CN107962724B - A kind of roll moulding shaping technology of camouflage color veined prods - Google Patents
A kind of roll moulding shaping technology of camouflage color veined prods Download PDFInfo
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- CN107962724B CN107962724B CN201711317764.3A CN201711317764A CN107962724B CN 107962724 B CN107962724 B CN 107962724B CN 201711317764 A CN201711317764 A CN 201711317764A CN 107962724 B CN107962724 B CN 107962724B
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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
- B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
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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
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/46—Heating or cooling
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention belongs to polymer production technical fields, and in particular to a kind of roll moulding shaping technology of camouflage color veined prods.The technique is regrinded into the powder of 30-100 mesh, the positioning of each color powder is placed in mold by the requirement of camouflage color, closed die the following steps are included: S1, according to camouflage color color carries out granulation additive color to raw material；S2, mold is sent into heating room, when mold is heated to 110-130 DEG C, the first single shaft starts to rotate, the first single shaft stops rotating when being warming up to 130-150 DEG C, second single shaft starts to rotate, and heating continues to rotate 2-8min, until completing the heating of mold after temperature reaches 170-190 DEG C in mould；S3, mold is transferred to cooling chamber, carries out strong wind cooling after first carrying out natural cooling 3-6 minutes again and adds water mist cooling, being cooled to mold outer surface is 60-70 DEG C, and temperature completes the cooling of mould product in mould after being 80-90 DEG C, and product is demoulded to taking-up out of mold.
Description
Technical field
The invention belongs to polymer production technical fields, and in particular to a kind of rotation molding work of camouflage color veined prods
Skill.
Background technique
Rotational moulding (also crying selection molding or rotation-formed) technique is that the fifties are grown up by Europe, later incoming beauty
The ground such as state, Japan, this moulding process starts only to make raw material, molding toy etc. with liquid PVC paste resin, and only it is made
For a supplement of injection molding, hollow molding and thermoforming, early sixties powdery PE comes out, and rotational molding technique is just used as thermoplastic
The powder compacting method of property plastics and obtain biggish development.To the seventies, this technique not only plastic small product, Er Qieke
To form massive article and ultra-large type product.Rotation molding is pressureless compacting, and centrifugal force will not be applied on product, so most
Whole product is in addition to slight convergent force, almost internal stress free, almost non orientation or overstrain, and recess will not occur, become
Shape and cracking etc. drawbacks, and the technique be all it is integrally formed, almost 100% raw material is all converted into product, non waste edge.But
The raw material range of choice of rotation molding is small, and the mechanical performance of product is no longer satisfied the increasingly strict requirement of people.
Currently, the main material of rotation molding industry is polyethylene (PE), punching low with melting point, easily molded, resistance to
Hit the advantages that performance is good, and especially low-temperature impact-resistant performance is good.But also have the shortcomings that it is many, make rotational moulding product application by
Limitation.They are with biggish shrinking percentage: 1%~5%, and also different parts shrinking percentage is different, and contraction causes to deform, Er Qiebian
Shape is all deforming within formed product a very long time, and many sizes is caused to require accurate product that can not produce.They have
There is a very high volume resistance, good insulating, but it is easy to produce static electricity, these products are limited for inflammable and explosive industry.Kind
Kind reason needs to design and develop a kind of new raw material, it must meet rotational molding technique requirement, has good mechanical strength,
Higher heat distortion temperature and good processing characteristics.
Summary of the invention
The purpose of the present invention is to provide a kind of roll moulding shaping technologies of camouflage color veined prods, in this process using processing
The excellent rotational moulding raw material of good fluidity, mechanical performance prepares the camouflage color texture rotational moulding product with superperformance.
In order to achieve the above object of the invention, the invention adopts the following technical scheme: a kind of rotational moulding of camouflage color veined prods at
Type technique, the technique the following steps are included:
S1, granulation additive color is carried out to raw material according to camouflage color color, regrinds into the powder of 30-100 mesh, it will by the requirement of camouflage color
Each color powder positioning is placed in mold, closed die；
S2, mold is sent into heating room, when mold is heated to 110-130 DEG C, the first single shaft starts to rotate, and is warming up to 130-
The first single shaft stops rotating at 150 DEG C, and the second single shaft starts to rotate, and heating continues to rotate 2-8min, until temperature reaches in mould
The heating of mold is completed after 170-190 DEG C；
S3, mold is transferred to cooling chamber, carries out strong wind cooling after first carrying out natural cooling 3-6 minutes again and adds water mist cooling,
Being cooled to mold outer surface is 60-70 DEG C, and temperature completes the cooling of mould product after being 80-90 DEG C in mould, by product from mold
Interior demoulding is taken out.
According to the camouflage color color of camouflage color veined prods, granulation additive color is carried out to raw material, as camouflage color color be it is red, yellow, blue, then
Red toner, yellow toner and blue toner and raw material mixing extruding pelletization is respectively adopted, obtains the raw particles of different colours.
Then using flour mill by granular feedstock grind into powder, convenient for heat transfer when raw material is powdered, so that farther out from mould inner wall
Raw material energy heated fast, raw material reaches as far as possible to be heated evenly.The temperature for heating room is first set as raw material softening point range,
Heat is thermally conductive to mould inner surface by the outer surface of mold, and arrival raw material softening point, raw material, which softens, to be uniformly adhered in mold
Inner surface.
Common rotational molding technique uses twin shaft spin axis, and the present invention needs to form the rotational moulding product with camouflage color texture, uses
Single-shaft-rotation first carries out the first single-shaft-rotation, then carries out the second single-shaft-rotation.Cooling is important in entire rotational molding technique
One ring after rotation molding, first carries out air-cooled, and the type of cooling of low rate stablizes shaped article quality, then to carry out water mist cold,
It is quickly cooled down, improves efficiency.
Preferably, the raw material includes 50-80wt% polyethylene, 15-45wt% modifying agent, 2-5wt% nano-scale layers
Shape silicate, wherein modifying agent is by Diblock copolymer, ethylene-acrylic acid alkyl ester copolymer, fluorine-containing
Ester polymer and siliceous dendrimer composition.
Rotational moulding raw material influences significantly the quality of rotational moulding product, and rotational moulding raw material should have sufficiently large melt index, with
Be conducive to the fusing of powder and preferable fluidity of molten is provided, is conducive to the evolution of survival gas in melt, obtains closely knit
Plastic products.Rotational moulding raw material should have good mechanical performance and weatherability, extend the service life of rotomoulded articles.The present invention
The raw material of selection can satisfy rotation molding requirement, prepare the rotation molding product with superperformance.
The ethylene-acrylic acid alkyl ester copolymer can be ethylene-methyl acrylate copolymer, ethylene-acrylic acid second
Ester copolymer etc.；The fluorinated acrylate monomer is acrylic acid trifluoro ethyl ester, trifluoroethyl methacrylate, five fluorine of acrylic acid
One or more of propyl ester, methacrylic acid octafluoro pentyl ester, dodecafluoroheptyl methacrylate；Siliceous dendrimer is
The number of silicon-carbon type dendrimer, the surface functional group in dendrimer forms exponential increase with the increase of algebra, finally
Lead to that space surface is crowded and generates Geometrical change, the processing flowing of raw material can be improved in the presence of siliceous dendrimer
Property, it is however generally that, algebra is bigger, and processing fluidity raising is more obvious.
Diblock copolymer in the form of long filament through in siliceous dendrimer, without several benzene
Ethylene-ethylene oxide copolymer filament runs through in length and breadth, so that raw material is macroscopically forming a kind of special " physical cross-linked network ",
The presence of " physical cross-linked network ", the skeleton that both can be used as material absorb energy when deformation occurs, can also make up thermoplastic
Property resin because the defect that is difficult to avoid that between big spherocrystal and gap are to the adverse effect of toughness of material, thus play simultaneously enhancing mend it is tough
Effect.But there are benzene moleculars in Diblock copolymer strand, while improving the mechanical property of raw material
The weather-proof inoxidizability of raw material is influenced, and fluorinated acrylate polymer can effectively improve the inoxidizability of raw material, and its shape
At loose network structure, macromolecular substances embedded network structure improves mechanical property；Ethylene-acrylic acid alkyl ester copolymer
It being scattered among network structure, it and adjacent molecule are closely linked, raising impact strength, especially low-temperature impact-resistant are played, it
There are also electrostatic interaction is eliminated, prevent electrostatic charge from surface aggregation.Binding force is opposite between the lamella of nanoscale phyllosilicate
Weaker, the mobility of raw material melt can be improved, using the opposite sliding between lamella so as to improve its processing in coefficient of friction very little
Performance；And lamella compact internal structure, rigidity is very high, has certain humidification to the performance of raw material.
The raw material be granulated additive color the preparation method comprises the following steps: first according to the load weighted modifying agent of quality proportioning -- styrene-ring
Oxidative ethane copolymer, ethylene-acrylic acid alkyl ester copolymer, fluorinated acrylate polymer and siliceous dendrimer,
600-1000rpm rotation 5-10min is mixed, and mixture is then fed screw extruder, while PE, toner is added, squeezed
Nanoscale phyllosilicate (avoiding layer structure impaired), blended melting, extruding pelletization is added in the later period out.
Preferably, the Diblock copolymer, ethylene-acrylic acid alkyl ester copolymer, fluorine-containing
The mass ratio of ester polymer and siliceous dendrimer is respectively 30-50%, 20-40%, 15-30%, 5-10%.
Preferably, the powder particles are 30-100 mesh.Particle diameter distribution peak value position is higher, finer particles, and product is comprehensive
It is more excellent to close performance, but considers from comprehensive production cost and efficiency, particle diameter distribution peak value is scheduled on best between 30-100 mesh.
Preferably, the rate of heat addition of heating room is 0.1-0.3 DEG C/s.
Preferably, first uniaxial revolving speed is 4-6r/min, second uniaxial revolving speed is 2-4r/min.
The present invention is made using special rotational molding technique using the rotational moulding raw material that excellent processing fluidity, mechanical performance are excellent
Rotation molding it is simple and easy, the rotational moulding product of acquisition is had excellent performance, camouflage color clean mark, uniformly.
Specific embodiment
Below by specific embodiment the technical scheme of the present invention will be further described explanation.If without specified otherwise,
Raw material employed in the embodiment of the present invention is raw material commonly used in the art, and method employed in embodiment is this
The conventional method in field.
Embodiment 1
Rotational moulding raw material includes 70wt% polyethylene, 25wt% modifying agent, 5wt% nanoscale phyllosilicate, wherein being modified
(monomer is propylene for Diblock copolymer, ethylene-methyl acrylate copolymer, fluorinated acrylate polymer in agent
Sour trifluoro ethyl ester) and the mass ratio of siliceous dendrimer be respectively 40%, 30%, 20%, 10%.
According to quality proportioning weigh modifying agent -- Diblock copolymer, ethylene-methyl acrylate copolymer,
Fluorinated acrylate polymer and siliceous dendrimer, 600rpm rotation 8min are mixed, are then fed mixture
Enter screw extruder, while PE, toner is added, squeezes out later period addition nanoscale phyllosilicate, blended melting, extruding pelletization.
The melt index of feed particles is 30g/10min (230 DEG C/2.16kg).Additive color is granulated to the powder for wearing into 100 mesh, by camouflage color
Requirement by each color powder positioning be placed in mold, closed die；Mold is sent into heating room, when mold is heated to 110 DEG C,
First single shaft starts to rotate with 4r/min, heats room with the rate of 0.5 DEG C/s and is warming up to 130 DEG C, at this time the first uniaxial stopping rotation
Turn, the second single shaft starts to rotate with 2r/min, is heated up with the rate of 0.5 DEG C/s and continues to rotate 3min, until mould Nei Wenduda
The heating of mold is completed after to 180 DEG C；Mold is transferred to cooling chamber, natural cooling is first carried out and carries out strong wind cooling again after five minutes
Add water mist cooling, be cooled to 60 DEG C of mold outer surface, the cooling of mould product is completed after temperature reaches 90 DEG C in mould, by product from
Demoulding is taken out in mold.
Embodiment 2
Rotational moulding raw material includes 70wt% polyethylene, 25wt% modifying agent, 5wt% nanoscale phyllosilicate, wherein being modified
Diblock copolymer in agent, ethylene-acrylic acid alkyl ester copolymer, fluorinated acrylate polymer and siliceous
The mass ratio of dendrimer be respectively 40%, 30%, 20%, 10%.
According to quality proportioning weigh modifying agent -- Diblock copolymer, ethylene-methyl acrylate copolymer,
Fluorinated acrylate polymer and siliceous dendrimer, 600rpm rotation 8min are mixed, are then fed mixture
Enter screw extruder, while PE, toner is added, squeezes out later period addition nanoscale phyllosilicate, blended melting, extruding pelletization.
The melt index of feed particles is 30g/10min (230 DEG C/2.16kg).Additive color is granulated to the powder for wearing into 100 mesh, by camouflage color
Requirement by each color powder positioning be placed in mold, closed die；Mold is sent into heating room, when mold is heated to 110 DEG C,
First single shaft starts to rotate with 3r/min, heats room with the rate of 0.3 DEG C/s and is warming up to 130 DEG C, at this time the first uniaxial stopping rotation
Turn, the second single shaft starts to rotate with 3r/min, is heated up with the rate of 0.3 DEG C/s and continues to rotate 4min, until mould Nei Wenduda
The heating of mold is completed after to 180 DEG C；Mold is transferred to cooling chamber, natural cooling is first carried out and carries out strong wind cooling again after five minutes
Add water mist cooling, be cooled to 60 DEG C of mold outer surface, the cooling of mould product is completed after temperature reaches 90 DEG C in mould, by product from
Demoulding is taken out in mold.
Embodiment 3
Rotational moulding raw material includes 70wt% polyethylene, 25wt% modifying agent, 5wt% nanoscale phyllosilicate, wherein being modified
(monomer is propylene for Diblock copolymer, ethylene-methyl acrylate copolymer, fluorinated acrylate polymer in agent
Sour trifluoro ethyl ester) and the mass ratio of siliceous dendrimer be respectively 40%, 30%, 20%, 10%.
According to quality proportioning weigh modifying agent -- Diblock copolymer, ethylene-methyl acrylate copolymer,
Fluorinated acrylate polymer and siliceous dendrimer, 600rpm rotation 80min are mixed, are then fed mixture
Enter screw extruder, while PE, toner is added, squeezes out later period addition nanoscale phyllosilicate, blended melting, extruding pelletization.
The melt index of feed particles is 30g/10min (230 DEG C/2.16kg).Additive color is granulated to the powder for wearing into 100 mesh, by camouflage color
Requirement by each color powder positioning be placed in mold, closed die；Mold is sent into heating room, when mold is heated to 110 DEG C,
First single shaft starts to rotate with 4r/min, heats room with the rate of 0.3 DEG C/s and is warming up to 130 DEG C, at this time the first uniaxial stopping rotation
Turn, the second single shaft starts to rotate with 2r/min, is heated up with the rate of 0.3 DEG C/s and continues to rotate 4min, until mould Nei Wenduda
The heating of mold is completed after to 180 DEG C；Mold is transferred to cooling chamber, natural cooling is first carried out and carries out strong wind cooling again after five minutes
Add water mist cooling, be cooled to 60 DEG C of mold outer surface, the cooling of mould product is completed after temperature reaches 90 DEG C in mould, by product from
Demoulding is taken out in mold.
Embodiment 4
Rotational moulding raw material includes 60wt% polyethylene, 35wt% modifying agent, 5wt% nanoscale phyllosilicate, wherein being modified
(monomer is propylene for Diblock copolymer, ethylene-ethyl acrylate copolymer, fluorinated acrylate polymer in agent
Sour five fluorine propyl ester) and the mass ratio of siliceous dendrimer be respectively 50%, 20%, 25%, 5%.
According to quality proportioning weigh modifying agent -- Diblock copolymer, ethylene-ethyl acrylate copolymer,
Fluorinated acrylate polymer and siliceous dendrimer, 700rpm rotation 7min are mixed, are then fed mixture
Enter screw extruder, while PE, toner is added, squeezes out later period addition nanoscale phyllosilicate, blended melting, extruding pelletization.
The melt index of feed particles is 32g/10min (230 DEG C/2.16kg).Additive color is granulated to the powder for wearing into 80 mesh, by camouflage color
It is required that the positioning of each color powder is placed in mold, closed die；Mold is sent into heating room, when mold is heated to 130 DEG C, the
One single shaft starts to rotate with 5r/min, heats room with the rate of 0.2 DEG C/s and is warming up to 150 DEG C, and the first single shaft stops rotating at this time,
Second single shaft starts to rotate with 2r/min, is heated up with the rate of 0.2 DEG C/s and continues to rotate 5min, until temperature reaches in mould
The heating of mold is completed after 190 DEG C；Mold is transferred to cooling chamber, natural cooling is first carried out and carries out strong wind cooling again after five minutes and add
Water mist is cooling, is cooled to 70 DEG C of mold outer surface, and the cooling of mould product is completed after temperature reaches 90 DEG C in mould, by product from mould
Demoulding is taken out in tool.
Embodiment 5
Rotational moulding raw material includes 70wt% polyethylene, 27wt% modifying agent, 3wt% nanoscale phyllosilicate, wherein being modified
(monomer is methyl for Diblock copolymer, ethylene-methyl acrylate copolymer, fluorinated acrylate polymer in agent
Dodecafluorhe-ptylacrylate) and the mass ratio of siliceous dendrimer be respectively 35%, 35%, 25%, 5%.
According to quality proportioning weigh modifying agent -- Diblock copolymer, ethylene-methyl acrylate copolymer,
Fluorinated acrylate polymer and siliceous dendrimer, 1000rpm rotation 5min are mixed, are then fed mixture
Enter screw extruder, while PE, toner is added, squeezes out later period addition nanoscale phyllosilicate, blended melting, extruding pelletization.
The melt index of feed particles is 33g/10min (230 DEG C/2.16kg).Additive color is granulated to the powder for wearing into 50 mesh, by camouflage color
It is required that the positioning of each color powder is placed in mold, closed die；Mold is sent into heating room, when mold is heated to 110 DEG C, the
One single shaft starts to rotate with 5r/min, heats room with the rate of 0.1 DEG C/s and is warming up to 140 DEG C, and the first single shaft stops rotating at this time,
Second single shaft starts to rotate with 3r/min, is heated up with the rate of 0.1 DEG C/s and continues to rotate 8min, until temperature reaches in mould
The heating of mold is completed after 175 DEG C；Mold is transferred to cooling chamber, strong wind cooling is carried out again after first carrying out natural cooling 4 minutes and adds
Water mist is cooling, is cooled to 65 DEG C of mold outer surface, and the cooling of mould product is completed after temperature reaches 85 DEG C in mould, by product from mould
Demoulding is taken out in tool.
Comparative example 1
Comparative example 1 and the difference of embodiment 5 are that the raw material that comparative example 1 uses is polyethylene, melt index 14g/
10min (230 DEG C/2.16kg), it is other same as Example 5.
Comparative example 2
Comparative example 2 and the difference of embodiment 5 are that the raw material that comparative example 2 uses does not include modifying agent, and melt index is
15g/10min (230 DEG C/2.16kg), it is other same as Example 5.
Comparative example 3
Comparative example 3 and the difference of embodiment 5 be, without siliceous tree-shaped big in the modifying agent for the raw material that comparative example 3 uses
Molecule, melt index is 16g/10min (230 DEG C/2.16kg), other same as Example 5.
Comparative example 4
Comparative example 4 and the difference of embodiment 5 are, without styrene-epoxy second in the modifying agent for the raw material that comparative example 4 uses
Alkyl copolymer, melt index is 18g/10min (230 DEG C/2.16kg), other same as Example 5.
Comparative example 5
Comparative example 5 and the difference of embodiment 5 are that the raw material that comparative example 5 uses does not include nanoscale phyllosilicate,
Melt index is 16g/10min (230 DEG C/2.16kg), other same as Example 5.
Rotational moulding product prepared by embodiment 1-5 and comparative example 1-5 carries out tension test, Ao Erxun implosion test, cantilever
Liang Shi impact test and environmental stress crack resistance test.Environmental stress crack resistance test: according at 80 DEG C with 20%
Antarox (CO-630) solution carries out environmental stress cracking test, and using the sample with a thickness of 3mm, the value in table 1 indicates 50%
Rupture time (hour).
The performance parameter of table 1 embodiment 1-5 and comparative example 1-5 rotational moulding product
In addition, claimed midpoint of technical range be not exhaustive and in embodiment technical solution it is right
The same replacement of single or multiple technical characteristics is formed by new technical solution, equally all in claimed model
In enclosing；Simultaneously the present invention program it is all enumerate or unlisted embodiment in, parameters in the same embodiment are only
Indicate an example (i.e. a kind of feasible scheme) for its technical solution.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, but simultaneously
Spirit or beyond the scope defined by the appended claims of the invention is not deviated by.
Claims (5)
1. a kind of roll moulding shaping technology of camouflage color veined prods, which is characterized in that the technique the following steps are included:
S1, granulation additive color is carried out to raw material according to camouflage color color, regrinds into powder, position each color powder by the requirement of camouflage color
It is placed in mold, closed die；
S2, mold is sent into heating room, when mold is heated to 110-130 DEG C, the first single shaft starts to rotate, and is warming up to 130-150
DEG C when the first single shaft stop rotating, the second single shaft starts to rotate, heating continue rotate 2-8min, until mould in temperature reach 170-
The heating of mold is completed after 190 DEG C；
S3, mold is transferred to cooling chamber, carries out strong wind cooling after first carrying out natural cooling 3-6 minutes again and adds water mist cooling, it is cooling
It is 60-70 DEG C to mold outer surface, temperature completes the cooling of mould product in mould after being 80-90 DEG C, and product is taken off out of mold
Mould takes out；
The raw material includes 50-80wt% polyethylene, 15-45wt% modifying agent, 2-5wt% nanoscale phyllosilicate, wherein being modified
Agent is by Diblock copolymer, ethylene-acrylic acid alkyl ester copolymer, fluorinated acrylate polymer and siliceous
Dendrimer composition.
2. a kind of roll moulding shaping technology of camouflage color veined prods according to claim 1, which is characterized in that the benzene second
Alkene-ethylene oxide copolymer, ethylene-acrylic acid alkyl ester copolymer, fluorinated acrylate polymer and siliceous tree-shaped big
The mass ratio of molecule is respectively 30-50%, 20-40%, 15-30%, 5-10%.
3. a kind of roll moulding shaping technology of camouflage color veined prods according to claim 1, which is characterized in that the powder grain
Degree is 30-100 mesh.
4. a kind of roll moulding shaping technology of camouflage color veined prods according to claim 1, which is characterized in that heat adding for room
Hot rate is 0.1-0.3 DEG C/s.
5. a kind of roll moulding shaping technology of camouflage color veined prods according to claim 1, which is characterized in that the first single shaft
Revolving speed is 4-6r/min, and the second uniaxial revolving speed is 2-4r/min.
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| CN108659388A (en) * | 2018-05-08 | 2018-10-16 | 温州市赢创新材料技术有限公司 | A kind of hydrophobic CABLE MATERIALS and preparation method thereof |
| CN113308037B (en) * | 2021-05-20 | 2022-06-17 | 浙江瑞堂塑料科技股份有限公司 | Large-particle rotational molding composite material with different color surface effects and preparation method thereof |
| CN114621515B (en) * | 2022-02-28 | 2023-12-05 | 浙江贝仕达科技股份有限公司 | Rotational molding product with terrazzo-like effect and preparation method thereof |
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| ES2110901B1 (en) * | 1995-06-02 | 1999-07-01 | Fundacion Gaiker | MANUFACTURING PROCEDURE FOR HOLLOW PIECES OF CONTINUOUS SKIN WITH MARBLE EFFECT OR ARTIFICIAL ONICE. |
| US6602452B2 (en) * | 2001-07-18 | 2003-08-05 | Mcghan Medical Corporation | Rotational molding of medical articles |
| CN103665528B (en) * | 2012-09-20 | 2015-12-02 | 中国石油化工股份有限公司 | Be applicable to polyolefine resin composition of rotation molding processing and preparation method thereof |
| CN105881794B (en) * | 2016-05-09 | 2017-12-29 | 浙江瑞堂塑料科技有限公司 | A kind of rotational molding technique for obtaining surface effect |
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2017
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Denomination of invention: Rotational molding process of a camouflage texture product Effective date of registration: 20210621 Granted publication date: 20190830 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch Pledgor: WENLING RISINGSUN ROTOMOLDING TECHNOLOGY Co.,Ltd. Registration number: Y2021330000608 |