CN106221109A - A kind of high fluidity elastomer and preparation method thereof - Google Patents
A kind of high fluidity elastomer and preparation method thereof Download PDFInfo
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- CN106221109A CN106221109A CN201610661909.0A CN201610661909A CN106221109A CN 106221109 A CN106221109 A CN 106221109A CN 201610661909 A CN201610661909 A CN 201610661909A CN 106221109 A CN106221109 A CN 106221109A
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/04—Thermoplastic elastomer
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Abstract
The invention discloses a kind of high fluidity elastomer and preparation method thereof.Elastomer is pulverized by the Fluid nitrogen cryopreservation disintegrating apparatus utilizing our company, utilize the auxiliary agents such as lubricant, plasticizer and functional additive that the elastomer particle pulverized is carried out surface modification, the surface reducing particle can, alleviate particle and interparticle friction, improve the lubricity of particle surface, therefore, this elastomer has higher mobility, and processing characteristics is excellent；And the auxiliary agent of inside is difficult to migrate, himself there is higher heat stability, and weatherability, volatilization the most oxidizable, difficult, electrical insulation capability is excellent, belongs to environmentally friendly high fluidity elastomer, with low cost, it is suitable for industrialized great production, special-buffer Material Field can not only be applied to, and can be a large amount of as high-grade household material requested.Can be additionally used in high-performance expanded material, footwear material, high-grade PUR and the efficient synergist of other PURs, fire-retardant etc..
Description
Technical field
The present invention relates to a kind of thermoplastic elastomer (TPE) and preparation method thereof, particularly relate to a kind of high fluidity elastomer and
Preparation method.
Background technology
Thermoplastic elastomer (TPE) industry at present has evolved at a relatively high level, and commercial standing becomes more and more important, and new varieties are not
Breaking and emerge in large numbers, production firm gets more and more.Mainly reason be thermoplastic elastomers have vulcanite physical and mechanical properties and
The performance of technical process of flexible plastic.Due to be not required to again as rubber through heat cure, thus use simple plastic processing
Machinery can be easily made final products.The mainly weather strip for automobile modified SBS of my unit one belongs to research,
SEBS, therefore considers that the direction of research is SBS, SEBS analog thermoplastic elastomer.
Thermoplastic elastomers has high resiliency, high-modulus, ageing-resistant, oil resistivity, and most of thermoplastic elastomers have good
Good processing characteristics, but still have minority thermoplastic elastomer (TPE) processing characteristics to be limited by himself structure, its processing characteristics is subject to
Large effect, Chinese patent CN 101058656 A discloses thermoplastic elastic preparation, but its processing characteristics is subject to
Bigger restriction, runs into the defects such as light is the most aging, it is clear that existing technology seems not enough.
The property that high-molecular-weight thermoplastic elastomer itself is had, i.e. high resilience, weatherability, high impact properties
Etc., improve performance by self as thermoplastic elastomer (TPE).Being limited in that of this high-molecular-weight thermoplastic elastomer
Viscosity is high, and therefore poor fluidity limits use.So the mobility improving high molecular weight material awaits studying further.
The second is the performance improving thermoplastic elastomer (TPE) with the powder butyronitrile rubber fabulous with thermoplastic elastic compatability, makes him
Close to the performance of rubber, and don't lose the elegance of plastics.Test result indicate that powder butyronitrile rubber is improving thermoplastic elastic
Body aspect of performance is successful, and butyronitrile rubber can be blended with arbitrary proportion with thermoplastic elastomer (TPE), but will be according to performance requirement
Determine with price.Although both modes have been applied to industrialized production, but also deposit various problem.Such as
Owing to thermoplastic elastomer (TPE) is more sensitive than other materials, so coming for high-molecular-weight thermoplastic elastomer to the requirement of temperature
Say, it would be desirable to research reduces Product processing temperature so that can use in a lot of fields further.
Summary of the invention
It is an object of the invention to provide a kind of high fluidity elastomer and preparation method thereof.
The technical solution used in the present invention is as follows:
To achieve these goals, the technical scheme is that
A kind of high fluidity elastomer and preparation method thereof, its constituent and weight fraction proportioning be: elastomer (SBS/
SEBS/SIS) 100 parts, plasticizer 5 ~ 15 parts, functional additive 3 ~ 7 parts, stabilizer 0.1 ~ 0.5 part, lubricant 1 ~ 5 part, antioxygen
Agent 0.05 ~ 0.1 part；
1. a kind of high fluidity elastomer described in and preparation method thereof, it is characterised in that wherein said elastomer be SBS,
One or more in SEBS or SIS.
2. a kind of high fluidity elastomer described in and preparation method thereof, it is characterised in that wherein said plasticizer is divided into
Primary plasticizer and co-plasticizer, primary plasticizer is dioctyl phthalate, dibutyl phthalate or phthalic acid two
One or more in heptyl ester；Co-plasticizer is the one in di-n-octyl sebacate, dibutyl sebacate or dihexyl sebacate
Or it is several.
3. a kind of high fluidity elastomer described in and preparation method thereof, it is characterised in that wherein said functional additive
For one or more in ACR-302, ACR-405 or ACR-503.
4. a kind of high fluidity elastomer described in and preparation method thereof, it is characterised in that wherein said stabilizer is
Ca-Zn stabilizer, Ca-Mg stabilizer one or more.
5. a kind of high fluidity elastomer described in and preparation method thereof, it is characterised in that wherein said lubricant is divided into
In-lubricant and external lubricant, one or more during wherein in-lubricant is calcium stearate, zinc stearate；External lubricant is solid
In paraffin body, silicone oil one or more.
6. a kind of high fluidity elastomer described in and preparation method thereof, it is characterised in that wherein said antioxidant be β-
(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester.
Elastomer is pulverized, then by elasticity by the Fluid nitrogen cryopreservation disintegrating apparatus being had first with our company
Body powder, lubricant, stabilizer join after being preheated in the high-speed mixer of uniform temperature carry out mix homogeneously, more slowly
Ground adds DOP.Owing to mixed at high speed produces interior-heat, therefore final mixing temperature will rise to 100 DEG C ~ 105 DEG C, and now, DOP is elastic
Body powder absorbs, and produces swelling, and other compounding ingredient is also dispersed in compound.Then material is put in cooling mixing machine,
When being down to 50 DEG C, after adding functional additive mix homogeneously, discharging proceeds to extruding zone, wherein in double-screw extruder screw temperature
One 80 ~ 100 DEG C of district, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175 DEG C.Mixture enters in screw rod melted
The template extrusion of a diameter of 3mm of porous of head upper annular arrangement is entered after mixing.By being arranged on the rotating blade of orifice surface,
It is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cools down simultaneously, use to be tested.
A kind of high fluidity elastomer and preparation method thereof, is carried out as steps described below:
(1) pre-treatment of raw material: all materials involved by this patent are placed in vacuum drying oven dry 8 hours standby
With.
(2) melt blending of composite: the Fluid nitrogen cryopreservation disintegrating apparatus being had first with our company is to bullet
Gonosome is pulverized, and then elastomer powder, lubricant, stabilizer join the high-speed mixer being preheated to uniform temperature
In carry out mix homogeneously after, more gently add DOP.Owing to mixed at high speed produces interior-heat, therefore final mixing temperature will rise to 100
DEG C ~ 105 DEG C, now, DOP is absorbed by elastomer powder, produces swelling, and other compounding ingredient is also dispersed in compound.Then
Material is put in cooling mixing machine, and when being down to 50 DEG C, after adding functional additive mix homogeneously, discharging proceeds to extruding zone, wherein
Double-screw extruder screw temperature Zhong-1 block 80 ~ 100 DEG C, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175
℃.Mixture enters the template extrusion of a diameter of 3mm of porous entering the arrangement of head upper annular in screw rod after melting mixing.By pacifying
It is contained in the rotating blade of orifice surface, is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cool down simultaneously, to be measured
On probation.
Beneficial effect:
Elastomer is in the course of processing, owing to himself quality is soft, and strong influence its operability adding man-hour and flowing
Property, therefore, the temperature residing for elasticity is reduced to vitrification temperature by the Fluid nitrogen cryopreservation disintegrating apparatus utilizing our company to be had
Near Du, elastomer is pulverized by the mode of recycling Mechanical Crushing, obtains elastomer crumb, increases the ratio table of elastomer
Face, the surface modification for the later stage has good effect.
Adding lubricant in this system to be, high speed processing equipment produces high shearing force, viscosity to polymer melt
The highest, more mechanical energy is converted to heat energy (being dissipated).This can cause hot-spot or less desirable " shearing burning ", such as
I.e. can occur in runner.Therefore the lubricant reducing heat dissipation is added.But both lubricants must have very with polymer
The good compatibility.Zinc stearate be a kind of not only economy but also have good in the lubricant of lubrication.Outer lubrication can effectively prevent from melting
Melt attachment of polymers in the effect on heat-processing equipment surface, select the hard paraffin extensively sold on market as external lubricant.
It addition, the effect adding ACR-302 is that (1) surface smoothness is due to the addition of ACR-302, one " slide wall " bullet
Gonosome can be transformed into one " viscous wall " melt (shear flow), and the change of this hydrodynamic performance not only affects and plastified
Journey, and have influence on the surface quality of finished product and semi-finished product.(2) addition avoiding melt fracture improves the mechanicalness of melt
Can, as prevented melt fracture, it is allowed to high-temperature fluidized, ensure that high output the most simultaneously.(3) to the facilitation of die swelling with
The addition of ACR-302 copolymer, die swelling coefficient is also increasing.This has also absolutely proved that polymer electrolyte is added by die swelling
The dependence of work auxiliary molecules amount.
Detailed description of the invention
Heretofore described material performance test method is as follows:
High fluidity elastomer is prepared as in double screw extruder the particle being of moderate size, uses Melt Flow Rate Measurer pair
The mobile performance of this kind of high fluidity elastomer is measured, with reference to standard GB/T 3682 " thermoplastic melt flows speed
The mensuration of rate " test blend melt index；The mechanical property of test sample, reference standard is GB/T 2013525-1992
" plastic tensile method for testing performance " test sample tensile property.
Embodiment 1
Involved all materials be placed in vacuum drying oven drying 8 hours standby, first 10 kilograms of elastomers are utilized
Elastomer is pulverized by the Fluid nitrogen cryopreservation disintegrating apparatus that our company is had, and (75g is stearic to be subsequently adding 100g lubricant
Acid zinc and 25g hard paraffin mixture), 10g Ca-Zn stabilizer joins in the high-speed mixer being preheated to uniform temperature
After carrying out mix homogeneously, more gently add 100g plasticizer (80g dioctyl phthalate and 20g di-n-octyl sebacate).
Owing to mixed at high speed produces interior-heat, add 5g β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester and incite somebody to action
Mixing temperature will rise to 100 DEG C ~ 105 DEG C, and now, dioctyl phthalate and di-n-octyl sebacate are absorbed by elastomer powder,
Producing swelling, other compounding ingredient is also dispersed in compound.Then material is put in cooling mixing machine, be down to 50 DEG C
Time, after adding 50g functional additive (ACR-302) mix homogeneously, discharging proceeds to extruding zone, wherein double-screw extruder screw temperature
Degree Zhong-1 block 80 ~ 100 DEG C, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175 DEG C.Mixture enters in screw rod
The template extrusion of a diameter of 3mm of porous of head upper annular arrangement is entered after melting mixing.By the rotation being arranged on orifice surface
Blade, is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cools down simultaneously, uses Melt Flow Rate Measurer to this
The mobile performance planting high fluidity elastomer is measured, with reference to standard GB/T 3682 " thermoplastic melt flow rate (MFR)
Mensuration " test blend melt index；The mechanical property of test sample, reference standard is that GB/T 2013525-1992 " moulds
Material Erichsen test method " test sample tensile property.Test result is shown in Table one.
Embodiment 2
Involved all materials be placed in vacuum drying oven drying 8 hours standby, first 10 kilograms of elastomers are utilized
Elastomer is pulverized by the Fluid nitrogen cryopreservation disintegrating apparatus that our company is had, and (275g is hard to be subsequently adding 500g lubricant
Fat acid zinc and 225g hard paraffin mixture), 50g Ca-Zn stabilizer join the high-speed mixer being preheated to uniform temperature
In carry out mix homogeneously after, more gently add 1kg plasticizer (800g dioctyl phthalate and 200g decanedioic acid two are pungent
Ester).Owing to mixed at high speed produces interior-heat, add 5g β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester
And mixing temperature will be risen to 100 DEG C ~ 105 DEG C, now, dioctyl phthalate and di-n-octyl sebacate are inhaled by elastomer powder
Receiving, produce swelling, other compounding ingredient is also dispersed in compound.Then material is put in cooling mixing machine, be down to 50
DEG C time, add discharging after 50g functional additive (ACR-302) mix homogeneously and proceed to extruding zone, wherein double-screw extruder screw
Temperature Zhong-1 block 80 ~ 100 DEG C, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175 DEG C.Mixture enters screw rod
The template extrusion of a diameter of 3mm of porous of head upper annular arrangement is entered after middle melting mixing.By the rotation being arranged on orifice surface
Rotor sheet, is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cools down simultaneously, uses Melt Flow Rate Measurer pair
The mobile performance of this kind of high fluidity elastomer is measured, with reference to standard GB/T 3682 " thermoplastic melt flows speed
The mensuration of rate " test blend melt index；The mechanical property of test sample, reference standard is GB/T 2013525-1992
" plastic tensile method for testing performance " test sample tensile property.Test result is shown in Table one.
Embodiment 3
Involved all materials be placed in vacuum drying oven drying 8 hours standby, first 10 kilograms of elastomers are utilized
Elastomer is pulverized by the Fluid nitrogen cryopreservation disintegrating apparatus that our company is had, and (275g is hard to be subsequently adding 500g lubricant
Fat acid zinc and 225g hard paraffin mixture), 50g Ca-Zn stabilizer join the high-speed mixer being preheated to uniform temperature
In carry out mix homogeneously after, more gently add 100g plasticizer (80g dioctyl phthalate and 20g decanedioic acid two are pungent
Ester).Owing to mixed at high speed produces interior-heat, add 10g β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester
And mixing temperature will be risen to 100 DEG C ~ 105 DEG C, now, dioctyl phthalate and di-n-octyl sebacate are inhaled by elastomer powder
Receiving, produce swelling, other compounding ingredient is also dispersed in compound.Then material is put in cooling mixing machine, be down to 50
DEG C time, add discharging after 100g functional additive (ACR-302) mix homogeneously and proceed to extruding zone, wherein double-screw extruder screw
Temperature Zhong-1 block 80 ~ 100 DEG C, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175 DEG C.Mixture enters screw rod
The template extrusion of a diameter of 3mm of porous of head upper annular arrangement is entered after middle melting mixing.By the rotation being arranged on orifice surface
Rotor sheet, is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cools down simultaneously, uses Melt Flow Rate Measurer pair
The mobile performance of this kind of high fluidity elastomer is measured, with reference to standard GB/T 3682 " thermoplastic melt flows speed
The mensuration of rate " test blend melt index；The mechanical property of test sample, reference standard is GB/T 2013525-1992
" plastic tensile method for testing performance " test sample tensile property.Test result is shown in Table one.
Embodiment 4
Involved all materials be placed in vacuum drying oven drying 8 hours standby, first 10 kilograms of elastomers are utilized
Elastomer is pulverized by the Fluid nitrogen cryopreservation disintegrating apparatus that our company is had, and (75g is stearic to be subsequently adding 100g lubricant
Acid zinc and 25g hard paraffin mixture), 10g Ca-Zn stabilizer joins in the high-speed mixer being preheated to uniform temperature
After carrying out mix homogeneously, more gently add 1kg plasticizer (800g dioctyl phthalate and 200g di-n-octyl sebacate).
Owing to mixed at high speed produces interior-heat, add 5g β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester and incite somebody to action
Mixing temperature will rise to 100 DEG C ~ 105 DEG C, and now, dioctyl phthalate and di-n-octyl sebacate are absorbed by elastomer powder,
Producing swelling, other compounding ingredient is also dispersed in compound.Then material is put in cooling mixing machine, be down to 50 DEG C
Time, after adding 100g functional additive (ACR-302) mix homogeneously, discharging proceeds to extruding zone, wherein double-screw extruder screw temperature
Degree Zhong-1 block 80 ~ 100 DEG C, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175 DEG C.Mixture enters in screw rod
The template extrusion of a diameter of 3mm of porous of head upper annular arrangement is entered after melting mixing.By the rotation being arranged on orifice surface
Blade, is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cools down simultaneously, uses Melt Flow Rate Measurer to this
The mobile performance planting high fluidity elastomer is measured, with reference to standard GB/T 3682 " thermoplastic melt flow rate (MFR)
Mensuration " test blend melt index；The mechanical property of test sample, reference standard is that GB/T 2013525-1992 " moulds
Material Erichsen test method " test sample tensile property.Test result is shown in Table one.
Embodiment 5
Involved all materials be placed in vacuum drying oven drying 8 hours standby, first 10 kilograms of elastomers are utilized
Elastomer is pulverized by the Fluid nitrogen cryopreservation disintegrating apparatus that our company is had, and (275g is hard to be subsequently adding 500g lubricant
Fat acid zinc and 225g hard paraffin mixture), 50g Ca-Zn stabilizer join the high-speed mixer being preheated to uniform temperature
In carry out mix homogeneously after, more gently add 1kg plasticizer (800g dioctyl phthalate and 200g decanedioic acid two are pungent
Ester).Owing to mixed at high speed produces interior-heat, add 10g β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester
And mixing temperature will be risen to 100 DEG C ~ 105 DEG C, now, dioctyl phthalate and di-n-octyl sebacate are inhaled by elastomer powder
Receiving, produce swelling, other compounding ingredient is also dispersed in compound.Then material is put in cooling mixing machine, be down to 50
DEG C time, add discharging after 100g functional additive (ACR-302) mix homogeneously and proceed to extruding zone, wherein double-screw extruder screw
Temperature Zhong-1 block 80 ~ 100 DEG C, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175 DEG C.Mixture enters screw rod
The template extrusion of a diameter of 3mm of porous of head upper annular arrangement is entered after middle melting mixing.By the rotation being arranged on orifice surface
Rotor sheet, is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cools down simultaneously, uses Melt Flow Rate Measurer pair
The mobile performance of this kind of high fluidity elastomer is measured, with reference to standard GB/T 3682 " thermoplastic melt flows speed
The mensuration of rate " test blend melt index；The mechanical property of test sample, reference standard is GB/T 2013525-1992
" plastic tensile method for testing performance " test sample tensile property.Test result is shown in Table one.
Comparative example 6[1]:
Polypropylene PP/ polypropylene butyl ester PBA intermediate 100 parts, SEBS5 part, compatilizer 5 parts, plasticizer 10 parts, antioxidant 0.2
Part, light stabilizer 0.2 part, cross-linking agent 4 parts；First say that PBA, initiator immerse in PP, form the intermediate that PP comprises PBA, according to
Formula described above is taken.Above-mentioned raw materials is placed on high-speed mixer and mixing 3 ~ 5 minutes, is uniformly dispersed.At double screw extruder
In melt extrude pelletize.Use Melt Flow Rate Measurer that the mobile performance of this kind of high fluidity elastomer is measured, reference
The melt index of standard GB/T 3682 " mensuration of thermoplastic melt flow rate (MFR) " test blend；The power of test sample
Learning performance, reference standard is GB/T 2013525-1992 " plastic tensile method for testing performance " test sample tensile property.Test
The results are shown in Table one.
The mobility of 1. 1 kinds of high fluidity elastomers of table and mechanical property result
Claims (8)
1. high fluidity elastomer and preparation method thereof, it is characterised in that its component and mass percent are as follows:
100 parts of elastomer
Plasticizer 1 ~ 10 part
Functional additive 0.5 ~ 1 part
Stabilizer 0.1 ~ 0.5 part
Lubricant 1 ~ 5 part
0.05 ~ 0.1 part of antioxidant.
A kind of high fluidity elastomer the most according to claim 1 and preparation method thereof, it is characterised in that wherein said
Elastomer is one or more in EVA, TPU, SBS, SEBS or SIS.
A kind of high fluidity elastomer the most according to claim 1 and preparation method thereof, it is characterised in that wherein said
Plasticizer is divided into primary plasticizer and co-plasticizer, and primary plasticizer is dioctyl phthalate, dibutyl phthalate or neighbour
One or more in phthalic acid two heptyl ester；Co-plasticizer is that di-n-octyl sebacate, dibutyl sebacate or decanedioic acid two are own
One or more in ester.
A kind of high fluidity elastomer the most according to claim 1 and preparation method thereof, it is characterised in that wherein said
Functional additive is one or more in ACR-302, ACR-405 or ACR-503.
A kind of high fluidity elastomer the most according to claim 1 and preparation method thereof, it is characterised in that wherein said
Stabilizer be Ca-Zn stabilizer, Ca-Mg stabilizer one or more.
A kind of high fluidity elastomer the most according to claim 1 and preparation method thereof, it is characterised in that wherein said
Lubricant is divided into in-lubricant and external lubricant, one or more during wherein in-lubricant is calcium stearate, zinc stearate；Outward
Lubricant is one or more in hard paraffin, silicone oil.
A kind of high fluidity elastomer the most according to claim 1 and preparation method thereof, it is characterised in that wherein said
Antioxidant is β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester.
8. high fluidity elastomer and preparation method thereof, it is characterised in that according to the following step:
(1) pre-treatment of raw material: all materials involved by this patent are placed in vacuum drying oven dry 8 hours standby
With；
(2) melt blending of composite: the Fluid nitrogen cryopreservation disintegrating apparatus being had first with our company is to elastomer
Pulverize, then the elastomer particle crushed, lubricant, stabilizer are joined the mixed at high speed being preheated to uniform temperature
After machine carries out mix homogeneously, more gently add DOP；Owing to mixed at high speed produces interior-heat, therefore final mixing temperature will rise to
100 DEG C ~ 105 DEG C, now, DOP is absorbed by elastomer powder, produces swelling, and other compounding ingredient is also dispersed in compound；So
Afterwards material being put in cooling mixing machine, when being down to 50 DEG C, after adding functional additive mix homogeneously, discharging proceeds to extruding zone, its
Middle double-screw extruder screw temperature Zhong-1 block 80 ~ 100 DEG C, two 130 ~ 150 DEG C of districts, three 160 ~ 170 DEG C of districts, 4th district: 170 ~ 175
℃；Mixture enters the template extrusion of a diameter of 3mm of porous entering the arrangement of head upper annular in screw rod after melting mixing；By pacifying
It is contained in the rotating blade of orifice surface, is cut into the granule of a length of about 8mm while hot, in wind delivers to storage tank, cool down simultaneously, to be measured
On probation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661909.0A CN106221109A (en) | 2016-08-12 | 2016-08-12 | A kind of high fluidity elastomer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610661909.0A CN106221109A (en) | 2016-08-12 | 2016-08-12 | A kind of high fluidity elastomer and preparation method thereof |
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| CN112543697A (en) * | 2018-08-03 | 2021-03-23 | 德雷斯勒集团有限两合公司 | Method and apparatus for comminuting plastic material and for producing pulverulent material from the plastic material |
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| CN107116814A (en) * | 2017-05-22 | 2017-09-01 | 蒋静华 | A kind of inflatable elastic spheroid and preparation method thereof |
| CN112543697A (en) * | 2018-08-03 | 2021-03-23 | 德雷斯勒集团有限两合公司 | Method and apparatus for comminuting plastic material and for producing pulverulent material from the plastic material |
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