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Radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material and preparation method thereof

A technology of radiation crosslinking and heat shrinkage, which is applied in the field of radiation crosslinking heat shrinkage materials and their preparation, can solve the problems of containing red phosphorus, lead, mercury, etc., and achieve simple preparation methods, expanded types and application ranges, and good performance Effect

Inactive Publication Date: 2019-05-21
CHANGYUAN ELECTRONICS DONGGUAN +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that existing conventional halogen-free flame-retardant heat-shrinkable materials contain toxic and harmful substances such as red phosphorus, lead, mercury, cadmium, and hexavalent chromium, and provide a radiation-crosslinked halogen-free Red phosphorus-free flame-retardant heat-shrinkable material and preparation method thereof

Method used

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  • Radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material and preparation method thereof
  • Radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material and preparation method thereof
  • Radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material and preparation method thereof

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preparation example Construction

[0048] The preparation method of the radiation-crosslinked halogen-free and red phosphorus-free flame-retardant heat-shrinkable material includes the following steps:

[0049] Step 1: Weighing according to parts by weight: 100 parts of polyolefin substrate, 20-40 parts of alkyl phosphinate, 40-80 parts of melamine cyanurate, 20-80 parts of aluminum hydroxide, compatibilizer 2 -6 parts, 1-2 parts of antioxidant, 0.5-1 part of processing lubricant, 1-5 parts of masterbatch, fully stirred at room temperature, and mixed evenly;

[0050] Step 2: Mix the homogeneously mixed material in step 1 with an internal mixer at a temperature range of 130-180° C., extrude and granulate;

[0051] Step 3: Extrude the water-cooled strands in the temperature range of 130-200°C with a twin-screw extruder after homogenizing the homogeneously mixed material in step 2, pelletize and air-dry;

[0052] Step 4: extruding the above-mentioned pellets into a tubular shape with a single-screw extruder at a ...

preparation Embodiment 1

[0057] Weigh according to parts by weight: 100 parts of polyolefin substrate [take 90 parts of ethylene-vinyl acetate copolymer (J5110, Yamba) and 10 parts of ethylene-octene copolymer (POE8150, Dow)];

[0058] 20 parts of alkyl phosphinate [take 20 parts of aluminum diethyl phosphinate (commercially available)];

[0059] 80 parts of melamine cyanurate (commercially available)

[0060] 20 parts of aluminum hydroxide (commercially available);

[0061] 4 parts of compatibilizer (random copolymer of maleic anhydride and ethylene-acrylic acid butene copolymer, 4210, Arkema);

[0062] 1 part of antioxidant (take antioxidant 1010:antioxidant DLTP=1:1.5, commercially available);

[0063] Processing lubricant (get zinc stearate, commercially available) 0.8 part;

[0064] 1 part of masterbatch (commercially available);

[0065] Stir well at room temperature to mix well. The homogeneously mixed material was kneaded with an internal mixer at a temperature range of 100° C., extruded ...

preparation Embodiment 2

[0070] Weigh according to parts by weight: 100 parts of polyolefin substrate [take 95 parts of ethylene-vinyl acetate copolymer (J4110, Yamba) and 5 parts of ethylene-octene copolymer (POE8150, Dow)];

[0071] 40 parts of aluminum alkyl phosphinate [take 40 parts of aluminum methyl ethylene phosphinate (commercially available)];

[0072] 55 parts of melamine cyanurate (commercially available);

[0073] 60 parts of aluminum hydroxide (commercially available);

[0074] 6 parts of compatibilizer (graft copolymer of maleic anhydride and ethylene-vinyl acetate copolymer, MC328, Nengzhiguang);

[0075] 2 parts of antioxidant (take antioxidant 1076:antioxidant DLTP=1:1.5, commercially available);

[0076] Processing lubricant (get stearic acid, commercially available) 1 part;

[0077] Color masterbatch (commercially available) 5 parts;

[0078] Stir well at room temperature to mix well. The homogeneously mixed material was kneaded with an internal mixer at a temperature range of...

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Abstract

The invention discloses a radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material. The radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material is prepared from the following components in parts by weight: 100 parts of a polyolefin substrate, 20 to 40 parts of alkyl phosphinate, 40 to 80 parts of melamine cyanurate, 20 to80 parts of aluminium hydroxide, 2 to 6 parts of a compatibilizer, 1 to 2 parts of an antioxidant, 0.5 to 1 part of a processing lubricant and 1 to 5 parts of a color masterbatch. The radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material disclosed by the invention does not contain toxic or harmful substances such as halogen, red phosphorus, lead, mercury,cadmium and hexavalent chromium; crosslinking can be realized by adopting gamma rays or high-energy electronic irradiation; the radiation crosslinking halogen-free non-red phosphorus flame retardant heat shrinking material is used for producing radiation cross-linking halogen-free non-red phosphorus flame retardant heat shrinking materials and products thereof.

Description

technical field [0001] The invention relates to a radiation crosslinking heat shrinkable material and a preparation method thereof. Background technique [0002] Conventional halogen-free flame-retardant heat-shrinkable materials currently mainly use red phosphorus as a flame retardant, which has a good flame-retardant effect and can meet the flame-retardant requirements of UL standard V0 or VW-1. However, when red phosphorus burns, it will release toxic and irritating phosphine, which will erode human skin and mucous membranes and endanger human health; in addition, red phosphorus will induce migration reactions of metal copper and silver in electronic chips, resulting in integrated failure of the line. For this reason, Apple took the lead in the world in 2007 to propose restrictions on the use of red phosphorus flame retardants in products, and its suppliers are also actively restricting the use of red phosphorus. [0003] Therefore, it is very necessary to develop halog...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/02C08K5/5313C08K3/22C08K5/3492
Inventor 刘军杜杰辉吴松金鲁尔军
Owner CHANGYUAN ELECTRONICS DONGGUAN
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