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Life jacket with waterproof heat preservation foaming 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 high surface water absorption, low tensile strength, and high linear shrinkage of life jackets, and achieve the effect of light weight, good fit, and soft hand feeling

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

[0003] The technical problem to be solved by the present invention is to provide a life jacket and its preparation method to solve the technical problems of existing life jackets such as high surface water absorption, low tensile strength, high linear shrinkage and low elongation.

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, and the inner core is made of the following ingredients in proportion by weight: polyethylene Rice material 300, zinc oxide 5, AC foaming agent 10, tribasic lead sulfate 1, polyether triol 2, carbon black 20, stearic acid 10, calcium powder 300.

[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 to the product requirements, put it into a mold at a temperature of 165 degrees to foam for 35 minutes, and then cool it for 29 min...

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, and the inner core is made of the following ingredients in proportion by weight: polyethylene Rice material 500, zinc oxide 10, fluorochloroform 50, tribasic lead sulfate 5, DCP 5, carbon black 30, stearic acid 20, calcium powder 400.

[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 and mix them for 25 minutes. Cut the raw material according to the product requirements, put it into a mold at a temperature of 170 degrees to foam for 38 minutes, and then cool it for 30 m...

Embodiment 3

[0018] Embodiment three, the lifejacket of the present 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 the following ingredients in proportion by weight: polyethylene Rice material 370, zinc oxide 8, chlorofluoromethane 36, tribasic lead sulfate 3, polyether triol 4, carbon black 26, stearic acid 18, calcium powder 360.

[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 into an open mixer with a temperature of 100 degrees for 26 minutes. Cut the raw material according to the product requirements, put it into a mold at a temperature of 175 degrees to foam for 40 minutes, and then c...

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Abstract

The invention discloses a life jacket with a waterproof heat preservation foaming 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 an interlayer of the outer sleeve and is prepared from the following components in parts by weight: 300-500 parts ofpolyethylene rice, 5-10 parts of zinc oxide, 10-50 parts of a foaming agent, 1-5 parts of tribasic lead sulfate, 2-5 parts of a cross-linking agent, 20-30 parts of carbon black, 10-20 parts of stearicacid and 300-400 parts of calcium powder. The life jacket has the advantages that after the inner core is immersed in water for 24 hours, the buoyancy loss does not exceed 5%, and a good buoyancy state can be stably kept in water.

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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Patent Type & Authority Applications(China)
IPC IPC(8): B63C9/093C08J9/10C08J9/14C08L23/06C08K13/02C08K3/22C08K3/26C08K5/09B29B7/00B29C44/60
CPCB29B7/002B29C44/60B63C9/093C08J9/0023C08J9/0066C08J9/0095C08J9/103C08J9/144C08J2203/04C08J2203/142C08J2323/06
Inventor 包国平黄锡安
Owner WUXI XINGTAI SHIPPING EQUIP
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