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Polyethylene composite material subjected to halogen-free flame-retardant modification and core-shell structure toughening

A core-shell structure and composite material technology, applied in the field of polyethylene composite materials, can solve the problems of poor flame resistance, poor impact strength, insufficient toughness, etc., and achieve the effects of excellent comprehensive performance, good processing performance and strong applicability

Inactive Publication Date: 2015-06-03
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyethylene also has disadvantages such as poor impact strength, insufficient toughness and poor flame resistance, so flame retardant modification and toughening are usually required to broaden its scope of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A polyethylene composite material with halogen-free flame-retardant modification and core-shell structure toughening, its components are: polyethylene 60%, nano-calcium carbonate 10%, diisocyanate 1.5%, ethylene glycol 3%, compound type halogen-free flame retardant 18%, maleic anhydride grafted ethylene-octene copolymer (POE-g-MAH) 6%, polyethylene wax 1%, hindered phenol antioxidant 1010 and phosphorous acid The compound of ester antioxidant 168 is 0.5%. The compound halogen-free flame retardant is a compound of 50wt% amine polyphosphate (APP), 25wt% melamine polyphosphate (MPP) and 25wt% nano-montmorillonite.

[0019] Preparation method: (1) Weigh 50wt% of ammonium polyphosphate (APP), 25wt% of melamine polyphosphate (MPP) and 25wt% of nano-montmorillonite according to the weight ratio, and mix them uniformly to prepare a compound halogen-free Flame retardant, then dry at 80°C-85°C for 30-45 minutes, and set aside; (2) Add nano-calcium carbonate and ethylene glycol w...

Embodiment 2

[0021] A polyethylene composite material with halogen-free flame-retardant modification and core-shell structure toughening, its components are: polyethylene 75%, nano-calcium carbonate 8%, diisocyanate 1%, ethylene glycol 2%, compound type halogen-free flame retardant 10%, maleic anhydride grafted ethylene-propylene-diene copolymer (EPDM-g-MAH) 3%, EVA wax 0.6%, hindered phenol antioxidant 1010 and sub- Phosphate antioxidant 168 compound 0.4%. The compound halogen-free flame retardant is a compound of 50wt% amine polyphosphate (APP), 25wt% melamine polyphosphate (MPP) and 25wt% nano-montmorillonite.

[0022] Preparation method: (1) Weigh 50wt% of ammonium polyphosphate (APP), 25wt% of melamine polyphosphate (MPP) and 25wt% of nano-montmorillonite according to the weight ratio, and mix them uniformly to prepare a compound halogen-free Flame retardant, then dry at 80°C-85°C for 30-45 minutes, and set aside; (2) Add nano-calcium carbonate and ethylene glycol weighed according t...

Embodiment 3

[0024] A polyethylene composite material with halogen-free flame-retardant modification and core-shell structure toughening, its components are: polyethylene 52%, nano-calcium carbonate 12%, diisocyanate 2%, polycarbonate 4% glycol, 20% compound halogen-free flame retardant, 8% ethylene-methyl acrylate-glycidyl methacrylate terpolymer (E-MA-GMA), 1.5% OP wax, hindered phenol The compound of antioxidant 1010 and phosphite antioxidant 168 is 0.5%. The compound halogen-free flame retardant is a compound of 50wt% amine polyphosphate (APP), 25wt% melamine polyphosphate (MPP) and 25wt% nano-montmorillonite.

[0025] Preparation method: (1) Weigh 50wt% of ammonium polyphosphate (APP), 25wt% of melamine polyphosphate (MPP) and 25wt% of nano-montmorillonite according to the weight ratio, and mix them uniformly to prepare a compound halogen-free Flame retardant, then dry at 80°C to 85°C for 30 to 45 minutes, and set aside; (2) Add nano-calcium carbonate and polycarbonate diol weighed a...

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PUM

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Abstract

The invention discloses a polyethylene composite material subjected to halogen-free flame-retardant modification and core-shell structure toughening. The polyethylene composite material comprises the following components by mass percent: 50 to 80 percent of polyethylene, 8 to 12 percent of nano calcium carbonate, 1 to 2 percent of diisocyanate, 2 to 4 percent of binary hydroxyl compounds, 10 to 25 percent of a complex halogen-free flame-retardant agent, 3 to 8 percent of a compatilizer, 0.5 to 2 percent of a dispersing agent and 0.1 to 1 percent of an antioxidant. The polyethylene composite material has beneficial effects that the diisocyanate and the binary hydroxyl compounds are subjected to stirring and addition polymerization in a mixer to generate polyurethane elastomer covering the surface of the nano calcium carbonate, a core-shell structure adopting the nano calcium carbonate as a core and the elastomer as a shell is formed, the advantages of the nano calcium carbonate and the advantages of the elastomer can be respectively realized, a synergistic effect of enhancing and toughening the polyethylene can be realized, and the polyethylene is modified by the halogen-free flame-retardant agent, so that the polyethylene composite material is efficient, less in smoke, non-toxic, free from molten drops, environmentally friendly and capable of reaching the UL94-0 flame-retardant-grade standard; the prepared polyethylene composite material has characteristics of good processing performance, excellent comprehensive performance, high universality and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polyethylene composite material with halogen-free flame-retardant modification and core-shell structure toughening. Background technique [0002] Polyethylene is a light, non-toxic, thermoplastic material with excellent electrical insulation properties and chemical corrosion resistance. It is cheap and easy to form and process. It is widely used in electrical appliances, chemicals, food, machinery and other industries. However, polyethylene also has disadvantages such as poor impact strength, insufficient toughness and poor flame resistance, so flame retardant modification and toughening are usually required to broaden its application range. Contents of the invention [0003] The object of the present invention is to provide a polyethylene composite material with halogen-free flame-retardant modification and core-shell structure toughening. [0004] The technical s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08L51/04C08L23/08C08L75/04C08K13/06C08K9/10C08K3/26C08K3/32C08K3/34C08K5/3492C08K5/134C08K5/526C08G18/32C08G18/44
CPCC08L23/06C08G18/3206C08G18/44C08K2201/011C08L2201/02C08L2201/22C08L2205/025C08L2205/03
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE
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