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Materials and methods

A technology of substrate and polysaccharide, applied in chemical instruments and methods, separation methods, starch coatings, etc., can solve problems such as heat transfer resistance

Inactive Publication Date: 2015-12-02
UNIVERSITY OF MELBOURNE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scale that sits on the surface of the heat exchanger generally presents greater resistance to heat transfer

Method used

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  • Materials and methods
  • Materials and methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1 - Analysis of milk scale using a plate heat exchanger as a substrate, and analysis of cooling water fouling using a UHT heat exchanger as a substrate

[0059] Materials and methods

[0060] Substrate Coating

[0061] The polysaccharide (in this case, 35% dextrin starch was mixed with 65% OSA starch, and the final concentration of the mixture in water was 8.5% (w / w), its pH value was about 3.5) was dissolved in 55 ℃ water and heat it to 85 ℃. Pump the solution into the heat exchanger, circulate for 4 hours and maintain the temperature at 95°C, with a flow rate of 17 L / min in the plate heat exchanger and 35 L / min to 40 L / min in the UHT heat exchanger minute. The polysaccharide solution was drained after 4 hours. Protein solution (80% casein (with calcium) mixed with 20% whey protein to a final concentration of 12% (w / w) in water, pH 6.7) at a temperature below 50°C Dissolve and pump into the heat exchanger at the same flow rate as the polysaccharide solutio...

Embodiment 2

[0115] Example 2 - Using the dairy processing production line as a base material to analyze milk scale

[0116] Materials and methods

[0117] Substrate Coating

[0118] The polysaccharide (in this case, 35% dextrin starch was mixed with 65% OSA starch, and the final concentration of the mixture in water was 9% (w / w), its pH value was about 3.5) was dissolved in 85 ℃ water. The solution was pumped into the heat exchanger, circulated for 5 hours and the temperature was maintained at 95 °C, its flow rate in the Amotec-THE heat exchanger was 10 L / min, and the stirring speed in the pot heat exchanger (potheat exchanger) 80r / min. The polysaccharide solution was drained after 5 hours. Protein solution (80% casein (with calcium) mixed with 20% whey protein to a final concentration of 12% (w / w) in water, pH 6.7) at a temperature below 50°C Dissolve and pump into the heat exchanger at the same flow rate and agitation rate as the polysaccharide solution. The protein solution was c...

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Abstract

The invention relates to a substrate intended in use to contact a fouling agent, the substrate including a coating comprising polysaccharide, which coating serves to reduce or prevent fouling of the substrate caused by contact from the fouling agent, in comparison to an equivalent uncoated substrate. The invention also relates to the anti-fouling coating, to apparatus comprising such coating and to related methods of reducing or preventing fouling of a substrate intended in use to contact a fouling agent.

Description

technical field [0001] The present invention relates to anti-fouling coatings and substrates and devices comprising such coatings. The present invention also relates to methods of coating substrates for reducing or preventing fouling on such coated substrates compared to comparable uncoated substrates. Background technique [0002] Substrates are in many cases brought into contact with fouling agents which deposit on the substrate over time. For example, in marine and aquatic environments, fouling often occurs on substrates such as household equipment, glass or other surfaces. Heat exchangers and other machinery in contact with water, especially hard water, can become fouled or fouled over time, and many components in food and beverage processing equipment and other industrial machines or installations often experience unexpected behaviors. Desired plaque build-up or fouling. Depending on the circumstances, fouling of the substrate can be unaesthetic, can cause hygiene or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D5/00
CPCC09D5/1637C03C17/002C03C17/003C03C17/32C03C2217/70C03C2218/11C03C2218/32C03C2218/365C09D5/16C09D101/02C09D101/04C09D101/06C09D101/10C09D101/12C09D101/14C09D101/16C09D101/18C09D101/28C09D101/284C09D101/286C09D103/02C09D103/04C09D103/06C09D103/08C09D103/10C09D105/14C09D189/00Y10T428/1321Y10T428/1355Y10T428/31634Y10T428/31678Y10T428/31703Y10T428/31971C08L3/02
Inventor 刘哲
Owner UNIVERSITY OF MELBOURNE
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