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Low-odor impact-resistant scratch-resistant polypropylene composition and preparation method thereof

A polypropylene composition and scratch-resistant technology, applied in the field of plastics, can solve the problems of low molecular weight, harm to health, precipitation of additives into water, etc.

Active Publication Date: 2021-04-27
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, during the polymerization, processing, storage and use of polypropylene pipes, volatile organic compounds will inevitably be generated, which will cause these volatile organic compounds to migrate to water and endanger people's health
[0003] At present, the method to improve the scratch resistance of polypropylene is mainly to add scratch resistance additives, but the molecular weight of the commercially available scratch resistance additives is low, and there is a problem that the additives will precipitate into the water as the use time prolongs

Method used

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  • Low-odor impact-resistant scratch-resistant polypropylene composition and preparation method thereof
  • Low-odor impact-resistant scratch-resistant polypropylene composition and preparation method thereof

Examples

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Embodiment 1～6

[0044] Examples 1-6 are used to illustrate the low-odor, impact-resistant and scratch-resistant polypropylene composition and the preparation method of the present invention. Put the nucleating agent, octaisobutylsilsesquioxane, hydrophobic fumed silica and antioxidant into a high-speed mixer, and stir for 2 minutes at a speed of 300 rpm to fully mix the components Obtain the mixture; then mix the obtained mixture with the random copolymerized polypropylene sample and the polypropylene graft polymer, and then pass the above mixed material through the BUSS mixing unit (MKD- 30, Switzerland BUSS company), under the condition of keeping vacuum degree-0.08MPa extrusion granulation, obtain the polypropylene resin composition of low odor anti-impact and anti-scratch. Its specific formula is shown in Table 1, wherein the content of each component is calculated in parts by weight. The extruded pellets were dried in a constant temperature oven at 80°C for 2 hours, and then various tes...

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Abstract

The invention relates to a low-odor impact-resistant scratch-resistant polypropylene composition and a preparation method thereof, belonging to the field of plastics. The low-odor, impact-resistant and scratch-resistant polypropylene composition can comprise the following blended components in parts by weight: polypropylene, hydrophobic fumed silica, a polypropylene graft polymer and octaisobutyl silsesquioxane, the material comprises the following components in parts by weight: 100 parts of polypropylene, 0.5-18 parts of hydrophobic fumed silica, 0.5-24 parts of polypropylene graft polymer and 0.02-2 parts of octaisobutyl silsesquioxane. The odor of the polypropylene resin composition disclosed by the invention can be remarkably reduced, the odor can reach 3.5 grade or below, the scratch resistance is greatly improved, the rigidity is improved while the impact property is improved, the defects in the prior art are well overcome, and the polypropylene resin composition is simple and reliable in operation process, relatively low in investment cost and suitable for the field of pipes.

Description

technical field [0001] The invention relates to the field of plastics, in particular to a low-odor, impact-resistant and scratch-resistant polypropylene composition and a preparation method thereof. Background technique [0002] Polypropylene (PP) has been widely used in various fields of people's life because of its excellent comprehensive properties, wide range of sources, high quality and low price. In recent years, polypropylene has developed rapidly, especially with the rapid development of industries such as automobiles, home appliances, information, machinery, and chemicals, the demand for polypropylene is also increasing. Among plastic pipes, polypropylene pipes have many advantages such as non-toxicity, no rust, and no scaling. In addition, polypropylene pipes also have excellent high temperature resistance, and the temperature of the piped water can be as high as 100°C. At present, PP pipes are mainly divided into three types: random copolymer polypropylene (PP-R)...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L51/06C08L83/04C08K13/04C08K5/526C08K7/26C08K5/20
CPCC08L23/14C08L2203/18C08L2207/14C08L2205/03C08L2205/08C08L51/06C08L83/04C08K13/04C08K5/526C08K7/26C08K5/20
Inventor 康鹏金滟蔡涛石胜鹏董穆
Owner CHINA PETROLEUM & CHEM CORP
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