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Production technology of novel medical section

A production process and slicing technology, which is applied to the production process of new medical slices, can solve the problems that ordinary bottle-level slices are not suitable for blood collection tubes, and the material consumption is large, and achieve the effects of stable product quality, high production efficiency, and improved fluidity.

Inactive Publication Date: 2016-08-17
ZHUHAI HUARUN PACKAGING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, due to high requirements on fluidity; fourth, due to the thin wall thickness of the product, it is necessary to stop and clean the mold every 4 hours during normal production, resulting in relatively large material consumption
In view of the above factors, the common bottle-grade slices of various brands widely used at present are not suitable for the blood collection tube market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add mixing tank, liquid metering pump, three-way valve and static mixer on the pipeline between esterification tank and prepolymerization tank on the technical PET production line of an enterprise. A side screw is added to the melt pipeline at the outlet of the final polymerization kettle, and the main PET is a bottle-grade polyester product specified in GB17931-2003.

[0024] 1. After the slurry is prepared from terephthalic acid (PTA), ethylene glycol (EG), antimony acetate and toner, it enters the esterification tank. The esterification reaction temperature is 250~280°C, and the reaction pressure is 0.3 Mpa. Time 2.5 hours;

[0025] 2. After the esterification is completed, add polyphosphoric acid as a heat stabilizer. Sodium stearate is formulated into ethylene glycol solution in the mixing tank, and the above mixed solution is added to the static mixer between the esterification kettle and the prepolymerization kettle with a metering pump, and the metering pump m...

Embodiment 2

[0030] Add mixing tank, liquid metering pump, three-way valve and static mixer on the pipeline between esterification tank and prepolymerization tank on the technical PET production line of an enterprise. A side screw is added to the melt pipeline at the outlet of the final polymerization kettle, and the main PET is a bottle-grade polyester product specified in GB17931-2003.

[0031] 1. After the slurry is prepared from terephthalic acid (PTA), ethylene glycol (EG), antimony acetate and toner, it enters the esterification tank. The esterification reaction temperature is 250~280°C, and the reaction pressure is 0.3 Mpa. Time 2.5 hours;

[0032] 2. After the esterification is completed, add polyphosphoric acid as a heat stabilizer. Potassium stearate is formulated into ethylene glycol solution in the mixing tank, and the above mixed solution is added to the static mixer between the esterification tank and the prepolymerization tank with a metering pump, and the metering pump me...

Embodiment 3

[0037] Add mixing tank, liquid metering pump, three-way valve and static mixer on the pipeline between esterification tank and prepolymerization tank on the technical PET production line of an enterprise. A side screw is added to the melt pipeline at the outlet of the final polymerization kettle, and the main PET is a bottle-grade polyester product specified in GB17931-2003.

[0038] 1. After the slurry is prepared from terephthalic acid (PTA), ethylene glycol (EG), antimony acetate and toner, it enters the esterification tank. The esterification reaction temperature is 250~280°C, and the reaction pressure is 0.3 Mpa. Time 2.5 hours;

[0039] 2. After the esterification is completed, add polyphosphoric acid as a heat stabilizer. In the mixing tank, ammonium stearate is formulated into ethylene glycol solution, and the above mixed solution is added to the static mixer between the esterification tank and the prepolymerization tank with a metering pump, and the metering pump me...

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PUM

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Abstract

The invention discloses and provides a production technology of a novel medical section. The production technology has the advantages that the production technology is improved on the traditional polyester section, the polyethylene wax and stearate can be effectively utilized, and the uniform dispersing in the polyester material is guaranteed; the prepared special section has good fluidity, stability and demoulding property in actual use; the production efficiency of medical products is greatly improved, and the production cost is reduced; the production technology can be applied to the technical field of production technology of novel medical sections.

Description

technical field [0001] The invention relates to a production process of a novel medical slice. Background technique [0002] Polyester is a general term for thermoplastic linear saturated polyester represented by polyethylene terephthalate (PET). One of its important uses is in the field of food packaging. As a food packaging material, PET can be made into biaxially stretched packaging film, and can also be made into amorphous preforms and then blown to obtain high-strength, high-transparency stretch blow-molded bottles, and can also be directly extruded into sheets The material is then thermoformed to produce a hollow container. PET products are transparent, oil-resistant, fragrant, hygienic and reliable, and have a wide range of operating temperatures, so their usage in the packaging field continues to grow. [0003] Since the invention of vacuum blood collection tubes in 1937, the product has been continuously perfected in use. It began to be used in some hospitals in t...

Claims

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Application Information

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IPC IPC(8): C08G63/183C08K5/098C08L67/02C08L23/06
CPCC08G63/183C08L67/02C08L23/06C08K5/098
Inventor 陈国康张成礼曾荣温杰文
Owner ZHUHAI HUARUN PACKAGING MATERIALS
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