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Safety vest with polypropylene foaming inner core, and preparation method of inner core of safety vest

A polypropylene, inner core technology, applied in the field of safety vests, can solve the problems of not being able to be used as a life jacket, small application range, and inconvenient for wearing personnel to move.

Inactive Publication Date: 2020-04-28
WUXI XINGTAI SHIPPING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But although this vest can resist the impact of strong external force, it is very inconvenient when it overcomes the impact resistance; needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1. The safety vest of this embodiment includes a vest jacket and an inner core. The surface of the inner core is designed as a concave-convex mahjong block suitable for human body activity rules. The inner core is sandwiched in the interlayer of the coat, and the inner core placed in the front chest coat 1 is at least one-third thicker than the inner core placed in the back coat, and its density is 0.07g / cm polypropylene The foam material formed by foaming, the basic formula of the foam material inner core is: polypropylene is 10%, azodicarbonamide foaming agent is 2.3%, foaming aid is 0.6%, and crosslinking agent is 0.5%, stearic acid lubricant 0.6%, calcium carbonate filler balance, above-mentioned percentage is mass percent.

[0015] The manufacturing method of the above-mentioned inner core material comprises the following steps:

[0016] (1) Weigh each material in the formula and put them into the mixer and stir at 50°C for 3 minutes, then move to the m...

Embodiment 2

[0019] Embodiment 2. The safety vest of this embodiment includes a vest jacket and an inner core, and the surface of the inner core is designed as a concave-convex mahjong block suitable for human body activity rules. The inner core is sandwiched in the interlayer of the coat, and the inner core placed in the front chest coat 1 is at least one-third thicker than the inner core placed in the back coat, and its density is 0.07g / cm polypropylene The foam material formed by foaming, the formula of the foam material inner core is basically composed of: polypropylene is 50%, azodicarbonamide foaming agent is 4.3%, foaming aid is 1%, crosslinking agent is 0.7%, stearic acid lubricant 1%, calcium carbonate filler balance, above-mentioned percentage is mass percent.

[0020] The manufacturing method of the above-mentioned inner core material comprises the following steps:

[0021] (1) Weigh each material in the formula and put them into the mixer and stir at 60°C for 4 minutes, then m...

Embodiment 3

[0024] Embodiment 3. The safety vest of this embodiment includes a vest jacket and an inner core. The surface of the inner core is designed as a concave-convex mahjong block suitable for human body activity rules. The inner core is sandwiched in the interlayer of the coat, and the inner core placed in the front chest coat 1 is at least one-third thicker than the inner core placed in the back coat, and its density is 0.07g / cm polypropylene The foam material formed by foaming, the formula of the inner core of the foam material is basically composed of: 40% polypropylene, 3.2% azodicarbonamide foaming agent, 0.8% foaming aid, and 0.8% crosslinking agent 0.6%, stearic acid lubricant 0.8%, calcium carbonate filler balance, above-mentioned percentage is mass percent.

[0025] The manufacturing method of the above-mentioned inner core material comprises the following steps:

[0026] (1) Weigh each material in the formula and put them into the mixer and stir at 57°C for 3.5 minutes, ...

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Abstract

The invention discloses a safety vest with a polypropylene foaming inner core. The vest comprises a vest outer sleeve and an inner core, wherein the inner core is clamped in the interlayer of the outer sleeve, the inner core is made of a foam material formed by foaming polypropylene with a density of 0.07 g / cm, the foaming material inner core is basically composed of 10-50% of polypropylene, 2.3-4.3% of an azodicarbonamide foaming agent, 0.6-1% of a foaming aid, 0.5-0.7% of a cross-linking agent, 0.6-1% of a stearic acid lubricant and the balance of a calcium carbonate filler. The safety vesthas the advantages that the polypropylene foam with the density of 0.07 g / cm<3> is adopted, so that the safety vest can be used as a life jacket and can resist high-strength external force impact; andthe inner core has a good floating effect, so that the manufactured safety vest can be used as a life jacket in emergency, and can be used for various overwater operation requirements with high requirements for fitness performance.

Description

technical field [0001] The invention relates to a safety vest, which can be used in various water operations requiring high fitness performance, such as deck operations, fisheries, offshore drilling platform operations and other fields. Background technique [0002] Existing a kind of patent No. is CN95221847.X name is called " safety vest " Chinese utility model patent discloses a kind of structure, and its structure comprises vest front, back, and this vest is made of outer lining cloth layer, inner lining cloth layer and be placed in outer lining cloth layer. The hard cushion layer and the soft cushion layer between the layer and the lining cloth layer are superimposed. The left armpit of the vest is open and not closed. It is connected by male and female nylon sticks or belts. In addition, the hard cushion layer and The interlayer formed by the soft cushion layer is distributed on the front and back of the vest at intervals. This four-layer structure is glued together wi...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K3/26C08K5/09C08J9/10
CPCC08J9/0023C08J9/0066C08J9/0095C08J9/103C08J2203/04C08J2323/12
Inventor 包国平黄锡安
Owner WUXI XINGTAI SHIPPING EQUIP
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