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A kind of silicone rubber masterbatch, silicone rubber and preparation method thereof

A technology of silicone rubber and masterbatch, which is applied in catheters and other directions, can solve problems such as difficulty in tracheal intubation and unprepared operators, and achieve the effect of improving physical properties, improving transparency, and improving physical properties

Active Publication Date: 2021-07-23
XINAN TIANYU SILICONE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Clinically, it is often encountered that the appearance is normal, but the unforeseen difficulty in endotracheal intubation often makes the operator caught off guard and feels troublesome.

Method used

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  • A kind of silicone rubber masterbatch, silicone rubber and preparation method thereof
  • A kind of silicone rubber masterbatch, silicone rubber and preparation method thereof
  • A kind of silicone rubber masterbatch, silicone rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A silicone rubber used to meet the requirements of medical laryngeal mask tubes, the components in parts by weight of the rubber material are as follows:

[0071] Masterbatch

[0072]

[0073] secondary cooling

[0074] (1) Glue A:

[0075] Masterbatch: 100 parts;

[0076] 2 parts of highly active platinum complex catalyst (platinum content is 15000ppm);

[0077] (2) B glue:

[0078] Masterbatch: 100 parts;

[0079] Hydrogen-containing silicone oil additive 1 (the content of the total hydrogen content is 70%, the hydrogen-containing type is 1.0%, and the kinematic viscosity is 30cs) 3 parts;

[0080] Hydrogen-containing silicone oil additive 2 (the total hydrogen content is 70%, the type of hydrogen content is 0.5%, and the kinematic viscosity is 35cs) 1 part;

[0081] Inhibitor auxiliary (ethynyl cyclohexanol accounts for 0.1% of the total weight of the inhibitor auxiliary, dodecynol accounts for 0.1% of the total weight of the inhibitor auxiliary) 0.5 parts; ...

Embodiment 2

[0092] A silicone rubber used to meet the requirements of medical laryngeal mask tubes, the components in parts by weight of the rubber material are as follows:

[0093] Masterbatch

[0094]

[0095] secondary cooling

[0096] (1) Glue A:

[0097] Masterbatch: 100 parts;

[0098] 2.5 parts of highly active platinum complex catalyst (platinum content is 5000-20000ppm);

[0099] (2) B glue:

[0100] Masterbatch: 100 parts;

[0101] Hydrogen-containing silicone oil additive 1 (70% of total hydrogen content, 1.0% of hydrogen-containing species, kinematic viscosity of 30cs) 4.5 parts;

[0102] Hydrogen-containing silicone oil additive 2 (70% of total hydrogen content, 0.5% of hydrogen content, kinematic viscosity of 35cs) 1.5 parts;

[0103] Inhibitor auxiliary (ethynyl cyclohexanol accounts for 0.1% of the total weight of the inhibitor auxiliary, dodecynol accounts for 0.1% of the total weight of the inhibitor auxiliary) 0.5 parts;

[0104] Put the raw materials used for...

Embodiment 3

[0114] A silicone rubber used to meet the requirements of medical laryngeal mask tubes, the components in parts by weight of the rubber material are as follows:

[0115] Masterbatch

[0116]

[0117]

[0118] secondary cooling

[0119] (1) Glue A:

[0120] Masterbatch: 100 parts;

[0121] 2.5 parts of highly active platinum complex catalyst (platinum content is 5000-20000ppm);

[0122] (2) B glue:

[0123] Masterbatch: 100 parts;

[0124] Hydrogen-containing silicone oil additive 1 (the content of the total hydrogen content is 70%, the hydrogen-containing type is 1.0%, and the kinematic viscosity is 30cs) 4 parts;

[0125] Hydrogen-containing silicone oil additive 2 (the total hydrogen content is 70%, the type of hydrogen content is 0.5%, and the kinematic viscosity is 35cs) 1 part;

[0126] Inhibitor auxiliary (ethynyl cyclohexanol accounts for 0.15% of the total weight of the inhibitor auxiliary, dodecynol accounts for 0.1% of the total weight of the inhibitor au...

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Abstract

The invention belongs to the field of silicone rubber, and discloses a silicone rubber masterbatch, which contains the following components in parts by weight: methyl vinyl silicone rubber raw rubber 80 with a vinyl molar content of 0.03% to 0.23% and a molecular weight of 600,000-800,000 ‑90 parts; 7‑16 parts of methyl vinyl silicone rubber raw rubber with a vinyl molar content of 1% to 5% and a molecular weight of 600,000 to 800,000; a vinyl molar content of 3% to 10% and a molecular weight of 600,000 to 800,000 1.5-5 parts of raw methyl vinyl silicone rubber; 0.5-1.5 parts of vinyl silicone oil with a vinyl molar content of 5% to 30% and a viscosity of 10,000 to 100,000; 51 to 63 parts of fumed white carbon black; hydroxyl silicone oil 10-13 parts; 1-2 parts of vinyl hydroxy silicone oil; 4-7 parts of dimethyldimethoxysilane; 4-5 parts of dimethyldiethoxysilane; 0.5-1 part of purified water; release agent 0.1 to 0.2 parts. The silicone rubber prepared from the silicone rubber masterbatch can meet the requirements of the medical laryngeal mask tube to maintain a good curvature of the product, good appearance transparency, no bubbles, no gel, and good aging performance for long-term use. At the same time, the invention also provides a preparation method of the silicone rubber.

Description

technical field [0001] The invention relates to the technical field of silicone rubber, in particular to a silicone rubber masterbatch, silicone rubber and a preparation method thereof. Background technique [0002] Medical silicone rubber catheter is the fastest growing and most widely used product among medical silicone rubber products. Medical silicone rubber catheters can be divided into two types: in vitro and in vivo according to their uses: mainly used in vitro are all kinds of pump tubes, such as artificial heart-lung machine pump tubes, connecting tubes with various equipment, infusion tubes in pharmaceutical factories, etc.; Various types of laryngeal mask tubes, intubation tubes, catheters, drainage tubes, etc. are used in the body, such as blood vessels, venous catheters, peritoneal dialysis tubes, otitis media ventilation tubes, and nasal cannulae. [0003] Laryngeal Mask Airway (LMA) was developed by British doctor Brain in 1981 based on the anatomical structu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/40A61L29/14A61L29/06A61L29/02C08L83/07C08L83/06C08L83/05C08K5/5419C08K3/36C08K5/098C08K5/09B29C35/02
Inventor 成扬杰潘汉新吴家伟陈桂忠周游李凯贾飞
Owner XINAN TIANYU SILICONE CO LTD
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