Life jacket with quick-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 rate of the life jacket, and achieve the effects 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. The basic composition of the inner core is: 0.8 parts by mass of sucrose NN4110, 0.4 parts by mass Parts by mass of ethylenediamine polyether NT403A, 0.04 parts by mass of B8462, 0.025 parts by mass of organotin catalyst DY-12, 0.03 parts by mass of triethanolamine AR, 0.25 parts by mass of TECP, 0.04 parts by mass of cyclopentane, and 2 parts by mass of PM200PAPI.

[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 pr...

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 basic composition of the inner core is: 3 parts by mass of NN4110 sucrose polyether, 1.2 Parts by mass of NT403A ethylenediamine polyether, 0.15 parts by mass of BF2470, 0.1 parts by mass of DY-12 organotin catalyst, 0.08 parts by mass of AR triethanolamine, 1.1 parts by mass of BPS, 0.12 parts by mass of cyclopentane and 7.5 parts by mass of PM200PAPI.

[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 product r...

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. The basic composition of the inner core is: 1 mass part of sucrose NN4110, 0.5 Parts by mass of ethylenediamine polyether NT403A, 0.05 parts by mass of B8462, 0.03 parts by mass of organotin catalyst DY-12, 0.03 parts by mass of triethanolamine AR, 0.4 parts by mass of BPS, 0.05 parts by mass of cyclopentane and 2.5 parts by mass of PAPI PM200 .

[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 according to the product requirement...

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Abstract

The invention discloses a life jacket with a quick-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 playinga role of a floater, the inner core is arranged in the interlayer of the outer sleeve; the formula of the inner core basically comprises the following components of: 0.8-3 parts by mass of sucrose polyether NN4110, 0.4-1.2 parts by mass of ethylenediamine polyether NT403A, 0.04-0.04 parts by mass of a foam stabilizer, 0.025-0.1 parts by mass of an organic tin catalyst DI-12, 0.03-0.08 parts by mass of triethanolamine AR, 0.25-1.1 parts by mass of a flame retardant, 0.04-0.12 parts by mass of cyclopentane and 2-7.5 parts by mass of PAPI PM200. The life jacket has the advantages that after theinner 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): B63C9/087C08G18/66C08G18/48C08G18/32C08J9/14
CPCB63C9/087C08G18/3281C08G18/48C08G18/6688C08J9/141C08J2375/08
Inventor 包国平黄锡安
Owner WUXI XINGTAI SHIPPING EQUIP
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