CN104098840A - Overweight functional master batch, plastic product based on master batch and method for preparing plastic product through rotary molding - Google Patents
Overweight functional master batch, plastic product based on master batch and method for preparing plastic product through rotary molding Download PDFInfo
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- CN104098840A CN104098840A CN201410359245.3A CN201410359245A CN104098840A CN 104098840 A CN104098840 A CN 104098840A CN 201410359245 A CN201410359245 A CN 201410359245A CN 104098840 A CN104098840 A CN 104098840A
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- 239000004594 Masterbatch (MB) Substances 0.000 title claims abstract description 105
- 239000004033 plastic Substances 0.000 title claims abstract description 84
- 229920003023 plastic Polymers 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000000465 moulding Methods 0.000 title abstract 2
- 239000011159 matrix material Substances 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical group [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims abstract description 5
- 239000010445 mica Substances 0.000 claims abstract description 5
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 26
- 239000007858 starting material Substances 0.000 claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 239000003112 inhibitor Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000004164 Wax ester Substances 0.000 claims description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 229920006222 acrylic ester polymer Polymers 0.000 claims description 3
- 239000006258 conductive agent Substances 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 235000019386 wax ester Nutrition 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000012760 heat stabilizer Substances 0.000 abstract 1
- 238000001175 rotational moulding Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 101100017747 Arabidopsis thaliana HRD3A gene Chemical group 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 2
- 235000019241 carbon black Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 24 parts Chemical group 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- 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)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses an overweight functional master batch which is prepared from 20-70 parts of resin, 10-50 parts of filler, 5-20 parts of viscosity adjusting aid, 5-50 parts of functional aid, 0.1-1 part of processing heat stabilizer and 0.1-2 parts of processing lubricant, wherein: the resin is PP, ABS or PA, the filler is barium sulfate, calcium carbonate, kaolin, mica or talcum powder; the invention also discloses a plastic product prepared from 40-60 parts of matrix plastic and 40-60 parts of overweight functional master batch; the invention also discloses a method for preparing the plastic product by mixing and heating the matrix plastic and the functional master batch to a certain temperature and then carrying out rotational molding. The invention heats the matrix plastic and the functional master batch to a certain temperature and then carries out rotary molding, and the high-density functional master batch moves to the outer layer under the action of centrifugal force, thereby realizing the selective distribution of the functional auxiliary agent, reducing the consumption of the functional auxiliary agent and improving the performance of the product.
Description
Technical field
The invention belongs to organic polymer material field, relate to a kind of functional plastics, particularly the method for these plastics is prepared in overweight functional master batch, the plastics based on this masterbatch and rotoforming.
Background technology
The resin of chemosynthesis is subject to the restriction of self performance, its intensity, stability, workability, functionally manyly can not meet service requirements, can not be directly used in production plastics, generally adopts at present the mode of adding filler or functional agent to promote its performance.In conventional injection molding technology gained plastics, various interpolation auxiliary agents are dispersed in matrix, the plastics (as fire-retardant, antistatic, conduction, wear-resisting, weather-proof, heat conduction, luminous or corrosion resistance nature) in order to obtain with certain function, must in matrix, add a large amount of functional agents, but generally, we only need to these plastics a certain position (as top layer or core) there is specific function, this has just caused the significant wastage of functional agent.
Masterbatch refers in plastics forming process, and by a large amount of auxiliary agents, filler and a small amount of mixing prepared pellet of vector resin, in masterbatch, the content of auxiliary agent, filler is often than high several times to tens times in actual plastics.Masterbatch is one of main form of world today's additives for plastics application, it is simple that it has technique, easy to use, be convenient to realize the production automation, raise labour productivity, avoid again the advantage of environmental pollution, if but add masterbatch too much, not only cause that cost rises, and cause difficulty of processing to rise, material property declines.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of overweight functional master batch, the plastics based on this masterbatch and rotoforming to prepare the method for these plastics.
For achieving the above object, the invention provides following technical scheme:
An overweight functional master batch, composed of the following components by mass:
Wherein: resin is PP, ABS or PA, filler is barium sulfate, calcium carbonate, kaolin, mica or talcum powder.
As the overweight functional master batch of the present invention preferably, described viscosity adjustment auxiliary agent is ethylene bis stearamide or hot melt acrylic ester polymer.
Another kind as the overweight functional master batch of the present invention is preferred, and described functional agent is one or more in fire retardant, static inhibitor, conductive agent, anti-wear agent, weather resisting agent, thermal conducting agent, luminous agent, corrosion-resistant agent, antiseptic-germicide.
As the overweight functional master batch of the present invention further preferably, described processing thermo-stabilizer is antioxidant 1010 or irgasfos 168, described lubricant is oxidized polyethlene wax, wax ester or polyvalent alcohol wax.
Plastics based on described overweight functional master batch, composed of the following components by mass:
Matrix plastic 40-60 part;
Overweight functional master batch 40-60 part;
Wherein, matrix plastic is PE, ABS.
The method of plastics is as claimed in claim 5 prepared in rotoforming, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
D), high speed rotating mould die cavity, overweight functional master batch moves to plastics top layer under the effect of centrifugal force;
E), cooling curing obtains product.
As rotoforming of the present invention prepare plastics method preferably, step c) to control Heating temperature during heating be 160 ℃-230 ℃.
While the another kind of preferred steps d for preparing plastics method as rotoforming of the present invention) rotating, controlling speed of rotation is 5-200r/min.
As rotoforming of the present invention, prepare plastics method further preferably, step e) adopt pressurize mode cooling curing during cooling curing.
First the present invention improves masterbatch, add wherein thermo-stabilizer, lubricant, functional agent, viscosity adjustment auxiliary agent and empty barium sulfate, calcium carbonate, kaolin, mica or talcum powder, it is large that masterbatch after improving has density, Heat stability is good, surface lubrication is good, the advantage that viscosity is low, is applicable to rotoforming and prepares special plastic.
The method that the present invention prepares plastics has the following advantages:
1, plastics of the present invention, kind and the proportioning of matrix plastic and functional master batch are suitable, and both physics and chemistry consistencies are good, and adhesion property is low, and the fusing point temperature difference is suitable;
2, the present invention is rotated being positioned at the compound of mould after matrix plastic and functional master batch are heated to certain temperature, because matrix plastic is now in molten state, functional master batch is in semi-melting state, the density of functional master batch is larger, and the adhesive power of matrix plastic and functional materials is less, functional master batch moves to plastics top layer under the effect of centrifugal force, thereby has realized the selective distribution of functional agent.The plastics that adopt the inventive method to make, most functional agents are distributed in the skin of goods, can reduce the consumption of functional agent and improve product properties, thereby realizing the object of saving auxiliary agent, reducing costs, promoting material or product properties.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:
Fig. 1 is that plastics method schematic diagram is prepared in plastics rotoforming of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, in following embodiment, all umbers are mass parts.
Following embodiment will disclose a kind of overweight functional master batch, and this functional master batch is comprised of following component by mass:
Wherein: resin is PP, ABS or PA, filler is barium sulfate, calcium carbonate, kaolin, mica or talcum powder.
Especially, described viscosity adjustment auxiliary agent is ethylene bis stearamide or hot melt acrylic ester polymer.
Especially, described functional agent is one or more in fire retardant, static inhibitor, conductive agent, anti-wear agent, weather resisting agent, thermal conducting agent, luminous agent, corrosion-resistant agent, antiseptic-germicide.
Especially, described processing thermo-stabilizer is antioxidant 1010 or irgasfos 168, and described lubricant is oxidized polyethlene wax, wax ester or polyvalent alcohol wax.
Following examples also will disclose a kind of plastics based on described overweight functional master batch, and these plastics are composed of the following components by mass: matrix plastic: 40-60 part; Overweight functional master batch: 40-60 part; Wherein, matrix plastic is PE, ABS.
Embodiment 1:
The method of the plastics of rotoforming preparation of the present invention based on overweight functional master batch, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
The selected overweight functional master batch starting material of the present embodiment and proportioning are: 40 parts of PP resins, 30 parts, barium sulfate, 24 parts, graphite, EBS5 part, 0.5 part, oxidation inhibitor, 0.5 part, polyvalent alcohol wax; The method for making that the present embodiment is prepared this overweight functional master batch is as follows: PP resin, BaSO4, graphite, EBS, oxidation inhibitor and polyvalent alcohol wax are mixed through high-speed mixer, melting, blend, extrude, check rod, water-cooled, pelletizing, oven dry, obtain overweight wear-resisting masterbatch;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
The selected body material of the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
The present embodiment Heating temperature is 165 ℃;
D), high speed rotating mould die cavity;
In the present embodiment, controlling rotation rotating speed is 50r/min;
E), pressurize cooling curing obtains overweight wear-resistant plastic goods.
Embodiment 2:
The method of the plastics of rotoforming preparation of the present invention based on overweight functional master batch, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
The selected overweight functional master batch starting material of the present embodiment and proportioning are: 50 parts of PP resins, BaSO
420 parts, 24 parts, graphite, EBS5 part, 0.5 part, oxidation inhibitor, 0.5 part, polyvalent alcohol wax;
The method for making that the present embodiment is prepared this overweight functional master batch is identical with embodiment 1;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
The selected body material of the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
The present embodiment Heating temperature is 165 ℃;
D), high speed rotating mould die cavity;
In the present embodiment, controlling rotation rotating speed is 50r/min;
E), pressurize cooling curing obtains overweight wear-resistant plastic goods.
Embodiment 3:
The method of the plastics of rotoforming preparation of the present invention based on overweight functional master batch, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
The selected overweight functional master batch starting material of the present embodiment and proportioning are: 45 parts of PP resins, BaSO
420 parts, 29 parts of graphitized carbon blacks, EBS5 part, 0.5 part, oxidation inhibitor, 0.5 part, polyvalent alcohol wax;
The method for making that the present embodiment is prepared this overweight functional master batch is identical with embodiment 1;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
The selected body material of the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
The present embodiment Heating temperature is 165 ℃;
D), high speed rotating mould die cavity;
In the present embodiment, controlling rotation rotating speed is 50r/min;
E), pressurize cooling curing obtains overweight conductive plastic object.
Embodiment 4:
The method of the plastics of rotoforming preparation of the present invention based on overweight functional master batch, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
The selected overweight functional master batch starting material of the present embodiment and proportioning are: 54 parts of PP resins, BaSO
420 parts, 20 parts of graphitized carbon blacks, EBS5 part, 0.5 part, oxidation inhibitor, 0.5 part, polyvalent alcohol wax;
The method for making that the present embodiment is prepared this overweight functional master batch is identical with embodiment 1;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
The selected body material of the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
The present embodiment Heating temperature is 165 ℃;
D), high speed rotating mould die cavity;
In the present embodiment, controlling rotation rotating speed is 50r/min;
E), pressurize cooling curing obtains overweight conductive plastic object.
Embodiment 5:
The method of the plastics of rotoforming preparation of the present invention based on overweight functional master batch, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
The selected overweight functional master batch starting material of the present embodiment and proportioning are: 64 parts of PP resins, BaSO
420 parts, 10 parts of weather-proof auxiliary agents, EBS5 part, 0.5 part, oxidation inhibitor, 0.5 part, polyvalent alcohol wax;
The method for making that the present embodiment is prepared this overweight functional master batch is identical with embodiment 1;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
The selected body material of the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
The present embodiment Heating temperature is 165 ℃;
D), high speed rotating mould die cavity;
In the present embodiment, controlling rotation rotating speed is 50r/min;
E), pressurize cooling curing obtains overweight weather-proof plastics.
Embodiment 6:
The method of the plastics of rotoforming preparation of the present invention based on overweight functional master batch, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
The selected overweight functional master batch starting material of the present embodiment and proportioning are: 68 parts of PP resins, BaSO
420 parts, 6 parts of weather-proof auxiliary agents, EBS5 part, 0.5 part, oxidation inhibitor, 0.5 part, polyvalent alcohol wax;
The method for making that the present embodiment is prepared this overweight functional master batch is identical with embodiment 1;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
The selected body material of the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
The present embodiment Heating temperature is 165 ℃;
D), high speed rotating mould die cavity;
In the present embodiment, controlling rotation rotating speed is 50r/min;
E), pressurize cooling curing obtains overweight weather-proof plastics.
Fig. 1 is the plastics method schematic diagram of plastics rotoforming preparation of the present invention based on overweight functional master batch, in figure, 1 is functional master batch, 2 is body material, and 3 is turning axle, and 4 is rotating mechanism, as shown in Figure 1, for applying when rotation, functional master batch and dispersed at body material, and after applying rotation, the larger body material of density is moved to outside in the effect of centrifugal force, and the less functional master batch of density is stayed inside, thereby realized the selective distribution of functional agent.
Get the prepared product of embodiment 1-6 and test, result is as shown in table 1-3:
Table 1 embodiment 1,2 product performance tests
| Test event | Standard | Embodiment 1 | Embodiment 2 |
| Tensile strength (MPa) | ISO527-2 | 19 | 17 |
| Elongation at break (%) | ISO527-2 | 230 | 310 |
| Notched Izod impact strength (KJ/m2) | ISO180 | 19 | 22 |
| Frictional coefficient | ISO8295 | 0.08 | 0.12 |
| Melt flow rate (MFR) (g/10min) | ISO1133 | 12 | 14 |
Table 2 embodiment 3,4 product performance tests
Table 3 embodiment 5,6 product performance tests
| Test event | Standard | Embodiment 5 | Embodiment 6 |
| Tensile strength (MPa) | ISO527-2 | 18 | 16 |
| Elongation at break (%) | ISO527-2 | 200 | 270 |
| Notched Izod impact strength (KJ/m2) | ISO180 | 15 | 19 |
| Melt flow rate (MFR) (g/10min) | ISO1133 | 13 | 18 |
| Xenon lamp aging (h) | GB7174 | 600 | 400 |
From table, 1-3 can find out, the plastics that rotoforming of the present invention makes, when meeting various functional requirements, have also kept the original performance of resin body preferably, can meet corresponding service requirements.
It should be noted that, in above-described embodiment, step b) selected body material and functional master batch mass ratio are: 0.8-1.25, step c) Heating temperature is 160 ℃-230 ℃, steps d) speed of rotation all can obtain the plastics that meet the demands while being 5-200r/min.
Finally explanation is, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can to it, make various changes in the form and details, and not depart from the claims in the present invention book limited range.
Claims (8)
1. overweight functional master batch, is characterized in that, described functional master batch is comprised of following component by mass:
Wherein: resin is PP, ABS or PA, filler is barium sulfate, calcium carbonate, kaolin, mica or talcum powder.
2. overweight functional master batch according to claim 1, is characterized in that: described viscosity adjustment auxiliary agent is ethylene bis stearamide or hot melt acrylic ester polymer.
3. overweight functional master batch according to claim 1, is characterized in that: described functional agent is one or more in fire retardant, static inhibitor, conductive agent, anti-wear agent, weather resisting agent, thermal conducting agent, luminous agent, corrosion-resistant agent, antiseptic-germicide.
4. overweight functional master batch according to claim 1, is characterized in that: described processing thermo-stabilizer is antioxidant 1010 or irgasfos 168, and described lubricant is oxidized polyethlene wax, wax ester or polyvalent alcohol wax.
5. the plastics based on overweight functional master batch described in claim 1-4 any one, is characterized in that, described plastics are composed of the following components by mass:
Matrix plastic 40-60 part;
Overweight functional master batch 40-60 part;
Wherein, matrix plastic is PE, ABS.
6. the method for plastics is as claimed in claim 5 prepared in rotoforming, it is characterized in that, comprises the following steps:
A), by proportioning, select overweight functional master batch starting material and prepare overweight functional master batch;
B), according to described proportioning, select matrix plastic and overweight functional master batch;
C), by step b) selected starting material are placed in mold cavity heating, control Heating temperature, make matrix plastic in molten state, overweight functional master batch is in semi-melting state;
D), high speed rotating mould die cavity, overweight functional master batch moves to plastics top layer under the effect of centrifugal force;
E), cooling curing obtains product.
7. the method for plastics is prepared in rotoforming according to claim 6, it is characterized in that: step c) controlling Heating temperature during heating is 160 ℃-230 ℃.
8. the method for plastics is prepared in rotoforming according to claim 6, it is characterized in that: steps d) controlling speed of rotation during rotation is 5-200r/min.
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