CN105504524A - Special material for high-impact-strength polypropylene and preparation method thereof - Google Patents
Special material for high-impact-strength polypropylene and preparation method thereof Download PDFInfo
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- CN105504524A CN105504524A CN201610087080.8A CN201610087080A CN105504524A CN 105504524 A CN105504524 A CN 105504524A CN 201610087080 A CN201610087080 A CN 201610087080A CN 105504524 A CN105504524 A CN 105504524A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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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- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Rigid Pipes And Flexible Pipes (AREA)
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Abstract
The inventing discloses a special material for high-impact-strength polypropylene and a preparation method thereof. The special material is prepared from polypropylene, ultra-fine silicon dioxide, ethylene-octylene copolymer, liquid ethylene propylene terpolymer and an anti-oxidization agent in a certain proportion. The preparation method includes the steps that firstly, the raw materials are weighed according to the ratio; secondly, ultra-fine silicon dioxide and liquid ethylene propylene terpolymer are placed in a high-speed mixing machine to be evenly mixed, and modified core-shell structure particles are obtained; thirdly, polypropylene and ethylene-octylene copolymer are firstly placed in a low-speed mixing machine A to be evenly mixed and then placed in a double-screw extruder A to be extruded and granulated, and polypropylene subjected to toughening modification through elastomers is obtained; fourthly, the core-shell structure particles, the polypropylene subjected to toughening modification through the elastomers and the anti-oxidization agent are firstly placed in a low-speed mixing machine B to be evenly mixed and then placed in a double-screw extruder B to be extruded and granulated, and the special material for high-impact-strength polypropylene is obtained. The special material has excellent impact strength, the preparation method of the special material is simple in technological process, and production cost is low.
Description
Technical field
The present invention relates to technical field of polymer composite materials, more specifically relate to a kind of high impact resistance polypropylene PP Pipe Compound and preparation method thereof.
Background technology
Synthesis technique is simple, cheap because having for polypropylene, high comprehensive performance, be easy to the features such as machine-shaping, in daily life and industrial production, be all able to widespread use.But there is shock resistance difference in polypropylene, the particularly shortcoming of low-temperature impact resistance difference.In order to expand polyacrylic range of application further and extend its goods work-ing life, toughening modifying is carried out to polypropylene and seems particularly important.
Because elastomeric resilient is high, and the second-order transition temperature had far below room temperature, elastic body toughening modified polypropene can make polyacrylic low temperature brittleness significantly improve, to be elastomerics cause polypropylene matrix as disperse phase to mechanism produces yield deformation, produces shearing strain and crazing thus reach endergonic object.But interpolation elastomerics can cause polyacrylic rigidity, tensile strength and resistance toheat appearance decline to a certain degree.
The polyacrylic research of rigid inorganic filler toughening is rapidly developed in recent years, but correlative study shows that the respond well polypropylene composite material of toughen and intensify needs to possess following characteristics in microtexture: one is that inorganic rigid particle can be dispersed in polypropylene matrix uniformly; Two is that inorganic rigid particle and polypropylene matrix exist elastic interfacial phase.The inorganic rigid particle that the existing for of elastic interfacial phase has certain deformability and polypropylene matrix provide good interface cohesion, what this was also that inorganic rigid particle can be toughness reinforcing will put place, but the independent inorganic rigid particle that adds carries out toughness reinforcing to polypropylene, although can ensure intensity and the toughness of polypropylene material, the toughening effect of the inorganic rigid particle added to polypropylene material is limited.
Although above-mentioned two kinds of methods carry out toughening modifying to polypropylene serve some effects, often kind of method has certain limitation, can not carry out toughening modifying well to polypropylene.
Summary of the invention
For solving above-mentioned prior art Problems existing, the invention provides a kind of high impact resistance polypropylene PP Pipe Compound and preparation method thereof, this polypropylene dedicated material has excellent shock resistance, effectively can overcome the bottleneck problem of current elastomerics and the existence of rigid inorganic filler toughening modified polypropene.
This preparation method's technical process is simple, and simple to operate, production cost is low.
In order to realize above-mentioned object, the present invention by the following technical solutions:
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
Preferred further:
Described oxidation inhibitor is antioxidant 1010;
The order number of described superfine silicon dioxide is 8000;
The described polypropylene trade mark is M1500;
The described ethylene-octene copolymer trade mark is 8150;
The described liquid terpolymer EP rubber trade mark is CP-1100.
A preparation method for high impact resistance polypropylene PP Pipe Compound, comprises the steps:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and oxidation inhibitor is taken according to above-mentioned proportioning;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer to mix, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A to mix, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and oxidation inhibitor are first placed in low speed mixer B to mix, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
The present invention compared with prior art, has the following advantages and effect:
1, this polypropylene dedicated material with liquid terpolymer EP rubber be shell, superfine silicon dioxide is core nucleocapsid structure particle significantly can improve the dispersiveness of superfine silicon dioxide in polypropylene matrix, liquid terpolymer EP rubber forms elastic interfacial phase between polypropylene and superfine silicon dioxide simultaneously, has given full play to the activeness and quietness effect of superfine silicon dioxide.
2, ethylene-octene copolymer serves the effect of coordination plasticizing together with nucleocapsid structure particle to polypropylene matrix, thus prepared polypropylene dedicated material has excellent shock resistance, also there is good stretch-proof performance simultaneously, higher softening temperature and good processing characteristics.
3, preparation method's technical process of this polypropylene dedicated material is simple, and processing condition are simple and easy to control, and thus production cost is low.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
The source of raw material used in embodiment of the present invention 1-9 is as follows:
Polypropylene is the homo-polypropylene that LG Corp of South Korea is produced, and the trade mark is M1500;
Ethylene-octene copolymer is the product that du pont company produces, and the trade mark is 8150;
Liquid terpolymer EP rubber is the product of SUMITOMO CHEMICAL chemical production, and the trade mark is CP-1100;
Superfine silicon dioxide is the product that Guangzhou Dan Long trade Co., Ltd produces, and order number is 8000, and the trade mark is A90;
Antioxidant 1010 is the product that German BASF stock company produces.
The source of equipment used in embodiment of the present invention 1-9 is as follows:
High-speed mixer: Guangzhou Xu Lang mechanical means company limited produces, and model is XL-20B;
Low speed mixer A: Zhangjagang City hundred million enters Machinery Co., Ltd. and produces, and model is GH-200A;
Low speed mixer B: Zhangjagang City hundred million enters Machinery Co., Ltd. and produces, and model is GH-200A;
Twin screw extruder A: Nanjing Jie Ente dynamo-electric company limited produces, and model is SHJ-60B;
Twin screw extruder B: Nanjing Jie Ente dynamo-electric company limited produces, and model is SHJ-60B.
Embodiment 1
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 2
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 3
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 4
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 5
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 6
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 7
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 8
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer mixing 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
Embodiment 9
A kind of high impact resistance polypropylene PP Pipe Compound, is prepared from by the raw material of following weight part:
The preparation method of above-mentioned high impact resistance polypropylene PP Pipe Compound, the steps include:
1) polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber, superfine silicon dioxide and antioxidant 1010 is taken by said ratio;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer high speed and mix 3 minutes, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A and mix 2 minutes, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and antioxidant 1010 are first placed in low speed mixer B and mix 5 minutes, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
The property indices of high impact resistance polypropylene PP Pipe Compound prepared by testing example 1-9, test result is as shown in the table:
As seen from the above table, the notched Izod impact strength of high impact resistance polypropylene PP Pipe Compound 23 DEG C time that prepared by embodiment 1-9 reaches 34.7kJ/m
2above, the notched Izod impact strength-20 DEG C time reaches 15.7kJ/m
2above, illustrate that high impact resistance polypropylene PP Pipe Compound of the present invention has excellent room temperature shock resistance and low-temperature impact resistance; The tensile strength of high impact resistance polypropylene PP Pipe Compound prepared by embodiment 1-9 reaches more than 26.8MPa, illustrates that high impact resistance polypropylene PP Pipe Compound of the present invention has good stretch-proof performance; The Vicat softening point of high impact resistance polypropylene PP Pipe Compound prepared by embodiment 1-9 reaches more than 138 DEG C, illustrates that high impact resistance polypropylene PP Pipe Compound of the present invention has higher softening temperature; The melting index of high impact resistance polypropylene PP Pipe Compound prepared by embodiment 1-9 is not less than 4.8g/10min, illustrates that high impact resistance polypropylene PP Pipe Compound of the present invention has good processing characteristics.
In sum, high impact resistance polypropylene PP Pipe Compound of the present invention has excellent shock resistance, good stretch-proof performance, higher softening temperature and good processing characteristics.
Claims (6)
1. a high impact resistance polypropylene PP Pipe Compound, is characterized in that being prepared from by the raw material of following weight part:
Polypropylene 60-80 part
Ethylene-octene copolymer 20-40 part
Liquid terpolymer EP rubber 2-4 part
Superfine silicon dioxide 6-8 part
1 part, oxidation inhibitor.
2. high impact resistance polypropylene PP Pipe Compound according to claim 1, is characterized in that:
Polypropylene 60-70 part
Ethylene-octene copolymer 30-40 part
Liquid terpolymer EP rubber 2-3 part
Superfine silicon dioxide 7-8 part
1 part, oxidation inhibitor.
3. high impact resistance polypropylene PP Pipe Compound according to claim 1, is characterized in that:
Polypropylene 70 parts
Ethylene-octene copolymer 30 parts
Liquid terpolymer EP rubber 3 parts
Superfine silicon dioxide 7 parts
1 part, oxidation inhibitor.
4. high impact resistance polypropylene PP Pipe Compound according to claim 1, is characterized in that: described oxidation inhibitor is antioxidant 1010.
5. high impact resistance polypropylene PP Pipe Compound according to claim 1, is characterized in that: the order number of described superfine silicon dioxide is 8000.
6. a preparation method for high impact resistance polypropylene PP Pipe Compound according to claim 1, is characterized in that comprising the steps:
1) according to proportioning according to claim 1 take polypropylene, ethylene-octene copolymer, liquid terpolymer EP rubber,
Superfine silicon dioxide and oxidation inhibitor;
2) superfine silicon dioxide and liquid terpolymer EP rubber are placed in high-speed mixer to mix, the mixing velocity controlling high-speed mixer is 25000r/min, obtains the nucleocapsid structure particle of modification;
3) polypropylene and ethylene-octene copolymer are first placed in low speed mixer A to mix, then twin screw extruder A extruding pelletization is placed in, control twin screw extruder A barrel one district temperature is 150 DEG C, two district's temperature are 180 DEG C, three district's temperature are 190 DEG C, die temperature is 200 DEG C, screw speed is 160r/min, obtains the polypropylene of elastic body toughening modification;
4) polypropylene of nucleocapsid structure particle, elastic body toughening modification and oxidation inhibitor are first placed in low speed mixer B to mix, then twin screw extruder B extruding pelletization is placed in, control twin screw extruder B barrel one district temperature is 160 DEG C, two district's temperature are 185 DEG C, three district's temperature are 195 DEG C, die temperature is 205 DEG C, screw speed is 180r/min, obtains this high impact resistance polypropylene PP Pipe Compound.
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Cited By (1)
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| CN113845733A (en) * | 2021-09-29 | 2021-12-28 | 湖北工程学院 | Waste rubber powder filled polypropylene blending material and preparation method thereof |
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| CN1400252A (en) * | 2001-08-01 | 2003-03-05 | 上海杰事杰新材料股份有限公司 | Modified asphalt composite and its preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113845733A (en) * | 2021-09-29 | 2021-12-28 | 湖北工程学院 | Waste rubber powder filled polypropylene blending material and preparation method thereof |
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