Special N-phthalate reinforced soft polyethylene plastics for circulation loop and preparation method thereof

A soft polyvinyl chloride, recycling loop technology
CN101798428AInactive Publication Date: 2010-08-11YANGZHOU KAIER CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YANGZHOU KAIER CHEM
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses special N-phthalate reinforced soft polyethylene plastics for a circulation loop, which comprises the following ingredients by weight parts: 100 weight parts of PVC resin powder, 20 to 50 weight parts of N-phthalate plasticizers, 5 to 35 weight parts of auxiliary stabilizing agents, 0.5 to 5.0 weight parts of stabilizing agents, 0.1 to 2.0 weight parts of lubricating agents and 0.1 to 1.0 weight part of antioxidants. The invention also discloses a preparation method of the special N-phthalate reinforced soft polyethylene plastics for the circulation loop. The method comprises the following steps: carrying out high-speed mixing on ingredients; using a double-screw extruding machine for plastification; and using a single screw for cooling and forming to obtain rubber grains. The recipe of the invention is suitable for the manufacture of the circulation loop, particularly the varieties with high processing precision and long operation time and the varieties needing ray sterilization.
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Description

technical field

[0001] The invention relates to a medical polymer material and a preparation method thereof, in particular to an improved non-phthalic plasticized soft polyvinyl chloride plastic specially used for an improved circulation loop and a preparation method thereof. Background technique

[0002] PVC has many advantages such as high strength and modulus, softness, good resilience, transparency and low price, so it is the main material for making disposable medical infusion devices. Plasticized soft PVC has been widely used in the production of infusion sets, blood bags, catheters, respiratory masks, enteral nutrition tubes, peritoneal dialysis bags, extracorporeal circulation lines, membrane oxygenators, hemodialysis lines and various Disposable medical infusion devices such as medical catheters. The inherent properties such as hardness and flexibility of pure PVC materials can be improved by adding plasticizers. Various plasticizers can be used to soften PVC, how...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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