CN113716894B - Preparation method of GFK (glass fiber reinforced plastic) antibacterial plate - Google Patents
Preparation method of GFK (glass fiber reinforced plastic) antibacterial plate Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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Abstract
The invention belongs to the field of buildings, and particularly relates to a preparation method of a GFK (glass fiber reinforced plastic) antibacterial plate, which comprises the following components in parts by mass: 10 to 14 portions of resin, 0.3 to 0.5 portion of antioxidant, 0.2 to 0.4 portion of medium temperature curing agent, 0.3 to 0.5 portion of BHT, 0.02 to 0.05 portion of dispersant, 0.1 to 0.3 portion of PE powder, 0.05 to 0.08 portion of PBQ, 0.07 to 0.09 portion of color paste, 0.04 to 0.07 portion of magnesium oxide, 0.65 to 1.15 portions of zinc stearate, 60 to 70 portions of aluminum hydroxide, 5 to 6 portions of calcium carbonate, 0.5 to 1.2 portions of antibacterial agent, 0.5 to 1.2 portions of negative oxygen ion powder, 10 to 20 portions of glass fiber and 0.5 to 0.7 portion of glass fiber cloth, and provides a specific preparation method. The invention solves the problem of poor antibacterial performance of the existing building material, utilizes the negative oxygen ion powder and the antibacterial agent to form a composite antibacterial system, and utilizes the active system of the negative oxygen ions to be matched with the antibacterial system of the inorganic material to form the synergistic effect among electrons, thereby achieving the effect of high-efficiency antibacterial.
Description
Technical Field
The invention belongs to the field of buildings, and particularly relates to a preparation method of a GFK (glass fiber reinforced plastic) antibacterial plate.
Background
Public health problems such as infectious disease prevention and treatment, infectious disease hospital construction and the like are brought into the important social development target responsibility of all levels of governments in China, and also brought into the important agenda of all levels of governments, so that cross infection among doctors and patients is prevented after serious epidemic situations occur; the functions of antibiosis and negative oxygen ion release in medical environment; the fabricated building meets the requirements of the peacetime combined type, and new standards are provided for materials used in medical construction. However, the materials used in the current medical construction can not meet the control requirements of the epidemic situation of the novel fulminant infectious disease.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a preparation method of a GFK antibacterial plate, which solves the problem of poor antibacterial performance of the existing building material, utilizes negative oxygen ion powder and an antibacterial agent to form a composite antibacterial system, and utilizes an active system of negative oxygen ions to be matched with an antibacterial system of an inorganic material to form a synergistic effect among electrons, thereby achieving the effect of high-efficiency antibacterial.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
a preparation method of a GFK antibacterial plate comprises the following steps of: 10 to 14 portions of resin, 0.3 to 0.5 portion of antioxidant, 0.2 to 0.4 portion of medium temperature curing agent, 0.3 to 0.5 portion of BHT, 0.02 to 0.05 portion of dispersant, 0.1 to 0.3 portion of PE powder, 0.05 to 0.08 portion of PBQ, 0.07 to 0.09 portion of color paste, 0.04 to 0.07 portion of magnesium oxide, 0.65 to 1.15 portions of zinc stearate, 60 to 70 portions of aluminum hydroxide, 5 to 6 portions of calcium carbonate, 0.5 to 1.2 portions of antibacterial agent, 0.5 to 1.2 portions of negative oxygen ion powder, 10 to 20 portions of glass fiber and 0.5 to 0.7 portion of glass fiber cloth.
Further, the GFK antibacterial plate comprises the following components in percentage by mass: 11.5 parts of resin, 0.49 part of antioxidant, 0.29 part of medium-temperature curing agent, 0.39 part of BHT, 0.04 part of dispersant, 0.2 part of PE powder, 0.06 part of PBQ, 0.08 part of color paste, 0.05 part of magnesium oxide, 0.98 part of zinc stearate, 63.34 parts of aluminum hydroxide, 5.89 parts of calcium carbonate, 0.98 part of antibacterial agent, 0.98 part of negative oxygen ion powder, 14.13 parts of glass fiber and 0.6 part of glass fiber cloth.
The resin is made of PP or PVC material.
The antioxidant adopts antioxidant 168 or antioxidant 626.
The medium-temperature curing agent is a UV curing agent which is a polyurethane acrylate prepolymer, and further the UV curing agent contains epoxy resin, and the mass ratio of the epoxy resin to the UV curing agent is 4: 1.
The dispersing agent adopts polyethylene glycol.
The antibacterial agent is silver-series granular antibacterial agent, and further, the antibacterial agent is silicon-oxygen-based silver ionsThe antibacterial agent has good transparency, and does not affect the color and the transparency of the plastic when added into the plastic; the preparation method of the siloxy silver ion antibacterial agent comprises the following steps: a1, adding tetrabutyl titanate into glacial acetic acid, stirring until the tetrabutyl titanate is completely dispersed to form a titanium-acetic acid solution, wherein the concentration of the tetrabutyl titanate in the glacial acetic acid is 100-2000 g/L, and the stirring speed is 1000-2000 r/min; a2, slowly adding silver acetate into the solution until excessive silver acetate forms a precipitate, filtering and airing to obtain a plating film crystal; the adding amount of the silver acetate is 30-70% of the mass of the n-butyl titanate, the slow adding speed in glacial acetic acid per liter is 4-5g/min, and the airing temperature is 40-60 ℃; a3, adding ethyl silicate into ether to form a silicon ether solution; then spraying the solution on the surface of the coated crystal at constant temperature to form a secondary coated crystal; the concentration of ethyl silicate in anhydrous ether is 30-60g/L, the spraying speed of constant temperature spraying is 0.5-0.9mL/min, and the spraying amount is 1-2mL/cm2The temperature is 50-70 ℃; at the moment, the ethyl ether steam can loosen the n-butyl titanate liquid film coated at the previous time, and the subsequent ethyl silicate is permeated into the n-butyl titanate film to form a stable connection structure; a4, standing the secondary film coating crystal in a reaction kettle, introducing mixed gas containing water vapor for treatment for 30-50min, and purging to obtain the prefabricated antibacterial agent, wherein the standing temperature is 100-110 ℃, the mixed gas is mixed gas of water vapor and nitrogen, the volume ratio of the water vapor is 6-10%, the treatment temperature of the mixed gas is 100-110 ℃, the purging adopts dry nitrogen, and the temperature is 90-100 ℃; a5, reducing the prepared antibacterial agent for 1-2h by hydrogen to obtain the antibacterial agent, wherein the reduction temperature is 80-100 ℃, and the step converts the silver oxide inside into silver particles to form an antibacterial system with a multilayer shell-core structure. The antibacterial agent takes silicon oxide and titanium oxide as shell structures, so that good structural stability is embodied, a good transparent effect is achieved, resin in plastic is prevented from wrapping silver particles to cause surface covering and inactivation, a mesoporous structure formed by the silicon oxide and the titanium oxide always keeps a mesoporous system, certain permeability of the silver particles is ensured, and inactivation is difficult. Titanium oxide belongs to a titanium dioxide structure and forms surface electron migration under the action of negative ionsTherefore, certain activity is shown, the activity also has antibacterial property, and a long-acting complementary structure can be formed with the silver particles, so that the long-term property of the antibacterial property is ensured.
The negative oxygen ion powder adopts tourmaline-based negative ion powder, and can form stable negative ion generation in the antibacterial plate by utilizing the permanent generation characteristic of negative ions generated by the tourmaline, the formation of the negative ions can form a good promotion effect on an inorganic antibacterial system, and the electron hole conversion efficiency of titanium dioxide is improved, further, the essence of the inorganic composite antibacterial system formed by titanium dioxide and silver particles is changed in the performance of the particles, when the material of the negative ion powder acts on the antibacterial system, the negative ions can form an effect on the titanium dioxide, so that the performance of the whole antibacterial system is improved; b1, adding tourmaline powder into a ball mill, adding ethanol for low-temperature ball milling and crushing, and filtering to obtain crushed tourmaline powder; the mass ratio of the tourmaline powder to the ethanol is 5:1-2, the low-temperature ball milling temperature is 10-20 ℃, and the pressure is 3-5 MPa; ball-milling the crushed tourmaline powder to a micro-nano level; b2, adding n-butyl titanate into ether, uniformly stirring to form titanium-ether liquid, then adding the crushed tourmaline powder into the titanium-ether liquid, performing low-temperature ultrasonic dispersion, and filtering to obtain coated tourmaline powder, wherein the concentration of the n-butyl titanate in the ether is 30-70g/L, the stirring speed is 100-200r/min, the low-temperature ultrasonic temperature is 5-10 ℃, the ultrasonic frequency is 80-100kHz, and the filtering temperature is 50-60 ℃; b3, standing the coated tourmaline powder at constant temperature for 2-4h, and blowing at constant temperature to obtain prefabricated anion powder; the standing environment is mixed gas of water vapor, ethanol vapor and nitrogen, the volume ratio of the water vapor to the ethanol vapor to the nitrogen is 2:1:5-8, the temperature is 100-; b4, irradiating the prepared negative ion powder at constant temperature of 80-100 deg.C and surface illumination intensity of 30-50mW/cm for 20-50min to obtain negative oxygen ion powder2. Using titanium dioxide as a wrapping agent to form a stable wrapping systemTourmaline powder is coated on the inner core layer, and electrons generated by the tourmaline powder can be quickly transferred by the conductive property and the surface activity of titanium dioxide, so that negative ion particles taking titanium dioxide as a frame are formed, the surface of negative ion powder is greatly increased, and meanwhile, the negative oxygen ion powder of the frame structure and the inorganic system antibacterial agent form a stable connection effect.
The preparation method comprises the following steps:
uniformly mixing resin, an antioxidant, a medium-temperature curing agent, BHT (butylated hydroxytoluene), a dispersing agent, PE (polyethylene) powder, PBQ (Poly-p-phenylene benzobisoxazole), color paste, magnesium oxide, zinc stearate, aluminum hydroxide, calcium carbonate, an antibacterial agent and negative oxygen ion powder to obtain a mixture;
and spreading glass fiber cloth in a mold, spreading the mixture and the glass fiber in the mold in a layered overlapping manner, and finally performing light curing to obtain the GFK antibacterial board.
From the above description, it can be seen that the present invention has the following advantages:
1. the invention solves the problem of poor antibacterial performance of the existing building material, utilizes the negative oxygen ion powder and the antibacterial agent to form a composite antibacterial system, and utilizes the active system of the negative oxygen ions to be matched with the antibacterial system of the inorganic material to form the synergistic effect among electrons, thereby achieving the effect of high-efficiency antibacterial.
2. The invention utilizes aluminum hydroxide, magnesium oxide and calcium carbonate as inorganic fillers to form an inorganic flame retardant effect, and simultaneously forms a functional filler by the inorganic characteristics of the antibacterial agent and the negative oxygen ion powder, thereby achieving a light-weight and high-strength filler system.
Detailed Description
The present invention will be described in detail with reference to examples, but the present invention is not limited to the claims.
Example 1
A preparation method of a GFK antibacterial plate comprises the following steps of: 10 parts of resin, 0.3 part of antioxidant, 0.2 part of medium-temperature curing agent, 0.3 part of BHT, 0.02 part of dispersant, 0.1 part of PE powder, 0.05 part of PBQ, 0.07 part of color paste, 0.04 part of magnesium oxide, 0.65 part of zinc stearate, 60 parts of aluminum hydroxide, 5 parts of calcium carbonate, 0.5 part of antibacterial agent, 0.5 part of negative oxygen ion powder, 10 parts of glass fiber and 0.5 part of glass fiber cloth.
The resin is made of PVC material.
The antioxidant is antioxidant 626.
The medium-temperature curing agent is a UV curing agent which is a polyurethane acrylate prepolymer, the UV curing agent contains epoxy resin, and the mass ratio of the epoxy resin to the UV curing agent is 4: 1.
The dispersing agent adopts polyethylene glycol.
The antibacterial agent adopts a siloxy silver ion antibacterial agent, has good transparency, and does not influence the color and the transparency of the plastic when being added into the plastic; the preparation method of the siloxy silver ion antibacterial agent comprises the following steps: 1, adding tetrabutyl titanate into glacial acetic acid, and stirring until the tetrabutyl titanate is completely dispersed to form a titanium-acetic acid solution, wherein the concentration of the tetrabutyl titanate in the glacial acetic acid is 100g/L, and the stirring speed is 1000 r/min; a2, slowly adding silver acetate into the solution until excessive silver acetate forms a precipitate, filtering and airing to obtain a plating film crystal; the adding amount of the silver acetate is 30% of the mass of the n-butyl titanate, the slow adding speed in each liter of glacial acetic acid is 4g/min, and the airing temperature is 400 ℃; a3, adding ethyl silicate into ether to form a silicon ether solution; then spraying the solution on the surface of the coated crystal at constant temperature to form a secondary coated crystal; the concentration of ethyl silicate in anhydrous ether is 30g/L, the spraying speed of constant temperature spraying is 0.5mL/min, and the spraying amount is 1mL/cm2At a temperature of 50 ℃; a4, standing the secondary film coating crystal in a reaction kettle, introducing mixed gas containing water vapor for treatment for 30min, and purging to obtain a prefabricated antibacterial agent, wherein the standing temperature is 100 ℃, the mixed gas is the mixed gas of the water vapor and the nitrogen, the volume ratio of the water vapor is 6%, the treatment temperature of the mixed gas is 100 ℃, dry nitrogen is adopted for purging, and the temperature is 90 ℃; a5, reducing for 1h by hydrogen of the preformed antibacterial agent to obtain the antibacterial agent, wherein the reduction temperature is 80 ℃.
The negative oxygen ion powder adopts tourmaline-based negative ion powder, and is pretreated before use, and the pretreatment comprises the following steps,b1, adding tourmaline powder into a ball mill, adding ethanol for low-temperature ball milling and crushing, and filtering to obtain crushed tourmaline powder; the mass ratio of the tourmaline powder to the ethanol is 5:1, the low-temperature ball milling temperature is 10 ℃, and the pressure is 3 MPa; ball-milling the crushed tourmaline powder to a micro-nano level; b2, adding n-butyl titanate into ether, uniformly stirring to form titanium-ether liquid, then adding the crushed tourmaline powder into the titanium-ether liquid, performing low-temperature ultrasonic dispersion, and filtering to obtain coated tourmaline powder, wherein the concentration of the n-butyl titanate in the ether is 30g/L, the stirring speed is 100r/min, the low-temperature ultrasonic temperature is 5 ℃, the ultrasonic frequency is 80kHz, and the filtering temperature is 50 ℃; b3, standing the coated tourmaline powder at constant temperature for 2h, and blowing at constant temperature to obtain prefabricated anion powder; the standing environment is mixed gas of water vapor, ethanol vapor and nitrogen, the volume ratio of the water vapor to the ethanol vapor to the nitrogen is 2:1:5, the temperature is 100 ℃, the constant-temperature blowing gas is nitrogen, the temperature is 100 ℃, and the blowing speed is 5 mL/min; b4, performing constant temperature illumination on the prefabricated negative ion powder for 20min to obtain negative oxygen ion powder, wherein the constant temperature illumination temperature is 80 ℃, and the surface illumination intensity is 30mW/cm2。
The preparation method of the GFK antibacterial plate comprises the following steps:
uniformly mixing resin, an antioxidant, a medium-temperature curing agent, BHT (butylated hydroxytoluene), a dispersing agent, PE (polyethylene) powder, PBQ (Poly-p-phenylene benzobisoxazole), color paste, magnesium oxide, zinc stearate, aluminum hydroxide, calcium carbonate, an antibacterial agent and negative oxygen ion powder to obtain a mixture;
and spreading glass fiber cloth in a mold, spreading the mixture and the glass fiber in the mold in a layered overlapping manner, and finally performing light curing to obtain the GFK antibacterial board.
Example 2
A preparation method of a GFK antibacterial plate comprises the following steps of: 14 parts of resin, 0.5 part of antioxidant, 0.4 part of medium-temperature curing agent, 0.5 part of BHT, 0.05 part of dispersant, 0.3 part of PE powder, 0.08 part of PBQ, 0.09 part of color paste, 0.07 part of magnesium oxide, 1.15 parts of zinc stearate, 70 parts of aluminum hydroxide, 6 parts of calcium carbonate, 1.2 parts of antibacterial agent, 1.2 parts of negative oxygen ion powder, 20 parts of glass fiber and 0.7 part of glass fiber cloth.
The resin adopts PP powder.
The antioxidant is antioxidant 626.
The medium-temperature curing agent is a UV curing agent which is a polyurethane acrylate prepolymer, the UV curing agent contains epoxy resin, and the mass ratio of the epoxy resin to the UV curing agent is 4: 1.
The dispersing agent adopts polyethylene glycol.
The antibacterial agent adopts a siloxy silver ion antibacterial agent, and the preparation method of the siloxy silver ion antibacterial agent comprises the following steps: a1, adding n-butyl titanate into glacial acetic acid, and stirring until the n-butyl titanate is completely dispersed to form a titanium-acetic acid dissolved solution, wherein the concentration of the n-butyl titanate in the glacial acetic acid is 200g/L, and the stirring speed is 2000 r/min; a2, slowly adding silver acetate into the solution until excessive silver acetate forms a precipitate, filtering and airing to obtain a plating film crystal; the adding amount of the silver acetate is 70% of the mass of the n-butyl titanate, the slow adding speed in each liter of glacial acetic acid is 5g/min, and the airing temperature is 60 ℃; a3, adding ethyl silicate into ether to form a silicon ether solution; then spraying the solution on the surface of the coated crystal at constant temperature to form a secondary coated crystal; the concentration of ethyl silicate in anhydrous ether is 60g/L, the spraying speed of constant temperature spraying is 0.9mL/min, and the spraying amount is 2mL/cm2The temperature is 70 ℃; a4, standing the secondary film coating crystal in a reaction kettle, introducing mixed gas containing water vapor for treatment for 50min, and purging to obtain a prefabricated antibacterial agent, wherein the standing temperature is 110 ℃, the mixed gas is the mixed gas of the water vapor and the nitrogen, the volume ratio of the water vapor is 10%, the treatment temperature of the mixed gas is 110 ℃, dry nitrogen is adopted for purging, and the temperature is 100 ℃; a5, reducing for 2 hours by hydrogen of the preformed antibacterial agent to obtain the antibacterial agent, wherein the reduction temperature is 100 ℃.
B1, adding tourmaline powder into a ball mill, adding ethanol for low-temperature ball milling and crushing, and filtering to obtain crushed tourmaline powder; the mass ratio of the tourmaline powder to the ethanol is 5:2, and the low-temperature ball milling temperatureAt 20 ℃ and a pressure of 5 MPa; ball-milling the crushed tourmaline powder to a micro-nano level; b2, adding n-butyl titanate into ether, uniformly stirring to form titanium-ether liquid, then adding the crushed tourmaline powder into the titanium-ether liquid, performing low-temperature ultrasonic dispersion, and filtering to obtain coated tourmaline powder, wherein the concentration of the n-butyl titanate in the ether is 70g/L, the stirring speed is 200r/min, the low-temperature ultrasonic temperature is 10 ℃, the ultrasonic frequency is 100kHz, and the filtering temperature is 60 ℃; b3, standing the coated tourmaline powder at constant temperature for 4 hours, and blowing at constant temperature to obtain prefabricated anion powder; the standing environment is mixed gas of water vapor, ethanol vapor and nitrogen, the volume ratio of the water vapor to the ethanol vapor to the nitrogen is 2:1:8, the temperature is 120 ℃, the constant-temperature blowing gas is nitrogen, the temperature is 100 ℃, and the blowing speed is 10 mL/min; b4, performing constant temperature illumination on the prefabricated negative ion powder for 50min to obtain negative oxygen ion powder, wherein the constant temperature illumination temperature is 100 ℃, and the surface illumination intensity is 50mW/cm2。
The preparation method comprises the following steps:
uniformly mixing resin, an antioxidant, a medium-temperature curing agent, BHT (butylated hydroxytoluene), a dispersing agent, PE (polyethylene) powder, PBQ (Poly-p-phenylene benzobisoxazole), color paste, magnesium oxide, zinc stearate, aluminum hydroxide, calcium carbonate, an antibacterial agent and negative oxygen ion powder to obtain a mixture;
and spreading glass fiber cloth in a mold, spreading the mixture and the glass fiber in the mold in a layered overlapping manner, and finally performing light curing to obtain the GFK antibacterial board.
Example 3
A preparation method of a GFK antibacterial plate comprises the following steps of:
11.5 parts of resin, 0.49 part of antioxidant, 0.29 part of medium-temperature curing agent, 0.39 part of BHT, 0.04 part of dispersant, 0.2 part of PE powder, 0.06 part of PBQ, 0.08 part of color paste, 0.05 part of magnesium oxide, 0.98 part of zinc stearate, 63.34 parts of aluminum hydroxide, 5.89 parts of calcium carbonate, 0.98 part of antibacterial agent, 0.98 part of negative oxygen ion powder, 14.13 parts of glass fiber and 0.6 part of glass fiber cloth.
The resin adopts PP powder.
The antioxidant is antioxidant 626.
The medium-temperature curing agent is a UV curing agent which is a polyurethane acrylate prepolymer, the UV curing agent contains epoxy resin, and the mass ratio of the epoxy resin to the UV curing agent is 4: 1.
The dispersing agent adopts polyethylene glycol.
The antibacterial agent is a silver siloxy silver ion antibacterial agent; the preparation method of the siloxy silver ion antibacterial agent comprises the following steps: a1, adding n-butyl titanate into glacial acetic acid, and stirring until the n-butyl titanate is completely dispersed to form a titanium-acetic acid dissolved solution, wherein the concentration of the n-butyl titanate in the glacial acetic acid is 150g/L, and the stirring speed is 1500 r/min; a2, slowly adding silver acetate into the solution until excessive silver acetate forms a precipitate, filtering and airing to obtain a plating film crystal; the adding amount of the silver acetate is 50% of the mass of the n-butyl titanate, the slow adding speed in each liter of glacial acetic acid is 5g/min, and the airing temperature is 50 ℃; a3, adding ethyl silicate into ether to form a silicon ether solution; then spraying the solution on the surface of the coated crystal at constant temperature to form a secondary coated crystal; the concentration of ethyl silicate in anhydrous ether is 40g/L, the spraying speed of constant temperature spraying is 0.7mL/min, and the spraying amount is 2mL/cm2The temperature is 60 ℃; 4, standing the secondary film plating crystal in a reaction kettle, introducing mixed gas containing water vapor for treatment for 40min, and purging to obtain a prefabricated antibacterial agent, wherein the standing temperature is 105 ℃, the mixed gas is mixed gas of water vapor and nitrogen, the volume ratio of the water vapor is 8%, the treatment temperature of the mixed gas is 105 ℃, dry nitrogen is adopted for purging, and the temperature is 95 ℃; a5, reducing by preformed antimicrobial hydrogen for 1.5h to obtain the antimicrobial, wherein the reduction temperature is 90 ℃.
B1, adding tourmaline powder into a ball mill, adding ethanol for low-temperature ball milling and crushing, and filtering to obtain crushed tourmaline powder; the mass ratio of the tourmaline powder to the ethanol is 5:2, the low-temperature ball milling temperature is 15 ℃, and the pressure is 3-5 MPa; ball milling the crushed tourmaline powder to a micro-nano level; b2, adding tetrabutyl titanate into ether, and stirring uniformly to form titanium-ether liquidAdding the crushed tourmaline powder into titanium-ether liquid for low-temperature ultrasonic dispersion, and filtering to obtain coated tourmaline powder, wherein the concentration of n-butyl titanate in ether is 50g/L, the stirring speed is 150r/min, the low-temperature ultrasonic temperature is 8 ℃, the ultrasonic frequency is 90kHz, and the filtering temperature is 55 ℃; b3, standing the coated tourmaline powder for 3 hours at constant temperature, and blowing at constant temperature to obtain prefabricated anion powder; the standing environment is mixed gas of water vapor, ethanol vapor and nitrogen, the volume ratio of the water vapor to the ethanol vapor to the nitrogen is 2:1:7, the temperature is 120 ℃, the constant-temperature blowing gas is nitrogen, the temperature is 100 ℃, and the blowing speed is 8 mL/min; b4, performing constant temperature illumination on the prefabricated negative ion powder for 40min to obtain negative oxygen ion powder, wherein the constant temperature illumination temperature is 90 ℃, and the surface illumination intensity is 40mW/cm2。
The preparation method comprises the following steps:
uniformly mixing resin, an antioxidant, a medium-temperature curing agent, BHT (butylated hydroxytoluene), a dispersing agent, PE (polyethylene) powder, PBQ (Poly-p-phenylene benzobisoxazole), color paste, magnesium oxide, zinc stearate, aluminum hydroxide, calcium carbonate, an antibacterial agent and negative oxygen ion powder to obtain a mixture;
and spreading glass fiber cloth in a mold, spreading the mixture and the glass fiber in the mold in a layered overlapping manner, and finally performing light curing to obtain the GFK antibacterial board.
Performance detection
Taking example 1, example 2 and example 3 as detection examples, the following detections were carried out:
1. and (3) antibacterial and mildewproof detection: the GFK antibacterial plate prepared in the embodiment 1-3 contains silver ions, bacteria can be effectively killed, and meanwhile, the nanometer titanium dioxide and the silver particles form a synergistic effect, so that the bacterial sterilization effect and the bacterial sterilization efficiency are effectively improved. Tests show that the antibacterial and antifungal rates of examples 1-3 reach 99.93%, and the mildew is caused by moisture or dirt. The GFK plate is detected to have the water absorption rate of not higher than 0.013%, no humid condition exists, and the surface of the GFK plate is smooth, compact and high in degree and does not agglomerate dirt. Therefore, the effective mildew-proof effect is achieved, and the mildew-proof grade is grade 1 through various tests of 'Aspergillus niger ATTCC9642, green plum rope ATCC11797, Chaetomium globosum ATCC6205 and green gliocladium virens ATCC 9645' detected by the national authorization detection center.
2. The mechanical strength is good. The GFK antibacterial sheets of examples 1-3 had good mechanical properties, high elasticity, high impact strength, very good static values at large amplitudes, and a small linear coefficient of thermal expansion. Through DIN EN 356 test, the impact strength can reach 55 KJ/square meter, the bending strength is 65Mpa, and the shrinkage rate is 0.03%.
3. The fire resistance is good. The GFK antibacterial plates of the embodiments 1-3 are detected by the national fireproof building material quality supervision and detection center, and the burning value increase rate index is less than or equal to 50; the total heat value of combustion is less than or equal to 2.7; the smoke generation rate index is less than or equal to 10, no combustion falling object exists, and the fire-proof grade reaches A grade and A2 grade.
4. Is green and environment-friendly. The GFK antibacterial sheets of examples 1-3 reached a solid level of 99.9% without causing volatilization of harmful substances. By the national authorized detection center, referring to USEPA 3052: 1996 digestion method and quantification by LCP measurement. (LUSEPA6010C:2007) detection of lead, cadmium and mercury, see USEPA 3540: 1996, sample handling. GC-MS measurement (LUSEPA8270D:2007) for polybrominated biphenyls PBBS). The ten items of Polybrominated Biphenyls (PBOES) are far higher than the national safety standard. GC-MS measurement (LUSEPA8270D:2007) detects ten polybrominated biphenyls (PBBS). The tens items of Polybiphenyl (PBOES) are far higher than the national safety standard.
It should be understood that the detailed description of the invention is merely illustrative of the invention and is not intended to limit the invention to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (5)
1. A preparation method of a GFK antibacterial plate is characterized by comprising the following steps: the mass ratio is as follows: 10 to 14 portions of resin, 0.3 to 0.5 portion of antioxidant, 0.2 to 0.4 portion of medium temperature curing agent, 0.3 to 0.5 portion of BHT, 0.02 to 0.05 portion of dispersant, 0.1 to 0.3 portion of PE powder, 0.05 to 0.08 portion of PBQ, 0.07 to 0.09 portion of color paste, 0.04 to 0.07 portion of magnesium oxide, 0.65 to 1.15 portions of zinc stearate, 60 to 70 portions of aluminum hydroxide, 5 to 6 portions of calcium carbonate, 0.5 to 1.2 portions of antibacterial agent, 0.5 to 1.2 portions of negative oxygen ion powder, 10 to 20 portions of glass fiber and 0.5 to 0.7 portion of glass fiber cloth;
the antioxidant adopts antioxidant 168 or antioxidant 626;
the medium-temperature curing agent adopts a UV curing agent, and the UV curing agent is a polyurethane acrylate prepolymer;
the UV curing agent contains epoxy resin, and the mass ratio of the epoxy resin to the UV curing agent is 4: 1;
the antibacterial agent is a siloxy silver ion antibacterial agent.
2. The method for producing a GFK antimicrobial sheet according to claim 1, wherein: the GFK antibacterial plate comprises the following components in percentage by mass: 11.5 parts of resin, 0.49 part of antioxidant, 0.29 part of medium-temperature curing agent, 0.39 part of BHT, 0.04 part of dispersant, 0.2 part of PE powder, 0.06 part of PBQ, 0.08 part of color paste, 0.05 part of magnesium oxide, 0.98 part of zinc stearate, 63.34 parts of aluminum hydroxide, 5.89 parts of calcium carbonate, 0.98 part of antibacterial agent, 0.98 part of negative oxygen ion powder, 14.13 parts of glass fiber and 0.6 part of glass fiber cloth.
3. The method for producing a GFK antimicrobial sheet according to claim 1, wherein: the resin is made of PP or PVC material.
4. The method for producing a GFK antimicrobial sheet according to claim 1, wherein: the dispersing agent adopts polyethylene glycol.
5. The method for producing a GFK antimicrobial sheet according to claim 1, wherein: the preparation method comprises the following steps:
uniformly mixing resin, an antioxidant, a medium-temperature curing agent, BHT (butylated hydroxytoluene), a dispersing agent, PE (polyethylene) powder, PBQ (Poly-p-phenylene benzobisoxazole), color paste, magnesium oxide, zinc stearate, aluminum hydroxide, calcium carbonate, an antibacterial agent and negative oxygen ion powder to obtain a mixture;
and spreading glass fiber cloth in a mold, spreading the mixture and the glass fiber in the mold in a layered overlapping manner, and finally performing light curing to obtain the GFK antibacterial board.
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| US20200154714A1 (en) * | 2018-11-20 | 2020-05-21 | Canine Professional Services, Inc. | Anti microbial panels |
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| CN107057280A (en) * | 2016-12-26 | 2017-08-18 | 东莞市佳乾新材料科技有限公司 | A kind of composition epoxy resin and its manufacture method with antibacterial functions |
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Denomination of invention: A Preparation Method of GFK Antibacterial Plate Effective date of registration: 20230901 Granted publication date: 20220603 Pledgee: Luoshe sub branch of Zhejiang Deqing Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang Aobang Technology Co.,Ltd. Registration number: Y2023980054983 |