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Scratch-resistant flame-retardant PP modified material and preparation method thereof

A modified material and scratch-resistant technology, which is applied in the field of polymer materials, can solve the problems of failing the 750°C glow wire or needle flame test, soft surface of PP materials, and decreased flame retardancy, so as to improve the scratch resistance , good overall performance, good elastic recovery performance

Active Publication Date: 2019-12-17
东莞毅工工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, PP material has the defect that the surface is soft and easy to scratch
At present, researchers at home and abroad have improved the scratch resistance by adding scratch resistance additives, such as PMMA, wollastonite, microfiber, silicone, silicon dioxide, etc. Although a large amount of addition can significantly improve the scratch resistance, However, it will cause serious deterioration of the toughness of the material or a decrease in flame retardancy. Problems in toughness will cause the product to be broken or cracked by impact during production, transportation or user installation; problems in flame retardancy will lead to 750°C required by GB2099 safety regulations. Glow wire or needle flame test failed

Method used

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  • Scratch-resistant flame-retardant PP modified material and preparation method thereof
  • Scratch-resistant flame-retardant PP modified material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation of a scratch-resistant and flame-retardant PP modified material includes the following steps:

[0026] Step 1, in parts by mass, 45 parts of block copolymerized polypropylene, 15 parts of random copolymerized polypropylene, 5 parts of nano-alumina and polypropylene grafted high molecular weight polyorganosiloxane, acrylic acid-polysiloxane 2 parts of rubber-methyl methacrylate multi-polymer and acrylic acid-ethylene-propylene rubber-methyl methacrylate multi-polymer, 4 parts of silicon gel microencapsulated ammonium polyphosphate, graphene and magnesium aluminum double hydroxide Add 1.5 parts of doped nanomaterials, 2 parts of zinc stearate and 1.5 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester into the mixer, Stir and mix at 600 rpm to obtain a mixture;

[0027] Step 2: Add the mixture obtained in Step 1 into a twin-screw extruder, melt and mix at a temperature of 195-220°C, and then granulate, cool, dry, and ...

Embodiment 2

[0029] The difference from Example 1 is the composition of the PP modified material: 35 parts of block copolymerized polypropylene, 10 parts of random copolymerized polypropylene, 3 parts of nano-alumina and polypropylene grafted high molecular weight polyorganosiloxane, acrylic acid - 1 part of polysiloxane rubber-methyl methacrylate multi-polymer, 2 parts of polyurethane microencapsulated ammonium polyphosphate, 2 parts of nickel-aluminum double hydroxide doped nanomaterials, 1 part of silicone powder and disulfide Dilauryl propionate 1 part.

[0030] The rest are the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0032] The difference from Example 1 is the composition of the PP modified material: 40 parts of block copolymerized polypropylene, 12 parts of random copolymerized polypropylene, 4 parts of nano-alumina and polypropylene grafted high molecular weight polyorganosiloxane, acrylic acid - 3 parts of ethylene propylene rubber-methyl methacrylate multi-component copolymer, 3 parts of melamine resin microencapsulated ammonium polyphosphate, 1.8 parts of graphene and zinc aluminum double hydroxide doped nanomaterials, 2 parts of hydroxyl silicone oil and 4 parts , 1 part of 4'-thiobis(6-tert-butyl-3-methylphenol).

[0033] The rest are the same as in Embodiment 1, and will not be repeated here.

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PUM

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Abstract

The invention belongs to the technical field of high polymer materials, and especially, relates to a scratch-resistant flame-retardant PP modified material. The scratch-resistant flame-retardant PP modified material is composed of the following components in parts by mass: 35 to 60 parts of block co-polypropylene, 10 to 20 parts of random co-polypropylene, 3 to 8 parts of a scratch-resistant additive, 1 to 5 parts of a toughening modifier, 2 to 7 parts of a halogen-free flame retardant, 1 to 2 parts of a flame-retardant synergist, 1 to 3 parts of a lubricant and 1 to 2 parts of an antioxidant,wherein the scratch-resistant additive is nano aluminum oxide and polypropylene grafted high-molecular-weight polyorganosiloxane, and the toughening modifier is an acrylic acid-polysiloxane rubber-methyl methacrylate multipolymer and / or an acrylic acid-ethylene propylene rubber-methyl methacrylate multipolymer. Compared with the prior art, the PP modified material disclosed by the invention has scratch resistance, and the toughness and flame retardancy of the PP modified material are correspondingly improved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a scratch-resistant and flame-retardant PP modified material and a preparation method thereof. Background technique [0002] Polypropylene is a thermoplastic resin obtained by polymerizing propylene, referred to as PP. PP is a thermoplastic with light specific gravity, high surface hardness and high elasticity of the finished product, and PP also has good heat resistance. The product can be sterilized at a temperature above 100°C. Under the condition of no external force, 150°C It is not deformed and has good chemical stability. Except being corroded by concentrated sulfuric acid and concentrated nitric acid, it is relatively stable to various other chemical reagents. PP is suitable for making various chemical pipes and accessories. It has good anti-corrosion effect and high corrosion resistance The dielectric coefficient, and with the rise of temperature, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L23/14C08L87/00C08L51/04C08L51/08C08K13/06C08K9/10C08K3/32C08K3/04C08K3/22C08K5/098
CPCC08L53/00C08L2201/02C08L2201/22C08L2205/06C08L2201/08C08L2205/02C08L2205/035C08L2207/53C08K2003/2227C08K2201/011C08L23/14C08L87/005C08L51/085C08L51/04C08K13/06C08K9/10C08K3/32C08K3/042C08K3/22C08K5/098
Inventor 刘丽丽
Owner 东莞毅工工程塑料有限公司
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