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Preparation method for standard sample of polycyclic aromatic hydrocarbons in PP (Polypropylene) plastic

A standard sample, polycyclic aromatic hydrocarbon technology, applied in the field of preparation of polycyclic aromatic hydrocarbon standard samples, can solve problems such as large error and uneven mixing, and achieve the effects of reducing errors, ensuring uniformity and ensuring stability

Inactive Publication Date: 2019-02-15
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of uneven mixing and large errors in the prior art, and provide a method for preparing a standard sample of PP plastic polycyclic aromatic hydrocarbons with good uniformity, good stability, and a characteristic content level that meets the standard

Method used

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  • Preparation method for standard sample of polycyclic aromatic hydrocarbons in PP (Polypropylene) plastic
  • Preparation method for standard sample of polycyclic aromatic hydrocarbons in PP (Polypropylene) plastic
  • Preparation method for standard sample of polycyclic aromatic hydrocarbons in PP (Polypropylene) plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The content of phenanthrene is 15mg / kg, the content of anthracene is 21mg / kg, the content of fluoranthene is 12mg / kg, the content of pyrene is 33mg / kg, the content of benzo[α]pyrene is 25mg / kg, and the content of benzo[α]anthracene is 12mg / kg, benzo[a]phenanthrene content is the preparation process of PP-based standard substance of 28mg / kg:

[0037] 1. Preparation of blank standard samples

[0038] 1.1 Take PP resin (HP500) 4465g; PP powder (150 powder) 500g, stabilizer A (X-001) 5g, stabilizer B (X-002) 10g, lubricant (O-W01) 20g, add to the high mixer medium, stir.

[0039] 1.2 Heat and melt the mixture at a temperature of 200°C, extrude the mixture with an extruder and pelletize it in a pelletizer.

[0040] 2. Preparation of Concentrated Masterbatch (PP-MA)

[0041] 2.1 Weigh 0.975g of target phenanthrene, 1.365g of anthracene, 0.78g of fluorescein, 2.145g of pyrene, 1.625g of benzo[α]pyrene, 0.78g of benzo[α]anthracene, 1.82g of benzo[a]phenanthrene and use Sol...

Embodiment 2

[0060] The preparation process of the PP-based standard substance whose content is 65mg / kg of naphthalene, phenanthrene, anthracene, fluoranthene and pyrene:

[0061] 1. Preparation of blank standard samples

[0062] 1.1 Take PP resin (HP500) 4465g; PP powder (150 powder) 500g, stabilizer A (X-001) 5g, stabilizer B (X-002) 10g, lubricant (O-W01) 20g, add to the high mixer medium, stir.

[0063] 1.2 Heat and melt the mixture at a temperature of 200°C, extrude the mixture with an extruder and pelletize it in a pelletizer.

[0064] 2. Preparation of Concentrated Masterbatch (PP-MA)

[0065] 2.1 Weigh 6.5g of target substances (naphthalene, phenanthrene, anthracene, fluoranthene, pyrene) and dissolve them in 50-100ml of solvent (organic solvents such as toluene and acetone) to prepare a mixed solution;

[0066] 2.2 Weigh 500g of PP powder, 5g of stabilizer A (X-001), 10g of stabilizer B (X-002), 20g of lubricant (O-W01), and mix well;

[0067] 2.3 Mix the mixture of 2.1 and 2....

Embodiment 3

[0085] The preparation process of the PP-based standard substance whose content is 100mg / kg of naphthalene, phenanthrene, anthracene, fluoranthene and pyrene:

[0086] 1. Preparation of blank standard samples

[0087] 1.1 Take PP resin (HP500) 4465g; PP powder (150 powder) 500g, stabilizer A (X-001) 5g, stabilizer B (X-002) 10g, lubricant (O-W01) 20g, add to the high mixer medium, stir.

[0088] 1.2 Heat and melt the mixture at a temperature of 200°C, extrude the mixture with an extruder and pelletize it in a pelletizer.

[0089] 2. Preparation of Concentrated Masterbatch (PP-MA)

[0090] 2.1 Weigh 10.0g of the target substance (naphthalene, phenanthrene, anthracene, fluoranthene, pyrene) and dissolve them in 50-100ml of solvent (toluene, acetone and other organic solvents) to prepare a mixed solution;

[0091] 2.2 Weigh 500g of PP powder, 5g of stabilizer A (X-001), 10g of stabilizer B (X-002), 20g of lubricant (O-W01), and mix well;

[0092] 2.3 Mix the mixture of 2.1 an...

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Abstract

The invention discloses a preparation method for a standard sample of the polycyclic aromatic hydrocarbons in a PP plastic. According to the preparation method, in the preparation of the standard sample, the method uses the master-batch preparation method, so that the quality of the additives is improved; avoids the situation that the mixing difficulty and the uniformity are poor, due to the factthat the content of the target object is low, and the added amount of the target object is directly added; solves the problem that the actual value differs greatly from the theoretical value, caused by the weighing less and the weighing error; guarantees the uniformity during the sample mixing by dissolving the target substance through reagents.

Description

technical field [0001] The invention relates to the preparation of polycyclic aromatic hydrocarbon standard samples, in particular to a preparation method of PP plastic polycyclic aromatic hydrocarbon standard samples. Background technique [0002] The 16 common congeners of polycyclic aromatic hydrocarbons (PAHs) mainly include: naphthalene, anthracene, phenanthrene, lettuce, acenaphthene, fluorene, pyrene, indene, fluoranthene, benzo(a) acenaphthylene, benzo(b) fluoranthene, Benzo (k) fluoranthene, benzo (a) pyrene anthracene, benzo (1,2,3-cd) pyrene, dibenzo (a, n) anthracene, benzo (ghi) north (perylene) . The main hazards of polycyclic aromatic hydrocarbons (PAHs) to the human body are the respiratory tract and skin. People have been in the environment polluted by polycyclic aromatic hydrocarbons for a long time, which can cause acute or chronic injury. Common symptoms include solar dermatitis, acne-type dermatitis, folliculitis, and verrucous organisms. [0003] Po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/38G01N1/44G01N1/36
CPCG01N1/28G01N1/36G01N1/38G01N1/44G01N2001/364
Inventor 单长国宋翠翠吴博庞承焕
Owner KINGFA SCI & TECH CO LTD
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