Unlock instant, AI-driven research and patent intelligence for your innovation.

Antibacterial oxygen-resistance heatproof composite pipe and preparation method thereof

A composite pipe, oxygen barrier technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of low surface bonding strength, loss of oxygen barrier effect, delamination, etc., to achieve the effect of water sanitation and good oxygen barrier effect

Inactive Publication Date: 2012-11-21
LIAONING KANGTAI PLASTIC TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once it absorbs water vapor, it loses its oxygen barrier effect
There is also a multi-layer extrusion, which uses adhesives to bond EVOH and heat-resistant layers together, but this surface has low bonding strength and is prone to delamination under steam erosion

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The invention relates to an antibacterial, oxygen-barrier and heat-resistant composite pipe material, which is composed of an outer oxygen barrier layer and an inner heat-resistant and antibacterial layer co-extruded as a whole.

[0018] The antibacterial, oxygen-barrier and heat-resistant composite pipe of the present invention is prepared from the following raw materials in parts by weight: 100 parts of high-density polyethylene, 15 parts of polyamide (MXD6), 2 parts of maleic anhydride grafted polyethylene, 100 parts of heat-resistant polyethylene (PE-RT) and 2 parts of nano-silver-zinc ions; the preparation steps are as follows: weigh each raw material in accordance with the stated weight parts; dry each raw material in a dryer before processing ; Unload the dried raw materials into high-density polyethylene, polyamide and maleic anhydride grafted polyethylene into a high-speed mixer and stir to obtain a stirring time of 2 minutes to obtain the oxygen barrier mixture fo...

Embodiment 2

[0021] The invention relates to an antibacterial, oxygen-barrier and heat-resistant composite pipe material, which is composed of an outer oxygen barrier layer and an inner heat-resistant and antibacterial layer co-extruded as a whole.

[0022] The antibacterial, oxygen-barrier and heat-resistant composite pipe of the present invention is prepared from the following raw materials in parts by weight: 100 parts of high-density polyethylene, 10 parts of polyamide, 0.5 parts of maleic anhydride grafted polyethylene, and heat-resistant poly 100 parts of ethylene, 1 part of nano-silver zinc ion. The preparation steps are as follows: weigh each raw material that meets the stated weight parts; dry each raw material in a dryer before processing; unload the dried raw material into high-density polyethylene, polyamide and Malay The acid anhydride grafted polyethylene is put into a high-speed stirrer and stirred to obtain a stirring time of 1 or 3 minutes to obtain the oxygen barrier mixture...

Embodiment 3

[0025] An antibacterial, oxygen-barrier and heat-resistant composite pipe, which is prepared from the following raw materials in parts by weight: 100 parts of high-density polyethylene, 8 parts of polyamide, 3 parts of maleic anhydride grafted polyethylene, and heat-resistant poly 100 parts of ethylene, 2 parts of nano silver zinc ion. Others are the same as in Example 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an antibacterial oxygen-resistance heatproof composite pipe, belonging to the technical field of polymer composite pipes. The antibacterial oxygen-resistance heatproof composite pipe is integrally formed by coextrusion of an outer oxygen-resistance layer and an inner heatproof antibacterial layer. The composite pipe is formed by adopting multi-layer coextrusion, wherein the molecular structures of the main body materials of the layers are similar, and excellent compatibility can be realized without using binder. The pipe has excellent oxygen-resistance effect, and can avoid scale formation on the inner wall, the pipe is difficult to layer, no bacteria or algae are bred, so that the water quality can be more sanitary. The composite pipe is suitable for being used ascold and hot water pipes, wherein the two-layer structure is suitable for being used as cold and heat water supply pipes or ground heating pipes.

Description

technical field [0001] The invention discloses an antibacterial, oxygen-resistant and heat-resistant composite pipe, which belongs to the technical field of polymer composite pipes. Background technique [0002] With the advent of the era of "replacing steel with plastic", the application of plastic products is becoming more and more extensive. Compared with metal pipes, plastic pipes have the advantages of light weight, low thermal conductivity, small heat loss, and convenient installation, but there is oxygen permeability. The disadvantage of high resistance is that when used as a hot water system, it will cause certain harm to the metal devices in the system, such as corrosion and leakage, which will affect the normal operation of the system and reduce the service life of the system. [0003] At present, EVOH is generally used as an oxygen inhibitor in this field, but there are hydroxyl groups in the molecular structure of EVOH resin, so it has hydrophilicity and hygrosco...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16L9/14B29C47/92B29C48/92
Inventor 林云青张文霖朱鹏飞郝洪波
Owner LIAONING KANGTAI PLASTIC TECH