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A kind of production method of modified anti-scale and slow-release material

A production method and anti-scaling and anti-corrosion technology, applied in the field of materials, can solve the problems of uneven heating, explosion, corrosion and other problems of appliances, and achieve the effect of good controllability of release speed

Active Publication Date: 2021-11-09
GUANGZHOU LIANFU NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Secondly, scale not only causes serious energy waste, but also easily leads to local corrosion of household appliances, kettles, water dispensers, aluminum pots, solar water heaters, electric water heaters, thermos bottles, household heating furnaces, hotel boilers, self-heating heating furnaces, and even perforation and scrapping , What's more, the uneven heating of the appliance will cause an explosion, resulting in bad consequences

Method used

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  • A kind of production method of modified anti-scale and slow-release material
  • A kind of production method of modified anti-scale and slow-release material
  • A kind of production method of modified anti-scale and slow-release material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0166] Step 1. Obtain nano-hydroxyapatite (purchased from Shanghai McLean Biochemical Technology Co., Ltd.), the product information is as follows:

[0167] Table 1

[0168]

[0169] Step 2, drying the nano-hydroxyapatite at 120° C. for 3 hours in a vacuum drying oven to obtain the dried nano-hydroxyapatite. Disperse 100 g of dried nano-hydroxyapatite in 500 ml of N-ethylpyrrolidone (NEP).

[0170] Step 3, add 0.2g palmitoyl chloride (>96% (T)), 20g maleic anhydride (>99% (GC)) to the product of the previous step, and react at normal temperature and pressure for 5 hours.

[0171] In step 3, a representative chemical reaction formula of nano-hydroxyapatite and maleic anhydride is as follows (I). A representative chemical reaction formula of nano-hydroxyapatite and palmitoyl is as follows (II).

[0172]

[0173] In formula (I), maleic anhydride reacts with hydroxyapatite to obtain hydroxyapatite grafted with maleic acid on the surface. One carboxyl group of maleic acid...

Embodiment 2

[0184] The steps of the production method of the modified scale and corrosion inhibiting material are as follows:

[0185] Step 1. Mineral crushing and grinding: In the clean workshop, high-purity calcite or hydroxyapatite or quartz stone or suitable inorganic materials (purity ≥ 99.9%) and other large specific surface area active materials are crushed to 320 Mesh, and then use the nano grinder to grind the pulverized material to 15-60nm or directly purchase the nano-scale material that meets the requirements;

[0186] Step 2. Mineral material dehydration and dispersion: the above-mentioned micropowder is dehydrated under reduced pressure at 120 degrees for 3 hours in a high-temperature vacuum drying oven, mixed with an appropriate amount of organic solvent, added to the reaction kettle and stirred repeatedly to make it evenly dispersed;

[0187] Step 3. Mixing reaction: add an appropriate amount of modifiers to the above dispersion liquid, such as octadecyltrichlorosilane, pa...

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Abstract

A composite material and its preparation method and application. The composite material includes a scale-inhibiting body, and the scale-inhibiting body includes a matrix on which scale-inhibiting functional groups are grafted; the solubility of the matrix in water is less than or equal to 100g / L. As a scale inhibitor, the composite material has the effect of sustained release and high efficiency.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a composite material and a preparation method thereof. Background technique [0002] As we all know, fouling problem is a worldwide problem. [0003] First of all, the thermal conductivity of scale is very poor, and its thermal conductivity is dozens or even hundreds of times smaller than that of metal. Experiments have shown that when the heat exchange surface is scaled, the thermal conductivity will decrease by 20%-30% for every 1mm scale increase, that is, the power consumption will increase by 20%-30%. When the scale thickness reaches 12.7mm, it consumes 70% more energy. [0004] Secondly, scale not only causes serious energy waste, but also easily leads to local corrosion of household appliances, kettles, water dispensers, aluminum pots, solar water heaters, electric water heaters, thermos bottles, household heating furnaces, hotel boilers, self-heating heating furnace...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/14C08F291/12C08F291/08C08F226/06C23F11/08
CPCC02F5/14C02F2303/08C08F261/04C08F271/02C23F11/08C08F226/06Y02W10/37
Inventor 贾非
Owner GUANGZHOU LIANFU NEW MATERIALS TECH CO LTD
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