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High fluidity nano talcum powder modified polypropylene composite material and its preparation method

A nano-talc, high-fluidity technology, applied in the field of nano-composite materials and their preparation, can solve the problems of decreased impact strength and elongation at break, and achieve improved fluidity and toughness, impact strength and elongation at break. The effect of improving the tensile strength, impact strength and elongation at break

Inactive Publication Date: 2005-01-26
横店集团得邦工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention mainly solves the problems of decreased impact strength and elongation at break caused by the improvement of rigidity and dimensional stability after polypropylene is filled with inorganic fillers in the past.

Method used

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  • High fluidity nano talcum powder modified polypropylene composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]Embodiment 1: 30 kilograms of nano talc powders with an average size of 30-120 nm are first put into a high mixer (set heating temperature is 110° C.). Start the high-mixer at a low speed, and then add 0.8 kg of γ-aminopropyltriethoxysilane (KH-550) diluted with white oil (0.4 kg of white oil, 0.4 kg of KH- 550), high-speed stirring treatment after 30 minutes, discharging to obtain mixture A2; simultaneously the weight ratio is: polypropylene is 100 parts, methyl methacrylate grafted polypropylene is 15 parts, and polyolefin elastomer (POE) is 20 parts , 2 parts of γ-aminopropyltriethoxysilane (KH-550), and 4 parts of microcrystalline paraffin. The above-mentioned substances are mixed by a high-speed mixer to obtain a mixture A1; then the mixtures A1 and A2 are fed into the Twin-screw or reciprocating single-screw extrusion equipment. The feeding ratio of A1 and A2 is set to be 141:50 through feeding control. The material is fully plasticized, melted and compounded und...

Embodiment 2

[0038] Embodiment 2: First put 30 kilograms of nano talcum powder with an average size of 30-120 nm into a high mixer (set heating temperature to be 110° C.). Start the high-mixer at a low speed, and then add 0.8 kg of N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane (KH-792) diluted with white oil after the temperature of the material rises to 80°C (including 0.4 kilograms of white oil, 0.4 kilograms of KH-792), high-speed stirring treatment 30 minutes after discharge to obtain mixture A2; simultaneously the weight ratio is: polypropylene is 100 parts, butyl acrylate grafted polypropylene is 8 parts, N-β -(Aminoethyl)-γ-aminopropyltrimethoxysilane (KH-792) is 4 parts, ethylene-propylene rubber (EPR) is 24 parts, polyethylene wax is 1.3 parts, and the above-mentioned materials are mixed by a high-speed mixer The mixture A1 is obtained; then the mixtures A1 and A2 are sent into twin-screw or reciprocating single-screw extrusion equipment by a precision metering device. The feedi...

Embodiment 3

[0039] Embodiment 3: first put 30 kilograms of nano talc powder with an average size of 30-120nm into a high mixer (set heating temperature to be 110° C.). Start the high-mixer at a low speed, and then add 0.6 kg of γ-glycidyl etheroxypropyl trimethoxysilane (KH-560) diluted with white oil after the temperature of the material rises to 80°C (of which 0.3 kg of white oil, 0.3 kg KH-560), high-speed stirring treatment after 30 minutes discharging to obtain mixture A2; simultaneously the weight ratio is: polypropylene is 100 parts, pentaerythritol triacrylate grafted polypropylene is 5 parts, polyolefin elastomer (POE) is 8 2.5 parts of γ-glycidyl etheroxypropyl trimethoxysilane (KH-560), 0.8 parts of EBO (N, N`-ethylene bisoleamide), and the above-mentioned materials are mixed by a high-speed mixer to obtain a mixture A1; then the mixtures A1 and A2 are sent into twin-screw or reciprocating single-screw extrusion equipment by a precision metering device. The feeding ratio of A1...

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Abstract

The invention discloses a high fluidity nano talcum powder modified polypropylene composite material and its preparation method, wherein the material is prepared from polypropylene resin, grafted and modified polypropylene resin, rubber toughening agent, coupling agent and nanometer talcum powder through blending and extrusion by screw rod extrusion machine set.

Description

technical field [0001] The invention relates to a polypropylene composite material and a preparation method thereof, in particular to a nanocomposite material composed of grafted polypropylene, a rubber toughening agent, polypropylene resin and the like and a preparation method thereof. Background technique [0002] Polypropylene has been widely used in the fields of furniture, chemical industrial products, packaging and transportation materials due to its abundant raw materials, low price, good comprehensive mechanical properties, and easy processing and molding. At present, the annual output of polypropylene in the world has exceeded 19.1 million tons, second only to polyethylene and second in general plastics. Polypropylene is the fastest-growing synthetic resin among thermoplastics, especially in the automotive industry, equipment, and furniture. The consumption is increasing rapidly. The driving force for the development of polypropylene lies in the development of high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/40C08K3/34C08L23/12
Inventor 施向阳周立辉叶建华
Owner 横店集团得邦工程塑料有限公司
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