Polyvinyl chloride material with high oxygen permeability and preparation method thereof

A technology of polyvinyl chloride and polyvinyl chloride resin, applied in the field of modified polyvinyl chloride materials and their preparation, can solve the problems of difficult processing of PVC materials, short survival time of platelets, high melt viscosity, etc., to ensure safety, Ensure low temperature resistance and extraction resistance, and improve air permeability
CN104045935AInactive Publication Date: 2014-09-17上海新上化高分子材料有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海新上化高分子材料有限公司
Publication Date
2014-09-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a polyvinyl chloride material with high oxygen permeability and a preparation method thereof. The polyvinyl chloride material with high oxygen permeability comprises the following components in parts by weight: 60 parts of polyvinyl chloride resin with super-high molecular weight, 30-40 parts of polyvinyl chloride resin with middle molecular weight, 40-80 parts of plasticizer TOTM (Trioctyl Trimellitate), 5-20 parts of plasticizer DOA (Dioctyl Adipate), 0-20 parts of plasticizer DOS (Dioctyl Sebacate), 3-10 parts of secondary plasticizer and 0.5-5 parts of calcium and zinc thermal stabilizer. The basic resin used in the material disclosed by the invention is polyvinyl chloride resin which has high oil absorption and is prepared by a super-high molecular weight and middle molecular weight suspension method, the plasticizer TOTM with low mobility is selected, the cold-resistant plasticizers DOA and DOS are compounded in use, and epoxy plant oil plasticizer with the thermal stabilizing effect is used as an assistant, so that the low-temperature resistance and extraction resistance of the product are ensured, and the material has a high gas exchange rate and characteristic of high oxygen permeability and is suitable for blood storage, and particularly suitable for storage of blood platelets. The prepared PVC material with high oxygen permeability can make sure that blood platelets can be stored for 7 days at 22 DEG C, so that the material is suitable for preparation of blood platelet storage bags.
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Description

Technical field

[0001] The invention relates to a modified polyvinyl chloride (PVC) material and a preparation method thereof. Background technique

[0002] Polyvinyl chloride (PVC) is widely used in various fields due to its low cost and good comprehensive performance, and is currently one of the most widely used plastics. Plasticized PVC can also be used as a packaging material for whole blood, red blood cells and platelets. With the development of the medical industry and the accumulation of clinical experience and data, PVC has elasticity, migration resistance, volatility, Low temperature resistance, high temperature disinfection and stickiness, etc., due to insufficient air permeability when platelets are stored, limit its application in disposable medical appliances.

[0003] The most commonly used plasticizer for PVC materials is dioctyl phthalate (DOP), and citrate plasticizers are often used for blood preservation. At present, PVC-DOP is the most widely used for whole bl...

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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