Light-screening transparent PVC material and preparation method thereof

A technology of PVC material and PVC resin, applied in the field of light-shielding transparent PVC material and its preparation, can solve the problems of low visible light transmittance, change of drug ingredients, cumbersome preparation process, etc., and achieve improved light-shielding wavelength range and high safety , Improve the effect of dispersion

Pending Publication Date: 2020-05-12
四川普瑞斯生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the single-layer structure, since most of the light-shielding agents are organic ultraviolet absorbers, such as benzotriazoles, benzophenones, phenyl salicylate, etc., they all have migration risks and potential toxicity, and may be compatible with some The drug reacts, resulting in a change in the composition of the drug; although the composite structure avoids direct contact between the drug and the light-shielding layer, it needs a special design to ensure the stability of the interface between the light-shielding layer and the non-light-shielding layer. The preparation process is cumbersome and the cost is high , and in order to achieve good light protection, its visible light transmittance is also low

Method used

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  • Light-screening transparent PVC material and preparation method thereof
  • Light-screening transparent PVC material and preparation method thereof
  • Light-screening transparent PVC material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A light-shielding transparent PVC material, which is composed of the following components: 10kg of suspension polyvinyl chloride resin (polymerization degree: 800-2500), 6kg of TOTM, 0.15kg of calcium / zinc heat stabilizer (calcium ricinoleate 0.06kg, Zinc octoate 0.03kg, zinc stearate 0.03kg, polyvinyl alcohol 0.03kg), epoxy soybean oil 0.8kg, polyethylene wax 0.08kg, light-shielding agent 0.003kg (nano-zinc oxide 0.0024kg and nano-carbon black 0.0006kg) (Nano zinc oxide 80%, nano carbon black 20%).

[0034] (1) Add the four components of calcium ricinoleate, zinc octylate, zinc stearate and polyvinyl alcohol into the epoxy soybean oil liquid according to the stated ratio, stir at 155-165°C, and the stirring speed is 60- 80 rpm, the time is not less than 15 minutes, after observing that the solid particles are fully dispersed, pour them into the colloid grinder for circular grinding, control the diameter of the solid particles to be less than 1 μm, and use the colloid a...

Embodiment 2

[0038] A light-shielding transparent PVC material, which is composed of the following components: 10kg of suspension polyvinyl chloride resin (polymerization degree: 800-2500), 6kg of TOTM, 0.15kg of calcium / zinc heat stabilizer (calcium ricinoleate 0.06kg, Zinc octoate 0.03kg, zinc stearate 0.03kg, polyvinyl alcohol 0.03kg), epoxy soybean oil 0.8kg, polyethylene wax 0.08kg, light-shielding agent 0.001kg (nano-zinc oxide 0.0008kg and nano-carbon black 0.0002kg) (Nano zinc oxide 80%, nano carbon black 20%).

[0039] The preparation method is the same as in Example 1.

Embodiment 3

[0041] A light-shielding transparent PVC material, which is composed of the following components: 10kg of suspension polyvinyl chloride resin (polymerization degree: 800-2500), 8kg of TOTM, 0.15kg of calcium / zinc heat stabilizer (0.06kg of calcium ricinoleate, Zinc octoate 0.03kg, zinc stearate 0.03kg, polyvinyl alcohol 0.03kg), epoxy soybean oil 0.8kg, polyethylene wax 0.08kg, light-shielding agent 0.005kg (nano-zinc oxide 0.004kg and nano-carbon black 0.001kg) (Nano zinc oxide 80%, nano carbon black 20%).

[0042] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a light-screening transparent PVC material and a preparation method thereof. The light-screening transparent PVC material comprises the following raw materials in parts by weight: 100 parts of PVC resin, 40-80 parts of a plasticizer, 0.4-2.0 parts of a calcium / zinc heat stabilizer, 2-12 parts of an auxiliary heat stabilizer, 0.5-1.0 part of a lubricant and 0.01-0.05 part ofa light-screening agent, wherein the plasticizer is a trimellitate plasticizer, and the light-screening agent is composed of 75-90% of nano zinc oxide and 10-25% of nano carbon black. The light-screening transparent PVC material disclosed by the invention can effectively block and shield light which is easy to cause drug degeneration and has a wavelength range of 250-550 nm, can effectively transmit visible light, is simple in preparation process, can be suitable for preparing a wide-wave light-screening infusion apparatus, and solves the problems of narrow light-screening wavelength range, low visible light transmittance and potential safety hazards of an existing PVC light-screening infusion apparatus material.

Description

technical field [0001] The invention relates to the field of light-shielding materials, in particular to a light-shielding transparent PVC material and a preparation method thereof. Background technique [0002] PVC material has excellent biocompatibility, antibacterial properties, transparency, mechanical properties and cost-effectiveness, and is the most consumed disposable medical consumable material, among which PVC infusion set is the most widely used. However, some drugs with special structures are prone to decomposition, oxidation and other reactions when exposed to light (especially ultraviolet light), resulting in changes in drug components, resulting in decreased curative effect, and even the production of toxic substances, so they need to be infused in a light-proof environment. The PVC material of the light-proof infusion set came into being. [0003] At present, the light-shielding of domestic infusion sets is mainly realized by a single-layer structure contain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L29/04C08L91/00C08L23/06C08K13/02C08K3/22C08K3/04C08K5/11C08K5/12
CPCC08K2003/2296C08K2201/011C08L27/06C08L2201/10C08L2203/02C08L2205/035C08L29/04C08L91/00C08L23/06C08K13/02C08K3/22C08K3/04C08K5/11C08K5/12
Inventor 雷冰陈浩雷应雄
Owner 四川普瑞斯生物科技有限公司
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