CN107033521A - Modified SBS composite and preparation method thereof - Google Patents

Modified SBS composite and preparation method thereof Download PDF

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Publication number
CN107033521A
CN107033521A CN201610920952.4A CN201610920952A CN107033521A CN 107033521 A CN107033521 A CN 107033521A CN 201610920952 A CN201610920952 A CN 201610920952A CN 107033521 A CN107033521 A CN 107033521A
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China
Prior art keywords
parts
modified
sbs composite
modified sbs
preparation
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CN201610920952.4A
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Chinese (zh)
Inventor
刘钰馨
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Guangxi Teachers College
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Guangxi Teachers College
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Priority to CN201610920952.4A priority Critical patent/CN107033521A/en
Publication of CN107033521A publication Critical patent/CN107033521A/en
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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
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of modified SBS composite and preparation method thereof, the nanocomposite constituents include：SBS70 parts, 30 parts of polystyrene, 10 20 parts of modified calcium carbonate, fluorescent material Y2O3:15 parts of 10 parts of Eu5,10 20 parts of polyvinyl chloride, 5 10 parts of alumina powder and fire retardant；It can be made by extrusion, granulation, injection molding；Meanwhile, the parallel dual-screw extruding machine used adds concentration equipment in head, and annular scraper is added in outlet.The present invention is simple and easy to apply with preparation method, and obtained modified SBS composite improves weatherability and introduces the advantage of new performance, is that the improvement that parallel dual-screw extruding machine is done also improves the quality of product.

Description

Modified SBS composite and preparation method thereof
Technical field
The present invention relates to polymeric material field, more particularly, it relates to a kind of modified SBS composite and its Preparation method.
Background technology
Applications of the SBS in some fields makes its demand rapid growth, but the defect itself existed, makes SBS application Remain certain limitation.Such as：SBS disadvantage is that weatherability is poor, and there is unsaturated double-bond in polymer is then The root of weatherability difference.And in modern society because the increasingly in short supply and plastics prices of raw materials of resource rise steadily, people To the performance requirement of material with regard to more and more higher, and the attention etc. of sustainable development and environmental protection is required to polymer It is modified.Polymer modification can be such that polymeric material self performance is significantly improved, or not have before introducing Standby performance, the use scope of such material is widened, and industrial application value is also improved.
Traditional parallel dual-screw extruding machine is when making high polymer material, because the abrasion of machinery inevitably will Iron filings or other impurities are brought into material internal, and then influence the quality of finished product.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
It is a still further object of the present invention to provide a kind of weatherability for existing SBS materials is not enough, while introducing it The modified SBS composite of the preceding performance not possessed.
It is described in order to realize according to object of the present invention and other advantages there is provided a kind of modified SBS composite Modified SBS composite includes the following raw material of part by weight：SBS70 parts, 30 parts of polystyrene, modified calcium carbonate 10-20 Part, fluorescent material Y2O3:1-5 parts of Eu5-10 parts, 10-20 parts of polyvinyl chloride, 5-10 parts of alumina powder and fire retardant.
Wherein, the preparation method of the modified calcium carbonate is：Weigh 1 part of the calcium carbonate of part by weight, silane coupler 100 parts, by volume 1：The silane coupler and ethanol are mixed to get mixed solution by 5, are then existed using high-speed mixer Under 480 revs/min of rotating speed, the mixed solution and the calcium carbonate are mixed 5 minutes, with after drying 5 hours at 80 DEG C.
The present invention also provides a kind of preparation method of modified SBS composite, including：By the SBS, polystyrene, change Property calcium carbonate, fluorescent material, polyvinyl chloride, alumina powder and fire retardant be placed in parallel dual-screw extruding machine extrusion and changed Property SBS composite semi-finished products, and cooling granulation obtains modified SBS composite particles, by the modified SBS composite particles at 70 DEG C Lower drying 3 hours, reuses injection machine and is molded by standard batten, produce the modified SBS composite.
The parallel dual-screw extruding machine include set gradually along material conveying direction feeding section, compression section, melt zone, Metering section, head section, changeover portion and mouth mold section.
It is preferred that, the temperature of the feeding section is 170-190 DEG C, and the temperature of the compression section is 180-200 DEG C, described molten The temperature for melting section is 190-210 DEG C, and the temperature of the metering section is 200-210 DEG C, and the temperature of the head section is 190-210 DEG C, the temperature of the changeover portion is 190-210 DEG C, and the temperature of the mouth mold section is 190-210 DEG C.
It is preferred that, the temperature of the injection machine is 200 DEG C -230 DEG C.
It is preferred that, the screw speed of the parallel dual-screw extruding machine is 30 revs/min.
It is preferred that, material is half full state in the parallel dual-screw extruding machine.
The present invention also provides a kind of parallel dual-screw extruding machine, and its head section, changeover portion and mouth mold section outside ring are set A concentration equipment is put, for by because the iron filings impurity that mechanical wear drops in raw material is attracted to melt top layer, outlet connects An annular scraper is connect, the radius of the annular scraper is less than the radius of the modified SBS composite semi-finished products, changed described Strike off on the top layer of property SBS composite semi-finished products.
The present invention at least includes following beneficial effect：
1st, the modified SBS fracture of composite materials strain of the invention prepared, toughness, tensile strength are improved, resistance to stress pine Relaxation performance is more preferable.
2nd, modified SBS composite prepared by the present invention can send fluorescence in the dark when occurring aging breakage Alarm signal.
3rd, modified SBS composite prepared by the present invention can effectively prevent further expanding for material aging.
4th, modified SBS composite inner impurity content prepared by the present invention is less, and quality is more preferably.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the side structure schematic diagram of parallel dual-screw extruding machine of the present invention.
Fig. 2 is the structural representation of annular scraper.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, to make those skilled in the art's reference Specification word can be implemented according to this.
It should be noted that experimental method described in following embodiments, is conventional method unless otherwise specified, institute Reagent and material are stated, unless otherwise specified, is commercially obtained.
A kind of modified SBS composite, its component includes the following raw material of part by weight：SBS70 parts, polystyrene 30 Part, 10-20 parts of modified calcium carbonate, fluorescent material Y2O3:Eu5-10 parts, 10-20 parts of polyvinyl chloride, 5-10 parts of alumina powder and 1-5 parts of fire retardant.
Modified SBS composite in the present invention, wherein SBS be using styrene, butadiene as monomer triblock copolymer, There is excellent tensile strength, big surface friction coefficient, low temperature performance well, good processability, be composite theme, Polystyrene is used for lifting the rigidity of composite, resistance heat deformability, photooxidation resistant ability, ageing-resistant ability, carbon modified Sour calcium is used for increasing the adhesion between SBS and polystyrene, prevents two-phase unsticking, improves the toughness of composite.Fluorescence Powder Y2O3:Eu is discharged when composite aging is damaged from material internal, can send glimmering in the dark after being excited by illumination Light.Polyvinyl chloride is used to improve the insulating properties of composite.The effect of alumina powder is that strand disconnection occur in composite, Discharge H+Or OH-When capture the ion, prevent the ion free state accelerate SBS agings.Fire retardant is used to prevent composite Burn in use, it is to avoid cause fire.
The preparation method of modified calcium carbonate is in the present invention：Weigh 1 part of the calcium carbonate of part by weight, silane coupler 100 parts, by volume 1：Silane coupler and ethanol are mixed to get mixed solution by 5, then using high-speed mixer 480 Rev/min rotating speed under, mixed solution and calcium carbonate are mixed 5 minutes, with after being dried 5 hours at 80 DEG C.This carbon modified Sour calcium is higher compared with the surface conjugation of ordinary calcium carbonate and polymer, and the effect of toughness reinforcing is served to polymer.
The preparation method of modified SBS composite in the present invention：By the SBS, polystyrene, modified calcium carbonate, fluorescence Powder, polyvinyl chloride, alumina powder and fire retardant are placed in extrusion in parallel dual-screw extruding machine and obtain modified SBS composite Semi-finished product, and cooling granulation obtains modified SBS composite particles, and the modified SBS composite particles are dried 3 hours at 70 DEG C, Reuse injection machine and be molded by standard batten, produce the modified SBS composite.This method is that polymer modification is the simplest And fruitful method, in the molten state, add other high polymer materials and be blended with SBS, obtained modified SBS is answered Condensation material excellent performance.
In another embodiment, the parallel dual-screw extruding machine includes the feeding set gradually along material conveying direction Section, compression section, melt zone, metering section, head section, changeover portion and mouth mold section, the temperature of the feeding section is 170-190 DEG C, The temperature of the compression section is 180-200 DEG C, and the temperature of the melt zone is 190-210 DEG C, and the temperature of the metering section is 200-210 DEG C, the temperature of the head section is 190-210 DEG C, and the temperature of the changeover portion is 190-210 DEG C, the mouth mold section Temperature be 190-210 DEG C.The temperature setting preferably can plastify raw material completely, while being less than degradation temperature again, coordinate The shear action of screw rod can preferable mixed material.
In another embodiment, the temperature of the injection machine is 200 DEG C -230 DEG C.The temperature setting can allow mixing melting uniform Material touches intracavitary in injection preferable mobility, beneficial to formed product.
In another embodiment, the screw speed of the parallel dual-screw extruding machine is 30 revs/min.The rotating speed sets phase To relatively slow, the blending and modifying of raw material can be allowed to complete more abundant.
In another embodiment, material is half full state in the parallel dual-screw extruding machine.It is full of and feeds using half Material is the mobility for considering material, and excessive feeding can be such that material is extruded from steam vent, and very few feeding then reduces the temperature in barrel Degree, is unfavorable for the mixing melting of material.
Embodiment 1
Weigh SBS70 parts, 30 parts of polystyrene, 10 parts of modified calcium carbonate, fluorescent material Y2O3:Eu5 parts, 10 parts of polyvinyl chloride, 1 part of 5 parts of alumina powder and fire retardant, are placed in parallel dual-screw extruding machine and extrude, and cooling granulation obtains compound of SBS Grain, the SBS composite particles are dried 3 hours at 70 DEG C, injection machine is reused and is molded by standard batten.After tested, this reality The tensile strength 14MPa of the standard batten in example is applied, time 410s is surrendered.
Embodiment 2
Weigh SBS70 parts, 30 parts of polystyrene, 20 parts of modified calcium carbonate, fluorescent material Y2O3:Eu10 parts, polyvinyl chloride 20 5 parts of part, 10 parts of alumina powder and fire retardant, are placed in parallel dual-screw extruding machine and extrude, and cooling granulation obtains SBS and is combined Particle, the SBS composite particles are dried 3 hours at 70 DEG C, injection machine is reused and is molded by standard batten.After tested, originally The tensile strength 14.2MPa of standard batten in embodiment, surrenders time 400s.
Embodiment 3
Weigh SBS70 parts, 30 parts of polystyrene, 15 parts of modified calcium carbonate, fluorescent material Y2O3:Eu8 parts, 15 parts of polyvinyl chloride, 3 parts of 8 parts of alumina powder and fire retardant, are placed in parallel dual-screw extruding machine and extrude, and cooling granulation obtains compound of SBS Grain, the SBS composite particles are dried 3 hours at 70 DEG C, injection machine is reused and is molded by standard batten.After tested, this reality The tensile strength 15.3MPa of the standard batten in example is applied, time 430s is surrendered.
Embodiment 4
Weigh SBS70 parts, 30 parts of polystyrene, fluorescent material Y2O3:Eu8 parts, 15 parts of polyvinyl chloride, 8 parts of alumina powder with And 3 parts of fire retardant, it is placed in parallel dual-screw extruding machine and extrudes, cooling granulation obtains SBS composite particles, the SBS is combined Particle is dried 3 hours at 70 DEG C, is reused injection machine and is molded by standard batten.After tested, the standard batten in the present embodiment Tensile strength 13.2MPa, surrender time 340s.
By the contrast of above-mentioned 4 embodiments, when SBS70 parts, it is 30 parts of polystyrene, 15 parts of modified calcium carbonate, glimmering Light powder Y2O3:When 3 parts of Eu8 parts, 15 parts of polyvinyl chloride, 8 parts of alumina powder and fire retardant, SBS has most excellent performance.
As shown in figure 1, heretofore described parallel dual-screw extruding machine is on the basis of existing, in head section, changeover portion And mouth mold section outside is arranged circumferentially a concentration equipment 1, the concentration equipment can be electromagnet.The annular scraper of the connection of outlet 2 one 3, the outlet 2 is cylindrical shape, the central shaft of the annular scraper 3 and the central axis of the outlet 2, the annular scraper 3 radius is less than the radius of the modified SBS composite semi-finished products, by the table of the modified SBS composite semi-finished products Layer strikes off, and retains the excellent semi-finished product of capability and performance.
When concentration equipment 1 is opened, the iron filings in molten state raw material are adsorbed to surface, and because ring adsorbs path Short, iron filings energy fast enriching is in raw material top layer, and when raw material is extruded by outlet 2, annular scraper 3 can will be enriched in the table of iron filings impurity Layer strikes off.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited In specific details and shown here as the legend with description.

Claims (7)

1. a kind of modified SBS composite, it is characterised in that the modified SBS composite is as follows including part by weight Raw material：SBS70 parts, 30 parts of polystyrene, 10-20 parts of modified calcium carbonate, fluorescent material Y2O3:Eu5-10 parts, polyvinyl chloride 10-20 1-5 parts of part, 5-10 parts of alumina powder and fire retardant；
Wherein, the preparation method of the modified calcium carbonate is：Weigh 1 part of the calcium carbonate of part by weight, silane coupler 100 Part, by volume 1：The silane coupler and ethanol are mixed to get mixed solution by 5, then using high-speed mixer 480 Rev/min rotating speed under, the mixed solution and the calcium carbonate are mixed 5 minutes, with after being dried 5 hours at 80 DEG C.
2. a kind of preparation method of modified SBS composite as claimed in claim 1, it is characterised in that by the SBS, gather Styrene, modified calcium carbonate, fluorescent material, polyvinyl chloride, alumina powder and fire retardant are placed in parallel dual-screw extruding machine Extrusion obtains modified SBS composite semi-finished products, and cooling granulation obtains modified SBS composite particles, and the modified SBS is combined Particle is dried 3 hours at 70 DEG C, is reused injection machine and is molded by standard batten, produces the modified SBS composite.
3. the preparation method of modified SBS composite as claimed in claim 2, it is characterised in that the parallel dual-screw is squeezed Go out feeding section, compression section, melt zone, metering section, head section, changeover portion that machine includes setting gradually along material conveying direction and Mouth mold section；
Wherein, the temperature of the feeding section is 170-190 DEG C, and the temperature of the compression section is 180-200 DEG C, the melt zone Temperature is 190-210 DEG C, and the temperature of the metering section is 200-210 DEG C, and the temperature of the head section is 190-210 DEG C, described The temperature of changeover portion is 190-210 DEG C, and the temperature of the mouth mold section is 190-210 DEG C.
4. the preparation method of modified SBS composite as claimed in claim 2, it is characterised in that the temperature of the injection machine For 200 DEG C -230 DEG C.
5. the preparation method of modified SBS composite as claimed in claim 2, it is characterised in that the parallel dual-screw is squeezed The screw speed for going out machine is 30 revs/min.
6. the preparation method of modified SBS composite as claimed in claim 2, it is characterised in that material is described in the same direction double It is half full state in screw extruder.
7. the preparation method of modified SBS composite as claimed in claim 2, it is characterised in that the parallel dual-screw is squeezed Head section, changeover portion and the mouth mold section outside for going out machine be arranged circumferentially a concentration equipment, and the parallel dual-screw extruding machine goes out The annular scraper of mouth connection one, the radius of the annular scraper is less than the radius of the modified SBS composite semi-finished products, by institute Strike off on the top layer for stating modified SBS composite semi-finished products.
CN201610920952.4A 2016-10-21 2016-10-21 Modified SBS composite and preparation method thereof Pending CN107033521A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109096573A (en) * 2018-06-27 2018-12-28 江苏诺贝尔塑业有限公司 A kind of PE double-wall pipe and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201552684U (en) * 2009-12-16 2010-08-18 南京金杉汽车工程塑料有限责任公司 Plastic modification product line
CN103059436A (en) * 2011-10-20 2013-04-24 天津市耀新科技发展有限公司 Polymer alloy material and preparation method thereof
CN203444844U (en) * 2013-08-10 2014-02-19 福建凤竹集团有限公司 Fluorescent wire capable of display aging condition at night

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN201552684U (en) * 2009-12-16 2010-08-18 南京金杉汽车工程塑料有限责任公司 Plastic modification product line
CN103059436A (en) * 2011-10-20 2013-04-24 天津市耀新科技发展有限公司 Polymer alloy material and preparation method thereof
CN203444844U (en) * 2013-08-10 2014-02-19 福建凤竹集团有限公司 Fluorescent wire capable of display aging condition at night

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109096573A (en) * 2018-06-27 2018-12-28 江苏诺贝尔塑业有限公司 A kind of PE double-wall pipe and preparation method thereof

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Application publication date: 20170811