CN101074310B - Production of domestic resin appliances with inorganic filler - Google Patents
Production of domestic resin appliances with inorganic filler Download PDFInfo
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- CN101074310B CN101074310B CN2007100282629A CN200710028262A CN101074310B CN 101074310 B CN101074310 B CN 101074310B CN 2007100282629 A CN2007100282629 A CN 2007100282629A CN 200710028262 A CN200710028262 A CN 200710028262A CN 101074310 B CN101074310 B CN 101074310B
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- trimeric cyanamide
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- formaldehyde solution
- formaldehyde
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Abstract
Production of combined inorganic filler resin domestic tool is carried out by heating while reacting for formaldehyde solution and cyanuramide in proportion of 2-3 mol to become white, putting melamine resin into container, air drying to become lump, cutting, refining, placing into drier, drying at 20-30 degree, re-drying at 40-60 degree, re-drying at 70-80 degree, taking melamine resin and inorganic filler kaolin in proportion of 1:1, adding into mold-discharging agent 0.8-2% and hardener 0.2-0.5%, agitating, crushing, sifting, and hot-press forming. It is cheap, has better heating-resisting performance and chemical stability, and excellent toughness, oil, alcohol, boiling-water, light and fouling resistances.
Description
Technical field
The present invention relates to novel hygienic environment-protecting apparatus material field, specifically is a kind of manufacture method of the resin household implements in conjunction with mineral filler.
Background technology
Present household implements comprises tableware, tableware, adornment etc., and main application pottery, glass, metal, timber, plastic or other material are made.Stupalith is a main raw of making tableware, and its stable in properties, and heat-resisting, oil resistant, anti-alcohol, anti-pollution be a kind of environmentally-friendly sanitary household implements material, but ceramic fragility are big, breaks into pieces easily, and heavy, can not make opaque products.Glass material is transparent attractive in appearance, but high temperature resistant, and is broken easily, and low contamination resistance is not suitable for using as tableware or tableware.Metal products intensity is big, is not afraid of strong collision, and is high temperature resistant, but cost an arm and a leg, and it is fast to conduct heat, conduction, and get rusty easily.The timber environmental protection, but there are the wet drying shrinkage that rises, short-life shortcoming.General plastic material is made tableware toxic substance such as Diazolidinyl Urea behind alternating temperature, is detrimental to health.
Terpolycyantoamino-formaldehyde resin itself is nontoxic, and has oil resistant, anti-alcohol, resistant to pollution performance, can be made into tableware and tableware various colors, imitative porcelain.Precondensed UreaFormaldehyde Resin thermosetting tableware non-refractory, resistance to crocking is poor, can produce empyreumatic phenomenon in sterilizing-cabinet.Be the deficiency of existing resene apparatus owing to the hot pressing complete processing in addition, cause quality good poor uneven, the high temperature resistant degree of the apparatus of being worked it out has only about 80 ℃, and intensity is also smaller.So, though terpolycyantoamino-formaldehyde resin or Precondensed UreaFormaldehyde Resin are light, also have certain oil resistant, anti-alcohol, resistant to pollution performance, can not make the tableware or the tableware of Environmental Safety.
Summary of the invention
The objective of the invention is the deficiency that exists at the above existing household implements, provide a kind of resistant to elevated temperatures, high-intensity, save a kind of manufacture method of the resin household implements in conjunction with mineral filler of the environmental protection health of cost.
The present invention is achieved in that a kind of manufacture method of the resin household implements in conjunction with mineral filler, comprises following manufacturing step:
(1) with mol ratio be 2～3 formaldehyde solutions and trimeric cyanamide reacting by heating: earlier trimeric cyanamide is heated to 60 ℃～80 ℃, the time is 20～40min, adds formaldehyde solution then, and temperature rises to 80～140 ℃, and the reaction times is 60～120min; By the time trimeric cyanamide and formaldehyde solution reaction forms thick object, temperature is controlled at 80～90 ℃ continues reaction to white; Stop heating, add 0.8～1.2% trolamine of trimeric cyanamide and formaldehyde solution weight, to stop the reaction of formaldehyde and trimeric cyanamide;
(2) with the terpolycyantoamino-formaldehyde resin of stopped reaction, place air-dry extremely bulk in the container, cut refinement, place loft drier then, earlier 20～30 ℃ of dryings, again 40～60 ℃ of dryings, at last 70～80 ℃ of dryings;
(3) get above-mentioned terpolycyantoamino-formaldehyde resin and mineral filler by 1: 1 part by weight, the releasing agent of adding 0.8～2% and 0.2～0.5% stiffening agent stir, and pulverize screening;
(4) hot-forming, temperature is 135～180 ℃, and pressure is 70～200 tons.
Stop to heat the back reheat in described formaldehyde solution and the trimeric cyanamide reaction process before forming thick object 2～4 times, to reach the effect of taking off formaldehyde fully.
The sieve of described screening is 100 orders.
Described mineral filler is a ceramic grade kaolin.
The present invention in the process of trimeric cyanamide and formaldehyde solution polyreaction production of melamine formaldehyde resin repeatedly reacting by heating for several times, suitable prolongation the reaction times, make free formaldehyde reach effective release.In the follow-up air-dry and long-time process of baking exsiccant, free formaldehyde is further taken off, the content of formaldehyde can be far below the standard of the 10mg/L that is detrimental to health in the in the end hot-forming product, and the apparatus of making is a kind of product of safety and environmental protection.Kaolin is mainly by forming less than kaolinite bunch mineral (kaolinite, dickite, nacrite, halloysite etc.) such as the small sheet of 2 microns, tubulose, lamination shapes, be a kind of good additive, can improve the processibility of thermotolerance, chemical stability, weather resistance and the moulding of resin after hot-forming significantly with the synergy of organic resin.The apparatus that present method is made has the thermotolerance and the chemical stability of similar pottery, and light weight and have toughness, and oil resistant, anti-alcohol, anti-pollution, fast light, anti-boiling water etc. the more important thing is and can reduce cost of manufacture significantly to have high promotional value.
Embodiment
Be described in detail below in conjunction with the manufacture method of specific embodiment the new a kind of resin household implements in conjunction with mineral filler of the present invention.
Embodiment 1
A kind of manufacture method of the resin household implements in conjunction with mineral filler may further comprise the steps:
(1) be the reaction of 2～3 formaldehyde solution and trimeric cyanamide heated polymerizable with mol ratio: formaldehyde solution is heated to 60 ℃～80 ℃, and the time is 20～40min, adds trimeric cyanamide then, and temperature rises to 80～140 ℃, and the reaction times is 60～120min; By the time trimeric cyanamide and formaldehyde reaction form thick object, temperature is controlled at 80～90 ℃ continues reaction to white.The stopping of formaldehyde and the trimeric cyanamide reaction process before forming thick object heated the back reheat 2～4 times, to reach the effect of taking off formaldehyde; Formaldehyde and trimeric cyanamide react and stop heating to the white, add 0.8～1.2% trolamine of trimeric cyanamide and formaldehyde weight, to stop the reaction of formaldehyde and trimeric cyanamide;
(2) cooled terpolycyantoamino-formaldehyde resin is In Shade air-dry extremely block, cut refinement, place loft drier then, earlier 20～30 ℃ of dryings, again 40～60 ℃ of dryings, at last 70～80 ℃ of dryings;
(3) get above-mentioned terpolycyantoamino-formaldehyde resin and mineral filler by 1: 1 part by weight, the releasing agent of adding 0.8～2% and 0.2～0.5% stiffening agent stir, and pulverize screening;
(4) hot-forming.
Embodiment 2
A kind of manufacture method of the resin household implements in conjunction with mineral filler may further comprise the steps:
(1) be the reaction of 2 formaldehyde solution and trimeric cyanamide heated polymerizable with mol ratio: trimeric cyanamide is heated to 60 ℃～80 ℃, and the time is 20～40min, adds formaldehyde solution then, and temperature rises to 80～140 ℃, and the reaction times is 60～120min; By the time trimeric cyanamide and formaldehyde solution reaction forms thick object, temperature is controlled at 80～90 ℃ continues reaction to white; Stop to heat the back reheat in formaldehyde solution and the trimeric cyanamide reaction process before forming thick object 2～4 times, to reach the effect of taking off formaldehyde; Formaldehyde solution and trimeric cyanamide react and stop heating to the white, add 1% trolamine of trimeric cyanamide and formaldehyde weight, to stop the reaction of formaldehyde and trimeric cyanamide;
(2) cooled terpolycyantoamino-formaldehyde resin is divided into 1: 1 A component and B component, In Shadely air-dryly cuts refinement, place loft drier then, earlier 20～30 ℃ of dryings, again 40～60 ℃ of dryings, at last 70～80 ℃ of dryings to block;
(3) in 1: 1 ratio above-mentioned terpolycyantoamino-formaldehyde resin and kaolin, the releasing agent of adding 1.2～1.6% and 0.3～0.4% stiffening agent stir, and pulverize screening; The sieve of screening is 100 orders;
(4) hot-forming, temperature is 135～180 ℃, and pressure is 70～200 tons.
It is hot-forming commonly used that above-described releasing agent and stiffening agent are terpolycyantoamino-formaldehyde resin, and releasing agent can be polydimethylsiloxane (dimethyl silicone oil), paraffin, talcum powder, polyethylene wax etc.Solidifying agent can be that phenylformic acid trolamine, amine cease fragrant acid etc.Inorganic mineral is selected low-cost ceramic grade kaolin for use, the performance after a raising is hot-forming.Formaldehyde solution generally can be 37% formaldehyde solution for concentration.Hot-formingly can go out various difform products by different Mold Makings.In order to guarantee the transparent clean level of product after the moulding, it is clean that mould must keep, and avoids dust, pollutions such as solid particulate.Hot-forming can be that the injection moulding formula is hot-forming, and temperature is 135～180 ℃, and pressure is 70～200 tons.In order to reach the requirement that increases product color, in above-mentioned manufacture craft, can add coloring process.
The apparatus that present method is made has the high strength of similar pottery but light weight and have toughness, resistance to elevated temperatures is remarkable, and heat-resisting, oil resistant, anti-alcohol, anti-pollution, fast light, anti-boiling water etc., the more important thing is and can reduce cost of manufacture significantly to have high promotional value.
Claims (5)
1. the manufacture method in conjunction with the resin household implements of mineral filler is characterized in that, comprises following making step:
(1) be the reaction of 2～3 formaldehyde solution and trimeric cyanamide heated polymerizable with mol ratio: trimeric cyanamide is heated to 60 ℃～80 ℃, and the time is 20～40min, adds formaldehyde solution then, and temperature rises to 80～140 ℃, and the reaction times is 60～120min; By the time trimeric cyanamide and formaldehyde solution reaction forms thick object, temperature is controlled at 80～90 ℃ continues reaction to white; Stop to heat the back reheat in described formaldehyde solution and the trimeric cyanamide reaction process before forming thick object 2～4 times; Stop heating, add 0.8～1.2% trolamine of trimeric cyanamide and formaldehyde solution weight;
(2) the In Shade air-dry one-tenth of the terpolycyantoamino-formaldehyde resin of stopped reaction is block, cut refinement, place loft drier then, earlier 20～30 ℃ of dryings, again 40～60 ℃ of dryings, at last 70～80 ℃ of dryings;
(3) get above-mentioned terpolycyantoamino-formaldehyde resin and mineral filler by 1: 1 part by weight, the releasing agent of adding 0.8～2% and 0.2～0.5% stiffening agent stir, and pulverize screening;
(4) hot-forming.
2. the manufacture method of a kind of resin household implements in conjunction with mineral filler as claimed in claim 1 is characterized in that: comprise following making step:
(1) be the reaction of 2 formaldehyde solution and trimeric cyanamide heated polymerizable with mol ratio: trimeric cyanamide is heated to 60 ℃～80 ℃, and the time is 20～40min, adds formaldehyde solution then, and temperature rises to 80～140 ℃, and the reaction times is 60～120min; By the time trimeric cyanamide and formaldehyde solution reaction forms thick object, temperature is controlled at 80～90 ℃ continues reaction to white; Stop to heat the back reheat in described formaldehyde solution and the trimeric cyanamide reaction process before forming thick object 2～4 times; Stop heating, add 1% trolamine of trimeric cyanamide and formaldehyde solution weight;
(2) cooled terpolycyantoamino-formaldehyde resin is In Shade air-dry extremely block, cut refinement, place loft drier then, earlier 20～30 ℃ of dryings, again 40～60 ℃ of dryings, at last 70～80 ℃ of dryings;
(3) get above-mentioned terpolycyantoamino-formaldehyde resin and kaolin in 1: 1 middle ratio, the releasing agent of adding 1.2～1.6% and 0.3～0.4% stiffening agent stir, and pulverize screening;
(4) hot-forming.
3. the manufacture method of a kind of resin household implements in conjunction with mineral filler as claimed in claim 2, it is characterized in that: described kaolin is ceramic grade kaolin.
4. want the manufacture method of 3 described a kind of resin household implements in conjunction with mineral filler as right, it is characterized in that: the sieve of described screening is 100 orders.
5. the manufacture method of a kind of resin household implements in conjunction with mineral filler as claimed in claim 1 or 2, it is characterized in that: described hot-forming temperature is 135～180 ℃, pressure is 70～200 tons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100282629A CN101074310B (en) | 2007-05-29 | 2007-05-29 | Production of domestic resin appliances with inorganic filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100282629A CN101074310B (en) | 2007-05-29 | 2007-05-29 | Production of domestic resin appliances with inorganic filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101074310A CN101074310A (en) | 2007-11-21 |
| CN101074310B true CN101074310B (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100282629A Expired - Fee Related CN101074310B (en) | 2007-05-29 | 2007-05-29 | Production of domestic resin appliances with inorganic filler |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654542B (en) * | 2009-09-16 | 2011-08-10 | 浙江万安塑料有限公司 | High-temperature resistant porcelain imitation material and production method thereof |
| CN102382419A (en) * | 2011-08-18 | 2012-03-21 | 东阳市雅尔密胺餐具厂 | Method for manufacturing bamboo fiber melamine product |
| CN103589109B (en) * | 2013-11-08 | 2015-05-06 | 苏州凯丰电子电器有限公司 | Formula of reinforced melaminoformaldehyde resin |
| CN110480902B (en) * | 2019-08-09 | 2021-11-23 | 东莞市瑞欣美耐皿制品有限公司 | Melamine utensil and preparation method thereof |
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2007
- 2007-05-29 CN CN2007100282629A patent/CN101074310B/en not_active Expired - Fee Related
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| CN101074310A (en) | 2007-11-21 |
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Granted publication date: 20101013 Termination date: 20120529 |