CN1038458A - The preparation method of glass fiber reinforcement epoxy molding compound - Google Patents
The preparation method of glass fiber reinforcement epoxy molding compound Download PDFInfo
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- CN1038458A CN1038458A CN 88105532 CN88105532A CN1038458A CN 1038458 A CN1038458 A CN 1038458A CN 88105532 CN88105532 CN 88105532 CN 88105532 A CN88105532 A CN 88105532A CN 1038458 A CN1038458 A CN 1038458A
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Abstract
The invention belongs to the epoxy mold preparation method for material.The invention provides the prescription and the preparation method of glass fiber reinforcement epoxy molding compound.Resins, epoxy and solidifying agent, filler, releasing agent, tinting material are through kneading, and filler adopts silicon powder and substep to add, and adds short glass fiber and strengthens, and makes solidifying agent with the low melting eutectics mixed aromatic diamine, through ripening at low temperature.Easy and simple to handle, the steady quality of the inventive method, basic three-waste free pollution.The moulding compound that this law makes is the well behaved type materials of low-voltage apparatus such as encapsulation valve control electromagnet.
Description
The invention belongs to the preparation method of epoxy molding plastic.
Relevant document [US 3,144,421] has once been reported the preparation by glass fiber reinforcement epoxy class moulding compound.But it adopts lime carbonate, barium sulfate is filler, and the physical strength of product is still not enough, to the specification requirement not specified (NS) of glass fibre, and not mentioned employing maturing process.
The purpose of this invention is to provide a kind of capsulation material that is applicable to low-voltage apparatuses such as valve control electromagnet, providing this is filler with the silicon powder, with the prescription and the preparation method of glass fibre enhanced epoxy molding plastic.
Glass fiber reinforcement epoxy molding compound is a kind of insulating material, is thermoset reinforcd plastic.The inventive method is exactly the prescription and the preparation method of this matrix material.
The prescription of the existing two kinds of models of this moulding compound.The one, coventional type, the 2nd, flame retardant type.
One, coventional type prescription:
100 parts of bisphenol A type epoxy resins.
Solidifying agent low melting eutectics mixed aromatic diamine consumption is 10～17% of a Resins, epoxy total amount, mphenylenediamine and 4 wherein, 4 '-ratio of diaminodiphenyl-methane is 4～8: 6～2, the short glass fiber consumption accounts for 1～15% of moulding compound prescription total amount, the silicon powder consumption accounts for 50～75% of moulding compound prescription total amount, and stearic acid dosage accounts for 0.25～0.45% of moulding compound prescription total amount.An amount of titanium dioxide, dyestuff etc.
Used short glass fiber is the alkali-free short glass fiber, does the surface through soluble epoxide and handles, and length is 25～45mm, and diameter is 5～10 μ.
Used silicon powder fineness is 300～1000 orders.
Two, flame retardant type prescription.
Brominated content of epoxy resin accounts for 6～50% of the total consumption of Resins, epoxy.
The epoxide diluent consumption is 0.5～2.5% of the total consumption of Resins, epoxy.
The antimonous oxide consumption is 1.5～8% of the total consumption of Resins, epoxy.
All the other same coventional types of filling a prescription.
Brominated Resins, epoxy can be EX-20, EX-40, EX-48 and brominated thinner JX-28.
Epoxide diluent can be the Racemic glycidol ethers, for example the 921#(benzyl glycidyl ether), the 669#(diglycidyl ether of ethylene glycol), the 630#(polyglycidyl ether).
The preparation method:
1, in advance with the silicon powder oven dry, water content is reduced to below 0.3%.
2, in advance with mphenylenediamine, 4,4 '-diaminodiphenyl-methane presses formula ratio heating consolute, is the low melting eutectics mixed aromatic diamine.
3, if the fire-retardant moulding mixture of preparation is pressed the formula ratio consolute with brominated Resins, epoxy and epoxide diluent in advance.
4, Resins, epoxy (count prescription total amount) and the formula ratio stearic acid consolute in advance that takes a morsel.
5, in kneading machine, press formula ratio and drop into Resins, epoxy, drop into epoxy-stearic acid consolute thing, if during the fire-retardant moulding mixture of preparation, drop into antimonous oxide again, drop into tinting material, substep drops into silicon powder kneading down, drop into glass fibre, till mixing, amount to and kneaded about 1.5～2.0 hours.
6, if temperature of charge in the measuring engine greater than 36 ℃, then leads to water coolant in the kneading machine chuck.
7, drop into after the mixed aromatic diamine, the temperature of charge of kneading control is no more than 36 ℃.Kneaded 0.5～1 hour.
8, whole when kneading, running check has or not the not dead angle of mixing.If any, then need shut down shovel and scrape mixing.
9, discharging from kneading machine was delivered to two roller machine and is rolled into strip, 25 ℃ of following slakings 20～24 hours.Be ground into fragmental through pulverizer, finished product packing.
The advantage of the inventive method is that raw material is easy to get, and technical process is simple, steady quality, good reproducibility, three-waste free pollution substantially in batches.The moulding compound that makes with the inventive method is the type material of low-voltage apparatus such as encapsulation valve control electromagnet, and this material is easy to use, and release property is good, and moulding is rapid, and resistance to cracking is good, and electrical insulation properties is good, and fire-retardant moulding mixture has from putting out effect.With the electro-magnet of this plastic cement encapsulation, aesthetic in appearance, mounting or dismounting are convenient, reliable operation, and long service life, commutation is fast, and noise is little, and energy consumption is low, and thermal diffusivity, protective, the globality of electro-magnet are greatly improved.
Claims (8)
1, a kind of Resins, epoxy and solidifying agent, filler, releasing agent, tinting material prepare the method for glass fiber reinforcement epoxy molding compound through kneading, feature of the present invention is that solidifying agent adopts the low melting eutectics mixed aromatic diamine, filler adopts silicon powder and substep to add, adding short glass fiber strengthens, the temperature of charge control of kneading after solidifying agent adds is no more than 36 ℃, kneading, material rolls into strip of sheet through twin-roll machine behind the mixing, passes through ripening at low temperature again, is ground into fragmental; Its prescription is:
100 parts of bisphenol A type epoxy resins,
Low melting eutectics mixed aromatic diamine consumption is 10～17% of a Resins, epoxy total amount,
Wherein mphenylenediamine and 4,4 '-ratio of diaminodiphenyl-methane is 4～8: 6: 2,
The short glass fiber consumption accounts for 1～15% of moulding compound prescription total amount,
The silicon powder consumption accounts for 50～70% of moulding compound total amount,
0.25～0.45% of stearic acid dosage point moulding compound total amount,
An amount of titanium dioxide, dyestuff etc.
2, preparation method as claimed in claim 1, the part of Resins, epoxy is used brominated Resins, epoxy and epoxide diluent instead in it is characterized in that filling a prescription, and adds antimonous oxide, and its prescription is:
Brominated content of epoxy resin accounts for 6～50% of the total consumption of Resins, epoxy,
The epoxide diluent consumption is 0.5～2.5% of the total consumption of Resins, epoxy,
The antimonous oxide consumption is 1.5～8% of the total consumption of Resins, epoxy,
Rest materials is described with claim 1 in the prescription.
3, preparation method as claimed in claim 1 or 2 is characterized in that used low melting eutectics mixed aromatic diamine is with mphenylenediamine, 4,4 '-diaminodiphenyl-methane heats consolute in advance by formula ratio.
4, preparation method as claimed in claim 1 or 2 is characterized in that used short glass fiber is the alkali-free short glass fiber, does the surface through soluble epoxide and handles, and length is 25～45mm, and diameter is 5～10 μ.
5, preparation method as claimed in claim 1 or 2 is characterized in that used silicon powder fineness is 300～1000 orders, and water content is below 0.3%.
6, preparation method as claimed in claim 1 or 2 is characterized in that the slaking condition is 25 ℃ of following slakings 20～24 hours.
7, preparation method as claimed in claim 2, the brominated Resins, epoxy in it is characterized in that filling a prescription can be EX-20, EX-40, EX-48 and brominated thinner JX-28.
8, preparation method as claimed in claim 2, the epoxide diluent in it is characterized in that filling a prescription can be the Racemic glycidol ethers, as the 921#(benzyl glycidyl ether), the 669#(diglycidyl ether of ethylene glycol), the 630#(polyglycidyl ether).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105532 CN1031830C (en) | 1988-06-11 | 1988-06-11 | Method of manufacturing moulded glass fibre-reinforced epoxy plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105532 CN1031830C (en) | 1988-06-11 | 1988-06-11 | Method of manufacturing moulded glass fibre-reinforced epoxy plastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1038458A true CN1038458A (en) | 1990-01-03 |
| CN1031830C CN1031830C (en) | 1996-05-22 |
Family
ID=4833714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105532 Expired - Fee Related CN1031830C (en) | 1988-06-11 | 1988-06-11 | Method of manufacturing moulded glass fibre-reinforced epoxy plastics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031830C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318790C (en) * | 2005-02-04 | 2007-05-30 | 连云港中复连众复合材料集团有限公司 | High-pressure glass fibre reinforced plastic pipe and producing technology thereof |
| CN101885650A (en) * | 2010-08-09 | 2010-11-17 | 南阳市神威民爆有限公司 | Composite oil phase for powdery ammonium nitrate explosive |
| CN101659798B (en) * | 2009-09-29 | 2011-02-09 | 包头市山晟新能源有限责任公司 | Insulating coatings, device for purifying polysilicon, method for ionization resistance and short circuit resistance and electronic equipment |
| CN104961387A (en) * | 2015-06-10 | 2015-10-07 | 北京理工大学 | Thermal expansion stone cracking agent |
| CN105086374A (en) * | 2015-08-10 | 2015-11-25 | 南通德瑞森复合材料有限公司 | Normal-temperature impregnating resin for fiber reinforced plastic grids |
| CN109851993A (en) * | 2018-12-14 | 2019-06-07 | 安徽环嘉天一再生资源有限公司 | A kind of preparation method of anti-radiation plastic plate |
| WO2020252681A1 (en) * | 2019-06-19 | 2020-12-24 | Dow Global Technologies Llc | Flame retardant composition |
-
1988
- 1988-06-11 CN CN 88105532 patent/CN1031830C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318790C (en) * | 2005-02-04 | 2007-05-30 | 连云港中复连众复合材料集团有限公司 | High-pressure glass fibre reinforced plastic pipe and producing technology thereof |
| CN101659798B (en) * | 2009-09-29 | 2011-02-09 | 包头市山晟新能源有限责任公司 | Insulating coatings, device for purifying polysilicon, method for ionization resistance and short circuit resistance and electronic equipment |
| CN101885650A (en) * | 2010-08-09 | 2010-11-17 | 南阳市神威民爆有限公司 | Composite oil phase for powdery ammonium nitrate explosive |
| CN104961387A (en) * | 2015-06-10 | 2015-10-07 | 北京理工大学 | Thermal expansion stone cracking agent |
| CN104961387B (en) * | 2015-06-10 | 2017-01-25 | 北京理工大学 | Thermal expansion stone cracking agent |
| CN105086374A (en) * | 2015-08-10 | 2015-11-25 | 南通德瑞森复合材料有限公司 | Normal-temperature impregnating resin for fiber reinforced plastic grids |
| CN109851993A (en) * | 2018-12-14 | 2019-06-07 | 安徽环嘉天一再生资源有限公司 | A kind of preparation method of anti-radiation plastic plate |
| WO2020252681A1 (en) * | 2019-06-19 | 2020-12-24 | Dow Global Technologies Llc | Flame retardant composition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1031830C (en) | 1996-05-22 |
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