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Low temperature impact-resistant polypropylene composition

A technology of polypropylene composition and low temperature resistance, which is applied in the field of polypropylene modification, and can solve the problems of insignificant improvement in impact resistance, failure to meet the needs of safe driving of automobiles, and insufficient impact resistance.

Inactive Publication Date: 2018-03-27
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The publication number is CN 103665570A, which uses dicumyl oxide and polyolefin elastomer to crosslink to obtain XPOE as a toughening agent; CN103087429 B uses hexene and octene as branched multi-branched polyethylene as an inhibitor of crack propagation, improving The low-temperature impact resistance of polypropylene materials, however, the polypropylene composition disclosed in the above-mentioned patent has the defect of insufficient impact resistance, especially the improvement of impact resistance is not obvious under low temperature conditions, which is far from the performance of automobiles at low temperatures. The need for safe driving under conditions

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  • Low temperature impact-resistant polypropylene composition
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Embodiment Construction

[0022] The following examples will further illustrate the present invention through specific implementation methods. The following examples are preferred trial methods of the present invention, but the implementation methods of the present invention are not limited by the following examples.

[0023] raw material

[0024] Polypropylene resin, copolymerized polypropylene resin, PP BX3800, produced by SK Company in South Korea, with a melt mass flow rate of 28.4 g / 10min at 190°C and a load of 2.16 Kg according to ISO1133 standard;

[0025] Hydrogenated styrene-butadiene block copolymer SEBS, produced by Kraton;

[0026] Polyolefin elastomer POE with a melt mass flow rate of 1 g / 10min and a density of 0.87 g / cm 3 :

[0027] Ethylene-octene copolymer, produced from Dow company;

[0028] Filler, talcum powder TYT-777A, produced by Beihai Group;

[0029] Pigment, carbon black M717, produced by CABOT company;

[0030] Antioxidant: hindered phenolic antioxidant 1010, phosphite an...

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Abstract

The invention discloses a low temperature impact-resistant polypropylene composition. The low temperature-resistant impact-resistant polypropylene composition comprises, by weight, 40 to 75 parts of polypropylene resin, 5 to 20 parts of a hydrogenated styrene-butadiene block copolymer SEBS and 5 to 25 parts of a polyolefin elastomer POE. Through use of the hydrogenated styrene-butadiene block copolymer SEBS and the polyolefin elastomer POE in specific weight contents in the low temperature-resistant impact-resistant polypropylene composition, the impact resistance and low temperature impact resistance of the composition are improved. A sample prepared from the composition has Charpy notched impact strength of greater than 5.0 KJ / m<2> after standing at -30 DEG C for 4h and has good rigidity.

Description

technical field [0001] The invention relates to the modification of polypropylene, in particular to a low-temperature impact-resistant polypropylene composition. Background technique [0002] Polypropylene is the most widely used variety of automotive plastics. It has the characteristics of low density, good performance, and easy processing, and has become the most widely used variety of automotive plastics. However, the impact resistance of polypropylene is poor at low temperature. When the car is in cold weather, the polypropylene plastic will be deformed, which will affect the driving safety and the appearance of the car. In order to improve the low temperature toughness of polypropylene, elastomers are often added for toughening. The publication number is CN 103665570A, which uses dicumyl oxide and polyolefin elastomer crosslinked to obtain XPOE as a toughening agent; CN103087429 B uses hexene and octene as branched multi-branched polyethylene as an inhibitor of crack p...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L53/02C08L23/08C08K13/02C08K3/34C08K5/134C08K5/526
Inventor 雷亮周英辉苏娟霞孙刚谢正瑞吴国峰杨波罗忠富
Owner KINGFA SCI & TECH CO LTD
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