CN103571105B - A kind of Environment-friendlypolyvinyl polyvinyl chloride resin composition and preparation method thereof - Google Patents
A kind of Environment-friendlypolyvinyl polyvinyl chloride resin composition and preparation method thereof Download PDFInfo
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- CN103571105B CN103571105B CN201310547351.XA CN201310547351A CN103571105B CN 103571105 B CN103571105 B CN 103571105B CN 201310547351 A CN201310547351 A CN 201310547351A CN 103571105 B CN103571105 B CN 103571105B
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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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- 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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- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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Abstract
The invention discloses a kind of Environment-friendlypolyvinyl polyvinyl chloride resin composition and preparation method thereof, be made up of according to respective weight following raw material: Corvic 80 100 parts, esters polymer 20 80 parts, heat stabilizer 15 parts, auxiliary heat stabilizer 1 10 parts.The Environment-friendlypolyvinyl polyvinyl chloride resin composition that the preparation method provided according to the present invention is obtained can significantly improve toughness and the fluidity of molten of Corvic.This poly (vinyl chloride) resin composition is environmentally friendly, excellent combination property, and its preparation method simply, easily realizes industrialization.
Description
Technical field
The present invention relates to technical field of polymer materials, particularly relate to a kind of environmental protection polyvinyl chloride resin
Compositions and preparation method thereof.
Background technology
Polrvinyl chloride, is called for short PVC, is by the thermoplastic resin of chloroethylene polymerization, vinyl chloride homo
The copolymer of thing and vinyl chloride is referred to as Corvic, i.e. polyvinyl chloride resin.PVC is to be only second to gather
Ethylene and occupy the resins for universal use of world wide production second, be widely used in tubing, bar, thin film,
The field such as insulant, construction material.But, polyvinyl chloride resin self there is also many defects and constrains it
Processing and forming and the application in some field:
(1) poor heat stability: pure PVC easily decomposes when melt-processed, causes variable color and performance
Deterioration.Accordingly, it would be desirable to addition stabilizer is to improve its heat stability, it is simultaneously introduced plasticizer to improve it
Fluidity of molten.Conventional plasticizers, such as phthalic ester plasticizer, tricresyl phosphate and inclined benzene
Three sour three monooctyl esters etc. have good plasticization effect.But these plasticizers easily occur to migrate and to ecological environment and
Health works the mischief.In recent years, epoxy soybean oil, adipic acid dibutyl ester, citrate etc. exist
The polyvinyl chloride resin course of processing is used to substitute or part replacement conventional plasticizers.Chinese invention patent
CN102453291A discloses a kind of property comprising adipic acid dibutyl ester/epoxy soybean oil composite elasticizer
Environment-friendly type PVC is material modified.This system plasticizer is little to harm, but consumption is big.
(2) poor toughness: polyvinyl chloride resin has notch sensitivity, its notch impact strength is about 3
KJ/m2, it is impossible to as structural material.Two kinds of methods, i.e. chemistry mainly there are is to increase the toughness reinforcing of PVC at present
Tough modification and physics toughening modifying.Chemical toughening modification is to change PVC tree by methods such as grafting, copolymerization
The molecular structure of fat, introduces soft segment in PVC molecule, plays toughening effect.Chemical modification due to
Complex process, equipment requirements are high, it is difficult to realize at polyvinyl chloride resin processed user end.Physics toughening modifying is
By being blended with toughener, improve its toughness.The preferable plasticized modifier of effect has ethylene-vinyl acetate
Ester, nitrile rubber, butadiene-styrene rubber, acrylonitrile-butadiene-styrene (ABS) elastomer, polyurethane, chlorination gather
Ethylene and styrene copolymer etc..Chinese invention patent CN102453291A discloses a kind of utilization
The compositions of superfines nitrile rubber toughening PVC；Public affairs in Chinese invention patent CN101948596A
Open a kind of compositions using Polyurethane Thermoplastic Elastomer and the common toughening PVC of anti-impact processing aid；
Chinese patent CN103059464A discloses a kind of employing plasticizer and phenylethylene thermoplastic elastomehc
The compositions of the common toughening PVC of gonosome；Chinese invention patent CN102850696A discloses one
Common containing chlorinated polyethylene resin, polyurethane, butadiene-styrene rubber, chlorinated polypropylene acid-butadiene-styrene
The high tenacity polychloroethylene pipes of the components such as polymers；Chinese invention patent CN102898752A uses
Powdered fluororubber, nanoscale auxiliary agent, the common toughening PVC of processing aid are prepared for a kind of high-performance PVC (polyvinyl chloride)
Tubing.At present in patent and report, PVC plasticized modifier is of a great variety, but mostly is petroleum base and can not
Biodegradable elastomer or elastomeric material.
(3) PVC poor in processability: typically require the substantial amounts of plasticizer of addition to improve its melt flows speed
Rate.
Polyvinyl chloride resin and conventional plasticizers and toughener thereof all originate from greatly oil and the most biodegradable, therefore
It produces and uses and ecological environment causes certain pollution and oil is had dependency.Additionally, PVC tree
There is migration problem, to human body in the little molecule plasticizer (such as phthalate) used in fat prod
And environmental danger, seriously constrain PVC answering at aspects such as some fields, such as toy for children
With.The most both at home and abroad about using bio-based and the research of biodegradable polyesters material modification polyvinyl chloride resin
Report is rarely had with technology.Therefore, use bio-based with biodegradable polyesters, PVC to be modified, keep away
Exempt to use or as far as possible few non-environment-friend auxiliaries with prepare eco-friendly polyvinyl chloride resin material have innovation with
Novelty.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of Environment-friendlypolyvinyl polyvinyl chloride resin composition and
Preparation method, to improve the toughness of polyvinyl chloride resin material, processing fluidity, biomass or biodegradable
Constituent content, avoids using a large amount of plasticizer simultaneously.
Based on above-mentioned purpose, a kind of Environment-friendlypolyvinyl polyvinyl chloride resin composition that the present invention provides, its feature
It is, by following raw material according to each becoming weight group: Corvic 80-100 part, esters
Polymer 20-80 part, heat stabilizer 1-5 part, auxiliary heat stabilizer 1-10 part.
Alternatively, described Corvic is SG0-SG9 type, preferably SG2-SG6 type.
Alternatively, described esters polymer selected from succinic acid-butanediol ester copolymer, tetramethylene adipate-
Mutual-phenenyl two acid bromide two alcohol ester's copolymer, succinic acid-butanediol ester-tetramethylene adipate copolymer, 3 hydroxyls
Base butyrate homopolymer, 3 butyric ester-3 hydroxyl pentanoate copolymers, 3 butyric ester-4 hydroxyls
At least one in butyrate copolymer and 3 butyric ester-3 hydroxyhexanoate copolymer.
Alternatively, at least one during described heat stabilizer is organic tin stabilizer and calcium zinc stabilizer.
It is preferred that described auxiliary heat stabilizer is epoxy soybean oil.
Present invention also offers a kind of method preparing described Environment-friendlypolyvinyl polyvinyl chloride resin composition, including
Following steps:
First Corvic, esters polymer, heat stabilizer and auxiliary heat stabilizer are existed according to proportioning
Pre-composition is obtained by homogenizer mix homogeneously under room temperature, then by above-mentioned pre-composition by rotor banburying
Machine melt blending, obtains described Environment-friendlypolyvinyl polyvinyl chloride resin composition.Wherein, melt blending temperature is
140-190 DEG C, the blended time is 2-20 minute, and closed-smelting machine rotor rotating speed is 20-100 rev/min.
Present invention also offers the another kind of method preparing described Environment-friendlypolyvinyl polyvinyl chloride resin composition, bag
Include following steps:
First Corvic, esters polymer, heat stabilizer and auxiliary heat stabilizer are existed according to proportioning
Obtain pre-composition by homogenizer mix homogeneously under room temperature, more above-mentioned pre-composition is passed through Screw Extrusion
Machine melt blending is extruded, and obtains described Environment-friendlypolyvinyl polyvinyl chloride resin composition.Wherein, screw extruder
Feeding section temperature is 30-80 DEG C, and remaining each section of temperature is 140-190 DEG C, and the screw rod of screw extruder turns
Speed is 80-500 rev/min, preferably 90-300 rev/min.
From the above it can be seen that the environment-friendly type polychlorostyrene obtained according to the preparation method of present invention offer
Acetate resin composition can significantly improve toughness and the fluidity of molten of polyvinyl chloride resin, has higher life
Thing base or biodegradable constituent content, avoid using a large amount of plasticizer simultaneously, can be directly used for extrusion,
Injection, mold pressing and calendering formation various environment-friendly type plastic material products.Its preparation method simply, easily realizes producing
Industry.Additionally, in described Environment-friendlypolyvinyl polyvinyl chloride resin composition or its preparation process add trace or
The functional aid that person is a small amount of, such as antioxidant, lubricant, coloring agent, inorganic filler, processing help
Agent, does not interferes with the basic mechanical performance of said composition.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with being embodied as
Example, the present invention is described in more detail.
Embodiment 1
By polrvinyl chloride (PVC-SG5, Group Co., Ltd of Xingjiang Tianye Co. product) 100 parts, 3 hydroxyl fourths
(4 hydroxybutyrate monomer molar content are 10% to acid esters-4 hydroxybutyric acid ester copolymer, Shenzhen Yi Keman
Products) 30 parts, methyl mercaptan tin heat stabilizer (NX-128, Nantong Ai Dewang Chemical Co., Ltd.
Product) 4 parts and epoxy soybean oil (Yueling City lucky star plastic additive factory product) 4 parts, at high-speed mixer
Middle mix homogeneously obtains pre-composition, this pre-composition is blended in Haake banbury 4min and obtains a kind of ring
Guarantor's type poly (vinyl chloride) resin composition.Wherein rotor speed be 50rpm, temperature be 160 DEG C.This is gathered
Vinyl chloride resin composition by vulcanizing press be pressed into sheet material for stretching and impact experiment, record this
The hot strength of Environment-friendlypolyvinyl polyvinyl chloride resin composition sheet material is 38MPa, and elongation at break is 250
%, notch impact strength is 4.5kJ/m2, melt index is 1.5g/10min.
Embodiment 2
By polrvinyl chloride (PVC-SG5, Group Co., Ltd of Xingjiang Tianye Co. product) 100 parts, 3 hydroxyl fourths
(4 hydroxybutyrate monomer molar content are 10% to acid esters-4 hydroxybutyric acid ester copolymer, Shenzhen Yi Keman
Products) 40 parts, calcium zinc heat stabilizer (CZ-7311, Huizhou Guang Xu plastics company limited product) 4
Part and epoxy soybean oil (Yueling City lucky star plastic additive factory product) 5 parts, mix in high-speed mixer
Uniformly obtain pre-composition, this pre-composition blended 5min in Haake banbury is obtained a kind of environment-friendly type and gathers
Vinyl chloride resin composition.Wherein rotor speed be 40rpm, temperature be 160 DEG C.By this polrvinyl chloride
Resin combination by vulcanizing press be pressed into sheet material for stretching and impact experiment, record this environment-friendly type
The hot strength of poly (vinyl chloride) resin composition sheet material is 45MPa, and elongation at break is 300%, breach
Impact strength is 8.5kJ/m2, melt index is 4.0g/10min.
Embodiment 3
By polrvinyl chloride (PVC-SG5, Group Co., Ltd of Xingjiang Tianye Co. product) 105 parts, 3 hydroxyl fourths
(4 hydroxybutyrate monomer molar content are 13% to acid esters-4 hydroxybutyric acid ester copolymer, Shenzhen Yi Keman
Products) 40 parts, calcium zinc heat stabilizer (CZ-7311, Huizhou Guang Xu plastics company limited product) 4
Part and epoxy soybean oil (Yueling City lucky star plastic additive factory product) 6 parts, mix in high-speed mixer
Uniformly obtain pre-composition, this pre-composition blended 3.5min in Haake banbury is obtained a kind of environment-friendly type and gathers
Vinyl chloride resin composition.Wherein rotor speed be 60rpm, temperature be 160 DEG C.By this polrvinyl chloride
Resin combination by vulcanizing press be pressed into sheet material for stretching and impact experiment, record this environment-friendly type
The hot strength of poly (vinyl chloride) resin composition sheet material is 37MPa, and elongation at break is 270%, breach
Impact strength is 8.0kJ/m2, melt index is 4.5g/10min.
Embodiment 4
By polrvinyl chloride (PVC-SG6, Group Co., Ltd of Xingjiang Tianye Co. product) 110 parts, 3 hydroxyls oneself
Acid ester monomer molar content is 3 butyric ester-3 hydroxyhexanoate copolymer (the Japan Kaneka of 7%
Products) 72 parts, calcium zinc heat stabilizer (CZ-7311, Huizhou Guang Xu plastics company limited product) 5
Part and epoxy soybean oil (Yueling City lucky star plastic additive factory product) 6 parts, mix in high-speed mixer
Uniformly obtain pre-composition, this pre-composition blended 5min in Haake banbury is obtained a kind of environment-friendly type and gathers
Vinyl chloride resin composition.Wherein rotor speed be 40rpm, temperature be 160 DEG C.By this polrvinyl chloride
Resin combination by vulcanizing press be pressed into sheet material for stretching and impact experiment, record this environment-friendly type
The hot strength of poly (vinyl chloride) resin composition sheet material is 36MPa, and elongation at break is 320%, breach
Impact strength is 13.5kJ/m2, melt index is 9.5g/10min.
Embodiment 5
By polrvinyl chloride (PVC-SG5, Group Co., Ltd of Xingjiang Tianye Co. product) 95 parts, adipic acid fourth
(PBAT, Hangzhou Xin Fu Pharmaceutical limited company produces diol ester-mutual-phenenyl two acid bromide two alcohol ester's copolymer
Product) 30 parts, calcium zinc heat stabilizer (CZ-7311, Huizhou Guang Xu plastics company limited product) 3 parts and ring
Oxygen soybean oil (Yueling City lucky star plastic additive factory product) 6 parts, in high-speed mixer, mix homogeneously obtains
To pre-composition, this pre-composition is melt extruded by double screw extruder, obtain a kind of environment-friendly type polychlorostyrene second
Olefine resin compositions, wherein extruder from feeding section to the temperature of mouth die section be respectively 30 DEG C, 140
DEG C, 145 DEG C, 155 DEG C and 165 DEG C, screw speed is 150rpm.By this Corvic group
Compound by vulcanizing press be pressed into sheet material for stretching and impact experiment, record this environment-friendly type polychlorostyrene second
The hot strength of olefine resin compositions sheet material is 40MPa, and elongation at break is 250%, and notch shock is strong
Degree is 7.5kJ/m2, melt index is 2.0g/10min.
Embodiment 6
By polrvinyl chloride (PVC-SG4, Group Co., Ltd of Xingjiang Tianye Co. product) 90 parts, succinic acid fourth
(EnPol G4460, Li Lai KCC of Korea S produces diol ester-tetramethylene adipate copolymer
Product) 30 parts, methyl mercaptan tin heat stabilizer (NX-128, Nantong Ai Dewang Chemical Co., Ltd. product)
3.5 parts and epoxy soybean oil (Yueling City lucky star plastic additive factory product) 5 parts, mixed in high-speed mixer
Close and uniformly obtain pre-composition, this pre-composition is melt extruded by double screw extruder, obtain a kind of environmental protection
Type poly (vinyl chloride) resin composition, wherein extruder is respectively 30 from feeding section to the temperature of mouth die section
DEG C, 145 DEG C, 150 DEG C, 155 DEG C and 165 DEG C, screw speed is 120rpm.By this polychlorostyrene second
Olefine resin compositions by vulcanizing press be pressed into sheet material for stretching and impact experiment, record this environmental protection
The hot strength of type poly (vinyl chloride) resin composition sheet material is 42MPa, and elongation at break is 250%, lacks
Mouth impact strength is 7.0kJ/m2, melt index is 4.0g/10min.
Embodiment 7
By polrvinyl chloride (PVC-SG6, Group Co., Ltd of Xingjiang Tianye Co. product) 100 parts, 3 hydroxyl fourths
Acid ester homopolymer (PHB, Ningbo Tianan Biological Material Co., Ltd.'s product) 10 parts, 3 butyric esters-
(4 hydroxybutyrate monomer molar content are 15% to 4 hydroxybutyric acid ester copolymers, and Shenzhen Yi Ke Man produces
Product) 30 parts, methyl mercaptan tin heat stabilizer (NX-128, Nantong Ai Dewang Chemical Co., Ltd. product)
3 parts and epoxy soybean oil (Yueling City lucky star plastic additive factory product) 6 parts, mix in high-speed mixer
Uniformly obtain pre-composition, this pre-composition is melt extruded by single screw extrusion machine, obtain a kind of environment-friendly type
Poly (vinyl chloride) resin composition, wherein extruder from feeding section to the temperature of mouth die section be respectively 30 DEG C,
145 DEG C, 150 DEG C, 155 DEG C and 165 DEG C, screw speed is 120rpm.By this polrvinyl chloride tree
Oil/fat composition by vulcanizing press be pressed into sheet material for stretching and impact experiment, record this environment-friendly type gather
The hot strength of vinyl chloride resin composition sheet material is 37MPa, and elongation at break is 280%, and breach rushes
Hit intensity is 5.5kJ/m2, melt index is 6.0g/10min.
Comparative example 1
By polrvinyl chloride (PVC-SG5, Group Co., Ltd of Xingjiang Tianye Co. product) 100 parts, calcium zinc heat
Stabilizer (CZ-7311, Huizhou Guang Xu plastics company limited product) 4 parts and epoxy soybean oil (Yueling City
Lucky star plastic additive factory product) 5 parts, in high-speed mixer, mix homogeneously obtains pre-composition, and this is pre-
Mixed thing is blended 5min in Haake banbury and obtains a kind of Environment-friendlypolyvinyl polyvinyl chloride resin composition.Wherein
Rotor speed is 40rpm, temperature is 160 DEG C.This poly (vinyl chloride) resin composition is passed through compression molding
Machine be pressed into sheet material for stretching and impact experiment, record this Environment-friendlypolyvinyl polyvinyl chloride resin composition sheet material
Hot strength be 41MPa, elongation at break is 70%, and notch impact strength is 2.0kJ/m2, molten
Melting index is 0.5g/10min.
Comparative example 2
By polrvinyl chloride (PVC-SG5, Group Co., Ltd of Xingjiang Tianye Co. product) 100 parts, adjacent benzene two
Formic acid dioctyl ester (DOP, Chemical Reagent Co., Ltd., Sinopharm Group's product) 30 parts, calcium zinc heat stabilizer
(CZ-7311, Huizhou Guang Xu plastics company limited product) 4 parts (Yueling City lucky star is moulded with epoxy soybean oil
Material auxiliary reagent factory product) 5 parts, in high-speed mixer, mix homogeneously obtains pre-composition, is existed by this pre-composition
5min is blended in Haake banbury and obtains a kind of Environment-friendlypolyvinyl polyvinyl chloride resin composition.Its rotor turns
Speed is 160 DEG C for 40rpm, temperature.This poly (vinyl chloride) resin composition is suppressed by vulcanizing press
Becoming sheet material for stretching experiment, the hot strength recording this Environment-friendlypolyvinyl polyvinyl chloride resin composition sheet material is
21MPa, elongation at break is 230%, and melt index is 2.0g/10min.Due to this polrvinyl chloride tree
Oil/fat composition plasticizer loading is high, and matter is soft should not carry out notch shock experiment.
It should be noted that the method bag of prepared Environment-friendlypolyvinyl polyvinyl chloride resin composition compacting sheet material
Include: first prepared Environment-friendlypolyvinyl polyvinyl chloride resin composition is put into mould and on vulcanizing press
Hot pressing (hot pressing temperature 160 DEG C, hot pressing time 4min, hot pressing pressure 10MPa) is colded pressing and (is colded pressing
Time 5min, cold pressing pressure 10MPa), make the sheet material that thickness is 1mm and 4mm, use respectively
In stretching and impact experiment.
Number described in embodiment is weight fraction；Before polrvinyl chloride used and esters polymer use
It is vacuum dried 8 hours at 60 DEG C；The hot strength of described Environment-friendlypolyvinyl polyvinyl chloride resin composition and stretching
Long rate uses Shenzhen Kai Qiangli Machinery Co., Ltd. WDT-10 cupping machine according to GB/T1040-2006
Standard records, and rate of extension is 10mm/min；Notch impact strength uses Jiangdu jewel test machines
The MZ-2056 shock machine of factory is tested according to ASTM D256；Melt index uses Chengde gold to build inspection
The XNR-400B fusion index instrument surveying Instrument Ltd. records according to GB/T3682-2000 standard, surveys
Strip part is 190 DEG C × 5.00kg.
The Environment-friendlypolyvinyl polyvinyl chloride resin composition obtained in embodiment 1-7 have intensity height, good toughness,
The features such as environmental friendliness.The polychlorostyrene second obtained in the comparative example 1 modified with being provided without esters polymer
Olefine resin compositions is compared, and the Environment-friendlypolyvinyl polyvinyl chloride resin composition obtained in embodiment 1-7 is not only composed
Give Corvic material bio-based or biodegradable new features, and significantly improve its fracture
Percentage elongation, notch impact strength and melt index.With the comparative example using dioctyl phthalate
The poly (vinyl chloride) resin composition obtained in 2 is compared, the environmental protection polyvinyl chloride tree obtained in embodiment 1-7
Oil/fat composition is avoided using the little molecule plasticizer harmful with human body to environment, and can improve polychlorostyrene second
The processing fluidity of olefine resin, significantly improves its hot strength and elongation at break simultaneously.Visible, according to
The Environment-friendlypolyvinyl polyvinyl chloride resin composition that the preparation method that the present invention provides is obtained is not only to environment friend
Good, also significantly improve mechanical performance and the melt processability of poly (vinyl chloride) resin composition.
The present invention easily degrades during utilizing bio-based and biodegradable esters polymer melt-processed
This characteristic carries out comprehensive modification to polyvinyl chloride resin, becomes fraud into profit.Biodegradable polyesters moderate-heat is degraded
Rear molecular weight distribution broadens, and the relatively low part of its middle-molecular-weihydroxyethyl produces plasticising to polyvinyl chloride resin, and molecular weight is relatively
High part then has toughness reinforcing effect to polyvinyl chloride resin, hence with bio-based and biodegradable high score
The Environment-friendlypolyvinyl polyvinyl chloride resin composition that sub-modification obtains has the most excellent mechanical performance and melt adds
Work performance, such as excellent intensity, toughness and fluidity of molten.And, the glass of described esters polymer
Glass transition temperature is below room temperature, good with the polyvinyl chloride resin compatibility, therefore, and described environment-friendly type polychlorostyrene
The structure of acetate resin composition is fine and smooth, easily controllable.Additionally, trace or a small amount of functional aid,
The basic of this Environment-friendlypolyvinyl polyvinyl chloride resin composition is not interfered with such as antioxidant, coloring agent, plasticizer etc.
Performance.
As can be seen here, Polyhydroxyalkanoatecomposite composite material that the present invention provides and preparation method thereof has following
Feature:
(1) environmental protection type polyvinyl chloride composition prepared by the method provided by the present invention has the machine of excellence
Tool performance, such as hot strength height, elongation at break is high, impact flexibility is good.
(2) Environment-friendlypolyvinyl polyvinyl chloride resin composition that the present invention provides can avoid making of non-environment-friendly plasticizer
With, add biomass and the content of biodegradable component in Corvic material, be conducive to slow
Many problems that solution energy scarcity and white pollution bring.
(3) present invention uses esters polymer to significantly improve the melt index of PVC resin composition,
Improve the melt flowability of PVC resin composition.
(4) the preparation method technique of the Environment-friendlypolyvinyl polyvinyl chloride resin composition that the present invention provides is simple, raw
The product cycle is short, can implement on existing polyvinyl chloride resin process equipment, it is easy to accomplish industrialization.
(5) Environment-friendlypolyvinyl polyvinyl chloride resin composition that the present invention provides is of many uses, can be used for extruding,
Injection, mold and the various goods of molding such as calendering.
Those of ordinary skill in the field are it is understood that the foregoing is only the specific embodiment of the present invention
And oneself, be not limited to the present invention, all within the spirit and principles in the present invention, that is done any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (3)
1. an Environment-friendlypolyvinyl polyvinyl chloride resin composition, it is characterised in that by following raw material according to each
Weight forms: SG0-SG9 type Corvic 80-100 part, bio-based and biodegradable
Esters polymer 20-80 part, heat stabilizer 1-5 part, epoxy soybean oil 1-10 part；
Wherein said bio-based and biodegradable esters polymer are 3-hydroxybutyrate ester homopolymer, 3-hydroxyl
Base butyrate-3-hydroxyl pentanoate copolymer, 3-hydroxybutyrate ester-4 hydroxybutyric acid ester copolymer and 3-hydroxyl
At least one in butyrate-3-hydroxyhexanoate copolymer, described heat stabilizer is organic tin stabilizer
With at least one in calcium zinc stabilizer.
2. the method preparing Environment-friendlypolyvinyl polyvinyl chloride resin composition according to claim 1,
It is characterized in that, said method comprising the steps of:
First by Corvic, bio-based and biodegradable esters polymer, heat stabilizer and epoxy
Soybean oil at room temperature obtains pre-composition by homogenizer mix homogeneously according to proportioning, then by above-mentioned pre-
Mixed thing, by rotor banbury melt blending at 140 DEG C-160 DEG C, obtains described environmental protection polyvinyl chloride
Resin combination.
3. the method preparing Environment-friendlypolyvinyl polyvinyl chloride resin composition according to claim 1,
It is characterized in that, said method comprising the steps of:
First by Corvic, bio-based and biodegradable esters polymer, heat stabilizer and epoxy
Soybean oil at room temperature obtains pre-composition by homogenizer mix homogeneously according to proportioning, then by above-mentioned pre-
Mixed thing is extruded by screw extruder melt blending, obtains described Environment-friendlypolyvinyl polyvinyl chloride resin composition.
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| CN104755538B (en) | 2012-08-17 | 2018-08-31 | Cj 第一制糖株式会社 | Bio-rubber modifying agent for blend polymer |
| EP3004225A1 (en) | 2013-05-30 | 2016-04-13 | Metabolix, Inc. | Recyclate blends |
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| EP3122817B1 (en) * | 2014-03-27 | 2020-07-29 | CJ CheilJedang Corporation | Highly filled polymer systems |
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