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High-rigidity and high-toughness polypropylene composite material and preparation method thereof

A technology for composite materials and polypropylene, applied in the field of high-rigidity and high-toughness polypropylene composite materials and its preparation, can solve the problems of high crystallinity, poor dimensional stability, and low weather resistance of polypropylene, so as to increase the content of β crystals and improve Effect of impact strength and dispersibility enhancement

Inactive Publication Date: 2019-04-05
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high crystallinity of polypropylene, poor dimensional stability, and low weather resistance, it is more difficult to apply it directly to bumper products.

Method used

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  • High-rigidity and high-toughness polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 40 parts of dry copolymerized polypropylene PP-K9026, 20 parts of talc powder AH51210, 10 parts of reinforcing agent, 24 parts of toughening agent POE 8200, 3 parts of compatibilizer POE-G, and 0.2 parts of nucleating agent according to the weight ratio Masterbatch (Y 2 o 3 : TMB-5=1:1), 0.1 part of antioxidant 1010, 0.1 part of antioxidant DSTDP, 0.2 part of lubricant EBS, 0.3 part of coupling agent KH550, 0.1 part of light stabilizer V703, add the above materials into high-speed mixing Mix evenly in the extruder, then put the evenly mixed mixture into the extruder, and cut into pellets after cooling with water. Among them, the processing temperature of the extruder is 180°C, 190°C, 195°C, 195°C, 200°C, 205°C from the feeding port to the die port, the main engine speed is 180rpm, and the vacuum degree is -0.03MPa.

Embodiment 2

[0040] Weigh 63 parts of dry copolymerized polypropylene PP-BX3920, 10 parts of magnesium sulfate whisker WS-1S2, 10 parts of reinforcing agent, 15 parts of toughening agent EPDM, 2 parts of compatibilizer PP-G, 0.4 parts by weight Part nucleation masterbatch (Y 2 o 3 : TMB-5=1:3), 0.1 part of antioxidant, 0.1 part of antioxidant DSTDP, 0.2 part of antioxidant 168, 0.2 part of lubricant calcium stearate, 0.3 part of coupling agent KH550, 0.3 part of light stabilizer For agent V703, add the above materials into a high-speed mixer and mix them evenly, then add the evenly mixed mixture into the extruder, and cut into pellets after water cooling. Among them, the processing temperature of the extruder is 180°C, 190°C, 195°C, 195°C, 200°C, 205°C from the feeding port to the die port, the speed of the main machine is 200rpm, and the vacuum degree is -0.05MPa.

Embodiment 3

[0042] Weigh 80 parts of dry copolymerized polypropylene PP-K9026, 5 parts of talc powder AH51210, 5 parts of reinforcing agent, 8 parts of toughening agent POE 8200, 2 parts of compatibilizer POE-G, and 1 part of nucleating agent according to the weight ratio Masterbatch (Y 2 o 3 : TMB-5=1:1), 0.1 part of antioxidant 1010, 0.1 part of antioxidant DSTDP, 0.2 part of antioxidant 168, 0.2 part of lubricant EBS, 0.3 part of coupling agent KH550, 0.3 part of light stabilizer V703 , Add the above materials into a high-speed mixer and mix them evenly, then add the evenly mixed mixture into the extruder, and cut into pellets after water cooling. Among them, the processing temperature of the extruder is 180°C, 190°C, 195°C, 195°C, 200°C, 205°C from the feeding port to the die port, the main engine speed is 350rpm, and the vacuum degree is -0.05MPa.

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Abstract

The invention discloses a high-rigidity and high-toughness polypropylene composite material which comprises, by weight, 40-80 parts of co-polypropylene, 5-20 parts of mineral fillers, 3-10 parts of reinforcing agents, 10-25 parts of toughening agents, 0-3 parts of compatilizers, 02-1 parts of nucleation master batch, 0.1-0.5 part of coupling agents, 0.1-0.5 part of antioxidants and 0.1-0.5 part oflubricating agents and light stability agents. The materials are mixed and extruded to prepare the composite material, the nucleation master batch is provided with mixture of nano-scale rare earth oxide Y2O3 and arylamine TMB (tetramethylbenzidine)-5, and the blending weigh ratio is 1:1-1:4. According to the composite material, the co-polypropylene and the mineral fillers, the reinforcing agentsand the toughening agents are compounded, the strength of the composite material is improved, the contraction rate of a resin substrate is reduced, dimensional stability of the material is ensured, and the modified polypropylene composite material can be widely applied to thin-walled automotive interior and exterior decoration products.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a high-rigidity and high-toughness polypropylene composite material and a preparation method thereof. technical background [0002] Polypropylene has the advantages of light weight, high cost performance, easy processing, oil resistance, acid and alkali resistance, etc., making it widely used in various industries. Especially in the automotive industry, lightweight products have been popularized and widely used in major OEMs. At present, the conventional bumper materials are all PP / EPDM product systems, and the product wall thickness is more than 2.7mm. With the advancement of automobile lightweight, various OEMs have put forward new requirements for automobile bumpers, such as low density, high rigidity, dimensional stability, and high fluidity. [0003] Polypropylene material is widely used due to its low density, excellent heat resistance, good...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/08C08L51/06C08L23/16C08K13/06C08K9/10C08K9/06C08K7/20C08K3/34C08K3/22C08K5/134C08K7/08
CPCC08K2003/221C08K2201/011C08L23/14C08L2205/03C08L2205/24C08L2207/02C08L23/0815C08L51/06C08L23/16C08K13/06C08K9/10C08K9/06C08K7/20C08K3/34C08K3/22C08K5/1345C08K7/08
Inventor 杨桂生王华李晓庆朱敏
Owner HEFEI GENIUS NEW MATERIALS
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