PVC film for blood transfusion bag and preparation method of PVC film for blood transfusion bag

A blood transfusion bag and film technology, applied in the field of PVC blood transfusion bag film and its preparation, can solve the problems of low light transmittance, right-angle tear strength, tensile strength and elongation, etc.

Inactive Publication Date: 2015-03-25
SUZHOU BEC BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above technical problems, the present application provides a film for PVC blood transfusion bags and its preparation method, which solves the technical problems of low light transmittance, right-angle tear strength, tensile strength and elongation of existing medical new materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take by weight 100 parts of PVC; 0.2 part of zinc stearate; 35 parts of DOP; 0.1 part of aluminum stearate; 5 parts of epoxy tetrahydrophthalate dioctyl; 0.7 part of cadmium stearate; 1 part of n-octyl-bis-(2-ethylhexyl thioglycolate) tin; 20 parts of DBP; 1 part of epoxy soybean oil octyl; 2 parts of CPE; 0.25 parts of antioxidant 264; triphenyl phosphate 0.5 parts; 0.5 parts of benzene diisooctyl phosphite; 0.05 parts of barium stearate; 0.1 parts of phenylmethyl silicone oil.

[0023] Put PVC, zinc stearate, DOP, aluminum stearate and CPE into the reaction kettle and heat to 40°C, stir for 2 minutes at a stirring speed of 400 rpm, then add the remaining raw materials, heat up to 60°C, stir for 5 minutes, and stir at a speed of 400 rpm. 600 rpm.

[0024] Put the mixed material into a single-screw extruder for extrusion, barrel temperature: 150-155°C, 160-165°C, 165-170°C, body temperature 135°C, screw speed 25 rpm, after coiling Just pack it.

[0025] The light tra...

Embodiment 2

[0027] 0.8 parts of zinc stearate; 55 parts of DOP; 0.3 parts of aluminum stearate; 25 parts of epoxy tetrahydrophthalate dioctyl; 1.3 parts of cadmium stearate; 5 parts of n-octyl-bis-(2-ethylhexyl thioglycolate) tin; 40 parts of DBP; 20 parts of epoxy soybean oil octyl; 6 parts of CPE; 0.65 parts of antioxidant 264; triphenyl phosphate 4.5 parts; 2.5 parts of phenylenedioctyl phosphite; 0.25 parts of barium stearate; 0.5 parts of benzyl silicone oil.

[0028] Put PVC, zinc stearate, DOP, aluminum stearate and CPE into the reactor and heat to 60°C, stir for 22min at a stirring speed of 600 rpm, then add the remaining raw materials, heat up to 80°C, stir for 25min at a stirring speed of 800 rpm.

[0029] Put the mixed material into a single-screw extruder for extrusion, barrel temperature: 150-155°C, 160-165°C, 165-170°C, body temperature 155°C, screw speed 45 rpm, after coiling Just pack it.

[0030] The light transmittance of the product is 88%, the longitudinal elongatio...

Embodiment 3

[0032] Take by weight 100 parts of PVC; 0.3 parts of zinc stearate; 40 parts of DOP; 0.15 parts of aluminum stearate; 10 parts of epoxy tetrahydrophthalate dioctyl; 0.8 parts of cadmium stearate; 2 parts of barium zinc stabilizer; 25 parts of DBP; 5 parts of epoxy soybean oil octyl; 3 parts of CPE; 0.35 parts of antioxidant 264; 1.5 parts of triphenyl phosphate; Barium stearate is 0.1 part; phenylmethyl silicone oil is 0.2 part.

[0033] Put PVC, zinc stearate, DOP, aluminum stearate and CPE into the reaction kettle and heat to 45°C, stir for 8 minutes at a stirring speed of 450 rpm, then add the remaining raw materials, heat up to 65°C, stir for 10 minutes, and stir at a speed of 450 rpm. 650 rpm.

[0034] Put the mixed material into a single-screw extruder for extrusion, barrel temperature: 150-155°C, 160-165°C, 165-170°C, body temperature 140°C, screw speed 30 rpm, after coiling Just pack it.

[0035] The light transmittance of the product is 90%, the longitudinal elonga...

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Abstract

The invention discloses a PVC film for a blood transfusion bag and a preparation method of the PVC film for the blood transfusion bag. The preparation method comprises the following steps: weighing PVC, zinc stearate, DOP, aluminum stearate, di(2-ethylhexyl)-4,5-epoxytetrahydrophthalate, cadmium stearate, a stabilizer, DBP, dicumyl peroxide, CPE, an antioxidant, triphenyl phosphate, diisooctyl phenyl phosphate, barium stearate and phenyl methyl silicone oil in parts by weight, and extruding and pelletizing after uniformly mixing so as to obtain the PVC film. The light transmittance of the product is 85-95%, the longitudinal elongation at 0 DEG C is 5-45%, the longitudinal tensile strength is 20-40 MPa, the transverse tensile strength is 25-45 MPa, the longitudinal elongation is 200-600%, the transverse elongation is 400-800%, the longitudinal tear strength is 10-12 kN/m and the transverse tear strength is 12-16 kN/m.

Description

technical field [0001] The application belongs to the technical field of new medical materials, and in particular relates to a film for PVC blood transfusion bags and a preparation method thereof. Background technique [0002] Biomedical materials refer to a class of materials with special properties and special functions, which are used for artificial organs, surgical repair, physiotherapy rehabilitation, diagnosis and treatment of diseases, and do not have adverse effects on human tissues. Now various synthetic materials and natural polymer materials, metal and alloy materials, ceramic and carbon materials, and various composite materials, the products made of them have been widely used in clinical and scientific research. Biomolecules constitute biomaterials, and biomaterials constitute biocomponents. Various materials and components in living organisms have their own biological functions. They are "living" and controlled by the overall organism. Some of the biological...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L83/04C08K5/00C08K5/098C08K5/12C08K5/1515C08K5/523
CPCC08L27/06C08K2201/014C08L2201/10C08L2203/02C08L2205/03C08L23/286C08L83/04C08K5/0008C08K5/098C08K5/12C08K5/1515C08K5/523C08K5/524C08K5/13C08K5/57
Inventor 徐勤霞李苏杨
Owner SUZHOU BEC BIOLOGICAL TECH
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