CN109810526A - A kind of toilet lid and its manufacturing process containing rice husk and wood powder - Google Patents
A kind of toilet lid and its manufacturing process containing rice husk and wood powder Download PDFInfo
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- CN109810526A CN109810526A CN201910024234.2A CN201910024234A CN109810526A CN 109810526 A CN109810526 A CN 109810526A CN 201910024234 A CN201910024234 A CN 201910024234A CN 109810526 A CN109810526 A CN 109810526A
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Abstract
The present invention relates to toilet lid technical fields, and in particular to a kind of toilet lid and its manufacturing process containing rice husk and wood powder.The toilet lid is made up of mixture of hot pressing, and the mixture includes the raw material of following parts by weight: 30-70 parts of rice husk, 30-70 parts of wood powder and 10-20 parts of urea formaldehyde glue.Toilet lid of the present invention containing rice husk and wood powder is hot-forming using rice husk and wood powder mixing, and wood materials are consolidated into bonding hot pressing using glue, make toilet lid obtained that there is preferable hardness, impact resistance, processing performance and durability, and the recyclable reprocessing of wood materials used utilizes, improve the recycling rate of waterused of material, it is environmentally protective, it is environmentally friendly, with preferable waterproof, it is impermeable, the volatilization of low-methoxyl aldehyde, antibacterial and mouldproof, anti-corrosive properties, chemical resistance and stability, surface gloss is high, smooth not coarse not abraded skin, practicability is high, long service life.
Description
Technical field
The present invention relates to toilet lid technical fields, and in particular to a kind of toilet lid and its manufacture work containing rice husk and wood powder
Skill.
Background technique
Nowadays in life, the closestool in bathroom can be convenient for handicapped people due to its go to the toilet convenience and aesthetics
Group (pregnant woman, the elderly, four limbs inconvenience crowd etc.), gradually replaces traditional crouching formula lavatory, using extensive.
And current closestool, mostly use plastics to manufacture, but the toilet lid of plastics manufacture has difficult, pollution environment of degradation etc. and asks
Topic；In this regard, gradually appear wood plastic composite on the market, with wood materials (such as sawdust, wood shavings, bamboo scraps, wheat straw cavings, coconut husk,
Bagasse, peanut shell, hemp etc.) it is main material, plastics (such as PE, PP, PVC, PS and ABS) is added in wood materials and is mixed,
Composite material is prepared, but the plastic components such as plastics being added can reduce the processing performance, mechanical property and durability of composite material.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide one kind to contain rice husk and wood
The toilet lid of powder, the toilet lid is hot-forming using rice husk and wood powder mixing, and wood materials are consolidated adhesion heat using glue
Pressure makes toilet lid obtained have preferable hardness, impact resistance, processing performance and durability, and the wood materials used can
Recycling reprocessing utilizes, and improves the recycling rate of waterused of material, environmentally protective, environmentally friendly.
Another object of the present invention is to provide a kind of manufacturing process of toilet lid containing rice husk and wood powder, the manufacturing process
Easy to operate, easy to control, high production efficiency, production cost is low, can be used for being mass produced, and by repeatedly screening, screens
To the lesser screenings particle of partial size, the mixing dispersibility of raising toilet lid powder and hot-forming stability；And by heat
Toilet lid after pressure is polished and is painted, and the smooth property and waterproof, seepage control permeability of closestool cap surface can be improved, and improves horse
The durability of bung, prolongs its service life.
The purpose of the invention is achieved by the following technical solution: a kind of toilet lid containing rice husk and wood powder, the toilet lid by
Mixture is made up of hot pressing, and the mixture includes the raw material of following parts by weight:
30-70 parts of rice husk
30-70 parts of wood powder
10-20 parts of urea formaldehyde glue.
Toilet lid of the invention is standby by using rice husk and wood powder mixing hot pressing, and utilizes urea formaldehyde glue by wood materials
Firm bonding hot pressing, makes toilet lid obtained have preferable hardness, impact resistance, processing performance and durability, and use
The recyclable reprocessing of wood materials utilizes, and improves the recycling rate of waterused of material, environmentally protective, environmentally friendly.
Preferably, the urea formaldehyde glue includes the raw material of following parts by weight:
Urea formaldehyde glue of the invention is prepared by using the raw material of mentioned kind, and stock dispersion is uniform, fully reacting, is made
Urea formaldehyde glue caking property with higher, rice husk and wood powder can be uniformly dispersed, stabilization be adhesively fixed, improve the strong of toilet lid
Degree, hardness, impact resistance, thermo-formability, processing performance and bonding stability etc., convergent force is small, does not crack.
Preferably, the urea formaldehyde glue is made by following steps:
Step A: according to parts by weight, formaldehyde being added into reaction vessel, is warming up at 35-40 DEG C, volume content is added
It is 8.2-8.8 for the sodium hydroxide adjusting pH value of 25-30%, melamine is then added while stirring and accounts for the total dosage of urea
The urea of 25-30% is warming up to 82-85 DEG C in whipping process in 40-50min, insulation reaction 30-40min after addition,
It is cooled to 50-60 DEG C again, material A is made；
Step B: it is 5.2-6.2 that ammonium chloride is added into material A made from step A and adjusts pH value, is kept the temperature at 80-90 DEG C
Material B is made in 30-40min；
Step C: the urea for accounting for the total dosage 15-20% of urea is added into material B made from step B, is kept the temperature at 80-90 DEG C
Material C is made in 8-12min；
Step D: polyvinyl alcohol and remaining urea are added into material C made from step C, stirs 25- at 83-85 DEG C
Then 30min keeps the temperature 10-15min, cool to 40 DEG C hereinafter, urea formaldehyde glue is made.
The present invention prepares urea formaldehyde glue by using above-mentioned steps, easy to operate, easy to control, high production efficiency, production
At low cost, urea formaldehyde glue quality obtained is stablized, and adhesiveness is high, is applicable to be mass produced；And by the way that first formaldehyde heats up,
Promote the subsequent dispersion with melamine and react, and be 8.2-8.8 by adjusting pH value in reaction, so that melamine and urea
Under alkaline environment with the abundant polymerization reaction of formaldehyde, and when by the control dosage of urea, whipping temp time and holding temperature
Between, the haptoreaction of melamine and urea and formaldehyde can be improved, abundant polymerization reaction accelerates the process of polymerization reaction, promotes
Generate stable colloid, adjusting pH value to 5.2-6.2 using ammonium chloride thereafter, and urea is added portionwise, can improve urea with
The polymerization reaction process of formaldehyde, melamine, polyvinyl alcohol improves the polymerization stability and adhesive property of urea formaldehyde glue obtained
Deng, and then urea formaldehyde glue is effectively improved to the adhesion stability of rice husk, wood powder.
Another object of the present invention is achieved through the following technical solutions: toilet lid of the one kind as described above containing rice husk and wood powder
Manufacturing process includes the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, sieved again
Screenings after screening twice is collected, obtains mixed powder by choosing；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) it mixes glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring
It is added, obtains mixture after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through
Three-level Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains horse
Bung first product；
(6) polishing spray painting: toilet lid first product of the step (5) after hot-forming is polished, then paints, then makes
Obtain toilet lid finished product.
The present invention prepares toilet lid by using above-mentioned steps, and preparation step is easy to operate, easy to control, production efficiency
Height, production cost is low, can be used for being mass produced；By repeatedly screening, screening obtains the lesser screenings particle of partial size, improves
The mixing dispersibility of toilet lid powder and hot-forming stability；Then powder is dried, improves the dispersibility of powder, keeps away
Exempt from moist powder and cause the phenomenon that reuniting, influence the mixing dispersibility of powder and urea formaldehyde glue, and avoids the high-moisture of powder
Cause to occur after toilet lid use steam, bubble, it is mouldy phenomena such as.
And three level screen is carried out after mixed glue, the material after mixed glue can be screened three times, the grain after selecting mixed glue, smashing
The lesser material particles of diameter make material in subsequent hot-forming middle consolidation pressing, avoid due to large granular materials and little particle
Gap is caused between material, reduces the intensity, impact resistance and stability of toilet lid.And by being carried out to the toilet lid after hot pressing
Polishing and spray painting, can improve the smooth property and waterproof, seepage control permeability of closestool cap surface, improve the durability of toilet lid, extend
Its service life.
Preferably, in the step (1), the sub-sieve mesh number for mixing screening is 20-400 mesh；In the step (3), stirring
Revolving speed be 2500-2800rpm；In the step (4), the sub-sieve mesh number of three level screen is 20-300 mesh.
Mesh number of the present invention by strict control mixing screening and three level screen, the screenings particle that screening can be made to obtain
Diameter is smaller, promotes the dispersibility between each material, and can improve the mixing dispersion degree of urea formaldehyde glue Yu small particle material particles, shape
At the mixed glue material of uniform particle diameter, keep toilet lid green body hot pressing obtained uniform, quality is stablized, and avoids because of grain diameter size not
One and cause to form gap between large granular materials and small particles material, and reduce the intensity, impact resistance and stabilization of toilet lid
Property.And the speed of agitator of glue is mixed by strict control, the dispersibility and degree of mixing between powder and glue can be improved, after hot pressing
Form the toilet lid that material is uniformly dispersed, quality is stable.
Preferably, in the step (5), hot-forming temperature is 80-150 DEG C, and pressure is 15-20 tons, and the time is
250-500s。
The present invention by strict control hot-forming temperature, pressure and time, can by the material pressing and forming after mixed glue,
Make toilet lid obtained that there is preferable intensity, impact resistance, stability, processing performance and durability, convergent force is small, does not open
It splits, is not easy to be pressurized impaired, long service life.
Preferably, in the step (6), the spray pressure of the spray painting is 8-12bar, and the spray painting uses surface protection
Paint, the surface protection enamel-cover include the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 2-4:1.
The present invention prepares surface protection paint by using the material of mentioned kind, can be to closestool hot-forming, after polishing
Lid green body carries out surface protection, improves waterproof, impermeable, antibacterial and mouldproof, anti-corrosion, the chemical resistance, the volatilization of low-methoxyl aldehyde of toilet lid
Etc. performances, and have glossiness, surface is not smooth coarse, not frictionally damage skin, and use feeling is good.Wherein, by using 10-12
The nanometer of part ore living and 5-8 parts of active carbon powder can significantly absorb the formaldehyde gas that may be volatilized in urea formaldehyde glue, reduce
The formaldehyde odor to volatilize in glue causes the pollution of environment and the damage of human health, and widely distributed inside nanometer ore living has
Ethylmercurichlorendimide grade and nanoscale hole, and hole micropore size concentrates on 0.23-0.91 nanometers, can actively adsorb may in urea formaldehyde glue
The toxic and harmful gas such as formaldehyde, benzene, ammonia, the TVOC of volatilization, and it is without secondary pollution, it is used in mixed way with absorbent charcoal powder body, so that table
Face protective paint can absorb the formaldehyde volatile matter of toilet lid, and protective paint forms protective film, significantly reduce toilet lid and volatilize to environment
Formaldehyde volatile content.
And use modified epoxy and acrylic resin as compound resin, bonding force is strong, can significantly improve surface
Protective paint closestool cap surface adhesive force and adhesiveness, and in modified epoxy contain hydroxyl and ehter bond isopolarity group,
So that resin and adjacent interfaces molecular force are strong, chemical bond is formed, effectively improves the bonding force of surface protection paint, and have good
Good acidproof, alkaline-resisting and organic solvent-resistant performance, while no coupling product generation is reacted with curing agent, make surface protection obtained
Paint convergent force is small, is not easy to cause the impaired equal damage of the dampness of toilet lid due to cracking, so that surface protection paint plays toilet lid
Sufficient protective effect extends the service life of toilet lid.
And the dibutyl phthalate used, the plasticity of surface protection paint can be significantly improved, and xanthochromia is inclined to smaller, energy
Surface protection paint is improved to the waterproofness of toilet lid, anti-permeability, anti-corrosive properties and yellowing resistance, avoids moisture, corrosives (as clearly
The chemicals such as the toilet cleaner that clean closestool uses) it is damaged caused by toilet lid, and dibutyl phthalate and compound resin etc.
Other materials compatibilities are good, can significantly improve the material dispersion of surface protection paint.
And the curing agent used can promote curing efficiency of the surface protection paint in toilet lid, so that surface protection paint is in horse
It is fast curing-formed on bung, stable protective film is formed, waterproofness, anti-permeability, the anti-corrosive properties, color inhibition of toilet lid are improved
The performances such as property and thermal stability, extend the service life of toilet lid.
And the antibacterial agent used can effectively improve the antibiotic property of surface protection paint, and then improve the antibacterial action of toilet lid,
It avoids bacterium or germ from being attached to closestool cap surface and generates growth, the significant toilet lid of energy uses wholesomeness；And use at
Film can effectively improve surface protection paint in the film forming of closestool cap surface, form surface protection paint and stablize, uniformly protect
Film improves the performances such as waterproofness, anti-permeability, anti-corrosive properties, yellowing resistance and the thermal stability of toilet lid, extends making for toilet lid
Use the service life；And the catalyst used can improve reacting to each other between each raw material, generate chemical crosslink reaction, formed it is stable,
The surface protection paint of space network；And the solvent used can promote compatibility and solubility between each raw material, make each original
Material is uniformly dispersed, sufficiently reacts.
Preferably, every part of modified epoxy is made by following steps:
50-60 parts of epoxy resin are warming up to 45-55 DEG C, nitrogen protection is led in stirring, and 12-16 parts are added while stirring and gathers
Then propylene glycol diglycidylether and 15-18 parts of carboxyl end group propylene glycol polyethers continue to stir 15-30min at 75-90 DEG C,
It is eventually adding 50-60 parts of polyethylene glycol, stirs 20-30min at 80-90 DEG C, modified epoxy is made.
The present invention is by changing epoxy resin using polypropylene glycol diglycidyl ether and carboxyl end group propylene glycol polyethers
Property toughening, improve the toughness and impact resistance of epoxy resin, and be added polyethylene glycol improve system dispersibility and stability, mention
The stability of high surface protection paint is not easy chemical attack or temperature distortion, and then improves the toughness and shock resistance of surface protection paint
Property, quality that is impaired and influencing toilet lid not easy to crack.
Preferably, the partial size of nanometer ore living is 120-300nm；The partial size of the active carbon powder is 200-
400nm；The mixture that the curing agent is made of isocyanates and poly- azelaic acid acid anhydride with weight ratio for 1.6-2.4:1；It is described
The mixture that antibacterial agent is made of chitosan and calcium phosphate zinc-aluminium complex salt with weight ratio for 2.5-3.5:1.2-1.8.
The present invention, can be with other objects of surface protection paint by the partial size of strict control nanometer ore and active carbon powder living
Material mixes uniformly, avoids partial size larger and surface protection paint is caused to generate harsh hand, improve surface protection paint to closestool
The protective effect and smooth and beautiful appearance of lid.
And curing agent made of being compounded by using mentioned kind, solidification effect of the surface protection paint in toilet lid can be promoted
Rate forms stable protective film so that surface protection paint is fast curing-formed in toilet lid, improve toilet lid waterproofness,
The performances such as anti-permeability, anti-corrosive properties, yellowing resistance and thermal stability extend the service life of toilet lid；Wherein, isocyanates with
The compatibility of compound resin is good, and is used in combination with poly- azelaic acid acid anhydride, can shorten protective paint drying time simultaneously, improve
Elongation at break, toughness, intensity and the shock resistance of protective paint avoid protective paint from generating cracking phenomena and reduce to toilet lid
Protective effect.
And antibacterial agent made of being compounded by using mentioned kind, the antibiotic property of surface protection paint can be effectively improved, in turn
The antibacterial action for improving toilet lid, avoids bacterium or germ from being attached to closestool cap surface and generates growth, the significant toilet lid of energy
Use wholesomeness；Wherein, the chitosan category natural antibacterial agent of use, does not generate pollution and harm to human body and environment, improves
The safety that surface protection paint is contacted with human skin, does not damage human skin；The calcium phosphate zinc-aluminium complex salt of use
Belong to metal ion inorganic antiseptic, highly-safe, heat-resist, antibacterial range is wide, and validity period is long, by with protein
Sulfydryl (- SH) reaction, destroys the activity of the cell synzyme of bacterium, makes cell loss schizogamy ability and dead, and metal
Anion destroys bacterium eubolism in conjunction with bacterium, causes microorganism dead or inhibits its breeding, improves surface protection paint
Antibiotic property, and then the antibacterial action of toilet lid is improved, it is harmless.
Preferably, every part of film forming agent include 1.2-1.8 parts of hexylene glycol monobutyl ether acetates, 3-4 parts of propylene glycol monomethyl ethers,
1.5-2.5 parts of acrylic acid double cyclopentenyl oxygen ethyl esters and 0.8-1.2 parts of Lauryl Alcohol esters；The catalyst is by tin dilaurate
The mixture that dibutyl tin and the chlorination of benzyldimethyldodecylammonium base are formed with weight ratio for 2-3:1；The solvent is by the third two
Alcohol, n-butanol and cyclohexanone are with the mixture that weight ratio is that 1:1.5-2.5:2.4-3.2 is formed.
The present invention can effectively improve surface protection paint in the film forming of closestool cap surface by using the film forming agent of mentioned kind
Property, so that surface protection paint is formed stable, uniform protective film, improves waterproofness, anti-permeability, the anti-corrosive properties, resistance to Huang of toilet lid
The performances such as denaturation and thermal stability, extend the service life of toilet lid；Wherein, the acrylic acid double cyclopentenyl oxygen ethyl ester of use
Belong to active coalescing agent, at film activity height, and the hardness, resistance to bond and glossiness of surface protection paint can be improved, and to environment and
Human body is harmless, degradable；Hexylene glycol monobutyl ether acetate, propylene glycol monomethyl ether and the Lauryl Alcohol ester of use with the phase of other raw materials
Capacitive is good, with compound resin phase cross-linking reaction, forms stable, fine and close reticular membrane, improves surface protection paint to toilet lid
Protective effect.
And by using the catalyst of mentioned kind, it is mutually used in combination, can be mentioned with organic catalyst using organic catalyst
Reacting to each other between high each raw material, generates chemical crosslink reaction, forms stable, space network surface protection paint；
Wherein, the dibutyl tin dilaurate of use can effectively facilitate the progress of catalysis reaction, and can improve the lustrous surface of protective paint
Degree, toughness, intensity and impact resistance；The benzyldimethyldodecylammonium base chlorination of use is to skin-safe, with two fourth of tin dilaurate
Ji Xi is used in combination, and can remarkably promote the reaction process of system.And by using the solvent of mentioned kind, it can be by resin and its
His raw material sufficiently dissolves, and improves the dispersing uniformity and reaction adequacy of raw material.
The preparation method of the surface protection paint includes the following steps:
1., according to parts by weight, compound resin is added into solvent, is mixed evenly, be made component A；
2., according to parts by weight, by nanometer ore, active carbon powder, dibutyl phthalate and catalyst living be added to
Step 1. in component A obtained, 20-30min is stirred by ultrasonic under the conditions of frequency is 18000-22000Hz, component B is made；
3., according to parts by weight, by antibacterial agent and film forming agent be added to step 2. in component B obtained, in 1500-
Homogeneous stirs 12-15min under the conditions of 1800rpm, and component C is made；
4., according to parts by weight, in the state of component C stirring, curing agent is added while stirring, stirs 8- after addition
Surface protection paint is made in 10min.
The beneficial effects of the present invention are: toilet lid of the present invention containing rice husk and wood powder uses rice husk and wood powder mixing hot pressing
Molding, and using glue by the firm bonding hot pressing of wood materials, make toilet lid obtained have preferable hardness, impact resistance,
Processing performance and durability, and the recyclable reprocessing of wood materials used utilizes, and improves the recycling rate of waterused of material, green
Environmental protection, it is environmentally friendly, have preferable waterproof, impermeable, low-methoxyl aldehyde volatilization, antibacterial and mouldproof, anti-corrosive properties, chemical resistance and surely
Qualitative, surface gloss is high, smooth not coarse not abraded skin, and practicability is high, long service life.
The manufacturing process of toilet lid of the present invention containing rice husk and wood powder, easy to operate, easy to control, high production efficiency are raw
It produces at low cost, can be used for being mass produced, by repeatedly screening, screening obtains the lesser screenings particle of partial size, improves closestool
The mixing dispersibility of lid powder and hot-forming stability；And by the way that the toilet lid after hot pressing is polished and painted, it can mention
The smooth property and waterproof, seepage control permeability of high closestool cap surface, improve the durability of toilet lid, prolong its service life.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of toilet lid containing rice husk and wood powder, the toilet lid are made up of mixture of hot pressing, and the mixture includes
The raw material of following parts by weight:
30 parts of rice husk
30 parts of wood powder
10 parts of urea formaldehyde glue.
The urea formaldehyde glue includes the raw material of following parts by weight:
The urea formaldehyde glue is made by following steps:
Step A: according to parts by weight, formaldehyde being added into reaction vessel, is warming up at 35 DEG C, and volume content is added and is
It is 8.2 that 25% sodium hydroxide, which adjusts pH value, and melamine then is added while stirring and accounts for the urea of the total dosage 25% of urea,
82 DEG C are warming up in whipping process in 40min, insulation reaction 30min after addition, then 50 DEG C are cooled to, material A is made；
Step B: it is 5.2 that ammonium chloride is added into material A made from step A and adjusts pH value, keeps the temperature 40min at 80 DEG C,
Material B is made；
Step C: the urea for accounting for the total dosage 15% of urea being added into material B made from step B, keeps the temperature 12min at 80 DEG C,
Material C is made；
Step D: polyvinyl alcohol and remaining urea are added into material C made from step C, stirs 30min at 83 DEG C, so
After keep the temperature 10min, cool to 40 DEG C hereinafter, be made urea formaldehyde glue.
A kind of manufacturing process of the toilet lid as described above containing rice husk and wood powder, includes the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, sieved again
Screenings after screening twice is collected, obtains mixed powder by choosing；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) it mixes glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring
It is added, obtains mixture after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through
Three-level Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains horse
Bung first product；
(6) polishing spray painting: toilet lid first product of the step (5) after hot-forming is polished, then paints, then makes
Obtain toilet lid finished product.
In the step (1), the sub-sieve mesh number for mixing screening is 20 mesh；In the step (3), the revolving speed of stirring is
2500rpm；In the step (4), the sub-sieve mesh number of three level screen is 20 mesh.
In the step (5), hot-forming temperature is 80 DEG C, and pressure is 15 tons, time 500s.
In the step (6), the spray pressure of the spray painting is 8bar.
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 2:1.
Every part of modified epoxy is made by following steps:
50 parts of epoxy resin are warming up to 45 DEG C, nitrogen protection is led in stirring, and 12 parts of polypropylene glycols two are added while stirring and contract
Then water glycerin ether and 15 parts of carboxyl end group propylene glycol polyethers continue to stir 30min at 75 DEG C, are eventually adding 50 parts of poly- second two
Alcohol stirs 20min at 80 DEG C, and modified epoxy is made.
The partial size of nanometer ore living is 120nm；The partial size of the active carbon powder is 400nm；The curing agent is
The mixture being made of isocyanates and poly- azelaic acid acid anhydride with weight ratio for 1.6:1；The antibacterial agent is by chitosan and phosphoric acid
Calcium zinc-aluminium complex salt is with the mixture that weight ratio is that 2.5:1.2 is formed.
Every part of film forming agent is bicyclic including 1.2 parts of hexylene glycol monobutyl ether acetates, 3 parts of propylene glycol monomethyl ethers, 1.5 parts of acrylic acid
Pentenyl oxygen ethyl ester and 0.8 part of Lauryl Alcohol ester；The catalyst is by dibutyl tin dilaurate and benzyl dimethyl ten
Dialkyl group chlorination is with the mixture that weight ratio is that 2:1 is formed；The solvent is by propylene glycol, n-butanol and cyclohexanone with weight ratio
For the mixture of 1:1.5:2.4 composition.
The preparation method of the surface protection paint includes the following steps:
1., according to parts by weight, compound resin is added into solvent, is mixed evenly, be made component A；
2., according to parts by weight, by nanometer ore, active carbon powder, dibutyl phthalate and catalyst living be added to
Step 1. in component A obtained, 30min is stirred by ultrasonic under the conditions of frequency is 18000Hz, component B is made；
3., according to parts by weight, by antibacterial agent and film forming agent be added to step 2. in component B obtained, in 1500rpm item
Homogeneous stirs 15min under part, and component C is made；
4., according to parts by weight, in the state of component C stirring, curing agent is added while stirring, is stirred after addition
Surface protection paint is made in 8min.
Embodiment 2
A kind of toilet lid containing rice husk and wood powder, the toilet lid are made up of mixture of hot pressing, and the mixture includes
The raw material of following parts by weight:
40 parts of rice husk
40 parts of wood powder
12 parts of urea formaldehyde glue.
The urea formaldehyde glue includes the raw material of following parts by weight:
The urea formaldehyde glue is made by following steps:
Step A: according to parts by weight, formaldehyde being added into reaction vessel, is warming up at 36 DEG C, and volume content is added and is
It is 8.3 that 26% sodium hydroxide, which adjusts pH value, and melamine then is added while stirring and accounts for the urea of the total dosage 26% of urea,
83 DEG C are warming up in whipping process in 42min, insulation reaction 32min after addition, then 52 DEG C are cooled to, material A is made；
Step B: it is 5.5 that ammonium chloride is added into material A made from step A and adjusts pH value, keeps the temperature 38min at 82 DEG C,
Material B is made；
Step C: the urea for accounting for the total dosage 15-20% of urea is added into material B made from step B, is kept the temperature at 82 DEG C
Material C is made in 11min；
Step D: polyvinyl alcohol and remaining urea being added into material C made from step C, stirs 28min at 83.5 DEG C,
Then 11min is kept the temperature, is cooled to 40 DEG C hereinafter, urea formaldehyde glue is made.
A kind of manufacturing process of the toilet lid as described above containing rice husk and wood powder, includes the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, sieved again
Screenings after screening twice is collected, obtains mixed powder by choosing；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) it mixes glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring
It is added, obtains mixture after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through
Three-level Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains horse
Bung first product；
(6) polishing spray painting: toilet lid first product of the step (5) after hot-forming is polished, then paints, then makes
Obtain toilet lid finished product.
In the step (1), the sub-sieve mesh number for mixing screening is 100 mesh；In the step (3), the revolving speed of stirring is
2600rpm；In the step (4), the sub-sieve mesh number of three level screen is 90 mesh.
In the step (5), hot-forming temperature is 98 DEG C, and pressure is 18 tons, time 430s.
In the step (6), the spray pressure of the spray painting is 9bar.
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 2.5:1.
Every part of modified epoxy is made by following steps:
52 parts of epoxy resin are warming up to 48 DEG C, nitrogen protection is led in stirring, and 13 parts of polypropylene glycols two are added while stirring and contract
Then water glycerin ether and 16 parts of carboxyl end group propylene glycol polyethers continue to stir 26min at 78 DEG C, are eventually adding 52 parts of poly- second two
Alcohol stirs 28min at 82 DEG C, and modified epoxy is made.
The partial size of nanometer ore living is 165nm；The partial size of the active carbon powder is 350nm；The curing agent is
The mixture being made of isocyanates and poly- azelaic acid acid anhydride with weight ratio for 1.8:1；The antibacterial agent is by chitosan and phosphoric acid
Calcium zinc-aluminium complex salt is with the mixture that weight ratio is that 2.8:1.4 is formed.
Every part of film forming agent includes 1.4 parts of hexylene glycol monobutyl ether acetates, 3.2 parts of propylene glycol monomethyl ethers, 1.8 parts of acrylic acid pair
Cyclopentenyl oxygen ethyl ester and 0.9 part of Lauryl Alcohol ester；The catalyst is by dibutyl tin dilaurate and benzyl dimethyl
Dodecyl chlorination is with the mixture that weight ratio is that 2.2:1 is formed；The solvent is by propylene glycol, n-butanol and cyclohexanone with weight
Amount is than the mixture for 1:1.8:2.6 composition.
The preparation method of the surface protection paint includes the following steps:
1., according to parts by weight, compound resin is added into solvent, is mixed evenly, be made component A；
2., according to parts by weight, by nanometer ore, active carbon powder, dibutyl phthalate and catalyst living be added to
Step 1. in component A obtained, 28min is stirred by ultrasonic under the conditions of frequency is 19000Hz, component B is made；
3., according to parts by weight, by antibacterial agent and film forming agent be added to step 2. in component B obtained, in 1700rpm item
Homogeneous stirs 14min under part, and component C is made；
4., according to parts by weight, in the state of component C stirring, curing agent is added while stirring, is stirred after addition
Surface protection paint is made in 8.5min.
Embodiment 3
A kind of toilet lid containing rice husk and wood powder, the toilet lid are made up of mixture of hot pressing, and the mixture includes
The raw material of following parts by weight:
50 parts of rice husk
5 parts of wood powder
15 parts of urea formaldehyde glue.
The urea formaldehyde glue includes the raw material of following parts by weight:
The urea formaldehyde glue is made by following steps:
Step A: according to parts by weight, formaldehyde being added into reaction vessel, is warming up at 37 DEG C, and volume content is added and is
It is 8.5 that 28% sodium hydroxide, which adjusts pH value, and melamine then is added while stirring and accounts for the urea of the total dosage 28% of urea,
83.5 DEG C are warming up in whipping process in 45min, insulation reaction 35min after addition, then 55 DEG C are cooled to, material is made
A；
Step B: it is 5.8 that ammonium chloride is added into material A made from step A and adjusts pH value, keeps the temperature 35min at 85 DEG C,
Material B is made；
Step C: the urea for accounting for the total dosage 18% of urea being added into material B made from step B, keeps the temperature 10min at 85 DEG C,
Material C is made；
Step D: polyvinyl alcohol and remaining urea are added into material C made from step C, stirs 28min at 84 DEG C, so
After keep the temperature 13min, cool to 40 DEG C hereinafter, be made urea formaldehyde glue.
A kind of manufacturing process of the toilet lid as described above containing rice husk and wood powder, includes the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, sieved again
Screenings after screening twice is collected, obtains mixed powder by choosing；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) it mixes glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring
It is added, obtains mixture after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through
Three-level Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains horse
Bung first product；
(6) polishing spray painting: toilet lid first product of the step (5) after hot-forming is polished, then paints, then makes
Obtain toilet lid finished product.
In the step (1), the sub-sieve mesh number for mixing screening is 200 mesh；In the step (3), the revolving speed of stirring is
2650rpm；In the step (4), the sub-sieve mesh number of three level screen is 160 mesh.
In the step (5), hot-forming temperature is 115 DEG C, and pressure is 18 tons, time 375s.
In the step (6), the spray pressure of the spray painting is 10bar.
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 3:1.
Every part of modified epoxy is made by following steps:
55 parts of epoxy resin are warming up to 50 DEG C, nitrogen protection is led in stirring, and 14 parts of polypropylene glycols two are added while stirring and contract
Then water glycerin ether and 16.5 parts of carboxyl end group propylene glycol polyethers continue to stir 22min at 82 DEG C, are eventually adding 55 parts of poly- second
Glycol stirs 25min at 85 DEG C, and modified epoxy is made.
The partial size of nanometer ore living is 210nm；The partial size of the active carbon powder is 300nm；The curing agent is
The mixture being made of isocyanates and poly- azelaic acid acid anhydride with weight ratio for 2.0:1；The antibacterial agent is by chitosan and phosphoric acid
Calcium zinc-aluminium complex salt is with the mixture that weight ratio is that 3:1.5 is formed.
Every part of film forming agent includes 15 parts of hexylene glycol monobutyl ether acetates, 3.5 parts of propylene glycol monomethyl ethers, 2.0 parts of acrylic acid pair
Cyclopentenyl oxygen ethyl ester and 1.0 parts of Lauryl Alcohol esters；The catalyst is by dibutyl tin dilaurate and benzyl dimethyl
Dodecyl chlorination is with the mixture that weight ratio is that 2.5:1 is formed；The solvent is by propylene glycol, n-butanol and cyclohexanone with weight
Amount is than the mixture for 1:2.0:2.8 composition.
The preparation method of the surface protection paint includes the following steps:
1., according to parts by weight, compound resin is added into solvent, is mixed evenly, be made component A；
2., according to parts by weight, by nanometer ore, active carbon powder, dibutyl phthalate and catalyst living be added to
Step 1. in component A obtained, 25min is stirred by ultrasonic under the conditions of frequency is 20000Hz, component B is made；
3., according to parts by weight, by antibacterial agent and film forming agent be added to step 2. in component B obtained, in 1650rpm item
Homogeneous stirs 13.5min under part, and component C is made；
4., according to parts by weight, in the state of component C stirring, curing agent is added while stirring, is stirred after addition
Surface protection paint is made in 9min.
Embodiment 4
A kind of toilet lid containing rice husk and wood powder, the toilet lid are made up of mixture of hot pressing, and the mixture includes
The raw material of following parts by weight:
60 parts of rice husk
60 parts of wood powder
8 parts of urea formaldehyde glue.
The urea formaldehyde glue includes the raw material of following parts by weight:
The urea formaldehyde glue is made by following steps:
Step A: according to parts by weight, formaldehyde being added into reaction vessel, is warming up at 39 DEG C, and volume content is added and is
It is 8.6 that 29% sodium hydroxide, which adjusts pH value, and melamine then is added while stirring and accounts for the urea of the total dosage 26% of urea,
84 DEG C are warming up in whipping process in 48min, insulation reaction 38min after addition, then 58 DEG C are cooled to, material A is made；
Step B: it is 6.0 that ammonium chloride is added into material A made from step A and adjusts pH value, keeps the temperature 32min at 88 DEG C,
Material B is made；
Step C: the urea for accounting for the total dosage 15-20% of urea is added into material B made from step B, is kept the temperature at 88 DEG C
Material C is made in 9min；
Step D: polyvinyl alcohol and remaining urea are added into material C made from step C, stirs 26min at 84 DEG C, so
After keep the temperature 14min, cool to 40 DEG C hereinafter, be made urea formaldehyde glue.
A kind of manufacturing process of the toilet lid as described above containing rice husk and wood powder, includes the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, sieved again
Screenings after screening twice is collected, obtains mixed powder by choosing；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) it mixes glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring
It is added, obtains mixture after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through
Three-level Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains horse
Bung first product；
(6) polishing spray painting: toilet lid first product of the step (5) after hot-forming is polished, then paints, then makes
Obtain toilet lid finished product.
In the step (1), the sub-sieve mesh number for mixing screening is 300 mesh；In the step (3), the revolving speed of stirring is
2700rpm；In the step (4), the sub-sieve mesh number of three level screen is 230 mesh.
In the step (5), hot-forming temperature is 138 DEG C, and pressure is 19 tons, time 310s.
In the step (6), the spray pressure of the spray painting is 11bar.
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 3.5:1.
Every part of modified epoxy is made by following steps:
58 parts of epoxy resin are warming up to 53 DEG C, nitrogen protection is led in stirring, and 15 parts of polypropylene glycols two are added while stirring and contract
Then water glycerin ether and 17 parts of carboxyl end group propylene glycol polyethers continue to stir 18min at 86 DEG C, are eventually adding 58 parts of poly- second two
Alcohol stirs 22min at 88 DEG C, and modified epoxy is made.
The partial size of nanometer ore living is 255nm；The partial size of the active carbon powder is 250nm；The curing agent is
The mixture being made of isocyanates and poly- azelaic acid acid anhydride with weight ratio for 2.2:1；The antibacterial agent is by chitosan and phosphoric acid
Calcium zinc-aluminium complex salt is with the mixture that weight ratio is that 3.2:1.6 is formed.
Every part of film forming agent includes 1.6 parts of hexylene glycol monobutyl ether acetates, 3.8 parts of propylene glycol monomethyl ethers, 2.3 parts of acrylic acid pair
Cyclopentenyl oxygen ethyl ester and 1.1 parts of Lauryl Alcohol esters；The catalyst is by dibutyl tin dilaurate and benzyl dimethyl
Dodecyl chlorination is with the mixture that weight ratio is that 2.8:1 is formed；The solvent is by propylene glycol, n-butanol and cyclohexanone with weight
Amount is than the mixture for 1:2.3:3.0 composition.
The preparation method of the surface protection paint includes the following steps:
1., according to parts by weight, compound resin is added into solvent, is mixed evenly, be made component A；
2., according to parts by weight, by nanometer ore, active carbon powder, dibutyl phthalate and catalyst living be added to
Step 1. in component A obtained, 23min is stirred by ultrasonic under the conditions of frequency is 21000Hz, component B is made；
3., according to parts by weight, by antibacterial agent and film forming agent be added to step 2. in component B obtained, in 1600rpm item
Homogeneous stirs 13min under part, and component C is made；
4., according to parts by weight, in the state of component C stirring, curing agent is added while stirring, is stirred after addition
Surface protection paint is made in 9.5min.
Embodiment 5
A kind of toilet lid containing rice husk and wood powder, the toilet lid are made up of mixture of hot pressing, and the mixture includes
The raw material of following parts by weight:
70 parts of rice husk
70 parts of wood powder
20 parts of urea formaldehyde glue.
The urea formaldehyde glue includes the raw material of following parts by weight:
The urea formaldehyde glue is made by following steps:
Step A: according to parts by weight, formaldehyde being added into reaction vessel, is warming up at 40 DEG C, and volume content is added and is
It is 8.8 that 30% sodium hydroxide, which adjusts pH value, and melamine then is added while stirring and accounts for the urea of the total dosage 30% of urea,
85 DEG C are warming up in whipping process in 50min, insulation reaction 40min after addition, then 60 DEG C are cooled to, material A is made；
Step B: it is 6.2 that ammonium chloride is added into material A made from step A and adjusts pH value, keeps the temperature 30min at 90 DEG C,
Material B is made；
Step C: the urea for accounting for the total dosage 20% of urea being added into material B made from step B, keeps the temperature 8min at 90 DEG C,
Material C is made；
Step D: polyvinyl alcohol and remaining urea are added into material C made from step C, stirs 25min at 85 DEG C, so
After keep the temperature 15min, cool to 40 DEG C hereinafter, be made urea formaldehyde glue.
A kind of manufacturing process of the toilet lid as described above containing rice husk and wood powder, includes the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, sieved again
Screenings after screening twice is collected, obtains mixed powder by choosing；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) it mixes glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring
It is added, obtains mixture after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through
Three-level Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains horse
Bung first product；
(6) polishing spray painting: toilet lid first product of the step (5) after hot-forming is polished, then paints, then makes
Obtain toilet lid finished product.
In the step (1), the sub-sieve mesh number for mixing screening is 400 mesh；In the step (3), the revolving speed of stirring is
2800rpm；In the step (4), the sub-sieve mesh number of three level screen is 300 mesh.
In the step (5), hot-forming temperature is 150 DEG C, and pressure is 20 tons, time 250s.
In the step (6), the spray pressure of the spray painting is 12bar.
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 4:1.
Every part of modified epoxy is made by following steps:
60 parts of epoxy resin are warming up to 55 DEG C, nitrogen protection is led in stirring, and 16 parts of polypropylene glycols two are added while stirring and contract
Then water glycerin ether and 18 parts of carboxyl end group propylene glycol polyethers continue to stir 15min at 90 DEG C, are eventually adding 60 parts of poly- second two
Alcohol stirs 20min at 90 DEG C, and modified epoxy is made.
The partial size of nanometer ore living is 300nm；The partial size of the active carbon powder is 200nm；The curing agent is
The mixture being made of isocyanates and poly- azelaic acid acid anhydride with weight ratio for 2.4:1；The antibacterial agent is by chitosan and phosphoric acid
Calcium zinc-aluminium complex salt is with the mixture that weight ratio is that 3.5:1.8 is formed.
Every part of film forming agent is bicyclic including 1.8 parts of hexylene glycol monobutyl ether acetates, 4 parts of propylene glycol monomethyl ethers, 2.5 parts of acrylic acid
Pentenyl oxygen ethyl ester and 1.2 parts of Lauryl Alcohol esters；The catalyst is by dibutyl tin dilaurate and benzyl dimethyl ten
Dialkyl group chlorination is with the mixture that weight ratio is that 3:1 is formed；The solvent is by propylene glycol, n-butanol and cyclohexanone with weight ratio
For the mixture of 1:2.5:3.2 composition.
The preparation method of the surface protection paint includes the following steps:
1., according to parts by weight, compound resin is added into solvent, is mixed evenly, be made component A；
2., according to parts by weight, by nanometer ore, active carbon powder, dibutyl phthalate and catalyst living be added to
Step 1. in component A obtained, 20min is stirred by ultrasonic under the conditions of frequency is 22000Hz, component B is made；
3., according to parts by weight, by antibacterial agent and film forming agent be added to step 2. in component B obtained, in 1800rpm item
Homogeneous stirs 12min under part, and component C is made；
4., according to parts by weight, in the state of component C stirring, curing agent is added while stirring, is stirred after addition
Surface protection paint is made in 10min.
Comparative example 1
This comparative example and the difference of above-described embodiment 3 are:
A kind of manufacturing process of the toilet lid as described above containing rice husk and wood powder, includes the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, sieved again
Screenings after screening twice is collected, obtains mixed powder by choosing；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) it mixes glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring
It is added, obtains mixture after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through
Three-level Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains horse
Bung first product；
(6) it polishes: toilet lid first product of the step (5) after hot-forming is polished, toilet lid finished product is made.
Comparative example 2
This comparative example and the difference of above-described embodiment 3 are:
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 3:1.
Comparative example 3
This comparative example and the difference of above-described embodiment 3 are:
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 3:1.
Comparative example 4
This comparative example and the difference of above-described embodiment 3 are:
The spray painting uses surface protection paint, and the surface protection enamel-cover includes the raw material of following parts by weight:
The mixture that the compound resin is made of epoxy resin and acrylic resin with weight ratio for 3:1.
The epoxy resin is conventional epoxy resin.
Toilet lid made from embodiment 1-5 and comparative example 1-4 is carried out intensity, impact resistance, elongation at break, formaldehyde to wave
Hair amount, antibiotic property test, it is shown that test result is as follows:
By above-mentioned data it is found that the present invention uses the toilet lid that is prepared of rice husk and wood powder, using glue by wooden material
The firm bonding hot pressing of material makes toilet lid obtained have preferable tearing strength, impact strength, elongation at break etc. mechanical strong
Degree, and sprayed surface protective paint improve, anti-corrosion, antibacterial and mouldproof, chemical resistance saturating to the waterproof, seepage control of toilet lid and stability,
Surface gloss is high, smooth not coarse not abraded skin；And nanometer ore living and active carbon powder is utilized to absorb in urea formaldehyde glue
Can releasable formaldehyde volatile matter, reduce the burst size of methanal of toilet lid, and effectively improve closestool using antibacterial agent of the invention
The antibiotic property of lid.(wherein, the test method of antibiotic rate uses GB/T 21866-2008)
Compared with Example 3, the closestool cap surface of comparative example 1 does not have a sprayed surface protective paint, the tearing strength of toilet lid,
Impact strength, extension at break decline, and burst size of methanal is also higher, and antibiotic rate is lower, illustrate the present invention by toilet lid
Surface sprayed surface protective paint can carry out surface protection to toilet lid obtained, and improve its antibiotic property, while improving toilet lid
Tearing strength, impact strength, elongation at break.
Compared with Example 3, the surface protection paint of comparative example 2 does not use nanometer ore living and active carbon powder, is made
Toilet lid burst size of methanal it is higher, illustrate the present invention while being protected using surface protection paint to toilet lid, utilize
Nanometer ore living and active carbon powder absorb in toilet lid urea formaldehyde glue can releasable formaldehyde volatile matter, reduce toilet lid release
Volatile matter to the pollution of environment and the damage of human body.
Compared with Example 3, the surface protection paint of comparative example 3 does not use antibacterial agent, using surface protection paint to closestool
Lid is protected, and is prevented bacterium mould to be attached in toilet lid and is bred, and antibacterial agent improves the antibiotic property of surface protection paint, into one
Step inhibits the bacterium mould of closestool cap surface, so that toilet lid obtained is had preferable antibiotic property, the use for improving toilet lid is defended
Natural disposition.
Compared with Example 3, the compound resin in the surface protection paint of comparative example 4 uses common conventional epoxy,
Without toughening modifying, protective paint is made to be easy crack and damage, intensity is lower, and it is low in the adhesive force of closestool cap surface, it is easy to fall off, into
And the easy dampness of toilet lid, moisture is made easily to permeate internal, growth bacterium；Illustrate the present invention by utilizing glycol diglycidyl
Ether and carboxyl end group propylene glycol polyethers are modified epoxy resin, significantly improve the toughness of surface protection paint, intensity and in closestool
The adhesive force of cap surface, it is not easy to crack or fall off, surface protection paint is improved to the protectiveness of toilet lid, further increases toilet lid
Waterproof, impermeable, low-methoxyl aldehyde volatilization, antibacterial and mouldproof, anti-corrosive properties, chemical resistance and stability, surface gloss is high, it is smooth not
Coarse not abraded skin, practicability is high, long service life.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (10)
1. a kind of toilet lid containing rice husk and wood powder, it is characterised in that: the toilet lid is made up of mixture of hot pressing, described mixed
Close the raw material that material includes following parts by weight:
30-70 parts of rice husk
30-70 parts of wood powder
10-20 parts of urea formaldehyde glue.
2. a kind of toilet lid containing rice husk and wood powder according to claim 1, it is characterised in that: the urea formaldehyde glue includes
The raw material of following parts by weight:
3. a kind of toilet lid containing rice husk and wood powder according to claim 2, it is characterised in that: the urea formaldehyde glue is by such as
Lower step is made:
Step A: according to parts by weight, formaldehyde being added into reaction vessel, is warming up at 35-40 DEG C, and addition volume content is 25-
It is 8.2-8.8 that 30% sodium hydroxide, which adjusts pH value, and melamine is then added while stirring and accounts for the total dosage 25-30% of urea
Urea, 82-85 DEG C is warming up in 40-50min in whipping process, insulation reaction 30-40min after addition, then cool down
To 50-60 DEG C, material A is made；
Step B: it is 5.2-6.2 that ammonium chloride is added into material A made from step A and adjusts pH value, keeps the temperature 30- at 80-90 DEG C
Material B is made in 40min；
Step C: the urea for accounting for the total dosage 15-20% of urea is added into material B made from step B, keeps the temperature 8- at 80-90 DEG C
Material C is made in 12min；
Step D: polyvinyl alcohol and remaining urea being added into material C made from step C, stirs 25-30min at 83-85 DEG C,
Then 10-15min is kept the temperature, is cooled to 40 DEG C hereinafter, urea formaldehyde glue is made.
4. a kind of manufacturing process of the toilet lid as described in any one of claims 1-3 containing rice husk and wood powder, it is characterised in that:
Include the following steps:
(1) it sieves powder: according to parts by weight, rice husk and wood powder being subjected to mixing screening, and oversize is crushed, screened again,
Screenings after screening twice is collected, mixed powder is obtained；
(2) it dries: the mixed powder after step (1) screening being dried, is dried to powder moisture content less than 95%；
(3) mix glue: according to parts by weight, urea formaldehyde glue being added into the mixed powder after step (2) drying, while stirring plus
Enter, mixture is obtained after addition；
(4) three level screen: the mixture that step (3) obtains is subjected to roller and is smashed, then the mixture after smashing is passed through into three-level
Multilayer vibrating screen is screened, and three-level oversize, three-level screenings and sediment are obtained；
(5) hot pressing: the three-level screenings that step (4) is obtained is hot-forming according to mold shape progress green body, obtains toilet lid
First product；
(6) polishing spray painting: toilet lid first product of the step (5) after hot-forming being polished, is then painted, then horse is made
Bung finished product.
5. a kind of manufacturing process of toilet lid containing rice husk and wood powder according to claim 4, it is characterised in that: the step
Suddenly in (1), the sub-sieve mesh number for mixing screening is 20-400 mesh；In the step (3), the revolving speed of stirring is 2500-2800rpm；
In the step (4), the sub-sieve mesh number of three level screen is 20-300 mesh.
6. a kind of manufacturing process of toilet lid containing rice husk and wood powder according to claim 4, it is characterised in that: the step
Suddenly in (5), hot-forming temperature is 80-150 DEG C, and pressure is 15-20 tons, time 250-500s.
7. a kind of manufacturing process of toilet lid containing rice husk and wood powder according to claim 4, it is characterised in that: the step
Suddenly in (6), the spray pressure of the spray painting is 8-12bar, and the spray painting uses surface protection paint, and the surface protection enamel-cover includes
The raw material of following parts by weight:
The mixture that the compound resin is made of modified epoxy and acrylic resin with weight ratio for 2-4:1.
8. a kind of manufacturing process of toilet lid containing rice husk and wood powder according to claim 7, it is characterised in that: every part of institute
Modified epoxy is stated to be made by following steps:
50-60 parts of epoxy resin are warming up to 45-55 DEG C, nitrogen protection is led in stirring, and 12-16 parts poly- the third two are added while stirring
Then alcohol diglycidyl ether and 15-18 parts of carboxyl end group propylene glycol polyethers continue to stir 15-30min at 75-90 DEG C, finally
50-60 parts of polyethylene glycol is added, stirs 20-30min at 80-90 DEG C, modified epoxy is made.
9. a kind of manufacturing process of toilet lid containing rice husk and wood powder according to claim 7, it is characterised in that: described to receive
The partial size of rice ore living is 120-300nm；The partial size of the active carbon powder is 200-400nm；The curing agent is by isocyanide
The mixture that acid esters and poly- azelaic acid acid anhydride are formed with weight ratio for 1.6-2.4:1；The antibacterial agent is by chitosan and calcium phosphate
Zinc-aluminium complex salt is with the mixture that weight ratio is that 2.5-3.5:1.2-1.8 is formed.
10. a kind of manufacturing process of toilet lid containing rice husk and wood powder according to claim 7, it is characterised in that: every part
The film forming agent includes 1.2-1.8 parts of hexylene glycol monobutyl ether acetates, 3-4 parts of propylene glycol monomethyl ethers, 1.5-2.5 parts of acrylic acid bicyclic penta
Alkenyl oxygen ethyl ester and 0.8-1.2 parts of Lauryl Alcohol esters；The catalyst is by dibutyl tin dilaurate and benzyl dimethyl
Dodecyl chlorination is with the mixture that weight ratio is that 2-3:1 is formed；The solvent is by propylene glycol, n-butanol and cyclohexanone with weight
Amount is than the mixture for 1:1.5-2.5:2.4-3.2 composition.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643042A (en) * | 2022-02-28 | 2022-06-21 | 南通康净环保科技有限公司 | Novel formaldehyde removing material and processing technology thereof |
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|---|---|
| CN109810526B (en) | 2020-12-29 |
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