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Formula of modified polypropylene

A polypropylene and formula technology, applied in the field of modified polypropylene formula, can solve the problems of shortening processing cycle, tensile strength, bending strength, etc.

Inactive Publication Date: 2012-09-19
SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the high fluidity homopolypropylene is impacted by low temperature, the toughness is poor, the molding shrinkage is large, and the parts are easy to warp and deform, but its fluidity is good, the tensile strength and bending strength are high; the high fluidity copolymer polypropylene improves the low temperature Impact resistance, good flexibility, high flow rate and good physical properties make the design of large thin-walled injection molded products with complex structures feasible; and the processing cycle can be shortened and the processing temperature can be reduced in the production process , injection molding pressure and energy consumption; it has the advantages of good processing energy, easy punching and less product warping and deformation; relatively speaking, the fluidity of copolymerized polypropylene is slightly worse than that of homopolypropylene, and the tensile strength and bending strength are not as high as High fluidity homopolymer polypropylene

Method used

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Embodiment Construction

[0010] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0011] The present invention is a modified polypropylene formula, including polypropylene, contrast agent, light stabilizer, brightener, lubricating oil, antioxidant, the contrast agent is barium sulfate, and the light stabilizer is zinc oxide. The brightener is synthetic wax, the lubricating oil is 15# white oil, and the antioxidant is 2,6-di-tert-butyl-p-cresol.

[0012] Further, the weight percentage of each component of the modified polypropylene formula is that polypropylene accounts for 55%-70%, barium sulfate accounts for 20%-30%, zinc oxide accounts for 1%-2.5%, and synthetic wax accounts for 2.5%- 3%, 15# white oil accounts for 2%-4%, and 2,6-di-tert-butyl-p-cresol accounts for 4.5%-5.5...

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PUM

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Abstract

The invention discloses a formula of modified polypropylene, which comprises polypropylene, a contrast agent, a photostabilizer, a brightener, lubricating oil and an antioxidant, wherein the contrast agent is barium sulfate, the photostabilizer is zinc oxide, the brightener is synthetic wax, the lubricating oil is 15# white oil, and the antioxidant is 2,6-di-tert-butyl-para-cresol. According to the formula of the modified polypropylene, the modified polypropylene has the effects of no toxicity, aging resistance, bright and clean appearance, lubricating property and the like.

Description

technical field [0001] The invention relates to a plastic formula, in particular to a modified polypropylene formula. Background technique [0002] In recent years, with the improvement of polypropylene production process and the improvement of polymerization process, great progress has been made in the development and application of high fluidity polypropylene products; modified polypropylene has good processability, mechanical properties, weather resistance and Thermal performance and other advantages. Polypropylene injection molding products are widely used in packaging, transportation, home appliances, automobiles, offices and other fields. [0003] Polypropylene products are divided into homopolymerization type and copolymerization type, and copolymerization type is divided into block copolymerization type and random copolymerization type. When the high fluidity homopolypropylene is impacted by low temperature, the toughness is poor, the molding shrinkage is large, an...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L91/00C08L91/06C08K3/30C08K3/22C08K5/13
Inventor 徐春华
Owner SUZHOU NEW DISTRICT HUASHIDA ENG PLASTICS