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Radiation resistant medical vinylene chloride plastics free from phthalate

A phthalate and polyvinyl chloride technology, which is applied in the field of medical polyvinyl chloride plastics, can solve the problems of containing phthalates and cannot effectively absorb gamma rays, etc., and achieve the effect of ensuring safety

Inactive Publication Date: 2011-02-02
欧阳伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects that medical polyvinyl chloride plastics in the prior art contain phthalates, cannot effectively absorb gamma rays, and will affect the human body during medical treatment. The effective compatibility and reaction of solvents and polyvinyl chloride plastics can absorb and block the intrusion of γ-rays, and provide a radiation-resistant medical polyvinyl chloride plastic without phthalates. This medical polyvinyl chloride The plastic does not contain phthalates and can effectively absorb γ-rays. The medical appliances made of this medical polyvinyl chloride plastic do not contain phthalates and can effectively absorb γ-rays. Using this phthalate-free Diformate medical devices can ensure the safety of the human body during the medical process

Method used

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  • Radiation resistant medical vinylene chloride plastics free from phthalate
  • Radiation resistant medical vinylene chloride plastics free from phthalate
  • Radiation resistant medical vinylene chloride plastics free from phthalate

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Example 1, a radiation-resistant phthalate-free medical polyvinyl chloride plastic described in this example is prepared by blending the following components by weight:

[0035] 100 parts of polyvinyl chloride resin;

[0036] 60 parts of environmentally friendly plasticizers;

[0037] 4.5 parts of gamma ray absorber;

[0038] 7 parts of high-efficiency heat stabilizer;

[0039] 1 part lubricant;

[0040] The polyvinyl chloride resin is a polyvinyl chloride resin prepared by a suspension method, and its degree of polymerization is 1000-1300. The environment-friendly plasticizer is diisononyl cyclohexane 1,2-dicarboxylate. The γ-ray absorber is 2-nitro-2'-hydroxy-5'-methylazobenzene. The high-efficiency heat stabilizer is a liquid calcium-zinc heat stabilizer. Described lubricant is n-butyl stearate.

[0041] The preparation method of this example is: put the above-mentioned components in parts by weight into a high-speed reactor for polymerization reaction, the re...

Embodiment 2

[0042] Example 2, a radiation-resistant medical polyvinyl chloride plastic without phthalates described in this example, prepared by blending the following components by weight:

[0043] 100 parts of polyvinyl chloride resin;

[0044] Environmental protection plasticizer 25 parts;

[0045] 3 parts gamma ray absorber;

[0046] 9 parts of high-efficiency heat stabilizer;

[0047] 1.5 parts of lubricant;

[0048] The polyvinyl chloride resin is a polyvinyl chloride resin prepared by a suspension method, and its degree of polymerization is 1000-1300. Described environment-friendly plasticizer is SOFT-N-SAFE, SOFT-N-SAFE is a new type of acetylated monoglyceride derived from hydrogenated castor oil, which is produced by Danisco (China) Co., Ltd. The γ-ray absorber is 2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine. The high-efficiency heat stabilizer is a paste calcium zinc heat stabilizer. The lubricant is oxidized polyethylene wax.

[0049]The preparation method of this...

Embodiment 3

[0050] Example 3, a radiation-resistant medical polyvinyl chloride plastic without phthalates described in this example, prepared by blending the following components by weight:

[0051] 100 parts of polyvinyl chloride resin;

[0052] 95 parts of environmentally friendly plasticizers;

[0053] 6 parts of gamma ray absorber;

[0054] 4.5 parts of high-efficiency heat stabilizer;

[0055] Lubricant 0.3 parts;

[0056] The polyvinyl chloride resin is a polyvinyl chloride resin prepared by a suspension method, and its degree of polymerization is 1000-1300. Described environment-friendly plasticizer is tri-n-butyl citrate (also can be EBN, and EBN is produced by Korean LG company). The γ-ray absorber is 2,4 dihydroxybenzophenone or 2(2-dihydroxy-5-benzyl)benzotriazole. The high-efficiency heat stabilizer is a powder calcium zinc heat stabilizer. Described lubricant is n-butyl stearate and oxidized polyethylene wax.

[0057] The preparation method of this example is: put the ...

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Abstract

The invention relates to radiation resistant medical vinylene chloride plastics free from phthalate, comprising the following components in parts by weight: 100 parts of polyvinyl chloride resin, 25-95 parts of environmental-friendly plasticizer, 0.1-8 parts of gamma ray absorbent, 4.5-9 parts of efficient heat stabilizer and 0.3-1.5 parts of lubricant; the environmental-friendly plasticizer is one out of cyclohexane 1,2-dioctyl phthalate DINCH, SOFT-N-SAFE, EBN or TBC; the gamma ray absorbent can be 2-nitro-2'-hydroxy-5'-methyl azobenzene; the efficient heat stabilizer is one out of powder, paste or liquid calcium zinc heat stabilizer; and the lubricant is stearic acid PNBCA or oxidized polyethlene wax. The radiation resistant medical vinylene chloride plastics free from phthalate are used for producing disposable medical supplies. As the plastics of the invention are free from phthalate and can effectively absorb gamma rays, thus enjoying safety in use.

Description

technical field [0001] The invention relates to the field of medical polyvinyl chloride plastics for producing disposable medical supplies, in particular to a radiation-resistant medical polyvinyl chloride plastic without phthalates. Background technique [0002] Products such as medical transfusion blood vessel, transfusion tube, transfusion bag, catheter, intubate and oxygen mask of prior art mainly all are made of medical polyvinyl chloride plastics. Medical polyvinyl chloride plastic is widely used in medical equipment, mainly because medical polyvinyl chloride plastic itself has good physical properties. These physical properties include: the convenience of making medical polyvinyl chloride plastics, and the good compatibility between such materials and intravenous (intravenous, IV) injection fluids and blood. Therefore, in terms of medical treatment, this plastic product has excellent performance and is used Convenient and very popular with users. However, the hardne...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/11C08K5/12
Inventor 欧阳伟
Owner 欧阳伟
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