Halogen-free red phosphorus-free heat shrinkable tube and its preparation method

A heat-shrinkable sleeve, red phosphorus technology, applied in the field of materials, can solve the hidden dangers of safety accidents, slow chemical reactions, red phosphorus pungent snuff, etc., to avoid safety accidents, promote uniform dispersion, and good flame retardant effect. Effect

Active Publication Date: 2015-04-15
东莞三联热缩材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when red phosphorus burns, it produces pungent smoke, especially in a humid environment, it reacts slowly with oxygen to produce highly toxic phosphine (PH3) gas, and red phosphorus dust is

Method used

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  • Halogen-free red phosphorus-free heat shrinkable tube and its preparation method
  • Halogen-free red phosphorus-free heat shrinkable tube and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A halogen-free and red phosphorus-free heat-shrinkable sleeve, the components of which are calculated in parts by weight:

[0043] 45 parts of EVA U5110J (ethylene-acetic acid copolymer) as the base material;

[0044] EVA 2803 (ethylene-acetic acid copolymer) 10 parts;

[0045] 5 parts of ethylene-octene copolymer elastomer;

[0046] 30 parts of halogen-free flame retardant;

[0047] 15 parts of magnesium hydroxide;

[0048] 10 parts of nano calcium carbonate;

[0049] 1 part of maleic anhydride copolymerized modified polymer;

[0050] Antioxidant 1 part;

[0051] Among them, the halogen-free flame retardant is composed of 85% by weight of aluminum diethyl hypophosphite ALDP, 5% by weight of melamine pyrophosphate MPP, and 10% by weight of a triazine char-forming agent.

[0052] The vinyl acetate weight content of the ethylene-acetic acid copolymer is 17%-20%, the melt index is 1-5g / 10min (190°C), and the tensile strength is greater than 10MPa.

Embodiment 2

[0054] A halogen-free and red phosphorus-free heat-shrinkable sleeve, the components of which are calculated in parts by weight:

[0055] 40 parts of EVA U5110J (ethylene-acetic acid copolymer) as the base material;

[0056] EVA 2803 (ethylene-acetic acid copolymer) 15 parts;

[0057] 2 parts of ethylene-octene copolymer elastomer;

[0058] 40 parts of halogen-free flame retardant;

[0059] 30 parts of magnesium hydroxide;

[0060] 5 parts of nano calcium carbonate;

[0061] 3 parts of maleic anhydride copolymerized modified polymer;

[0062] 1 part lubricant;

[0063] 4 parts coloring agent;

[0064] 0.5 part of antioxidant;

[0065]Among them, the halogen-free flame retardant is composed of 95% by weight of aluminum diethyl hypophosphite, 3% by weight of melamine pyrophosphate, and 2% by weight of a triazine char-forming agent.

[0066] The vinyl acetate weight content of the ethylene-acetic acid copolymer is 17%-20%, the melt index is 1-5g / 10min (190°C), and the ten...

Embodiment 3

[0068] A halogen-free and red phosphorus-free heat-shrinkable sleeve, the components of which are calculated in parts by weight:

[0069] 40 parts of EVA 4110 (ethylene-acetic acid copolymer) as the base material;

[0070] EVA U5110J (ethylene-acetic acid copolymer) 5 parts;

[0071] 5 parts of ethylene-octene copolymer elastomer;

[0072] 30 parts of halogen-free flame retardant;

[0073] 1 part aluminum hydroxide;

[0074] 1 part talcum powder;

[0075] 0.1 part of maleic anhydride copolymerized modified polymer;

[0076] 1.5 parts of lubricant;

[0077] 3 parts carbon black;

[0078] Antioxidant 0.1 part;

[0079] Among them, the halogen-free flame retardant is composed of 90% by weight of aluminum diethyl hypophosphite, 5% by weight of melamine pyrophosphate, and 5% by weight of triazine char-forming agent.

[0080] The vinyl acetate weight content of the ethylene-acetic acid copolymer is 17%-20%, the melt index is 1-5g / 10min (190°C), and the tensile strength is gr...

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Abstract

A halogen-free red phosphorus-free heat shrinkable tube and its preparation method. The heat shrinkable tube comprises the following components by weight: 45-75 parts of an ethylene -acetic acid copolymer, 2-10 parts of an ethylene-octene copolymer elastomer, 10-50 parts of a halogen-free flame retardant, 1-30 parts of a flame retardant auxiliary agent, 1-10 parts of a filling material, 0.1-10 parts of a compatibilizer and 0.1-9 parts of other additives. The flame retardant auxiliary agent is magnesium hydroxide / or aluminum hydroxide / or modified magnesium hydroxide / or cyanuric acid salt (MCA), and other additives comprise an antioxidant, a lubricant, a colorant and carbon black. The halogen-free red phosphorus-free heat shrinkable tube uses a halogen-free flame retardant as the flame retardant, a nitrogen flame retardant as the flame retardant auxiliary agent, does not contain halogen flame retardant or red phosphorus, is halogen-free, environment-friendly and meets environmental regulatory requirements; and the halogen-free red phosphorus-free heat shrinkable tube has a wide range of application, and can be used in the connector port in the fields civil or military facilities.

Description

technical field [0001] The invention relates to the field of materials, in particular to a halogen-free and red phosphorus-free heat-shrinkable sleeve and a preparation method thereof. Background technique [0002] In August 2010, a refrigerator of a well-known company issued a recall notice. The reason for this recall is explained as follows: "Because the red phosphorus flame retardant is used in the parts (refrigerant control valve) that control the refrigerant (refrigerant), under high temperature and high humidity environment, the coil of the refrigerant control valve may be disconnected, resulting in ' Abnormal phenomenon of "refrigerator not cold" or "refrigerator too cold". [0003] Ordinary red phosphorus has many defects such as easy oxidation in air, moisture absorption and poor compatibility with polymer materials. The application and research of red phosphorus as a flame retardant has a history of more than 40 years. Since 1965, red phosphorus flame retardant h...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/02C08K5/5313C08K5/3492C08K3/22C08K3/34C08K3/26C08J3/28C08J3/22B29B9/06
CPCB29B9/06B29C35/0866C08J3/246C08J3/28C08J2323/08C08J2423/08C08J2435/00C08K2201/011C08K2201/014C08L23/0853C08L2201/02C08L2201/22C08L2203/18C08L2205/025C08L2205/035C08L23/0815C08L35/00C08K13/02C08K5/5313C08K5/34928C08K5/34922C08K2003/2224C08K2003/265C08K2003/2227C08K3/34C08K3/04C08K13/06
Inventor 陈鹏徐光周陈国强李兴光
Owner 东莞三联热缩材料有限公司
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