CN107082957A - One kind exempts from spraying PP materials and preparation method thereof - Google Patents
One kind exempts from spraying PP materials and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Engineering & Computer Science (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
Exempt from spraying PP materials and preparation method thereof the invention provides one kind.The present invention's exempts from spraying PP materials, by weight, including following preparing raw material：90~97 parts of PP, 1~5 part of aluminium silver bar, 0.2~0.3 part of antioxidant, 0.1~0.2 part of anti-UV auxiliary agents, 0.1~0.5 part of wax powder；The present invention's exempts from spraying PP materials, and aluminium silver bar and matrix resin PP materials from good dispersion are obtained to exempt from spraying PP material reflectance height；Aluminium silver bar being uniformly dispersed in PP materials；The preparation method for exempting from spraying PP materials of the present invention, simplifies production process, reduces production cost, obtained to exempt to spray PP materials, reflectivity is high, and glossiness is high, and metal-like is good, the sprayed on material of alternative metal-like.
Description
Technical field
The invention belongs to exempt from sprayed on material technical field, it is related to one kind and exempts from spraying PP materials and preparation method thereof.
Background technology
Spraying is a kind of highly developed technique, covers the every aspect of our lives, in the past in order to meet plastic table
Face performance and aesthetic, often carry out spray treatment, i.e., by spray gun or dish-style atomizer, by means of pressure to the surface of product
Or centrifugal force, the sprays such as paint are dispersed into uniform and fine droplet, the coating process on coated article surface is applied over.
But there are some obvious shortcomings in spraying：Easily fall paint, it is difficult to simple to repair；Complex technical process, in modeling
After material products are molded, secondary spraying is carried out, baking vanish solidification may be also needed to；Environmental pollution is larger, and paint solvent is volatile,
Overwhelming majority harm is healthy；Fraction defective is higher, and because coat of paint hardly possible is removed, product is difficult to recycling；Current various countries ring
Protect laws and regulations face to face and as strict as possible, higher requirement is proposed to the useless processing of enterprise's work, therefore, the cost of spraying increasingly rises.
CN104629340A provides a kind of exempting from special decorative effects and sprays PPO resin combinations and its preparation side
Method and application, including following component：PPO resin 70-98wt%, polymer overmold special-effect powder microballoon 1-25wt% are compatible
Agent 0-10wt%, antioxidant 0.1-1wt%, processing aid 0.1-0.5wt%；The invention is by the way that special-effect powder is gathered with aqueous
Compound dispersion liquid, which is overmolding to redisperse after microballoon, into PPO resins, can be obviously improved special-effect powder compatible with PPO resins
Property, eliminate the product current mark that surface is formed in extrusion or injection moulding process and mitigate weld bond, prepare and exempt to spray PPO resins
Composition.
CN102942742A provides a kind of PP materials for exempting from spraying with high glaze, metal or pearly-lustre flicker effect, it
It is by the material composition of following percentage by weight：PP97-99%, irgasfos 168 0.1-0.3%, antioxidant 1010 0.1-
0.5%, lubrication dispersing agent TAF0.1-1%, effect pigment 0.3-1.5%, the invention also provide the preparation side of above-mentioned PP materials
Method.The PP materials of the invention can obtain good high glaze and pearly-lustre flicker, and metal spray painting without spraying directly injection
Effect, possesses good appearance, and cost has been saved compared with lacquer spraying technique, while the depainting avoided during product use is asked
Topic, then coordinate bloom mirror surface mould and the condition of molding of higher mould temperature, the problem of product weld bond and current mark can also be solved,
Realize and really exempt from spraying.
CN106279971A discloses a kind of bloom PP factory formulas for exempting from spraying, includes the group of following percentage by weight
Part, 6~9% tetrahydrofuran, 0.1~0.3% tetra-triphenylphosphine palladium, 1~2% pearl essence, 1~2% toner, 0.3
~0.5% lubricant, 0.3~0.5% nucleator, 0.3~0.5% liquid form removes line brightener, 0.5~
The flow ability modifying agent of 0.8% liquid form, the phase solvent of 0.3~0.8% liquid form, surplus is PP powder；The invention
It is good that formula directly produces obtained product surface bloom effect, and uniform continuous pearl powder layer is formed on the surface of product, and
Without flow liner, texture is strong, and need not carry out the surface treatment such as oil spout or spraying, simplifies production process, reduces production cost.
It is for spraying relatively, in the last few years, although in the market, which has emerged in large numbers part, exempts from sprayed product, to produce to exempt from spraying
Easily there are current mark, joint line, scratch, the low inherent shortcoming of gloss, and these defects and not solved effectively in product.
The content of the invention
In view of the shortcomings of the prior art, an object of the present invention is that providing one kind exempts to spray PP materials, and reflectivity is high,
Glossiness is high, and metal-like is good, the sprayed on material of alternative metal-like.
For up to this purpose, the present invention uses following technical scheme：
One kind is exempted to spray PP materials, by weight, including following preparing raw material：
It is described to exempt to spray PP materials in the present invention, by weight, including following preparing raw material：
PP90~97 part, such as 90 parts, 91 parts, 92 parts, 93 parts, 94 parts, 95 parts, 96 parts, 97 parts；
1~5 part of aluminium silver bar, such as 1 part, 2 parts, 3 parts, 4 parts, 5 parts；
0.2~0.3 part of antioxidant, such as 0.2 part, 0.3 part；
Anti- 0.1~0.2 part of UV auxiliary agents, such as 0.1,0.2 part；
0.1~0.5 part of wax powder, such as 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part.
In the present invention, described polypropylene (abbreviation PP) is homopolymerization PP and/or copolymerization PP.Wherein, the homopolymerization PP is molten
Melt index (abbreviation MFI) for 1~5g/10min, such as 1g/10min, 2g/10min, 3g/10min, 4g/10min, 5g/
10min.Preferably, described copolymerization PP MFI is 20~35g/10min, such as 20g/10min, 21g/10min, 22g/
10min、23g/10min、24g/10min、25g/10min、26g/10min、27g/10min、28g/10min、29g/10min、
30g/10min、31g/10min、32g/10min、33g/10min、34g/10min、35g/10min。
Aluminium silver bar is also known as aluminium silver powder, in small silver dollar shape or flakey, and thickness is 0.1 μm~2 μm, and particle diameter is 10~
200 μm, polynary arrangement is formed in the plastic, there is good albedo to ultraviolet, so as to delay ultraviolet to plastic cement
The aging damage of product, prevents passing through for water gas and ion, protects plastic cement, makes excellent weather resistance and hard in general traditional plastic cement
Pigment.In the present invention, the particle diameter of described aluminium silver bar is 30~35 μm, such as 30 μm, 31 μm, 32 μm, 33 μm, 34 μm, 35 μm,
Aluminium silver bar in the particle size range is added in plastic cement, can be very good to be distributed in plastic cement, make plastic material that there is metal
Gloss and bright color, and close to spraying effect, it is gloomy to overcome conventional aluminium silver powder color and luster, easily plays ash, pollutes environment
Harmful shortcoming；Can long-term storage it is not oxidizable and with good dispersion, colorability, covering power.
The antioxidant of the present invention is preferably B225 antioxidant (IRGANOX B225), and it is processed as synergy, long-acting heat is steady
Determine agent and can be applied to polyolefin, such as polyethylene, polypropylene, polybutene, EVA；Also it can be used for engineering plastics, styrene homopolymerization or common
Polymers, polyurethane, elastomer, adhesive and other organic materials.IRGANOX B 225 are the classical compound antioxidant of binary,
Wherein sterically hindered phenol content is higher, emphasizes long-term stability, and it has following features：Melt initial flow index can be kept；Can reduction
Finished color；Long-term stability can be improved.
Wherein, the uvioresistant auxiliary agent (referred to as anti-UV auxiliary agents) is hindered amine as light stabilizer Chimassorb 944.
Chimassorb 944 is a kind of hindered amine as light stabilizer of HMW, can apply polyolefin plastics (such as polypropylene, gather
Ethene), in olefin copolymer (mixture of such as EVA and propylene and rubber), have the effect of antioxidant, while having to polymer
Long-term thermal stability effect.In addition, after Chimassorb 944 is added in resin, the transparency and color of resin are unaffected,
Compatibility with resin is fine, is readily dispersed in polymeric matrix, its heat endurance and macromolecule makes it at high temperature
It is not volatile, do not decompose；Good fluidity, dustless, easily transport and charging.
In the present invention, described wax powder is ethylene bis stearic acid amide (abbreviation EBS).In EBS molecular structures, two ends are non-
Polar long chain alkyl, centre is polarity bisamide base, this symmetrical meso-position polar structure, assigns EBS excellent wetting and infiltration
Ability.There are significant wetting and peptizaiton to all kinds of pigment and filler powder.Polar group and nonpolar base in EBS molecules
Matched well and higher molecular weight, make it both do not dissolve in alcohols, again do not dissolve in oils.This balanced property makes it most of
There is moderate compatibility in resin, and show excellent inside and outside lubricant effect.As lubricant, thinner, take off
Mould agent, is widely used in polyethylene (abbreviation PE), polypropylene (abbreviation PP), polystyrene (abbreviation PS), poly terephthalic acid fourth
Diol ester (abbreviation PBT), polyethylene terephthalate (abbreviation PET), polymethyl methacrylate (abbreviation PMMA), poly- carbon
Acid esters (abbreviation PC), polyvinyl chloride (abbreviation PVC), acrylonitrile-butadiene-styrene copolymer (abbreviation ABS), acrylonitrile-benzene
Vinyl (abbreviation AS), nylon (abbreviation PA), phenolic resin (abbreviation PF), urea-formaldehyde plastics (abbreviation UF), melamino-formaldehyde
The resins such as resin (abbreviation MF).EBS satiny characteristic, makes it have slipping agent function, can be as refreshing in inflation film production
Lubrication prescription is used, and is improved in the Kekelé structure count pure resin between film surface and is added EBS, is acted on inside and outside lubricant effect and viscosity reduction.Resin is processed
During, in the case of keeping shear stress constant, addition EBS allow to improve shear rate so as to accelerate the plasticizing of resin with
Mixing, improves production efficiency, and can reduce yield observable index.
The second object of the present invention is to provide a kind of preparation method for exempting to spray PP materials, comprised the following steps：By weight
Measure part meter, by 90~97 parts of PP, 1~5 part of aluminium silver bar, 0.2~0.3 part of antioxidant, 0.1~0.2 part of anti-UV auxiliary agents,
Add in double screw extruder, prepared after extruded, cooling, pelletizing, sieving, drying after 0.1~0.5 part of wax powder is well mixed
Obtain exempting to spray PP materials.
The preparation method for exempting from spraying PP materials of the present invention, simplifies production process, reduces production cost, pass through raw material
Selection and proportioning and process conditions adjustment, make decentralization of the aluminium silver bar in PP uniform, obtained PP plastic products
Metal sense is high, and the reflectance under different angles is high, and exempting from spraying can be with the sprayed product of alternative metals texture.
Wherein, the mixed process is carried out in high-speed mixer, and the speed of the mixing is 100~300r/
Min, such as 100r/min, 120r/min, 150r/min, 160r/min, 180r/min, 200r/min, 230r/min, 250r/
min、270r/min、300r/min；The time of the mixing be 10~20min, such as 10min, 11min, 12min, 13min,
14min、15min、16min、17min、18min、19min、20min。
Preferably, the extrusion temperature of the double screw extruder be 180~230 DEG C, such as 180 DEG C, 190 DEG C, 200 DEG C,
210℃、220℃、230℃.It is Three-section type heating to control extrusion, and first area is first paragraph, and second area is second segment,
3rd~10 region is the 3rd section, and each section of extrusion temperature is：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 region
Temperature is 230 DEG C, and the 11st regional temperature is 220 DEG C, the more flexible control screw rod different parts of Three-section type heating of the invention
Heat demand, preferably realizes plastics from the process of melting, plasticizing to metering.
Preferably, the screw speed of the double screw extruder is 300~400r/min, such as 300r/min, 310r/
min、320r/min、330r/min、340r/min、350r/min、360r/min、370r/min、380r/min、390r/min、
400r/min。
As the preferred scheme of the present invention, a kind of preparation method for exempting to spray PP materials comprises the following steps：By weight
Meter, by 90~97 parts of PP, 1~5 part of aluminium silver bar, 0.2~0.3 part of antioxidant, 0.1~0.2 part of anti-UV auxiliary agents, 0.1
~0.5 part of wax powder is added in high-speed mixer, and 10~20min is mixed to after uniform with 100~300r/min mixing velocity
Add in double screw extruder, it is 180~230 DEG C to control extrusion temperature, it is 300~400r/min to control screw speed, through squeezing
Go out, cool down, pelletizing, sieving, dry after prepare exempt from spray PP materials.
Compared with prior art, beneficial effects of the present invention are：
(1) of the invention to exempt to spray PP materials, aluminium silver bar and matrix resin PP materials from good dispersion are obtained
Exempt from spraying PP material reflectances high, the reflectivity under 30 ° of angles more than 28%, the reflectivity under 45° angle degree more than 42%,
Reflectivity under 75 ° of angles is more than 39%.
(2) aluminium silver bar being uniformly dispersed in PP materials, the average grain diameter of remaining aluminium flake in spraying PP finished materials are exempted from
More than 12 μm.
(3) the preparation method technique for exempting to spray PP materials of the invention is simple, and cost is low, obtained to exempt from spraying PP material tools
There are higher glossiness and metal-like, the sprayed on material of alternative metal-like.
Embodiment
Technical scheme is further illustrated below by embodiment.
Unless specific instructions, various raw materials of the invention are commercially available buys, or is prepared according to the conventional method of this area
Obtain.
Embodiment 1
By weight, the homopolymerization PP for being 3g/10min by 97 parts of MFI, the aluminium silver bar that 2 parts of particle diameters are 34 μm, 0.3 part
IRGANOX B225,0.2 part of Chimassorb 944,0.5 part of wax powder sequentially add in high-speed mixer, with 200r/
Min speed mixing 15min, the material mixed is added in double screw extruder hopper, it is 350r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Embodiment 2
By weight, the homopolymerization PP for being 4g/10min by 97 parts of MFI, the aluminium silver bar that 2 parts of particle diameters are 32 μm, 0.3 part
IRGANOX B225,0.2 part of Chimassorb 944,0.5 part of wax powder sequentially add in high-speed mixer, with 100r/
Min speed mixing 20min, the material mixed is added in double screw extruder hopper, it is 400r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Embodiment 3
By weight, the homopolymerization PP for being 5g/10min by 97 parts of MFI, the aluminium silver bar that 2 parts of particle diameters are 30 μm, 0.3 part
IRGANOX B225,0.2 part of Chimassorb 944,0.5 part of wax powder sequentially add in high-speed mixer, with 300r/
Min speed mixing 10min, the material mixed is added in double screw extruder hopper, it is 300r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Embodiment 4
By weight, the copolymerization PP for being 29g/10min by 97 parts of MFI, the aluminium silver bar that 2 parts of particle diameters are 34 μm, 0.3 part
IRGANOX B225,0.2 part of Chimassorb 944,0.5 part of wax powder sequentially add in high-speed mixer, with 200r/
Min speed mixing 15min, the material mixed is added in double screw extruder hopper, it is 350r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Embodiment 5
By weight, the copolymerization PP for being 20g/10min by 97 parts of MFI, the aluminium silver bar that 2 parts of particle diameters are 32 μm, 0.3 part
IRGANOX B225,0.2 part of Chimassorb 944,0.5 part of wax powder sequentially add in high-speed mixer, with 200r/
Min speed mixing 15min, the material mixed is added in double screw extruder hopper, it is 350r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Embodiment 6
By weight, the copolymerization PP for being 35g/10min by 97 parts of MFI, the aluminium silver bar that 2 parts of particle diameters are 30 μm, 0.3 part
IRGANOX B225,0.2 part of Chimassorb 944,0.5 part of wax powder sequentially add in high-speed mixer, with 200r/
Min speed mixing 15min, the material mixed is added in double screw extruder hopper, it is 350r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Embodiment 7
By weight, the homopolymerization PP for being 2g/10min by 95 parts of MFI, the aluminium silver bar that 5 parts of particle diameters are 30 μm, 0.2 part
IRGANOX B225,0.1 part of Chimassorb 944,0.3 part of wax powder sequentially add in high-speed mixer, with 200r/
Min speed mixing 15min, the material mixed is added in double screw extruder hopper, it is 350r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Embodiment 8
By weight, the copolymerization PP for being 28g/10min by 90 parts of MFI, the aluminium silver bar that 1 part of particle diameter is 34 μm, 0.2 part
IRGANOX B225,0.1 part of Chimassorb 944,0.1 part of wax powder sequentially add in high-speed mixer, with 200r/
Min speed mixing 15min, the material mixed is added in double screw extruder hopper, it is 350r/ to control screw speed
Min, controls the extrusion temperature to be：180 DEG C of first area, 220 DEG C of second area, the 3rd~10 regional temperature is 230 DEG C, the 11st area
Domain temperature is 220 DEG C, and the material of extrusion is prepared after cooling, pelletizing, sieving, drying successively and exempts to spray PP materials.
Spraying PP materials will be exempted from made from embodiment 1-8 to be tested, test event includes 30 degree, 45 degree, 75 degree of light
Reflectivity, dispersed homogeneous degree of the aluminium silver powder in PP, the average grain diameter of aluminium silver bar remaining aluminium flake in the product, test result such as table
Shown in 1.
Table 1
Produced by the present invention to exempt to spray PP materials, surface is without defects such as current mark, joint line, scratches.It can be seen by the data of table 1
Go out, of the invention exempts from spraying PP materials, and reflectivity is high, and the reflectivity under 30 ° of angles is more than 28%, the reflection under 45° angle degree
Rate is more than 42%, and the reflectivity under 75 ° of angles is more than 39%；Aluminium silver bar being uniformly dispersed in PP materials, is exempting from spraying
The average grain diameter of remaining aluminium flake is more than 12 μm in PP finished materials, therefore the spraying PP materials of exempting from of the present invention have higher light
Damp degree and metal-like, the sprayed on material of alternative metal-like.
Applicant states that the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, do not mean that the present invention has to rely on above-mentioned detailed
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within the present invention's
Within the scope of protection domain and disclosure.
Claims (10)
1. one kind is exempted to spray PP materials, it is characterised in that by weight, including following preparing raw material：
2. according to claim 1 exempt to spray PP materials, it is characterised in that the PP is homopolymerization PP and/or copolymerization PP.
3. according to claim 2 exempt to spray PP materials, it is characterised in that the MFI of the homopolymerization PP is 1~5g/
10min；
Preferably, the MFI of the copolymerization PP is 20~35g/10min.
4. according to one of claim 1-3 exempting from spray PP materials, it is characterised in that the particle diameter of the aluminium silver bar be 30~
35μm。
5. exempting from according to one of claim 1-4 sprays PP materials, it is characterised in that the antioxidant is B225 antioxygens
Agent.
6. exempting from according to one of claim 1-5 sprays PP materials, it is characterised in that the anti-UV auxiliary agents are
Chimassorb 944。
7. exempting from according to one of claim 1-6 sprays PP materials, it is characterised in that the wax powder is EBS.
8. a kind of exempting from as described in one of claim 1-7 sprays the preparation method of PP materials, it is characterised in that including following step
Suddenly：By weight, by 90~97 parts of PP, 1~5 part of aluminium silver bar, 0.2~0.3 part of antioxidant, 0.1~0.2 part anti-
Add in double screw extruder, extruded, cooling, pelletizing, sieving, do after UV auxiliary agents, 0.1~0.5 part of wax powder are well mixed
Prepared after dry and exempt to spray PP materials.
9. preparation method according to claim 8, it is characterised in that the mixed process is carried out in high-speed mixer
, the speed of the mixing is 100~300r/min, and the time of the mixing is 10~20min；
Preferably, the extrusion temperature of the double screw extruder is 180~230 DEG C；
Preferably, the screw speed of the double screw extruder is 300~400r/min.
10. preparation method according to claim 9, it is characterised in that by weight, by 90~97 parts of PP, 1~5
The aluminium silver bar of part, 0.2~0.3 part of antioxidant, 0.1~0.2 part of anti-UV auxiliary agents, 0.1~0.5 part of wax powder add mixed at a high speed
In conjunction machine, 10~20min is mixed into uniform rear addition double screw extruder with 100~300r/min mixing velocity, control
Extrusion temperature is 180~230 DEG C, and it is 300~400r/min to control screw speed, after extruded, cooling, pelletizing, sieving, drying
Prepare and exempt to spray PP materials.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113004614A (en) * | 2021-03-10 | 2021-06-22 | 重庆嘉良塑胶制品有限责任公司 | Spraying-free polypropylene composite material and preparation method thereof |
| CN114249942A (en) * | 2021-03-04 | 2022-03-29 | 东莞市久磐塑胶有限公司 | Spraying-free flame-retardant uv-resistant plastic, production equipment and processing method |
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| CN114249942A (en) * | 2021-03-04 | 2022-03-29 | 东莞市久磐塑胶有限公司 | Spraying-free flame-retardant uv-resistant plastic, production equipment and processing method |
| CN113004614A (en) * | 2021-03-10 | 2021-06-22 | 重庆嘉良塑胶制品有限责任公司 | Spraying-free polypropylene composite material and preparation method thereof |
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Application publication date: 20170822 |