High-strength life buoy and preparation method thereof

A lifebuoy, high-strength technology, applied in water lifesaving, ship safety, ships, etc., can solve the problems of threatening the life safety of users, poor compression resistance of the lifebuoy, slippery plastic surface when encountering water, etc., to achieve high yield, The product has a small shrinkage rate and is not easy to tear

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

Existing life buoys have poor pressure resistance, are easy to break and leak air, and are easy to slip when encountering water. In case of an emergency at night, the traditional life buoy is inconvenient to find; the plastic surface is wet and slippery, and it is difficult to grasp. Dangerous, seriously threatening the life safety of users

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, a high-strength life buoy, made of the following raw materials in parts by weight: polypropylene 60, N-aminoethylethanolamine 0.8, fluorotrichloromethane 22, zinc oxide 1.5, tribasic lead sulfate 0.12, Release agent stearic acid 0.12, calcium carbonate 30.

[0014] The manufacture method of above-mentioned buoy ring, comprises the following steps:

[0015] (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 mixer and mix at 110°C for 6 minutes;

[0016] (2) Put the mixed material into a double-roll mill at room temperature and roll it into a sheet, or extrude it into a sheet by an extruder. Before that, premature crosslinking and foaming should be avoided;

[0017] (3) Cut a certain amount of blanks as needed and put them into the mold, and hot press in a flat vulcanizing machine at a temperature of 170°C, a pressure of 8 MPa, and hot pressing for 8 minutes, mold opening, edge trimming, and f...

Embodiment 2

[0018] Embodiment 2, a high-strength life buoy, made of the following raw materials in parts by weight: polypropylene 110, polyether triol 1.2, AC foaming agent 30, zinc oxide 3.5, tribasic lead sulfate 0.18, mold release agent Stearic acid 0.18, calcium carbonate 46.

[0019] The manufacture method of above-mentioned buoy ring, comprises the following steps:

[0020] (1) Weigh each material in the formula and put them into the mixer and stir at 60°C for 4 minutes, then move to the mixer and mix at 120°C for 6 minutes;

[0021] (2) Put the mixed material into a double-roll mill at room temperature and roll it into a sheet, or extrude it into a sheet by an extruder. Before that, premature crosslinking and foaming should be avoided;

[0022] (3) Cut a certain amount of blanks as needed and put them into the mold, and hot press in a flat vulcanizing machine at a temperature of 180°C, a pressure of 10MPa, and hot pressing for 10 minutes, mold opening, edge trimming, and frosting ...

Embodiment 3

[0023] Embodiment 3, a high-strength life buoy, made of the following raw materials in parts by weight: polypropylene 85, polyether triol 0.9, fluorotrichloromethane 28, zinc oxide 2.7, tribasic lead sulfate 0.16, mold release Agent stearic acid 0.15, calcium carbonate 42.

[0024] The manufacture method of above-mentioned buoy ring, comprises the following steps:

[0025] (1) Weigh each material in the formula and put them into the mixer and stir at 57°C for 3.5 minutes, then move to the mixer and mix at 114°C for 5 minutes;

[0026] (2) Put the mixed material into a double-roll mill at room temperature and roll it into a sheet, or extrude it into a sheet by an extruder. Before that, premature crosslinking and foaming should be avoided;

[0027] (3) Cut a certain amount of blanks as needed and put them into the mold, and hot press in a flat vulcanizing machine at a temperature of 175°C, a pressure of 9MPa, hot pressing for 9 minutes, mold opening, edge trimming, and frosting...

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PUM

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Abstract

The invention relates to a high-strength life buoy. The life buoy is prepared from the following raw materials in parts by weight: 60-110 parts of polypropylene, 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 acid and 30-46 parts of calcium carbonate. The preparation method comprises the following steps: (1) respectively weighing the materials in the formula, adding the weighed materials into a mixer, stirring at 50-60 DEG C for 3-4 minutes, transferring into a mixing mill, and mixing at 110-120 DEG C for 4-6 minutes; (2) putting the mixed material into a normal-temperature double-roller open mill, and rolling into sheets, or extruding into sheets by anextruder; and (3) cutting a certain amount of the material sheets as required, putting the cut material sheets into a mold, carrying out hot pressing in a press vulcanizer at 170-180 DEG C under a pressure of 8-10 MPa for 8-10 min, opening the mold, cutting edges, and carrying out frosting treatment.

Description

technical field [0001] The invention relates to a high-strength life buoy, 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] Lifebuoy refers to a kind of water lifesaving equipment, usually made of cork, foam plastic or other light materials with small specific gravity, and covered with canvas, plastic and so on. Existing life buoys have poor pressure resistance, are easy to break and leak air, and are easy to slip when encountering water. In case of an emergency at night, the traditional life buoy is inconvenient to find; the plastic surface is wet and slippery, and it is difficult to grasp. Dangerous, seriously threatening the life safety of users. Therefore its structure still needs to be improved. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a lifebu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08K13/02C08K3/22C08K5/09C08K3/26C08J9/14C08J9/10C08J3/24B63C9/13
CPCB63C9/13C08J3/24C08J3/246C08J9/0023C08J9/0061C08J9/0066C08J9/103C08J9/144C08J2203/04C08J2203/142C08J2203/184C08J2323/06C08J2323/12C08J2471/00C08K5/09C08K13/02C08K2003/2296C08K2003/265
Inventor 包国平黄锡安
Owner WUXI XINGTAI SHIPPING EQUIP
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