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High-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material and preparation method thereof

A technology of polypropylene material and talc powder, which is applied in the field of high yield strain low temperature impact resistant talc powder filled polypropylene material and its preparation, and can solve the problems that high yield strain materials are rarely reported.

Active Publication Date: 2021-05-11
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are relatively in-depth studies on yield stress in the industry, but there are few reports on related inventions of high yield strain materials

Method used

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  • High-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material and preparation method thereof
  • High-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material and preparation method thereof
  • High-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material and preparation method thereof

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Embodiment 1-3

[0053] A preparation method of a high-yield-strain low-temperature impact-resistant talcum powder-filled polypropylene material, comprising the following steps:

[0054](1) Weigh 79 parts of nano-calcium carbonate, 10 parts of polypropylene resin, 10 parts of β-nucleating agent, 0.8 part of dispersant, and 0.2 part of antioxidant, and place the above components in a high-speed mixer for 3 minutes after mixing , put it into a twin-screw extruder to extrude and granulate, and get the composite nucleated masterbatch after drying. The temperature of the feeding section of the twin-screw extruder is 120°C, the temperature of the conveying section is 160°C, and the temperature of the melting section is 190°C. The temperature is 180° C., and the screw speed is 150 rpm.

[0055] (2) Put polypropylene resin, polyethylene resin, polyolefin elastomer (POE), talcum powder, composite nucleating masterbatch, stabilizer and toner into the high-speed mixer in the parts by weight shown in Tabl...

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Abstract

The invention provides a high-yield-strain low-temperature-impact-resistant talcum powder filled polypropylene material. The material is prepared from the following raw materials in parts by weight: 45-85 parts of polypropylene resin, 6-15 parts of polyethylene resin, 6-20 parts of polyolefin elastomer (POE), 3-25 parts of talcum powder, 0.5-2 parts of composite nucleating master batch, 0.2-2 parts of a stabilizer and 0.5-2 parts of a toner. The composite nucleating master batch is a compound of nano calcium carbonate, polypropylene resin and a beta-nucleating agent, and comprises 75 to 80 parts of nano calcium carbonate, 8 to 12 parts of polypropylene resin and 5 to 10 parts of beta-nucleating agent. The talcum powder filled polypropylene material with high yield strain and low-temperature impact resistance has high ductility and yield resistance, the yield elongation can reach 10% or above, meanwhile, the polypropylene material has excellent low-temperature toughness, and the low-temperature notch impact strength is larger than 3.5 KJ / m < 2 >.

Description

technical field [0001] The invention relates to the technical field of modified plastics, in particular to a high-yield-strain low-temperature impact-resistant talcum powder-filled polypropylene material and a preparation method thereof. Background technique [0002] With the development of the automobile industry, the proportion of plastics used in auto parts continues to increase, and "replacing steel with plastics" has become a major trend in recent years. Polypropylene (PP) has been widely favored by the automobile industry due to its advantages of low density, low price, good processability, and easy availability of raw materials. It is the most widely used variety of general-purpose plastics in automobiles. Due to the poor toughness of polypropylene resin at low temperature, its products have poor low temperature impact resistance and are easy to be brittle. This feature greatly limits its use in low temperature environments. The development of modified polypropylene ...

Claims

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Application Information

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IPC IPC(8): C08L53/00C08L23/08C08L23/06C08K3/34C08K3/26C08K5/20
CPCC08L53/00C08K2201/011C08K2003/265C08K2201/005C08L2205/025C08L2205/035C08L2207/062C08L2205/242C08L23/0815C08L23/06C08K3/34C08K3/26C08K5/0083C08K5/20
Inventor 张海洋徐昌竹张春怀李欣张栋玮钱文轩李晟
Owner TIANJIN KINGFA NEW MATERIAL
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