Odorless TPE (Thermoplastic Elastomer) material for medical oxygen delivery hose and preparation method thereof

A hose and oxygen delivery technology, applied in the field of odorless medical oxygen delivery hose TPE material and its preparation, can solve the problems of large rubber smell, breeding of bacteria, high processing temperature of TPE material, and achieve good resilience and compression deformation resistance. Soft touch, excellent antibacterial effect

Inactive Publication Date: 2018-10-19
SHENZHEN XUANLI PLASTIC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN105327404A discloses a TPE composition and a method for preparing a high-performance medical catheter prepared therefrom. However, the patented material cannot meet the ISO 10993 medical related test requirements due to the filling of a large amount of white mineral oil, and the surface is relatively sticky. It is easy to adhere to dust and breed bacteria, and the ordinary TPE material has a large rubber smell due to the high processing temperature, so it cannot be used as a comfortable oxygen delivery tube material

Method used

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  • Odorless TPE (Thermoplastic Elastomer) material for medical oxygen delivery hose and preparation method thereof

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preparation example Construction

[0024] The present invention is specifically described below in conjunction with accompanying drawing, as figure 1 Shown, a kind of tasteless type medical oxygen hose TPE material and preparation method thereof, comprise the component of following parts by weight:

[0025] Styrene thermoplastic elastomer 20-50 parts

[0026] Olefin block copolymer (OBC) 30-50 parts

[0027] Linear low density polyethylene (LLDPE) 10-40 parts

[0028] Slippery agent 0.2-0.5 parts

[0029] Deodorant 0.1-0.5 parts

[0030] Antibacterial agent 0.05-0.2 parts

[0031] Antistatic agent 0.1-0.6 parts;

[0032] The styrenic thermoplastic elastomer is styrene-ethylene-butylene-styrene block copolymer (SEBS), styrene-isoprene-styrene block copolymer (SIS), styrene-ethylene- At least one of ethylene-propylene-styrene block copolymers (SEEPS); the olefin block copolymers (OBC) used are segments of crystallizable ethylene-octene with low comonomer content and high melting temperature ( hard segment)...

Embodiment 1

[0035] A kind of tasteless type medical oxygen hose TPE material, comprises the following components by weight:

[0036] SEBS 30 parts

[0037] Olefin block copolymer (OBC) 25 parts

[0038] Linear low density polyethylene (LLDPE) 35 parts

[0039] Oleic acid amide 0.2 parts

[0040] Porous aluminum-silicon-organic mixture particles 0.2 parts

[0041] Polyhexamethylene (bis)arc carbonate 0.1 part

[0042] Antistatic agent 0.5 parts.

[0043] The odorless medical oxygen hose TPE material is prepared through the following steps:

[0044] (1) According to the proportion of each component in the formula, put it into the high mixer after weighing, and stir and mix for 10 minutes to obtain a uniform premix;

[0045] (2) Put the above-mentioned premix into a twin-screw extruder to extrude and granulate, and the extrusion temperature range is 130-170°C; wherein, the temperatures of the first zone to the eighth zone of the twin-screw extruder are respectively: 130°C, 150°C, 160°...

Embodiment 2

[0047] A kind of tasteless type medical oxygen hose TPE material, comprises the following components by weight:

[0048] SIS 25 copies

[0049] Olefin block copolymer (OBC) 40 parts

[0050] Linear low density polyethylene (LLDPE) 25 parts

[0051] Zinc stearate 0.3 parts

[0052] Zinc ricinoleate porous particles 0.3 parts

[0053] Polyhexamethylene (bis) arc laurate 0.1 part

[0054] Antistatic agent 0.4 part.

[0055] The odorless medical oxygen hose TPE material is prepared through the following steps:

[0056] (1) According to the proportion of each component in the formula, put it into the high mixer after weighing, and stir and mix for 10 minutes to obtain a uniform premix;

[0057] (2) Put the above-mentioned premix into a twin-screw extruder to extrude and granulate, and the extrusion temperature range is 130-170°C; wherein, the temperatures of the first zone to the eighth zone of the twin-screw extruder are respectively: 130°C, 140°C, 150°C, 160°C, 160°C, 160°...

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Abstract

The invention discloses an odorless TPE (Thermoplastic Elastomer) material for a medical oxygen delivery hose and a preparation method thereof. The odorless TPE material is prepared from the followingcomponents in parts by weight: 20 to 50 parts of styrene thermoplastic elastomer, 30 to 50 parts of olefin block copolymer (OBC), 10 to 40 parts of linear low density polyethylene (LLDPE), 0.2 to 0.5part of smoothing agent. 0.1 to 0.5 part of deodorant, 0.05 to 0.2 part of antibacterial agent and 0.1 to 0.6 part of antistatic agent. The prepared TPE material has the advantages of completely no odor, excellent flexible touch, high resilience, high compression resistance and excellent antimicrobial, antistatic and dust-proof properties, and can be widely applied to medical oxygen delivery hoseproducts. The medical oxygen delivery hose has the beneficial effects of simple structure and high practicability.

Description

technical field [0001] The invention relates to the technical field of thermoplastic elastomer materials, in particular to an odorless medical oxygen delivery hose TPE material and a preparation method thereof. Background technique [0002] Clinically, for critically ill patients who need oxygen infusion, pregnant women, the elderly and other people who are prone to hypoxia, nasal plug or face mask oxygen tube devices are generally used for assisted breathing. The oxygen tube device is mainly composed of an oxygen tube hose and a nasal plug or a mask. At present, the common oxygen tube hose materials are mostly made of latex and polyvinyl chloride (PVC) materials. However, latex materials are not resistant to aging, are prone to cracking, and have poor transparency; while PVC materials contain plasticizers that are harmful to the human reproductive system, and the residual vinyl chloride monomer will also damage the human nervous system, embryos, etc., and burning will produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L53/02C08L53/00C08K5/20C08K7/22C08K5/098
CPCC08L23/0815C08L53/00C08L2203/18C08L2205/035C08L2201/04C08L2201/10C08L53/025C08K5/20C08K7/22C08L53/02C08K5/098
Inventor 谢艳红廖辉钟沛
Owner SHENZHEN XUANLI PLASTIC SCI & TECH
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