CN109517331A - Without ammonia high intensity phenolaldehyde moulding compound and preparation method thereof - Google Patents
Without ammonia high intensity phenolaldehyde moulding compound and preparation method thereof Download PDFInfo
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- CN109517331A CN109517331A CN201811458199.7A CN201811458199A CN109517331A CN 109517331 A CN109517331 A CN 109517331A CN 201811458199 A CN201811458199 A CN 201811458199A CN 109517331 A CN109517331 A CN 109517331A
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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
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/02—Flame or fire retardant/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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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Abstract
The present invention relates to plastics preparations, and in particular to a kind of no ammonia high intensity phenolaldehyde moulding compound and preparation method thereof.In parts by weight, no ammonia high intensity phenolaldehyde moulding compound includes 250-350 parts of phenolic resin, 550-650 parts of fillers, 10-30 parts of curing agent, 1-20 parts of coupling agents, 10-20 parts of release agents, 20-30 parts of toughener, 10-30 parts of organic solvents and 1-30 parts of low stress agent.This has good impact property, bending strength, good fluidity and flame retardant property without ammonia high intensity phenolaldehyde moulding compound, can not only reach the UL-94-V-0 rank requirement of halogen-free stibium-free, also meet good mouldability and operability in encapsulation process.
Description
Technical field
The present invention relates to plastics preparations, and in particular to a kind of no ammonia high intensity phenolaldehyde moulding compound and preparation method thereof.
Background technique
Phenolaldehyde moulding compound is since its excellent performance has the extensive purposes of comparison in electronic enterprises, due to general
The solidification of phenolic resin is by addition hexamethylenetetramine (methenamine), at a certain temperature, six in phenolaldehyde moulding compound
Methine tetramine decomposes to give off methylene and causes phenolic resin curing, simultaneously because hexamethylenetetramine is inevitable when decomposing
Ammonia can be released, although most of can vapor away, is also had in a small amount of formation free ammonia remaining and product, these free ammonias
Continuous release, generates to the irritant gas of human body, while also generating corrosion to the metal component of product, greatly reduces system
The safety and reliability of product.Client also has very high want while requiring to ammon amount, to the intensity of phenolaldehyde moulding compound
It asks.Therefore a kind of no ammonia high intensity phenolaldehyde moulding compound must be developed, to meet the particular/special requirement of industry.
And it is domestic at present also fewer to the research of no ammonia high intensity phenolaldehyde moulding compound, largely rest on experiment or small
The quality control of the level of batch production, product is relatively difficult, and processing performance is poor, and the indices property taken into account is poor, such as
The problems such as ammonia content is not up to standard, intensity is low, it is difficult to meet the requirement of each processing conditions and various performances.Meanwhile in the prior art
Majority produces granular materials using double screw extruder and pulverizer, but uses this method energy consumption height, material mixability not
It can guarantee.
Summary of the invention
The purpose of the present invention is to provide a kind of no ammonia high intensity phenolaldehyde moulding compound, phenolic molding compound envelope material reaches UL-94-
The performances such as the flame retardant property of V-0 rank, bending strength and impact strength, tensile strength are good, meanwhile, in process of production not
Toxic and harmful gas can be generated.
Another object of the present invention is to provide a kind of preparation method of no ammonia high intensity phenolaldehyde moulding compound, this method operations
Simply, and the quality without ammonia high intensity phenolaldehyde moulding compound that can ensure to be prepared, and a kind of new preparation process is provided.
The present invention solves its technical problem and adopts the following technical solutions to realize:
The present invention proposes a kind of no ammonia high intensity phenolaldehyde moulding compound, in parts by weight comprising 250-350 parts of phenolic aldehyde trees
Rouge, 550-650 part filler, 10-30 parts of curing agent, 1-20 parts of coupling agents, 10-20 parts of release agents, 20-30 parts of toughener, 10-30
Part organic solvent and 1-30 parts of low stress agent.
The present invention proposes a kind of preparation method of no ammonia high intensity phenolaldehyde moulding compound, comprising the following steps: by phenolic resin,
Heating melting mixing is carried out after filler, curing agent, coupling agent, release agent, toughener, organic solvent and low stress agent mixing then
Cooling is to form no ammonia high intensity phenolaldehyde moulding compound.
The beneficial effects of the present invention are: no ammonia high intensity phenolaldehyde moulding compound of the invention passes through phenolic resin, filler, solidification
Agent, coupling agent, release agent, toughener, organic solvent and low stress agent interact so that be prepared without ammonia high intensity phenol
Aldehyde moulding compound has good impact property, bending strength, good fluidity and flame retardant property, can not only reach halogen-free stibium-free
The requirement of UL-94-V-0 rank, also meets good mouldability and operability in encapsulation process.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
In the description of the present invention, it should be noted that term " first ", " second " etc. are only used for distinguishing description, without
It can be interpreted as indication or suggestion relative importance.
Illustrating without ammonia high intensity phenolaldehyde moulding compound and preparation method thereof to the embodiment of the present invention below.
A kind of no ammonia high intensity phenolaldehyde moulding compound, in parts by weight comprising 250-350 parts of phenolic resin, 550-650 parts
Filler, 10-30 part curing agent, 1-20 parts of coupling agents, 10-20 parts of release agents, 20-30 parts of toughener, 10-30 parts of organic solvents and
1-30 parts of low stress agent.Or in parts by weight, the no ammonia high intensity phenolaldehyde moulding compound includes the 280-300 parts of phenolic aldehyde trees
Rouge, the 600-620 parts of fillers, the 15-25 parts of curing agent, the 10-15 parts of coupling agents, the 13-15 parts of release agents,
The 25-28 parts of toughener, the 20-25 parts of organic solvents and the 10-25 parts of low stress agent.
It can be used for automobile without ammonia high intensity phenolaldehyde moulding compound by what above-mentioned substance interaction can guarantee to be prepared
Commutator can not discharge toxic and harmful gas when heated, meanwhile, flame retardant property is high, and heating is unlikely to deform, shrinking percentage
It is low, tensile strength is high.If the ratio of change above-mentioned substance is easy to cause the property without ammonia high intensity phenolaldehyde moulding compound being prepared
It can reduce.
Further, phenolic resin is resitol and/or resol.Resol be phenol or
Fortified phenol is with the reaction product of formaldehyde, and resitol is also known as bakelite B.Refer to that one-step method phenolic resin is solid
Locate f-intermediate stage phenolic resin during changing.The resin in this stage does not dissolve in alkaline aqueous solution, but can be in acetone or second
It is partly dissolved in alcohol.When with alcohol contact, it can be swollen but not dissolve, when heating softens.It is the centre of thermosetting resin curing process
Stage.The phenolaldehyde moulding compound that can guarantee to be prepared is shared using any one or two kinds in above two phenolic resin
Basic property may will affect the performance for the phenolaldehyde moulding compound being prepared if having changed the type of phenolic resin.Specifically
Ground, the resol that the present invention uses reach new material Co., Ltd (trade name PF-1156) or mountain purchased from Laiwu in Shandong province's profit
Eastern holy well new material limited liability company (trade name PF-8501), resitol are purchased from Shandong holy well purchased from phenolic resin 3
New material limited liability company (trade name PF-8063 and trade name PF-8063).
Further, filler is inorganic filler, preferably mica powder, kaolin, talcum powder, calcium carbonate, glass fibre and
Any one in diatom ooze or at least two.Inorganic filler can further promote the property of no ammonia high intensity phenolaldehyde moulding compound
Can, enhance its hardness, meanwhile, the manufacturing cost of no ammonia high intensity phenolaldehyde moulding compound can be reduced.
Further, curing agent is metal oxide and/or metal hydroxides；
It is preferred that the metal oxide is magnesia；The metal hydroxides is calcium hydroxide.
Enable to phenolic resin to carry out effectively crosslinking curing using the curing agent, and with other fillers, inorganic fibre
Dimension and the effects of release agent, guarantee to be prepared has good impact resistance, fire-retardant without ammonia high intensity phenolaldehyde moulding compound
Property and bending strength.
Further, coupling agent is silane compound, it is however preferred to have the silane of amino groups, most preferably kh-550,
The properties such as compression strength, the shear strength of phenolaldehyde moulding compound are effectively promoted as coupling agent using substance, and effectively promote filler
Dispersion, then further promoted phenolaldehyde moulding compound performance.
Further, release agent selects Brazil wax, polyethylene glycol, stearic acid, calcium stearate, appointing in zinc stearate
Anticipate one kind or at least two.Work between no ammonia high intensity phenolaldehyde moulding compound and mold can be reduced using above-mentioned release agent
With, then guarantee be prepared without ammonia high intensity phenolaldehyde moulding compound can rapidly and easily with mold separation, meanwhile, it is above-mentioned
Release agent has tensile strength well, reduces the loss during the preparation process such as filler, then guarantee to be prepared without ammonia
The performance of high-intensitive phenolaldehyde moulding compound.
Further, toughener be choice of powder rubber, polyvinyl butyral and nitrile rubber in any one or
Person at least two, can further promote bending strength, the tensile strength of phenolaldehyde moulding compound as toughener using above-mentioned substance
Etc. performances.
Further, organic solvent is alcohols material；Preferably monohydric alcohol；More preferably methanol, ethyl alcohol or isopropanol
In any one or at least two.It is uniform that each material mixing is more advantageous to using organic solvent, then guarantees phenolic aldehyde mould
The property of plastics.
Further, low stress agent can reduce stress, and low stress agent is silicone oil.
Further, in parts by weight, no ammonia high intensity phenolaldehyde moulding compound further includes 10-20 parts of colorants, and colorant can
Think natural pigment or artificial color, such as carbon black, iron oxide red, iron oxide yellow etc..
Further, the embodiment of the present invention also provides a kind of preparation method of no ammonia high intensity phenolaldehyde moulding compound, including with
Lower step:
After phenolic resin, filler, curing agent, coupling agent, release agent, toughener, organic solvent and low stress agent are mixed
Heating melting mixing is carried out then to cool down to be formed without ammonia high intensity phenolaldehyde moulding compound.
Specifically, by phenolic resin, filler, curing agent, coupling agent, release agent, toughener, organic solvent and low stress agent
It is mixed, then feeds the mixture into the mixing and blending machine for having been preheated (preheating temperature is 50-60 DEG C), heated
Melting, the temperature of melting are 90-100 DEG C, are then kept for smelting temperature 2-3 minutes, each substance is sufficiently melted and is gone forward side by side
Row mixing；Temperature is reduced to 30-40 DEG C from 90-100 DEG C in then 1 minute, then realizes cooling.Whole process is unanimously mixed
It closes in blender and carries out, the material of molten condition is cooled to solid, while the agitating paddle effect of mixing and blending machine in temperature-fall period
In solid, it is cut into granular materials of uniform size.
The present invention is prepared without ammonia high intensity phenolaldehyde moulding compound only with mixing, rather than the double helix of the prior art squeezes out simultaneously
It is cooling, it can guarantee the performance without ammonia high intensity phenolaldehyde moulding compound of its preparation.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
The present embodiment provides a kind of no ammonia high intensity phenolaldehyde moulding compounds comprising 298 parts of resol (149 parts of PF-
1156 and 149 parts of PF-8501), 595 parts of fillers (99 parts of talcum powder and 496 parts of glass fibres), 14 parts of Strong oxdiative calcium, 6 parts of oxidations
Magnesium, 7 parts of KH550,18 parts of release agents (10 parts of stearic acid, 4 parts of calcium stearates and 4 parts of polyethylene glycol), 28 parts of powdered rubbers, 23
Part ethyl alcohol and 1 part of silicone oil.
The present embodiment provides a kind of preparation methods of no ammonia high intensity phenolaldehyde moulding compound, comprising the following steps:
Stirring mixer is preheated to 60 DEG C first, and above-mentioned substance is mixed, is then added into and is stirred
In machine, and temperature is risen to 90 DEG C, stirs simultaneously melting 2 minutes, temperature is then reduced to 30 DEG C from 90 in 1 minute, and hold
Continuous stirring 4 minutes.
Embodiment 2-5
Embodiment 2-5 provide without ammonia high intensity phenolaldehyde moulding compound and embodiment 1 provide without ammonia high intensity phenolic molding compound
The constituent of material is almost the same, and difference is that specifically used substance is different, and ratio is also different.And what embodiment 2-5 was provided
The preparation method operation one without ammonia high intensity phenolaldehyde moulding compound of the preparation method and embodiment 1 of no ammonia high intensity phenolaldehyde moulding compound
It causes, difference is operating condition difference.
Embodiment 2
No ammonia high intensity phenolaldehyde moulding compound includes 250 parts of resols and resitol (120 parts of PF-1156
With 130 parts of PF-8063), 650 parts of fillers (50 parts of talcum powder, 50 parts of calcium carbonate and 550 parts of glass fibres), 10 parts of magnesia, 20
Part KH550,10 parts of Brazil waxs, 20 parts of toughener (15 parts of powdered rubbers and 5 parts of polyvinyl butyrals), 10 parts of methanol and
10 parts of silicone oil.Preheating temperature is 50 DEG C, and smelting temperature is 100 DEG C, and the time is 3 minutes, cool down in 1 minute by temperature from 100
DEG C 30 DEG C are reduced to, are stirred 5 minutes after cooling.
Embodiment 3
No ammonia high intensity phenolaldehyde moulding compound include 350 parts of resols and resitol (150 parts of PF-1156,
100 parts of PF-8064 and 100 part of PF-8063), 550 parts of fillers (100 mica powders, 100 parts of kaolin, 100 parts of calcium carbonate, 100 parts
Talcum powder, 100 parts of diatom oozes and 50 parts of glass fibres), 20 parts of calcium hydroxides, 10 parts of KH550,20 parts of zinc stearates, 30 parts it is poly-
Vinyl butyral, 30 parts of isopropanols, 15 parts of iron oxide yellows and 30 parts of silicone oil.Preheating temperature is 54 DEG C, and smelting temperature is 96 DEG C,
Time is 2.5 minutes, cools down as temperature is reduced to 39 DEG C from 96 DEG C in 1 minute, stirs 4 minutes after cooling.
Embodiment 4
No ammonia high intensity phenolaldehyde moulding compound includes 300 parts of resitol (100 parts of PF-8063 and 200 part of PF-
8064), 600 parts of glass fibres, 20 parts of magnesia, 15 parts of KH550,15 parts of Brazil waxs, 25 parts of nitrile rubbers, 20 parts of first
Alcohol, 20 parts of iron oxide reds and 25 parts of silicone oil.Preheating temperature is 57 DEG C, and smelting temperature is 92 DEG C, and the time is 2 minutes, and cooling down is 1 point
Temperature is reduced to 38 DEG C from 92 DEG C in clock, is stirred 5 minutes after cooling.
Embodiment 5
No ammonia high intensity phenolaldehyde moulding compound includes 320 parts of resols and resitol (120 parts of PF-1156
With 200 parts of PF-8064), 570 parts of fillers (70 parts of talcum powder, 200 parts of calcium carbonate and 300 parts of glass fibres), 18 parts of calcium hydroxides,
14 parts of KH550,17 parts of calcium stearates, 26 parts of powdered rubbers, 15 parts of isopropanols, 10 parts of carbon blacks and 15 parts of silicone oil.Preheating temperature is
52 DEG C, smelting temperature is 98 DEG C, and the time is 3 minutes, cools down as temperature is reduced to 40 DEG C from 98 DEG C in 1 minute, stirs after cooling
It mixes 4.5 minutes.
Comparative example 1: moulding compound is prepared according to the method that embodiment 1 provides, difference is the first rank phenolic aldehyde tree of embodiment 1
Rouge is 49 parts of PF-1156 and 49 part of PF-8501, filler are as follows: 199 parts of talcum powder and 596 parts of glass fibres.
Comparative example 2: moulding compound is prepared according to the method that embodiment 1 provides, difference is without low stress agent.
Comparative example 3: moulding compound is prepared according to the formula that embodiment 1 provides, difference is to be added after mixing each raw material
Melting 20 seconds in Twin screw extruder, smelting temperature are 120 DEG C, then squeeze out cooling.
Performance detection is carried out to the aldehyde moulding compound of embodiment 1-5 and comparative example 1-3.Wherein, ammon amount test uses GB/
T5474 standard testing；Insulation breakdown strength test uses GB1408.1 standard testing；Volume resistivity test is marked using GB1410
Quasi- test；Proof tracking test uses GB/T4207 standard testing；Bending strength test uses GB/T9341 standard testing；
Bending modulus test uses GB/T9341 standard testing；Impact strength test uses GB/T1043 standard testing；Notch shock is strong
Degree test uses GB/T1043 standard testing；Tensile strength test uses GB/T1040 standard testing；Molding shrinkage test is adopted
With JB/T6542 standard testing；Water absorption rate test uses GB1034 standard testing；Heat distortion temperature test uses GB1634 standard
Test；Flame resistance test uses UL-94 standard testing.Specific testing result is referring to table 1.
1 performance test results of table
According to table 1, the phenolaldehyde moulding compound that Examples 1 and 2 obtain either impact strength, notch impact strength,
The mechanical properties such as tensile strength are excellent in, and in terms of the electric properties such as insulation breakdown intensity, volume resistivity
It is very prominent.Comparative example 3 causes material that can not form due to production technology factor, just can not by mold injection at batten into
The detection of row correlated performance, so related data can not be embodied in table.
In conclusion no ammonia high intensity phenolaldehyde moulding compound of the invention by phenolic resin, filler, curing agent, coupling agent,
Release agent, toughener, organic solvent and low stress agent interact so that is be prepared has without ammonia high intensity phenolaldehyde moulding compound
There are good impact property, bending strength, good fluidity and flame retardant property, the UL-94-V-0 of halogen-free stibium-free can not only be reached
Rank requirement, also meets good mouldability and operability in encapsulation process.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of no ammonia high intensity phenolaldehyde moulding compound, which is characterized in that in parts by weight comprising 250-350 parts of phenolic resin,
550-650 parts of fillers, 10-30 parts of curing agent, 1-20 parts of coupling agents, 10-20 parts of release agents, 20-30 parts of toughener, 10-30 parts
Organic solvent and 1-30 parts of low stress agent.
2. no ammonia high intensity phenolaldehyde moulding compound according to claim 1, which is characterized in that in parts by weight, the no ammonia
High-intensitive phenolaldehyde moulding compound includes the 280-300 parts of phenolic resin, the 600-620 parts of fillers, the 15-25 parts of solidifications
Agent, the 10-15 parts of coupling agents, the 13-15 parts of release agents, the 25-28 parts of toughener, the 20-25 parts of organic solvents
With the 10-25 parts of low stress agent.
3. no ammonia high intensity phenolaldehyde moulding compound according to claim 1, which is characterized in that in parts by weight, the no ammonia
High-intensitive phenolaldehyde moulding compound further includes 10-20 parts of colorants.
4. no ammonia high intensity phenolaldehyde moulding compound according to claim 1, which is characterized in that the phenolic resin is second rank phenol
Urea formaldehyde and/or resol.
5. no ammonia high intensity phenolaldehyde moulding compound according to claim 1, which is characterized in that the filler is inorganic filler,
Preferably any one in mica powder, kaolin, talcum powder, calcium carbonate, glass fibre and diatom ooze or at least two.
6. no ammonia high intensity phenolaldehyde moulding compound according to claim 1, which is characterized in that the curing agent is metal oxidation
Object and/or metal hydroxides；
It is preferred that the metal oxide is magnesia；The metal hydroxides is calcium hydroxide.
7. no ammonia high intensity phenolaldehyde moulding compound according to claim 1, which is characterized in that the organic solvent is alcohols object
Matter；Preferably monohydric alcohol；More preferably any one in methanol, ethyl alcohol or isopropanol or at least two.
8. no ammonia high intensity phenolaldehyde moulding compound according to claim 1, which is characterized in that the release agent is selected from cohune
Any one in palmitic acid wax, polyethylene glycol, stearic acid, calcium stearate and zinc stearate or at least two.
9. a kind of preparation method of no ammonia high intensity phenolaldehyde moulding compound described in claim 1, which is characterized in that including following step
It is rapid: to be added after phenolic resin, filler, curing agent, coupling agent, release agent, toughener, organic solvent and low stress agent are mixed
Warm melting mixing then cools down to be formed without ammonia high intensity phenolaldehyde moulding compound.
10. preparation method according to claim 9, which is characterized in that the temperature of melting is 90-100 DEG C, and cooling is 1
Temperature is reduced to 30-40 DEG C from 90-100 DEG C in minute.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333995A (en) * | 2020-04-24 | 2020-06-26 | 上海欧亚合成材料股份有限公司 | High-temperature-resistant and high-strength ammonia-free phenolic moulding plastic and preparation method thereof |
| CN111363304A (en) * | 2020-04-23 | 2020-07-03 | 连云港英格达电子科技有限公司 | Ammonia-free glass fiber composite reinforced material for automobile motor parts and coil framework |
| CN111518362A (en) * | 2020-05-11 | 2020-08-11 | 武汉丰源智盛科技有限公司 | High-temperature flame-retardant glass fiber reinforced plastic and preparation method thereof |
| RU2741989C1 (en) * | 2020-04-21 | 2021-02-01 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Вятский государственный университет" | Acid-and-alkali polymer composition for protection of equipment and building structures |
| CN114031892A (en) * | 2021-12-08 | 2022-02-11 | 连云港英格达电子科技有限公司 | Special glass fiber composite reinforced material for high-end electric tool commutator and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2741989C1 (en) * | 2020-04-21 | 2021-02-01 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Вятский государственный университет" | Acid-and-alkali polymer composition for protection of equipment and building structures |
| CN111363304A (en) * | 2020-04-23 | 2020-07-03 | 连云港英格达电子科技有限公司 | Ammonia-free glass fiber composite reinforced material for automobile motor parts and coil framework |
| CN111333995A (en) * | 2020-04-24 | 2020-06-26 | 上海欧亚合成材料股份有限公司 | High-temperature-resistant and high-strength ammonia-free phenolic moulding plastic and preparation method thereof |
| CN111518362A (en) * | 2020-05-11 | 2020-08-11 | 武汉丰源智盛科技有限公司 | High-temperature flame-retardant glass fiber reinforced plastic and preparation method thereof |
| CN114031892A (en) * | 2021-12-08 | 2022-02-11 | 连云港英格达电子科技有限公司 | Special glass fiber composite reinforced material for high-end electric tool commutator and preparation method thereof |
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