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Low-luster polypropylene blending modified material and preparation method thereof

A technology of blending modification and low density polyethylene, which is applied in the field of polypropylene blending and modification materials, can solve the problems of great influence on mechanical properties and poor effect of inorganic matting materials, and achieves reduced gloss and good matting effect. , the effect of surface reduction

Inactive Publication Date: 2008-02-13
广东波斯科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor effect of inorganic matting materials and great influence on mechanical properties, and to prepare a new PP blended modified material with good matting effect and better mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Under normal temperature and pressure, mix HDPE 30%, PP 68.3%, DCP 0.2%, 10100.2%, 1680.2%, zinc stearate 0.1%, talcum powder 1% in a high-speed mixer for 5 minutes, and then use twin-screw extrusion The extruder is melted and blended, the temperature of the extruder is set at 160-200°C, and the screw speed is 200r / min. After pelletizing and drying, the matte PP blended modified material is obtained, and the sample is injected and its surface gloss is measured.

Embodiment 2

[0020] Under normal temperature and pressure, HDPE 40%, PP 57.35%, tert-butylperoxycumene 0.15%, 10760.2%, PEPQ 0.2%, magnesium stearate 0.1%, wollastonite 2% in a high-speed mixer Mix in medium for 10 minutes, and then use twin-screw extruder for melt blending. The temperature of the extruder is set at 150-220°C, and the screw speed is 300r / min. After pelletizing and drying, the matte PP blended modified material is obtained. , Injection molded sample and measure its surface gloss.

Embodiment 3

[0022] At normal temperature and pressure, mix LDPE 25%, PP71.4%, tert-butylperoxycumene 0.1%, BHT 0.2%, 6260.2%, calcium stearate 0.1%, and silicon dioxide 3% at high speed Mix in the machine for 15 minutes, and then use a twin-screw extruder for melt blending. The extruder temperature is set at 150-210°C, the screw speed is 300r / min, and the matte PP blending modification is obtained through pelletizing and drying processes. Materials, injection molded samples and measured their surface gloss.

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PUM

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Abstract

The present invention relates to the blending and modifying field of the polymer material, and discloses a polypropylene blend modified material with the lowered surface gloss. The polypropylene blend modified material of the present invention consists of the following components and weight percentages: 20 to 90 percent of polypropylene, 10 to 80 percent of polyethylene, 0 to 2 percent of peroxide cross-linking agent, 0 to 5 percent of antioxidant, 0 to 5 percent of processing aid, and 0 to 30 percent of filler. The preparation method is: the components are blended in the high-speed mixer for 5 to 15 minutes according to the proportion; the twin-screw extruder is used to melt and blend; the temperature of the extruder is set to be between 100 and 220 Celsius system, and the rotating speed of the screw to be 150 to 400 rounds per minute; after pelletizing and drying, the polypropylene blend modified material can be made. The polypropylene blend modified material of the present invention has the lowered surface gloss and the good extinction effects, and can be used in the fields such as the packaging, daily necessities and building materials, and so on.

Description

Technical field [0001] The present invention relates to the field of polymer material blend modification, and specifically to a polypropylene blend modification material with reduced surface gloss. Background technique [0002] Polypropylene (PP) is a polymer made by polymerizing propylene as a monomer. Its molecular structure is linear hydrocarbon, and it is the lightest among existing commercial resins. Polypropylene is non-toxic, odorless, acid-resistant, and solvent-resistant. It is now widely used in daily necessities, packaging, medical and health care and other fields. [0003] With the continuous improvement of people's living standards, more requirements have been put forward for the appearance of products. There have been many research reports and documents on PP brightness and anti-reflection, but there are few research reports and patent documents on reducing the surface gloss of PP and producing a surface matte (matte) effect. The surface matting of polymer ma...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K5/524B29C47/40C08L23/06C08K5/14C08K3/00C08K5/09
Inventor 阳范文卢俊文
Owner 广东波斯科技股份有限公司
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