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Alloy material for high fluidity thin-walled products and preparation method thereof

A technology of high fluidity and alloy materials, applied in the field of alloy materials, can solve problems such as insufficient impact resistance, influence on molding production cycle, and insufficient flow performance, so as to improve overall performance, processing stability, and processing flow performance effect

Active Publication Date: 2020-12-29
GUANGDONG GERUI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PC alloy materials currently developed on the market basically have insufficient impact resistance (about 500J / m) and insufficient flow properties (melt index about 17g / 10min), and are not suitable for the manufacture of thin-walled products, because Only by reaching the corresponding thickness can the high impact resistance be satisfied, and at the same time, because the fluidity is not good enough, the product is prone to surface roughness and other defects during injection molding, which will affect the molding production cycle

Method used

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  • Alloy material for high fluidity thin-walled products and preparation method thereof
  • Alloy material for high fluidity thin-walled products and preparation method thereof
  • Alloy material for high fluidity thin-walled products and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A high fluidity alloy material for thin-walled products, comprising the following raw materials in parts by weight:

[0054]

[0055]

[0056] The flow enhancer is a mixture of ethylene bis stearic acid amide and polyethylene wax in a weight ratio of 0.5:4; the impact modifier is polyolefin elastomer, modified nano-calcium carbonate, vinyl acetate-maleic anhydride The weight ratio of the graft copolymer is 2:0.5:2.5.

[0057] The flame retardant is a mixture of zinc borate, hydroquinone bis(diphenyl phosphate), wood powder and polyvinylidene fluoride in a weight ratio of 2:4.5:6:1.

[0058] The preparation method of modified nano calcium carbonate is:

[0059] (1) Stir and mix the NDZ-201 aluminate coupling agent absolute ethanol solution with a mass concentration of 25% and nano-calcium carbonate for 5 minutes, ultrasonically treat it for 10 minutes, and then add KH-550 silane coupling with a mass concentration of 10% The agent was mixed with anhydrous ethanol ...

Embodiment 2

[0071] A high fluidity alloy material for thin-walled products, comprising the following raw materials in parts by weight:

[0072]

[0073] Among them, the flow enhancer is a mixture of ethylene bis stearic acid amide and polyethylene wax in a weight ratio of 1:4; the impact modifier is polyolefin elastomer, modified nano-calcium carbonate, vinyl acetate-matrix The mixture of toric anhydride graft copolymer is 2.5:0.75:3.25 by weight; the flame retardant is zinc borate, resorcinol bis(diphenyl phosphate), wood powder and polyvinylidene fluoride by weight A mixture of 2:4.5:6:1.

[0074] Wherein, the preparation method of modified nano calcium carbonate is:

[0075] (1) Stir and mix the NDZ-201 aluminate coupling agent absolute ethanol solution with a mass concentration of 27.5% and nano-calcium carbonate for 8.5 minutes, ultrasonically treat it for 11 minutes, and then add KH-550 silane coupling agent with a mass concentration of 17.5% The coupling agent was mixed with a...

Embodiment 3

[0087] A high fluidity alloy material for thin-walled products, comprising the following raw materials in parts by weight:

[0088]

[0089] Among them, the flow enhancer is a mixture of ethylene bis stearic acid amide and polyethylene wax in a weight ratio of 1.5:4; the impact modifier is polyolefin elastomer, modified nano-calcium carbonate, vinyl acetate-matrix Toric anhydride graft copolymer is a mixture of 3:1:4 by weight; the flame retardant is zinc borate, bisphenol A (diphenyl phosphate), wood flour and polyvinylidene fluoride in a weight ratio of 2: 4. A mixture of 5:6:1 composition.

[0090] Wherein, the preparation method of modified nano calcium carbonate is:

[0091] (1) Stir and mix the NDZ-201 aluminate coupling agent absolute ethanol solution with a mass concentration of 30% and nano-calcium carbonate for 12 minutes, ultrasonically treat it for 12 minutes, and then add KH-550 silane coupling agent with a mass concentration of 25% The agent was mixed with a...

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Abstract

The invention relates to the technical field of alloy materials, in particular to an alloy material used for a high-fluidity thin-wall product and a preparation method thereof. The alloy material includes following raw materials by weight: 40-60 parts of PC resin, 10-15 parts of ABS resin, 20-30 parts of HDPE resin, 5-10 parts of a flame retardant, 6-18 parts of a flow enhancer, 10-15 parts of animpact modifier, 3-9 parts of a dispersant, 2-5 parts of an anti-hydrolysis agent and 1-3 parts of a compatibilizer. The flow enhancer is a mixture of ethylene bisstearamide and polyethylene wax. Theimpact modifier is a mixture of a polyolefin elastomer, modified nanometer calcium carbonate and a vinyl acetate-maleic anhydride grafted copolymer. When the wall thickness of a product of the alloy material is 2 mm, the impact strength is greater than 44.36 KJ / m<2>, and the MFR is greater than 20.14 g / 10 min. The alloy material is suitable for preparation of thin-wall products.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to an alloy material for high fluidity thin-walled products and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an amorphous thermoplastic resin with excellent comprehensive properties. It has excellent electrical insulation, elongation, dimensional stability and chemical corrosion resistance, and has high strength, heat resistance and cold resistance. It also has the advantages of self-extinguishing, flame retardant, non-toxic, and colorable. It is a widely used engineering plastic. However, the PC alloy materials currently developed on the market basically have insufficient impact resistance (about 500J / m) and insufficient flow properties (melt index of about 17g / 10min), and are not suitable for the manufacture of thin-walled products, because Only when the corresponding thickness is reached can the high impact resistance be satisfied. At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L23/06C08L97/02C08L51/04C08L27/16C08K13/06C08K9/06C08K9/04C08K3/26C08K3/38C08K5/523
CPCC08K2003/265C08K2003/387C08K2201/003C08K2201/011C08L69/00C08L2201/02C08L2205/025C08L2205/035C08L2205/06C08L2205/08C08L2205/16C08L2207/062C08L55/02C08L23/06C08L97/02C08L51/04C08L27/16C08K13/06C08K9/06C08K9/04C08K3/26C08K3/38C08K5/523
Inventor 郑宇航
Owner GUANGDONG GERUI NEW MATERIALS CO LTD