Novel foaming PVC nose plug and making method thereof

A technology for PVC resin powder and nasal plug, which is applied in the field of new foamed PVC nasal plug, can solve the problems of skin redness, swelling or peeling, user injury, user discomfort, etc., and achieves the effect of reducing friction coefficient, low processing cost and easy molding

Inactive Publication Date: 2017-08-04
佛山市方普防护技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing oxygen inhalation nasal plugs are injection molded, and there will be a mold line on the surface of the product. This mold line touches the user's skin and will cause discomfort to the user
Moreover, most of the currently used plastics have high friction between the skin and the user's skin when they are active, which may easily cause redness or peeling of the skin and increase the damage to the user.

Method used

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  • Novel foaming PVC nose plug and making method thereof
  • Novel foaming PVC nose plug and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The present embodiment makes foaming PVC nasal plug according to the following steps:

[0020] 1. Weigh 70 parts of PVC paste resin powder, 40 parts of dioctyl terephthalate, 10 parts of epoxy soybean oil, 2 parts of polycarboxylate sodium salt, 3 parts of calcium zinc stabilizer, microsphere foaming agent according to the formula 2 parts; mix the above raw materials evenly according to the formula to make PVC dipping solution.

[0021] 2. Heat the nasal plug mold to 150°C, then immerse the mold in PVC dipping solution, and take it out after 55s.

[0022] 3. Put the mold with PVC dipping liquid into the furnace at 400℃, and mold for 28s.

[0023] 4. Take out the plasticized and molded product, cool it in water to 50°C, and demold it to obtain a foamed PVC nasal plug.

[0024] After testing, the obtained product has a static friction coefficient of 0.23, a tensile strength of 7.7MPa, an elongation of 185% and a tear strength of 17.3MPa.

Embodiment 2

[0026] The present embodiment makes foaming PVC nasal plug according to the following steps:

[0027] 1. According to the formula, weigh 90 parts of PVC paste resin powder, 60 parts of trioctyl trimellitate, 15 parts of epoxy soybean oil, 3 parts of polycarboxylate sodium salt, 2 parts of calcium zinc stabilizer, lauryl sulfuric acid 4 parts of sodium; mix the above-mentioned raw materials according to the formula to make PVC dipping liquid.

[0028] 2. Heat the nasal plug mold to 170°C, then immerse the mold in the PVC dipping solution, and take it out after 35 seconds.

[0029] 3. Put the mold with PVC dipping liquid into the furnace at 420℃, and mold for 22s.

[0030] 4. Take out the plasticized and molded product, cool it in water to 50°C, and demold it to obtain a foamed PVC nasal plug.

[0031] After testing, the obtained product has a static friction coefficient of 0.25 for the skin on the back of the hand, a tensile strength of 4.7 MPa, an elongation of 135%, and a t...

Embodiment 3

[0033] The present embodiment makes foaming PVC nasal plug according to the following steps:

[0034] 1. Weigh 80 parts of PVC paste resin powder, 30 parts of dioctyl terephthalate, 35 parts of trioctyl trimellitate, 3 parts of hydroxy functional carboxylate, 4 parts of calcium stearate, microspheres according to the formula 2 parts of foaming powder; mix the above raw materials evenly according to the formula to make PVC dipping solution.

[0035] 2. Heat the nasal plug mold to 190°C, then immerse the mold in the PVC dipping solution, and take it out after 19s.

[0036] 3. Put the mold with PVC dipping liquid into the furnace at 440℃, and mold for 15s.

[0037] 4. Take out the plasticized and molded product, cool it in water to 50°C, and demold it to obtain a foamed PVC nasal plug.

[0038] After testing, the obtained product has a static friction coefficient of 0.21 for the skin on the back of the hand, a tensile strength of 5.4 MPa, an elongation of 147%, and a tear stren...

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Abstract

The invention discloses a novel foaming PVC nose plug and a making method thereof. The nose plug is formed by carrying out plastic dipping on a nose plug mould in a PVC plastic dipping solution, and then performing plasticization and demoulding; the PVC plastic dipping solution is prepared by mixing PVC resin powder, a plasticizer, a dispersant, a stabilizer and a foaming agent. The foaming PVC nose plug disclosed by the invention reduces the friction coefficient between the nose plug and skin and lowers the friction force when an oxygen inhalation nose plug is in contact with the skin to solve the problems of discomfort and skin injuries to a user when the oxygen inhalation nose plug rubs the skin during the process of oxygen inhalation.

Description

technical field [0001] The invention discloses a novel foamed PVC nasal plug and a manufacturing method thereof. Background technique [0002] Most of the existing oxygen inhalation nasal plugs are injection molded, and there is a mold line on the surface of the product. This mold line contacts the user's skin, which will cause discomfort to the user. And the frictional force between most of the plastics used at present and the skin is big, rubs the user's skin when the user is active, easily causes skin redness or peeling, increases the injury to the user. Contents of the invention [0003] The object of the present invention is to provide a novel foamed PVC nasal plug and its manufacturing method, which aims to reduce the friction coefficient between the nasal plug and the skin, and reduce the risk of injury to the user. [0004] The present invention adopts the following technical solutions for realizing the purpose of the invention: [0005] The novel foamed PVC nasa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08L33/02C08K5/12C08J9/04
CPCC08L27/06C08J9/0061C08J9/04C08J2327/06C08J2491/00C08K5/12C08K2201/014C08L2203/14C08L2205/03C08L91/00C08L33/02
Inventor 薛攀方松喜丁运生蒙勇煊吴亚玲宁达成
Owner 佛山市方普防护技术有限公司
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