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A kind of low-odor impact-resistant and 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 precipitation of additives into water, harm to health, low molecular weight, etc., and achieve the effects of reduced odor, improved scratch resistance, and low investment cost

Active Publication Date: 2022-07-12
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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  • A kind of low-odor impact-resistant and scratch-resistant polypropylene composition and preparation method thereof
  • A kind of low-odor impact-resistant and scratch-resistant polypropylene composition and preparation method thereof

Examples

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Embodiment 1～6

[0044] Examples 1 to 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, octaisobutyl silsesquioxane, hydrophobic fumed silica and antioxidant into a high-speed mixer, and stir at 300 rpm for 2 minutes to fully mix the components Obtain the mixture; then mix the obtained mixture with the random copolymer polypropylene sample and the polypropylene graft polymer uniformly, and then pass the above mixture through a BUSS mixing unit (MKD- 30, Swiss BUSS Company), extrude and granulate under the condition of maintaining vacuum degree -0.08MPa to obtain low-odor impact-resistant scratch-resistant polypropylene resin composition. Its specific formula is shown in Table 1, wherein the content of each component is in parts by weight. The extruded pellets were dried in a constant temperature oven at 80°C for 2 hours, and then various tests were carried out. T...

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Abstract

The invention relates to a low-odor impact-resistant and scratch-resistant polypropylene composition in the field of plastics and a preparation method thereof. The low-odor, impact-resistant and scratch-resistant polypropylene composition may include the following components in parts by weight: polypropylene, hydrophobic fumed silica, polypropylene graft polymer, octaiso Butyl silsesquioxane; 100 parts by weight of polypropylene, 0.5-18 parts by weight of hydrophobic fumed silica, 0.5-24 parts by weight of polypropylene graft polymer, and 0.02-24 parts by weight of octaisobutyl silsesquioxane 2 parts by weight; the odor of the polypropylene resin composition of the present invention can be significantly reduced, the odor can reach below grade 3.5, the scratch resistance performance is greatly improved, the impact performance is improved and the rigidity is increased, and the problem of the prior art is well solved. In addition, the operation process is simple and reliable, the input cost is low, and it is suitable for the field of pipes.

Description

technical field [0001] The invention relates to the field of plastics, and more particularly, 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 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 performance of high temperature resistance, and the water temperature of pipeline transportation can be as high as 100 ℃. At present, PP pipes are mainly divided into three types: random co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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