CN108912717A - A kind of regenerated plastics and preparation method thereof - Google Patents
A kind of regenerated plastics and preparation method thereof Download PDFInfo
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- CN108912717A CN108912717A CN201810633733.7A CN201810633733A CN108912717A CN 108912717 A CN108912717 A CN 108912717A CN 201810633733 A CN201810633733 A CN 201810633733A CN 108912717 A CN108912717 A CN 108912717A
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- C08L101/00—Compositions of unspecified macromolecular compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- 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
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- 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
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- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/13—Phenols; Phenolates
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Abstract
The invention discloses a kind of regenerated plastics, each component including following mass percentage：Waste plastic 60-75%, waste old ceramics powder 10-15%, coupling agent 0.5-2%, monoglyceride 0.1-0.5%, floating bead 5-10%, SBS 2-4%, maleic anhydride grafted ethene-propylene copolymer 3-5%, 4- methyl pyrocatechol 1-2%, ammonium ferric sulfate 2-3%, phthalic acid ester 1-3%.The present invention is mixed by the way that 4- methyl pyrocatechol, ammonium ferric sulfate, floating bead is added with other raw materials, ceramic powder surface can be carried out sufficiently modified, reduce the difference between polyolefin plastics and ceramic powder, the compatibility of ceramic powder and plastics is good, interfacial adhesion is strong, final gained regenerated plastics are compared with pure plastic substrate, and rigidity and toughness improve simultaneously, and wearability, durability, corrosion resistance and heat resistance, which have, to be obviously improved.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of regenerated plastics and preparation method thereof.
Background technique
Toughness and rigidity are two important mechanical index of plastics, how to obtain the plastics of rigid and tough sexual balance always
It is the problem that people face.Up to the present, it is mostly by the way that glass fibre, carbon fiber, ceramic powder is added that general enhancing is modified
Fillers are waited to achieve the purpose that increase material stiffness and intensity.Although industrially being achieved with these filler reinforced plastics very big
Success, but be difficult to overcome the problems, such as there are still some, as toughness, the processing performance of material have drop by a relatively large margin
It is low, the rigidity of plastics is improved simultaneously and toughness is very difficult.There is presently no occur reaching using ceramic powder as modifying agent
To this purpose.
In the composite, due to the interaction between reinforcing material and substrate material surface, shape between two surfaces
It is different from the boundary layer of reinforcing material and basis material at a structure and performance, it is the tie and transmitting information of material connection
Bridge, be influence composite material key factor.The chemical property difference of ceramic powder and polyolefin plastics is very big, between the two
Poor compatibility.In the composite material that ceramic powder and polyolefin plastics are simply filled with, mechanical property is poor.In order to be made
The composite material of good mechanical properties, it is necessary to according to the difference of ceramic powder and polyolefin plastics surface characteristic, select coupling agent pair
Ceramic powder surface is handled, and to improve the caking property between ceramic powder and polyolefin plastics, obtains ideal clad.But
It is that existing coupling agent is modified ceramic powder surface, and modified effect is undesirable, expected purpose cannot be reached, especially
It is that its due effect is lost in polyolefins matrix.
Application number 02116814.8 discloses a kind of plastic alloy, it is made according to a conventional method of following weight proportion raw material
, raw material is polypropylene, high density polyethylene (HDPE), thermoplastic elastomer (TPE), calcium carbonate, antioxidant lubricant, stabilizer, coupling agent,
Plasticizer, UV resistant agent, nano montmorillonite or nanoclay or nano-ceramic powder.Plastic alloy intensity obtained in the invention
It is all lower with toughness, and the wetability between plastics and fiber, the two cannot be improved well with coupling agent modified ceramic powder
Between interfacial adhesion it is weaker, the performance of finally obtained plastics is poor.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of regenerated plastics and preparation method thereof.
The present invention provides a kind of regenerated plastics, each component including following mass percentage：Waste plastic 60-
75%, waste old ceramics powder 10-15%, coupling agent 0.5-2%, monoglyceride 0.1-0.5%, floating bead 5-10%, SBS 2-4%, horse
Maleic anhydride grafted ethylene-propylene copolymer 3-5%, 4- methyl pyrocatechol 1-2%, ammonium ferric sulfate 2-3%, phthalic acid ester
1-3%.
Preferably, the regenerated plastics include each component of following mass percentage：Waste plastic 65%, waste old ceramics
Powder 10%, coupling agent 1%, monoglyceride 0.3%, floating bead 7.7%, SBS 4%, maleic anhydride grafted ethene-propylene copolymer
5%, 4- methyl pyrocatechol 1%, ammonium ferric sulfate 3%, phthalic acid ester 3%.
Preferably, the waste plastic is machine oil pot, liquid detergent bottle, Shampoo bottle, Medical transfusion bottle, doll Kazakhstan bottle, combustion
It is one or more of in tracheae broken material.
Preferably, the waste old ceramics powder is silicon nitride, in silicon carbide, silica, talcum powder, aluminium oxide, zirconium oxide
One or more.
Preferably, the coupling agent is organic metal esters.
Preferably, the coupling agent is titanate coupling agent.
The present invention also provides a kind of preparation methods of regenerated plastics, include the following steps：
1) waste old ceramics powder, coupling agent, monoglyceride, floating bead are added in mixing machine in the ratio and are mixed, mixing temperature
Degree is 80-100 DEG C, obtains mixture after being sufficiently mixed；
2) by after drying waste plastic and SBS in the ratio be added to the mixer mixing, mixing temperature is
110-120 DEG C, it is warming up to 130-140 DEG C after being sufficiently mixed, mixture, maleic anhydride grafted ethene-that step 1) obtains is added
Propylene copolymer, 4- methyl pyrocatechol, ammonium ferric sulfate and phthalic acid ester are sufficiently mixed, and obtain mixture；
3) mixture for obtaining step 2), which is placed in double screw extruder, carries out extruding pelletization to get regenerated plastics.
Preferably, the step 1) incorporation time is 20-30min.
Preferably, the revolving speed of twin-screw is 350-400r/min in the step 3) double screw extruder.
Preferably, nine areas by the setting of feedstock direction sequence are shared in the step 3) double screw extruder, each area
Temperature is controlled as：One 310-340 DEG C of area, 260-300 DEG C of 2nd area, 240-270 DEG C of 3rd area, 220-250 DEG C of 4th area, 5th area
220-250 DEG C, 180-210 DEG C of 6th area, 180-210 DEG C of 7th area, 190-220 DEG C of 8th area, 180-200 DEG C of 9th area.
Coupling agent of the present invention is preferably titanate coupling agent, most preferably titanate coupling agent 201, chemical name
For isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters.
The fineness of floating bead of the present invention is 100-400 mesh.
SBS of the present invention is Styrene-Butadiene-Styrene Block Copolymer.
Recycled plastic of the present invention is polyethylene recycled plastic.
Since ceramic powder surface is than more uniform, surface functional group is also relatively uniform, and its is cheap, therefore common pottery
Porcelain powder is that reinforcement prepares regenerated plastics.But since ceramic powder surface has more silanol group, polarity is larger, and plastics
Polarity is smaller, and ceramic powder is rigidly larger, the difference between plastics so that between the two with poor dispersibility and
Surface adhesion further affects the properties of plastics.It is simply filled in ceramic powder and polyolefin plastics compound
Material, mechanical property are poor.In order to which the composite material of good mechanical properties is made, it is necessary to according to ceramic powder and polyolefin plastics
The difference of surface characteristic selects coupling agent to handle ceramic powder surface, to improve between ceramic powder and polyolefin plastics
Caking property obtains ideal clad.But existing coupling agent is modified ceramic powder surface, modified effect is paid no attention to
Think, expected purpose cannot be reached, its due effect is especially lost in polyolefins matrix.
The present invention is mixed by the way that 4- methyl pyrocatechol, ammonium ferric sulfate, floating bead is added with other raw materials, can be to ceramic powder
Body surface face be sufficiently modified, the difference between reduction polyolefin plastics and ceramic powder, and the compatibility of ceramic powder and plastics is good, boundary
The case where face cohesive force is strong, avoids the occurrence of and individually uses coupling agent treatment ceramic powder surface, and can not achieve the desired results, final institute
Regenerated plastics are obtained compared with pure plastic substrate, rigidity and toughness improve simultaneously, and rigidity and the toughness for solving existing plastics are difficult
The problem of to meet the market demand simultaneously, and the wearability of gained regenerated plastics, durability, corrosion resistance and heat resistance have
It is obviously improved.
In preparation process of the invention, first waste old ceramics powder and coupling agent, monoglyceride, floating bead are mixed, then with it is waste and old
The mixture and maleic anhydride grafted ethene-propylene copolymer of plastics and SBS, 4- methyl pyrocatechol, ammonium ferric sulfate and adjacent benzene
Dicarboxylic acid esters mix at 130-140 DEG C, and extruding pelletization obtains regenerated plastics.Pass through the addition sequence and addition temperature of feed change
Degree, so that ceramic powder and frosting modification are more abundant, the difference between plastics and ceramic powder reduces, and mixing is equal between raw material
Even, interface adhesion is strong, and production cost reduces, and high production efficiency, gained regenerated plastics are had excellent performance.
The beneficial effects of the invention are as follows：
1, the present invention is mixed by the way that 4- methyl pyrocatechol, ammonium ferric sulfate, floating bead is added with other raw materials, can be to ceramics
Powder surface be sufficiently modified, the difference between reduction polyolefin plastics and ceramic powder, and the compatibility of ceramic powder and plastics is good,
Interfacial adhesion is strong, and compared with pure plastic substrate, rigidity and toughness improve final gained regenerated plastics simultaneously, wearability, resistance to
Long property, corrosion resistance and heat resistance, which have, to be obviously improved.
2, in preparation process of the invention, first waste old ceramics powder and coupling agent, monoglyceride, floating bead are mixed, then with it is useless
The mixture and maleic anhydride grafted ethene-propylene copolymer of old plastics and SBS, 4- methyl pyrocatechol, ammonium ferric sulfate and neighbour
Phthalic acid ester mixes at 130-140 DEG C, and extruding pelletization obtains regenerated plastics.Addition sequence and addition by feed change
Temperature, so that ceramic powder and frosting modification are more abundant, the difference between plastics and ceramic powder reduces, and mixing is equal between raw material
Even, interface adhesion is strong, and production cost reduces, and high production efficiency, gained regenerated plastics are had excellent performance.
3, the present invention has sufficiently achieved the innoxious benefit of waste using waste plastic and waste old ceramics powder as primary raw material
With having many advantages, such as that environmental protection, economy, raw material sources are extensive.
4, preparation method of the invention is simple, low for equipment requirements, high production efficiency, is uniformly mixed between raw material, production
Low energy consumption, at low cost.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this hair
Bright further description.
Embodiment 1
A kind of regenerated plastics, each component including following mass percentage：Waste plastic 75%, waste old ceramics powder
10%, titanate coupling agent 201 0.5%, monoglyceride 0.5%, floating bead 5%, SBS 2%, maleic anhydride grafted ethene-propylene
Copolymer 3%, 4- methyl pyrocatechol 1%, ammonium ferric sulfate 2%, phthalic acid ester 1%；Wherein the fineness of floating bead is 100-
200 mesh.
Preparation method：1) waste old ceramics powder, coupling agent, monoglyceride, floating bead are added in mixing machine in the ratio and are mixed
1.5h is closed, mixing temperature is 80 DEG C, obtains mixture after being sufficiently mixed；
2) by after drying waste plastic and SBS in the ratio be added to the mixer mixing 40min, mixing temperature
It is 110 DEG C, 140 DEG C is warming up to after being sufficiently mixed, it is total that mixture, maleic anhydride grafted ethene-propylene that step 1) obtains is added
Polymers, 4- methyl pyrocatechol, ammonium ferric sulfate and phthalic acid ester are sufficiently mixed 20min, obtain mixture；
3) mixture for obtaining step 2), which is placed in double screw extruder, carries out extruding pelletization, water cooled pelletizing, then puts
Enter to dry 4-6h at 80-110 DEG C in drying machine up to regenerated plastics；Wherein the revolving speed of twin-screw is in double screw extruder
350-400r/min, nine areas by the setting of feedstock direction sequence are shared in double screw extruder, and the temperature in each area controls respectively
For：One 310 DEG C of area, 260 DEG C of 2nd area, 240 DEG C of 3rd area, 220 DEG C of 4th area, 220 DEG C of 5th area, 180 DEG C of 6th area, 180 DEG C of 7th area, 8th area
190 DEG C, 180 DEG C of 9th area.
Embodiment 2
A kind of regenerated plastics, each component including following mass percentage：Waste plastic 65%, waste old ceramics powder
10%, titanate coupling agent 201 1%, monoglyceride 0.3%, floating bead 7.7%, SBS 4%, maleic anhydride grafted ethene-propylene
Copolymer 5%, 4- methyl pyrocatechol 1%, ammonium ferric sulfate 3%, phthalic acid ester 3%；Wherein the fineness of floating bead is 200-
300 mesh.
Preparation method：1) waste old ceramics powder, coupling agent, monoglyceride, floating bead are added in mixing machine in the ratio and are mixed
1.5h is closed, mixing temperature is 90 DEG C, obtains mixture after being sufficiently mixed；
2) by after drying waste plastic and SBS in the ratio be added to the mixer mixing 50min, mixing temperature
It is 120 DEG C, 140 DEG C is warming up to after being sufficiently mixed, it is total that mixture, maleic anhydride grafted ethene-propylene that step 1) obtains is added
Polymers, 4- methyl pyrocatechol, ammonium ferric sulfate and phthalic acid ester are sufficiently mixed 20min, obtain mixture；
3) mixture for obtaining step 2), which is placed in double screw extruder, carries out extruding pelletization, water cooled pelletizing, then puts
Enter to dry 4-6h at 80-110 DEG C in drying machine up to regenerated plastics；Wherein the revolving speed of twin-screw is in double screw extruder
350-400r/min, nine areas by the setting of feedstock direction sequence are shared in double screw extruder, and the temperature in each area controls respectively
For：One 320 DEG C of area, 280 DEG C of 2nd area, 260 DEG C of 3rd area, 240 DEG C of 4th area, 240 DEG C of 5th area, 200 DEG C of 6th area, 200 DEG C of 7th area, 8th area
200 DEG C, 200 DEG C of 9th area.
Embodiment 3
A kind of regenerated plastics, each component including following mass percentage：Waste plastic 60%, waste old ceramics powder
15%, titanate coupling agent 201 2%, monoglyceride 0.1%, floating bead 10%, SBS 3%, maleic anhydride grafted ethene-propylene is total
Polymers 3.5%, 4- methyl pyrocatechol 2%, ammonium ferric sulfate 2.4%, phthalic acid ester 2%；Wherein the fineness of floating bead is
300-400 mesh.
Preparation method：1) waste old ceramics powder, coupling agent, monoglyceride, floating bead are added in mixing machine in the ratio and are mixed
1h is closed, mixing temperature is 100 DEG C, obtains mixture after being sufficiently mixed；
2) by after drying waste plastic and SBS in the ratio be added to the mixer mixing 30min, mixing temperature
It is 120 DEG C, 130 DEG C is warming up to after being sufficiently mixed, it is total that mixture, maleic anhydride grafted ethene-propylene that step 1) obtains is added
Polymers, 4- methyl pyrocatechol, ammonium ferric sulfate and phthalic acid ester are sufficiently mixed 30min, obtain mixture；
3) mixture for obtaining step 2), which is placed in double screw extruder, carries out extruding pelletization, water cooled pelletizing, then puts
Enter to dry 4-6h at 80-110 DEG C in drying machine up to regenerated plastics；Wherein the revolving speed of twin-screw is in double screw extruder
350-400r/min, nine areas by the setting of feedstock direction sequence are shared in double screw extruder, and the temperature in each area controls respectively
For：One 340 DEG C of area, 300 DEG C of 2nd area, 270 DEG C of 3rd area, 250 DEG C of 4th area, 250 DEG C of 5th area, 210 DEG C of 6th area, 210 DEG C of 7th area, 8th area
220 DEG C, 200 DEG C of 9th area.
Comparative example 1
A kind of regenerated plastics, each component including following mass percentage：Waste plastic 68%, waste old ceramics powder
11%, titanate coupling agent 201 1%, monoglyceride 0.3%, floating bead 7.7%, SBS 4%, maleic anhydride grafted ethene-propylene
Copolymer 5%, phthalic acid ester 3%；Wherein the fineness of floating bead is 200-300 mesh.
Preparation method：1) waste old ceramics powder, coupling agent, monoglyceride, floating bead are added in mixing machine in the ratio and are mixed
1.5h is closed, mixing temperature is 90 DEG C, obtains mixture after being sufficiently mixed；
2) by after drying waste plastic and SBS in the ratio be added to the mixer mixing 50min, mixing temperature
It is 120 DEG C, 140 DEG C is warming up to after being sufficiently mixed, it is total that mixture, maleic anhydride grafted ethene-propylene that step 1) obtains is added
Polymers and phthalic acid ester are sufficiently mixed 20min, obtain mixture；
3) mixture for obtaining step 2), which is placed in double screw extruder, carries out extruding pelletization, water cooled pelletizing, then puts
Enter to dry 4-6h at 80-110 DEG C in drying machine up to regenerated plastics；Wherein the revolving speed of twin-screw is in double screw extruder
350-400r/min, nine areas by the setting of feedstock direction sequence are shared in double screw extruder, and the temperature in each area controls respectively
For：One 320 DEG C of area, 280 DEG C of 2nd area, 260 DEG C of 3rd area, 240 DEG C of 4th area, 240 DEG C of 5th area, 200 DEG C of 6th area, 200 DEG C of 7th area, 8th area
200 DEG C, 200 DEG C of 9th area.
Comparative example 2
A kind of regenerated plastics, each component including following mass percentage：Waste plastic 70%, waste old ceramics powder
12.7%, titanate coupling agent 201 1%, monoglyceride 0.3%, SBS 4%, maleic anhydride grafted ethene-propylene copolymer
5%, 4- methyl pyrocatechol 1%, ammonium ferric sulfate 3%, phthalic acid ester 3%.
Preparation method：1) waste old ceramics powder, coupling agent, monoglyceride, floating bead are added in mixing machine in the ratio and are mixed
1.5h is closed, mixing temperature is 90 DEG C, obtains mixture after being sufficiently mixed；
2) by after drying waste plastic and SBS in the ratio be added to the mixer mixing 50min, mixing temperature
It is 120 DEG C, 140 DEG C is warming up to after being sufficiently mixed, it is total that mixture, maleic anhydride grafted ethene-propylene that step 1) obtains is added
Polymers, 4- methyl pyrocatechol, ammonium ferric sulfate and phthalic acid ester are sufficiently mixed 20min, obtain mixture；
3) mixture for obtaining step 2), which is placed in double screw extruder, carries out extruding pelletization, water cooled pelletizing, then puts
Enter to dry 4-6h at 80-110 DEG C in drying machine up to regenerated plastics；Wherein the revolving speed of twin-screw is in double screw extruder
350-400r/min, nine areas by the setting of feedstock direction sequence are shared in double screw extruder, and the temperature in each area controls respectively
For：One 320 DEG C of area, 280 DEG C of 2nd area, 260 DEG C of 3rd area, 240 DEG C of 4th area, 240 DEG C of 5th area, 200 DEG C of 6th area, 200 DEG C of 7th area, 8th area
200 DEG C, 200 DEG C of 9th area.
Comparative example 3
A kind of regenerated plastics, each component including following mass percentage：Waste plastic 65%, waste old ceramics powder
10%, titanate coupling agent 201 1%, monoglyceride 0.3%, floating bead 7.7%, SBS 4%, maleic anhydride grafted ethene-propylene
Copolymer 5%, 4- methyl pyrocatechol 1%, ammonium ferric sulfate 3%, phthalic acid ester 3%；Wherein the fineness of floating bead is 200-
300 mesh.
Preparation method：1) all raw materials are added to the mixer and are sufficiently mixed, mixing temperature is 140 DEG C, obtains mixture；
2) mixture for obtaining step 1), which is placed in double screw extruder, carries out extruding pelletization to get modified plastics；Its
The revolving speed of twin-screw is 350-400r/min in middle double screw extruder, shares in dual-screw pelletizer and sets by feedstock direction sequence
Ten areas set, the temperature in each area are controlled as：One 160 DEG C of area, 170 DEG C of 2nd area, 175 DEG C of 3rd area, 175 DEG C of 4th area, 5th area
180 DEG C, 180 DEG C of 6th area, 180 DEG C of 7th area, 180 DEG C of 8th area, 180 DEG C of 9th area, 180 DEG C of tenth area.
By the obtained regenerated plastics of embodiment 1-3 and comparative example 1-3 and unmodified PE plastics, method according to national standards
Under conditions of identical, its mechanical property is surveyed, as a result such as table 1.Wherein tensile strength and Rockwell hardness characterize the rigid of plastics
Property, the toughness of elongation at break and notch impact strength characterization plastics.
The performance of 1 plastics of table compares
From the data in upper table it is found that the regenerated plastics that use raw material and preparation method of the invention to obtain and comparative example with
And unmodified PE plastics are compared, tensile strength with higher and Rockwell hardness, while again higher elongation at break and
Notch impact strength illustrates that the rigidity for the regenerated plastics that the present invention obtains and toughness are all significantly improved.With 1 phase of comparative example
Than the present invention gained tensile strength of regenerated plastics, Rockwell hardness, elongation at break and notch impact strength are higher, explanation
Rigidity and the toughness that regenerated plastics obtained by 4- methyl pyrocatechol and ammonium ferric sulfate are not added are all poor；Compared with comparative example 2, this
Tensile strength, Rockwell hardness, elongation at break and the notch impact strength for inventing gained regenerated plastics are higher, illustrate not to be added
The rigidity and toughness of regenerated plastics obtained by floating bead are all poor；Compared with comparative example 3, the stretching of present invention gained regenerated plastics is strong
Degree, Rockwell hardness, elongation at break and notch impact strength are higher, illustrate the regeneration obtained using preparation method of the invention
The rigidity and toughness of plastics are all preferable, and the present invention passes through the addition sequence of feed change and temperature is added, so that ceramic powder and modeling
Expect that surface modification is more abundant, the difference between plastics and ceramic powder reduces, and is uniformly mixed between raw material, and interface adhesion is strong, raw
Producing cost reduces, and high production efficiency, gained regenerated plastics are had excellent performance.
Claims (10)
1. a kind of regenerated plastics, which is characterized in that each component including following mass percentage：Waste plastic 60-75% gives up
Old ceramic powder 10-15%, coupling agent 0.5-2%, monoglyceride 0.1-0.5%, floating bead 5-10%, SBS 2-4%, maleic anhydride connect
Branch ethylene-propylene copolymer 3-5%, 4- methyl pyrocatechol 1-2%, ammonium ferric sulfate 2-3%, phthalic acid ester 1-3%.
2. regenerated plastics as described in claim 1, which is characterized in that each component including following mass percentage：It is waste and old
Plastics 65%, waste old ceramics powder 10%, coupling agent 1%, monoglyceride 0.3%, floating bead 7.7%, SBS 4%, maleic anhydride grafting
Ethylene-propylene copolymer 5%, 4- methyl pyrocatechol 1%, ammonium ferric sulfate 3%, phthalic acid ester 3%.
3. regenerated plastics as described in claim 1, which is characterized in that the waste plastic is machine oil pot, liquid detergent bottle, hair washing
Water bottle, Medical transfusion bottle, doll breathe out bottle, one or more of in fuel gas conduit broken material.
4. regenerated plastics as claimed in claim 1 or 2, which is characterized in that the waste old ceramics powder be silicon nitride, silicon carbide,
One or more of silica, talcum powder, aluminium oxide, zirconium oxide.
5. regenerated plastics as claimed in claim 1 or 2, which is characterized in that the coupling agent is organic metal esters.
6. regenerated plastics as claimed in claim 5, which is characterized in that the coupling agent is titanate coupling agent.
7. a kind of preparation method of regenerated plastics as described in claim 1, which is characterized in that include the following steps：
1) waste old ceramics powder, coupling agent, monoglyceride, floating bead are added in mixing machine in the ratio and are mixed, mixing temperature is
80-100 DEG C, mixture is obtained after being sufficiently mixed；
2) by after drying waste plastic and SBS in the ratio be added to the mixer mixing, mixing temperature 110-120
DEG C, it is warming up to 130-140 DEG C after being sufficiently mixed, mixture, maleic anhydride grafted ethene-propylene copolymerization that step 1) obtains is added
Object, 4- methyl pyrocatechol, ammonium ferric sulfate and phthalic acid ester are sufficiently mixed, and obtain mixture；
3) mixture for obtaining step 2), which is placed in double screw extruder, carries out extruding pelletization to get regenerated plastics.
8. the preparation method of regenerated plastics as claimed in claim 7, which is characterized in that the step 1) incorporation time is 20-
30min。
9. the preparation method of regenerated plastics as claimed in claim 7, which is characterized in that in the step 3) double screw extruder
The revolving speed of twin-screw is 350-400r/min.
10. the preparation method of regenerated plastics as claimed in claim 7, which is characterized in that the step 3) double screw extruder
In share nine areas by the setting of feedstock direction sequence, the temperature in each area is controlled as：One 310-340 DEG C of area, two area 260-
300 DEG C, 240-270 DEG C of 3rd area, 220-250 DEG C of 4th area, 220-250 DEG C of 5th area, 180-210 DEG C of 6th area, 180-210 DEG C of 7th area,
Eight 190-220 DEG C of areas, 180-200 DEG C of 9th area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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