CN104098840B - The method that this plastic is prepared in overweight functional master batch, plastic and rotational forming based on this masterbatch - Google Patents
The method that this plastic is prepared in overweight functional master batch, plastic and rotational forming based on this masterbatch Download PDFInfo
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- CN104098840B CN104098840B CN201410359245.3A CN201410359245A CN104098840B CN 104098840 B CN104098840 B CN 104098840B CN 201410359245 A CN201410359245 A CN 201410359245A CN 104098840 B CN104098840 B CN 104098840B
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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
- 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
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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
- 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
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- 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
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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
- 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
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- 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
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- 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
Abstract
The invention discloses a kind of overweight functional master batch, by 20��70 parts of resins, 10��50 parts of fillers, 5��20 parts of viscosity adjustment auxiliary agents, 5��50 parts of function additives, 0.1��1 part of processing heat stabilizer, 0.1��2 part of lubricant is made, wherein: resin is PP, ABS or PA, filler is barium sulfate, calcium carbonate, Kaolin, Muscovitum or Pulvis Talci; The invention also discloses the plastic prepared by 40-60 part matrix plastic and the overweight functional master batch of 40-60 part; The invention also discloses the method that after matrix plastic and functional master batch are mixed and heated to uniform temperature, described plastic is prepared in rotational forming. The present invention carries out rotational forming after matrix plastic and functional master batch are heated to uniform temperature, high density functional master batch outer layers under the influence of centrifugal force is moved, it is achieved thereby that the selective distribution of function additive, it is possible to reduce the consumption of function additive also improves product properties.
Description
Technical field
The invention belongs to high-molecular organic material field, relate to a kind of functional plastics, the method that this plastic is prepared in plastic and the rotational forming particularly to overweight functional master batch, based on this masterbatch.
Background technology
The resin of chemosynthesis by the restriction of self performance, its intensity, stability, machinability, functional many can not meet instructions for use, it is impossible to being directly used in production plastic, the mode of current commonly used interpolation filler or function additive is to promote its performance. In conventional injection molding technology gained plastic, various interpolation auxiliary agents are dispersed in matrix, in order to obtain the plastic (such as fire-retardant, antistatic, conduction, wear-resisting, weather-proof, heat conduction, luminescence or decay resistance) with certain function, substantial amounts of function additive must be added in matrix, but under normal circumstances, we have only to a certain position (such as top layer or core) of this plastic and have specific function, and this has resulted in the significant wastage of function additive.
Masterbatch refers in plastics forming process, by mixing to a large amount of auxiliary agents, filler and a small amount of vector resin obtained pellet, auxiliary agent in masterbatch, filler content often than several times high in actual plastic to tens times. Masterbatch is one of main form of world today's plastic additive application, it is simple that it has technique, easy to use, facilitate implementation the production automation, raise labour productivity, the advantage avoiding again environmental pollution, if but it is too much to add masterbatch, not only causing cost increase, and cause that difficulty of processing rises, material property declines.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of overweight functional master batch, method that this plastic is prepared in plastic and the rotational forming based on this masterbatch.
For reaching above-mentioned purpose, the present invention provides following technical scheme:
A kind of 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, Muscovitum or Pulvis Talci.
Preferred as the overweight functional master batch of the present invention, described viscosity adjustment auxiliary agent is ethylene bis stearamide or melt acrylic ester polymer.
Another kind as the overweight functional master batch of the present invention is preferred, and described function additive is one or more in fire retardant, antistatic additive, conductive agent, anti-wear agent, weather resisting agent, thermal conducting agent, luminous agent, corrosion-resistant agent, antibacterial.
As the overweight functional master batch of the present invention it is preferred that, described processing heat stabilizer is antioxidant 1010 or irgasfos 168, and described lubricant is OPE, wax ester or polyhydric alcohol wax.
Based on the plastic of 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 plastic as claimed in claim 5 is prepared in rotational forming, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
D), high speed rotating mould die cavity, overweight functional master batch moves to plastic top layer under the influence of centrifugal force;
E), cooling curing obtains product.
Preparing the preferred of plastic method as rotational forming of the present invention, controlling heating-up temperature when step c) heats is 160 DEG C-230 DEG C.
Prepare as rotational forming of the present invention that to control rotary speed when the another kind of preferred steps d) of plastic method rotates be 5-200r/min.
Prepare as rotational forming of the present invention plastic method it is preferred that, during step e) cooling curing adopt pressurize mode cooling curing.
First masterbatch has been improved by the present invention, it is added thereto to heat stabilizer, lubricant, function additive, viscosity adjustment auxiliary agent and empty barium sulfate, calcium carbonate, Kaolin, Muscovitum or Pulvis Talci, it is big that masterbatch after improving has density, Heat stability is good, surface lubrication is good, the advantage that viscosity is low, it is adaptable to special plastic is prepared in rotational forming.
The present invention prepares the method for plastic and has the advantage that
1, the kind of the plastic of the present invention, matrix plastic and functional master batch and proportioning are suitable for, and both physics and chemistry compatibilitys are good, and adhesion property is low, and the fusing point temperature difference is suitable;
2, the compound that the present invention is pointed in mould after matrix plastic and functional master batch are heated to uniform temperature rotates, owing to now matrix plastic is in molten condition, functional master batch is in semi-molten state, the density of functional master batch is bigger, and matrix plastic is less with the adhesion of functional material, functional master batch moves to plastic top layer under the influence of centrifugal force, it is achieved thereby that the selective distribution of function additive. Adopting the plastic that the inventive method prepares, most function additives are distributed in the outer layer of goods, it is possible to reduce the consumption of function additive also improves product properties, thus realizing saving auxiliary agent, reducing cost, promoting the purpose of material or product properties.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearly, the present invention provides drawings described below to illustrate:
Fig. 1 is that plastic method schematic diagram is prepared in plastics rotational forming of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention being described in detail, in following embodiment, all numbers are mass parts.
Following embodiment will disclose a kind of overweight functional master batch, this functional master batch is made up of following components by mass:
Wherein: resin is PP, ABS or PA, filler is barium sulfate, calcium carbonate, Kaolin, Muscovitum or Pulvis Talci.
Especially, described viscosity adjustment auxiliary agent is ethylene bis stearamide or melt acrylic ester polymer.
Especially, described function additive is one or more in fire retardant, antistatic additive, conductive agent, anti-wear agent, weather resisting agent, thermal conducting agent, luminous agent, corrosion-resistant agent, antibacterial.
Especially, described processing heat stabilizer is antioxidant 1010 or irgasfos 168, and described lubricant is OPE, wax ester or polyhydric alcohol wax.
Following example are also by openly a kind of plastic based on described overweight functional master batch, and this plastic is 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:
Rotational forming of the present invention preparation, based on the method for the plastic of overweight functional master batch, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
Selected by the present embodiment, overweight functional master batch raw material and proportioning are: PP resin 40 parts, 30 parts of barium sulfate, 24 parts of graphite, EBS5 part, 0.5 part of antioxidant, 0.5 part of polyhydric alcohol wax; The method for making that the present embodiment prepares this overweight functional master batch is as follows: by PP resin, BaSO4, graphite, EBS, antioxidant and polyhydric alcohol wax through high-speed mixer mix homogeneously, melted, blended, extrusion, check rod, water-cooled, pelletizing, drying, obtain overweight wear-resisting masterbatch;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
Matrix material selected by the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
The present embodiment heating-up temperature is 165 DEG C;
D), high speed rotating mould die cavity;
Controlling rotary rpm in the present embodiment is 50r/min;
E), pressurize cooling curing obtains overweight wear-resistant plastic goods.
Embodiment 2:
Rotational forming of the present invention preparation, based on the method for the plastic of overweight functional master batch, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
Selected by the present embodiment, overweight functional master batch raw material and proportioning are: PP resin 50 parts, BaSO420 parts, 24 parts of graphite, EBS5 part, 0.5 part of antioxidant, 0.5 part of polyhydric alcohol wax;
The method for making that the present embodiment prepares this overweight functional master batch is identical with embodiment 1;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
Matrix material selected by the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
The present embodiment heating-up temperature is 165 DEG C;
D), high speed rotating mould die cavity;
Controlling rotary rpm in the present embodiment is 50r/min;
E), pressurize cooling curing obtains overweight wear-resistant plastic goods.
Embodiment 3:
Rotational forming of the present invention preparation, based on the method for the plastic of overweight functional master batch, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
Selected by the present embodiment, overweight functional master batch raw material and proportioning are: PP resin 45 parts, BaSO420 parts, conductive black 29 parts, EBS5 part, 0.5 part of antioxidant, 0.5 part of polyhydric alcohol wax;
The method for making that the present embodiment prepares this overweight functional master batch is identical with embodiment 1;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
Matrix material selected by the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
The present embodiment heating-up temperature is 165 DEG C;
D), high speed rotating mould die cavity;
Controlling rotary rpm in the present embodiment is 50r/min;
E), pressurize cooling curing obtains overweight conductive plastic object.
Embodiment 4:
Rotational forming of the present invention preparation, based on the method for the plastic of overweight functional master batch, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
Selected by the present embodiment, overweight functional master batch raw material and proportioning are: PP resin 54 parts, BaSO420 parts, conductive black 20 parts, EBS5 part, 0.5 part of antioxidant, 0.5 part of polyhydric alcohol wax;
The method for making that the present embodiment prepares this overweight functional master batch is identical with embodiment 1;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
Matrix material selected by the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
The present embodiment heating-up temperature is 165 DEG C;
D), high speed rotating mould die cavity;
Controlling rotary rpm in the present embodiment is 50r/min;
E), pressurize cooling curing obtains overweight conductive plastic object.
Embodiment 5:
Rotational forming of the present invention preparation, based on the method for the plastic of overweight functional master batch, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
Selected by the present embodiment, overweight functional master batch raw material and proportioning are: PP resin 64 parts, BaSO420 parts, weather-proof auxiliary agent 10 parts, EBS5 part, 0.5 part of antioxidant, 0.5 part of polyhydric alcohol wax;
The method for making that the present embodiment prepares this overweight functional master batch is identical with embodiment 1;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
Matrix material selected by the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
The present embodiment heating-up temperature is 165 DEG C;
D), high speed rotating mould die cavity;
Controlling rotary rpm in the present embodiment is 50r/min;
E), pressurize cooling curing obtains overweight weather-proof plastic.
Embodiment 6:
Rotational forming of the present invention preparation, based on the method for the plastic of overweight functional master batch, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
Selected by the present embodiment, overweight functional master batch raw material and proportioning are: PP resin 68 parts, BaSO420 parts, weather-proof auxiliary agent 6 parts, EBS5 part, 0.5 part of antioxidant, 0.5 part of polyhydric alcohol wax;
The method for making that the present embodiment prepares this overweight functional master batch is identical with embodiment 1;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
Matrix material selected by the present embodiment is PE, and the mass ratio of selected PE and functional master batch is 1:1;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
The present embodiment heating-up temperature is 165 DEG C;
D), high speed rotating mould die cavity;
Controlling rotary rpm in the present embodiment is 50r/min;
E), pressurize cooling curing obtains overweight weather-proof plastic.
Fig. 1 is the plastics rotational forming of the present invention preparation plastic method schematic diagram based on overweight functional master batch, in figure, 1 is functional master batch, 2 is matrix material, and 3 is rotating shaft, and 4 is rotating mechanism, as shown in Figure 1, when for applying to rotate, functional master batch and dispersed at matrix material, and the matrix material that after applying to rotate, density is bigger moves to outside under the influence of centrifugal force, and the less functional master batch of density stays inside, it is achieved thereby that the selective distribution of function additive.
Product obtained by Example 1-6 is tested, and result is such as shown in table 1-3:
Table 1 embodiment 1,2 properties of product are tested
Test event | Standard | Embodiment 1 | Embodiment 2 |
Hot strength (MPa) | ISO527-2 | 19 | 17 |
Elongation at break (%) | ISO527-2 | 230 | 310 |
Notch impact strength (KJ/m2) | ISO180 | 19 | 22 |
Coefficient of friction | ISO8295 | 0.08 | 0.12 |
Melt flow rate (MFR) (g/10min) | ISO1133 | 12 | 14 |
Table 2 embodiment 3,4 properties of product are tested
Table 3 embodiment 5,6 properties of product are tested
Test event | Standard | Embodiment 5 | Embodiment 6 |
Hot strength (MPa) | ISO527-2 | 18 | 16 |
Elongation at break (%) | ISO527-2 | 200 | 270 |
Notch impact strength (KJ/m2) | ISO180 | 15 | 19 |
Melt flow rate (MFR) (g/10min) | ISO1133 | 13 | 18 |
Xenon lamp aging (h) | GB7174 | 600 | 400 |
From upper table 1-3 it can be seen that rotational forming of the present invention prepare plastic, while meeting various functional requirement, also maintain the original performance of resin body preferably, it is possible to meet corresponding instructions for use.
It should be noted that, in above-described embodiment, matrix material selected by step b) and functional master batch mass ratio be: 0.8-1.25, step c) heating-up temperature is 160 DEG C-230 DEG C, all can obtain the plastic meeting requirement when step d) rotary speed is 5-200r/min.
What finally illustrate is, preferred embodiment above is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail by above preferred embodiment, but skilled artisan would appreciate that, in the form and details it can be made various change, without departing from claims of the present invention limited range.
Claims (7)
1. based on the plastic of overweight functional master batch, it is characterised in that described plastic is 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; Described functional master batch is made up of following components by mass:
Wherein: resin is PP, ABS or PA, filler is barium sulfate, calcium carbonate, Kaolin, Muscovitum or Pulvis Talci; The method of described plastic is prepared in rotational forming, comprises the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
D), high speed rotating mould die cavity, overweight functional master batch moves to plastic top layer under the influence of centrifugal force;
E), cooling curing obtains product.
2. according to claim 1 based on the plastic of overweight functional master batch, it is characterised in that: described viscosity adjustment auxiliary agent is ethylene bis stearamide or melt acrylic ester polymer.
3. according to claim 1 based on the plastic of ultralight functional master batch, it is characterised in that: described function additive is one or more in fire retardant, antistatic additive, conductive agent, anti-wear agent, weather resisting agent, thermal conducting agent, luminous agent, corrosion-resistant agent, antibacterial.
4. according to claim 1 based on the plastic of ultralight functional master batch, it is characterised in that: described processing heat stabilizer is antioxidant 1010 or irgasfos 168, and described lubricant is OPE, wax ester or polyhydric alcohol wax.
5. the method that plastic as claimed in claim 1 is prepared in rotational forming, it is characterised in that comprise the following steps:
A), select overweight functional master batch raw material by proportioning and prepare overweight functional master batch;
B), matrix plastic and overweight functional master batch are selected according to described proportioning;
C), raw material selected by step b) it is placed in mold cavity and heats, controlling heating-up temperature so that matrix plastic is in molten condition, and overweight functional master batch is in semi-molten state;
D), high speed rotating mould die cavity, overweight functional master batch moves to plastic top layer under the influence of centrifugal force;
E), cooling curing obtains product.
6. the method that plastic is prepared in rotational forming according to claim 5, it is characterised in that: controlling heating-up temperature when step c) heats is 160 DEG C-230 DEG C.
7. the method that plastic is prepared in rotational forming according to claim 5, it is characterised in that: controlling rotary speed when step d) rotates is 5-200r/min.
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CN105985584A (en) * | 2015-02-06 | 2016-10-05 | 天津毅兴彩科技有限公司 | Corrosion-resistant plastic product composition and production method thereof |
CN105400048A (en) * | 2015-12-16 | 2016-03-16 | 周卫荣 | Plastic with antibacterial property |
CN106750984A (en) * | 2017-01-20 | 2017-05-31 | 埃维柯塑料科技(安徽)有限公司 | A kind of corrosion resistant PP ball valve bodies high and preparation method thereof |
CN108504086A (en) * | 2018-03-27 | 2018-09-07 | 苏州凌科特新材料有限公司 | A kind of preparation method and applications of antibiotic property medical material |
CN112608557A (en) * | 2020-12-23 | 2021-04-06 | 严中连 | Plastic preparation process |
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CN1161703A (en) * | 1994-08-29 | 1997-10-08 | 卡伯特公司 | Universal masterbatch |
CN102838828A (en) * | 2011-06-20 | 2012-12-26 | 上海安凸塑料添加剂有限公司 | Bright-black functional black masterbatch for ABS engineering plastics and preparation method thereof |
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Effective date of registration: 20201027 Address after: No.12 Xike Avenue, Shapingba District, Chongqing Patentee after: CHONGQING KEJUFU ENGINEERING PLASTICS Co.,Ltd. Patentee after: CHONGQING RESEARCH INSTITUTE CO., LTD. OF CHINA COAL TECHNOLOGY & ENGINEERING Group Address before: Science and Technology City Road Jiulongpo Erlang 400039 Chongqing City No. 6 Patentee before: CHONGQING RESEARCH INSTITUTE CO., LTD. OF CHINA COAL TECHNOLOGY & ENGINEERING Group |