CN104761867A - Latent curing agent for producing amino molding compound - Google Patents
Latent curing agent for producing amino molding compound Download PDFInfo
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- CN104761867A CN104761867A CN201410002733.9A CN201410002733A CN104761867A CN 104761867 A CN104761867 A CN 104761867A CN 201410002733 A CN201410002733 A CN 201410002733A CN 104761867 A CN104761867 A CN 104761867A
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Abstract
The invention discloses a latent curing agent producing an amino molding compound. Raw materials for producing the amino molding compound comprise an aqueous solution of formaldehyde, urea, melamine, the latent curing agent, caustic soda and a filler. The latent curing agent is prepared through a dissolving reaction of 90-110 parts by weight of water, 40-60 parts by weight of sulfamic acid, 20-30 parts by weight of magnesium oxide, 10-15 parts by weight of zinc, 5-7 parts by weight of ammonia water, 2.5-3.5 parts by weight of triethanolamine, 25-35 parts by weight of ammonium chloride, 19-20 parts by weight of ethanol, 40-60 parts by weight of PPG and 20-30 parts by weight of T-8 at 45DEG C for 30min. A general alkali-acid-alkali method is adopted to synthesize resin, the latent curing agent is added, an addition polycondensation phase is carried out, and the resin and the filler are input into a vacuum granulating reaction kettle, and closed production is completed in a one step manner.
Description
technical field:
the present invention relates to plastic applications, relate in particular to environment-friendly type amino film plastics production technique.
Background technology
Along with the propelling of human civilization, the environmental consciousness of people is more and more stronger, requirement that is green to clothing, food, lodging and transportion--basic necessities of life, environmental protection is also more and more higher, and the plastics pressing close to the life of people enjoy the concern of human consumer especially, research staff has released one after another many nontoxic, harmless, pollution-free, degredation plastic new variety, because its machine-shaping is convenient, bright in luster, cost is low, extensively should in fields such as furniture building materials and ornaments, daily necessities, artwork, tablewares.Utilizing wood powder saw powder shaving, vegetable fibre, paddy shell, carapace powder, starch and inorganic oxide etc. to improve thermosetting resin, is exactly the class in nontoxic, harmless plastics.
The amino Moulding powder processing method of current domestic production is for raw material with formaldehyde, urea, trimeric cyanamide etc., by integrating slurrying with filler, dry with mesh bag drying baker, formation plate mould material, then carry out pulverizing, ball milling, make melamine moulding powder, whole production process about 8 hours.This mode labour intensity is large, big energy-consuming, and have pollution to environment, have infringement to human body, the dust of finished product is many, density is low, appearance poor, Quality and yield is all difficult to effective raising.
summary of the invention:
The materials such as the raw material of a kind of material produced in the latent curative of amino film plastics of the present invention is formalin, urea, trimeric cyanamide, latent curative, caustic soda, packing material form.Wherein the parts by weight of each component are respectively: formalin 7-30, urea 4-18, trimeric cyanamide 1-5, latent curative 0.1-0.2, packing material 10-85, described packing material is pulp board, waste paper wood pulp, wood powder, vegetable fibre or paddy shell, bone meal, the mixture of starch and inorganic oxide, and pulp board, waste paper wood pulp, wood powder, vegetable fibre or paddy shell, bone meal, the weight ratio of starch and inorganic oxide is 50-90:6-20, described inorganic oxide is selected from calcium oxide, aluminum oxide and kaolin etc., described latent curative: water, thionamic acid, magnesium oxide, zinc, ammoniacal liquor, trolamine, ammonium chloride, ethanol, PPG, the mixture that the material properties such as T-8 are identical, parts by weight are respectively: 90-110, 40-60, 20-30, 10-15, 5-7, 2.5-3.5, 25-35, 19-20, 40-60, 20-30.Gating enter the addition polycondensation stage after alkali-acid-alkali method synthetic resins adds latent curative, by resin and packing material input vacuum granulation reactor, close production one step and complete.
Technical scheme of the present invention realizes like this, contriver is through the experimental study of long period, to the proportioning of thermosetting resin and packing material, and the adding technology of packing material, selecting etc. of packing material proposes preferably scheme and particulate material production method.A kind ofly produce in the latent curative of amino film plastics, the parts by weight of amino film plastics raw material are: formalin 7-30, urea 4-18, trimeric cyanamide 1-5, latent curative 0.1-0.2, packing material 10-85, caustic-soda aqueous solution is appropriate, trimeric cyanamide mentioned here and urea to be its content be more than 95% solid, formalin to be its content be 37% formalin, as content has change, then to do to want corresponding adjustment to proportioning.Production process is: be the resins synthesis stage: the alkali-acid-alkali method synthetic resins of gating, latent curative in resin liquid: water, thionamic acid, magnesium oxide, zinc, ammoniacal liquor, trolamine, ammonium chloride, ethanol, PPG, T-8 etc., parts by weight are respectively: 90-110,40-60,20-30,10-15,5-7,2.5-3.5,25-35,19-20,40-60,20-30, at 45 DEG C, solubilizing reaction mixing, for subsequent use after 30min.Give vacuum granulation reactor all-in-one by resin liquid and each stopping composition, be fully uniformly mixed, high-speed stirring is after 2 ~ 5 minutes, turn low speed, material reaction temperature is incubated 40 minutes under 50-60 degree, opens vacuum valve and draws water, stirring at low speed 10 ~ 15 minutes, transfer interval high-speed stirring to, temperature of charge 60-75 DEG C, measured moisture after 40 minutes, meet decompress(ion) cooling blowing after moisture requirement, amino granular molding compound, omnidistance tasteless without bisque quality better, cost-saving raising effect.
beneficial effect:
1, the present invention contains latent curative in thermosetting resin resin liquid, then by resin and packing material input vacuum granulation reactor all-in-one, closed production one step with functions such as polymerization, kneading, dispersion, dryings completes.Omnidistance tasteless without bisque stable performance quality better, cost-saving raising effect.
2, latent curative is: water, thionamic acid, magnesium oxide, zinc, ammoniacal liquor, trolamine, ammonium chloride, ethanol, the mixture that the material properties such as PPG, T-8 are identical, and cost is low, and performance is good.
3, owing to adding latent curative, and improve Performance Strength than the finished product that single solidifying agent is made, administration measure quality better, expands the use range of such material.
embodiment:
Embodiment 1: latent curative: water, thionamic acid, magnesium oxide, zinc, ammoniacal liquor, trolamine, ammonium chloride, ethanol, the mixture that the material properties such as PPG, T-8 are identical, parts by weight are respectively: 90, and 40,20,10,5,2.5,25,19,40, at 20,45 DEG C, solubilizing reaction mixing, for subsequent use after 30min.
Getting formalin 240 kilograms, urea 120 kg, trimeric cyanamide 3 kilograms, latent curative 4.5 kilograms etc. adds in vacuum granulation reactor all-in-one, the alkali-acid-alkali method synthetic resins of gating.
By add in resin liquid packing material give up blank sheet of paper slurry wood pulp 65 kilograms, Zinic stearas 1.2 kilograms, vacuum granulation reactor all-in-one, fully be uniformly mixed, high-speed stirring, after 2 ~ 5 minutes, turns low speed, material reaction temperature is incubated 40 minutes under 50-60 degree, unlatching vacuum valve draws water, stirring at low speed 10 ~ 15 minutes, transfers interval high-speed stirring to, temperature of charge 65-70 DEG C, measure moisture after 40 minutes, meet decompress(ion) cooling blowing after moisture requirement, amino granular molding compound.
Embodiment 2: latent curative: water, Ammonium sulfamate, magnesium oxide, zinc, ammoniacal liquor, trolamine, ammonium chloride, ethanol, PPG, T-8 etc., parts by weight are respectively: 110, and 60,30,15,7,3.5,35,20,60,30, at 45 DEG C, solubilizing reaction mixing, for subsequent use after 30min.
Get formalin 300 kilograms, 160 kilograms, urea, trimeric cyanamide 10 kilograms, urotropine 10 kilograms, oxalic acid 0.6 kilogram, glycerine 2 kilograms, latent curative 5 kilograms, Zinic stearas 1.5 kilograms etc. adds in vacuum granulation reactor all-in-one, the alkali-acid-alkali method synthetic resins of gating.
By material wood powder 350 kilograms, 150 kilograms, shell powder, the calcium based on bone meal 20 kilograms, puts into all-in-one, closed productions such as being polymerized with example 1, mediating, disperse, be dry.Not only environmental protection, but also the amino granular molding compound of economy and durability.
Embodiment 3: latent curative: water, thionamic acid sodium, magnesium oxide, zinc, ammoniacal liquor, trolamine, ammonium chloride, ethanol, the mixture that the material properties such as PPG, T-8 are identical, parts by weight are respectively: 100, and 50,25,12,6,3,30,20,50, at 25,45 DEG C, solubilizing reaction mixing, for subsequent use after 30min.
Get formalin 200 kilograms, trimeric cyanamide 1 kilogram, latent curative 2.8 kilograms, with example 1, other weight of material is constant, adds in all-in-one, the alkali-acid-alkali method synthetic resins of technique gating.Vacuum granulation reactor all-in-one, under whipped state, adds 28 kilograms, waste cotton flaxen fiber, waste paper starch 26 kilograms, kaolin 33 kilograms, 2 kilograms, colorant successively, following operating process as implemented, with example 1, polymerization, mediate, dispersion, the closed production such as dry.Can high strength be manufactured, shock resistance, stretching resistance labour safety product with this material, attractive in appearance, generous, fall not bad, also can make Dining tool, available mahjong chess and card, flowerpot, tableware, artwork, Top Grade Decorative Plank, the environment-friendly materials such as imitative solid wood household, economical, material benefit.
Can also use farm crop tangerine bar, add starch and make packing material, mix inorganic oxide in right amount, produce environment-friendly type plastic, use this craft articles, household utensils, decorative building material etc. not only have above-mentioned advantage, and raw material sources are extensive, with low cost.
Claims (3)
1. produce the latent curative of amino film plastics for one kind, it is characterized in that preparing this environment-friendly type amino film plastics raw material is: formalin, urea, trimeric cyanamide, latent curative, caustic soda, the material compositions such as packing material, alkali-acid-alkali method the synthesis of resin gating, add in resin in the vacuum granulation reactor all-in-one of latent curative and packing material input designed, designed, closed production one step with functions such as polymerization, kneading, dispersion, dryings completes.
2. prepare a kind of latent curative producing amino film plastics described in claim 1 for one kind, the parts by weight of each component of its feature of amino film plastics are respectively: formalin 7-30, urea 4-18, trimeric cyanamide 1-5, latent curative 0.1-0.2, packing material 10-85, described packing material is pulp board, waste paper wood pulp, wood powder, vegetable fibre or paddy shell, bone meal, starch and inorganic oxide and colorant, the mixture of Zinic stearas etc., and pulp board, waste paper wood pulp, wood powder, vegetable fibre or paddy shell, bone meal, the weight ratio of starch and inorganic oxide is 50-90:6-20, described inorganic oxide is selected from calcium oxide, aluminum oxide and kaolin etc.
3. prepare a kind of latent curative producing amino film plastics described in claim 1, it is characterized in that adding latent curative by resin liquid, latent curative combined composition is: water, thionamic acid, magnesium oxide, zinc, ammoniacal liquor, trolamine, ammonium chloride, ethanol, the mixture that the material properties such as PPG, T-8 are identical, parts by weight are respectively: 90-110,40-60,20-30,10-15,5-7,2.5-3.5,25-35,19-20,40-60,20-30, at 45 DEG C, solubilizing reaction mixing, for subsequent use after 30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002733.9A CN104761867A (en) | 2014-01-04 | 2014-01-04 | Latent curing agent for producing amino molding compound |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002733.9A CN104761867A (en) | 2014-01-04 | 2014-01-04 | Latent curing agent for producing amino molding compound |
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| CN104761867A true CN104761867A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410002733.9A Pending CN104761867A (en) | 2014-01-04 | 2014-01-04 | Latent curing agent for producing amino molding compound |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106632934A (en) * | 2016-12-05 | 2017-05-10 | 广东榕泰实业股份有限公司 | Preparation method of neutral complex curing agent of amino molding material |
| CN108908782A (en) * | 2018-06-22 | 2018-11-30 | 南京百美塑业有限公司 | A kind of prilling process of amino film plastics particle |
-
2014
- 2014-01-04 CN CN201410002733.9A patent/CN104761867A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106632934A (en) * | 2016-12-05 | 2017-05-10 | 广东榕泰实业股份有限公司 | Preparation method of neutral complex curing agent of amino molding material |
| CN108908782A (en) * | 2018-06-22 | 2018-11-30 | 南京百美塑业有限公司 | A kind of prilling process of amino film plastics particle |
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Application publication date: 20150708 |
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| WD01 | Invention patent application deemed withdrawn after publication |