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Medical fluid stopping clip composite material and preparation method thereof

A technology of composite materials and liquid stop clips, which is applied in the field of medical stop liquid clip composite materials and its preparation, can solve the problems of short life, poor environmental protection effect of medical stop liquid clips, etc., improve heat resistance and avoid the defects of easy discoloration , the effect of excellent strength and rigidity

Inactive Publication Date: 2018-06-15
威海联桥新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the technical problems of poor environmental protection effect and short service life of existing medical liquid stop clips, and provides a medical stop liquid clip composite material with good environmental protection effect and long service life and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Calculated by mass percentage, the medical stop clip composite material of this embodiment contains the following components: 55% polypropylene (PP), 30% polyamide (PA6), 12.9% compatibilizer, 0.4% primary antioxidant, Auxiliary antioxidant 0.2%, auxiliary agent A 0.5%, auxiliary agent B 0.5%, lubricating dispersant 0.5%.

[0036] The preparation method is as follows:

[0037] (1) Pour polypropylene, polyamide and compatibilizer into the mixer, stir for 1min, the speed of the mixer is 200r / min, add lubricating dispersant during the stirring process; adjust the speed of the mixer to 950r / min, continue stirring for 1min ;

[0038] (2) Adjust the speed of the mixer to 200r / min, continue to stir for 1min, add auxiliary agent A, auxiliary agent B, main antioxidant and auxiliary antioxidant during the stirring process; adjust the speed of the mixer to 950r / min, continue to stir for 2min , to obtain mixed raw materials;

[0039] (3) Add the mixed raw materials obtained in s...

Embodiment 2

[0041] Calculated by mass percentage, the medical stop clip composite material of this embodiment contains the following components: 65.5% polypropylene (PP), 23% polyamide (PA6), 10% compatibilizer, 0.3% primary antioxidant, Auxiliary antioxidant 0.2%, auxiliary agent A 0.3%, auxiliary agent B 0.5%, lubricating dispersant 0.2%.

[0042] The preparation method is as follows:

[0043] (1) Pour polypropylene, polyamide and compatibilizer into the mixer, stir for 1.3min, the mixer speed is 180r / min, add lubricating dispersant during the mixing process; adjust the mixer speed to 700r / min, continue stirring 1.3min;

[0044] (2) Adjust the speed of the mixer to 180r / min, continue to stir for 1.3min, add auxiliary agent A, auxiliary agent B, main antioxidant and auxiliary antioxidant during the stirring process; adjust the speed of the mixer to 700r / min, continue to stir 2.2min, get the mixed raw material;

[0045] (3) Add the mixed raw materials obtained in step (2) into a twin-s...

Embodiment 3

[0047]Calculated by mass percentage, the medical stop clip composite material of this embodiment contains the following components: 62.7% polypropylene (PP), 28% polyamide (PA6), 8% compatibilizer, 0.2% primary antioxidant, Auxiliary antioxidant 0.1%, auxiliary agent A 0.3%, auxiliary agent B 0.4%, lubricating dispersant 0.3%.

[0048] The preparation method is as follows:

[0049] (1) Pour polypropylene, polyamide and compatibilizer into the mixer, stir for 1.6min, the mixer speed is 160r / min, add lubricating dispersant during the mixing process; adjust the mixer speed to 600r / min, continue stirring 1.5min;

[0050] (2) Adjust the speed of the mixer to 160r / min, continue to stir for 1.6min, add auxiliary agent A, auxiliary agent B, main antioxidant and auxiliary antioxidant during the stirring process; adjust the speed of the mixer to 600r / min, continue to stir 2.4min, get the mixed raw material;

[0051] (3) Add the mixed raw materials obtained in step (2) into a twin-scr...

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Abstract

The invention relates to a medical fluid stopping clip composite material and a preparation method thereof, and solves the technical problem that an existing water delivery pipe has narrow applicationrange, poor transparency and no bacteriostatic ability. The composite material comprises the following components in percentage by mass: 55-75% of polypropylene, 20-30% of polyamide and 4.1-12.9% ofa compatilizer, 0.1-0.4% of a main antioxidant, 0.1-0.2% of an auxiliary antioxidant, 0.2-0.5% of an assistant A, 0.3-0.5% of an assistant B and 0.2-0.5% of a lubricating dispersant. The invention also provides a preparation method of the composite material.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a composite material of a medical stop liquid clip and a preparation method thereof. Background technique [0002] Liquid stop clamp is a common small medical tool, which is opened or closed by being clamped on the infusion tube to control the flow of liquid in the infusion tube. At present, the liquid stop clamps on the market are mainly made of polyoxymethylene and ABS plastic (acrylonitrile-butadiene-styrene). Polyoxymethylene has good mechanical properties and good resilience, but its The pungent fishy smell and harm to the human body are contrary to the current green environmental protection and health advocated by the country; ABS plastic has good mechanical properties, but its resilience is extremely poor, it is easy to break at low temperatures, and its life is short. At present, similar products have bad feedback from the market Very much. Conte...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L77/00C08L23/08C08L91/06C08K13/02C08K5/00C08K3/01
CPCC08L23/12C08L2201/08C08L2205/035C08L2205/08C08L2205/14C08L77/00C08L23/0869C08L91/06C08K13/02C08K5/0083C08K3/00
Inventor 李宏杰薛刚刘福平于晓璐许世达
Owner 威海联桥新材料科技股份有限公司
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