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A kind of defoamer for vacuum-free packaging

A technology of vacuum packaging and defoaming agent, applied in the field of defoaming agent, can solve the problems of waste of resources, reduced defoaming effect, failure of defoaming agent, etc., and achieve the effect of saving cost and reducing waste of resources

Active Publication Date: 2021-04-06
东莞市恒彩塑胶颜料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current defoamer must be vacuum-packed after production to prevent moisture in the package of the defoamer, and once the vacuum package is opened, it must be used up as soon as possible, and it cannot be stored for a long time, otherwise the defoamer will be damaged. fail
Therefore, the packaging volume of the general defoamer will be relatively small, and the packaging cost will be high. The used packaging can only be discarded, which will increase the pollution to the environment. In addition, in most cases, it is difficult to ensure the performance of the defoamer after it is opened. If all are just used up, there will always be a surplus, and after the surplus has been placed for a long time, the defoaming effect will be greatly reduced, or even completely invalid, so it can only be discarded, which is a great waste of resources

Method used

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  • A kind of defoamer for vacuum-free packaging
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  • A kind of defoamer for vacuum-free packaging

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Experimental program
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preparation example Construction

[0038] Defoaming powder is prepared by the following method:

[0039] Ingredients: Aluminum Oxide 0.05%, Magnesium Oxide 0.1%, Calcium Oxide the rest.

[0040] A. First add alumina to calcium oxide and stir evenly, then add magnesium oxide and continue stirring evenly.

[0041] B. Dissolve glycerin and glucose into water at a temperature of 65° C. to make a mixed glucose saturated solution, and the mixing mass ratio of glycerol to water is 1.5:1.

[0042] C. Mix the saturated glucose solution obtained in step B with the surface of the mixture obtained in step A through an atomizing device. During the mixing process, the solid mixture has been in a state of tumbling and stirring for 5 minutes; the atomized particles are 8-10 μm .

[0043] D. Put the solid mixture mixed in step C into a dust bag, blow into the dust bag with dry air at a temperature of 70°C to dry and remove moisture, and the air volume is 20-21m 3 / min, the obtained dry powder is the defoaming powder.

[004...

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Abstract

The invention relates to the technical field of defoamers, in particular to a defoamer for vacuum-free packaging, which consists of the following substances in weight percent: lubricant 2.5-3.5%; dispersant 1.5-2.5%; defoaming powder 57-61% Carrier 34-38%; The defoaming powder contains the following mass percentages: 0.05-0.1% aluminum oxide; 0.05-0.1% magnesium oxide, and the balance is calcium oxide. Normal storage will not affect the defoaming effect.

Description

technical field [0001] The invention relates to the technical field of defoamers, in particular to a defoamer for vacuum-free packaging. Background technique [0002] Plastic defoamer, also known as plastic hygroscopic agent, plastic vulcanized defoamer, can be used as a compounding agent in plastics and some rubber and plastic products, absorbing fillers, vulcanizing agents, accelerators, foaming agents used in the production process of their products The water brought in by the agent, etc., makes the product have no pores inside, the cross-section is uniform, dense, and the surface is smooth and beautiful. This product is especially suitable for normal-pressure vulcanized plastic production lines, and is one of the essential additives. [0003] The main component of the plastic defoamer is calcium oxide, and other components such as carriers, lubricants, and dispersants are added to change the rheology of the plastic and improve the defoaming effect. Calcium oxide has st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K13/06C08K9/04C08K3/22
CPCC08K3/22C08K9/04C08K13/06C08K2003/2206C08K2003/222C08K2003/2227
Inventor 梁新龙
Owner 东莞市恒彩塑胶颜料有限公司