CN109912886A - Composite master batch and preparation method thereof for polypropylene to-go box - Google Patents

Composite master batch and preparation method thereof for polypropylene to-go box Download PDF

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Publication number
CN109912886A
CN109912886A CN201910189384.9A CN201910189384A CN109912886A CN 109912886 A CN109912886 A CN 109912886A CN 201910189384 A CN201910189384 A CN 201910189384A CN 109912886 A CN109912886 A CN 109912886A
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polypropylene
box
master batch
preparation
composite master
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刘泽鹏
刘敬忠
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Quzhou Xinli Industry And Trade Co Ltd
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Quzhou Xinli Industry And Trade Co Ltd
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Priority to CN201910189384.9A priority Critical patent/CN109912886A/en
Publication of CN109912886A publication Critical patent/CN109912886A/en
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Abstract

The invention belongs to to-go box technical fields, and in particular to a kind of composite master batch and preparation method thereof for polypropylene to-go box;The preparation method includes: that nano-titanium dioxide and glass fibre are added in reaction kettle by (1), and coupling agent is added, and is stirred and is warming up to 55 ~ 70 DEG C, after 10 ~ 20min of isothermal holding, cooling, filtering, drying;(2) acrylic resin, other auxiliary agents, nano-titanium dioxide and glass fibre through coupling agent surface activation process are weighed, it is added to mixed processing in high-speed mixer, then by uniformly mixed material blanking into double screw extruder, through melting mixing, Melt Pump pressurization squeezes out, tie rod water cooling, pelletizing obtain the composite master batch;The present invention is by being modified processing to the filler being filled in acrylic resin, make which raises the binding abilities with acrylic resin, the intensity and toughness of acrylic resin are enhanced, prevents from being easily deformed when being applied to polypropylene to-go box, it is ensured that take out the reliability of dispatching.

Description

Composite master batch and preparation method thereof for polypropylene to-go box
Technical field
The invention belongs to to-go box technical fields, and in particular to a kind of composite master batch and its system for polypropylene to-go box Preparation Method.
Background technique
The meaning of packing is sometimes referred as had a meal outside, and the food materials that do not eat up dining box-packed is taken away well;It is usual when packing Use businessman provide low-cost disposable lunch-box, will be dropped after being finished, from this level for, beat The use of packet box is simultaneously few;But with the development of network electric business, take-away is progressed into our daily life, especially It is for office worker, point takes out an important component for becoming the every workday, is located at especially for those For office worker on the office building of higher floor, downstairs fast food restaurant is gone to eat with its equal elevator of taking time, not as good as early Take-away is set in advance, is waited take-away personnel that meal meal is delivered goods to the customers and is come easily, therefore, to-go box is widely used in a variety of applications.
Currently, businessman is in order to reduce cost, the to-go box used is often low in cost, and the performances such as intensity are also very poor, In the delivery process of take-away, to-go box is easily deformed, and is easy to happen food and is splashed;Alternatively, businessman is in order to avoid food Object is splashed, and to the sealing part of to-go box by the way of coating preservative film, brings inconvenience to having dinner for consumer.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of composite master batch for polypropylene to-go box, multiple using this The polypropylene to-go box that master batch is prepared is closed, has intensity height, toughness strong, the advantages of being unlikely to deform.
To achieve the goals above, the present invention is achieved by the following scheme:
A kind of preparation method of the composite master batch for polypropylene to-go box, comprising the following steps:
(1) nano-titanium dioxide and glass fibre are added in reaction kettle, coupling agent is added, be stirred and it is warming up to 55 ~ 70 DEG C, after 10 ~ 20min of isothermal holding, cooling, filtering, drying obtain the nano-titanium dioxide through coupling agent surface activation process And glass fibre;
(2) acrylic resin, other auxiliary agents, nano-titanium dioxide and glass through coupling agent surface activation process are weighed by formula ratio Glass fiber is added to 3 ~ 5min of mixed processing in high-speed mixer, then by uniformly mixed material blanking to twin-screw extrusion In machine, through melting mixing, Melt Pump pressurization is squeezed out, and tie rod water cooling, pelletizing obtains the composite master batch.
Preferably, the average grain diameter of the nano-titanium dioxide is 10 ~ 50nm.
Preferably, the diameter of the glass fibre is 20 ~ 40 μm, and length is 0.5 ~ 1.0mm.
Preferably, long chain branched polypropylene resin is contained in the acrylic resin, the long chain branched polypropylene resin accounts for 5 ~ 15wt% of the total dosage of acrylic resin;And with the standard of ISO 1133, under 230 DEG C, 2.16kg load, the length The melt mass flow rate of branched polypropylene resin is 1 ~ 10g/10min.
Preferably, other auxiliary agents include fire retardant, nucleating agent, antioxidant, dispersing agent, antistatic agent, light stabilization One of agent, lubricant or more than one composition.
Preferably, in step (2), the operating condition of the double screw extruder includes: that engine speed is 250 ~ 350r/ min;Each area's temperature are as follows: 170 ~ 180 DEG C of an area, 200 ~ 210 DEG C of 2nd area, 200 ~ 210 DEG C of 3rd area, 200 ~ 210 DEG C of 4th area, 5th area 200 ~ 210 DEG C, 200 ~ 210 DEG C of 6th area, 200 ~ 210 DEG C of 7th area, 200 ~ 210 DEG C of 8th area, 220 ~ 230 DEG C of die head.
The present invention also provides a kind of compound mothers for polypropylene to-go box being prepared using above-mentioned preparation method Grain.
Compared with prior art, the present invention has following technical effect that provided by the present invention for polypropylene to-go box The preparation method of composite master batch, by being modified processing to the filler being filled in acrylic resin, make which raises with it is poly- The binding ability of allyl resin, and significantly enhance the intensity and toughness of acrylic resin prevents from beating being applied to polypropylene It is easily deformed when packet box, it is ensured that take out the reliability of dispatching;
In the present invention, using in the acrylic resin mixed with long chain branched polypropylene resin, melt strength with higher, The intensity that acrylic resin product can significantly be improved reduces nanometer two by the addition of the long chain branched polypropylene resin The dosage of carbonoxide and glass fibre, reduces production cost.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Specific embodiment is closed, the present invention is furture elucidated.
The present invention provides a kind of preparation methods of composite master batch for polypropylene to-go box, comprising the following steps:
(1) nano-titanium dioxide and glass fibre are added in reaction kettle, coupling agent is added, be stirred and it is warming up to 55 ~ 70 DEG C, after 10 ~ 20min of isothermal holding, cooling, filtering, drying obtain the nano-titanium dioxide through coupling agent surface activation process And glass fibre;
(2) acrylic resin, other auxiliary agents, nano-titanium dioxide and glass through coupling agent surface activation process are weighed by formula ratio Glass fiber is added to 3 ~ 5min of mixed processing in high-speed mixer, then by uniformly mixed material blanking to twin-screw extrusion In machine, through melting mixing, Melt Pump pressurization is squeezed out, and tie rod water cooling, pelletizing obtains the composite master batch.
In the present invention, by the way that nano-titanium dioxide and glass fibre are filled by coupling agent modified processing and as filler In acrylic resin, nano-titanium dioxide and glass fibre and the acrylic resin after modification have very Good syncretizing effect effectively can not only have good intensity and toughness by the injection-molded finished of acrylic resin, moreover it is possible to prevent The obscission being easy to produce after incompatible component filling, it is ensured that reinforcing effect of the filler to acrylic resin finished product.
According to the present invention, in the present invention, the nano-titanium dioxide being filled in acrylic resin can be by daylight or light In UV activation and generate have high catalytic activity free radical, very strong photooxidation and reducing power can be generated, can be urged Change, photodissociation are attached to the various harmful substances of body surface, as the dosage of to-go box, can be realized good antibacterial effect Fruit.Under optimum condition, the average grain diameter of heretofore described nano-titanium dioxide is 10 ~ 50nm.
In the present invention, the glass fibre is filled in acrylic resin, in polyacrylic crystallization process, is provided mutually The carrier to interweave, it is ensured that the to-go box of injection molding intensity with higher and anti-deformation ability, to effectively raise The quality of to-go box avoids generating splashing for food during sending outside.Under optimum condition, heretofore described glass fibre Diameter be 20 ~ 40 μm, length be 0.5 ~ 1.0mm.
In the present invention, long chain branched polypropylene resin, the long chain branched polypropylene resin are contained in the acrylic resin Account for 5 ~ 15wt% of the total dosage of the acrylic resin;It is described under 230 DEG C, 2.16kg load and with the standard of ISO 1133 The melt mass flow rate of long chain branched polypropylene resin is 1 ~ 10g/10min.By the incorporation of the long chain branched polypropylene resin, The intensity that blend melt can not only be significantly improved makes the to-go box of injection molding intensity with higher and toughness, moreover it is possible to drop The manufacturing cost of low to-go box.
In the present invention, in order to improve the processing performance of acrylic resin, work in-process is also added into other auxiliary agents, described Other auxiliary agents include one of fire retardant, nucleating agent, antioxidant, dispersing agent, antistatic agent, light stabilizer, lubricant or one Kind or more composition.
Specifically, the fire retardant can be improved the flame retardant property of product, the present invention to the selection of specific fire retardant not Particular determination is done, can be well known to those skilled in the art, for example, the fire retardant is phosphorus flame retardant, specifically It selected from organic metal phosphinates based flame retardant, at room temperature for solid nitrogenous/phosphonium flame retardant and is at room temperature having for liquid One of machine phosphate ester flame retardants or combinations thereof.
In the present invention, the nucleating agent be diphenyl methylene sorbierite, two (to methyldiphenyl methylene) sorbierites or One of three (3,4- dimethyl diphenyl methylene) sorbierites.
In the present invention, antioxidant can be improved stability of the acrylic resin in melting extrusion process, described Antioxidant is the mixture of Hinered phenols and phosphite ester antioxidant.
In the present invention, the dispersing agent can be improved dispersibility of the filler in acrylic resin, the dispersion Agent is selected from least one of lignin fibre, oxidized polyethylene wax, glyceryl tristearate and calcium stearate.
In the present invention, the antistatic agent is selected from nitric acid 3- (stearoyl amino) propyl-dimethyl beta-hydroxyethyl ammonium, first Base sulfuric acid (3- lauramido) trimethyl ammonium, biphosphate stearoyl amino dimethyl beta-ethoxy salt, N- (3- alcoxyl Base -2- hydroxypropyl) monoethanolamine, C13-C16 alkyldiethanolamine, C14-C18 alkyldiethanolamine, octadecyl diethanol Compound, the polyoxyethylene dodecyl amine, laurel (dodecane) of amine, ethoxy alkylamine and the pure and mild silica of higher aliphatic One of or two or more mixing of base sodium sulfovinate and dilauryl sodium phosphate.
In the present invention, light stabilizer can be improved stability of the polypropylene articles in subsequent use process, the present invention couple The type of the light stabilizer does not do particular determination, can be those skilled in the art institute resin, for example, the light is stablized Agent is Hinered phenols light stabilizer.
In the present invention, the lubricant is selected from one of silicone, amides, polyethylene kind, stearic acid or several The mixture of kind.
In the present invention, the coupling agent is silane coupling agent.
According to the present invention, the present invention in, the operating condition of the double screw extruder include: engine speed be 250 ~ 350r/min;Each area's temperature are as follows: 170 ~ 180 DEG C of an area, 200 ~ 210 DEG C of 2nd area, 200 ~ 210 DEG C of 3rd area, 200 ~ 210 DEG C of 4th area, Five 200 ~ 210 DEG C of areas, 200 ~ 210 DEG C of 6th area, 200 ~ 210 DEG C of 7th area, 200 ~ 210 DEG C of 8th area, 220 ~ 230 DEG C of die head.
The present invention also provides a kind of compound mothers for polypropylene to-go box being prepared using above-mentioned preparation method Grain, the polypropylene to-go box being prepared using the composite master batch have intensity high, and toughness is strong, and the advantages of be unlikely to deform, have The problem of preventing polypropylene to-go box to cause food to splash during sending outside of effect, improves the reliability of take-away.
In the present invention, the composite master batch for polypropylene to-go box includes that the raw material of following parts by weight is prepared: 70 ~ 90 parts by weight of acrylic resin, 0.5 ~ 1.2 parts by weight of nano-titanium dioxide, 2 ~ 5 parts by weight of glass fibre, coupling agent 0.8 ~ 2 part, 0.5 ~ 1.5 parts by weight of other auxiliary agents.
The present invention also provides a kind of methods for preparing polypropylene to-go box using above-mentioned composite master batch, including following step It is rapid:
(1) acrylic resin is dried;
(2) acrylic resin, the composite master batch after drying are added in high-speed kneading machine and are mixed to get mixed material;
(3) mixed material is added in double screw extruder, tie rod, pelletizing after melt blending, obtains mixing pellet;
(4) release agent is coated in molding die, is preheated to 50 ~ 60 DEG C, is injected into using plastic injection equipment by pellet is mixed In pattern tool, molding polypropylene to-go box is cooling, finishing, sizing, obtain the polypropylene to-go box after demoulding.
In the above method, the barrel temperature of the double screw extruder is 175 ~ 185 DEG C, and die head temperature is 190 ~ 200 DEG C.
In the above method, the barrel temperature of the plastic injection equipment is 245 ~ 250 DEG C, and equipment temperature is 25 ~ 30 DEG C, injection Pressure is 15 ~ 20MPa.
Below by way of specific embodiment to provided by the present invention for polypropylene to-go box composite master batch and its preparation Method makes further instructions.
Embodiment 1
A kind of preparation method of the composite master batch for polypropylene to-go box, comprising the following steps:
(1) nano-titanium dioxide and glass fibre are added in reaction kettle, silane coupling agent is added, is stirred and is warming up to 60 DEG C, after isothermal holding 15min, cooling, filtering, drying obtain the nano-titanium dioxide through silane coupling agent surface activation process And glass fibre;
The average grain diameter of the nano-titanium dioxide is 30nm;
The diameter of the glass fibre is 30 μm, length 0.8mm;
(2) by formula ratio weigh acrylic resin, phosphorus flame retardant, nucleating agent diphenyl methylene sorbierite, antioxidant 1010, Irgasfos 168, dispersing agent lignin fibre, antistatic agent octadecyldiethanol amine, Hinered phenols light stabilizer, silicone Lubricant, nano-titanium dioxide and glass fibre through silane coupling agent surface activation process are added in high-speed mixer and mix Processing 5min is closed, then by uniformly mixed material blanking into double screw extruder, through melting mixing, Melt Pump pressurization is squeezed Out, tie rod water cooling, pelletizing obtain the composite master batch.
The operating condition of the double screw extruder includes: that engine speed is 300r/min;
Contain long chain branched polypropylene resin in the acrylic resin, and to account for acrylic resin total for the long chain branched polypropylene resin 10wt% is measured, with the standard of ISO 1133, under 230 DEG C, 2.16kg load, the melt quality of the long chain branched polypropylene resin Flow rate is 8g/10min;
Each area's temperature are as follows: 170 ~ 180 DEG C of an area, 200 ~ 210 DEG C of 2nd area, 200 ~ 210 DEG C of 3rd area, 200 ~ 210 DEG C of 4th area, 5th area 200 ~ 210 DEG C, 200 ~ 210 DEG C of 6th area, 200 ~ 210 DEG C of 7th area, 200 ~ 210 DEG C of 8th area, 220 ~ 230 DEG C of die head.
The composite master batch includes that the raw material of following parts by weight is prepared: 80 parts by weight of acrylic resin, nano-silica Change 1 parts by weight of titanium, 3 parts by weight of glass fibre, 1.5 parts of silane coupling agent, 0.1 parts by weight of phosphorus flame retardant, nucleating agent two 0.1 parts by weight of benzylidene sorbierite, 0.2 parts by weight of antioxidant 1010,0.1 parts by weight of irgasfos 168, dispersing agent are wooden 0.1 parts by weight of cellulose fiber, 0.1 parts by weight of antistatic agent octadecyldiethanol amine, 0.05 weight of Hinered phenols light stabilizer Part, 0.05 parts by weight of silicone series lubricant agent.
Prepare polypropylene to-go box using the composite master batch being prepared, specific preparation method the following steps are included:
(1) acrylic resin is dried;
(2) acrylic resin, the composite master batch after drying are added in high-speed kneading machine and are mixed to get mixed material;Wherein, The weight ratio of acrylic resin and composite master batch after drying is 4:1;
(3) mixed material is added in double screw extruder, tie rod, pelletizing after melt blending, obtains mixing pellet;
The barrel temperature of the double screw extruder is 175 ~ 185 DEG C, and die head temperature is 198 ~ 200 DEG C;
(4) release agent is coated in molding die, is preheated to 55 DEG C, is injected into shaping mould for pellet is mixed using plastic injection equipment In tool, molding polypropylene to-go box is cooling, finishing, sizing, obtain the polypropylene to-go box after demoulding;
The barrel temperature of the plastic injection equipment is 250 DEG C, and equipment temperature is 30 DEG C, injection pressure 18MPa.
Embodiment 2
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the nano-silica The average grain diameter for changing titanium is 10nm;Remaining is constant, composite master batch is prepared according to the method for embodiment 1, and mention by embodiment 1 Polypropylene to-go box is prepared in the method for confession.
Embodiment 3
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the nano-silica The average grain diameter for changing titanium is 50nm;Remaining is constant, composite master batch is prepared according to the method for embodiment 1, and mention by embodiment 1 Polypropylene to-go box is prepared in the method for confession.
Embodiment 4
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the glass fibre Diameter be 20 μm, length 1.0mm;Remaining is constant, composite master batch is prepared according to the method for embodiment 1, and by implementation Polypropylene to-go box is prepared in the method that example 1 provides.
Embodiment 5
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the glass fibre Diameter be 40 μm, length 0.5mm;Remaining is constant, composite master batch is prepared according to the method for embodiment 1, and by implementation Polypropylene to-go box is prepared in the method that example 1 provides.
Embodiment 6
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the polypropylene tree The long chain branched polypropylene resin contained in rouge accounts for the 5wt% of the acrylic resin total amount;Remaining is constant, according to the side of embodiment 1 Composite master batch is prepared in method, and polypropylene to-go box is prepared by the method that embodiment 1 provides.
Embodiment 7
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the polypropylene tree The long chain branched polypropylene resin contained in rouge accounts for the 15wt% of the acrylic resin total amount;Remaining is constant, according to embodiment 1 Composite master batch is prepared in method, and polypropylene to-go box is prepared by the method that embodiment 1 provides.
Embodiment 8
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the composite master batch Raw material including following parts by weight is prepared: 70 parts by weight of acrylic resin, 0.5 parts by weight of nano-titanium dioxide, glass 2 parts by weight of fiber, 0.8 part of silane coupling agent, 0.07 parts by weight of phosphorus flame retardant, nucleating agent diphenyl methylene sorbierite 0.03 parts by weight, 0.1 parts by weight of antioxidant 1010,0.05 parts by weight of irgasfos 168,0.03 weight of dispersing agent lignin fibre Measure part, 0.02 parts by weight of antistatic agent octadecyldiethanol amine, 0.1 parts by weight of Hinered phenols light stabilizer, silicone profit 0.1 parts by weight of lubrication prescription;Remaining is constant, and composite master batch, and the side provided by embodiment 1 are prepared according to the method for embodiment 1 Polypropylene to-go box is prepared in method.
Embodiment 9
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the composite master batch Raw material including following parts by weight is prepared: 90 parts by weight of acrylic resin, 1.2 parts by weight of nano-titanium dioxide, glass 5 parts by weight of fiber, 2 parts of silane coupling agent, 0.3 parts by weight of phosphorus flame retardant, nucleating agent diphenyl methylene sorbierite 0.1 Parts by weight, 0.3 parts by weight of antioxidant 1010,0.15 parts by weight of irgasfos 168,0.05 weight of dispersing agent lignin fibre Part, 0.2 parts by weight of antistatic agent octadecyldiethanol amine, 0.2 parts by weight of Hinered phenols light stabilizer, silicone lubrication 0.2 parts by weight of agent;Remaining is constant, and composite master batch, and the method provided by embodiment 1 are prepared according to the method for embodiment 1 Polypropylene to-go box is prepared.
Comparative example 1
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the nano-silica The average grain diameter for changing titanium is 80nm;Remaining is constant, composite master batch is prepared according to the method for embodiment 1, and mention by embodiment 1 Polypropylene to-go box is prepared in the method for confession.
Comparative example 2
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the glass fibre Diameter be 50 μm, length 1.0mm;Remaining is constant, composite master batch is prepared according to the method for embodiment 1, and by implementation Polypropylene to-go box is prepared in the method that example 1 provides.
Comparative example 3
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the polypropylene tree The long chain branched polypropylene resin contained in rouge accounts for the 2wt% of the acrylic resin total amount;Remaining is constant, according to the side of embodiment 1 Composite master batch is prepared in method, and polypropylene to-go box is prepared by the method that embodiment 1 provides.
Comparative example 4
As embodiment 1 provide the composite master batch for polypropylene to-go box preparation method, the difference is that, the composite master batch Raw material including following parts by weight is prepared: 90 parts by weight of acrylic resin, 0.3 parts by weight of nano-titanium dioxide, glass 1 parts by weight of fiber, 0.8 part of silane coupling agent, 0.1 parts by weight of phosphorus flame retardant, nucleating agent diphenyl methylene sorbierite 0.1 parts by weight, 0.2 parts by weight of antioxidant 1010,0.1 parts by weight of irgasfos 168,0.07 weight of dispersing agent lignin fibre Part, 0.03 parts by weight of antistatic agent octadecyldiethanol amine, 0.1 parts by weight of Hinered phenols light stabilizer, silicone lubrication 0.1 parts by weight of agent;Remaining is constant, and composite master batch, and the method provided by embodiment 1 are prepared according to the method for embodiment 1 Polypropylene to-go box is prepared.
Performance test:
It is beaten according to the polypropylene that the regulation of GB/T 1043.1-2008 tests the provided formula of above-described embodiment 1-9, comparative example 1-4 The performance of packet box, and test result is recorded in table 1.
Table 1:
Tensile strength (MPa) Impact strength (MJ/m2)
Embodiment 1 569.2 93.8
Embodiment 2 584.6 95.4
Embodiment 3 554.2 91.5
Embodiment 4 571.4 94.6
Embodiment 5 556.7 91.6
Embodiment 6 537.4 90.4
Embodiment 7 598.4 94.6
Embodiment 8 564.8 93.7
Embodiment 9 567.4 93.6
Comparative example 1 463.8 80.6
Comparative example 2 478.7 80.4
Comparative example 3 428.4 75.4
Comparative example 4 534.8 81.5
Basic principles and main features and the features of the present invention of the invention have been shown and described above.The technical staff of the industry It should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe the present invention Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and Improvement is both fallen in the range of claimed invention.The scope of protection of present invention by appended claims and its Equivalent thereof.

Claims (7)

1. a kind of preparation method of the composite master batch for polypropylene to-go box, it is characterised in that: the following steps are included:
(1) nano-titanium dioxide and glass fibre are added in reaction kettle, coupling agent is added, be stirred and it is warming up to 55 ~ 70 DEG C, after 10 ~ 20min of isothermal holding, cooling, filtering, drying obtain the nano-titanium dioxide through coupling agent surface activation process And glass fibre;
(2) acrylic resin, other auxiliary agents, nano-titanium dioxide and glass through coupling agent surface activation process are weighed by formula ratio Glass fiber is added to 3 ~ 5min of mixed processing in high-speed mixer, then by uniformly mixed material blanking to twin-screw extrusion In machine, through melting mixing, Melt Pump pressurization is squeezed out, and tie rod water cooling, pelletizing obtains the composite master batch.
2. the preparation method of the composite master batch according to claim 1 for polypropylene to-go box, wherein the nanometer two The average grain diameter of titanium oxide is 10 ~ 50nm.
3. the preparation method of the composite master batch according to claim 1 for polypropylene to-go box, wherein the glass fibers The diameter of dimension is 20 ~ 40 μm, and length is 0.5 ~ 1.0mm.
4. the preparation method of the composite master batch according to claim 1 for polypropylene to-go box, wherein described poly- third In olefine resin contain long chain branched polypropylene resin, the long chain branched polypropylene resin account for the total dosage of the acrylic resin 5 ~ 15wt%;And with the standard of ISO 1133, under 230 DEG C, 2.16kg load, the melt quality of the long chain branched polypropylene resin Flow rate is 1 ~ 10g/10min.
5. the preparation method of the composite master batch according to claim 1 for polypropylene to-go box, wherein described is other Auxiliary agent include one of fire retardant, nucleating agent, antioxidant, dispersing agent, antistatic agent, light stabilizer, lubricant or it is a kind of with On composition.
6. the preparation method of the composite master batch according to claim 1 for polypropylene to-go box, wherein in step (2), The operating condition of the double screw extruder includes: that engine speed is 250 ~ 350r/min;
Each area's temperature are as follows: 170 ~ 180 DEG C of an area, 200 ~ 210 DEG C of 2nd area, 200 ~ 210 DEG C of 3rd area, 200 ~ 210 DEG C of 4th area, 5th area 200 ~ 210 DEG C, 200 ~ 210 DEG C of 6th area, 200 ~ 210 DEG C of 7th area, 200 ~ 210 DEG C of 8th area, 220 ~ 230 DEG C of die head.
7. what a kind of preparation method as described in claim 1 ~ 6 any one was prepared is used for the compound of polypropylene to-go box Master batch.
CN201910189384.9A 2019-03-13 2019-03-13 Composite master batch and preparation method thereof for polypropylene to-go box Pending CN109912886A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594978A (en) * 2007-01-31 2009-12-02 保瑞利斯科技公司 The application of long-chain branch polypropylene broadening range of work in injection stretch blow molding
CN103965544A (en) * 2013-01-25 2014-08-06 上海杰事杰新材料(集团)股份有限公司 High strength antibacterial polypropylene composite material and preparation method thereof
CN106543559A (en) * 2016-10-17 2017-03-29 广东聚石化学股份有限公司 A kind of preparation method of expanded polypropylene beads
US20190002678A1 (en) * 2015-08-13 2019-01-03 3M Innovative Properties Company Polyolefin composition comprising hollow glass microspheres

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594978A (en) * 2007-01-31 2009-12-02 保瑞利斯科技公司 The application of long-chain branch polypropylene broadening range of work in injection stretch blow molding
CN103965544A (en) * 2013-01-25 2014-08-06 上海杰事杰新材料(集团)股份有限公司 High strength antibacterial polypropylene composite material and preparation method thereof
US20190002678A1 (en) * 2015-08-13 2019-01-03 3M Innovative Properties Company Polyolefin composition comprising hollow glass microspheres
CN106543559A (en) * 2016-10-17 2017-03-29 广东聚石化学股份有限公司 A kind of preparation method of expanded polypropylene beads

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