CN104448694A - Process for recycling, regenerating and molding waste phenolic resin composite materials - Google Patents
Process for recycling, regenerating and molding waste phenolic resin composite materials Download PDFInfo
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- CN104448694A CN104448694A CN201410750837.8A CN201410750837A CN104448694A CN 104448694 A CN104448694 A CN 104448694A CN 201410750837 A CN201410750837 A CN 201410750837A CN 104448694 A CN104448694 A CN 104448694A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention discloses a process for recycling, regenerating and molding waste phenolic resin composite materials. The process comprises the following steps: smashing waste phenolic resin, adding a phenolic resin composite material and an additive, mixing uniformly, granulating to obtain a mixture, heating the mixture, preserving heat until the mixture is softened, transferring the softened mixture into a mold, molding and demolding to obtain a finished product. The process disclosed by the invention has the advantages that the finished fine powder of phenolic molding plastic is recycled and granulated, the finished product has more than 90% of the physical properties of a new material, and the finished product can be used as a new material, so that the waste can be reduced, and the production cost can be lowered.
Description
Technical field
The present invention relates to a kind of reclaiming moulding process of phenol-formaldehyde resin composite waste, specifically utilize electronic product spare and accessory parts scrap stock as starting material, prepare the technological method of phenolic resin composite.
Background technology
By phenols and aldehydes organic compound, the resol of polycondensation synthesis under catalyst action is a kind of conventional thermosetting resin in industrial application.Because of its premium properties and wide application field, resol industry is developed rapidly, and its output grows steadily, and consumption increases year by year, ranks the first place of thermosetting resin.Meanwhile, because resol is in the actual production process of electronic product, be difficult to ensure whole consumption, this will leave over a part of scrap stock; In addition, electronic product is after user uses, and the phenolic aldehyde waste material that yet existence part does not consume, this certainly will cause resol quantity that is that discarded and that be about to discard increasing.Due to the feature of thermosetting resin itself, resol has unique three-dimensional network molecular structure, showing insoluble not molten characteristic after its solidification makes resol have the fine qualities such as distinctive heat-resisting, insulation, result also in after it is discarded simultaneously and can not be biodegradable, the problem of regeneration difficulty, thus make waste thermosetting resol resource utilization degree very low, be almost all landfilled and burn.So not only can cause serious pollution to environment, and be that the one of resource is wasted greatly.Therefore, study the regeneration of these waste materials, for turn waste into wealth and environment protection in the urgent need to.
At present, about waste thermosetting plastics regeneration with utilize be a study hotspot globalized.For a long time, people think that thermosetting resin is not recyclable always, but result of study in recent years allows " thermosetting resin is not recyclable " concept shake.Existing research both domestic and external shows, by technical scheme reasonable in design, utilizes suitable technique means, can realize the recovery completely to waste thermosetting plastics.In recent years, the various recovery and utilization technologies of resol are developed, three classes can be roughly divided into: the first kind is pulverized by resol to reclaim as filler, additive and supplementary material, and the recovery technology of adopting in this way is filled in resol virgin material as invalid element after resol is pulverized, this class shortcoming is that the resol rate of recovery is not high, and the invalid element of filling can not be cross-linked and participate in reaction as virgin material, cause the material property after reclaiming to reduce Bu Neng System and make virgin material, or secondary Cai Liao System does product innovation use.Equations of The Second Kind resol is cracked into monomer and oligopolymer recycling, or make gac by sintering, the weak point of this method is that the method is higher to equipment requirements, and during cracking, energy consumption is too high, recovery benefit is on the low side, and also unbearable reclaimed materials makes product innovation use.3rd class is using the burning of recovery resol as the burning energy, and shortcoming burns to release many harmful gas, and need carry out the recycling of waste gas, the numerous and diverse benefit of technical process is lower, and also unbearable reclaimed materials makes product innovation use.
Application number 03136165.X, the Chinese patent of publication number 1454766 discloses a kind of Phenolic Moulding Compound Offal Treatment Processing Method, its processing step comprises: by the broken refinement of waste of producing phenolaldehyde moulding compound, fineness is 60-200 order, phenolaldehyde moulding compound waste after broken refinement is mixed with phenolaldehyde moulding compound raw material, ratio≤55% of waste and raw material, by mixed material heating, roller temperature 75-140 ° C, bag roll temperature 60-100 ° of C, heating roller temperature 120-150 ° C, roller spacing≤6.0mm, cool after plastic emitting, granulation, granulation size≤φ 8mm.In the method, only illustrate that this pulverizing reclaimed materials can reprocess mode, but fail to make an explanation for the physicals that the moulding compound recycling reclaimed makes goods, also unbearable reclaimed materials makes product innovation and uses.
Application number 200410103098.X, the Chinese patent of publication number 1634697 discloses a kind of recovery and molding process of composite waste, it mainly adopts automotive upholstery scrap stock to add polypropylene, coupling agent and auxiliary agent Homogeneous phase mixing after crushed and makes compound, compound is through heating, Heating temperature 185-195 ° of C, is incubated to compound and enters molten state, in a mold through mold pressing, dwell time 3-5 minute, obtains goods finished product after cooling and demolding.Wherein, phenol-formaldehyde resin composite waste is 28-45 % by weight, and virgin pp is 35-46 % by weight, and coupling agent is 10-12% % by weight, auxiliary agent 5-8 % by weight, glasscloth 5-6 % by weight; Soaking time is 9-10min; Move material time 50-70 second; Cooling temperature 70 ° of below C; Die pressure 1.4-1.6 MPa; Phenol-formaldehyde resin composite waste is particle or the sheet of 0.8-2 mm.In the method, phenolic resin waste inserts polypropylene thermoplastic material as the invalid filling composition of one as a kind of packing material, and can pollute the recovery again of acrylic resin, polypropylene thermoplastic material cannot be recycled again and make recovery finished product.
Application number 200910058294.2, the Chinese patent of publication number 101798398 discloses a kind of recycling method of thermosetting phenolic leftovers for mould applications, waste material, the method comprises the following steps: the phenolic leftovers after pulverizing, waste material mix by following weight percent with reaction resin, aldehyde compound, basic catalyst by a., obtain phenolic aldehyde compound material, phenolic leftovers, waste material 30-80%, reaction resin 10-60%, aldehyde compound 5-30%, basic catalyst 1-10%; B. viscosity adjustment is carried out to phenolic aldehyde compound material.Wherein, glass powder, the metal oxide filler of mixed weight 10-40% in phenolic aldehyde compound material; Reaction resin is all kinds of resol or epoxy resin, urea-formaldehyde resin, furane resin, urethane resin, Synolac, isocyanate resin; Aldehyde compound is formalin or paraformaldehyde, acetaldehyde, phenyl aldehyde; Basic catalyst is sodium, barium, potassium, calcium, magnesium, the oxyhydroxide of zinc or the halogenide of its carbonate or transition metal, or ammoniacal liquor, tertiary amine, quaternary amine urea, Dyhard RU 100, three cyanamides; Viscosity adjustment adopts adds solvent or dehydration adjustment, and adding solvent is water or ethanol, methyl alcohol, ethylene glycol, Diethylene Glycol, glycerol, sugar alcohol, ethylene carbonate.This method is the building-up process adopting thermosetting phenolic waste material to add reactive raw material to carry out again, again utilizes waste material, but high to equipment requirements, and synthetic route is more numerous and diverse, and cost recovery is higher.
Application number 201110274660.5, the Chinese patent of publication number 102441950 discloses the working method of a kind of fine powder material of phenolic plastic finished products recycling, the method comprises the following steps: in the 100 parts of fine powder material of phenolic plastic finished products recycled, add 6.25-10 part resol, 12.5-15 part glass fibre, then with the speed high-speed mixing 30-35 minute that per minute 400-500 turns; The raw material mixed is added to the loading hopper of screw extrusion press, the speed-frequency of screw extrusion press is also set as 25Hz by machine preheating; Open reinforced, reinforced frequency is added to 30Hz from 0Hz, when extruder head starts to extrude powder, open refrigerated water, three warm area temperature are reset; Measure the material temperature of extrusion with infrared thermometer, ensure that material temperature controls between 90-110 degree Celsius; Compressing tablet cools; Crushing and screening; Recycle.Phenolic resin waste is only added a small amount of resol and carries out granulation by this technique, but reprocesses finished product after not carrying out granulation and make and inquire into finished product physical property, and practicality and scope are still to be confirmed.
United States Patent (USP) U.S patent 6013684 discloses a kind of regeneration method of the phenolic resin hardening material for printed-wiring board (PWB), described method comprises: (a) heat treated phenolic resin hardening material, obtain the operation of the thermal decomposition product containing resistates, and (b) is separated the operation of resistates and thermal decomposition product, and the carbide powder that the resistates pulverizing above-mentioned separation obtains by (c) is done shaping separately, or by its operation with tackiness agent mixing aftershaping, and/or the molding procedure of the thermal decomposition product of (d) gelation and dry above-mentioned separation, thus, form the molding procedure of described thermal decomposition product.Wherein, operation (a) heat treated be lower concentration oxygen atmosphere or carry out in a solvent, its treatment temp is 300-1000 ° of C scope, by carbide powder separately or be filled in after mixing with tackiness agent in gas-barrier container, vacuum exhaust, sealing, obtained vacuum insulation element; Make an addition in above-mentioned pyrolysate to major general's condensing agent, condensation catalyst and solvent in operation (d) and obtain moistening gel, this gel dry, except desolventizing obtains aerosol formed body.This is owned by France makes carbonized powder reshaping in thermolysis resol and is processed into aerosol-type body, and need in this technique to consume a large amount of heat energy, also need high temperature resistant equipment and vacuum apparatus, flow process redundancy, process costs is higher, and industrialization value is not high.
United States Patent (USP) U.S patent 4118346 discloses a kind of recovery process of not molten phenolic resin material, this technique comprises the following steps: not molten phenolic composite being clayed into power adds Homogeneous phase mixing in basic solution, mixing solutions is heated to 260 ~ 340 ° of C again, is incubated and within 3-160 minute, makes the resin in phenolic composite be dissolved in described basic solution; Filter, removing insolubles, in filtrate, add a kind of acid solution produce precipitation, precipitation separation, by precipitated solid washing with removing soluble salt wherein, phenol and cresols; Goods are obtained by storing after the resin material drying obtained.
United States Patent (USP) U.S patent 5136111 discloses a kind of recovery process of thermo-cracking phenolic aldehyde waste material, by the mode of fast pyrolysis in carrier gas, the phenolic resin waste thermo-cracking comprising feedstream is had precedence over other monomers and generates a kind of high value monomer component.Specifically, the first temperature making described phenolic aldehyde waste material generation cracking is 250-300 ° of C; Within the scope of said temperature with certain temperature rise rate heating raw stream to obtain the high value monomer component of optimal dose by differential thermal solution selectivity priority reclamation phenolic aldehyde waste material; High value monomer component described in separation; Higher the second temperature 350-700 ° C is selected to be reclaimed in phenolic aldehyde waste material from aforementioned different high value monomer component by higher temperature differential thermal solution and be separated this monomer.Wherein, described resol comprises phenol/formaldehyde novolac resin, and the substituent of described high value monomer component to be phenol and described different high value monomer component be phenol, described carrier gas comprises rare gas element, carbonic acid gas and technological cycle gas.
Weigh the Practical Performance that an important indicator and the made finished product be worth recycled by resol, roughly be not reported in above-mentioned patent, though chemistry or energy method can produce useful degraded or synthetic product, equipment and manipulation cost is high, and industrialization value is lower.Therefore, the phenolic resin waste recovery processing technology that one can be practically applicable to manufacture brand-new finished product is still urgently developed at present.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, provides a kind of reclaiming moulding process of phenol-formaldehyde resin composite waste.
There is provided a kind of reclaiming moulding process of phenol-formaldehyde resin composite waste, phenolic resin waste adds phenolic resin composite after crushed, compound is made in the granulation of auxiliary agent Homogeneous phase mixing in employing, and compound is through heating, insulation to compound enters softening state, to soften state compound again to move in mould through mold pressing, obtains making goods, the following performance of goods: tensile strength after the demoulding, breaking tenacity, heat resistance, become second nature shrinking percentage, water-intake rate, proportion, flame resistivity can reach 90% of former goods.
At the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, it is characterized in that: described phenolic resin waste is the compound of one or more of all kinds of Fen aldehyde Shu Zhi ﹑ Niao aldehyde Shu Zhi ﹑ Fu Nan Shu Zhi ﹑ Ju ammonia ester Shu Zhi ﹑ Chun acid Shu Zhi ﹑ isocyanate resin waste material.
At the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, described phenolic resin composite is a kind of or several compounds and this compound crushed material of all kinds of Fen aldehyde Shu Zhi ﹑ Niao aldehyde Shu Zhi ﹑ Fu Nan Shu Zhi ﹑ Ju ammonia ester Shu Zhi ﹑ Chun acid Shu Zhi ﹑ isocyanate resin.
At the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, the phenolic resin composite of described pulverizing is that a kind of or several compound of all kinds of Fen aldehyde Shu Zhi ﹑ Niao aldehyde Shu Zhi ﹑ Fu Nan Shu Zhi ﹑ Ju ammonia ester Shu Zhi ﹑ Chun acid Shu Zhi ﹑ isocyanate resin pulverizes resol material through the broken 100-800 object that obtains of fine powder.
In the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, technique pulverized by described resol, be the coarse reduction phenolic resin waste first resol scrap stock being obtained 0-8 mm through coarse reduction, then coarse reduction resol material obtained the broken phenolic resin waste of 100-800 object fine powder through fine powder is broken.
In the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, described auxiliary agent is one in various phenolic compound, aldehyde compound, alcohol compound and carboxylic acid compound or several.
In the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, described phenol-formaldehyde resin composite waste is: 0-35 % by weight, and phenolic resin composite is: 65-100 % by weight, auxiliary agent: 0-10 % by weight.
In the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, described phenol-formaldehyde resin composite waste is: 0-35 % by weight, and the phenolic resin composite of pulverizing is: 100-65 % by weight, auxiliary agent: 0-10 % by weight.
In the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, described phenol-formaldehyde resin composite waste is: 0-35 % by weight, phenolic resin composite is: 100-65 % by weight, and the phenolic resin composite of pulverizing is: 100-65 % by weight, auxiliary agent: 0-10 % by weight.
In the reclaiming moulding process of above-mentioned a kind of phenol-formaldehyde resin composite waste, described granulation process compound is directly carried out non-slurry pelletizing to obtain pellet; Described softening temperature is: 50-80 DEG C; Described die temperature is: 160-200 DEG C; The described dwell time is 20-90 second.
Present method for starting material with the scrap stock of alkyd resin based electronic product spare and accessory parts and waste material, it can be used as a kind of effective constituent, in conjunction with related auxiliaries, adds in resol virgin material and process.Under promoter effect, phenolic resin waste surface Guan Neng group is activated, and occurs crosslinked in the course of processing, thus efficient recovery phenolic aldehyde waste material.This technique adopts simple terms of settlement, reduce the secondary pollution to environment, turn waste into wealth, and on the basis maintaining goods original physicalies efficient recovery phenolic resin waste, thus reduce industrial cost, and the physical properties of finished product all can reach more than 90% of virgin material, virgin material can be used as and use, can be conducive to increasing economic efficiency.
The invention has the advantages that:
(1) present invention process simple flow, overcomes the flow line of redundancy and the equipment requirements of harshness, with low cost, is easy to industrialization;
(2) in the present invention, phenolic aldehyde waste material uses as effective ingredient, and recovery utilization rate is high, non-secondary pollution, greatly improve the pressure of phenol-formaldehyde resin composite waste to environment, and reclaimed materials can be recycled again;
(3) products machinery in the present invention made by phenol-formaldehyde resin composite waste regeneration is functional, has excellent recycle value, and directly can substitute unmodified resin and use, physical properties all can reach the use range of unmodified resin.
Accompanying drawing explanation
Fig. 1 is present invention process flow line figure.
Embodiment
In order to better understand the present invention, below in conjunction with specific embodiment, the present invention is further illustrated, illustrates that result is for tensile strength.
Embodiment one:
1. phenolic resin waste is pulverized: resol scrap stock or waste material pulverizer are carried out the coarse reduction phenolic resin waste that coarse reduction obtains 2mm, then coarse reduction phenolic resin waste is obtained the broken phenolic resin waste of 300 object fine powder through fine powder is broken.
2. resol virgin material is pulverized: resol virgin material pulverizer is obtained the broken resol virgin material of 100 object fine powder through fine powder is broken.
3. raw material mixing: phenolic resin waste step 1 obtained 35 parts, step 2 resol virgin material 65 parts and properties-correcting agent jointly add mixing machine and carries out Homogeneous phase mixing.
4. compound granulation: the resol compound tablets press of step 3 gained is carried out granulation.
5. granulation material injection moulding: resol pellet step 3 obtained is 65 DEG C at softening temperature, solidification value is that under the condition of 180 DEG C, sample is made in injection moulding.
6. pair sample is tested, and following table is test result.
Case study on implementation two:
1. phenolic resin waste is pulverized: resol scrap stock or waste material pulverizer are carried out the coarse reduction phenolic resin waste that coarse reduction obtains 2mm, then coarse reduction phenolic resin waste is obtained the broken phenolic resin waste of 400 object fine powder through fine powder is broken.
2. resol virgin material is pulverized: resol virgin material pulverizer is obtained the broken resol virgin material of 100 object fine powder through fine powder is broken.
3. raw material mixing: phenolic resin waste step 1 obtained 35 parts, step 2 resol virgin material 65 parts and properties-correcting agent jointly add mixing machine and carries out Homogeneous phase mixing.
4. compound granulation: the resol compound tablets press of step 3 gained is carried out granulation.
5. granulation material injection moulding: resol pellet step 3 obtained is 65 DEG C at softening temperature, solidification value is injection moulding under the condition of 180 DEG C.
6. pair sample is tested, and following table is test result.
Case study on implementation three:
1. phenolic resin waste is pulverized: resol scrap stock or waste material pulverizer are carried out the coarse reduction phenolic resin waste that coarse reduction obtains 2mm, then coarse reduction phenolic resin waste is obtained the broken phenolic resin waste of 800 object fine powder through fine powder is broken.
2. resol virgin material is pulverized: resol virgin material pulverizer is obtained the broken resol virgin material of 200 object fine powder through fine powder is broken.
3. raw material mixing: phenolic resin waste step 1 obtained 35 parts, step 2 resol virgin material 65 parts and properties-correcting agent jointly add mixing machine and carries out Homogeneous phase mixing.
4. compound granulation: the resol compound tablets press of step 3 gained is carried out granulation.
5. granulation material injection moulding: resol pellet step 4 obtained is 65 DEG C at softening temperature, solidification value is injection moulding under the condition of 180 DEG C.
6. pair sample is tested, and following table is test result.
Case study on implementation four:
1. phenolic resin waste is pulverized: resol scrap stock or waste material pulverizer are carried out the coarse reduction phenolic resin waste that coarse reduction obtains 2mm, then coarse reduction phenolic resin waste is obtained the broken phenolic resin waste of 800 object fine powder through fine powder is broken.
2. resol virgin material is pulverized: resol virgin material pulverizer is obtained the broken resol virgin material of 400 object fine powder through fine powder is broken.
3. raw material mixing: phenolic resin waste step 1 obtained 35 parts, step 2 resol virgin material 65 parts and properties-correcting agent jointly add mixing machine and carries out Homogeneous phase mixing.
4. compound granulation: the resol compound tablets press of step 3 gained is carried out granulation.
5. granulation material injection moulding: resol pellet step 4 obtained is 65 DEG C at softening temperature, solidification value is injection moulding under the condition of 180 DEG C.
6. pair sample is tested, and following table is test result.
Claims (10)
1. the reclaiming moulding process of a phenol-formaldehyde resin composite waste, it is characterized in that: phenolic resin waste adds phenolic resin composite after crushed, compound is made in the granulation of auxiliary agent Homogeneous phase mixing in employing, compound is through heating, insulation to compound enters softening state, state compound will be softened again move in mould through mold pressing, obtain after the demoulding making goods, the following performance of goods: tensile strength, breaking tenacity, heat resistance, become second nature shrinking percentage, water-intake rate, proportion, flame resistivity can reach 90% of former goods.
2. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to claim 1, is characterized in that: described phenolic resin waste is the compound of one or more of all kinds of Fen aldehyde Shu Zhi ﹑ Niao aldehyde Shu Zhi ﹑ Fu Nan Shu Zhi ﹑ Ju ammonia ester Shu Zhi ﹑ Chun acid Shu Zhi ﹑ isocyanate resin waste material.
3. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to claim 1, is characterized in that: described phenolic resin composite is a kind of or several compounds and this compound crushed material of all kinds of Fen aldehyde Shu Zhi ﹑ Niao aldehyde Shu Zhi ﹑ Fu Nan Shu Zhi ﹑ Ju ammonia ester Shu Zhi ﹑ Chun acid Shu Zhi ﹑ isocyanate resin.
4. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to claim 1, is characterized in that: the phenolic resin composite of described pulverizing is that a kind of or several compound of all kinds of Fen aldehyde Shu Zhi ﹑ Niao aldehyde Shu Zhi ﹑ Fu Nan Shu Zhi ﹑ Ju ammonia ester Shu Zhi ﹑ Chun acid Shu Zhi ﹑ isocyanate resin pulverizes resol material through the broken 100-800 object that obtains of fine powder.
5. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to right 1, it is characterized in that: technique pulverized by described resol, be the coarse reduction phenolic resin waste first resol scrap stock being obtained 0-8 mm through coarse reduction, then coarse reduction resol material obtained the broken phenolic resin waste of 100-800 object fine powder through fine powder is broken.
6. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to claim 1, is characterized in that: described auxiliary agent is one in various phenolic compound, aldehyde compound, alcohol compound and carboxylic acid compound or several.
7. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to right 1, is characterized in that: described phenol-formaldehyde resin composite waste is: 0-35 % by weight, and phenolic resin composite is: 65-100 % by weight, auxiliary agent: 0-10 % by weight.
8. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to right 1, is characterized in that: described phenol-formaldehyde resin composite waste is: 0-35 % by weight, and the phenolic resin composite of pulverizing is: 100-65 % by weight, auxiliary agent: 0-10 % by weight.
9. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to right 1, it is characterized in that: described phenol-formaldehyde resin composite waste is: 0-35 % by weight, phenolic resin composite is: 100-65 % by weight, the phenolic resin composite pulverized is: 100-65 % by weight, auxiliary agent: 0-10 % by weight.
10. the reclaiming moulding process of a kind of phenol-formaldehyde resin composite waste according to right 1, is characterized in that: described granulation process compound is directly carried out non-slurry pelletizing to obtain pellet; Described softening temperature is: 50-80 DEG C; Described die temperature is: 160-200 DEG C; The described dwell time is 20-90 second.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855264A (en) * | 2016-04-01 | 2016-08-17 | 佩尔哲汽车内饰系统(太仓)有限公司 | Felt production system and method as well as felt |
| CN105949712A (en) * | 2016-05-25 | 2016-09-21 | 山东国正化工有限公司 | Method for recycling wastes of amino moulding plastic products |
| CN106832753A (en) * | 2017-01-17 | 2017-06-13 | 湖北爱仕达电器有限公司 | A kind of phenoplasts waste material recovery method |
| CN108641283A (en) * | 2018-04-28 | 2018-10-12 | 连云港中意航空材料有限公司 | A kind of novel useless amino film plastics product regeneration method |
| TWI647251B (en) * | 2018-03-08 | 2019-01-11 | Syndyne Industrial Co., Ltd. | Application method of reactive polymer phenolic resin |
| CN111574806A (en) * | 2019-02-18 | 2020-08-25 | 顾爱飞 | Method for treating thermosetting plastic waste |
| CN114147897A (en) * | 2021-12-14 | 2022-03-08 | 合肥工业大学智能制造技术研究院 | Production process for preparing regenerated board by recycling waste phenolic plastics |
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| CN1634697A (en) * | 2004-12-29 | 2005-07-06 | 刘明春 | Recovery and molding process for phenol-formaldehyde resin composite waste |
| CN101041725A (en) * | 2006-03-24 | 2007-09-26 | 陈书怡 | Reproduction new method for waste elastomer and plastic |
| CN103160074A (en) * | 2013-04-02 | 2013-06-19 | 厦门柯依达工贸有限公司 | Utilization method of waste residue in treatment of phenolic resin production wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1634697A (en) * | 2004-12-29 | 2005-07-06 | 刘明春 | Recovery and molding process for phenol-formaldehyde resin composite waste |
| CN101041725A (en) * | 2006-03-24 | 2007-09-26 | 陈书怡 | Reproduction new method for waste elastomer and plastic |
| CN103160074A (en) * | 2013-04-02 | 2013-06-19 | 厦门柯依达工贸有限公司 | Utilization method of waste residue in treatment of phenolic resin production wastewater |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855264A (en) * | 2016-04-01 | 2016-08-17 | 佩尔哲汽车内饰系统(太仓)有限公司 | Felt production system and method as well as felt |
| CN105949712A (en) * | 2016-05-25 | 2016-09-21 | 山东国正化工有限公司 | Method for recycling wastes of amino moulding plastic products |
| CN106832753A (en) * | 2017-01-17 | 2017-06-13 | 湖北爱仕达电器有限公司 | A kind of phenoplasts waste material recovery method |
| CN106832753B (en) * | 2017-01-17 | 2019-02-26 | 湖北爱仕达电器有限公司 | A kind of phenoplasts waste material recovery method |
| TWI647251B (en) * | 2018-03-08 | 2019-01-11 | Syndyne Industrial Co., Ltd. | Application method of reactive polymer phenolic resin |
| CN108641283A (en) * | 2018-04-28 | 2018-10-12 | 连云港中意航空材料有限公司 | A kind of novel useless amino film plastics product regeneration method |
| CN111574806A (en) * | 2019-02-18 | 2020-08-25 | 顾爱飞 | Method for treating thermosetting plastic waste |
| CN114147897A (en) * | 2021-12-14 | 2022-03-08 | 合肥工业大学智能制造技术研究院 | Production process for preparing regenerated board by recycling waste phenolic plastics |
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