CN107698848A - A kind of fragrant plastic masterbatch and preparation method thereof - Google Patents
A kind of fragrant plastic masterbatch and preparation method thereof Download PDFInfo
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- CN107698848A CN107698848A CN201711008478.9A CN201711008478A CN107698848A CN 107698848 A CN107698848 A CN 107698848A CN 201711008478 A CN201711008478 A CN 201711008478A CN 107698848 A CN107698848 A CN 107698848A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
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Abstract
The invention belongs to the preparing technical field of plastic matrix, there is provided a kind of fragrant plastic masterbatch and preparation method thereof.This method is using powdered plastic essence as masterbatch core, using LDPE resin powder as carrier, is equipped with other auxiliary agents, is pre-mixed in high-speed mixer；Then aerosol adhesive is added in high-speed mixer, its quick refrigeration is condensed into particle, essence powder and LDPE resin powder bonding are got up, and be well mixed under high-speed stirred effect with other components, through drying and crushing after discharging, fragrant plastic masterbatch is made.Compared with conventional method, masterbatch made from preparation method of the invention and essence is uniformly dispersed, lasting fragrance good with vector resin associativity, scatter and disappear relatively slow, while whole preparation process energy consumption is relatively low, it is pollution-free, it is simple to operate, easy to control, large-scale production can be achieved.
Description
Technical field
The invention belongs to the preparing technical field of plastic matrix, there is provided a kind of fragrant plastic masterbatch and preparation method thereof.
Background technology
Plastic matrix (Plastic Master batch) is that plastic additive super quantity is attached in resin and is made
Condensation product；When manufacturing plastic products, it is not necessary to this kind of plastic additive is added, only need to be proportionally added into this masterbatch,
Its advantage is：Technique is simple, easy to use, is easy to implement the production automation, raises labour productivity, and avoids environmental pollution again.
With the rapid development of plastics industry, a kind of filling master batch not still added material, the production costs of plastic products can be reduced,
Also there are some physical properties for improving plastic products, such as reduce breach shrinkage factor, improve outward appearance and feel characteristic and obtain
The accreditation in market, it has also become indispensable raw material in some plastic products.It is developed so far, kind is varied, such as fills out
Fill masterbatch, color masterbatch, flame-retardant master batch, antistatic master batch, wear-resisting masterbatch, multifunctional concentrate etc..
With the perfect raising of advanced technologies and production technology, kind, performance, the purposes of filling master batch are all adapting to market
Demand and constantly change.Wherein fragrant plastic masterbatch is a kind of very important work(for assigning the certain fragrance of polyolefine material
Energy sexupara material, its effect can enable product to send aromatic odor, give fresh, Shu Ya, pure and fresh sensation, add modeling
The use value of material products, can cover that plastic products are intrinsic or process in smell, excite customer's desire to purchase, play
Sales promotion function.Because of the advantageous characteristic of fragrant plastic, make its application in today's society more and more extensive.
Fragrance plastic matrix is the mixture for being uniformly dispersed aromachemicals high concentration in what Thermoplastic resin base material, main
To be made up of vector resin, essence, additive, by certain formula and processing technology, be evenly dispersed in essence specific
In vector resin.Vector resin is as high molecular polymer, and its molecular weight is big, and intermolecular distance is wide, and intermolecular various row
Row order so that make the validity composition of fumet into plastic molecules, form fumet and Polymer Structure is close
Multiphase body, dissipate fragrant purpose so as to reach.Because essence has the characteristic such as this low boiling point, volatile mostly, it is necessary to select fusing point low, add
Good, the easy to penetrate fragrant resin of work performance, therefore the bond strength and essence of essence and resin are disperseed in vector resin
Property be the stable fragrance plastic matrix of processability key.
Certain effect is achieved in terms of functional plastic masterbatch, especially fragrance plastic matrix both at home and abroad at present.Its
A kind of High-concentration polyolefin aromatic master batches of middle Gao et al. and preparation method thereof.Composition includes vector resin, essence, adsorbent, filled out
Agent, dispersant are filled, tri- kinds of resins of vector resin LLDPE, EVA, SBS, adsorbent is diatomite, and filler is calcium carbonate, point
Powder is Tissuemat E, and each component percentage by weight is LLDPE15-18%, EVA18-23%, SBS3-5%, essence 5-20%, diatom
Native 18-23%, calcium carbonate 10-25%, Tissuemat E 2-4%.Weigh material by formula rate, first by vector resin, adsorbent, fill out
Fill agent, dispersant is added in agitated kettle together, then essence is slowly added under moderate-speed mixer, finally uniform compound is put into same
Extruded into parallel double-screw extruder, expressing technique temperature parameter is controlled between 100-120 DEG C, through water-bath and cold front heavy rain
Masterbatch is made in pelletizing after drying.In addition, Wang et al. has invented a kind of aroma agglomerate for plastics and preparation method thereof, include perfume (or spice)
Essence, additive and vector resin, additive include kaolin, Tissuemat E, and described vector resin is ethane-acetic acid ethyenyl fat
Copolymer resin, each component can have following percent by weight proportioning:Essence:10-15%;Kaolin:55-60%;Tissuemat E:3-
4%;Ethylene-vinyl acetate c resin:26-28%.But there is the essence in preparation and vector resin essence exhaustion easily to ooze out
And volatilization, make resulting product fragrance be not easy to retain, scatter and disappear very fast, the shortcomings that aroma effect is poor, while preparation process is complicated, into
This height, it is unfavorable for large-scale promotion.
The content of the invention
The defects of easily being oozed out for existing plastics flavouring masterbatch, a kind of fragrant plastic masterbatch is proposed, with solid-phase resin and gas
The mixing of both collosol adhesives makes stock dispersion uniformly and strengthens combination, avoids oozing out.Can solve fragrant in Traditional flavor masterbatch
Essence and vector resin essence exhaustion are easily oozed out and volatilized, and make resulting product fragrance be not easy to retain, and scatter and disappear very fast, and aroma effect is poor to be lacked
Fall into.
Preparation method is further provided for, the mixed-powders such as vector resin powder, essence, auxiliary agent are added in high-speed mixer
High-temperature aerosol adhesive is pressed into afterwards, makes the fluffy suspension of powder, due to high-temperature aerosol adhesive and inner wall of mixer and resin
Contact and quick refrigeration, condense into and essence and toner are adhered to after particle, and under high-speed stirred effect with other raw material groups
Divide and uniformly mix, crushed after being dried obtains fragrance masterbatch.The remarkable result of the method be adhesive air-flow condense after enhance with
The adhesion of interlaminar resin, essence is not easy to ooze out and is volatilized, also ensure that essence is dispersed, while processing step is succinct and energy
Consume low.
To achieve the above object, adopt the following technical scheme that：
A kind of preparation method of fragrant plastic masterbatch, concrete technical scheme are as follows：
（1）Using powdered plastic essence as masterbatch core, using LDPE resin powder as carrier, then it is equipped with a certain proportion of scattered
Agent, antioxidant and heat stabilizer, are added in high-speed mixer, are pre-mixed under certain temperature and rotating speed；
（2）The adhesive of certain mass is placed in closed metal container, is pressed to form aerosol adhesive, then by aerosol
Bonding dose is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying,
And by the outlet of gas transportation machine and step（1）The gas feed of described high-speed mixer is connected；
（3）High-speed mixer is again started up, stirring makes the fluffy suspension of mixed-powder；After stirring is stable, starts gas transfer pump, make
High-temperature aerosol adhesive is pressed into mixer rapidly, aerosol adhesive and temperature relatively low inner wall of mixer and LDPE resin
Powder contact, quick refrigeration condense into particle, and essence powder and LDPE resin powder bonding are got up, and are acted in high-speed stirred
It is lower to be well mixed with other components；
（4）Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
Preferably, step（1）The particle diameter of the LDPE resin powder crosses 100 mesh sieves.
Preferably, step（1）The powdered plastics essence is the fragrance of a flower, fruity, tea perfume or hay-scented class essence, its high temperature resistant
Ability should reach more than 250 DEG C；
Preferably, step（1）The plastic essence and the mixing quality ratio of LDPE resin powder are 1:10~1:5；
Preferably, step（1）The dispersant is low molecule amount PE, atoleine or stearic acid, and its addition is LDPE resin
The 3 ~ 5% of powder quality；
Preferably, step（1）The antioxidant is dibutyl hydroxy toluene or TBHQ, and its addition is LDPE
The 0.5 ~ 1% of toner quality；
Preferably, step（1）The heat stabilizer is Pb stabilizer, such as dibasic lead stearate, hydration lead sulfate tribasic
Or dibasic lead phosphite, its addition are the 0.5 ~ 1% of LDPE resin powder quality；
Preferably, step（1）The temperature of the premixing is 40 ~ 50 DEG C, and rotating speed is 80 ~ 120r/min, and the time is 10 ~ 20min；
Preferably, step（2）Described adhesive is acrylic block copolymer；Aerosol adhesive is formed after pressurization.
Preferably, step（2）The pressurization, pressure 3-5MPa.
Preferably, step（2）The addition of described adhesive is the 4 ~ 6% of LDPE resin powder and essence quality summation；
Preferably, step（3）The temperature of the high-speed stirred mixing is 30 ~ 40 DEG C, and mixing speed is 150 ~ 200r/min.
A kind of fragrant plastic masterbatch, is prepared by the above method.Using powdered plastic essence as masterbatch core, with LDPE
Toner is carrier, is equipped with other auxiliary agents, is pre-mixed in high-speed mixer；Then aerosol adhesive is added high
In fast mixer, its quick refrigeration is condensed into particle, essence powder and LDPE resin powder bonding are got up, and in high-speed stirring
The effect of mixing is lower to be well mixed with other components, and through drying and crushing after discharging, fragrant plastic masterbatch is made.
In the present invention, the dispersing uniformity of the adhesion and essence of essence and LDPE resin, it is to influence fragrance masterbatch
An important factor for stable performance.It is aerosolized by adhesive for the adhesion of enhancing essence and LDPE resin, glued in aerosol
Mixture enters before high-speed mixer, should first make mixer stirring a period of time, to ensure that mixed-powder reaches fluffy suspension
State, mixing speed should properly increase, and aerosol adhesive is rapidly reached uniformly mixing after entering scattered.The temperature of mixed-powder
Degree should be controlled below 40 DEG C, to ensure adhesive and mixed-powder and the temperature difference of mixer wall, make adhesive quick refrigeration
Condense, essence powder and LDPE resin powder bonding are got up, its bond effect is more preferable.
The invention provides a kind of fragrant plastic masterbatch and preparation method thereof, compared with prior art, the characteristics of it is protruded
It is with excellent effect：
1. the preparation method of the present invention, adhesive is by first mode that is aerosolized, then condensing to the cold, by essence powder and LDPE
Toner bonds, and bond effect is preferable, and essence is not easy to ooze out and volatilized, and fragrance easily retains, and scatters and disappears slower.
2. the preparation method of the present invention, essence powder, LDPE resin powder and auxiliary agent are pre-mixed in high-speed mixer,
Mixed at high speed is carried out again before being contacted with aerosol adhesive so that the dispersed homogeneous degree of essence improves, and itself and aerosol
The contact of adhesive is more uniformly distributed.
3. the preparation method of the present invention, energy consumption is relatively low, and does not produce pollution, and the feature of environmental protection is good.
4. the preparation method of the present invention, simple to operate, it is easily controlled, properties of product are stable, and industrialized production can be achieved.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of fragrant plastic masterbatch and preparation method thereof, it is as follows that it prepares the detailed process of plastic matrix：
Using powdered plastic essence of the 1kg heat-resisting abilities more than 250 DEG C as masterbatch core, 8kgLDPE toners are made
For carrier, then 0.32kg stearic acid, 0.08kg dibutyl hydroxy toluenes and 0.08kg dibasic lead stearates are equipped with, are added to height
In fast mixer, premixing 10min is carried out at 50 DEG C of temperature and 80r/min rotating speed；By 0.45kg adhesive acrylic acid
Based block copolymer is fitted into closed metal container；Aerosol adhesive is formed after pressurization 3MPa；Then by aerosol adhesive
It is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying, and by gas
The outlet of conveyer is connected with the gas feed of high-speed mixer；Be again started up high-speed mixer, with 30 DEG C of temperature and
200r/min speed stirring makes the fluffy suspension of mixed-powder.After stirring is stable, starts gas transfer pump, glue high-temperature aerosol
Mixture is pressed into mixer rapidly, adhesive and the relatively low inner wall of mixer of temperature and LDPE resin powder contact, quick refrigeration
Particle is condensed into, essence powder and LDPE resin powder bonding are got up, and is mixed under high-speed stirred effect with other components
Uniformly；Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
The fragrant plastic masterbatch obtained to embodiment 1, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, and contrasted with common fragrance masterbatch, obtained data are as shown in table 1.It can be seen that：, can be obvious using the method for the present invention
The bond strength of essence and LDPE resin is improved, oozing out and volatilizing for essence is reduced, makes fragrance be more easy to retain, speed of scattering and disappearing drop
It is low.
Embodiment 2
A kind of fragrant plastic masterbatch and preparation method thereof, it is as follows that it prepares the detailed process of plastic matrix：
Using powdered plastic essence of the 1kg heat-resisting abilities more than 250 DEG C as masterbatch core, 9kgLDPE toners are made
For carrier, then 0.36kg atoleines, 0.09kg TBHQs and 0.09kg hydration lead sulfate tribasics are equipped with, added
Into high-speed mixer, premixing 20min is carried out at 40 DEG C of temperature and 80r/min rotating speed；By 5kg adhesive acrylic acid
Based block copolymer is fitted into closed metal container；Aerosol adhesive is formed after pressurization 4MPa；Then by aerosol adhesive
It is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying, and by gas
The outlet of conveyer is connected with the gas feed of high-speed mixer；Be again started up high-speed mixer, with 35 DEG C of temperature and
150r/min speed stirring makes the fluffy suspension of mixed-powder.After stirring is stable, starts gas transfer pump, glue high-temperature aerosol
Mixture is pressed into mixer rapidly, adhesive and the relatively low inner wall of mixer of temperature and LDPE resin powder contact, quick refrigeration
Particle is condensed into, essence powder and LDPE resin powder bonding are got up, and is mixed under high-speed stirred effect with other components
Uniformly；Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
The fragrant plastic masterbatch obtained to embodiment 2, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, and contrasted with common fragrance masterbatch, obtained data are as shown in table 1.It can be seen that：, can be obvious using the method for the present invention
The bond strength of essence and LDPE resin is improved, oozing out and volatilizing for essence is reduced, makes fragrance be more easy to retain, speed of scattering and disappearing drop
It is low.
Embodiment 3
A kind of fragrant plastic masterbatch and preparation method thereof, it is as follows that it prepares the detailed process of plastic matrix：
Using powdered plastic essence of the 1kg heat-resisting abilities more than 250 DEG C as masterbatch core, 5kgLDPE toners are made
For carrier, then 0.2kg stearic acid, 0.05kg TBHQs and 0.05kg dibasic lead stearates are equipped with, are added to height
In fast mixer, premixing 12min is carried out at 45 DEG C of temperature and 90r/min rotating speed；By 0.3kg adhesive acrylic acid series
Block copolymer is fitted into closed metal container；Aerosol adhesive is formed after pressurization 3MPa；Then aerosol adhesive is turned
Move in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying, and gas is defeated
The outlet of machine is sent to be connected with the gas feed of high-speed mixer；High-speed mixer is again started up, with 35 DEG C of temperature and 180r/
Min speed stirring makes the fluffy suspension of mixed-powder.After stirring is stable, starts gas transfer pump, make high-temperature aerosol adhesive
In rapid press-in mixer, adhesive and the relatively low inner wall of mixer of temperature and LDPE resin powder contact, quick refrigeration condense
Into particle, essence powder and LDPE resin powder bonding are got up, and are well mixed under high-speed stirred effect with other components；
Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
The fragrant plastic masterbatch obtained to embodiment 3, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, and contrasted with common fragrance masterbatch, obtained data are as shown in table 1.It can be seen that：, can be obvious using the method for the present invention
The bond strength of essence and LDPE resin is improved, oozing out and volatilizing for essence is reduced, makes fragrance be more easy to retain, speed of scattering and disappearing drop
It is low.
Embodiment 4
A kind of fragrant plastic masterbatch and preparation method thereof, it is as follows that it prepares the detailed process of plastic matrix：
Using powdered plastic essence of the 1kg heat-resisting abilities more than 250 DEG C as masterbatch core, 6kgLDPE toners are made
For carrier, then 0.24kg stearic acid, 0.06kg dibutyl hydroxy toluenes and 0.06kg dibasic lead phosphites are equipped with, are added to height
In fast mixer, premixing 15min is carried out at 50 DEG C of temperature and 100r/min rotating speed；By 0.35kg adhesive acrylic acid
Based block copolymer is fitted into closed metal container；Aerosol adhesive is formed after pressurization 5MPa；Then by aerosol adhesive
It is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying, and by gas
The outlet of conveyer is connected with the gas feed of high-speed mixer；Be again started up high-speed mixer, with 30 DEG C of temperature and
190r/min speed stirring makes the fluffy suspension of mixed-powder.After stirring is stable, starts gas transfer pump, glue high-temperature aerosol
Mixture is pressed into mixer rapidly, adhesive and the relatively low inner wall of mixer of temperature and LDPE resin powder contact, quick refrigeration
Particle is condensed into, essence powder and LDPE resin powder bonding are got up, and is mixed under high-speed stirred effect with other components
Uniformly；Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
The fragrant plastic masterbatch obtained to embodiment 4, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, and contrasted with common fragrance masterbatch, obtained data are as shown in table 1.It can be seen that：, can be obvious using the method for the present invention
The bond strength of essence and LDPE resin is improved, oozing out and volatilizing for essence is reduced, makes fragrance be more easy to retain, speed of scattering and disappearing drop
It is low.
Embodiment 5
A kind of fragrant plastic masterbatch and preparation method thereof, it is as follows that it prepares the detailed process of plastic matrix：
Using powdered plastic essence of the 1kg heat-resisting abilities more than 250 DEG C as masterbatch core, 7kgLDPE toners are made
For carrier, then 0.28kg atoleines, 0.07kg TBHQs and 0.07kg dibasic lead phosphites are equipped with, be added to
In high-speed mixer, premixing 18min is carried out at 40 DEG C of temperature and 90r/min rotating speed；By 0.4kg adhesive acrylic acid
Based block copolymer is fitted into closed metal container；Aerosol adhesive is formed after pressurization 3MPa；Then by aerosol adhesive
It is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying, and by gas
The outlet of conveyer is connected with the gas feed of high-speed mixer；Be again started up high-speed mixer, with 30 DEG C of temperature and
160r/min speed stirring makes the fluffy suspension of mixed-powder.After stirring is stable, starts gas transfer pump, glue high-temperature aerosol
Mixture is pressed into mixer rapidly, adhesive and the relatively low inner wall of mixer of temperature and LDPE resin powder contact, quick refrigeration
Particle is condensed into, essence powder and LDPE resin powder bonding are got up, and is mixed under high-speed stirred effect with other components
Uniformly；Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
The fragrant plastic masterbatch obtained to embodiment 5, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, and contrasted with common fragrance masterbatch, obtained data are as shown in table 1.It can be seen that：, can be obvious using the method for the present invention
The bond strength of essence and LDPE resin is improved, oozing out and volatilizing for essence is reduced, makes fragrance be more easy to retain, speed of scattering and disappearing drop
It is low.
Embodiment 6
A kind of fragrant plastic masterbatch and preparation method thereof, it is as follows that it prepares the detailed process of plastic matrix：
Using powdered plastic essence of the 1kg heat-resisting abilities more than 250 DEG C as masterbatch core, 8kgLDPE toners are made
For carrier, then 0.32kg stearic acid, 0.08kg dibutyl hydroxy toluenes and 0.08kg hydration lead sulfate tribasics are equipped with, be added to
In high-speed mixer, premixing 17min is carried out at 40 DEG C of temperature and 110r/min rotating speed；By 0.45kg adhesive propylene
Sour based block copolymer is fitted into closed metal container；Aerosol adhesive is formed after pressurization 5MPa；Then aerosol is bonded
Agent is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying, and by gas
The outlet of body conveyer is connected with the gas feed of high-speed mixer；Be again started up high-speed mixer, with 30 DEG C of temperature and
200r/min speed stirring makes the fluffy suspension of mixed-powder.After stirring is stable, starts gas transfer pump, glue high-temperature aerosol
Mixture is pressed into mixer rapidly, adhesive and the relatively low inner wall of mixer of temperature and LDPE resin powder contact, quick refrigeration
Particle is condensed into, essence powder and LDPE resin powder bonding are got up, and is mixed under high-speed stirred effect with other components
Uniformly；Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
The fragrant plastic masterbatch obtained to embodiment 6, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, and contrasted with common fragrance masterbatch, obtained data are as shown in table 1.It can be seen that：, can be obvious using the method for the present invention
The bond strength of essence and LDPE resin is improved, oozing out and volatilizing for essence is reduced, makes fragrance be more easy to retain, speed of scattering and disappearing drop
It is low.
Embodiment 7
A kind of fragrant plastic masterbatch and preparation method thereof, it is as follows that it prepares the detailed process of plastic matrix：
Using powdered plastic essence of the 1kg heat-resisting abilities more than 250 DEG C as masterbatch core, 10kgLDPE toners are made
For carrier, then 0.4kg atoleines, 0.1kg dibutyl hydroxy toluenes and 0.1kg dibasic lead phosphites are equipped with, are added to height
In fast mixer, premixing 18min is carried out at 45 DEG C of temperature and 90r/min rotating speed；By 0.55kg adhesive acrylic acid
Based block copolymer is fitted into closed metal container；Aerosol adhesive is formed after pressurization 4MPa；Then by aerosol adhesive
It is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying, and by gas
The outlet of conveyer is connected with the gas feed of high-speed mixer；Be again started up high-speed mixer, with 35 DEG C of temperature and
160r/min speed stirring makes the fluffy suspension of mixed-powder.After stirring is stable, starts gas transfer pump, glue high-temperature aerosol
Mixture is pressed into mixer rapidly, adhesive and the relatively low inner wall of mixer of temperature and LDPE resin powder contact, quick refrigeration
Particle is condensed into, essence powder and LDPE resin powder bonding are got up, and is mixed under high-speed stirred effect with other components
Uniformly；Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
The fragrant plastic masterbatch obtained to embodiment 7, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, and contrasted with common fragrance masterbatch, obtained data are as shown in table 1.It can be seen that：, can be obvious using the method for the present invention
The bond strength of essence and LDPE resin is improved, oozing out and volatilizing for essence is reduced, makes fragrance be more easy to retain, speed of scattering and disappearing drop
It is low.
Comparative example 1
Aerosol adhesive is not used, directly mixes essence with LDPE resin masterbatch, other formulas and process conditions and implementation
Example 6 is consistent.The fragrant plastic masterbatch obtained to comparative example 1, respectively behind 5 days, 30 days, half a year and 1 year, it is residual to test its fragrance
Office Copy, obtained data are as shown in table 1.
Table 1：
Claims (10)
1. a kind of preparation method of fragrant plastic masterbatch, concrete technical scheme are as follows：
（1）Using powdered plastic essence as masterbatch core, using LDPE resin powder as carrier, then it is equipped with a certain proportion of scattered
Agent, antioxidant and heat stabilizer, are added in high-speed mixer, are pre-mixed under certain temperature and rotating speed；
（2）The adhesive of certain mass is placed in closed metal container, is pressed to form aerosol adhesive, then by aerosol
Bonding dose is transferred in the gas transportation machine with heat insulation function, keeping temperature and pressure stability in transfer and course of conveying,
And by the outlet of gas transportation machine and step（1）The gas feed of described high-speed mixer is connected；
（3）High-speed mixer is again started up, stirring makes the fluffy suspension of mixed-powder；After stirring is stable, starts gas transfer pump, make
High-temperature aerosol adhesive is pressed into mixer rapidly, aerosol adhesive and temperature relatively low inner wall of mixer and LDPE resin
Powder contact, quick refrigeration condense into particle, and essence powder and LDPE resin powder bonding are got up, and are acted in high-speed stirred
It is lower to be well mixed with other components；
（4）Stop high-speed mixer, discharging, subsequently into plastic crusher, fragrant plastic masterbatch is produced after crushing.
A kind of 2. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（1）The LDPE
The particle diameter of toner crosses 100 mesh sieves.
A kind of 3. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（1）The powder
Shape plastic essence is that the fragrance of a flower, fruity, tea perfume or hay-scented class essence, its heat-resisting ability should reach more than 250 DEG C.
A kind of 4. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（1）The plastics
The mixing quality ratio of essence and LDPE resin powder is 1:10~1:5；Step（1）The dispersant is low molecule amount PE, liquid
Paraffin or stearic acid, its addition are the 3 ~ 5% of LDPE resin powder quality；The antioxidant be dibutyl hydroxy toluene or
TBHQ, its addition are the 0.5 ~ 1% of LDPE resin powder quality；The heat stabilizer is Pb stabilizer, such as
Dibasic lead stearate, hydration lead sulfate tribasic or dibasic lead phosphite, its addition are LDPE resin powder quality
0.5~1%。
A kind of 5. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（1）The premix
The temperature of conjunction is 40 ~ 50 DEG C, and rotating speed is 80 ~ 120r/min, and the time is 10 ~ 20min.
A kind of 6. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（2）The bonding
Agent is acrylic block copolymer.
A kind of 7. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（2）The bonding
The addition of agent is the 4 ~ 6% of LDPE resin powder and essence quality summation.
A kind of 8. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（2）The pressurization,
Pressure is 3-5MPa.
A kind of 9. preparation method of fragrant plastic masterbatch according to claim 1, it is characterised in that：Step（3）The high speed
The temperature being stirred is 30 ~ 40 DEG C, and mixing speed is 150 ~ 200r/min.
10. a kind of fragrant plastic masterbatch, it is characterized in being prepared by any one of claim 1-9 methods described.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112724528A (en) * | 2020-12-29 | 2021-04-30 | 上海普利特复合材料股份有限公司 | Polypropylene material with lasting fragrance and preparation method thereof |
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