Preparation method of foamed floating ball

A floating ball and foaming agent technology, applied in the field of foamed plastics, can solve problems affecting the accuracy of liquid level detection, uneven foaming of floating balls, rough outer surface, etc., achieve long service life, improve thermal stability, The effect of improving dispersion

Inactive Publication Date: 2020-05-12
宁波铭瑞中兴电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these foamed floats also have the characteristics of general foamed floats, the internal closed cells are generally rough and the outer surface is relatively rough, which leads to uneven foaming of the entire float. When the ball is used to detect the liquid level, the foam float tends to have a large inclination when it floats up and down, which will affect the accuracy of the liquid level detection

Method used

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  • Preparation method of foamed floating ball
  • Preparation method of foamed floating ball

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method for foamed buoyant balls, comprising the steps of,

[0037] Step 1, take 75KgPP, 3Kg calcium carbonate, 2Kg sodium dodecylbenzenesulfonate, 11Kg other additives and prepare raw materials;

[0038] Step 2, adding the raw materials of step 1 to a plastic injection molding machine for heating and melting to obtain a molten body;

[0039] Step 3, injecting the molten body of step 2 into a mold for molding;

[0040] Step 4. Use the tractor to pull the formed floating ball out of the mold.

[0041] Wherein, the plastic injection molding machine in step 2 is heated by microwaves with a frequency of 5400 MHz generated by a microwave generator. And other additives are the anti-oxidant of the white oil of 4Kg, the lithium iodide of 4Kg and 3Kg. Here, the antioxidant is a mixture of N-phenyl-α-naphthylamine and benzofuranone, and the mass ratio of N-phenyl-α-naphthylamine and benzofuranone is 1:1. In addition, calcium carbonate was soaked in acrylic acid f...

Embodiment 2

[0043] A preparation method for foamed buoyant balls, comprising the steps of,

[0044] Step 1, take by weighing 80KgPP, 6Kg magnesium carbonate, 3Kg potassium lauryl phosphate and 13Kg other auxiliary agents to prepare raw materials;

[0045] Step 2, adding the raw materials of step 1 to a plastic injection molding machine for heating and melting to obtain a molten body;

[0046] Step 3, injecting the molten body of step 2 into a mold for molding;

[0047] Step 4. Use the tractor to pull the formed floating ball out of the mold.

[0048] Wherein, the plastic injection molding machine in step 2 is heated by microwaves with a frequency of 6800 MHz generated by a microwave generator. And other additives are 5Kg white oil, 4.5Kg cuprous iodide and 3.5Kg antioxidant. Here, the antioxidant is a mixture of N-phenyl-α-naphthylamine and benzofuranone, and the mass ratio of N-phenyl-α-naphthylamine and benzofuranone is 1:1. In addition, magnesium carbonate was soaked in maleic acid...

Embodiment 3

[0050] A preparation method for foamed buoyant balls, comprising the steps of,

[0051] Step 1, take by weighing 85KgPP, 9Kg sodium bicarbonate, 4Kg sodium dodecylbenzenesulfonate and 15Kg other auxiliary agents to prepare raw materials;

[0052] Step 2, adding the raw materials of step 1 to a plastic injection molding machine for heating and melting to obtain a molten body;

[0053] Step 3, injecting the molten body of step 2 into a mold for molding;

[0054] Step 4. Use the tractor to pull the formed floating ball out of the mold.

[0055]Wherein, the plastic injection molding machine in step 2 is heated by microwaves with a frequency of 8200 MHz generated by a microwave generator. And other additives are the anti-oxidant of the white oil of 6Kg, the lithium iodide of 5Kg and 4Kg. Here, the antioxidant is a mixture of N-phenyl-α-naphthylamine and benzofuranone, and the mass ratio of N-phenyl-α-naphthylamine and benzofuranone is 1:1. In addition, sodium bicarbonate was so...

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PUM

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Abstract

The invention discloses a preparation method of a foamed floating ball, belonging to the field of foamed plastics. The preparation method mainly comprises the following steps: step 1, weighing 75-85 parts of PP, 3-9 parts of a foaming agent, 2-4 parts of a surfactant and 11-15 parts of other assistants for raw material preparation; step 2, adding the raw materials in the step 1 into a plastic injection molding machine for heating and melting to obtain molten mass; step 3, injecting the molten mass obtained in the step 2 into a mold for molding; and step 4, pulling out the formed floating ballfrom the mold through a traction machine. By adopting such a technical scheme, the foaming agent can be uniformly distributed in the PP raw material by adding the surfactant into the PP raw material,so the PP raw material can be relatively uniform in the foaming process.

Description

technical field [0001] The invention relates to the field of foamed plastics, in particular to a method for preparing foamed floating balls. Background technique [0002] Foam floating ball has the advantages of light weight, heat insulation, cushioning, insulation, anti-corrosion, and low price, so it is widely used in daily necessities, packaging, industry, agriculture, transportation, military industry, and aerospace industry. Since then, the development of foam floats has been very rapid. At present, the foamed floating ball has a series of characteristics such as low density, high specific strength, strong energy absorption capacity, and good sound and heat insulation performance. [0003] However, many of the existing foamed floating balls are made of PP as the main material, and a certain proportion of foaming agent is added, mixed and heated. Although these foamed floats also have the characteristics of general foamed floats, the internal closed cells are generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/08C08L23/12C08L91/06C08L77/00C08K13/02C08K5/18C08K3/16C08K5/1535C08K5/42C08K5/521B29C44/34
CPCC08J9/08C08J9/0061C08J9/0095C08J9/0066C08J9/0023C08J9/0033C08J9/0038B29C44/3415C08J2323/12C08J2491/06C08J2377/00C08J2203/02
Inventor 谢斌军孙伟达卢昌伟
Owner 宁波铭瑞中兴电子科技有限公司
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