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Proficiency testing samples used for determination of benzyl butyl phthalate (BBP) in textiles and preparation method thereof

A technology for proficiency testing of butyl benzyl phthalate and its application in the field of proficiency testing samples and its preparation for the determination of butyl benzyl phthalate in textiles, achieving the effect of simple preparation method and high success rate

Inactive Publication Date: 2017-07-11
PEOPLES REPUBLIC OF CHINA BEIJING ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The preparation of proficiency testing samples is the difficulty and core content of proficiency testing activities for the determination of phthalates in textiles, and there are no related reports at home and abroad.

Method used

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  • Proficiency testing samples used for determination of benzyl butyl phthalate (BBP) in textiles and preparation method thereof
  • Proficiency testing samples used for determination of benzyl butyl phthalate (BBP) in textiles and preparation method thereof
  • Proficiency testing samples used for determination of benzyl butyl phthalate (BBP) in textiles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 Low-concentration proficiency test sample: the concentration of butyl benzyl phthalate (BBP) is 504.8 mg / kg

[0033] A kind of preparation method of the proficiency testing sample that is used for the determination of butyl benzyl phthalate (BBP) in textiles, the method may further comprise the steps:

[0034] (1) Select the base fabric: select pure cotton woven plain bleached gray fabric with a clean surface and no defects. The fabric parameters are: width 183cm, warp direction 235 threads / 10cm, weft direction 234 threads / 10cm, and weight 131g / m 2 .

[0035] (2) Preparation of slurry: Weigh 12.5g of butyl benzyl phthalate (BBP), add 10kg of diethyl phthalate (non-banned plasticizer), and then add 15kg of polyvinyl chloride paste resin (PVC, model is P440), stir evenly; Then add 125g isocyanate crosslinking agent, 125g organotin stabilizer, 20g antioxidant CA, 20g antioxidant 1010, 20g UV-327 and 20g UV- 531.

[0036] (3) Coating: One-sided coating is adopt...

Embodiment 2

[0056] Example 2 Medium-concentration proficiency test sample: the concentration of butylbenzyl phthalate (BBP) is 1531.4mg / kg

[0057] A kind of preparation method of the proficiency testing sample that is used for the determination of butyl benzyl phthalate (BBP) in textiles, the method may further comprise the steps:

[0058] (1) Select the base fabric: select pure cotton woven plain bleached gray fabric with a clean surface and no defects. The fabric parameters are: width 183cm, warp direction 235 threads / 10cm, weft direction 234 threads / 10cm, and weight 131g / m 2 .

[0059] (2) prepare slurry: take 40g butyl benzyl phthalate (BBP), add in 10kg diethyl phthalate (non-banned plasticizer), then add 15kg polyvinyl chloride paste resin ( PVC, the model is P440), stir well; then add 125g isocyanate crosslinking agent, 125g organotin stabilizer, 20g antioxidant CA, 20g antioxidant 1010, 20g anti-ultraviolet agent UV-327 and 20g anti-ultraviolet agent UV-531 .

[0060] (3) Coat...

Embodiment 3

[0080] Example 3 High-concentration proficiency test sample: the concentration of butylbenzyl phthalate (BBP) is about 2064.6mg / kg

[0081] A kind of preparation method of the proficiency testing sample that is used for the determination of butyl benzyl phthalate (BBP) in textiles, the method may further comprise the steps:

[0082] (1) Select the base fabric: select pure cotton woven plain bleached gray fabric with a clean surface and no defects. The fabric parameters are: width 183cm, warp direction 235 threads / 10cm, weft direction 234 threads / 10cm, and weight 131g / m 2 .

[0083] (2) prepare slurry: take 50g butyl benzyl phthalate (BBP), add in 10kg diethyl phthalate (non-banned plasticizer), then add 15kg polyvinyl chloride paste resin ( PVC, the model is P440), stir well; then add 125g isocyanate crosslinking agent, 125g organotin stabilizer, 20g antioxidant CA, 20g antioxidant 1010, 20g anti-ultraviolet agent UV-327 and 20g anti-ultraviolet agent UV-531 .

[0084] (3) ...

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Abstract

The invention discloses proficiency testing samples used for determination of BBP in textiles. The concentrations of BBP in the proficiency testing samples are in a range of 479.9 to 2129.1 mg / kg. The invention also discloses a preparation method for the proficiency testing samples. According to the invention, textile PVC samples with different BBP concentrations are prepared by using BBP and a simple PVC film coating process and are used for proficiency testing for determination of BBP in textiles. Meanwhile, the preparation method for the proficiency testing samples is simple in process and high in success rate; and the prepared proficiency testing samples can be stored and transported at normal temperature, and the uniformity and stability of the prepared proficiency testing samples meet requirements prescribed in the Evaluation Manuel for Uniformity and Stability of Proficiency Testing Samples CNAS-GL03.

Description

technical field [0001] The invention relates to the technical field of textile detection. More specifically, it relates to a proficiency testing sample for the determination of butyl benzyl phthalate in textiles and a preparation method thereof. Background technique [0002] Butylbenzyl phthalate (BBP) is one of the phthalate plasticizers. Phthalate plasticizers are widely used in the textile industry. They can be used as solvents for polyvinyl chloride (PVC) coatings, paint printing and hot-pressing decals, and can also be used as dyeing carriers. According to random surveys by relevant departments, 66% of exported knitted garments using coating and printing processes contain varying degrees of phthalate plasticizers. Studies have shown that some phthalates are typical environmental hormones and have been listed as Category 2 reproductive toxic substances by REACH regulations. So far, many countries in the world have introduced regulations and standards to limit the cont...

Claims

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Application Information

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IPC IPC(8): G01N33/36
CPCG01N33/36
Inventor 崔莎莎严兰珍赵靖敏朱林平耿佳饶云雷
Owner PEOPLES REPUBLIC OF CHINA BEIJING ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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