CN209395076U - A kind of low polyacrylic preparation facilities of smell high transparency super-high fluidity - Google Patents
A kind of low polyacrylic preparation facilities of smell high transparency super-high fluidity Download PDFInfo
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- CN209395076U CN209395076U CN201822113586.9U CN201822113586U CN209395076U CN 209395076 U CN209395076 U CN 209395076U CN 201822113586 U CN201822113586 U CN 201822113586U CN 209395076 U CN209395076 U CN 209395076U
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Abstract
The utility model discloses a kind of low polyacrylic preparation facilities of smell high transparency super-high fluidity, it include: positioned at the middle hopper squeezed out on the upside of machine inlet, it is equipped with above middle hopper and claims for carrying out the weightless of precise weighing to raw material, the weightlessness side of being much of is equipped with high speed mixer；It is additionally provided with initiator filler on extruder, is connected with precision metering pump and initiator tank in turn above filler；Vacuum volatilization device is additionally provided in the downstream of initiator filler on extruder, it is additionally provided with the strainer and automatic net-changing device for stopping non-fusant and polymer gel in mixture in the exit of extruder die head, makes the melt after reacting from the smooth outflow of extruder die head；Extruder die head outlet flows to cooling device；Cooling trough downstream sets gradually efficient water-removing device, pelleter, vibrating screen, receiving hopper and several concatenated circulation baking material storehouses.Transparent, the low smell and low volatility of product can further be improved using the present apparatus.
Description
Technical field
The utility model belongs to modified plastics technical field, and it is polyacrylic to be related to a kind of low smell high transparency super-high fluidity
Preparation facilities.
Background technique
Super-high fluidity polypropylene refers generally to the polypropylene material of melt index high (MI >=500g/10min), this material
Material is often used as the main material of melt-blown process non-woven fabrics.Super-high fluidity polypropylene substantially is prepared there are three types of technique at present.
The polypropylene melting means adjustable range of a kind of hydrogen control technique (i.e. hydrogen-regulating method) in polymerization process, this technique preparation has
Limit is difficult to adjust to very high level, and the usually wider production and product properties for being unfavorable for melt spraying non-woven fabrics of molecular weight distribution；
One kind is that metallocene catalyst direct polymerization method synthesizes super-high fluidity polypropylene, the material molecule amount distribution that this method obtains
It is relatively narrow, but catalyst cost price is high, and higher product price causes to be difficult to promote in down-stream enterprise；One kind is to conventional polypropylene
Middle addition peroxide radical initiator, the degradation reaction by causing controllable free-radical molecular chain rupture obtain superelevation flowing
Property polypropylene (i.e. oxygen tune method), this technique production cost is low, melting means is accurately adjustable, product be suitble to melt spraying non-woven fabrics produce work
Skill, it is adopted more in the polyacrylic production of existing super-high fluidity.
With the development of economy and society, people propose increasingly higher demands for environmental quality, for own health
Attention degree it is also higher and higher.However the communicable diseases such as the exceedingly odious weather such as haze, sandstorm and Severe Acute Respiratory Syndromes, bird flu
Take place frequently, so that people is gradually recognized the importance of protective respirator.PM2.5 (pellets of diameter≤2.5 μm)
As the important indicator for measuring air quality, core material applied by the protective respirators such as mask, dust mask is nonwoven
Cloth material batches continuous one-step and produces that is, using raw materials such as polypropylene granules through high-temperature fusion, spinneret, paving guiding principle, hot pressing
Non-woven cloth melt-blown process production non-woven fabrics.Important source material of the super-high fluidity polypropylene as non-woven cloth products, people
Also increasingly higher demands are proposed to it.As the protective respirator closely related with human health, itself nontoxic, nothing
It is taste, nonirritant closely related with the health and comfort level of people.The initiation that the prior art passes through peroxide radical initiator
The super-high fluidity polypropylene product of degradation of polypropylene effect production, because containing more initiator residual and free radical cracking
The small molecule by-product formed is reacted, causes volatile organic matter (VOC) content of product higher, oder levels generally exceed
Professional hygiene requirement, the protective respirator for carrying a large amount of small organic molecules and aromatic substance will certainly be used in consumer
It is sucked into journey in vivo, the health of user will be if things go on like this impacted.With people's aesthetic pursuit diversification and
The market demand of high-endization trend, high transparency bonded fabric product is fast-developing, such as transparent or semitransparent mask, anti-haze light transmission yarn
It is more and more for the demand of high transparency non-woven fabrics on the products such as window, transparent adhesive bandage, and the superelevation stream of prior art production
Often transparency is poor, mist degree is higher for dynamic property polypropylene product, influences non-woven fabrics in the popularization and use in these fields.
Therefore, it is necessary to provide a kind of low polyacrylic preparation dresses of smell high transparency super-high fluidity by those skilled in the art
It sets, the transparency of polyacrylic melting means and product can be improved in the production process of polypropylene product, while reducing the gas of product
Taste, ash content.
Utility model content
In view of the deficiency of the prior art, it is poly- to provide a kind of low smell high transparency super-high fluidity for the utility model
The preparation facilities of propylene can improve the transparency of polyacrylic melting means and product, simultaneously in the production process of polypropylene product
Reduce smell, the ash content of product.
A kind of low polyacrylic preparation facilities of smell high transparency super-high fluidity is provided to achieve the goals above, use
Technical solution is as follows, comprising:
It is equipped with positioned at the middle hopper squeezed out on the upside of machine inlet, above the middle hopper accurate for being carried out to raw material
The weightless of weighing claims；The weightless title can be set as a, the mixture outlet of inlet face high speed mixer；The mistake
Claim that several can also be set as again, one of weightless mixture outlet for claiming inlet face high speed mixer, remaining is weightless
The side of deserving to be called is equipped with the big hopper for accepting remainder sub-material, launches needs to adapt to the raw material of different hybrid modes；
The extruder is equipped with initiator filler, is connected in turn above filler free for accurately adding liquid
The precision metering pump and initiator tank of base initiator；
Several small molecules for removing in fused materials are additionally provided in the downstream of initiator filler on the extruder
Several vacuum volatilization devices of volatile organic matter are additionally provided in the exit of extruder die head for stopping non-fusant in mixing
With the automatic net-changing device of polymer gel, make the melt after reacting from the smooth outflow of extruder die head；
The melt flows to cooling device from extruder die head outlet, and the cooling device includes face die head to reaction
Melt carries out the stainless steel cooling trough cooled down in time, the bracket for supporting the sink, carries out heat in time to cooling water in sink afterwards
The cooling-water machine of exchange, cooling-water machine water outlet, cooling-water machine water inlet are respectively set on the cooling-water machine, and the cooling-water machine water outlet is logical
Supercooling water dispenser outlet pipe is connected to sink side, cooling-water machine water inlet is connected to by cooling-water machine water inlet pipe with the sink other side, from
And cooling-water machine and cooling trough, cooling-water machine water inlet pipe, cooling-water machine outlet pipe form cooling water circulation loop；The cooling trough
On be also connected with initial water inlet pipe and control valve, for injecting cooling water into sink；
The cooling trough downstream sets gradually efficient water-removing device, pelleter, vibrating screen, receiving hopper and several concatenated
Recycle baking material storehouse.
In the preparation facilities that the technical program provides, claims accurate control solid-phase mixture feeding capacity by weightlessness, pass through essence
Close metering pump accurately controls the mass ratio of liquid phase free radical type initiator and acrylic resin, and initiator is residual after can reducing reaction
Stay the generation with side reaction；Using a kind of Patent design (the anti-melt flash of extruder of ZL2017213409612 of the applicant
Vacuum chamber device) as the vacuum volatilization device in the present embodiment, fusant can be removed by vacuum volatilization mouth to greatest extent
Volatile organic matter (VOC) and moisture in material；It can realize that continuous production is not shut down production and controlled by automatic net-changing device
Molecular weight product and its stability of distribution；By the setting of cooling water bath device, the water in groove body is passed through in cooling-water machine, benefit
Water temperature is set to be quickly reduced to setting value with the powerful heat exchange place of cooling-water machine, then recycling is led in cooling trough, to expire
Requirement of the sufficient product for rapid cooling, quickly cooling can make that the lattice dimensions of product are smaller, lattice arrangement more steps up
It is close, to make that the transparency of product further increases, mechanical strength further enhances, while efficient cooling also can be improved in time
Production efficiency；Specifically, being first turned on water inlet pipe fills water into stainless steel trough body, temperature setting is carried out to cooling-water machine, is opened
Cooling-water machine water inlet pipe and cooling-water machine outlet pipe, recycle the water in sink in cooling-water machine, control system by the temperature of cooling-water machine
System, can make the water temperature in stainless steel sink body be maintained at set temperature.Cooling-water machine, structure is arranged in the present embodiment below cooling trough
Compact, space utilization is abundant, and the water in sink is recycled in cooling-water machine, and the water in cooling trough is made to be always maintained at lower water
Temperature, cooling are more efficient；Wherein, the cooling-water machine refer to all can provide constant temperature, constant current, constant pressure cooling water equipment, preferably
For air-cooled box cooling-water machine；Using a kind of Patent design (the efficient water-removing dress of the material strip of ZL 2017213417407 of the applicant
Set) as the efficient water-removing device in the present embodiment, by this device can in time, efficiently remove the water on material strip surface
Point, so as to reduce the moisture content of particle after pelletizing, improve product quality；When carrying out long to particle by recycling baking material storehouse
Between repeatedly baking effectively remove its carrying small molecule volatile organic matter.In addition, in the receiving hopper in the technical program
The air blast feeder or roots blower for institute's pelletizing to be sent into circulation baking material storehouse are also set up at downstream.
To which the setting of the technical program device passes through the excellent of the innovation of above-mentioned integral device and brought corresponding technique
Change, can greatly reduce product odour and small molecule volatile organic matter therein, obtain the super-high fluidity of low smell
Polypropylene.
Preferably, the precision metering pump is one of plunger pump, diaphragm pump, screw pump.
Further, the precision metering pump is plunger pump.
Preferably, the vacuum volatilization device connects two or more extruder barrel vacuum ports.
Preferably, the automatic net-changing device is set as Double-plunger net-changing device or crawler-type net-changing device.More preferably twin columns
Plug net-changing device.
Preferably, the setting temperature of the cooling-water machine is 5~50 DEG C, and temperature-controlled precision is ± 5 DEG C.
In the technical program, cooling trough is connected by compact Layout cooling-water machine, cooling water can be kept to be constantly in water
The temperature difference ± 5 DEG C are conducive to the control of crystalling propylene size, are conducive to the stability of product.
Preferably, the baking material temperature setting in the circulation baking material storehouse is 60~145 DEG C.More preferably 70~100 DEG C.
The invention also discloses applying smell high transparency super-high fluidity polypropylene low in one of above-mentioned apparatus,
Using each component of following mass percent:
Wherein:
The acrylic resin is the mixture of any one or a few acrylic resin, and the acrylic resin is equal
Poly- polypropylene and/or copolymer polypropylene.
In the technical program, initiator can effectively improve the mobility of PP resin, but due to the activity of free radical compared with
By force, it is easy to induce and generates more activated centre on PP strand, under the action of shear heat, these activated centres can be further
It generates free radicals, to make the further thermal degradation of PP strand, further decreases its notch impact strength, mechanical property is unstable
It is fixed.And due to polypropylene material easily aging, antioxidant is added in the process of production and processing, then assist with lubricant, it can
With the polyacrylic melt index of the improvement of collaboration.
Moreover, special Compositional type transparent nucleater agent, the transparent nucleation is added in the technical program in acrylic resin
Agent is the compounding of glucitols and rosin acid salt.On the one hand, nucleating agent can play nucleus in polypropylene, make poly- third
Alkene strand at a higher temperature surround nucleation dosage form at nucleus crystallize, so that spherulite size be made to reduce, unit area
Interior spherocrystal increases, and increases crystallinity and generates the fine and closely woven and regular spherocrystal that is evenly distributed, spherulite size is much smaller than visible light wave
It is long, transparency is effectively raised, while improving the mechanical property of material；On the other hand, the compounding of this programme nucleating agent, can
To prevent unstable activated centre generation, further pyrolysis makes molecular chain rupture and causes impact strength reduction, chain rupture to generate and send out
The generation of phenomena such as color base group improves its mechanical strength；Antioxidant can be cooperateed with simultaneously, as Hinered phenols and phosphorous acid esters are anti-
Oxygen agent further increases the anti-aging stability of its light, heat；The selection of the compounding nucleating agent, while can not need additionally to be re-introduced into
Stabilizer has been simplified the quantity of ingredient to greatest extent, has been avoided to formula under the premise of guaranteeing this formula excellent structural performance
System brings the unfavorable factor of anti-reflective, make its on molecular structure optical property with higher, be provided simultaneously with oxidative degradation
Stability.
Also, utility model in the prior art is not directed to prepare the polyacrylic method of high transparency super-high fluidity, this
Utility model passes through the transparent nucleater that compounding is added, collaboration each component obtains high transparency, the superelevation of low yellow colour index, low haze
Mobility polypropylene, the characteristic for compounding organic nucleating agent increase product ash content not.
Preferably, the acrylic resin is homopolypropylene.
Preferably, the melting means of the acrylic resin is 0.5~80g/10min.
Further, the melting means of the acrylic resin is 2~50g/10min.
Preferably, the free radical type initiator is organic peroxide initiator, general structure are as follows:
R-O-O-H or R-O-O-R, wherein R is the organic groups such as alkyl, acyl group, carbonate group.
Further, the organic peroxide initiator is benzoyl peroxide (abbreviation BPO), perbenzoic acid
The tert-butyl ester (abbreviation TBPB), di-t-butyl peroxide (abbreviation DTBP), peroxidating -2- base tert-butyl acrylate (abbreviation TBPO),
Bis- (the peroxidating uncles of tert-butyl hydroperoxide (abbreviation TBHP), cumyl peroxide (abbreviation DCP), 2,5- dimethyl -2,5-
Butyl) hexane (abbreviation DHBP), in three peroxide nonane (abbreviation TPO) of 3,6,9- triethyl group -3,6,9- trimethyl -1,4,7-
It is any.
Further, the free radical type initiator uses di-t-butyl peroxide, the bis- (mistakes of 2,5- dimethyl -2,5-
Aoxidize tert-butyl) hexane, three peroxide nonane of 3,6,9- triethyl group -3,6,9- trimethyl -1,4,7-, bis- (tert-butyl hydroperoxides two
Any one of isopropyl) benzene.
Preferably, the lubricant be ethylene bis stearamide (EBS), it is stearmide, oleamide, calcium stearate, hard
Resin acid zinc, higher boiling paraffin, microcrystalline wax, fatty acid etc..
Further, the lubricant is ethylene bis stearamide (EBS) or calcium stearate.
Preferably, the antioxidant be Hinered phenols antioxidant, it is suffocated amine antioxidant, phosphite antioxidant, thio
The mixture of one or more of esters antioxidant, macromolecule kind antioxidant.
Further, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (quotient
The name of an article: antioxidant 1010), β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester (trade name: antioxidant
1076), the mixture of any one or more of phosphorous acid three (2,4- di-tert-butyl-phenyl) ester (trade name: irgasfos 168).
Preferably, the Compositional type transparent nucleater is the mixture of Sorbitol Nucleator and rosin acids nucleating agent.
Further, the glucitols and the mass ratio of rosinate substance are (1.2~1.8): 1.
Further, the glucitols and the mass ratio of rosinate substance are (1.3~1.6): 1.
Preferably, the Sorbitol Nucleator is selected from dibenzal sorbitol, two (to two benzal of methyl) sorbierites, two
(3,4- dimethyl, two benzal) sorbierite, two (two benzal of 4- methyl) sorbierites, two (to ethyl benzal) sorbierites, two are (to first
Base benzal) sorbic acid, double-(p- ethyl dibenzylidene isopropyl) sorbierite, two (benzal is replaced to chlorine) sorbierites, two (to chlorine
Two benzal of methyl) sorbierite, 4,4 '-(two benzal of dimethyl sulphur-based) sorbierites or 1- propyl -1,3,2,4,-two (to n-propyl two
At least one of benzal) sorbierite；
Preferably, the rosin acids nucleating agent is selected from dehydroabietic acid, Dehydroabietate, disproportionated rosin acid and disproportionated rosin
At least one of salt.
In above-mentioned technical proposal, using the mixture of the glucitols of special ratios and rosin acids as special Compositional type
Transparent nucleater, wherein Sorbitol Nucleator is to the transparency of product, surface gloss, rigidity and other thermodynamic properties
It is all significantly improved effect, and has a preferable compatibility with PP, but that there are heat-resisting quantities is poor, heated for Sorbitol Nucleator
It easily decomposes, have the shortcomings that peculiar smell, compounded, can be drawn to the phenyl ring of glucitols with the rosin acid salt nucleating agent of appropriate ratio
Enter the quantity substituent group different with property, so as to effectively reduce the spherulite size of PP, reduces product mist degree, improve system
Transparency, heat distortion temperature and the crystallization temperature of product shorten the molding cycle of product, and can improve the mechanicalness of product
Can, especially elasticity modulus, the notch impact strength of product rise due to refined crystalline strengthening effect, and made transparent PP without
Poison is tasteless, can be used for medical and health and food packaging applications, realizes that comprehensive performance improves under the premise of not introducing excessive auxiliary agent
Purpose.
The utility model also provides a kind of utilization aforementioned low smell high transparency super-high fluidity polypropylene and its system simultaneously
The preparation process of standby device production polypropylene product, comprising the following steps:
S1, according to a certain percentage, by all or part of polypropylene and lubricant, antioxidant, Compositional type transparent nucleater
Be mixed into mixture by high-speed stirring mixer, wherein Compositional type transparent nucleater be with Sorbitol Nucleator and
Rosin acids nucleating agent is that 1.2~1.8 (preferably 1.3~1.6) mix in mass ratio, by mixture and may be remained
Remaining polypropylene (when polypropylene is not added all in aforementioned mixture) is double from different weightless title accurate measurement investments respectively
Screw extruder；
S2, liquid organic peroxide class initiator is passed through to precision metering pump from the injection pair of extruder barrel specific position
Screw extruder；Under the effect of organic peroxide initiator, high-temperature fusion and screw rod shearing free radical drop occurs for polypropylene
Solution reaction, molecular weight are lower by height, and melting means is got higher by low；
S3, the small molecule volatile organic matter and moisture in fused materials are removed by vacuum volatilization device；Pass through melt
Filter screen stops non-fusant and polymer gel in mixing, does not shut down draping using the realization of automatic net-changing device；It is molten after reaction
Body is flowed out from extruder die head；
S4, it is then cooled down immediately through cooling trough, solidifies under pelletizing machine travel and be cooled and shaped in the sink into strips, pass through
Efficient water-removing device air blast dries up laggard pelleter pelletizing；
S5, after removing even knife material, clay and tiny particle by vibrating screen, particle is through air blast feeder or Roots's wind
Machine is sent into circulation baking material storehouse；
After the homogenizing of circulation baking material storehouse, particle near surface layer contained humidity and low boiling point small organic molecule are equal for S6, particle
It can be taken out of by thermal current, to realize dry and reduction smell.
Preferably, the draw ratio of the double screw extruder is 40~70；Extruder barrel temperature setting is 145~300
℃；Screw speed is 200~800 revs/min.
Further, the draw ratio of the double screw extruder is 48~60；Extruder barrel temperature setting be 175~
265℃；Screw speed is 250~500 revs/min.
In the technical program, the temperature range of extruder barrel setting can guarantee to make Compositional type transparent nucleater and poly- third
The abundant melting mixing of alkene, while thermal oxidative degradation or the decomposition of polypropylene or other components will not be caused, to be effectively ensured
Keep the color of resulting materials non-yellowing, transparent excellent.
Preferably, the extruder barrel specific position is from the 2nd~6 section of feed end meter.
Further, the extruder barrel specific position is from the 3rd~4 section of feed end meter.
The setting in above-mentioned technical proposal can guarantee polypropylene organic peroxide initiator, high-temperature fusion and
Under screw rod shearing effect, free radical cracking reaction sufficiently occurs, molecular weight is lower by height, melting means by the low change procedure got higher,
To also correspondingly increase the synergistic effect of polypropylene Yu Compositional type transparent nucleater.
In conclusion to provide a kind of super-high fluidity for preparing low smell high transparency polyacrylic completely new for the utility model
Device can further improve transparent, low smell and low volatility of the polypropylene product again in preparation process, and pass through the dress
To set can be successfully prepared by one-step method, and convenient in high volume promoting production in factory, while also high degree solves raw material
In volatile organic matter small molecule residue problem, the aftertreatment technology of non-woven fabrics enterprise is simplified, to the health protection of the people
It is of great advantage.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to the above-mentioned characteristic of the utility model,
Technical characteristic, advantage and its implementation are further described.
Fig. 1 is the structural schematic diagram of utility model device.
Fig. 2 is the amplification assumption diagram in Fig. 1 at cooling device.
The meaning of label symbol is as follows in figure:
1- high speed mixer, the big hopper of 2-, 3-1# weightlessness claim, and 4-2# weightlessness claims, 5- middle hopper, 6- precision metering pump,
7- initiator tank, 8- feed inlet, 9- initiator filler, 10- double screw extruder, 11-1# vacuum volatilization device, 12-2# are true
Empty Devolatilization device, the automatic net-changing device of 13-, 14- extruder die head, 15- cooling trough, 150- bracket, the initial water inlet pipe of 151-,
16- cooling-water machine water outlet, 160- cooling-water machine outlet pipe, 17- cooling-water machine water inlet, 170- cooling-water machine water inlet pipe, 18- cooling-water machine,
19- efficient water-removing device, 20- pelleter, 21- vibrating screen, 22- receiving hopper, 23-1# recycle baking material storehouse, and 24-2# recycles baking material
Storehouse.
Specific embodiment
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, attached drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings, and obtains other embodiments.
To make simplified form, part relevant to the utility model is only schematically shown in each figure, they are not
Represent its practical structures as product.
As shown in Figure 1, being a kind of low polyacrylic preparation facilities of smell high transparency super-high fluidity, comprising:
It is equipped with above the middle hopper 5 squeezed out on the upside of machine inlet, the middle hopper 5 for carrying out essence to raw material
The weightless of close weighing claims；The weightless title can be set as one, the mixture outlet of inlet face high speed mixer 1；Institute
The weightless title stated can also be set as several, one of weightless mixture outlet for claiming inlet face high speed mixer 1, remaining
The weightlessness side of deserving to be called be equipped with big hopper 2 for accepting remainder sub-material, launch needs to adapt to the raw material of different hybrid modes；
The extruder is equipped with liquid initiator filler, is connected in turn above filler for accurately adding freely
The precision metering pump 6 and initiator tank 7 of base initiator；
Several small molecules for removing in fused materials are additionally provided in the downstream of initiator filler on the extruder
Several vacuum volatilization devices of volatile organic matter are such as set as 1# vacuum volatilization device 11 and 2# vacuum volatilization device 12,
The exit of extruder die head 14 is additionally provided with the automatic net-changing device 13 for stopping non-fusant and polymer gel in mixing, makes anti-
Melt after answering is from the smooth outflow of extruder die head 14；
The outlet of extruder die head 14 flows to cooling device, and the cooling device includes face die head 14 to accept reaction
The stainless steel cooling trough 15 of melt, the bracket 150 for supporting the sink, the cooling-water machine 18 immediately below sink afterwards, it is described cold
Cooling-water machine water outlet 16, cooling-water machine water inlet 17 are respectively set in water dispenser 18, the cooling-water machine water outlet 16 is gone out by cooling-water machine
Water pipe 160 is connected to sink side, cooling-water machine water inlet 17 is connected to by cooling-water machine water inlet pipe 170 with the sink other side, from
And cooling-water machine 18 and cooling trough 15, cooling-water machine water inlet pipe 170, cooling-water machine outlet pipe 160 form cooling water circulation loop；Institute
It states and is also connected with initial water inlet pipe 151 and control valve on cooling trough 15, for injecting cooling water into sink；
15 downstream of cooling trough set gradually efficient water-removing device 19, pelleter 20, vibrating screen 21, receiving hopper 22 and
Several concatenated circulation baking material storehouses, for example it is set as 2 concatenated 1# circulation baking material storehouses 23,2# circulation baking material 24；In the splicing
It is also set up at the downstream of bucket for (not showing the air blast feeder in institute's pelletizing feeding circulation baking material storehouse or roots blower in figure
Out).
Wherein, the precision metering pump 6 is one of plunger pump, diaphragm pump, screw pump.It is preferably plunger pump.Institute
The chemical feed pipe stated in initiator tank 7 is connected to by precision metering pump 6 with the 2nd~6 section of extruder barrel from feed end meter.Institute
It states vacuum volatilization device and connects two or more extruder barrel vacuum ports, can be gone by vacuum volatilization mouths more than double ranks
Except the small molecule volatile organic matter in fused materials；And (ZL2017213409612 is a kind of using the Patent design of the applicant
The anti-melt flash vacuum chamber device of extruder) as the vacuum volatilization device in the present embodiment, it can be most by vacuum volatilization mouth
Limits remove the volatile organic matter (VOC) and moisture in fused materials.The automatic net-changing device 13 is set as Double-plunger
Net-changing device or crawler-type net-changing device, preferably Double-plunger net-changing device, may be implemented not shut down draping, guarantee the company of production and processing
Continuous property, and improve the stability of molecular weight product and its distribution.The temperature of the cooling-water machine 18 is 5~50 DEG C, temperature-controlled precision
It is ± 5 DEG C, is conducive to the control of crystalling propylene size, is conducive to the stability of product.The efficient water-removing device 19 is this
Signified device in the Patent design (a kind of efficient water-removing device of the material strip of ZL 2017213417407) of applicant.The circulation
The baking material temperature in baking material storehouse is 60~145 DEG C.Preferably it is 70~100 DEG C, product is carried out for a long time by circulation baking material storehouse
Baking effectively removes the small molecule volatile organic matter of its carrying repeatedly.
In the present invention, the melt index refers under 230 DEG C, 2.16kg pressure, according to GB/T 3682-
The melt index that 2000 method measures.
Low smell high transparency super-high fluidity polypropylene can be prepared using above-mentioned apparatus, specific embodiment is as follows:
Embodiment 1
S1, polypropylene powder (225 powder of the trade mark), the Lubricate EBS of 50g, 50g antioxidant 1010,50g by 49.85kg
Irgasfos 168 in high speed mixer 1 be uniformly mixed, claim 4 investment middle hoppers 5 from 2# weightlessness；By 50kg polypropylene granules
(trade mark Z30S) claims 3 investment middle hoppers 5 through 1# weightlessness；Extruder revolving speed is set as 350 revs/min, weightlessness claims total blanking speed
Degree is 450kg/h, and set 1# weightlessness and 2 weightless weighing bucket feeding ratios be referred to as 50%/50%, is expected through 5 feeding of middle hopper to crowded
Machine out；
Free radical type initiator di-t-butyl peroxide in S2, initiator tank 7, set 6 flow of precision metering pump as
30ml/min, pressure are that 3.50MPa injects double screw extruder 10, and polypropylene is in organic peroxide initiator, high temperature melting
Under warm screw rod shearing effect, free radical cracking reaction occurs, molecular weight is lower by height, and melting means is got higher by low；
Vacuum degree is controlled in S3,1# vacuum volatilization device 11 and 2# vacuum volatilization device 12 in -0.08~-0.06 MPa,
Remove the small molecule volatile organic matter in fused materials；The non-fusant in mixing is stopped by melt filtration net and polymer is solidifying
Glue does not shut down draping using the realization of automatic net-changing device 13, and the melt after reaction is flowed out from extruder die head 14；
S4, the cooling trough 15 for being immediately then 10 DEG C through temperature are cooling, solidify under the traction of pelleter 20 and exist into strips
It is cooled and shaped in cooling trough 15, dries up laggard 20 pelletizing of pelleter through 19 air blast of efficient water-removing device；
S5, after removing even knife material, clay and tiny particle by vibrating screen 21, particle is through air blast feeder or Roots
Blower is sent into circulation baking material storehouse 23/24；
S6, particle are 80 DEG C of circulation baking material storehouse through temperature setting, after baking material 4h homogenizing, particle surface layer contained humidity and
Low boiling point small organic molecule can be taken out of by thermal current, achieve the purpose that dry and reduce smell.
The present embodiment through extruder extrusion, tie rod, cooling, pelletizing, dry to obtain product.The physical property of product is shown in Table 1.
Embodiment 2
S1, by the polypropylene powder (trade mark PP-H-225) of 49.85kg, the lubricant stearic acid calcium of 50g, 50g antioxidant
1076, the irgasfos 168 of 50g is uniformly mixed in high speed mixer, claims to put into middle hopper from 2# weightlessness；By 50kg polypropylene
Pellet (trade mark Z30S) claims to put into middle hopper through 1# weightlessness；Extruder revolving speed is set as 350 revs/min, weightlessness claims total blanking
Speed is 450kg/h, sets 1# weightlessness and claims with 2# weightlessness feeding ratio to be referred to as 50%/50%, material through middle hopper feeding to squeeze
Machine out；
S2, free radical type initiator bis- (tert-butyl peroxide) hexanes of 2,5- dimethyl -2,5- set precision metering pump
Flow is 24ml/min, pressure is 3.00MPa injection double screw extruder, and polypropylene is in organic peroxide initiator, height
Under temperature melting and screw rod shearing effect, free radical cracking reaction occurs, molecular weight is lower by height, and melting means is got higher by low；
Vacuum degree is controlled in S3, vacuum volatilization device in -0.08~-0.06MPa, the small molecule removed in fused materials is waved
Hair property organic matter；Non-fusant and polymer gel in mixing are stopped by melt filtration net, is realized not using automatic net-changing device
Draping is shut down, the melt after reaction is flowed out from extruder die head；
S4, the cooling trough for being immediately then 10 DEG C through temperature are cooling, solidify under pelletizing machine travel into strips in sink
Middle cooling and shaping dry up laggard pelleter pelletizing through efficient water-removing device air blast；
S5, after removing even knife material, clay and tiny particle by vibrating screen, particle is through air blast feeder or Roots's wind
Machine is sent into circulation baking material storehouse；
S6, particle are 80 DEG C of circulation baking material storehouse through temperature setting, after baking material 4h homogenizing, particle surface layer contained humidity and
Low boiling point small organic molecule can be taken out of by thermal current, achieve the purpose that dry and reduce smell.
The present embodiment through extruder extrusion, tie rod, cooling, pelletizing, dry to obtain product.The physical property of product is shown in Table 1.
Embodiment 3
It is only that in place of the present embodiment and the difference of embodiment 1: first, the trade mark of polypropylene powder is PP-H-045, profit
Lubrication prescription uses calcium stearate；Second, the trade mark of polypropylene granules is Y24；Third, free radical type initiator is using bis- (uncles
Butyl peroxy diisopropyl) benzene；Fourth, set the flow of precision metering pump as 42ml/min, pressure 4.00Mpa；Fifth,
The cooling-water machine set temperature of sink connection is 15 DEG C.
The present embodiment through extruder extrusion, tie rod, cooling, pelletizing, dry to obtain product.The physical property of product is shown in Table 1.
Embodiment 4
S1, firstly, with the mass ratio of 1.3:1 by Sorbitol Nucleator it is double-(p- ethyl dibenzylidene isopropyl) sorb
Pure and mild rosin acids nucleating agent Dehydroabietate mixing, forms Compositional type transparent nucleater, then by the polypropylene powder of 48.3kg
Expect the antioxidant of (trade mark H30S), 1500g Compositional type nucleating agent, the lubricant stearic acid calcium of 50g, 100g antioxidant 1076,50g
168 are uniformly mixed in high speed mixer, claim to put into middle hopper from 2# weightlessness；50kg polypropylene granules (trade mark Z30S) are passed through
1# weightlessness claims to put into middle hopper；Extruder revolving speed is set as 350 revs/min, weightless total blanking velocity is referred to as 450kg/h, if
Determine 1# weightlessness to claim with 2# weightlessness feeding ratio to be referred to as 50%/50%, expect through middle hopper feeding to extruder；
S2, free radical type initiator di-t-butyl peroxide, setting delicate metering pump discharge as 30ml/min, pressure is
3.50MPa injects double screw extruder, and polypropylene is acted in organic peroxide initiator, high-temperature fusion and screw rod shearing
Under, free radical cracking reaction occurs, molecular weight is lower by height, and melting means is got higher by low；
Vacuum degree is controlled in S3, vacuum volatilization device in -0.08~-0.06MPa, the small molecule removed in fused materials is waved
Hair property organic matter；Non-fusant and polymer gel in mixing are stopped by melt filtration net, is realized not using automatic net-changing device
Draping is shut down, the melt after reaction is flowed out from extruder die head；
S4, the cooling trough for being immediately then 5 DEG C through temperature are cooling, solidify under pelletizing machine travel into strips in the sink
It is cooled and shaped, dries up laggard pelleter pelletizing through efficient water-removing device air blast；
S5, after removing even knife material, clay and tiny particle by vibrating screen, particle is through air blast feeder or Roots's wind
Machine is sent into circulation baking material storehouse；
S6, particle are 80 DEG C of circulation baking material storehouse through temperature setting, after baking material 4h homogenizing, particle surface layer contained humidity and
Low boiling point small organic molecule can be taken out of by thermal current, achieve the purpose that dry and reduce smell.
The present embodiment through extruder extrusion, tie rod, cooling, pelletizing, dry to obtain product.The physical property of product is shown in Table 1.
Comparative example 4-1
This reality comparative example difference from Example 4 is only that: Compositional type nucleating agent is preferable with existing market effect
Single component glucitols Transparence modifier (trade mark Millad NX8000) substitution.The physical property of product is shown in Table 1.
Comparative example 4-2
This reality comparative example difference from Example 4 is only that: by the polypropylene powder (trade mark H30S) of 48.2kg,
1600g Compositional type nucleating agent, the lubricant stearic acid calcium of 50g, 100g antioxidant 1076, the irgasfos 168 of 50g are mixed in high speed
It is uniformly mixed in material machine, claims to put into middle hopper from 2# weightlessness；50kg polypropylene granules (trade mark Z30S) are claimed to throw through 1# weightlessness
Enter middle hopper；Extruder revolving speed is set as 350 revs/min, weightless total blanking velocity is referred to as 450kg/h, and setting 1# weightlessness claims
It is referred to as 50%/50% with 2# weightlessness feeding ratio, expects through middle hopper feeding to extruder；The physical property of product is shown in Table 1.
Embodiment 5
S1, firstly, with the mass ratio of 1.6:1 by (to two benzal of the n-propyl) sorbierite of Sorbitol Nucleator two and rosin
The mixing of acids nucleating agent Dehydroabietate, forms Compositional type transparent nucleater, then by the polypropylene powder (trade mark of 49.45kg
225 powder), 300g Compositional type transparent nucleater, the Lubricate EBS of 50g, 100g antioxidant 1010,100g irgasfos 168 exist
It is uniformly mixed in high speed mixer, claims to put into middle hopper from 2# weightlessness；50kg polypropylene granules (trade mark Z30S) are lost through 1#
Claim investment middle hopper again；Extruder revolving speed is set as 350 revs/min, weightless total blanking velocity is referred to as 450kg/h, sets 1#
Weightlessness claims and 2# weightlessness feeding ratio is referred to as 50%/50%, expects through middle hopper feeding to extruder；
S2, free radical type initiator di-t-butyl peroxide, setting delicate metering pump discharge as 30ml/min, pressure is
3.50MPa injects double screw extruder, and polypropylene is acted in organic peroxide initiator, high-temperature fusion and screw rod shearing
Under, free radical cracking reaction occurs, molecular weight is lower by height, and melting means is got higher by low；
Vacuum degree is controlled in S3, vacuum volatilization device in -0.08~-0.06MPa, the small molecule removed in fused materials is waved
Hair property organic matter；Non-fusant and polymer gel in mixing are stopped by melt filtration net, is realized not using automatic net-changing device
Draping is shut down, the melt after reaction is flowed out from extruder die head；
S4, the cooling trough for being immediately then 5 DEG C through temperature are cooling, solidify under pelletizing machine travel into strips in the sink
It is cooled and shaped, dries up laggard pelleter pelletizing through efficient water-removing device air blast；
S5, after removing even knife material, clay and tiny particle by vibrating screen, particle is through air blast feeder or Roots's wind
Machine is sent into circulation baking material storehouse；
S6, particle are 80 DEG C of circulation baking material storehouse through temperature setting, after baking material 4h homogenizing, particle surface layer contained humidity and
Low boiling point small organic molecule can be taken out of by thermal current, achieve the purpose that dry and reduce smell.
The present embodiment through extruder extrusion, tie rod, cooling, pelletizing, dry to obtain product.The physical property of product is shown in Table 1.
Comparative example 5
This comparative example difference from Example 5 is only that: by compounding nucleating agent with the preferable sorb of existing market effect
Alcohols Transparence modifier (trade mark Millad N3988) substitution.
Embodiment 6
S1, firstly, with the mass ratio of 1.4:1 by Sorbitol Nucleator two (3,4 one dimethyl benzylidene) D-sorbite
It is mixed with rosin acids nucleating agent Dehydroabietate, Compositional type transparent nucleater is formed, then by the polypropylene powder of 99.35kg
Expect the antioxidant of (225 powder of the trade mark), 500g Compositional type transparent nucleater, the Lubricate EBS of 50g, 50g antioxidant 1010,50g
168 are uniformly mixed in high speed mixer, claim to put into middle hopper from 2# weightlessness；Extruder revolving speed is set as 350 revs/min,
Weightless total blanking velocity is referred to as 450kg/h, and setting 2# weightlessness feeding ratio is referred to as 100%, and material is through middle hopper feeding to extrusion
Machine；
S2, free radical type initiator di-t-butyl peroxide, setting delicate metering pump discharge as 30ml/min, pressure is
3.50MPa injects double screw extruder, and polypropylene is acted in organic peroxide initiator, high-temperature fusion and screw rod shearing
Under, free radical cracking reaction occurs, molecular weight is lower by height, and melting means is got higher by low；
Vacuum degree is controlled in S3, vacuum volatilization device in -0.08~-0.06MPa, the small molecule removed in fused materials is waved
Hair property organic matter；Non-fusant and polymer gel in mixing are stopped by melt filtration net, is realized not using automatic net-changing device
Draping is shut down, the melt after reaction is flowed out from extruder die head；
S4, the cooling trough for being immediately then 10 DEG C through temperature are cooling, solidify under pelletizing machine travel into strips in sink
Middle cooling and shaping dry up laggard pelleter pelletizing through efficient water-removing device air blast；
S5, after removing even knife material, clay and tiny particle by vibrating screen, particle is through air blast feeder or Roots's wind
Machine is sent into circulation baking material storehouse；
S6, particle are 80 DEG C of circulation baking material storehouse through temperature setting, after baking material 4h homogenizing, particle surface layer contained humidity and
Low boiling point small organic molecule can be taken out of by thermal current, achieve the purpose that dry and reduce smell.
The present embodiment through extruder extrusion, tie rod, cooling, pelletizing, dry to obtain product.The physical property of product is shown in Table 1.
Comparative example 6-1
S1, firstly, with the mass ratio of 1.4:1 by Sorbitol Nucleator two (3,4 one dimethyl benzylidene) D-sorbite
It is mixed with rosin acids nucleating agent Dehydroabietate, Compositional type transparent nucleater is formed, then by the polypropylene powder of 99.35kg
Expect the antioxidant of (225 powder of the trade mark), 500g Compositional type transparent nucleater, the Lubricate EBS of 50g, 50g antioxidant 1010,50g
168 are uniformly mixed in high speed mixer, claim to put into middle hopper from 2# weightlessness；Extruder revolving speed is set as 350 revs/min,
Weightless total blanking velocity is referred to as 450kg/h, and setting 2# weightlessness feeding ratio is referred to as 100%, and material is through middle hopper feeding to extrusion
Machine；
S2, free radical type initiator di-t-butyl peroxide, set delicate metering pump discharge as 30ml/min, pressure is
3.50MPa injects double screw extruder, and polypropylene is acted in organic peroxide initiator, high-temperature fusion and screw rod shearing
Under, free radical cracking reaction occurs, molecular weight is lower by height, and melting means is got higher by low；
Vacuum degree is controlled in S3, vacuum volatilization device in -0.08~-0.06MPa, the small molecule removed in fused materials is waved
Hair property organic matter；Non-fusant and polymer gel in mixing are stopped by melt filtration net, is realized not using automatic net-changing device
Draping is shut down, the melt after reaction is flowed out from extruder die head；
S4, cooling trough are not connected to cooling-water machine, after the melt natural cooling of outflow, solidify into strips under pelletizing machine travel
It is cooled and shaped in the sink, dries up laggard pelleter pelletizing through efficient water-removing device air blast；
S5, after removing even knife material, clay and tiny particle by vibrating screen, particle is through air blast feeder or Roots's wind
Machine is sent into circulation baking material storehouse；
S6, particle are 80 DEG C of circulation baking material storehouse through temperature setting, after baking material 4h homogenizing, particle surface layer contained humidity and
Low boiling point small organic molecule can be taken out of by thermal current, achieve the purpose that dry and reduce smell.
This comparative example 6-1 through extruder extrusion, tie rod, pelletizing, dry to obtain product (no cooling-water machine cooling step).Product object
Property is shown in Table 1.
Comparative example 6-2
S1, firstly, with the mass ratio of 1.4:1 by Sorbitol Nucleator two (3,4 one dimethyl benzylidene) D-sorbite
It is mixed with rosin acids nucleating agent Dehydroabietate, Compositional type transparent nucleater is formed, then by the polypropylene powder of 99.35kg
Expect the antioxidant of (225 powder of the trade mark), 500g Compositional type transparent nucleater, the Lubricate EBS of 50g, 50g antioxidant 1010,50g
168 are uniformly mixed in high speed mixer, claim to put into middle hopper from 2# weightlessness；Extruder revolving speed is set as 350 revs/min,
Weightless total blanking velocity is referred to as 450kg/h, and setting 2# weightlessness feeding ratio is referred to as 100%, and material is through middle hopper feeding to extrusion
Machine；
S2, free radical type initiator di-t-butyl peroxide, setting delicate metering pump discharge as 30ml/min, pressure is
3.50MPa injects double screw extruder, and polypropylene is acted in organic peroxide initiator, high-temperature fusion and screw rod shearing
Under, free radical cracking reaction occurs, molecular weight is lower by height, and melting means is got higher by low；
Vacuum degree is controlled in S3, vacuum volatilization device in -0.04~-0.02MPa, the small molecule removed in fused materials is waved
Hair property organic matter；Non-fusant and polymer gel in mixing are stopped by melt filtration net, is realized not using automatic net-changing device
Draping is shut down, the melt after reaction is flowed out from extruder die head；
S4, the cooling trough for being immediately then 20 DEG C through temperature are cooling, solidify under pelletizing machine travel into strips in sink
Middle cooling and shaping dry up laggard pelleter pelletizing through efficient water-removing device air blast；
S5, remove company's knife material, clay and tiny particle by vibrating screen later to get finished product.
This comparative example 6-2 obtains product (no circulation baking material step) through extruder extrusion, tie rod, cooling, pelletizing.The physical property of product
It is shown in Table 1.
Embodiment 7
The present embodiment and embodiment 6 the difference is that: in step sl, with the mass ratio of 1.8:1 by glucitols
(3, the 4 one dimethyl benzylidene) D-sorbite of nucleating agent two and the mixing of rosin acids nucleating agent Dehydroabietate, form Compositional type
Transparent nucleater；The physical property of product is shown in Table 1.
Embodiment 8
The present embodiment and embodiment 6 the difference is that: in step sl, with the mass ratio of 1.2:1 by glucitols
(3, the 4 one dimethyl benzylidene) D-sorbite of nucleating agent two and the mixing of rosin acids nucleating agent Dehydroabietate, form Compositional type
Transparent nucleater.The physical property of product is shown in Table 1.
Embodiment 9
The present embodiment and embodiment 6 the difference is that: in step sl, with the mass ratio of 1.9:1 by glucitols
(3, the 4 one dimethyl benzylidene) D-sorbite of nucleating agent two and the mixing of rosin acids nucleating agent Dehydroabietate, form Compositional type
Transparent nucleater.The physical property of product is shown in Table 1.
Embodiment 10
The present embodiment and embodiment 6 the difference is that: in step sl, with the mass ratio of 1.1:1 by glucitols
(3, the 4 one dimethyl benzylidene) D-sorbite of nucleating agent two and the mixing of rosin acids nucleating agent Dehydroabietate, form Compositional type
Transparent nucleater.The physical property of product is shown in Table 1.
As it can be seen from table 1 initiator type, initiator flow, PP material resin, nucleating agent, antioxidant and extrusion
Technological parameter can all have in various degree the performances such as product melting means, molecular weight distribution, yellow colour index, ash content, volatile matter, isotacticity
Influence.Melting means characterizes the mobility of material, and melting means shows that more greatly material flowability is better；Volatile matter and smell table of grading sign
The smell size of material, volatile matter is lower, oder levels are smaller illustrates that smell is smaller；Isotacticity characterizes the molecule link of material
Structure alignment degree, in general, the isotacticity more high grade of transparency are better；Molecular weight distributing index is material weight average molecular weight (Mw)
With the ratio of number-average molecular weight (Mn), for fibre-grade crystalline material, molecular weight distributing index is the smaller the better；Yellow colour index
The size for characterizing the partially yellow degree of material, for transparent PP, when usual yellow colour index < 1.5, range estimation will not be obviously partially yellow.
In summary index, it may be to know that wherein embodiment 1,2,3 shows that the adding proportion of initiator can influence product odour, volatile matter
And yellow colour index；Also, on the basis of not adding Compositional type transparent nucleater, utility model device and technique item are utilized
Part can also obtain the super-high fluidity polypropylene compared with high transparency, lower smell；Embodiment 4,5,6 shows that transparent nucleater can
The light transmittance of polypropylene melt-blown material is significantly improved, reduces yellow colour index, it is saturating that cooling water keeps lower temperature to be conducive to material
The raising of light rate；Comparative example 4-1,5 show that the preferable one-component transparent nucleater of current using effect is in smell, yellow in the market
Index, transparency etc. and the special Compositional type transparent nucleater of the utility model have certain gap, and comparative example 4-2 shows
The synergistic effect for compounding other ingredients such as nucleating agent and acrylic resin, needs to meet certain content proportion relation, Compositional type
Nucleating agent is more than certain component, can to polypropylene molecular chain around nucleation dosage form at nucleus cause the process that crystallizes it is negative
It influences, declines the parameter indexes such as mobility, while product ash content can also be promoted, be unfavorable for the melt-out spinning molding of product；
The test result and embodiment 1-5 of embodiment 6 compare, and it is little to show that premix mode influences material property；4-6 pairs of embodiment
Than, show that different Compositional type transparent nucleaters can also generate a degree of influence to the processability of product, and this shadow
Sound is the promotion of matter for properties of product promotion；It can be seen that from the smell of each embodiment and volatilization divided data practical
The biggish negative pressure of vacuum devolatilization of novel introducing and hot-air circulation baking material thermal desorption advantageously reduce the oder levels of material and wave
Hair divides content.Also, comparative example 6-1 illustrates the cooling device of the utility model introducing by the way that quickly cooling can to material strip
The transparency of product is improved, yellow colour index is reduced；The circulation baking material that comparative example 6-2 illustrates that the utility model uses can obviously reduce
The smell of product.Therefore, the utility model by using special formulation and combines completely new technique and related device, compares existing skill
Art substantially improves the transparency of super-high fluidity polypropylene product, and greatly limit reduces product odour and volatile matter content.
Through testing, the test of end properties obtained by embodiment 7-8, compared with the performance of embodiment 6, major parameter light transmittance has lower
The decline of amplitude, the numerical value of yellow colour index have increasing for lower-magnitude, are declined in performance, but can satisfy to low smell
The preparation requirement of high transparency superelevation flow polypropylene, compared with the prior art in the tighter transparency of melt-blown material and mist degree it is more preferable.It is real
It applies as the mass ratio of glucitols and rosin acid salt nucleating agent changes in a 9-10, it is molten more than obtained by suitable ratio range
Material spray finished product has sharp fall on light transmittance, yellow colour index, and performance melt-blown material product more in the prior art does not have
Competitive advantage also indicates that the compound system of nucleating agent is complex, and not simple several mixing at nuclear fuel material are related to
The reaction of specific quantity and a variety of groups of type and synergistic are anti-reflection, and proportion is improper to be readily available the effect run counter to desire.
In view of the preparation-obtained low smell high transparency super-high fluidity polypropylene of the above various embodiments, applied molten
In blown non-woven fabric preparation, specifically, batching continuous one through high-temperature fusion, spinneret, paving guiding principle, hot pressing using the polypropylene melt material spray
The non-woven fabrics for the melt-blown process production that footwork produces, has nontoxic, tasteless and nonirritant, excellent in mechanical performance, is specifically shown in
Performance test result in table 2, it can be seen that resulting melt is prepared with specific device, formula, technique using the utility model
Non-woven fabrics made by material spray is finally embodied on non-woven fabrics because of the synergistic effect on molecular structure and also obtains excellent power
Performance is learned, meets the health and comfort level and the requirements such as durable of the mankind, obtains excellent public praise on the market.Meanwhile
Compared with the prior art super-high fluidity polypropylene product transparency that the utility model produces improves, reduces mist degree, can promote
The popularization and use in high transparency bonded fabric product field.
The strength test result of 2. melt-blown nonwoven cloth material of table
Note: tensile strength test is carried out using electronics strength tester, is tried using the bar shaped having a size of 25cm long, 5cm wide
Sample, clamping length 20cm, tensile speed 100mm/min.
It should be noted that the above is only the preferred embodiment of the utility model.It should be pointed out that for this technology
For the those of ordinary skill in field, without departing from the principle of this utility model, several improvement and profit can also be made
Decorations, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of low polyacrylic preparation facilities of smell high transparency super-high fluidity characterized by comprising
It is equipped with positioned at the middle hopper squeezed out on the upside of machine inlet, above the middle hopper for carrying out precise weighing to raw material
It is weightless claim, the weightlessness side of being much of is equipped with the high speed mixer for placing mixture；
It is additionally provided with initiator filler on the extruder, is connected in turn above filler and causes for accurately adding free radical
The precision metering pump and initiator tank of agent；
Several small molecule volatilizations being used to remove in fused materials are additionally provided in the downstream of initiator filler on the extruder
The vacuum volatilization device of property organic matter, is additionally provided in the exit of extruder die head for stopping non-fusant and polymerization in mixture
The strainer of object gel and automatic net-changing device make the melt after reacting from the smooth outflow of extruder die head；
Extruder die head outlet flows to cooling device, and the cooling device includes face die head exit to melt after accepting reaction
The stainless steel cooling trough of body, the bracket for supporting the sink, the cooling-water machine immediately below sink are set respectively on the cooling-water machine
Cooling-water machine water outlet, cooling-water machine water inlet are set, the cooling-water machine water outlet is connected to sink side by cooling-water machine outlet pipe, is cold
Water dispenser water inlet is connected to by cooling-water machine water inlet pipe with the sink other side, thus, cooling-water machine and cooling trough, cooling-water machine are intake
Pipe, cooling-water machine outlet pipe form cooling water circulation loop；Initial water inlet pipe and control valve, use are also connected on the cooling trough
In injecting cooling water into sink；
The cooling trough downstream sets gradually efficient water-removing device, pelleter, vibrating screen, receiving hopper and several concatenated circulations
Baking material storehouse.
2. preparation facilities according to claim 1, it is characterised in that:
The precision metering pump is one of plunger pump, diaphragm pump, screw pump.
3. preparation facilities according to claim 1, it is characterised in that:
Chemical feed pipe in the initiator tank is connected to by precision metering pump with the 2nd~6 section of extruder barrel from feed end meter.
4. preparation facilities according to claim 1, it is characterised in that:
The automatic net-changing device is set as Double-plunger net-changing device or crawler-type net-changing device.
5. preparation facilities according to claim 1, it is characterised in that:
The vacuum volatilization device connects two or more extruder barrel vacuum ports.
6. preparation facilities according to claim 1, it is characterised in that:
The temperature control of the cooling-water machine is 5~50 DEG C, and temperature-controlled precision is ± 5 DEG C.
7. preparation facilities according to claim 1, it is characterised in that:
The baking material temperature control in the circulation baking material storehouse is 60~145 DEG C.
8. preparation facilities according to claim 7, it is characterised in that:
The baking material temperature control in the circulation baking material storehouse is 70~100 DEG C.
9. preparation facilities according to claim 1, it is characterised in that:
The extruder uses double screw extruder；The draw ratio of the double screw extruder is 40~70；Extruder barrel body temperature
Degree is 145~300 DEG C；Screw speed is set as 200~800 revs/min.
10. preparation facilities according to claim 9, it is characterised in that:
The draw ratio of the double screw extruder is 48~60；Extruder barrel temperature setting is 175~265 DEG C；Screw speed
It is 250~500 revs/min.
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| CN109503935A (en) * | 2018-12-14 | 2019-03-22 | 大韩道恩高分子材料(上海)有限公司 | A kind of low smell high transparency super-high fluidity polypropylene and its preparation facilities and method |
| CN111455559A (en) * | 2020-04-15 | 2020-07-28 | 北京机科国创轻量化科学研究院有限公司德州分公司 | Short-process melt-blown non-woven fabric processing technology and device and non-woven fabric |
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| CN111455559B (en) * | 2020-04-15 | 2022-02-01 | 北京机科国创轻量化科学研究院有限公司德州分公司 | Short-process melt-blown non-woven fabric processing technology and device and non-woven fabric |
| CN111514656A (en) * | 2020-04-17 | 2020-08-11 | 天华化工机械及自动化研究设计院有限公司 | Production process of one-step melt-blown polypropylene electret filter material |
| CN111485327A (en) * | 2020-04-22 | 2020-08-04 | 四川中旺科技有限公司 | Melt-blown fabric manufacturing device and method |
| CN111571985A (en) * | 2020-05-20 | 2020-08-25 | 湖南盛锦新材料有限公司 | High-load low-resistance melt-blown material production equipment and method |
| CN111892770A (en) * | 2020-07-22 | 2020-11-06 | 广东聚石化学股份有限公司 | Melt-blown polypropylene material and preparation equipment and method thereof |
| CN111892770B (en) * | 2020-07-22 | 2023-01-17 | 广东聚石化学股份有限公司 | Melt-blown polypropylene material and preparation equipment and method thereof |
| IT202100028754A1 (en) * | 2021-11-12 | 2023-05-12 | Sermag S R L | DEODORIZATION PROCESS OF POLYMERIC MATERIALS |
| EP4180465A1 (en) * | 2021-11-12 | 2023-05-17 | SERMAG S.r.l. | Process for deodorizing polymeric materials |
| CN114536713A (en) * | 2022-02-21 | 2022-05-27 | 华中科技大学 | Extruder devolatilization degassing device and extruder |
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