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Drying method for polypropylene composite materials

A drying method and technology for composite materials, which are applied in the directions of drying solid materials, heating to dry solid materials, and non-heating to dry solid materials, etc., can solve the problems of brittleness, easy aging and wear resistance, and achieve low production cost, Easy to operate, good product quality effect

Inactive Publication Date: 2018-09-28
ANHUI HAINA SICHUAN PLASTICS TECH
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AI Technical Summary

Problems solved by technology

It has good dielectric properties and high-frequency insulation and is not affected by humidity, but it becomes brittle at low temperature, not wear-resistant and easy to age

Method used

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] A drying method for a polypropylene composite material, the drying method comprising: a drying method for raw materials and a drying method for a modified auxiliary agent in the preparation process of the polypropylene composite material;

[0020] The drying method of described raw material comprises the steps:

[0021] (1) Put the solids or powders that need to be dried in the raw materials into the drying trays laid with high-temperature resistant non-stick cloths;

[0022] (2) Preheat the drying oven to 40°C, and the preheating time is 20 minutes. Place the drying tray with raw materials in the drying oven, ...

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Abstract

The invention discloses a drying method for polypropylene composite materials. The drying method comprises the drying method of raw materials and the drying method of modified additives in the preparation method of the polypropylene composite materials; the drying method of the raw materials comprises the following steps that solid or powdery raw materials are put into a drying plate, and air drying and vacuum drying are conducted in sequence; and the drying method of the modified additives comprises the following steps that mixed, stirred and diffused modified additives are cooled to the roomtemperature, the modified additives are evenly paved in the drying plate, and air drying and vacuum drying are conducted in sequence. Compared with a traditional drying method for the polypropylene composite materials, the drying method has the good drying effect, drying is more even and comprehensive, preparation of the polypropylene composite materials is facilitated, prepared polypropylene composite material products are good in quality, the drying process is simple, manufacturing is easy, and the production cost is low.

Description

technical field [0001] The invention belongs to the field of preparation of polypropylene composite materials, and more specifically relates to a drying method for polypropylene composite materials. Background technique [0002] As a general-purpose polymer material, polypropylene (PP) has become the third fastest-growing general-purpose plastic after polyethylene and polyvinyl chloride. Because of its non-toxic, odorless, low density, strength, stiffness, and hardness resistance Thermal properties are better than low-pressure polyethylene, and can be used at around 100°C. It has good dielectric properties and high-frequency insulation and is not affected by humidity, but it becomes brittle at low temperature, not wear-resistant, and easy to age. It is suitable for making general mechanical parts, corrosion-resistant parts and insulating parts. Common organic solvents such as acids and alkalis have little effect on it and can be used for tableware. At the same time, polyp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B13/06F26B3/00F26B5/04
CPCB29B13/06B29B13/065F26B3/00F26B5/04
Inventor 强健娜
Owner ANHUI HAINA SICHUAN PLASTICS TECH
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