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Modified polypropylene material and preparation method thereof

A polypropylene material and polypropylene technology, applied in the field of modified polypropylene material and its preparation to improve the original shortcomings of polypropylene, can solve the problems of poor dimensional stability, poor creep resistance, large shrinkage, etc., and achieve low cost , Improvement of mechanical properties and improvement of mechanical properties

Inactive Publication Date: 2018-06-12
青岛绿谷生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage is poor cold resistance
Low temperature is easy to break, and the shrinkage rate is large, the creep resistance is poor, the dimensional stability of the product is poor, and the variability

Method used

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  • Modified polypropylene material and preparation method thereof
  • Modified polypropylene material and preparation method thereof
  • Modified polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: (1) take each raw material respectively by weight ratio as follows:

[0028] Polypropylene raw material: 150

[0029] Inorganic filler: 25

[0030] Dispersant: 0.5

[0031] Colorant: 0.5

[0032] Flow agent masterbatch: 1.0

[0033] Ethylene-octene copolymer: 1.0

[0034] Diffuser oil: 0.3

[0035] Antioxidant: 0.1

[0036] Coupling agent: 0.5

[0037] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, the fourth zone is 200-205°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa.

[0038] Experimental results:

[0039]

[0040] The above test results show that the performance of the polypropylene modified...

Embodiment 2

[0041] Embodiment 2: (1) take each raw material respectively by weight ratio as follows:

[0042] Polypropylene raw material: 120

[0043] Inorganic filler: 20

[0044] Dispersant: 0.4

[0045] Colorant: 0.4

[0046] Flow agent masterbatch: 0.8

[0047] Ethylene-octene copolymer: 0.8

[0048] Diffuser Oil: 0.2

[0049] Antioxidant: 0.1

[0050] Coupling agent: 0.4

[0051] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, the fourth zone is 200-205°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa.

[0052] Experimental results:

[0053]

[0054] The above test results show that the performance of the polypropylene modified...

Embodiment 3

[0055] Embodiment 3: (1) take each raw material respectively by weight ratio as follows:

[0056] Polypropylene raw material: 180

[0057] Inorganic filler: 30

[0058] Dispersant: 0.6

[0059] Colorant: 0.6

[0060] Flow agent masterbatch: 1.2

[0061] Ethylene-octene copolymer: 1.2

[0062] Diffuser oil: 0.4

[0063] Antioxidant: 0.2

[0064] Coupling agent: 0.6

[0065] (2) First dry mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then put them in a twin-screw extruder to melt and extrude, cool, pelletize, and pack the finished product; wherein, the twin-screw extruder The temperature of the first zone is 90-100°C, the second zone is 150-180°C, the third zone is 200-210°C, the fourth zone is 200-205°C; the fifth zone is 190-200°C, and the residence time is 1-2 minutes , the pressure is 10-15Mpa.

[0066] Experimental results:

[0067]

[0068] The above test results show that the performance of the polypropylene modified...

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PUM

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Abstract

The invention discloses a modified polypropylene material and a preparation method thereof. The modified polypropylene material is mainly used for improving poor cold resistance, low temperature brittleness, high shrinkage rate, poor creep resistance, poor product size stability and mutability. The modified polypropylene material is prepared from the following raw materials in parts by weight: 120to 180 parts of polypropylene, 20 to 30 parts of an inorganic filler, 0.4 to 0.6 part of a dispersing agent, 0.4 to 0.6 part of a colouring agent, 0.8 to 1.2 parts of flowing agent master batches, 0.8 to 1.2 parts of a vinyl-octene copolymer, 0.1 to 0.3 part of dispersing oil, 0.1 to 0.2 part of an antioxidant, and 0.4 to 0.6 part of a coupling agent; the optimal weight parts of raw materials areas follows: 150 parts of the polypropylene, 25 parts of the inorganic filler, 0.5 part of the dispersing agent, 0.5 part of the colouring agent, 1.0 part of the flowing agent master batches, 1.0 partof the vinyl-octene copolymer, 0.3 part of the dispersing oil, 0.1 part of the antioxidant and 0.5 part of the coupling agent. The performance of the modified polypropylene material disclosed by theinvention is obviously improved and enhanced; a preparation process is simple and environmentally friendly; the cost is low.

Description

technical field [0001] The invention belongs to the technical field of polypropylene material production, in particular to a modified polypropylene material which improves the original shortcomings of polypropylene and a preparation method thereof. Background technique [0002] Polypropylene, English name: Polypropylene, abbreviated name PP. Its chemical formula is: (C3H6)N. [0003] Currently, polypropylene resin is a semi-crystalline thermoplastic. It has high impact resistance, strong mechanical properties, and resistance to various organic solvents and acid and alkali corrosion. It is widely used in industry and is one of the common polymer materials. [0004] Although polypropylene has many advantages, there are also some disadvantages. The biggest disadvantage is poor cold resistance. Low temperature is easy to break, and the shrinkage rate is large, the creep resistance is poor, the dimensional stability of the product is poor, and the variability is high. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K13/02C08K3/26C08K3/34C08K5/18
CPCC08L23/12C08L2201/08C08L2203/16C08L2203/18C08L2205/02C08L2205/03C08L23/0815C08L91/06C08K13/02C08K2003/265C08K3/34C08K5/18
Inventor 丁磊
Owner 青岛绿谷生物科技有限公司
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