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Flat glass fiber reinforced flame-retardant PP composite material and preparation method thereof

A composite material and flat glass fiber technology, which is applied in the field of polymer material processing, can solve the problems of limiting the application of glass fiber reinforced polypropylene composite materials, glass fiber reinforced flame retardant PP materials, serious deformation, etc.

Pending Publication Date: 2020-10-23
横店集团得邦工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the orientation of the glass fiber phase in the system, the composite modification of polypropylene and glass fiber will lead to serious problems such as warping and deformation of glass fiber reinforced flame retardant PP materials, which limits the glass fiber reinforced polypropylene composite. Material application

Method used

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  • Flat glass fiber reinforced flame-retardant PP composite material and preparation method thereof
  • Flat glass fiber reinforced flame-retardant PP composite material and preparation method thereof
  • Flat glass fiber reinforced flame-retardant PP composite material and preparation method thereof

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Embodiment 1

[0025] A flat glass fiber reinforced flame-retardant PP composite material, comprising the following components by weight:

[0026]

[0027]

[0028] Wherein, the PP resin is a PP resin with isotacticity ≥ 98%, crystallinity ≥ 70%, and a melt index of 10-30g / 10min at a temperature of 230°C and a test load of 2.16kg; the compatibilizer It is a PP masterbatch grafted with maleic anhydride; the flat glass fiber is a microscopically flat E glass fiber with a width of 20-30 μm, a thickness of 4-10 μm, and a length of between 2500-3000 μm; the glass flakes are glass fragments with a thickness of 5 microns; the flame retardant is an intumescent flame retardant compounded with nitrogen and phosphorus, and its nitrogen content is 15±2%, The phosphorus content is 20±2%; the antioxidant is a compound system of hindered phenol and phosphite, and the mass ratio of hindered phenol and phosphite in the antioxidant is 2:3; the lubricant It is pentaerythritol stearate.

[0029] Prepare...

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Abstract

The invention belongs to the field of high polymer material processing, and discloses a flat glass fiber reinforced flame-retardant PP composite material and a preparation method thereof. The flat glass fiber reinforced flame-retardant PP composite material is prepared from the following components in parts by weight: 45-60 parts of PP resin, 3-5 parts of compatilizer; 10-30 parts of flat glass fiber, 3-7 parts of glass flakes, 25-30 parts of flame retardant, 0.1-0.5 part of antioxidant and 0.1-0.5 part of lubricant, wherein the flat glass fiber is microcosmic flat E glass fiber, the width ofthe flat glass fiber is 20-30 [mu] m, the thickness of the flat glass fiber is 4-10 [mu] m, and the length of the flat glass fiber is 2500-3000 [mu] m. According to the composite material, PP resin isused as a base material, and flat glass fiber reinforced matrix resin is selected so that the composite material has very good physical rigidity and warping resistance.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a flat glass fiber reinforced flame-retardant PP composite material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a commonly used thermoplastic resin in the world. It is widely used in the manufacture of auto parts due to its advantages such as low density, good chemical stability, corrosion resistance, non-toxicity, good formability, good gloss of finished products, and high cost performance. . However, the extreme oxygen index of polypropylene is very low, only about 18% is extremely flammable, and when burning, there will be molten dripping and casting fire, which is very easy to spread flames, so people have done a lot of research on improving the flame retardancy of polypropylene . [0003] Glass fiber reinforced polypropylene composites have many excellent properties, such as high strength and high toughness, good dimensio...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08K13/04C08K7/14C08K7/00C08K3/40C08K5/103C08J5/04
CPCC08J5/043C08J2323/12C08J2451/06C08K13/04C08K7/14C08K7/00C08K3/40C08K5/103C08K2201/004C08K2201/005
Inventor 陆龙威王晓东郝刘佳施凌程卫文
Owner 横店集团得邦工程塑料有限公司
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