CN110157147A - A kind of recycle and reuse method of phenolaldehyde moulding compound waste material - Google Patents
A kind of recycle and reuse method of phenolaldehyde moulding compound waste material Download PDFInfo
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- CN110157147A CN110157147A CN201910449298.7A CN201910449298A CN110157147A CN 110157147 A CN110157147 A CN 110157147A CN 201910449298 A CN201910449298 A CN 201910449298A CN 110157147 A CN110157147 A CN 110157147A
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- moulding compound
- phenolaldehyde moulding
- waste material
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- compound waste
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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
Abstract
The present invention relates to waste recoveries to utilize field, more particularly to a kind of recycle and reuse method of phenolaldehyde moulding compound waste material, phenolaldehyde moulding compound waste material is used to produce phenolaldehyde moulding compound, the phenolaldehyde moulding compound includes that following parts by weight material is prepared: the phenolaldehyde moulding compound waste material of surface coating modification；Phenolic resin；Reinforcing fiber；Inorganic filler；Curing agent；Auxiliary agent；The above material is uniformly mixed, the material mixed is sent into open mill or extruder, obtains phenolaldehyde moulding compound after over-mastication, tabletting, cooling, crushing.The beneficial effects of the present invention are: the present invention obtains the phenolaldehyde moulding compound waste material of surface coating modification as raw material and phenolic resin wastewater, formaldehyde and catalyst reaction using phenolaldehyde moulding compound waste material, proportion remodeling is carried out again into phenolic molding compound material products, finished product obtained has good mechanical performance, the utilization rate for improving resource, reduces environmental pollution.
Description
Technical field
The present invention relates to waste recoveries to utilize field, and in particular to a kind of recycle and reuse side of phenolaldehyde moulding compound waste material
Method.
Background technique
Phenolaldehyde moulding compound (being commonly called as " phenolic moulding powder ") is plastics with the longest history in the world, is using phenolic resin as substrate
The general name of plastics, one kind of most important thermosetting plastics.Because it is with high mechanical strength, tough and hard wear resistant, dimensionally stable, corrosion resistant
Erosion, the excellent properties such as electrical isolation, so for manufacturing electric appliance and manufactured goods etc..With the growth of phenolaldehyde moulding compound yield,
Problems are also to come one after another, and wherein greatest problem is exactly the processing of the defect ware and leftover pieces (being referred to as dead meal) of its product
Problem, according to data, phenoplasts process will generate the substandard products of 5%-7%, and usual phenolaldehyde moulding compound is after molding
The processing method of defect ware and leftover pieces is to bury or burn.This method is buried to need to consume at a large amount of fund
Reason, and will cause long-term pollution to environment；Burning needs to consume more fuel, is also easy to produce more flue dust and harmful gas
Body, thus above two traditional treatment method from fund or it is new it is energy-saving be all infeasible, and phenolic resin is producing
Waste water can be generated in the process, mainly containing the phenol formaldehyde (PF) of high concentration in waste water, directly processing not only needs higher sewage treatment
Cost and phenol in wastewater formaldehyde is made to cause to waste, therefore finds and a kind of can handle dead meal and can also handle at the recycling of waste water
Reason method is imperative.
The Chinese invention patent of Patent No. ZL03136165.X discloses a kind of recovery method of phenolaldehyde moulding compound waste material,
Directly by the phenolaldehyde moulding compound waste material after broken refinement and plastic emitting cooling granulation after raw material Hybrid Heating.Publication No.
The Chinese invention patent of CN201310112306.1 discloses a kind of method that phenolaldehyde moulding compound finished product thin powder recovery utilizes, and is returning
It receives to be added in screw extruder after phenolic resin, glass fibre mixed at high speed are added in the phenolaldehyde moulding compound finished product fine powder utilized and squeeze
Powder out carries out tabletting cooling, crushing and screening.The Chinese invention patent of Publication No. CN201710035773.7 discloses one kind
The crushed material of phenoplasts waste material and curing agent, coupling agent, auxiliary agent are put into mixing plant by the recovery method of phenoplasts waste material
Cooling and demolding is moved into mold after hot-pressing processing after middle mixing to get phenolic aldehyde product is arrived.These disclosed methods are all by phenolic aldehyde
Plastic waste is broken to be directly mixed into after mould directly as finished product use with each raw material, can only recycle phenolaldehyde moulding compound waste material, no
It can solve in phenolic resin production in waste water and waste water the problem of raw materials recovery.
Summary of the invention
The technical problems to be solved by the present invention are: the purpose of the present invention is to provide in a kind of production of solution phenolic resin
The recycle and reuse method of phenolaldehyde moulding compound waste material in waste water and waste water the technical issues of raw materials recovery.
The present invention provides a kind of recycle and reuse method of phenolaldehyde moulding compound waste material, and phenolaldehyde moulding compound waste material is used to give birth to
Phenolaldehyde moulding compound is produced, the phenolaldehyde moulding compound includes that following parts by weight material is prepared:
The above material is uniformly mixed, the material mixed is sent into open mill or extruder, through over-mastication, tabletting,
Phenolaldehyde moulding compound is obtained after cooling, crushing；
The phenolaldehyde moulding compound waste material of the surface coating modification the preparation method is as follows:
(1) phenolaldehyde moulding compound waste material is crushed, obtains crushed material；
(2) reaction kettle is added in phenolic resin wastewater, crushed material, formaldehyde, catalyst；
(3) it stirs and is warming up to 90-100 DEG C, be stirred to react 2-12h；
(4) 1-10h is staticly settled, releases resin from reactor bottom；
(5) resin that bottom releases obtains surface coating modification crushed material, the i.e. phenol of surface coating modification after dehydration
Aldehyde moulding compound waste material.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the phenolic resin wastewater are as follows: phenol
The waste water of urea formaldehyde production dehydration production.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the catalyst is oxalic acid, second
One of acid, hydrochloric acid, sulfuric acid, phosphoric acid, phosphonic acids, benzene sulfonic acid and p-methyl benzenesulfonic acid are a variety of, and the dosage of the catalyst is phenol
The 0.1-1% of urea formaldehyde waste water dosage.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the dosage of the crushed material is phenol
The 1-10% of urea formaldehyde waste water dosage, the dosage of the formaldehyde are the 0.5-5% of phenolic resin wastewater dosage.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the temperature plasticated is 80-
150℃。
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the phenolic resin is thermoplasticity
One of phenolic resin or thermosetting phenolic resin or two kinds.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the inorganic filler is selected from carbonic acid
One of calcium, talcum powder, mica powder, wollastonite powder, white carbon black, magnesia, calcium oxide and flake asbestos are a variety of.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the curing agent is selected from six methylenes
One of urotropine, paraformaldehyde and p-methyl benzenesulfonic acid are a variety of.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, it is even that the auxiliary agent is selected from titanate esters
Join agent, aluminate coupling agent, silane coupling agent, boric acid ester coupler, phosphate coupling agent, EBS, zinc stearate, calcium stearate
One of or it is a variety of.
Further, in the recycle and reuse method of above-mentioned phenolaldehyde moulding compound waste material, the reinforcing fiber is selected from carbon fiber
One of dimension, basalt fibre, polyester fiber, alumina fibre, wood powder, paper powder, bamboo powder and glass fibre are a variety of.
The beneficial effects of the present invention are: the present invention using phenolaldehyde moulding compound waste material it is broken after be used as raw material and phenolic resin
Waste water, formaldehyde and catalyst are put into reaction kettle and react to obtain the phenolaldehyde moulding compound waste material of surface coating modification, then are matched
Specific gravity is moulded into phenolic molding compound material products, and finished product obtained has good mechanical performance, has not only recycled phenol by the method
Aldehyde moulding compound waste material, has also recycled the phenol formaldehyde (PF) in phenolic resin wastewater, improves the utilization rate of resource, and it is dirty to reduce environment
Dye, reduces the processing cost of waste material waste water, reduces production cost, and raw by the phenolaldehyde moulding compound that recycling waste water waste material produces
Each performance of the phenolaldehyde moulding compound of production can meet using standard.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, it is explained below in conjunction with embodiment.
The present invention provides a kind of recycle and reuse method of phenolaldehyde moulding compound waste material, and phenolaldehyde moulding compound waste material is used to give birth to
Phenolaldehyde moulding compound is produced, the phenolaldehyde moulding compound includes that following parts by weight material is prepared:
2 parts by weight of phenolaldehyde moulding compound waste material of surface coating modification；
35 parts by weight of thermoplastic phenolic resin；
20 parts by weight of carbon fiber；
5 parts by weight of calcium carbonate；
10 parts by weight of hexa；
1 parts by weight of titanate coupling agent；
The above material is uniformly mixed, the material mixed is sent into open mill or extruder, through over-mastication, tabletting,
Phenolaldehyde moulding compound is obtained after cooling, crushing；The temperature plasticated is 80 DEG C.
The phenolaldehyde moulding compound waste material of the surface coating modification the preparation method is as follows:
(1) phenolaldehyde moulding compound waste material is crushed, obtains crushed material；
(2) by 0.1 part of 100 parts of phenolic resin wastewater, 1 part of crushed material, 0.5 part of formaldehyde, catalyst addition reaction kettle；It is described
Phenolic resin wastewater is the waste water of phenolic resin production dehydration production.The catalyst is oxalic acid；
(3) it stirs and is warming up to 90-100 DEG C, be stirred to react 2-12h；
(4) 1-10h is staticly settled, releases resin from reactor bottom；
(5) resin that bottom releases obtains surface coating modification crushed material, the i.e. phenol of surface coating modification after dehydration
Aldehyde moulding compound waste material.
Another technical solution provided by the invention are as follows: a kind of recycle and reuse method of phenolaldehyde moulding compound waste material, by phenol
For aldehyde moulding compound waste material for producing phenolaldehyde moulding compound, the phenolaldehyde moulding compound includes that following parts by weight material is prepared:
10 parts by weight of phenolaldehyde moulding compound waste material of surface coating modification；
40 parts by weight of thermosetting phenolic resin；
35 parts by weight of basalt fibre；
10 parts by weight of talcum powder；
20 parts by weight of paraformaldehyde；
5 parts by weight of aluminate coupling agent；
The above material is uniformly mixed, the material mixed is sent into open mill or extruder, through over-mastication, tabletting,
Phenolaldehyde moulding compound is obtained after cooling, crushing；The temperature plasticated is 150 DEG C.
The phenolaldehyde moulding compound waste material of the surface coating modification the preparation method is as follows:
(1) phenolaldehyde moulding compound waste material is crushed, obtains crushed material；
(2) by 1 part of 100 parts of phenolic resin wastewater, 10 parts of crushed material, 5 parts of formaldehyde, catalyst addition reaction kettle；The phenol
Urea formaldehyde waste water are as follows: the waste water of phenolic resin production dehydration production.The catalyst be oxalic acid, acetic acid, hydrochloric acid, sulfuric acid, phosphoric acid,
One of phosphonic acids, benzene sulfonic acid and p-methyl benzenesulfonic acid are a variety of；
(3) it stirs and is warming up to 90-100 DEG C, be stirred to react 2-12h；
(4) 1-10h is staticly settled, releases resin from reactor bottom；
(5) resin that bottom releases obtains surface coating modification crushed material, the i.e. phenol of surface coating modification after dehydration
Aldehyde moulding compound waste material.
Embodiment 1-5
A kind of preparation method of the phenolaldehyde moulding compound waste material of surface coating modification, steps are as follows:
(1) it crushes: phenolaldehyde moulding compound waste material being crushed, crushed material is obtained；
(2) by phenolic resin wastewater, crushed material, formaldehyde, oxalic acid (the surface coating modification phenolaldehyde moulding compound of embodiment 1-5
Specific raw material ratio such as table 1) reaction kettle is added；
(3) it stirs and is warming up to 95 DEG C, be stirred to react 10h；
(4) 8h is staticly settled, releases resin from reactor bottom；
(5) resin that bottom releases obtains surface coating modification crushed material, the i.e. phenol of surface coating modification after dehydration
Aldehyde moulding compound waste material.
The 1 specific raw material ratio of surface coating modification phenolaldehyde moulding compound of table
Embodiment 6-11
A kind of recycle and reuse method of phenolaldehyde moulding compound waste material, steps are as follows:
By the phenolaldehyde moulding compound waste material of surface coating modification obtained by above-described embodiment 1-5, (phenolaldehyde moulding compound matches dosage such as
The following table 2), 37 parts of thermoplastic phenolic resin, 30 parts of reinforcing fiber, 8 parts of inorganic filler, 18 parts of hexa, 2 parts of auxiliary agent it is mixed
It closes uniformly, open mill temperature is risen to 120 DEG C, and the material mixed is sent into open mill or extruder, through over-mastication, pressure
Phenolaldehyde moulding compound is obtained after piece, cooling, crushing；
2 phenolaldehyde moulding compound of table proportion
The 3 phenolaldehyde moulding compound performance table of comparisons of table
From shown in the above-mentioned 3 phenolaldehyde moulding compound performance table of comparisons of table it is found that under same raw material, proportion and technology condition,
Phenolaldehyde moulding compound obtained by the phenolic resin of waste material waste water production is recycled, there is preferable stability, mechanical performance, and each performance
It can meet using standard.
In conclusion the recycle and reuse method of phenolaldehyde moulding compound waste material provided by the invention, phenolaldehyde moulding compound is broken
It it is put into phenolic resin wastewater, formaldehyde and catalyst reaction kettle after broken reacts to obtain the phenolaldehyde moulding compound of surface coating modification and give up
Material, then proportion remodeling is carried out into phenolic molding compound material products, finished product obtained has good mechanical performance, passes through the method
Phenolaldehyde moulding compound waste material and phenolic resin wastewater have not only been recycled, has turned waste into wealth and improves the utilization rate of resource, it is useless to reduce waste material
Pollution of the water to environment, also reduces the processing cost of waste material waste water, reduces production cost.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright description are applied directly or indirectly in relevant technical field, are similarly included in this hair
In bright scope of patent protection.
Claims (10)
1. a kind of recycle and reuse method of phenolaldehyde moulding compound waste material, which is characterized in that phenolaldehyde moulding compound waste material to be used to give birth to
Phenolaldehyde moulding compound is produced, the phenolaldehyde moulding compound includes that following parts by weight material is prepared:
The above material is uniformly mixed, the material mixed is sent into open mill or extruder, through over-mastication, tabletting, cooling,
Phenolaldehyde moulding compound is obtained after crushing；
The phenolaldehyde moulding compound waste material of the surface coating modification the preparation method is as follows:
(1) phenolaldehyde moulding compound waste material is crushed, obtains crushed material；
(2) reaction kettle is added in phenolic resin wastewater, crushed material, formaldehyde, catalyst；
(3) it stirs and is warming up to 90-100 DEG C, be stirred to react 2-12h；
(4) 1-10h is staticly settled, releases resin from reactor bottom；
(5) resin that bottom releases obtains surface coating modification crushed material, i.e. the phenolic aldehyde mould of surface coating modification after dehydration
Plastic waste.
2. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that the phenolic aldehyde tree
Rouge waste water are as follows: the waste water of phenolic resin production dehydration production.
3. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that the catalyst
For one of oxalic acid, acetic acid, hydrochloric acid, sulfuric acid, phosphoric acid, phosphonic acids, benzene sulfonic acid and p-methyl benzenesulfonic acid or a variety of, the catalyst
Dosage is the 0.1-1% of phenolic resin wastewater dosage.
4. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that the crushed material
Dosage be phenolic resin wastewater dosage 1-10%, the dosage of the formaldehyde is the 0.5-5% of phenolic resin wastewater dosage.
5. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that described to plasticate
Temperature is 80-150 DEG C.
6. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that the phenolic aldehyde tree
Rouge is one of thermoplastic phenolic resin or thermosetting phenolic resin or two kinds.
7. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that described inorganic to fill out
Material is selected from one of calcium carbonate, talcum powder, mica powder, wollastonite powder, white carbon black, magnesia, calcium oxide and flake asbestos or a variety of.
8. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that the curing agent
Selected from one of hexa, paraformaldehyde and p-methyl benzenesulfonic acid or a variety of.
9. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that the auxiliary agent choosing
From titanate coupling agent, aluminate coupling agent, silane coupling agent, boric acid ester coupler, phosphate coupling agent, EBS, stearic acid
One of zinc, calcium stearate are a variety of.
10. the recycle and reuse method of phenolaldehyde moulding compound waste material according to claim 1, which is characterized in that the enhancing
Fiber in carbon fiber, basalt fibre, polyester fiber, alumina fibre, wood powder, paper powder, bamboo powder and glass fibre one
Kind is a variety of.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116041899A (en) * | 2022-12-21 | 2023-05-02 | 开化瑞达塑胶科技有限公司 | Method for preparing ammonia-free phenolic moulding material by efficiently utilizing waste phenolic moulding material products |
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| CN107312291A (en) * | 2017-06-13 | 2017-11-03 | 广西信和新合成材料有限公司 | The processing method that phenolaldehyde moulding compound waste recovery is utilized |
| CN109486101A (en) * | 2018-11-27 | 2019-03-19 | 江苏中鹏新材料股份有限公司 | Recoverying and utilizing method without ammonia phenolaldehyde moulding compound fine powder |
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| JP2006233141A (en) * | 2005-02-28 | 2006-09-07 | Sumitomo Bakelite Co Ltd | Phenolic resin molding material |
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| CN116041899A (en) * | 2022-12-21 | 2023-05-02 | 开化瑞达塑胶科技有限公司 | Method for preparing ammonia-free phenolic moulding material by efficiently utilizing waste phenolic moulding material products |
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