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Precipitation resistant, toughening and flame-retardant polypropylene composite material and preparation method thereof

A technology of flame retardant polypropylene and composite materials, applied in the field of flame retardant composite materials, can solve the problems of decreased mechanical properties and toughness of products, easy moisture absorption and hydrolysis of ammonium polyphosphate, and decreased flame retardant properties of products, etc. Excellent precipitation resistance, easy operation effect

Inactive Publication Date: 2014-12-10
江苏力达塑料托盘制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing ammonium polyphosphate expansion flame retardant efficiency is relatively low, the addition amount is large, ammonium polyphosphate is easy to absorb moisture and hydrolyze, and the flame retardant is easy to precipitate and absorb moisture during the long-term use of the product, resulting in the flame retardancy of the product. At the same time, due to the addition of flame retardants, the mechanical properties of the product, especially the toughness, are severely reduced. A precipitation-resistant, toughened, halogen-free expanded flame-retardant polypropylene composite material is provided. The invention uses polyphosphoric acid coated with siloxane Ammonium and melamine cyanurate are used as flame retardants, metal nano-oxides are used as synergistic flame retardants, ethylene-vinyl acetate copolymer (EVA) is used as toughening agents, and melt-blended with PP to prepare a product with good compatibility. It is a polypropylene mixture with high performance, flame retardancy and mechanical properties, which can be widely used in the fields of automobile industry, electronics, packaging, building materials, etc.

Method used

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  • Precipitation resistant, toughening and flame-retardant polypropylene composite material and preparation method thereof
  • Precipitation resistant, toughening and flame-retardant polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare raw materials: 73 parts of polypropylene T30S, 3 parts of POE, 2 parts of POE-g-MAH, 14 parts of siloxane-coated ammonium polyphosphate, 7 parts of melamine cyanurate, 1 part of nano-zinc oxide, 0.3 parts of antioxidant 168 , 0.2 parts of antioxidant 1010.

[0028] The preparation method is:

[0029] 1) 14 parts of siloxane-coated ammonium polyphosphate, 7 parts of melamine cyanurate, 1 part of nano-zinc oxide, 0.3 part of antioxidant 168, and 0.2 part of antioxidant 1010. Add it into a high mixer, stir for 4 minutes and mix evenly, then add 73 parts of polypropylene, 3 parts of POE, and 2 parts of POE-g-MAH, and continue stirring for 5 minutes to obtain a mixed material.

[0030] 2) Put the mixed material obtained in step 1 into a twin-screw extruder for mixing and plasticizing. The plasticizing temperature is 190°C-240°C. The extruded material is water-cooled, air-dried, and pelletized to obtain precipitation-resistant toughened flame-retardant polypropylene ...

Embodiment 2

[0032] Prepare raw materials: 65.5 parts of polypropylene T30S, 6 parts of EVA, 3 parts of PP-g-MAH, 18 parts of siloxane-coated ammonium polyphosphate, 6 parts of melamine cyanurate, 0.5 parts of nano-zinc oxide, 0.3 parts of antioxidant 168 , 0.2 parts of antioxidant 1010.

[0033] The preparation method is:

[0034] 1) Mix 18 parts of siloxane-coated ammonium polyphosphate, 6 parts of melamine cyanurate, 1 part of nano-zinc oxide, 0.3 part of antioxidant 168, and 0.2 part of antioxidant 1010. Add it into a high mixer, stir for 4 minutes and mix evenly, then add 65.5 parts of polypropylene, 6 parts of EVA, and 3 parts of PP-g-MAH, and continue stirring for 5 minutes to obtain a mixed material.

[0035] 2) Put the mixed material obtained in step 1 into a twin-screw extruder for mixing and plasticizing. The plasticizing temperature is 190°C-240°C. The extruded material is water-cooled, air-dried, and pelletized to obtain precipitation-resistant toughened flame-retardant polyp...

Embodiment 3

[0037] Prepare raw materials: 59 parts of polypropylene T30S, 8 parts of EVA, 3 parts of PE-g-GMA, 22 parts of siloxane-coated ammonium polyphosphate, 7 parts of melamine cyanurate, 0.5 parts of nano-zinc oxide, 0.3 parts of antioxidant 168 , 0.2 parts of antioxidant 1010.

[0038] The preparation method is:

[0039] 1) 22 parts of siloxane-coated ammonium polyphosphate, 7 parts of melamine cyanurate, 0.5 parts of nano-zinc oxide, 0.3 parts of antioxidant 168, and 0.2 parts of antioxidant 1010. Add it into a high mixer, stir for 4 minutes and mix evenly, then add 59 parts of polypropylene, 8 parts of EVA, and 3 parts of PE-g-GMA, and continue stirring for 5 minutes to obtain a mixed material.

[0040] 2) Put the mixed material obtained in step 1 into a twin-screw extruder for mixing and plasticizing. The plasticizing temperature is 190°C-240°C. The extruded material is water-cooled, air-dried, and pelletized to obtain precipitation-resistant toughened flame-retardant polyprop...

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Abstract

The invention discloses a precipitation resistant, toughening and flame-retardant polypropylene composite material and a preparation method thereof. The precipitation resistant, toughening and flame-retardant polypropylene composite material comprises the following raw materials ( taking100 parts as a measurement unit ): 50-75 parts of polypropylene, 2-15 parts of a toughening agent, 2-8 parts of a compatilizer, 10-25 parts of flame retardant silicane coated ammonium polyphosphate, 5-10 parts of flame retardant melamine cyanurate, 0.2-2 part (s) of an associative-effect flame retardant, 0.1-0.5 part of an anti-oxidant 168 and 0.1-0.8 part of an anti-oxidant 1010. According to the precipitation resistant, toughening and flame-retardant polypropylene composite material and the preparation method thereof, the manufacturing process has zero hydrolysis, excellent precipitation resistant performance and short production cycle; a produced material has superior performances. The preparation method for the halogen-free flame-retardant composite material, provided by the invention, is simple in the preparation method, easy to operate and relatively low in the cost.

Description

technical field [0001] The invention relates to a precipitation-resistant and toughened flame-retardant polypropylene composite material and a preparation method thereof, belonging to the technical field of flame-retardant composite materials. Background technique [0002] Polypropylene is a kind of thermoplastic with excellent comprehensive properties. It is widely used in industrial construction, automobile industry, home appliances, electronics, packaging, building materials and home furnishings. As a combustible material, polypropylene has many applications, and the resulting fire hazards are also increasing. [0003] Among the low-smoke and halogen-free phosphorus-based flame retardants, ammonium polyphosphate is the most widely used, because of its high phosphorus and nitrogen content, and the synergistic flame-retardant effect of phosphorus and nitrogen, the flame-retardant effect is superior, but there are also It has high hygroscopicity and is easy to be hydrolyzed...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L51/06C08K13/06C08K9/06C08K3/32C08K5/3492C08K3/22
CPCC08L23/12C08L2201/02C08L2201/08C08L2201/22C08L2205/025C08L2205/03C08L2205/08
Inventor 蔡涛涛蔡书芝赵航周晓东周继波石广钦周玉娟李莹
Owner 江苏力达塑料托盘制造有限公司
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