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A kind of preparation technology of high light transmittance sample tube

A technology with high light transmittance and preparation technology, which is applied in the field of sample tubes, can solve the problems of easy impact or abrasion, loss of superhydrophobic properties, etc., and achieve the effect of improving adhesion, good ultraviolet shielding performance, and high light transmittance

Active Publication Date: 2022-07-26
HANGZHOU ANYU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the adhesion between the coating and the substrate is not strong, and the rough structure of the surface is too fragile, it is easy to be impacted or worn, and the superhydrophobic property will be lost

Method used

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  • A kind of preparation technology of high light transmittance sample tube
  • A kind of preparation technology of high light transmittance sample tube
  • A kind of preparation technology of high light transmittance sample tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A composite material comprising compound I, which is prepared as follows:

[0032] Add 1 mol of chloromethyltriethoxysilane and 1 mol of triethylamine into a four-necked flask with a reflux device, a thermometer, and a dropping funnel, start a strong stirrer, and add 1 mol of 6-[ (2-Amino-2-methylpropyl)amino]-N,N-dimethyl-3-pyridinecarboxamide, the temperature was gradually raised to 75°C, and the reaction was refluxed for 6h; the amine salt precipitate was removed by suction filtration, and the filtrate was decompressed. Distillation and purification to obtain compound I; the entire reaction process is nitrogen protected and strictly waterproof. The structural formula of compound I is:

[0033]

[0034] The preparation of a high light transmittance test tube, comprising the following steps:

[0035] Step 1: Pretreatment of the surface of the sample tube, firstly, the commercially available sample tube is cleaned in order to remove oil and organic impurities;

[...

Embodiment 2

[0040] The difference between the preparation of a composite material and Example 1 is: chloromethyltriethoxysilane, triethylamine and 6-[(2-amino-2-methylpropyl)amino]-N,N - The molar ratio of dimethyl-3-pyridinecarboxamide was 1:1.08:0.99.

[0041] The difference between the preparation of a high transmittance test tube and Example 1 is:

[0042] In step 3, the mass ratio of absolute ethanol, MTES, composite material, HCl, and deionized water is 15.8:1.34:1:0.14:0.84;

[0043] In step 4, the mass ratio of the hybrid silica sol, the organosilicon oligomer and the absolute ethanol is 1:0.11:4.7.

Embodiment 3

[0045] A composite material comprising compound II, which is prepared as follows:

[0046] Add 1mol of chloromethyltriethoxysilane and 1mol of triethylamine into a four-necked flask with a reflux device, a thermometer, and a dropping funnel, start a strong stirrer, and dropwise add 1mol of 2-amino to the flask within 30min -N-(2-(2,5-dimethoxyphenyl)-2-hydroxyethyl)acetamide, the temperature was gradually raised to 75°C, and the reaction was refluxed for 6h; the amine salt precipitate was removed by suction filtration, and the filtrate was distilled under reduced pressure After purification, compound II is obtained; the whole reaction process is protected by nitrogen and strictly waterproof. The structural formula of compound II is shown below:

[0047]

[0048] The difference between the preparation of a high light transmittance test tube and Example 1 is that the composite material in step 3 is the composite material prepared in this example.

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Abstract

The invention discloses a process for preparing a sample tube with high light transmittance, and relates to the technical field of sample tubes. The fumed nano-silica is added to anhydrous ethanol, after ultrasonic dispersion, TEOS and HMDS are added, and after stirring, deionized water is added to react to obtain a hybrid silica sol; step 3: preparation of organosilicon oligomers, weigh anhydrous Ethanol, adding MTES, composite material, HCl, deionized water, stirring and reacting to obtain organosilicon oligomers; Step 4: weighing hybrid silica sol, adding absolute ethanol and organosilicon oligomers to obtain superhydrophobic composite coatings; Then, the sample tube was immersed in it, pulled to form a film, and then dried to obtain a superhydrophobic composite coating. The sample tube prepared by the invention has super-hydrophobicity, high light transmittance, and excellent mechanical durability; meanwhile, it also has a certain ultraviolet shielding effect.

Description

technical field [0001] The invention belongs to the technical field of sample tubes, and in particular relates to a preparation process of a sample tube with high light transmittance. Background technique [0002] A superhydrophobic surface generally refers to a surface with a water contact angle greater than 150° and a rolling angle less than 10°. Superhydrophobic surfaces have attracted extensive interest from researchers because of their great potential applications in self-cleaning, anti-corrosion, oil-water separation, and fluid drag reduction. In recent years, transparent superhydrophobic coatings have good application prospects in optical devices, solar panels and other materials due to their high light transmittance and little impact on the appearance of substrates, and have become a hot research topic. [0003] There are usually two key factors in constructing superhydrophobic surfaces: one is to have a low surface energy, and the other is to have a certain roughne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D183/08
CPCC09D1/00C09D183/08
Inventor 方涌章贤骏翟致超张发科
Owner HANGZHOU ANYU TECH CO LTD