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Life jacket with flame-retardant inner core, and preparation method of inner core of life jacket

A life jacket and inner core technology, applied in the field of life jackets, can solve the problems of buoyancy drop, difficulty in breathing, and consumption of the rescuer's physical strength, and achieve the effect of soft hand feeling, good fit and light weight

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 its disadvantage is that the buoyancy of the two-piece design of the chest and back is similar. When a person falls into the water, he will not automatically turn his body and keep his face up, which will cause breathing difficulties for rescuers who are not suitable for water; in addition, the above-mentioned flame-retardant For high-density polyethylene foam materials, if the foam sinks in the water for too long, its buoyancy will decrease, which will further consume the rescuer's physical strength, so its structure and material properties need to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1. The lifejacket of this embodiment includes an outer jacket and an inner core that acts as a float. The inner core is placed in the interlayer of the outer jacket. The inner core is made of nitrile rubber and flame retardant as the main raw material through foaming. The foam material, the formula of the inner core is composed of the following components by mass: polyethylene 70, N-aminoethylethanolamine 0.8, fluorotrichloromethane 22, zinc oxide 1.5, tribasic lead sulfate 0.12~ , release agent stearic acid 0.15, calcium carbonate 30.

[0011] The manufacturing method of the above-mentioned inner core material comprises the following steps:

[0012] a. Configure raw materials according to the formula;

[0013] b. Then mix the configured raw materials in the refiner with a temperature of 110 degrees for 20 minutes, then take out the mixed materials and put them in an open mixer with a temperature of 90 degrees for 24 minutes. Cut the raw material according ...

Embodiment 2

[0014] Embodiment 2. The lifejacket of this embodiment includes an outer jacket and an inner core that acts as a float. The inner core is placed in the interlayer of the outer jacket. The inner core is made of nitrile rubber and flame retardant as the main raw material through foaming. The foam material, the formula of the inner core is composed of the following components by mass: polyethylene 110, polyether triol 1.2, AC foaming agent 30, zinc oxide 3.5, tribasic lead sulfate 0.18, mold release agent Stearic acid 0.19, calcium carbonate 46.

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

[0016] a. Configure raw materials according to the formula;

[0017] b. Then mix the configured raw materials in the refiner with a temperature of 115 degrees for 25 minutes, then take out the mixed materials and put them in an open mixer with a temperature of 95 degrees for 25 minutes. Cut the raw materials according to the pro...

Embodiment 3

[0018] Embodiment 3, the lifejacket of this embodiment includes an outer jacket and an inner core that acts as a float, the inner core is placed in the interlayer of the outer jacket, and the inner core is made of nitrile rubber and flame retardant as main raw materials through foaming. The foam material is formed, the formula of the inner core is composed of the following components by mass: polyethylene 90, polyether triol 1.0, fluorotrichloromethane 28, zinc oxide 2.5, tribasic lead sulfate 0.16, mold release Agent stearic acid 0.18, calcium carbonate 38.

[0019] The manufacturing method of the above-mentioned inner core material comprises the following steps:

[0020] a. Configure raw materials according to the formula;

[0021] b. Then mix the configured raw materials in the refiner with a temperature of 120 degrees for 30 minutes, then take out the mixed materials and put them in an open mixer with a temperature of 100 degrees for 26 minutes. Cut the raw materials acc...

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PUM

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Abstract

The invention discloses a life jacket with a flame-retardant inner core, and a preparation method of the inner core of the life jacket. The life jacket comprises an outer sleeve and an inner core playing a role of a floater, wherein the inner core is arranged in the interlayer of the outer sleeve, and the formula of the inner core basically comprises the following components: 70-110 parts of polyethylene, 0.8-1.2 parts of a cross-linking agent, 22-30 parts of a foaming agent, 1.5-3.5 parts of zinc oxide, 0.12-0.18 part of tribasic lead sulfate, 0.15-0.19 part of a demolding agent stearic acidand 30-46 parts of calcium carbonate. According to the invention, after the inner core is immersed in water for 24 hours, the buoyancy loss does not exceed 5 percent, so that a good buoyancy state canbe stably kept in water; the inner core material is soft in hand feeling, good in fitness when worn on a human body, and convenient for the human body to bend down, squat or do various activities; and the life jacket has characteristics of light weight and convenient carrying.

Description

technical field [0001] The invention relates to a lifejacket, which can be used in various water operations that require high fitness performance, such as deck operations, fisheries, offshore drilling platform operations and other fields. Background technique [0002] As a common tool in the field of water operations, life jackets are generally disclosed in the Chinese utility model patent: Super Buoyancy Life Jacket (Patent No. CN93214217.6). Its structure uses a novel waterproof and flame-retardant fabric to form a "life jacket". The inner and outer layers, the interlayer between the inner and outer layers has a specially treated non-absorbent, flame-retardant high-density polyethylene foam material interlayer, which is sewn into two pieces of chest and back in a specific form. The nylon high-strength webbing of the sub-shaped buckle is stitched together as a whole. The utility model has the advantages of being safe and reliable, super buoyant and warm, simple in structur...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K3/26C08J9/14C08J9/10B63C9/08
CPCB63C9/08C08J9/0066C08J9/0095C08J9/103C08J9/147C08J2203/04C08J2203/142C08J2323/06
Inventor 包国平黄锡安
Owner WUXI XINGTAI SHIPPING EQUIP