Silicone rubber masterbatch, silicone rubber and preparation method of silicone rubber

Abstract

The invention belongs to the field of silicone rubber, and discloses silicone rubber masterbatch. The silicone rubber masterbatch comprises the following components in parts by weight of: 80-90 partsof polysiloxanes di-Me Me vinyl vinyl group-terminated crude rubber of which the vinyl mol content is 0.03%-0.23% and the molecular weight is 600-800 thousands, 7-16 parts of the polysiloxanes di-Me Me vinyl vinyl group-terminated crude rubber of which the vinyl mol content is 1%-5% and the molecular weight is 600-800 thousands, 1.5-5 parts of the polysiloxanes di-Me Me vinyl vinyl group-terminated crude rubber of which the vinyl mol content is 3%-10% and the molecular weight is 600-800 thousands, 0.5-1.5 parts of of silicone oil of which the vinyl mol content is 5%-30% and the stickiness is 10-100 thousands, 51-63 parts of fumed silica, 10-13 parts of hydroxyl silicone oil, 1-2 parts of vinyl hydroxyl silicone oil, 4-7 parts of dimethyl dimethoxy silicane, 4-5 parts of dirthoxydimethylsilane, 0.5-1 part of pure water; and 0.1-0.2 part of a demoulding agent. The silicone rubber obtained from the silicone rubber masterbatch can meet the requirements of medical throat hood pipes for goodshaping bending degree, good appearance transparency, freedom from bubbles, freedom from gelatin of products, and good ageing performance after being used for a long term. Besides, the invention further 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] The Laryngeal Mask Airway (LMA) was developed by British doctor Brain in 1981 based on the anatomical str...

Examples

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...

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] The Laryngeal Mask Airway (LMA) was developed by British doctor Brain in 1981 based on the anatomical str...

Examples

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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