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End-capped multipurpose antibacterial organic silicon resin and preparation method thereof

A silicone, multi-purpose technology, applied in the field of end-capped multi-purpose antibacterial silicone resin and its preparation, can solve the problems of loss of mechanical properties, weather resistance, poor life, damage, etc., to ensure isotropy, good The effect of surface activity and dispersibility, biodegradation resistance and heat aging resistance improvement

Inactive Publication Date: 2020-06-26
四川景文材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to: belong to organic macromolecule at resin matrix, have the macromolecule characteristic of biodegradability and heat-resistant antiaging property not good, and improve by adopting antimicrobial agent and ultraviolet absorber to existing technology, but because The migration of antibacterial agents and UV absorbers causes local defects and local damage. Although the addition of some additives can disperse and infiltrate well, it also causes the loss of mechanical properties, resulting in poor antibacterial properties, weather resistance and poor service life. The invention provides a capped multi-purpose antibacterial silicone resin and its preparation method

Method used

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  • End-capped multipurpose antibacterial organic silicon resin and preparation method thereof
  • End-capped multipurpose antibacterial organic silicon resin and preparation method thereof
  • End-capped multipurpose antibacterial organic silicon resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] First, the flexible monomer and the rigid monomer are added into the three-necked flask in a ratio of 4:6 (mass parts) with a total mass of 80 parts, the sealing device is filled with nitrogen and heating is started, and then the mass of aminosilane (n=1, m=1) is added Part 10 and sodium bicarbonate solution concentration 20% mass part 10, heat up to 80-86 degrees Celsius, react for 4 hours (at this time the monomer conversion rate reaches about 85%), viscosity 1200mPa.s ~ 1400mPa.s, add acetic acid to neutralize to The pH value is 6.8-7; the low-boiler is distilled off after vacuum distillation for 2-2.5 hours, and a transparent and viscous end-capped multi-purpose silicone resin is obtained. Stop stirring and cool down to 25°C, weigh. Based on the weighed value, add absolute ethanol into three ports according to the ratio of end-capping multi-purpose silicone resin: alkylation reagent W: absolute ethanol = 60:10:30 Start the agitator in the flask, slowly raise the tem...

Embodiment 2～6

[0041] Compared with Example 1, only the ratios of flexible monomers to rigid monomers and flexible monomers to rigid monomers were changed.

[0042] Table 1 Embodiment 2~6 flexible monomer and rigid monomer ratio value

[0043]

[0044]

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Abstract

The invention discloses end-capped multipurpose antibacterial organic silicon resin and a preparation method thereof. The organic silicon resin comprises the following raw materials, by weight: 0 to 100 parts of siloxane flexible monomer, 0 to 100 parts of siloxane rigid monomer, 5 to 10 parts of amino silane, 5 to 12 parts of alkylation reagent W and 5 to 12 parts of quaternization reagent. The organic silicon has the characteristics of organic macromolecules and inorganic materials and has the characteristics of biodegradation resistance, heat resistance and aging resistance; after an antibacterial and bactericidal group is grafted to a main chain of the organic silicon, the biodegradation resistance, the heat resistance and the aging resistance of the organic silicon are remarkably improved, and local defects do not exist; the resin has cations and has high surface activity and dispersibility, pigments and fillers can be well dispersed without adding a dispersing agent, and isotropyof a composite material (without fibers) can be guaranteed; meanwhile, the resin structure can be adjusted to obtain resin with different hardness, The end-capped multipurpose antibacterial organic silicon resin and the preparation method thereof can be applied to different fields.

Description

technical field [0001] The invention belongs to the technical field of chemical synthesis, and in particular relates to a capped multipurpose antibacterial silicone resin and a preparation method thereof. Background technique [0002] Organic composite materials are the result of the composite action of resin, functional fillers, various additives, curing agents and catalysts, and their main performance is largely determined by the structure and physical and chemical properties of the resin. Resin modification is generally done by physical mixing techniques of different resins. Organic composite materials are widely used in the field of composite materials because of their low cost, convenient source of raw materials, and simple process. [0003] In recent years, the technology of obtaining high-performance organic composite materials through resin modification has been widely used. Organic composite materials mainly include matrix materials, functional fillers, dispersant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/44C08G77/16C08G77/26C08G77/06
CPCC08G77/06C08G77/16C08G77/26C08G77/44C08G77/80
Inventor 王兴财王玉树王森王鑫
Owner 四川景文材料科技有限公司
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