CN108178898A - A kind of preparation method of high temperature resistant melamine molding compound - Google Patents
A kind of preparation method of high temperature resistant melamine molding compound Download PDFInfo
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- CN108178898A CN108178898A CN201711388065.8A CN201711388065A CN108178898A CN 108178898 A CN108178898 A CN 108178898A CN 201711388065 A CN201711388065 A CN 201711388065A CN 108178898 A CN108178898 A CN 108178898A
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- melamine
- high temperature
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- molding compound
- temperature resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to plastics preparing technical field, more particularly to a kind of preparation method of high temperature resistant melamine molding compound.Include the following steps：(1) melamine resin is prepared：By the formalin of 36.8% mass fraction, melamine with mass ratio 2.0 in vacuum environment:1 ratio is added in stainless steel cauldron, and it is 8 9.5 to adjust above-mentioned mixed solution pH value with the PHA conditioning agents of 10% mass fraction, then adds in triethanolamine, and reaction temperature rises to 90 98 DEG C of pyroreactions 120 minutes, and melamine resin is made.Melamine molding compound prepared by the present invention has the advantages that high temperature resistant, anti-aging, high intensity, high gloss, lovely luster, free formaldehyde content are low etc..
Description
Technical field
The present invention relates to plastics preparing technical field, more particularly to a kind of preparation method of high temperature resistant melamine molding compound.
Background technology
Melamine molding compound is to obtain resin by formaldehyde, melamine polymerisation, then with cellulose, curing agent, demoulding
A kind of thermosetting plastics for forming of the blendings such as agent, toner drying, has that easily molded, shrinking percentage is low, size is accurate, processing performance is good
The advantages of good.Its product has the characteristics that excellent high temperature resistant, anti-aging, high rigidity, lovely luster, glossiness are good, uses extensively
In tableware, electrical, amusement etc. and closely related product of living.
Current this material is mainly used for tableware, but non-refractory, and product anti-aging property is poor, and material is more crisp, easy
Fracture occurs and big product can not be made.Why will appear case above be because traditional handicraft molecular resin amount it is relatively low,
Resin cross-linked polymeric is inadequate, and filler particles degree is selected to cause material generally in 300 mesh or so using intermediate temperature curing agent mostly
Binding force is poor between material, and high temperature resistant anti-aging property is poor.
Invention content
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of preparation methods of high temperature resistant melamine molding compound.
The present invention is achieved through the following technical solutions：
A kind of preparation method of high temperature resistant melamine molding compound, it is characterised in that：Include the following steps：
(1) melamine resin is prepared：
By the formalin of 36.8% mass fraction, melamine with mass ratio 2.0 in vacuum environment:1 ratio adds
Enter in stainless steel cauldron, it is 8-9.5, Ran Houjia to adjust above-mentioned mixed solution pH value with the PHA conditioning agents of 10% mass fraction
Enter triethanolamine, reaction temperature rises to 90-98 DEG C of pyroreaction 120 minutes, and melamine resin is made.
(2) melamine mould particulate material is prepared
Melamine resin in step (1) and α-wood pulp cellulose are put into vacuum kneader, then added in high
Warm latent curative, PB diluents, mill base, zinc stearate, temperature are maintained at 40 DEG C of stirring 30min, are done after dispersion into baking oven
It is dry to obtain the flower-shaped melamine mould particulate material of 0.5-1.5cm rice krispies.
(3) melamine moulding feed powder is made
It weighs the flower-shaped melamine mould particulate material of rice krispies in step (2) and is packed into ball mill, add in Lacquer finish powder, optical brightener, calcium carbonate
Blending dispersion 10h is got product with 80 mesh screens sieve powder.
Wherein, PHA conditioning agents described in step (1) include the mixed of one or more of sodium bicarbonate, ammonium hydroxide, ethanol amine
It closes.
Wherein, 0.1- of the quality of the triethanolamine added in step (1) for formalin and melamine gross mass
1%, reaction temperature is 95 DEG C in step (1).
Wherein, it feeds intake in step (2) by following parts by weight：120-240 parts of melamine resin, α-wood pulp cellulose
20-40 parts, 2-3 parts of high temperature latent curative, 2-3 parts of PB diluents, 0.5-1 parts of mill base, 6-8 parts of zinc stearate.
Above-mentioned high temperature latent curative be aliphatic amine curing agent, specifically include sulfamic acid, ammonium sulfate, ammonium chloride,
The combination of one or more of monoethanolamine, diethanol amine, triethanolamine.
Above-mentioned PB diluents are acrylic acid amides.
Wherein, the parts by weight of the material of addition are respectively in step (3)：80-100 parts of melamine mould particulate material, Lacquer finish powder
10-15 parts, 1-3 parts of optical brightener, 5-8 parts of calcium carbonate.
Above-mentioned optical brightener is polyethylene wax.
Calcium carbonate whiteness is 96 in step (3), and granularity is 1250 mesh.
Lacquer finish powder is also known as melamine light-shielding resin, it be formaldehyde and melamine reaction into resin, drying ball milling into powder, use
When suppressing tableware, surface is spread, and increases the bright cleanliness in surface.
The beneficial effects of the invention are as follows：Melamine molding compound prepared by the present invention has high temperature resistant, anti-aging, high intensity, height
The advantages such as glossiness, lovely luster, free formaldehyde content be low, available for tableware, sanitary ware, amusement equipment, electric elements, vapour
In-car decorations etc. have filled up the blank of a melamine molding compound.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to embodiment to the technology of the present invention
Scheme further illustrates.
A kind of preparation method of high temperature resistant melamine molding compound, it is characterised in that：Include the following steps：(1) melamine is prepared
Amine-formaldehyde resins：
By the formalin of 36.8% mass fraction, melamine with mass ratio 2.0 in vacuum environment:1 ratio adds
Enter in stainless steel cauldron, it is 8-9.5, Ran Houjia to adjust above-mentioned mixed solution pH value with the PHA conditioning agents of 10% mass fraction
Enter triethanolamine, reaction temperature rises to 90-98 DEG C of pyroreaction 120 minutes, and melamine resin is made；
(2) melamine mould particulate material is prepared
Melamine resin in step (1) and α-wood pulp cellulose are put into vacuum kneader, then added in high
Warm latent curative, PB diluents, mill base, zinc stearate, temperature are maintained at 40 DEG C of stirring 30min, are done after dispersion into baking oven
It is dry to obtain the flower-shaped melamine mould particulate material of 0.5-1.5cm rice krispies；
(3) melamine moulding feed powder is made
It weighs the flower-shaped melamine mould particulate material of rice krispies in step (2) and is packed into ball mill, add in Lacquer finish powder, optical brightener, calcium carbonate
Blending dispersion 10h is got product with 80 mesh screens sieve powder.
PHA conditioning agents described in step (1) include the mixing of one or more of sodium bicarbonate, ammonium hydroxide, ethanol amine.
Reaction temperature is 95 DEG C in step (1).
Step feeds intake in (2) by following parts by weight：120-240 parts of melamine resin, α-wood pulp cellulose 20-40
Part, 2-3 parts of high temperature latent curative, 2-3 parts of PB diluents, 0.5-1 parts of mill base, 6-8 parts of zinc stearate.
High temperature latent curative is included in sulfamic acid, ammonium sulfate, ammonium chloride, monoethanolamine, diethanol amine, triethanolamine
One or more of combinations.
The PB diluents are acrylic acid amides.
The parts by weight of the material of addition are respectively in the step (3)：80-100 parts of melamine mould particulate material, Lacquer finish powder
10-15 parts, 1-3 parts of optical brightener, 5-8 parts of calcium carbonate.
Optical brightener is polyethylene wax.
Calcium carbonate whiteness is 96 in step (3), and granularity is 1250 mesh.
A kind of preparation method of high temperature resistant melamine molding compound provided by the invention is described in detail above.It is specific real
The explanation for applying example is merely used to help understand the method and its core concept of the present invention.It should be pointed out that for the art
For those of ordinary skill, without departing from the principle of the present invention, can also to the present invention some improvement and modification can also be carried out,
These improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (9)
1. a kind of preparation method of high temperature resistant melamine molding compound, it is characterised in that：Include the following steps：(1) melamine is prepared
Formaldehyde resin：
By the formalin of 36.8% mass fraction, melamine with mass ratio 2.0 in vacuum environment:1 ratio adds in not
It becomes rusty in steel reaction kettle, it is 8-9.5 to adjust above-mentioned mixed solution pH value with the PHA conditioning agents of 10% mass fraction, then adds in three
Ethanol amine, reaction temperature rise to 90-98 DEG C of pyroreaction 120 minutes, and melamine resin is made；
(2) melamine mould particulate material is prepared
Melamine resin in step (1) and α-wood pulp cellulose are put into vacuum kneader, high temperature is then added in and dives
Curing agent, PB diluents, mill base, zinc stearate are lied prostrate, temperature is maintained at 40 DEG C of stirring 30min, is obtained after dispersion into oven drying
To the flower-shaped melamine mould particulate material of 0.5-1.5cm rice krispies；
(3) melamine moulding feed powder is made
It weighs the flower-shaped melamine mould particulate material of rice krispies in step (2) and is packed into ball mill, add in Lacquer finish powder, optical brightener, calcium carbonate blending
Disperse 10h, got product with 80 mesh screens sieve powder.
2. the preparation method of high temperature resistant melamine molding compound according to claim 1, it is characterised in that：Described in step (1)
PHA conditioning agents include the mixing of one or more of sodium bicarbonate, ammonium hydroxide, ethanol amine.
3. the preparation method of high temperature resistant melamine molding compound according to claim 1, it is characterised in that：It is reacted in step (1)
Temperature is 95 DEG C.
4. the preparation method of high temperature resistant melamine molding compound according to claim 1, it is characterised in that：In step (2) press with
Lower parts by weight feed intake：120-240 parts of melamine resin, α -20-40 parts of wood pulp cellulose, high temperature latent curative 2-3
Part, 2-3 parts of PB diluents, 0.5-1 parts of mill base, 6-8 parts of zinc stearate.
5. the preparation method of high temperature resistant melamine molding compound according to claim 4, it is characterised in that：High temperature latent curative
Include the combination of one or more of sulfamic acid, ammonium sulfate, ammonium chloride, monoethanolamine, diethanol amine, triethanolamine.
6. the preparation method of high temperature resistant melamine molding compound according to claim 4, it is characterised in that：The PB diluents are
Acrylic acid amides.
7. the preparation method of high temperature resistant melamine molding compound according to claim 1, it is characterised in that：In the step (3)
The parts by weight of the material of addition are respectively：80-100 parts of melamine mould particulate material, 10-15 parts of Lacquer finish powder, 1-3 parts of optical brightener, carbon
Sour calcium 5-8 parts.
8. the preparation method of high temperature resistant melamine molding compound according to claim 7, it is characterised in that：Optical brightener is polyethylene
Wax.
9. the preparation method of high temperature resistant melamine molding compound according to claim 1, it is characterised in that：Carbonic acid in step (3)
Calcium whiteness is 96, and granularity is 1250 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388065.8A CN108178898A (en) | 2017-12-20 | 2017-12-20 | A kind of preparation method of high temperature resistant melamine molding compound |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711388065.8A CN108178898A (en) | 2017-12-20 | 2017-12-20 | A kind of preparation method of high temperature resistant melamine molding compound |
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| CN108178898A true CN108178898A (en) | 2018-06-19 |
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| CN201711388065.8A Withdrawn CN108178898A (en) | 2017-12-20 | 2017-12-20 | A kind of preparation method of high temperature resistant melamine molding compound |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585953A (en) * | 2009-06-23 | 2009-11-25 | 中国林业科学研究院林产化学工业研究所 | Method for preparing melamine formaldehyde molding compound |
| CN102604325A (en) * | 2012-03-14 | 2012-07-25 | 沙县宏盛塑料有限公司 | Tripolycyanamide formaldehyde moulding compound and preparation method thereof |
| CN105936738A (en) * | 2016-05-25 | 2016-09-14 | 山东国正化工有限公司 | Preparation method of high temperature and ageing resistant melamine molding compound |
-
2017
- 2017-12-20 CN CN201711388065.8A patent/CN108178898A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585953A (en) * | 2009-06-23 | 2009-11-25 | 中国林业科学研究院林产化学工业研究所 | Method for preparing melamine formaldehyde molding compound |
| CN102604325A (en) * | 2012-03-14 | 2012-07-25 | 沙县宏盛塑料有限公司 | Tripolycyanamide formaldehyde moulding compound and preparation method thereof |
| CN105936738A (en) * | 2016-05-25 | 2016-09-14 | 山东国正化工有限公司 | Preparation method of high temperature and ageing resistant melamine molding compound |
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Application publication date: 20180619 |