阅读说明：本技术 一种超微细闭孔率保温管及其制备方法 (Ultra-fine closed-pore-rate heat-insulating pipe and preparation method thereof ) 是由 詹祖成 陈赵军 于 2019-10-30 设计创作，主要内容包括：本发明公开的属于保温管技术领域,具体为一种超微细闭孔率保温管及其制备方法,该超微细闭孔率保温管包括如下组成成分：玻璃纤维、抗氧化剂、纳米二氧化硅、珍珠岩、聚丙烯树脂、磷石膏粉末、高密度聚乙烯、羟基硅油、甲基硅油、发泡剂、架桥剂、稳定剂、着色剂,一种所述的超微细闭孔率保温管的制备方法,该超微细闭孔率保温管制备方法步骤如下：步骤一：原料称取：将玻璃纤维、抗氧化剂、纳米二氧化硅、珍珠岩、聚丙烯树脂、磷石膏粉末、高密度聚乙烯、羟基硅油、甲基硅油、发泡剂、架桥剂、稳定剂、着色剂按照上述比例进行称取,该发明提高了保温管的保温效果,延长使用寿命,同时降低了密度的综合效果。(The invention belongs to the technical field of heat preservation pipes, and particularly relates to a superfine closed-pore-rate heat preservation pipe and a preparation method thereof, wherein the superfine closed-pore-rate heat preservation pipe comprises the following components: glass fiber, antioxidant, nano silicon dioxide, perlite, polypropylene resin, phosphogypsum powder, high-density polyethylene, hydroxyl silicone oil, methyl silicone oil, foaming agent, bridging agent, stabilizer and coloring agent, and a preparation method of the ultrafine closed-cell-rate heat-insulating pipe comprises the following steps: the method comprises the following steps: weighing raw materials: the glass fiber, the antioxidant, the nano silicon dioxide, the perlite, the polypropylene resin, the phosphogypsum powder, the high-density polyethylene, the hydroxyl silicone oil, the methyl silicone oil, the foaming agent, the bridging agent, the stabilizer and the colorant are weighed according to the proportion.)

1. An ultra-fine closed-porosity insulating pipe, characterized in that: the ultra-fine closed-porosity heat-preservation pipe comprises the following components in parts by weight:

glass fiber: 10-25 parts; antioxidant: 0.1-0.45 part; nano silicon dioxide: 10-24 parts; perlite: 1-3 parts; polypropylene resin: 5-9 parts of a solvent; phosphogypsum powder: 0.1-0.5 part; 58-62 parts of high-density polyethylene; hydroxyl silicone oil: 2-6 parts; methyl silicone oil: 2-7 parts; foaming agent: 2-10 parts; 2-3 parts of a bridging agent; a stabilizer: 0.5-1.2 parts; colorant: 0.1 to 0.3 portion.

2. The ultra-fine closed-porosity thermal insulation pipe according to claim 1, wherein: glass fibers by weight: 10 parts of (A); antioxidant: 0.45 part; nano silicon dioxide: 10 parts of (A); perlite: 3 parts of a mixture; polypropylene resin: 5 parts of a mixture; phosphogypsum powder: 0.5 part; 58 parts of high-density polyethylene; hydroxyl silicone oil: 6 parts of (1); methyl silicone oil: 2 parts of (1); foaming agent: 10 parts of (A); 2 parts of a bridging agent; a stabilizer: 1.2 parts; colorant: 0.1 part.

3. The ultra-fine closed-porosity thermal insulation pipe according to claim 1, wherein: glass fibers by weight: 25 parts of (1); antioxidant: 0.1 part; nano silicon dioxide: 24 parts of (1); perlite: 1 part; polypropylene resin: 9 parts of (1); phosphogypsum powder: 0.1 part; 62 parts of high-density polyethylene; hydroxyl silicone oil: 2 parts of (1); methyl silicone oil: 7 parts; foaming agent: 2 parts of (1); 3 parts of a bridging agent; 0.5 part of stabilizer; colorant: 0.3 part.

4. The ultra-fine closed-porosity thermal insulation pipe according to claim 1, wherein: glass fibers by weight: 17.5 parts; antioxidant: 0.27 part; nano silicon dioxide: 17 parts of (1); perlite: 2 parts of (1); polypropylene resin: 7 parts; phosphogypsum powder: 0.3 part; 60.5 parts of high-density polyethylene; hydroxyl silicone oil: 4 parts of a mixture; methyl silicone oil: 4.5 parts; foaming agent: 6 parts of (1); 2.5 parts of a bridging agent; 0.85 part of stabilizer; colorant: 0.2 part.

5. The ultra-fine closed-porosity thermal insulation pipe according to claim 1, wherein: the colorant is a color glue.

6. The ultra-fine closed-porosity thermal insulation pipe according to claim 1, wherein: the foaming agent is one or a mixture of a plurality of rubber foaming agents, glass foaming agents, plastic foaming agents and polyurethane foaming agents.

7. A method for producing an ultra-fine closed-porosity thermal insulating pipe according to any one of claims 1 to 6, characterized in that: the preparation method of the ultramicro-fine closed-pore-rate heat-insulating pipe comprises the following steps:

the method comprises the following steps: weighing raw materials: weighing glass fiber, antioxidant, nano silicon dioxide, perlite, polypropylene resin, phosphogypsum powder, high-density polyethylene, hydroxyl silicone oil, methyl silicone oil, foaming agent, bridging agent, stabilizer and colorant according to the proportion;

step two: mixing: mixing nano silicon dioxide and perlite, grinding by using a grinding device, sieving by using a 40-70-mesh sieve, adding glass fiber, stirring to obtain a mixed material A, mixing polypropylene resin and phosphogypsum powder, uniformly stirring, and finally adding high-density polyethylene, and uniformly stirring to obtain a mixed material B;

step three: open mixing: mixing the mixed material A and the mixed material B, adding an antioxidant, hydroxyl silicone oil, methyl silicone oil, a foaming agent, a bridging agent, a stabilizer and a coloring agent at the same time, heating to 195 ℃, vacuumizing for 20-30 minutes, and cooling for 6-10 hours to obtain a mixed material C;

step four: slicing: putting the mixed material C after open milling into a slicing machine for slicing;

step five: and (3) extrusion molding: putting the sliced materials into an extruder, and extruding and molding;

step six: and (3) vulcanization foaming: inputting the extruded and molded material into an electric heating cyclone hot air channel by a conveyer belt, and vulcanizing and foaming at the temperature of 200-250 ℃;

step seven: cooling and packaging: cooling and packaging the vulcanized and foamed article to obtain the product.

Technical Field

The invention relates to the technical field of heat preservation pipes, in particular to an ultra-fine closed porosity heat preservation pipe and a preparation method thereof.

Background

At present, people's consciousness of energy conservation in various production and life is continuously improved, and heat-insulating coating materials are widely used in various industrial pipelines, kilns, buildings and the like. The existing commonly used heat insulation materials such as asbestos, glass fiber felt, aluminum silicate cotton or glass fiber cloth and the like mostly adopt means for increasing the thickness of the materials in order to improve the heat insulation effect, but due to the fact that the thickness of the materials is increased when the heat insulation materials need to be coated on a pipeline, the coating effect and the number of layers of the coating can be influenced.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the conventional ultra-fine closed-porosity insulating pipe.

Accordingly, an object of the present invention is to provide an ultra-fine closed-porosity heat-insulating pipe which can improve the heat-insulating effect of the heat-insulating pipe, prolong the service life, and reduce the density.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:

an ultra-fine closed-porosity insulating pipe comprising: the ultra-fine closed-porosity heat-preservation pipe comprises the following components in parts by weight:

glass fiber: 10-25 parts; antioxidant: 0.1-0.45 part; nano silicon dioxide: 10-24 parts; perlite: 1-3 parts; polypropylene resin: 5-9 parts of a solvent; phosphogypsum powder: 0.1-0.5 part; 58-62 parts of high-density polyethylene; hydroxyl silicone oil: 2-6 parts; methyl silicone oil: 2-7 parts; foaming agent: 2-10 parts; 2-3 parts of a bridging agent; a stabilizer: 0.5-1.2 parts; colorant: 0.1 to 0.3 portion.

As a preferable aspect of the ultra-fine closed-porosity thermal insulation pipe according to the present invention, there is provided: glass fibers by weight: 10 parts of (A); antioxidant: 0.45 part; nano silicon dioxide: 10 parts of (A); perlite: 3 parts of a mixture; polypropylene resin: 5 parts of a mixture; phosphogypsum powder: 0.5 part; 58 parts of high-density polyethylene; hydroxyl silicone oil: 6 parts of (1); methyl silicone oil: 2 parts of (1); foaming agent: 10 parts of (A); 2 parts of a bridging agent; a stabilizer: 1.2 parts; colorant: 0.1 part.

As a preferable aspect of the ultra-fine closed-porosity thermal insulation pipe according to the present invention, there is provided: glass fibers by weight: 25 parts of (1); antioxidant: 0.1 part; nano silicon dioxide: 24 parts of (1); perlite: 1 part; polypropylene resin: 9 parts of (1); phosphogypsum powder: 0.1 part; 62 parts of high-density polyethylene; hydroxyl silicone oil: 2 parts of (1); methyl silicone oil: 7 parts; foaming agent: 2 parts of (1); 3 parts of a bridging agent; 0.5 part of stabilizer; colorant: 0.3 part.

As a preferable aspect of the ultra-fine closed-porosity thermal insulation pipe according to the present invention, there is provided: glass fibers by weight: 17.5 parts; antioxidant: 0.27 part; nano silicon dioxide: 17 parts of (1); perlite: 2 parts of (1); polypropylene resin: 7 parts; phosphogypsum powder: 0.3 part; 60.5 parts of high-density polyethylene; hydroxyl silicone oil: 4 parts of a mixture; methyl silicone oil: 4.5 parts; foaming agent: 6 parts of (1); 2.5 parts of a bridging agent; 0.85 part of stabilizer; colorant: 0.2 part.

As a preferable aspect of the ultra-fine closed-porosity thermal insulation pipe according to the present invention, there is provided: the colorant is a color glue.

As a preferable aspect of the ultra-fine closed-porosity thermal insulation pipe according to the present invention, there is provided: the foaming agent is one or a mixture of a plurality of rubber foaming agents, glass foaming agents, plastic foaming agents and polyurethane foaming agents.

A preparation method of the ultrafine closed-pore-rate heat-insulating pipe comprises the following steps:

the method comprises the following steps: weighing raw materials: weighing glass fiber, antioxidant, nano silicon dioxide, perlite, polypropylene resin, phosphogypsum powder, high-density polyethylene, hydroxyl silicone oil, methyl silicone oil, foaming agent, bridging agent, stabilizer and colorant according to the proportion;

step two: mixing: mixing nano silicon dioxide and perlite, grinding by using a grinding device, sieving by using a 40-70-mesh sieve, adding glass fiber, stirring to obtain a mixed material A, mixing polypropylene resin and phosphogypsum powder, uniformly stirring, and finally adding high-density polyethylene, and uniformly stirring to obtain a mixed material B;

step three: open mixing: mixing the mixed material A and the mixed material B, adding an antioxidant, hydroxyl silicone oil, methyl silicone oil, a foaming agent, a bridging agent, a stabilizer and a coloring agent at the same time, heating to 195 ℃, vacuumizing for 20-30 minutes, and cooling for 6-10 hours to obtain a mixed material C;

step four: slicing: putting the mixed material C after open milling into a slicing machine for slicing;

step five: and (3) extrusion molding: putting the sliced materials into an extruder, and extruding and molding;

step six: and (3) vulcanization foaming: inputting the extruded and molded material into an electric heating cyclone hot air channel by a conveyer belt, and vulcanizing and foaming at the temperature of 200-250 ℃;

step seven: cooling and packaging: cooling and packaging the vulcanized and foamed article to obtain the product.

Compared with the prior art: the ultramicro-closed-porosity heat-insulating pipe effectively improves the heat-insulating effect of the heat-insulating pipe, prolongs the service life and reduces the density of the heat-insulating pipe.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The invention provides an ultra-fine closed porosity heat preservation pipe, which comprises the following components in parts by weight:

glass fiber: 10-25 parts; antioxidant: 0.1-0.45 part; nano silicon dioxide: 10-24 parts; perlite: 1-3 parts; polypropylene resin: 5-9 parts of a solvent; phosphogypsum powder: 0.1-0.5 part; 58-62 parts of high-density polyethylene; hydroxyl silicone oil: 2-6 parts; methyl silicone oil: 2-7 parts; foaming agent: 2-10 parts; 2-3 parts of a bridging agent; a stabilizer: 0.5-1.2 parts; colorant: 0.1 to 0.3 portion.

The invention also provides a preparation method of the ultramicro closed porosity heat preservation pipe, which comprises the following steps: