Long-life silicon rubber for peristaltic pump pipes and preparation method of long-life silicon rubber

A silicone rubber and peristaltic pump technology, which is applied in the field of high-life silicone rubber for peristaltic pump tubes and its preparation, can solve the problems of inability to transport fluid, poor elasticity, wear resistance and poor pressure bearing capacity, and achieve improved elasticity and dynamic resistance Fatigue performance, improvement of dynamic fatigue resistance, and uniform distribution of reinforcing force

Active Publication Date: 2016-07-13
东莞市贝特利新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, rubber has poor temperature resistance and is easy to age, so it is not suitable for high temperature and long-term use; plastic and synthetic materials have poor elasticity and high precipitates, and the service life of hoses is short and cannot be used in high-demand industries such as food and medical treatment; although traditional silicone rubber It has the excellent and unique characteristics of silicone rubber, but its wear resistance and pressure bearing capacity are poor, resulting in a short service life of the hose. If a peroxide vulcanized hose is used, it will stick and fail to transport fluid

Method used

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  • Long-life silicon rubber for peristaltic pump pipes and preparation method of long-life silicon rubber
  • Long-life silicon rubber for peristaltic pump pipes and preparation method of long-life silicon rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A high-life silicone rubber for peristaltic pump tubes in this embodiment includes the following raw materials in parts by mass:

[0052] 60 parts of methyl vinyl polysiloxane

[0053] 40 parts of reinforcing filler

[0054] Structure control agent 1 part

[0055] 0.2 parts of hydrosilylation catalyst

[0056] 0.5 parts of crosslinking agent

[0057] Inhibitor 0.05 parts

[0058] Release agent 0.1 part.

[0059] Wherein, the mass ratio of the methyl vinyl polysiloxane with vinyl-terminated side chain permethyl to the vinyl-containing methyl vinyl polysiloxane in the methyl-terminated side chain is 1:2 .

[0060] Wherein, the reinforcing filler is a mixture of fumed silica and precipitated silica at a mass ratio of 90:10. The BET method specific surface area of ​​described fumed white carbon black is 200m 2 / g, the BET method specific surface area of ​​the precipitated white carbon black is 150m 2 / g.

[0061] Wherein, the molecular structure of the structural ...

Embodiment 2

[0070] A high-life silicone rubber for peristaltic pump tubes in this embodiment includes the following raw materials in parts by mass:

[0071] Methyl vinyl polysiloxane 150 parts

[0072] 60 parts of reinforcing filler

[0073] Structure control agent 12 parts

[0074] 1 part of hydrosilylation catalyst

[0075] 2 parts of crosslinking agent

[0076] Inhibitor 0.2 parts

[0077] 0.6 parts of mold release agent.

[0078] Wherein, the mass ratio of the methyl vinyl polysiloxane of the vinyl-terminated side chain permethyl to the vinyl-containing methyl vinyl polysiloxane of the methyl-terminated side chain is 3:1 .

[0079] Wherein, the reinforcing filler is a mixture of fumed silica and precipitated silica at a mass ratio of 95:5. The BET method specific surface area of ​​described fumed white carbon black is 300m 2 / g, the BET method specific surface area of ​​the precipitated white carbon black is 150m 2 / g.

[0080] Wherein, the molecular structure of the structu...

Embodiment 3

[0089] A high-life silicone rubber for peristaltic pump tubes in this embodiment includes the following raw materials in parts by mass:

[0090] Methyl vinyl polysiloxane 80 parts

[0091] 45 parts of reinforcing filler

[0092] Structure control agent 3 parts

[0093] 0.3 parts of hydrosilylation catalyst

[0094] 0.6 parts of crosslinking agent

[0095] Inhibitor 0.08 part

[0096] Release agent 0.3 part

[0097] Additive 0.05 part.

[0098] Wherein, the mass ratio of the vinyl-terminated side chain permethyl methyl vinyl polysiloxane to the methyl-terminated side chain vinyl-containing methyl vinyl polysiloxane is 1:1 .

[0099] Wherein, the additive is a six-membered ring compound containing a carbon-nitrogen unsaturated bond.

[0100] Wherein, the reinforcing filler is a mixture of fumed silica and precipitated silica at a mass ratio of 91:9. The BET method specific surface area of ​​described fumed white carbon black is 220m 2 / g, the BET method specific surfac...

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Abstract

The invention relates to the field of organic silicon high-polymer materials, in particular to long-life silicon rubber for peristaltic pump pipes and a preparation method of the long-life silicon rubber. The silicon rubber is prepared from raw materials in parts by mass as follows: 50-150 parts of methyl vinyl polysiloxane, 40-60 parts of reinforcing filler, 1-12 parts of a structurized control agent, 0.1-1.0 part of a hydrosilylation catalyst, 0.5-2 parts of a cross-linking agent, 0.05-0.2 parts of an inhibitor and 0.1-0.6 parts of a release agent, wherein the methyl vinyl polysiloxane is a mixture formed by mixing vinyl-terminated methyl vinyl polysiloxane with all side chains being methyl groups and methyl-terminated methyl vinyl polysiloxane with side chains containing vinyl groups in any mass ratio. The silicon rubber for the peristaltic pump pipes has excellent weather resistance, temperature resistance and biocompatibility of silicon rubber, and the molded silicon rubber pipes have very long service life and are good in wear resistance and pressure bearing capability.

Description

technical field [0001] The invention relates to the field of organosilicon polymer materials, in particular to a high-life silicone rubber for peristaltic pump tubes and a preparation method thereof. Background technique [0002] The peristaltic pump hose is an important accessory of the peristaltic pump, mainly used to transport the mixture of liquid, gas, liquid and gas, and liquid and solid. Existing hose materials mainly include rubber, plastics, synthetic materials, silicone rubber and the like. Among them, rubber has poor temperature resistance and is easy to age, so it is not suitable for high temperature and long-term use; plastic and synthetic materials have poor elasticity and high precipitates, and the service life of hoses is short and cannot be used in high-demand industries such as food and medical treatment; although traditional silicone rubber It has the excellent and unique characteristics of silicone rubber, but its wear resistance and pressure bearing cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/06C08L83/05C08K13/02C08K5/549C08K3/36C08K5/5415C08J3/24
CPCC08J3/24C08J2383/04C08K2201/006C08K2201/014C08L83/04C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L83/06C08K13/02C08K5/549C08K3/36C08K5/5415
Inventor 周桂明殷永彪何循派何冠森
Owner 东莞市贝特利新材料有限公司
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