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Light-proof PVC composition for disposable blood transfusion transfusion catheter and preparation method

A one-time, composite technology, used in the processing and application of polymer materials, to achieve the effect of no impurities, black spots, no scratches, and health and safety

Active Publication Date: 2022-04-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scientific name of solvent brown 5 is 4-(1-naphthylazo)-1-naphthol, and the application of this type of azo compound in medical plastic products is also restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take titanium dioxide with an average particle size of 410nm and add it to absolute ethanol, the mass volume ratio g:mL of titanium dioxide to absolute ethanol is 200:3500, stir magnetically for 30 minutes to obtain a titanium dioxide suspension; then add the composite modifier to the titanium dioxide suspension After 2 hours of reaction, the amount of composite modifier added is 5% of the mass of the titanium dioxide suspension, and the composite modifier is KH570 silane coupling agent with a mass concentration of 20% and polyvinyl alcohol PEG6000 with a mass concentration of 0.4% in a mass ratio of 1:1 Mixed composite modifier; emulsify for 20 minutes, then adjust the pH of the slurry to 6, continue to react at 30°C for 2.0 hours, ultrasonically disperse the reaction liquid for 30 minutes, wash with alcohol, dry in vacuum at 100°C for 24 hours, grind and crush to obtain active titanium dioxide; The average particle size of active titanium dioxide is 410nm, and the part...

Embodiment 2

[0031] Take titanium dioxide with an average particle size of 408nm and add it to absolute ethanol, the mass volume ratio g:mL of titanium dioxide to absolute ethanol is 200:3450, stir magnetically for 32 minutes to obtain a titanium dioxide suspension; then add the composite modifier to the titanium dioxide suspension After 2 hours of reaction, the amount of composite modifier added is 4.8% of the mass of the titanium dioxide suspension, and the composite modifier is KH570 silane coupling agent with a mass concentration of 19% and polyvinyl alcohol PEG6000 with a mass concentration of 0.41% in a mass ratio of 1:0.9 Mixed composite modifier; emulsify for 21 minutes, then adjust the pH of the slurry to 6, continue to react at 29°C for 2.1h, ultrasonically disperse the reaction solution for 29min, wash with alcohol, dry in vacuum at 101°C for 23h, grind and crush to obtain active titanium dioxide; The average particle size of active titanium dioxide is 408nm, and the particle siz...

Embodiment 3

[0036] Take titanium dioxide with an average particle size of 412nm and add it to absolute ethanol, the mass volume ratio of titanium dioxide to absolute ethanol g:mL is 200:3550, stir magnetically for 29 minutes to obtain a titanium dioxide suspension; then add the composite modifier to the titanium dioxide suspension After 2 hours of reaction, the amount of composite modifier added was 5.2% of the mass of the titanium dioxide suspension, and the composite modifier was KH570 silane coupling agent with a mass concentration of 21% and polyvinyl alcohol PEG6000 with a mass concentration of 0.39% in a mass ratio of 1: 1.1 Mixed composite modifier; emulsify for 20 minutes, then adjust the pH of the slurry to 6, continue to react at 31°C for 1.9h, ultrasonically disperse the reaction liquid for 31min, wash with alcohol, dry in vacuum at 99°C for 25h, grind and crush to obtain active titanium dioxide; The average particle size of active titanium dioxide is 412nm, and the particle siz...

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PUM

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Abstract

The invention discloses a light-shielding PVC composition for a disposable blood transfusion catheter and a preparation method thereof, which belong to the field of processing and application of polymer materials. It is characterized in that: parts by weight are composed of 100 parts of PVC resin; 40-60 parts of plasticizer DINCH; 0.2-2 parts of stabilizer; 0.1-0.3 parts of lubricant methyl silicone oil; 16-18 parts of powdered hydrogenated nitrile rubber; Titanium dioxide 0.034~0.42 parts; ultraviolet light absorber Ciba Tinofast PES 0.1~0.2 part; ultraviolet light absorber UV‑5050H 0.15~0.30 part. The invention makes full use of the light-shielding effect of the powdery hydrogenated nitrile rubber, reduces the amount of small-molecule light-shielding additives, has better hygienic properties, has light-shielding effects, and has high resilience of the catheter.

Description

technical field [0001] The invention discloses a light-shielding PVC composition for a disposable blood transfusion catheter and a preparation method thereof, which belong to the field of processing and application of polymer materials. Background technique [0002] With the improvement of people's living standards and the advancement of medical technology, more and more disposable medical devices are widely used in the medical field, and the development has been particularly rapid in recent years. The number of medical device products made of polyvinyl chloride in my country is extremely large. According to reports and statistics, the use of disposable infusion sets in my country reached eight per capita in 2017. Since the commonly used infusion sets are made of transparent or translucent polymer materials, infusion set products without light-proof function are usually used clinically at present; reactions, light protection measures should be taken when these drugs are use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L83/04C08L15/00C08K13/06C08K9/10C08K9/06C08K3/22
CPCC08L27/06C08L2203/18C08L2203/02C08L2205/03C08K2003/2241C08K2201/003C08L83/04C08L15/005C08K13/06C08K9/10C08K9/06C08K3/22
Inventor 张桦李静裴晓静王晶张新华桂俊杰孙培培刘浩王晓敏刘容德侯斌
Owner CHINA PETROLEUM & CHEM CORP
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