CN110229296A - A kind of cardanol-aldehyde resin microballoon and its St*ber preparation method - Google Patents
A kind of cardanol-aldehyde resin microballoon and its St*ber preparation method Download PDFInfo
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- CN110229296A CN110229296A CN201910592130.1A CN201910592130A CN110229296A CN 110229296 A CN110229296 A CN 110229296A CN 201910592130 A CN201910592130 A CN 201910592130A CN 110229296 A CN110229296 A CN 110229296A
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G14/00—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00
- C08G14/02—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes
- C08G14/04—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols
- C08G14/06—Condensation polymers of aldehydes or ketones with two or more other monomers covered by at least two of the groups C08G8/00 - C08G12/00 of aldehydes with phenols and monomers containing hydrogen attached to nitrogen
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Abstract
The present invention discloses a kind of cardanol-aldehyde resin microballoon and its St ber preparation method.The present invention is characterized in that using certain proportion ethanol/water as mixed solvent, using ammonium hydroxide as catalyst, successively anacardol and formaldehyde are added in above-mentioned solution, hexamethylenetetramine is added after 24 h of aldol reaction, is further stirred evenly under the conditions of 30 DEG C, it is subsequently poured into reaction kettle, it sets reaction kettle and continues 24 h of polymerization reaction under conditions of 160~200 DEG C in baking oven, cooling, centrifugation, washing, is dried to obtain the micron-sized cardanol-aldehyde resin microballoon of particle size.Method of the invention is simple and easy, phenolic resin microspheres good sphericity, and size tunable also has many advantages, such as certain toughness.
Description
Technical field
The present invention relates to the microballoons in a kind of cardanol-aldehyde resin microballoon and its St ber preparation method to belong to a kind of function
High molecular material, and in particular to a kind of controllable cardanol-aldehyde resin microballoon of size and its St ber preparation method.
Background technique
Polymer microballoon refers to that partial size is in tens nanometer to the polymerization in hundreds of microns range scale with ball shape
Object particle.Due to polymer microballoon have small particle size and volume, big specific surface area, high specific surface energy feature, because
This can be applied to the occasions such as adsorption and desorption, chemical reaction and light scattering with very strong absorption property；In addition, poly- for some
It closes object microsphere surface and has different functionalities and active group, in microsphere surface grafting functional group and particularity can be assigned
Can, so that microballoon has several functions simultaneously, and shown in the fields such as electronics and microelectronics, bioengineering and information industry
Good application prospect.The synthetic method of polymer microballoon is broadly divided into emulsion polymerization, seeding polymerization, dispersin polymerization, precipitates and gather
Conjunction and suspension polymerisation etc., different methods can prepare various sizes of microballoon.St ber method is a kind of synthesis monodisperse silicon
The physico-chemical process of particle generally refers to generate nano silica by the way that tetraethoxysilane to be added in ethyl alcohol and ammonium hydroxide
The method of particle.
Anacardol (Cardanol) is the main component of cashew nut shell oil.Cashew nut shell oil is that the agricultural in cashew nut process is secondary
Product, by natural cashew nut shell through pyrolysis or supercritical CO2The methods of extraction is made, and color palm fibre, property are viscous.It is distributed when heating extraction
Smog is poisoned without obvious.1847, Stadeler reported cashew acid in natural cashew nut shell stoste containing about 90% and 10%
Cardol.Cashew nut shell oil will do it depickling during baking, and cashew acid is made to be converted to anacardol.Anacardol is the current feature of environmental protection
It can protrusion and biomass macromolecule raw material most cheap and easy to get.Phenolic hydroxyl group on anacardol phenyl ring has the property of phenols, waist
Fruit phenol is similar to phenol, has 3 active reflecting points, therefore the phenolic resin of height hardening can be generated with aldehydes, in addition cashew nut
Contain C15 unsaturation long-chain in the meta position of phenol, this unique texture, which makes anacardol both, has the feature of aromatic compound, resistance to height
Warm nature energy；Again with the feature of aliphatic compound, good flexibility, excellent hydrophobicity, low-permeability and from stemness；It makes
At a great difference of cardanol-aldehyde resin and phenolic resin in performance, the characteristic less than phenolic resin is presented,
If hardness is low, impact resistance, the performances such as oil-soluble is good, and small toxicity, wellability is excellent, and water resistance is fabulous, and overcome traditional phenolic aldehyde tree
The brittleness of lipid microspheres obtains the polymer microballoon with high value.It prepares phenolic resin microspheres with anacardol to be rarely reported, Lin Jin
Fire et al. is produced by natural anacardol with strong adsorption, high temperature resistant (257 DEG C, nitrogen atmosphere), chemically-resistant using suspension condensation methods
Larger particles (grade) microballoon [characteristic of Characterization of Porous Microspheres of Cardanol-aldehyde Resin Prepared by Suspension Polymerization, application of reagent
It learns, 2006,23 (4): 432-434].Document report with St ber method novolak resin microballoon is less, and Xu et al. is with 3-
Amino-phenol and formaldehyde are that monomer synthesizes 3- amino-phenol formaldehyde resin microballoon [A template free and
surfactant‒free method for high‒yield synthesis of highly monodisperse 3-
aminophenol‒formaldehyde resin and carbon nano/microspheres. Macromoleculs,
2013,46,140-145.], Qiao and Liu et al. people synthesize resorcinol-formaldehyde resin microballoon [Extension of The
Stöber method to the preparation of monodisperse resorcinol–formaldehyde
resin polymer and carbon spheres. Angew. Chem. Int. Ed., 2011, 50, 5947-
5951]。
The present invention is to be contained unsaturated olefin long-chain on natural products and structure based on one of monomer anacardol, adopted
The micron order cardanol-aldehyde resin microballoon of size uniformity, good sphericity is obtained with improved St ber method.Resorcinol and 3-
The acquisition environmental pollution of amino-phenol monomer is larger, and the resorcinol and 3- ammonia of synthesis reported in the literature are substituted using anacardol
Base phenol can reduce cost as phenol monomer, reduce pollution, and can assign and be brought by unsaturated olefin chain on the surface of the microsphere
Good toughness, excellent hydrophobicity, low-permeability and from specific functions such as stemness.
Summary of the invention
The purpose of the present invention is using ethanol/water as mixed solvent, under the catalysis of ammonium hydroxide, in hexamethylenetetramine and
In the presence of surfactant, using St ber method anacardol and formaldehyde carry out phenol formaldehyde condensation react to obtain cardanol-aldehyde resin it is micro-
Ball.The good sphericity of cardanol-aldehyde resin microballoon, size tunable and size are in micron order, micro-sphere contacts angle 136o, specific surface area
43595 cm2/ g, 450 DEG C of maximum decomposition temperature.
To achieve the purpose of the present invention, the present invention proposes a kind of cardanol-aldehyde resin microballoon and its St ber preparation method,
Used technical solution is ethanol/water as mixed solvent, under the catalysis of ammonium hydroxide, in hexamethylenetetramine and surface-active
In the presence of agent, anacardol carries out phenol formaldehyde condensation with formaldehyde and reacts to obtain particle size to be in that micron-sized cardanol-aldehyde resin is micro-
Ball, and size tunable.
A kind of cardanol-aldehyde resin microballoon of the present invention and its stober preparation method, including method in detail below,
Specific steps are as follows:
1) as mixed solvent, ammonium hydroxide is catalyst for ethyl alcohol or isopropanol/water, will after 0.5~1 h of mixing under the conditions of 30 DEG C
Anacardol and formaldehyde monomers are added in reaction vessel, and carry out phenolic aldehyde polycondensation reaction certain time in a reservoir；
2) a certain amount of hexamethylenetetramine is added in above-mentioned reaction system, at the uniform velocity stirs 24 h, then moves into reaction kettle,
It is placed in baking oven and further reacts certain time under conditions of 160~200 DEG C, it is cooling, it is centrifuged, washs, it is dry, obtain anacardol
Urea formaldehyde microballoon.
Ethyl alcohol in described cardanol-aldehyde resin microballoon and preparation method thereof: the volume ratio of water is 0.16~1.4, most ratio of greater inequality
For 0.4:1, the amount of ammonium hydroxide is 0.05~1.
Anacardol in described cardanol-aldehyde resin microballoon and preparation method thereof: the molar ratio of formaldehyde is 1:1.2~1.8,
Most ratio of greater inequality is 1:1.5.
In described cardanol-aldehyde resin microballoon and preparation method thereof the reaction time in 12~36 h, preferably in 24 h.
Anacardol and formaldehyde are 5~7 after phenol formaldehyde condensation reacts in described cardanol-aldehyde resin microballoon and preparation method thereof
Hexamethylenetetramine is added in h.
Anacardol in described cardanol-aldehyde resin microballoon and preparation method thereof: the mass ratio of hexamethylenetetramine is 1:
0.08~0.12, most ratio of greater inequality is 1:0.10.
At the uniform velocity mixing time is 24 h under the conditions of 30 DEG C in described cardanol-aldehyde resin microballoon and preparation method thereof,
Reaction temperature is 160~200 DEG C in baking oven, and peak optimization reaction temperature is 180 DEG C.
Water and ethyl alcohol alternating centrifugal, washing 4 times are used in described cardanol-aldehyde resin microballoon and preparation method thereof, 100
Dry 12 h under DEG C dry or super critical condition.
Specifically, the present invention adopts the following technical scheme:
A kind of St ber preparation method of cardanol-aldehyde resin microballoon, which comprises the steps of:
1) certain proportion ethyl alcohol or isopropanol/water are prepared as mixed solvent, ammonium hydroxide is catalyst, is mixed in reaction vessel
Then 0.5~1 h anacardol and formaldehyde monomers is added in reaction vessel, react certain time；
2) a certain amount of hexamethylenetetramine is added in the reaction vessel of step 1), at the uniform velocity stirs 24 h under the conditions of 30 DEG C,
It then moves into reaction kettle, and reaction kettle is placed in baking oven under conditions of 160~200 DEG C and further reacts certain time,
It is cooling, it is centrifuged, washs, it is dry, obtain cardanol-aldehyde resin microballoon.
Ethyl alcohol or isopropanol in the step 1): the volume ratio of water is 0.16~1.4:1；The amount of ammonium hydroxide is 0.05~1
mL。
Anacardol in the step 1): the molar ratio of formaldehyde is 1:1.2~1.8.
Reaction time in the step 1) in 12~36 h, preferably in 24 h.
Hexamethylenetetramine is added after reacting 5~7 h with formaldehyde in above-mentioned anacardol.
Above-mentioned anacardol: the mass ratio of hexamethylenetetramine is 1:0.08~0.12.
Add the 0.5-10% surfactant stearic acid of anacardol quality in the step 1) again after adding anacardol
Sodium, polyethers F127 or cetyl ammonium bromide.
12~36 h, preferably 24 h are reacted for 160~200 DEG C of ranges in temperature in the step 2).
Above-mentioned water and ethyl alcohol alternating centrifugal, washing 4 times, at 100 DEG C or dry 12 h of super critical condition.
Cardanol-aldehyde resin microballoon made from the above-mentioned St ber preparation method of the present invention.
Cardanol-aldehyde resin microballoon and its St ber preparation method provided by the invention, the advantage is that: phenol, isophthalic two
The phenolic resin microspheres dosage of phenol is larger, at high cost, environmental pollution is larger, replaces phenol, resorcinol with natural anacardol
Cost can be reduced, pollution is reduced；Anacardol has 3 active reflecting points as phenol.Therefore anacardol can be raw with aldehydes
At the phenolic resin of height hardening；Anacardol and phenol are the difference is that the side of alkenyl containing C15 in hydroxyl meta position on phenyl ring
Chain, cardanol-aldehyde resin are presented than phenolic resin excellent characteristics, and such as toughness height, impact resistance, oil-soluble is good, small toxicity, leaching
Lubricant nature is excellent, and water resistance is fabulous etc..Improved St ber method can control feed ratio, sphericity be intact, particle size compared with
For it is uniform and controllable, have thermal stability and hydrophobic micron order cardanol-aldehyde resin microballoon.
Detailed description of the invention
Fig. 1 is the Fourier transform infrared spectroscopy (FT-IR) of cardanol-aldehyde resin microballoon.
Fig. 2 is field emission electron flying-spot microscope (FE-SEM) picture of cardanol-aldehyde resin microballoon.
Specific embodiment
The present invention does not limit to the specific embodiment of act set forth below, is below concrete scheme.
Embodiment 1
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 1 h of magnetic agitation under the conditions of 30 DEG C is slowly added dropwise 0.50 g anacardol, is slowly added dropwise after being dispersed with stirring 30 min
0.05 g hexamethylenetetramine is added after stirring 6 h in 0.18 mL formaldehyde, continues to pour into reaction kettle after stirring 18 h, then set
In baking oven, 24 h are reacted under the conditions of 180 DEG C, after taking out cooling, are washed with distilled water and dehydrated alcohol alternating centrifugal and are repeated 4
It is secondary, it then dries, obtains micron order cardanol-aldehyde resin microballoon.The Fourier transform infrared spectroscopy (FT-IR) of obtained microballoon
See Fig. 1；The good sphericity of microballoon, size is more uniform, and for partial size in 0.5~1.5 μ m, apparent form is as shown in Figure 2.
Embodiment 2
Distilled water 24mL, dehydrated alcohol 4mL are taken, ammonium hydroxide 0.1mL is added in serum bottle, serum bottle is put into water-bath,
Then 1 h of magnetic agitation under the conditions of 30 DEG C is slowly added dropwise 0.50g anacardol, 0.18mL first is slowly added dropwise after dispersion stirring 30min
0.05 g hexamethylenetetramine is added after stirring 6 h in aldehyde, continues to pour into reaction kettle after stirring 18 h, be subsequently placed in baking oven,
It is reacted under the conditions of 180 DEG C for 24 hours, after taking out cooling, is washed and be repeated 4 times with distilled water and dehydrated alcohol alternating centrifugal, then dried
It is dry.Obtain micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, but size is different.
Embodiment 3
Distilled water 24mL, dehydrated alcohol 4mL are taken, ammonium hydroxide 0.5mL is added in serum bottle, serum bottle is put into water-bath,
Then 1 h of magnetic agitation under the conditions of 30 DEG C is slowly added dropwise 0.50g anacardol, 0.18mL first is slowly added dropwise after dispersion stirring 30min
0.05 g hexamethylenetetramine is added after stirring 6 h in aldehyde, continues to pour into reaction kettle after stirring 18 h, be subsequently placed in baking oven,
It is reacted under the conditions of 180 DEG C for 24 hours, after taking out cooling, is washed and be repeated 4 times with distilled water and dehydrated alcohol alternating centrifugal, then dried
It is dry.Obtain micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, but size is different.
Embodiment 4
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 1 h of magnetic agitation under the conditions of 30 DEG C is slowly added dropwise 0.50 g anacardol, is slowly added dropwise after 30 min of dispersion stirring
0.05 g hexamethylenetetramine is added after stirring 5 h in 0.18 mL formaldehyde, continues to pour into reaction kettle after stirring 19 h, then set
In baking oven, 24 h are reacted under the conditions of 180 DEG C, after taking out cooling, are washed with distilled water and dehydrated alcohol alternating centrifugal and are repeated 4
It is secondary, it then dries, obtains micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, size are more uniform.
Embodiment 5
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 1 h of magnetic agitation under the conditions of 30 DEG C is slowly added dropwise 0.50 g anacardol, is slowly added dropwise after 30 min of dispersion stirring
0.06 g hexamethylenetetramine is added after stirring 6 h in 0.18 mL formaldehyde, continues to be put into reaction kettle after stirring 18 h, then set
In baking oven, 24 h are reacted under the conditions of 180 DEG C, after taking out cooling, are washed with distilled water and dehydrated alcohol alternating centrifugal and are repeated 4
It is secondary, it then dries, obtains micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, size are different.
Embodiment 6
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 0.50 g anacardol is slowly added dropwise in 1 h of magnetic agitation under the conditions of 30 DEG C, be slowly added dropwise 0.18 after stirring 30 min
0.06 g hexamethylenetetramine is added after stirring 6 h in mL formaldehyde, continues to pour into reaction kettle after stirring 18 h, is subsequently placed in baking
In case, 24 h are reacted under the conditions of 200 DEG C, after taking out cooling, are washed and are repeated 4 times with distilled water and dehydrated alcohol alternating centrifugal,
Then it dries, obtains micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, size are more uniform.
Embodiment 7
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 1 h of magnetic agitation under the conditions of 30 DEG C is slowly added dropwise 0.50 g anacardol, is slowly added dropwise after 30 min of dispersion stirring
0.06 g hexamethylenetetramine is added after stirring 6 h in 0.18 mL formaldehyde, continues to be put into reaction kettle after stirring 18 h, then set
In baking oven, 24 h are reacted under the conditions of 160 DEG C, after taking out cooling, are washed with distilled water and dehydrated alcohol alternating centrifugal and are repeated 4
It is secondary, it then dries, obtains micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, size is more uniform, contact angle
136 º。
Embodiment 8
20 mL of distilled water, 8 mL of isopropanol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath,
1 h of magnetic agitation under the conditions of 30 DEG C, is then slowly added dropwise 0.50 g anacardol, is slowly added dropwise 0.18 after being dispersed with stirring 30 min
0.05 g hexamethylenetetramine is added after stirring 6 h in mL formaldehyde, continues to pour into reaction kettle after stirring 18 h, is subsequently placed in baking
In case, 24 h are reacted under the conditions of 180 DEG C, after taking out cooling, are washed and are repeated 4 times with distilled water and dehydrated alcohol alternating centrifugal,
Then it dries, obtains micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, size are more uniform.
Embodiment 9
24 mL of distilled water, 4 mL of isopropanol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath,
Then 1 h of magnetic agitation under the conditions of 30 DEG C is slowly added dropwise 0.50 g anacardol, is slowly added dropwise 0.18 after dispersion stirring 30min
0.05 g hexamethylenetetramine is added after stirring 6 h in mL formaldehyde, continues to pour into reaction kettle after stirring 18 h, is subsequently placed in baking
In case, 24 h are reacted under the conditions of 180 DEG C, after taking out cooling, are washed and are repeated 4 times with distilled water and dehydrated alcohol alternating centrifugal,
Then it dries.Obtain micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, but size is different.
Embodiment 10
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 0.50 g anacardol and 0.005 g odium stearate, dispersion stirring is slowly added dropwise in 1 h of magnetic agitation under the conditions of 30 DEG C
0.18 mL formaldehyde is slowly added dropwise after 30 min, 0.06 g hexamethylenetetramine is added after stirring 6 h, continues to put after stirring 18 h
Enter in reaction kettle, be subsequently placed in baking oven, 24 h are reacted under the conditions of 160 DEG C, after taking out cooling, with distilled water and dehydrated alcohol
Alternating centrifugal washing is repeated 4 times, and is then dried, is obtained micron order cardanol-aldehyde resin microballoon.Obtained microballoon good sphericity, ruler
Very little more uniform, yield is high.
Embodiment 11
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 0.50 g anacardol and 0.0075 g cetyl ammonium bromide is slowly added dropwise in 1 h of magnetic agitation under the conditions of 30 DEG C,
0.18 mL formaldehyde is slowly added dropwise after 30 min of dispersion stirring, 0.06 g hexamethylenetetramine is added after stirring 6 h, continues to stir
It is put into reaction kettle, is subsequently placed in baking oven after 18 h, 24 h are reacted under the conditions of 160 DEG C, after taking out cooling, use distilled water
It is repeated 4 times with the washing of dehydrated alcohol alternating centrifugal, then super critical condition is dry, obtains micron order cardanol-aldehyde resin microballoon.
Obtained microballoon good sphericity, size is more uniform, 450 DEG C of maximum decomposition temperature.
Embodiment 12
20 mL of distilled water, 8 mL of dehydrated alcohol are taken, 0.1 mL of ammonium hydroxide is added in serum bottle, serum bottle is put into water-bath
In, then 0.50 g anacardol and 0.005 g polyethers F127 is slowly added dropwise in 1 h of magnetic agitation under the conditions of 30 DEG C, dispersion is stirred
0.18 mL formaldehyde is slowly added dropwise after mixing 30 min, 0.06 g hexamethylenetetramine is added after stirring 6 h, continues after stirring 18 h
Be put into reaction kettle, be subsequently placed in baking oven, react 24 h under the conditions of 160 DEG C, take out it is cooling after, with distilled water and anhydrous
The washing of ethyl alcohol alternating centrifugal is repeated 4 times, and then super critical condition is dry, obtains micron order cardanol-aldehyde resin microballoon.It obtains
Microballoon good sphericity, size is more uniform, 450 DEG C of maximum decomposition temperature.
Claims (10)
1. a kind of St ber preparation method of cardanol-aldehyde resin microballoon, which comprises the steps of:
1) certain proportion ethyl alcohol or isopropanol/water are prepared as mixed solvent, ammonium hydroxide is catalyst, is mixed in reaction vessel
Then 0.5~1 h anacardol and formaldehyde monomers is added in reaction vessel, react certain time；
2) a certain amount of hexamethylenetetramine is added in the reaction vessel of step 1), at the uniform velocity stirs 24 h under the conditions of 30 DEG C,
It then moves into reaction kettle, and reaction kettle is placed in baking oven under conditions of 160~200 DEG C and further reacts certain time,
It is cooling, it is centrifuged, washs, it is dry, obtain cardanol-aldehyde resin microballoon.
2. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that described
Ethyl alcohol or isopropanol in step 1): the volume ratio of water is 0.16~1.4:1；The amount of ammonium hydroxide is 0.05~1 mL.
3. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that described
Anacardol in step 1): the molar ratio of formaldehyde is 1:1.2~1.8.
4. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that described
Reaction time in step 1) in 12~36 h, preferably in 24 h.
5. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that anacardol
Hexamethylenetetramine is added after reacting 5~7 h with formaldehyde.
6. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that cashew nut
Phenol: the mass ratio of hexamethylenetetramine is 1:0.08~0.12.
7. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that described
Add 0.5-10% surfactant odium stearate, the polyethers F127 or ten of anacardol quality in step 1) again after adding anacardol
Six alkyl bromination ammoniums.
8. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that described
12~36 h, preferably 24 h are reacted for 160~200 DEG C of ranges in temperature in step 2.
9. the St ber preparation method of the cardanol-aldehyde resin microballoon according to claim 1, which is characterized in that with water with
Ethyl alcohol alternating centrifugal, washing 4 times, at 100 DEG C or dry 12 h of super critical condition.
10. cardanol-aldehyde resin microballoon made from any St ber preparation method of claim 1-9.
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