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Polypropylene-based chlorine element/polybrominated diphenyl ether/heavy metal mixed standard sample and preparation method thereof

A technology of polypropylene-based chlorine elements and polybrominated diphenyl ethers, applied in the preparation of test samples, plastic recycling, recycling technology, etc., can solve problems such as uneven dispersion, poor appearance of standard products, and uneven content

Active Publication Date: 2021-05-18
NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of uneven dispersion, non-uniform content and poor appearance of standard products described in the above-mentioned prior art, the present invention provides a preparation method of a mixed standard sample of polypropylene-based chlorine element, polybrominated diphenyl ether and heavy metal

Method used

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  • Polypropylene-based chlorine element/polybrominated diphenyl ether/heavy metal mixed standard sample and preparation method thereof
  • Polypropylene-based chlorine element/polybrominated diphenyl ether/heavy metal mixed standard sample and preparation method thereof
  • Polypropylene-based chlorine element/polybrominated diphenyl ether/heavy metal mixed standard sample and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0045] Embodiment 1 provides a kind of polypropenyl chlorine element, polybrominated diphenyl ether and heavy metal mixed standard sample, and preparation method is:

[0046] S1. Put lead oxide 21g, mercury oxide 31.58g, barium chromate 95g, cadmium oxide 33.41g, pentabromodiphenyl ether 27.53g, octabromodiphenyl ether 24.42g, nonabromodiphenyl ether 23.84g, decabromobiphenyl 163.85g of ether and 445.71g of chlorinated polyolefin were blended to obtain the first mixture;

[0047] S2. Blending the first mixture with 14073.64g of polypropylene, 15g of mineral oil, and 45g of antioxidant to obtain a second mixture, wherein polypropylene is a mixture of 1407.36g of polypropylene powder and 12666.28g of polypropylene pellets, That is, the polypropylene powder accounts for 10wt.% of the polypropylene weight;

[0048] S3. Add the second compound to the twin-screw extruder, melt and extrude and granulate to obtain the standard substance to be treated granules, wherein the screw lengt...

Embodiment 2

[0051] Embodiment 2 provides a kind of polypropenyl chlorine element, polybrominated diphenyl ether and heavy metal mixed standard sample, and the difference of preparation method and embodiment 1 is:

[0052] The polypropylene in S2 is a mixture of 7036.82 g of polypropylene powder and 7036.82 g of polypropylene pellets, that is, the polypropylene powder accounts for 20 wt.% of the polypropylene weight.

Embodiment 3

[0054]Embodiment 3 provides a kind of polypropenyl chlorine element, polybrominated diphenyl ether and heavy metal mixed standard sample, and the difference of preparation method and embodiment 1 is:

[0055] The polypropylene in S2 is a mixture of 13369.96 g of polypropylene powder and 703.68 g of polypropylene pellets, that is, the polypropylene powder accounts for 50 wt.% of the polypropylene weight.

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Abstract

The invention discloses a polypropylene-based chlorine element / polybrominated diphenyl ether / heavy metal mixed standard sample and a preparation method thereof. The preparation method comprises the following steps: blending a heavy metal compound, a polybrominated diphenyl ether flame retardant and chlorinated polyolefin to obtain a first mixture; blending the first mixture with polypropylene, a dispersing agent and an antioxidant to obtain a second mixture, wherein the polypropylene is a mixture of polypropylene powder and polypropylene granules; adding the second mixture into an extruder, and carrying out melt extrusion granulation to obtain to-be-treated particles of a standard substance; and adding the to-be-treated particles of the standard substance into the extruder, and repeatedly carrying out melt extrusion granulation 2-5 times to obtain the polypropylene-based chlorine element / polybrominated diphenyl ether / heavy metal mixed standard sample. According to the invention, the heavy metal compound, the polybrominated diphenyl ether flame retardant and the chlorinated polyolefin are used as raw materials, and the polypropylene-based chlorine element / polybrominated diphenyl ether / heavy metal mixed standard sample which is uniform in component dispersion, uniform and stable in content and smooth in appearance is prepared in a manner of secondary mixing and multi-time melting granulation.

Description

technical field [0001] The invention relates to the technical field of test measurement value transfer, and more specifically relates to a mixed standard sample of polypropylene-based chlorine, polybrominated diphenyl ether and heavy metal and a preparation method thereof. Background technique [0002] Polypropylene is a kind of thermoplastic resin, which is widely used in the production of fiber products, medical equipment, automobiles, pipelines, chemical containers, etc., and is also used in the packaging of food and medicine. During the processing of polypropylene, heavy metals will enter the product in various forms, such as: added to improve performance, mixed in the form of impurities. In order to make polypropylene resins used in a wider range of fields, polypropylene resins are usually modified for flame retardancy, and flame retardants such as polybrominated diphenyl ethers (PBDEs) are added to obtain better flame retardancy effects. In addition, chlorine will als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/28C08K5/06C08K3/22C08K3/24C08K13/02G01N1/28G01N1/38
CPCC08L23/12G01N1/28G01N1/38C08L2205/025C08L2205/035C08K2003/2234C08L23/28C08K5/06C08K3/22C08K3/24C08K13/02Y02W30/62
Inventor 庞承焕吴博单长国黄险波叶南飚宁红涛
Owner NAT POLYMER MATERIALS IND INNOVATION CENT CO LTD
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