CN105085987A - Coated particle and preparation method and application thereof - Google Patents
Coated particle and preparation method and application thereof Download PDFInfo
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- CN105085987A CN105085987A CN201510599021.4A CN201510599021A CN105085987A CN 105085987 A CN105085987 A CN 105085987A CN 201510599021 A CN201510599021 A CN 201510599021A CN 105085987 A CN105085987 A CN 105085987A
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Abstract
The invention provides a coated particle and a preparation method and application thereof. The coated particle comprises a coated object and a coating layer which completely coats the coated object, wherein the coated object adopts one or a mixture of thermoplastic resin modification filling agents, pigment and addition agents, and the coating layer adopts resin. The coated particle and the preparation method thereof have the advantages of being few in steps, lower in cost, reasonable in technology, convenient to operate, precision in control and capable of easily achieving industrialization.
Description
Technical field
The present invention relates to thermoplastic resin industrial technical field, especially a kind of covering property particle and its preparation method and application.
Background technology
The plastics industry of current China develops rapidly, and the range of application of plastics is also more and more extensive.But along with the modern high speed development of China, various new requirement be it is also proposed to plastics.In order to the needs of satisfied different purposes, except the synthetic resins kind that develop actively is new, also should existing resin treatment become in the process of plastics, utilize chemical process or physical method to change some performances of plastics, to reach the object of expection, Here it is modifying plastics.In general, plastics modification technology new resin more a kind of than synthesis is much easier, and especially physically modified, can carry out in general plastics processing factory, and easily take effect, and therefore modifying plastics research obtains the attention of people gradually.
Plastic master batch refers to and adds a kind of plastics processing auxiliary agent obtained in vector resin by the additives for plastics exceeding conventional addition.When plastics-production, in order to improve its processing characteristics or not enough in order to improve resin itself, and some auxiliary agents must be added, as: softening agent, thermo-stabilizer, photostabilizer, fire retardant, oxidation inhibitor etc.; Simultaneously along with the increase of plastics variety, the performance requriements of people to plastics is more and more higher, and modifying plastics research is increasingly extensive, and the new variety such as modifying plastics weighting agent, auxiliary agent constantly obtain development and application.As: talcum powder, glass fibre, carbon fiber, pigment etc.In order to simplify production technique, reducing dust from flying, reducing the wearing and tearing of equipment, conservation, make raw material mix convenient, mixing is even, thus to enhance productivity and the performance index of goods.Current most of plastics-production enterprise and modifying plastics enterprise all directly add master batch.Therefore, plastic master batch plays great role to the fast development promoting plastics industry.
Domestic and international talcum powder master batch, glass fibre master batch, black masterbatch, carbon fiber master batch, oxidation inhibitor master batch, fire retardant master batch, Masterbatch, multifunctional mother granules etc. at present, its production technique mainly contains two kinds: one adopts Banbury mixer banburying and then through screw extrusion press extruding pelletization, second method adopts high-speed mixer mixture, and then through twin screw extruder extruding pelletization.Employing Banbury mixer is produced, material flies upward seriously, cause environmental pollution and the level of automation of whole production line is low, the labour intensity of employee is large, and production efficiency is low, adopts high-speed mixer to add the manufacture method of twin screw extruder, because high-speed stirring wanted by the method material, meanwhile, the more difficult control of temperature of mixing machine, energy consumption is larger again.Above two kinds of production technique are all complete under high temperature and high speed shearing condition, and the performance of masterbatch and additive all likely changes, and in the master batch using above two kinds of production technique to produce, its concentration of the additives for plastics of some transnormal additions is limited.Modifying plastics weighting agent and additive types various, not can above technique be used to make multifunctional mother granules all weighting agents and additive.
In sum, current above-mentioned master batch and preparation method thereof and equipment still Shortcomings, still need to seek a kind of simple covering property particle and preparation method thereof efficiently.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of dustless, energy-conservation, do not change master batch/modified particles vector resin and filling, Additive Properties, and improve the preparation method of a kind of novel covering property particle of master batch/modified particles and application interlaminar resin consistency.
On the one hand, the invention provides a kind of covering property particle, comprising:
Coating, and
Coating layer, the complete coated described coating of described coating layer,
Wherein said coating is the mixture of one or more in thermoplastic resin modified weighting agent, pigment, additive, and described coating layer is resin.
In an embodiment of covering property particle of the present invention, described coating layer be selected from PP, PE, ABS, PS, PA, PVC, FR, POM, PC and PET one or more.
In another embodiment of covering property particle of the present invention, described covering property grain diameter 2-10mm, preferably 2.5-7mm, the thickness of described coating layer is 0.01-4.95mm, preferably 0.02-3.45mm.
In another embodiment of covering property particle of the present invention, described covering property particle is covering property master batch or covering property modified particles.
In another embodiment of covering property particle of the present invention, described covering property master batch is covering property talcum powder master batch, covering property glass fibre master batch, covering property black masterbatch, covering property carbon fiber master batch, covering property oxidation inhibitor master batch, covering property fire retardant master batch, covering property Masterbatch or covering property multifunctional mother granules.
In another embodiment of covering property particle of the present invention, described covering property modified particles is that covering property MODIFIED PP particle, covering property modified PE particle, covering property modified ABS particle, covering property modification PS particle, covering property modification PA particle, covering property modified PVC particle, covering property modification POM particle, covering property modification PC particle, covering property modified PET are granule modified, covering property alloying pellet etc.
On the other hand, the invention provides a kind of preparation method of covering property particle, comprising:
Thermoplastic resin masterbatch is plastified, extrudes and tube drawing, obtain thermoplastic resin pipe;
Coating is filled in described thermoplastic resin pipe; And
Described thermoplastic resin pipe after filling is sheared, and makes the complete coated described coating of described thermoplastic resin pipe, obtain covering property particle.
In an embodiment of preparation method of the present invention, described filling and described tube drawing carry out simultaneously.
In another embodiment of preparation method of the present invention, after described tube drawing, carry out described filling.
In another embodiment of preparation method of the present invention, described covering property grain diameter 2-10mm, preferably 2.5-7mm, the thickness of described coating layer is 0.01-4.95mm, preferably 0.02-3.45mm.
In another embodiment of preparation method of the present invention, described thermoplastic resin masterbatch be selected from PP, PE, ABS, PS, PA, PVC, FR, POM, PC and PET one or more.
In another embodiment of preparation method of the present invention, described coating is the mixture of one or more in thermoplastic resin modified weighting agent, pigment, additive.
In another embodiment of preparation method of the present invention, described shearing is carried out in the mode of hot shearing, is closed by coating layer while shearing, forms subsphaeroidal particle or the cylindrical particle of Full-enclosed leakless.
In another embodiment of preparation method of the present invention, described shearing is carried out in the mode of cold shearing, forms the cylindrical particle that end face is not closed.
On the other hand, the invention provides the application of above-mentioned covering property particle in thermoplastic resin manufacture field.
Compared with prior art, covering property particle of the present invention and preparation method thereof has following beneficial effect:
1, all thermoplastic resin fillings, additive, pigment etc., this method can be adopted to make master batch, the physically modified of all thermoplastic resins, this method can be adopted to make, size is adjustable within the specific limits, solve thermoplastic resin manufacture field filling in prior art, additive feeding is difficult, metering is difficult, measure inaccurate problem, stopped dust from flying simultaneously, improved Working environment.
2, the master batch/modified particles using preparation method of the present invention to make changes the performance of coating layer resin and coating hardly, improves the consistency between master batch and resin matrix, ensure that the quality of goods.
Preparation method's step provided by the invention is less, cost is lower, rational technology, easy to operate, control accurately, be easy to industrialization.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of an embodiment of method produced according to the present invention;
Fig. 2 is the process flow sheet of another embodiment of method produced according to the present invention.
Embodiment
According to specific embodiment, technical scheme of the present invention is described further below.Protection scope of the present invention is not limited to following examples, enumerates these examples and does not only limit the present invention in any way for exemplary purpose.
Covering property particle of the present invention comprises coating and coating layer, this coating layer this coating completely coated.
Covering property particle can be covering property master batch or covering property modified particles.
The coating of covering property particle is thermoplastic resin is produced and modification uses filling, additive and pigment etc.As: one or several mixture of talcum powder, glass fibre, carbon black, oxidation inhibitor, fire retardant, softening agent etc.
The coating layer of covering property particle is resin, and this resin is that any one in thermoplastic resin is as one or more in PP, PE, ABS, PS, PA, PVC, FR, POM, PC and PET etc.
When covering property particle is covering property modified particles, this coating layer is the thermoplastic resin needing modification.
Covering property grain diameter 2-10mm, preferably 2.5-7mm, the thickness of coating layer is 0.01-4.95mm, preferably 0.02-3.45mm.
Fig. 1 is the process flow sheet of an embodiment of method produced according to the present invention, as shown in Figure 1, specifically comprises the following steps:
1, according to the ratio precise raw material of setting, raw material comprises coating layer resin and coating.
2, coating layer resin is added in the hopper of resin tube pulling machine, coating layer resin is undertaken plastifying by tube pulling machine, extrude, tube pulling, coating is added in the hopper of filling machine simultaneously, uses filling machine continuous print to fill in thermoplastic resin pipe.
3, by adjustment tube pulling machine mouth mould, transfer to the thermoplastic resin pipe of required diameter, the speed simultaneously adjusting filling machine feeder makes coating be full of thermoplastic resin pipe fully.
4, adjust velocity of shear, will the thermoplastic resin pipe hot shearing of coating be full of, when shearing, coating layer heat seal being closed, forming covering property particle totally enclosed, leak free, of uniform size.
Fig. 2 is the process flow sheet of another embodiment of method produced according to the present invention, and as shown in Figure 2, the difference of the embodiment of itself and Fig. 1 is: when preparing covering property particle, first carrying out tube drawing, carrying out filling coating more afterwards.
Unless otherwise defined, term used herein is the implication that those skilled in the art understand usually.
By the following examples the present invention is described in further detail.
Embodiment
Number in following examples and comparative example all refers to weight part.
Embodiment 1:
The talcum powder of the polypropylene of 17 parts and 83 parts is put in tube pulling machine hopper respectively with in filling machine hopper, the mouth mould of tube pulling machine is adjusted to the specification of external diameter 5mm internal diameter 4mm, start tube pulling machine, the head temperature of adjustment tube pulling machine, starts filling machine, adjusts talcous blanking velocity, tube pulling limit, limit is filled, then adjusting velocity of shear, carrying out hot shearing to being filled with talcous polypropylene thermoplastic pitch tube, obtain the coated master batch of polypropylene talcum powder of particle diameter at about 5mm.
Embodiment 2:
The carbon fiber of the ABS resin of 23 parts and 77 parts is put in the hopper of tube pulling machine respectively with in filling machine hopper, the mouth mould of tube pulling machine is adjusted to the specification of external diameter 3mm internal diameter 2.6mm, start tube pulling machine, the head temperature of adjustment tube pulling machine, starts filling machine, the blanking velocity of adjustment carbon fiber, tube pulling limit, limit is filled, then adjust velocity of shear, hot shearing is carried out to the ABS resin thermoplastic resin pipe being filled with carbon fiber, obtain the coated master batch of ABS carbon fiber of particle diameter at about 3mm.
Embodiment 3:
The acrylic resin of 33 parts is put in the hopper of tube pulling machine, the mouth mould of tube pulling machine is adjusted to external diameter 4mm, the specification of internal diameter 3.5mm, start tube pulling machine, the head temperature of adjustment tube pulling machine, then extruding tube pulling, to dial into external diameter be 4mm, and internal diameter is the polypropylene thermoplastic pitch tube of 3.5mm.By the thermoplastic resin pipe dialled by being placed on filling machine, then the composite antioxidant B215 adding 67 parts in filling machine hopper (is composited in the ratio of 2:1 by irgasfos 168 and antioxidant 1010, wherein irgasfos 168 is three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, antioxidant 1010 is four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester), start filling machine, the blanking velocity of adjustment B215, oxidation inhibitor B215 is made to be filled in polypropylene thermoplastic pitch tube fully, then populated polypropylene thermoplastic pitch tube is carried out hot shearing, obtain the polypropylene B215 coated master batch of particle diameter at about 4mm.
Embodiment 4:
The polyvinyl resin of 42 parts is put in the hopper of tube pulling machine, the mouth mould of tube pulling machine is adjusted to external diameter 6mm, the specification of internal diameter 5mm, start tube pulling machine, the head temperature of adjustment tube pulling machine, then extruding tube pulling, to dial into external diameter be 6mm, and internal diameter is polyethylene thermoplastic resin's pipe of 5mm.By the thermoplastic resin pipe dialled by being placed on filling machine, then the composite antioxidant B225 adding 58 parts in filling machine hopper (is composited in the ratio of 1:1 by irgasfos 168 and antioxidant 1010, wherein irgasfos 168 is three [2.4-di-tert-butyl-phenyl] phosphorous acid ester, antioxidant 1010 is four [β-(3, 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester), start filling machine, the blanking velocity of adjustment B225, oxidation inhibitor B225 is made to be filled in polyethylene thermoplastic resin's pipe fully, then populated polyethylene thermoplastic resin's pipe is carried out hot shearing, obtain the polyethylene B225 coated master batch of particle diameter at about 6mm.
Embodiment 5:
The Lubricate EBS of the ABS resin of 30 parts and 70 parts of preparing by a certain percentage, calcium stearate, barium stearate mixture are put in the hopper of tube pulling machine and in filling machine hopper respectively, the mouth mould of tube pulling machine is adjusted to external diameter 4mm, the specification of internal diameter 3.6mm, start tube pulling machine, the head temperature of adjustment tube pulling machine, start filling machine, the blanking velocity of adjustment stopping composition, tube pulling limit, limit is filled, then velocity of shear is adjusted, hot shearing is carried out to populated ABS resin thermoplastic resin pipe, obtains with the ABS coated composite additive master batch of particle diameter at about 4mm.
Embodiment 6:
By the polypropylene of 10 parts and the composite antioxidant B215 of 90 parts for preparing by a certain percentage, calcium stearate, talcum powder, the green mixture of titanium cyanines is put in the hopper of tube pulling machine respectively with in filling machine hopper, it is 2.5mm that the mouth mould of tube pulling machine is adjusted to external diameter, internal diameter is the specification of 2.3mm, start tube pulling machine, the head temperature of adjustment tube pulling machine, start filling machine, the blanking velocity of adjustment stopping composition, tube pulling limit, limit is filled, then velocity of shear is adjusted, hot shearing is carried out to populated polypropylene thermoplastic pitch tube, obtain particle diameter at the coated master batch of the polypropylene multifunctional of about 2.5mm.
Embodiment 7:
By PPAW191 (TPCGO company of Singapore), PPK7726 (Yanshan Petrochemical), PPF401 (north, Liaoning Hua Jin), SBSYH-792 (Yueyang petrochemical industry) uses high-speed mixer high-speed mixing 1 minute by a certain percentage, low speed mixing three minutes, put in tube pulling machine hopper, the mouth mould of tube pulling machine is adjusted to external diameter 5mm specification, start tube pulling machine, the head temperature of adjustment tube pulling machine, start filling machine, by superfine talcum powder (1250 orders good for blending by a certain percentage, Yunnan ultra micro novel material company), aluminate coupling agent (Hebei Xinji chemical industry), PP-g-MAH (Ke Hua company of Haier), antioxidant 1010 (Liaoning is praised triumphant), DLTP (Liaoning is praised triumphant), CaSt (Liaoning is praised triumphant), EBS (Liaoning is praised triumphant) mixture, put in filling machine hopper, tube pulling limit, limit is filled, then velocity of shear is adjusted, hot shearing is carried out to populated plastics tubing, obtain particle diameter at the special covering property modified particles of the refrigerator drawer of about 5mm.
Embodiment 8:
By PPK7726 (Yanshan Petrochemical), PP8303 (Yanshan Petrochemical), PP2401 (Yanshan Petrochemical), POE8105 uses high-speed mixer low speed mixing 1 minute by a certain percentage, high-speed stirring 1 minute, put in tube pulling machine hopper, the mouth mould of tube pulling machine is adjusted to external diameter 3mm specification, start tube pulling machine, the head temperature of adjustment tube pulling machine, start filling machine, by good for blending by a certain percentage 1010, DLTP, ZnSt, carbon black stock, put in filling machine hopper, tube pulling limit, limit is filled, then velocity of shear is adjusted, hot shearing is carried out to populated plastics tubing, obtain particle diameter at the special covering property modified particles of the bumper of about 3mm.
Embodiment 9:
PPK7726 (Yanshan Petrochemical), PPT30S (north, Liaoning Hua Jin) are put in the hopper of tube pulling machine, use high-speed mixer high-speed mixing by a certain percentage 1 minute, the low stirring 3 minutes that hastens, the mouth mould of tube pulling machine is adjusted to external diameter 6mm, start tube pulling machine, the head temperature of adjustment tube pulling machine, then extruding tube pulling, to dial into external diameter be 6mm.By the plastics tubing dialled by being placed on filling machine, then add in filling machine hopper blending by a certain percentage good 1010, DLTP, EBS, ultra-fine barium sulfate, aluminate coupling agent, nucleator mixture, start filling machine, the blanking velocity of adjustment mixture, mixture is filled in plastics tubing fully, then populated plastics tubing is carried out hot shearing, obtain electric cooker, the special covering property modified particles of electric cup of particle diameter at about 6mm.
Comparative example 1:
The talcum powder of the acrylic resin of 20 parts and 80 parts is put into banburying in Banbury mixer, then the material after banburying is put in double-screw extruding pelletizing machine, then extrude, cools, granulation, prepare the talcum powder polypropylene agglomerate of about 5mm particle diameter.
Comparative example 2:
The composite antioxidant B225 of the polyvinyl resin of 90 parts and 10 parts is dropped into high-speed mixing in mixing machine; then mixed material is put in double-screw extruding pelletizing machine; then extrude, cool, granulation, prepare the composite antioxidant B225 polyethylene master batch of about 4mm particle diameter.
Comparative example 3:
The composite antioxidant B215 of the acrylic resin of 90 parts and 10 parts, calcium stearate mixture are dropped into high-speed mixing in mixing machine; then mixed material is put in double-screw extruding pelletizing machine; then extrude, cool, granulation, prepare the composite antioxidant B215 of about 6mm particle diameter, calcium stearate polypropylene agglomerate.
Comparative example 4:
A certain proportion of PPAW191, PPK7726, PPF401, SBSYH-792, calcium carbonate are added in high-speed mixer, high-speed mixing 1min, then certain proportion Aluminate is added, low speed mixing 3min, again by superfine talcum powder, PP-g-MAH, 1010, DLTP, CaSt), EBS adds high-speed mixer high speed and mixes 1 minute, discharging.Adopt the blended granulation of rotating Vortex engagement type parallel double-screw extruder, obtain the dedicated modified particle of refrigerator drawer.
Comparative example 5:
By a certain proportion of PPK7726, PP8303, PP2401, POE8105,1010, DLTP, ZnSt, carbon black use high-speed mixer low speed mixing 1 minute, low speed mixing 3min by a certain percentage.Adopt the blended granulation of rotating Vortex engagement type parallel double-screw extruder, obtain the dedicated modified particle of bumper.
Comparative example 6:
A certain proportion of PPK7726 (Yanshan Petrochemical), PPT30S, ultra-fine barium sulfate are added in high-speed mixer, high-speed mixing 1min, then certain proportion Aluminate is added, low speed mixing 3min, again by 1010, DLTP, EBS, ultra-fine barium sulfate, nucleator add high-speed mixer high speed and mix 1 minute, discharging.Adopt the blended granulation of rotating Vortex engagement type parallel double-screw extruder, obtain electric cooker, the special dedicated modified particle of electric cup.
Compared master batch prepared by covering property master batch and the comparative example 1-3 of embodiment 1-6 gained, concrete outcome is as shown in table 1.
Compared modified particles prepared by covering property modified particles and the comparative example 4-6 of embodiment 7-9 gained, concrete outcome is as shown in table 2.
Table 1
As can be seen from Table 1, in embodiment, coating layer doses (carrier) plastifies the carrier doses in master batch in comparative example, and therefore the manufacturing cost of the embodiment of the present invention is lower than the manufacturing cost of comparative example.In addition, in embodiment, its antioxidant property of the coated master batch of oxidation inhibitor and simple anti-oxidant performance comparison are without any difference, and its antioxidant property of oxidation inhibitor master batch in comparative example decreases.
Table 2
As can be seen from Table 2, the basic indifference of master batch performance of its performance of covering property modified master batch and comparative example in embodiment 7-9, and production cost is lower than the production cost of comparative example.
The present invention is applied to that thermoplastic resin is produced, the every field of thermoplastic resin modified, thermoplastic resin processing, range of application and extensively.
Those skilled in the art it should be noted that embodiment described in the invention is only exemplary, can make other replacements various, changes and improvements within the scope of the invention.Thus, the invention is not restricted to above-mentioned embodiment, and be only defined by the claims.
Claims (14)
1. a covering property particle, comprising:
Coating, and
Coating layer, the complete coated described coating of described coating layer,
Wherein said coating is the mixture of one or more in thermoplastic resin modified weighting agent, pigment, additive, and described coating layer is resin.
2. covering property particle according to claim 1, wherein said coating layer be selected from PP, PE, ABS, PS, PA, PVC, FR, POM, PC and PET one or more.
3. covering property particle according to claim 1, the particle diameter 2-10mm of wherein said covering property particle, preferably 2.5-7mm, the thickness of described coating layer is 0.01-4.95mm, preferably 0.02-3.45mm.
4. covering property particle according to claim 1, wherein said covering property particle is covering property master batch or covering property modified particles.
5. covering property particle according to claim 4, wherein said covering property master batch is covering property talcum powder master batch, covering property glass fibre master batch, covering property black masterbatch, covering property carbon fiber master batch, covering property oxidation inhibitor master batch, covering property fire retardant master batch, covering property Masterbatch or covering property multifunctional mother granules.
6. covering property particle according to claim 4, wherein said covering property modified particles is that covering property MODIFIED PP particle, covering property modified PE particle, covering property modified ABS particle, covering property modification PS particle, covering property modification PA particle, covering property modified PVC particle, covering property modification POM particle, covering property modification PC particle, covering property modified PET are granule modified, covering property alloying pellet etc.
7. a preparation method for covering property particle, comprising:
Thermoplastic resin masterbatch is plastified, extrudes and tube drawing, obtain thermoplastic resin pipe;
Coating is filled in described thermoplastic resin pipe; And
Described thermoplastic resin pipe after filling is sheared, and makes the complete coated described coating of described thermoplastic resin pipe, obtain covering property particle.
8. preparation method according to claim 7, wherein said filling and described tube drawing carry out simultaneously or carry out described filling after described tube drawings.
9. preparation method according to claim 7, wherein said covering property grain diameter 2-10mm, preferably 2.5-7mm, the thickness of described coating layer is 0.01-4.95mm, preferably 0.02-3.45mm.
10. preparation method according to claim 7, wherein said thermoplastic resin masterbatch be selected from PP, PE, ABS, PS, PA, PVC, FR, POM, PC and PET one or more.
11. preparation methods according to claim 7, wherein said coating is the mixture of one or more in thermoplastic resin modified weighting agent, pigment, additive.
12. preparation methods any one of claim 7 to 11, wherein said shearing is carried out in the mode of hot shearing, is closed by coating layer while shearing, forms subsphaeroidal particle or the cylindrical particle of Full-enclosed leakless.
13. preparation methods any one of claim 7 to 11, wherein said shearing is carried out in the mode of cold shearing, forms the cylindrical particle that end face is not closed.
14. application of covering property particle in thermoplastic resin manufacture field any one of claim 1 to 6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111037774A (en) * | 2019-12-06 | 2020-04-21 | 联塑科技发展(武汉)有限公司 | Mixing control method for preplasticizing plastic powder |
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