CN110437527A - Long afterglow PE master batch, preparation method, PE plastic part and preparation method thereof - Google Patents
Long afterglow PE master batch, preparation method, PE plastic part and preparation method thereof Download PDFInfo
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- CN110437527A CN110437527A CN201910763778.0A CN201910763778A CN110437527A CN 110437527 A CN110437527 A CN 110437527A CN 201910763778 A CN201910763778 A CN 201910763778A CN 110437527 A CN110437527 A CN 110437527A
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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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- 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
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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Abstract
The present invention relates to technical field of composite materials, in particular to long afterglow PE master batch, preparation method, PE plastic part and preparation method thereof.Long afterglow PE master batch, in parts by weight, raw material include 28-68.5 parts of PE resins, 0.3 part -1 part of dispersing agent, 0.5 part -5 parts of heat stabilizer and 30 parts -70 parts of luminescent powder, and luminescent powder is bonded with the formation of PE resin in long afterglow PE master batch.Noctilucence powder content can achieve 30-70% in long afterglow PE master batch of the invention, and luminescent powder is uniformly dispersed, and long afterglow PE master batch is bright-colored, fluorescent lifetime is long and brightness is high.
Description
Technical field
The present invention relates to technical field of composite materials, mould in particular to long afterglow PE master batch, preparation method, PE
Expect product and preparation method thereof.
Background technique
Luminescent powder is a variety of rare-earth ion activated aluminates, after being irradiated and heating by light, when can be long in the dark
Between continuous illumination.And polyethylene (polyethylene, abbreviation PE) is a kind of aggregated thermoplasticity PE resin obtained of ethylene, nothing
Smelly, nontoxic, with excellent resistance to low temperature (minimum to use reachable -100~-70 DEG C of temperature), chemical stability is good, is resistant to big
The erosion of most soda acids does not dissolve in common solvent under room temperature, and water imbibition is small, and electrical insulating property is excellent.Luminescent powder is added to PE resin
Plastics in Noctilucent material obtained can be widely used in the fields such as toy, decoration, clothes, outdoor sign.Processing system at this stage
When standby noctilucence PE resin, blow molding or injection molding after being generally mixed directly luminescent powder and PE resin variety used, gained
Luminescent powder mass fraction is 5%-15% in product, but there are luminescent powder dispersion unevenness, luminescent powders to contain for PE noctilucence master batch on the market
It measures that low, master batch is black, light emission luminance is small, fluorescent lifetime is short, adds this kind of master batch molded article mechanical property and reduces etc. and ask
Topic.
In consideration of it, the present invention is specifically proposed.
Summary of the invention
The purpose of the present invention is to provide long afterglow PE master batch, it is intended to provide a kind of noctilucence powder content 30% or more,
The long afterglow PE master batch that light emission luminance is high, lighting time interval is long, color is vivid.
Another object of the present invention is to provide a kind of preparation methods of long afterglow PE master batch, and this method is easy to operate, item
Part is mild, and convenient to carry out.
Another object of the present invention is to provide a kind of PE plastic part, which has good tensile strength
And bending strength.
Another object of the present invention is to provide a kind of preparation methods of PE plastic part, and this method is easy to operate, is conducive to
Process implementing.
The present invention is implemented as follows:
In a first aspect, the embodiment of the present invention provides a kind of long afterglow PE master batch, in parts by weight, raw material includes 28-
68.5 parts of PE resins, 0.3 part -1 part of dispersing agent, 0.5 part -5 parts of heat stabilizer and 30 parts -70 parts of luminescent powder, and it is long
Luminescent powder is bonded with the formation of PE resin in twilight sunset PE master batch；
Preferably, it is to form key by hydrogen bond and Van der Waals force that luminescent powder is bonded with the formation of PE resin in long afterglow PE master batch
It closes.
In alternative embodiments, in parts by weight, raw material includes point of 28.5-34 parts of PE resins, 0.5 part -1 part
Powder, 1 part -5 parts of heat stabilizer and 60 parts -70 parts of luminescent powder.
In alternative embodiments, PE resin is graft polymers；
Preferably, grafting rate 0.1-2%；It is highly preferred that being 0.5%-1.0%；
Preferably, the graft polymers is PE-MAH.
In alternative embodiments, the dispersing agent is dissaving polymer；
The heat stabilizer is zinc stearate or calcium stearate；
The luminescent powder is rare earth aluminate oxide.
In alternative embodiments, when shining 1 minute when after-glow brightness is tested, the twilight sunset of the long afterglow PE master batch is bright
Degree is greater than 1900mcd/m2, it is preferable that it is 1968.32-2485.36mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 510mcd/m when shining 5 minutes2, it is preferable that it is 515.69-
685.57mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 250mcd/m when shining 10 minutes2, it is preferable that it is 257.92-
358.46mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 80mcd/m when shining 30 minutes2, it is preferable that it is 80.77-
113.28mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 35mcd/m when shining 60 minutes2, it is preferable that it is 36.25-
53.55mcd/m2。
Second aspect, the embodiment of the present invention provide the preparation such as the described in any item long afterglow PE master batches of aforementioned embodiments
Method, comprising the following steps: extrusion molding after mixing PE resin, dispersing agent, heat stabilizer and luminescent powder.
In alternative embodiments, the process conditions of hot-melt extruded are as follows: temperature is 140-160 DEG C, revolving speed 200-
500r/min；
Preferably, temperature is 160 DEG C, revolving speed 500r/min；
Preferably, hybrid technique condition are as follows: revolving speed 20-200r/min, time are 2-20 minutes；
It is highly preferred that revolving speed is 200r/min, the time is 10 minutes.
The third aspect, the embodiment of the present invention provide a kind of PE plastic part, by described in any one of aforementioned embodiments
Long afterglow PE master batch be prepared.
In alternative embodiments, raw material includes substrate and the long afterglow PE master batch, and substrate and long afterglow PE
The quality proportioning of master batch is (2-6): 1；
Preferably, the mass content of luminescent powder is 5-20% in the PE plastic part, it is preferable that is 5%-10%；
Preferably, the tensile strength of PE plastic part is 14.36-18.25MPa, and the bending strength is 13.88-
16.39MPa。
Fourth aspect, the embodiment of the present invention provide a kind of preparation method of PE plastic part, by the long afterglow PE master batch
It is molded after being mixed with substrate.
Preferably, substrate is polyethylene, further preferably high density polyethylene (HDPE)；
Preferably, the temperature of injection molding is 200 DEG C to 240 DEG C.
The invention has the following advantages: generating bonding action by PE resin and luminescent powder, PE resin binder is promoted
With the compatibility of luminescent powder, reduction prepares the structural damage of luminescent powder and the generation of iron filings in long afterglow PE master batch
Deng being also beneficial to luminescent powder is uniformly dispersed, and is able to ascend the content of luminescent powder, guarantees the light emission luminance of long afterglow PE master batch, holds
Continuous time and color are vivid, also guarantee the mechanical property of the PE plastic part of long afterglow PE master batch preparation.Dispersing agent can be effective
Increase dispersibility of the luminescent powder in base-material, luminescent powder is avoided to reunite, is conducive to increase luminescent powder in long afterglow PE master batch
Content, guarantee that the light emission luminance of long afterglow PE master batch, duration and color are vivid.Heat stabilizer is able to ascend the heat of base-material
Stability, can be reduced that master batch color caused by degradation with aging in process is dimmed, guarantee that the color of long afterglow PE master batch is vivid.
It is interacted by above-mentioned substance so that noctilucence powder content can achieve 30-70% in long afterglow PE master batch, and luminescent powder disperses
Uniformly, long afterglow PE master batch is bright-colored, fluorescent lifetime is long and brightness is high.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Feature and performance of the invention are described in further detail with reference to embodiments.
In the prior art long afterglow PE master batch there are luminescent powder dispersion it is uneven, black, light emission luminance is small, fluorescent lifetime
It is short, add the problems such as this kind of master batch molded article mechanical property reduces, inventor studies the reason of discovery leads to the above problem can
Can be that noctilucence powder particles are larger, with PE resin binder compatibility it is poor both cause during melt extrusion with screw rod, squeeze out
The metal parts such as machine inner wall rub, while under the action of shear force, and the structure of luminescent powder is destroyed, luminous efficiency drop
Low, this external screw rod and inner wall surface metal to form iron filings by scraping, this is but also master batch color is dimmed.Just because of above-mentioned original
Cause so that in long afterglow PE master batch i.e. long afterglow PE master batch the mass percent used in amounts of luminescent powder to control 30% with
It is interior.The low noctilucence master batch of this low concentration, light emission luminance is unable to satisfy the application demand of high-end market.
In consideration of it, the present invention provides a kind of long afterglow PE master batch, in parts by weight, raw material includes 28-68.5 parts of PE trees
Rouge, 0.3 part -1 part of dispersing agent, 0.5 part -5 parts of heat stabilizer and 30 parts -70 parts of luminescent powder.Preferably, with parts by weight
Meter, raw material include 28.5-34 parts of PE resins, 0.5 part -1 part of dispersing agent, 1 part -5 parts of heat stabilizer and 60 parts -70 parts
Luminescent powder.Compared with prior art, luminescent powder mass percent content is high in long afterglow PE master batch of the invention, noctilucence silty
Amount percentage can be to 30%-70% and luminescent powder is uniformly dispersed in long afterglow PE master batch, so that long afterglow PE master batch has
Without black, bright-colored, fluorescent lifetime is long, light emission luminance is high the advantages that.
Specifically, it is bonded by PE resin in long afterglow PE master batch with luminescent powder formation, and the bonding is hydrogen bond and Fan De
The bonding action of Hua Li then promotes the compatibility of PE resin and luminescent powder, so that luminescent powder and machine during blending extrusion
The friction of device is reduced, and preferably protects the structure of luminescent powder, while also improving PE resin and luminescent powder in subsequent Injection moulded part
Interface interaction power, so that the mechanical strength of composite material increases, meanwhile, the content of luminescent powder in long afterglow PE master batch is promoted, into
One step promotes light emission luminance and lighting time interval.
And dispersibility of the luminescent powder in PE resin can be effectively increased by adding dispersing agent, preferably enter PE resin matrix,
It avoids luminescent powder from reuniting, mitigates the friction of luminescent powder and machine, to reduce the structural damage of luminescent powder, guarantee more than length
Brightness PE master batch it is bright-colored, and the temperature of hot-melt extruded can be reduced simultaneously, mitigate the degradation with aging degree of PE resin, guarantee length
The illumination effect of twilight sunset PE master batch.
Addition heat stabilizer can also enhance the thermal stability of PE resin, mitigate master batch caused by degradation with aging in process
Color is dimmed, guarantees that the color of long afterglow PE master batch is vivid.And the proportion of each material is further controlled, it can be further ensured that
Luminescent powder is good compatible with PE resin, during the preparation process, the structure of luminescent powder it is complete, then guarantee long afterglow PE master batch
Fluorescent lifetime is long, and light emission luminance is high, and color is vivid.
Further, PE resin is graft polymers；
Preferably, grafting rate 0.1-2%；It is highly preferred that being 0.5%-1.0%；
Preferably, the graft polymers is that PE-MAH, that is, maleic anhydride is grafted PE；
PE is grafted using maleic anhydride, be more advantageous to promote luminescent powder and PE resin in long afterglow PE master batch be bonded work
With then the illumination effect of guarantee long afterglow PE master batch, is also beneficial to promote the PE plastics system of subsequent long afterglow PE master batch preparation
The mechanical performance of part.
The graft polymers is prepared as those skilled in the art's routine experiment, and the present invention is no longer described in detail.
Further, above-mentioned dispersing agent is dissaving polymer.Such as the limited public affairs of the river Guangdong Weng chemical reagent can be used
Take charge of at least one of C100, C181, HyPerC10, HyPerC20, HyPerC30 and HyPerC40 of production.Using above-mentioned
Dispersing agent can further promote being uniformly mixed for luminescent powder and PE resin, prevent luminescent powder from assembling, and also reduce the old of PE resin
Change, then guarantees the illumination effect of long afterglow PE master batch.
Further, heat stabilizer is stearic acid compound, preferably stearate, more preferably zinc stearate or hard
Resin acid calcium can be further reduced the aging of PE resin in preparation process using above-mentioned heat stabilizer, guarantee long afterglow PE master batch
Luminescent color it is vivid, fluorescent lifetime is long and brightness is high.
Further, luminescent powder is rare earth aluminate oxide.Such as it can be ground using Guangdong Province's rare metal research institute
At least one of GL-4A, GL-8C, BL-2A, HL-730 and HL-825 of hair or it is existing in other luminescent powders can also.Using
Above-mentioned luminescent powder can be further ensured that luminescent powder and PE resin form the bonding of hydrogen bond and Van der Waals force, then be more advantageous to two
Person is compatible, facilitates luminescent powder and is uniformly dispersed, and can effectively reduce extent of the destruction of the structure of luminescent powder in processing technology, and
It is able to ascend the content of luminescent powder, light emission luminance, duration and the color for then promoting long afterglow PE master batch are vivid.
Further, the long afterglow PE master batch being prepared can be guaranteed in after-glow brightness by above-mentioned raw materials and proportion
When shining 1 minute when test, the after-glow brightness of long afterglow PE master batch is greater than 1900mcd/m2, it is preferable that it is 1968.32-
2485.36mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 510mcd/m when shining 5 minutes2, it is preferable that it is 515.69-
685.57mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 250mcd/m when shining 10 minutes2, it is preferable that it is 257.92-
358.46mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 80mcd/m when shining 30 minutes2, it is preferable that it is 80.77-
113.28mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 35mcd/m when shining 60 minutes2, it is preferable that it is 36.25-
53.55mcd/m2。
Further, the present invention also provides a kind of preparation methods of long afterglow PE master batch, comprising the following steps: by PE tree
Extrusion molding after rouge, dispersing agent, heat stabilizer and luminescent powder mixing.
Specifically, above-mentioned material is put into batch mixer, is to be mixed in 20r/min-200r/min batch mixer in revolving speed
2-20 minutes, it is to be mixed uniformly after, be added revolving speed be 200r/min-500r/min double screw extruder in, at 140 DEG C -160 DEG C
At a temperature of be successively granulated and dry after melt blending squeezes out.Due to having adjusted the raw material and raw material proportioning of long afterglow PE master batch
The temperature of hot-melt extruded can be suitably reduced, the aging of PE resin is reduced, then promotes the hair for the long afterglow PE master batch being prepared
Light effect.And PE resin degree of aging can reduce using above-mentioned processing conditions, it can also guarantee that luminescent powder is uniformly dispersed, then
Guarantee the luminescent properties of the subsequent long afterglow PE master batch being prepared.
Preferably, the process conditions of hot-melt extruded are as follows: temperature is 160 DEG C, revolving speed 300r/min, and hybrid technique condition
Are as follows: revolving speed 200r/min, time are 10 minutes.Using more optimized operating condition, it can be further ensured that long afterglow PE is female
The illumination effect of grain.
The present invention also provides a kind of PE plastic parts, pass through the described in any item long afterglow PE master batches of aforementioned embodiments
It is prepared.Its raw material includes substrate and the long afterglow PE master batch, and the quality proportioning of substrate and long afterglow PE master batch is (2-
6): 1；Preferably, the mass content of luminescent powder is 5-20% in PE plastic part, it is preferable that is 5%-10%.Using above-mentioned length
The PE plastic part of twilight sunset PE master batch preparation has good mechanical performance, wherein the tensile strength of PE plastic part is
14.36-18.25MPa the bending strength is 13.88-16.39MPa.
The present invention also provides a kind of preparation methods of PE plastic part, infuse after the long afterglow PE master batch is mixed with substrate
Modeling；
Preferably, substrate is polyethylene, further preferably high density polyethylene (HDPE)；
Preferably, the temperature of injection molding is 200 DEG C to 240 DEG C.
Embodiment 1
The present embodiment provides a kind of long afterglow PE master batch, raw material composition is as follows, the PE-MAH (maleic anhydride of 68.5g
Modified poly ethylene, grafting rate 0.5%), the C100 dispersing agent of 0.5g, the zinc stearate of 1g, the BL-2A luminescent powder of 30g.
The present embodiment also provides a kind of preparation method of long afterglow PE master batch:
It will be added in mixing machine after each component, be to be mixed 3 minutes in 100r/min batch mixer in revolving speed, it is to be mixed uniform
Afterwards, it is to be granulated after melt blending squeezes out at a temperature of 140 DEG C, then in 200r/min double screw extruder that revolving speed, which is added,
It is dry, it packs to get long afterglow PE master batch.
Embodiment 2
The present embodiment provides a kind of long afterglow PE master batch, raw material composition is as follows, and (grafting rate is 64gPE-MAH
0.5%), 1gC181 hyper-dispersant, 5g calcium stearate, the GL-8C luminescent powder of 30g.
The present embodiment also provides a kind of preparation method of long afterglow PE master batch:
It will be added in mixing machine after each component, be to be mixed 10 minutes in 200r/min batch mixer in revolving speed, it is to be mixed equal
After even, it is to be granulated after melt blending squeezes out at a temperature of 150 DEG C, so in 500r/min double screw extruder that revolving speed, which is added,
After dry, pack to get long afterglow PE master batch.
Embodiment 3
The present embodiment provides a kind of long afterglow PE master batch, raw material composition is as follows, and (grafting rate is 58.5gPE-MAH
0.3%), 0.5gC181 dispersing agent, 1g zinc stearate, the GL-4A luminescent powder of 40g.
The present embodiment also provides a kind of preparation method of long afterglow PE master batch: will be added in mixing machine after each component, In
Revolving speed be 100r/min batch mixer in mix 3 minutes, it is to be mixed uniformly after, addition revolving speed be 300r/min double screw extruder
In, it is granulated after melt blending squeezes out at a temperature of 160 DEG C, then dries, pack to get long afterglow PE master batch.
Embodiment 4
The present embodiment provides a kind of long afterglow PE master batch, raw material composition is as follows, and (grafting rate is 46.5gPE-MAH
2.0%), 0.5gHyPerC20 dispersing agent, 3g zinc stearate, the HL-730 luminescent powder of 50g.
The present embodiment also provides a kind of preparation method of long afterglow PE master batch: will be added in mixing machine after each component, In
Revolving speed is mix 3 minutes in 20r/min batch mixer, it is to be mixed uniformly after, revolving speed is added as in 200r/min double screw extruder,
It is granulated after melt blending squeezes out at a temperature of 160 DEG C, then dries, pack to get long afterglow PE master batch.
Embodiment 5
The present embodiment provides a kind of long afterglow PE master batch, raw material composition is as follows, and (grafting rate is 34gPE-MAH
0.5%), 1gHyPerC30 dispersing agent, 5g calcium stearate, the BL-2A luminescent powder of 60g.
The present embodiment also provides a kind of preparation method of long afterglow PE master batch:
It will be added in mixing machine after each component, be to be mixed 20 minutes in 100r/min batch mixer in revolving speed, it is to be mixed equal
After even, it is to be granulated after melt blending squeezes out at a temperature of 160 DEG C, so in 300r/min double screw extruder that revolving speed, which is added,
After dry, pack to get long afterglow PE master batch.
Embodiment 6
The present embodiment provides a kind of long afterglow PE master batch, raw material composition is as follows, and (grafting rate is 28gPE-MAH
0.1%), 1gC181 dispersing agent, 1g calcium stearate, the HL-825 luminescent powder of 70g.
The present embodiment also provides a kind of preparation method of long afterglow PE master batch:
It will be added in mixing machine after each component, be to be mixed 5 minutes in 80r/min batch mixer in revolving speed, it is to be mixed uniform
Afterwards, it is to be granulated after melt blending squeezes out at a temperature of 140 DEG C, then in 500r/min double screw extruder that revolving speed, which is added,
It is dry, it packs to get long afterglow PE master batch.
Embodiment 7
The present embodiment provides a kind of long afterglow PE master batch, raw material composition is as follows, and (grafting rate is 28.5gPE-MAH
0.5%), 0.5gC100 dispersing agent, 1g zinc stearate, the GL-8C luminescent powder of 70g.
The present embodiment also provides a kind of preparation method of long afterglow PE master batch:
It will be added in mixing machine after each component, be to be mixed 3 minutes in 200r/min batch mixer in revolving speed, it is to be mixed uniform
Afterwards, it is to be granulated after melt blending squeezes out at a temperature of 160 DEG C, then in 300r/min double screw extruder that revolving speed, which is added,
It is dry, it packs to get long afterglow PE master batch.
Embodiment 8
A kind of PE plastic part is present embodiments provided, the long afterglow PE master batch being prepared by embodiment 7, wherein
The mass percent content of luminescent powder is 5%.
The present embodiment also provides a kind of preparation method of PE plastic part, the long afterglow that 100g embodiment 7 is prepared
PE master batch and 1300gHDPE (high density polyethylene (HDPE)) after mixing, are added in injection molding machine, are molded and are made at 200 DEG C
Part.
Embodiment 9
A kind of PE plastic part is present embodiments provided, the long afterglow PE master batch being prepared by embodiment 5, wherein
The mass percent content of luminescent powder is 10%.
The present embodiment also provides a kind of preparation method of PE plastic part, the long afterglow that 200g embodiment 5 is prepared
PE master batch and 1000gHDPE after mixing, are added in injection molding machine, and injection molding obtains product at 220 DEG C.
Embodiment 10
A kind of PE plastic part is present embodiments provided, the long afterglow PE master batch being prepared by embodiment 5, wherein
The mass percent content of luminescent powder is 20%.
The present embodiment also provides a kind of preparation method of PE plastic part, the long afterglow that 400g embodiment 5 is prepared
PE master batch and 800gHDPE after mixing, are added in injection molding machine, and injection molding obtains product at 240 DEG C.
Comparative example 1: long afterglow PE master batch is prepared referring to the preparation method that embodiment 1 provides, difference is raw material proportioning such as
Under: 68.5 grams of PE, 30 grams of BL-2A luminescent powders, 0.5 gram of C100 dispersing agent, 1 part of zinc stearate.
Comparative example 2: long afterglow PE master batch is prepared referring to the preparation method that embodiment 2 provides, difference is raw material proportioning such as
Under: 65 grams of PE-MAH, 30 grams of GL-8C luminescent powders, 5 grams of zinc stearates.
Comparative example 3: long afterglow PE master batch is prepared referring to the preparation method that embodiment 3 provides, difference is raw material proportioning such as
Under: 50 grams of PE-MAH, 40 grams of GL-4A luminescent powders, 0.5 gram of C180 dispersing agent.
Comparative example 4: long afterglow PE master batch is prepared referring to the preparation method that embodiment 5 provides, difference is raw material proportioning such as
Under: 40 grams of PE, 60 grams of BL-2A luminescent powders.
Comparative example 5: long afterglow PE master batch is prepared referring to the preparation method that embodiment 7 provides, difference is raw material proportioning such as
Under: 30 grams of PE, 70 grams of GL-8C luminescent powders.
Comparative example 6: after mixing by 100g comparative example 5 and 1300gHDPE, being added in injection molding machine, bets at 200 DEG C
Modeling obtains 5%GL-8C content HDPE product.
Comparative example 7: after mixing by 200g comparative example 4 and 1000gHDPE, being added in injection molding machine, bets at 220 DEG C
Modeling obtains 10%BL-2A content HDPE product.
Comparative example 8: after mixing by 400g comparative example 4 and 800gHDPE, being added in injection molding machine, bets at 240 DEG C
Modeling obtains 20%BL-2A content HDPE product.
Experimental example 1
After-glow brightness test is carried out to the long afterglow PE master batch of embodiment 1-7 and comparative example 1-5, test method refers to GB/T
24981.2-2010.Testing result is referring to table 1.
1 testing result of table
According to table 1, long afterglow PE master batch obtained by embodiment 1 1min, 5min, 10min, 30min, 60min,
After-glow brightness be significantly higher than comparative example 1, illustrate in PE introduce MAH group after can increase luminescent powder and the compatibility of PE, mention
Rise long afterglow PE master batch after-glow brightness.The long afterglow PE master batch of embodiment 2 and embodiment 3 1min, 5min, 10min, 30min,
60min, after-glow brightness are respectively higher than comparative example 2 and 3 after-glow brightness of comparative example, illustrate to add dispersing agent and heat stabilizer is equal
The after-glow brightness of long afterglow PE master batch can be effectively improved.From embodiment 3-7 and comparative example 3-5 it is found that no matter luminescent powder concentration such as
What changes, and MAH group, addition dispersing agent or heat stabilizer are introduced on PE can effectively improve the PE night of equal volume luminescent powder
The after-glow brightness of light master batch.
Experimental example 2
The tensile strength and bending strength of the PE plastic part of embodiment 8-10 and comparative example 6-8 are detected,
In, the detection of tensile strength and bending strength is referring to GB/T 1040.1-2006.Testing result is referring to table 2.
2 testing result of table
| Tensile strength (Mpa) | Bending strength (MPa) | |
| Embodiment 8 | 18.25 | 16.39 |
| Embodiment 9 | 16.32 | 15.94 |
| Embodiment 10 | 14.36 | 13.88 |
| Comparative example 6 | 16.11 | 15.12 |
| Comparative example 7 | 13.19 | 12.91 |
| Comparative example 8 | 11.89 | 11.05 |
Comparing embodiment 8 and comparative example 6 are it is found that add PE plastics system obtained by long afterglow PE master batch prepared by the present invention
Part tensile strength is relatively added product tensile strength obtained by common long afterglow PE master batch with bending strength and is obviously improved；Compare
Embodiment 9 and comparative example 7, embodiment 10 and comparative example 8 are it is found that when noctilucence powder content increases to 10 parts or 20 parts, and addition is originally
PE plastic part tensile strength and bending strength obtained by the long afterglow PE master batch of preparation is invented to be still significantly higher than by more than commonly growing
Product obtained by brightness PE master batch.
In conclusion the long afterglow PE master batch that the embodiment of the present invention provides is bonded by using PE resin and luminescent powder,
Especially hydrogen bond and Van der Waals force bonding, promote the compatibility of luminescent powder and PE resin, mitigate the friction of luminescent powder and machine, from
And reduce the structural damage of luminescent powder.And after adding dispersing agent, luminescent powder can be promoted to better disperse in PE resin, kept away
Exempt from its reunion, while preparation temperature can be reduced, mitigates the degradation with aging degree of polymer；Guarantee the luminous effect of long afterglow PE master batch
Fruit.The heat stabilizer of addition can also enhance the thermal stability of PE resin, mitigate the degradation with aging discoloration in process.With it is existing
Technology is compared, and luminescent powder mass percent can reach 30%-70% in long afterglow PE master batch of the invention, and without black,
The advantages that being uniformly dispersed, be bright-colored, fluorescent lifetime is long.The PE plastic part as obtained by long afterglow PE master batch of the invention compared with
The PE plastic part mechanical property as obtained by common long afterglow PE master batch is more preferably.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of long afterglow PE master batch, which is characterized in that in parts by weight, raw material include 28-68.5 parts of PE resins, 0.3 part-
1 part of dispersing agent, 0.5 part -5 parts of heat stabilizer and 30 parts -70 parts of luminescent powder, and in long afterglow PE master batch luminescent powder with
PE resin forms bonding；
Preferably, it is to be formed to be bonded by hydrogen bond and Van der Waals force that luminescent powder is bonded with the formation of PE resin in long afterglow PE master batch.
2. long afterglow PE master batch according to claim 1, which is characterized in that in parts by weight, raw material includes 28.5-34
Part PE resin, 0.5 part -1 part of dispersing agent, 1 part -5 parts of heat stabilizer and 60 parts -70 parts of luminescent powder.
3. long afterglow PE master batch according to claim 1 or 2, which is characterized in that PE resin is graft polymers；
Preferably, grafting rate 0.1-2%；It is highly preferred that being 0.5%-1.0%；
Preferably, the graft polymers is PE-MAH.
4. long afterglow PE master batch according to claim 1 or 2, which is characterized in that the dispersing agent is dissaving polymer；
The heat stabilizer is zinc stearate or calcium stearate；
The luminescent powder is rare earth aluminate oxide.
5. long afterglow PE master batch according to claim 1 or 2, which is characterized in that shine 1 minute when after-glow brightness is tested
When, the after-glow brightness of the long afterglow PE master batch is greater than 1900mcd/m2, it is preferable that it is 1968.32-2485.36mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 510mcd/m when shining 5 minutes2, it is preferable that it is 515.69-
685.57mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 250mcd/m when shining 10 minutes2, it is preferable that it is 257.92-
358.46mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 80mcd/m when shining 30 minutes2, it is preferable that it is 80.77-
113.28mcd/m2；
The after-glow brightness of the long afterglow PE master batch is greater than 35mcd/m when shining 60 minutes2, it is preferable that it is 36.25-
53.55mcd/m2。
6. the preparation method of long afterglow PE master batch as described in any one in claim 1-5, which is characterized in that including following step
It is rapid: extrusion molding after PE resin, dispersing agent, heat stabilizer and luminescent powder are mixed.
7. preparation method according to claim 6, which is characterized in that the process conditions of hot-melt extruded are as follows: temperature 140-
160 DEG C, revolving speed 200-500r/min；
Preferably, temperature is 160 DEG C, revolving speed 500r/min；
Preferably, hybrid technique condition are as follows: revolving speed 20-200r/min, time are 2-20 minutes；
It is highly preferred that revolving speed is 200r/min, the time is 10 minutes.
8. a kind of PE plastic part, which is characterized in that it passes through the described in any item long afterglow PE master batch preparations of claim 1-5
It obtains.
9. PE plastic part according to claim 8, which is characterized in that its raw material includes substrate and the long afterglow PE female
Grain, and the quality proportioning of substrate and long afterglow PE master batch is (2-6): 1；
Preferably, the mass content of luminescent powder is 5-20% in the PE plastic part, it is preferable that is 5%-10%；
Preferably, the tensile strength of the PE plastic part is 14.36-18.25MPa, bending strength 13.88-16.39MPa.
10. the preparation method of PE plastic part as claimed in claim 8 or 9, which is characterized in that by the long afterglow PE master batch
It is molded after being mixed with PE substrate,
Preferably, substrate is high density polyethylene (HDPE)；
Preferably, the temperature of injection molding is 200 DEG C to 240 DEG C.
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