibility agent (diethylene glycol) 70KG, antistatic additive (vulcanized sodium) 50KG, light stabilizer (light stabilizer 292) 30KG mix and make melmac liquid, facing paper is flooded above-mentioned resin liquid, dries and shear, to obtain final product.
Embodiment 2
(1) raw material for standby is taken by following percentage by weight, fiber 40%, Fen Chuo resin 45%, antistatic additive (vulcanized sodium and quaternary amine (tetrabutyl ammonium fluoride) are by weight 5:5 mixture) 4%, carbon black 8%, coupling agent (KH-570) 3%; Wherein fiber adopts tree skill crotch to be raw material, and through washing, defibrator process is made, fiber grain length 5 ~ 10mm, width 0.01 ~ 0.5mm, and carbon black pellet diameter is 0.01 ~ 0.3mm;
(2) antistatic additive is divided into a, b, c tri-parts by weight 2:2:6, a part and b part antistatic additive add in carbon black and fiber respectively, then carbon black and fiber are mixed under high wind effect, 160 DEG C of oven dry, and mixture is for subsequent use; The antistatic additive of coupling agent and surplus is added in phenolic resins, mixes and be heated to 40 DEG C ~ 50 DEG C and make adhesive, be cooled to room temperature;
(3) utilized by adhesive obtained for step (2) glue spraying machine high-pressure injection (glue spraying pressure is 7mpa) to join in the obtained mixture of step (2), mix, 80 DEG C of oven dry again, mixture is for subsequent use; Sprayed adhesive post-baking temperature can not be too high, must not more than 100 DEG C, one is to ensure time of contact, and two is to prevent adhesive premature cure.
(4) mat formation mixture machinery on hot press obtained for step (3) (can not vacuum in order to avoid uneven), makes central layer after precompressed hot pressing; Precompressed temperature 40 ~ 50 DEG C, pressure 3MPA, time 20 seconds, hot pressing temperature 150 ~ 170 DEG C, maximum pressure 5MPA and pressure is decremented to zero gradually, 20 seconds time;
(5) suppress after sticking the facing paper being coated with antistatic additive on the two sides of central layer, press temperature 140 ~ 160 degree, pressure 9MPA, time 90 minutes, to obtain final product.
The facing paper being coated with antistatic additive is formed by the melmac immersion stain containing antistatic additive; Calculate by 1000KG, take melmac 850KG, flexibility agent (diethylene glycol) 70KG, antistatic additive (vulcanized sodium) 50KG, light stabilizer (light stabilizer 292) 30KG mix and make melmac liquid, facing paper is flooded above-mentioned resin liquid, dries and shear, to obtain final product.
Embodiment 3
(1) raw material for standby is taken by following percentage by weight, fiber 50%, Fen Chuo resin 35%, antistatic additive (in succinic acid Diisooctyl sulfoacid calcium-603 with sodium sulphate by weight the mixture of 5:5) 8%, carbon black 5.5%, coupling agent (KH-570) 1.5%; Wherein fiber adopts tree skill crotch to be raw material, and through washing, defibrator process is made, fiber grain length 5 ~ 10mm, width 0.01 ~ 0.5mm, and carbon black pellet diameter is 0.01 ~ 0.3mm;
(2) antistatic additive is divided into a, b, c tri-parts by weight 2:2:6, a part and b part antistatic additive add in carbon black and fiber respectively, then carbon black and fiber are mixed under high wind effect, 160 DEG C of oven dry, and mixture is for subsequent use; The antistatic additive of coupling agent and surplus is added in phenolic resins, mixes and be heated to 45 DEG C ~ 50 DEG C and make adhesive, be cooled to room temperature;
(3) utilized by adhesive obtained for step (2) glue spraying machine high-pressure injection (glue spraying pressure is 7mpa) to join in the obtained mixture of step (2), mix, 80 DEG C of oven dry again, mixture is for subsequent use; Sprayed adhesive post-baking temperature can not be too high, must not more than 100 DEG C, one is to ensure time of contact, and two is to prevent adhesive premature cure.
(4) mat formation mixture machinery on hot press obtained for step (3) (can not vacuum in order to avoid uneven), makes central layer after precompressed heat; Precompressed temperature 20 ~ 50 DEG C, pressure 3.5MPA, time 30 seconds, hot pressing temperature 170 ~ 180 DEG C, maximum pressure 5MPA and pressure is decremented to zero gradually, 30 seconds time;
(5) suppress after sticking the facing paper being coated with antistatic additive on the two sides of central layer, press temperature 130 ~ 150 degree, pressure 9.5MPA, time 130 minutes, to obtain final product.
The facing paper being coated with antistatic additive is formed by the melmac immersion stain containing antistatic additive; Calculate by 1000KG, take melmac 850KG, flexibility agent (diethylene glycol) 70KG, antistatic additive (vulcanized sodium) 50KG, light stabilizer (light stabilizer 292) 30KG mix and make melmac liquid, facing paper is flooded above-mentioned resin liquid, dries and shear, to obtain final product.
By the relevant performance of SJ/T11236-2001 and GB/T7911-1999 standard test embodiment 1 to 3 and commercially available a kind of decorative panel (commercially available prod 1) and a kind of composite anti-static plate (commercially available prod 2, with density board compound), result is as shown in table 1.
Table 1 antistatic decorated board of the present invention and commercially available prod performance test results