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Polypropylene warm edge spacing bar and preparation method thereof

A warm edge spacer and polypropylene technology, which is applied in the field of polymer composite materials, can solve the problems of easy warpage and die deposits, and achieve the effects of reducing surface floating fibers, small warpage deformation, and improving bonding force.

Active Publication Date: 2020-11-24
青岛中新华美塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the technical problem that the glass fiber composite material is used to prepare the warm-edge spacer in the above-mentioned background technology, and die precipitates and warpage are prone to occur during extrusion. The present invention provides a polypropylene warm-edge spacer and its preparation method to effectively solve the die precipitates in the production process, thereby realizing continuous and stable production, and the prepared warm edge spacer has ultra-high rigidity and straightness

Method used

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  • Polypropylene warm edge spacing bar and preparation method thereof
  • Polypropylene warm edge spacing bar and preparation method thereof
  • Polypropylene warm edge spacing bar and preparation method thereof

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preparation example Construction

[0035] The present invention also provides a method for preparing the polypropylene warm edge spacer described in the above scheme, comprising the steps of:

[0036] 1) mixing each raw material and performing extrusion, strand drawing, cooling, pelletizing and drying in sequence to obtain granular products;

[0037] 2) extruding the granular product obtained in the step 1) to obtain a polypropylene warm edge spacer.

[0038] In the invention, various raw materials are mixed and then extruded, drawn, cooled, pelletized and dried to obtain granular products. In the present invention, it is preferred to use a twin-screw extruder for extrusion, glass fiber and mica are transferred to the twin-screw extruder from the side feeder, and the remaining components are transferred to the twin-screw extruder from the main feeder middle. In the present invention, the temperature of the barrel of the extruder is preferably 200-220° C., and the extruder is extruded through the machine head ...

Embodiment 1

[0041] In parts by weight, weigh 35 parts of extrusion grade polypropylene, 10 parts of compatibilizer, 5 parts of mica, 50 parts of glass fiber, 0.15 part of antioxidant 1010, 0.15 part of antioxidant 168, 0.4 part of weather resistance agent, and 0.1 part of nuclear agent, 3 parts of silicone powder, 0.1 part of fluoroelastomer, 0.5 part of deodorant and 1 part of black masterbatch. The glass fiber and mica are transferred to the twin-screw extruder from the side feeder, and the remaining components are transferred to the twin-screw extruder from the main feeder. The temperature of the barrel of the extruder is controlled at 200-220°C, and it is extruded from the machine head after twin-screw high-speed shearing, mixing and cooling. After extrusion, strand drawing, cooling, pelletizing and drying are carried out in sequence to obtain granular products. The obtained granular product is then extruded to obtain a polypropylene warm edge spacer.

Embodiment 2

[0043] Except that the composition of the raw materials is different, other operating steps are exactly the same as in Example 1. The specific raw material composition is by weight, weighing 45 parts of extrusion grade polypropylene, 5 parts of compatibilizer, 15 parts of mica, 35 parts of glass fiber, 0.4 part of antioxidant 1010, 0.4 part of antioxidant 168, weather resistance agent 0.2 parts, 0.3 parts of nucleating agent, 1 part of silicone powder, 0.3 parts of fluoroelastomer, 0.1 parts of deodorant and 3 parts of black masterbatch.

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Abstract

The invention discloses a polypropylene warm edge spacing bar and a preparation method thereof, and belongs to the technical field of polymer composite materials. The polypropylene warm edge spacing bar comprises the following raw material components in parts by weight: 35-45 parts of extrusion-grade polypropylene, 5-10 parts of a compatilizer, 5-15 parts of mica, 35-50 parts of glass fiber, 0.3-0.8 part of an antioxidant, 0.2-0.4 part of a weather-proof agent, 0.1-0.3 part of a nucleating agent, 1-3 parts of a silicone powder and 0.1-0.3 part of a fluorine-containing elastomer. According to the polypropylene warm edge spacing bar provided by the invention, the problem of die precipitates in the production process is effectively solved, and surface scratching and die scratching of the warmedge spacing bar are avoided, so that continuous and stable production is realized, and the prepared warm edge spacing bar has ultrahigh rigidity and straightness.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a polypropylene warm edge spacer and a preparation method thereof. Background technique [0002] Insulating glass is a new type of building material with good heat insulation, sound insulation, aesthetics and applicability, and can reduce the weight of buildings. The performance of insulating glass is superior to that of ordinary double-layer glass, so it has been recognized by all countries in the world. Insulating glass is to separate two or more pieces of glass evenly with effective support and bond and seal the periphery, so that a dry gas is formed between the glass layers. Space glassware. Its main materials are glass, warm edge spacer, angle bolts, butyl rubber, polysulfide glue, and desiccant. [0003] Warm edge spacer is a spacer made of low thermal conductivity material to reduce heat conduction at the edge of insulating glass. It mainly includes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L83/04C08L101/04C08K13/04C08K7/14C08K3/34
CPCC08L23/12C08L2205/035C08L2205/18C08L2205/08C08L83/04C08L101/04C08K13/04C08K7/14C08K3/34
Inventor 赵成方曹沛常胜张兆亭聂政郭彬张彩城王东
Owner 青岛中新华美塑料有限公司
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