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

Preparation method of hollow filtering member and product thereof

A filter element and hollow technology, which is applied in the field of hollow filter element preparation, can solve problems such as clogging and interception, and achieve the effects of stable performance, excellent filtering effect and shortening processing time.

Inactive Publication Date: 2012-06-20
SHANGHAI BIOFIT ENVIRONMENTAL TECH
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3) Blockage and interception

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of hollow filtering member and product thereof
  • Preparation method of hollow filtering member and product thereof
  • Preparation method of hollow filtering member and product thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] Such as figure 1 Shown, the preparation method of a kind of hollow filter element of the present invention comprises:

[0031] Step 1: Use ultra-high molecular weight polyethylene powder as the base material, mix it with auxiliary materials to obtain the filter material, and fill it into the designed mold;

[0032] Step 2: heating and pressurizing the mold of the design after filling the filter material;

[0033] Step 3: demoulding to form the hollow filter.

[0034] The preparation method of the novel hollow filter element of the present invention adopts ultra-high molecular weight polyethylene powder as a base material, fills it into a designed mold, and forms the hollow filter element 7 through the process of heating and pressurizing. Among them, the matrix material UHMWPE has a viscosity-average molecular weight of 1 million to 10 million and an average particle size of 20-300um.

[0035] The base material ultra-high molecular weight polyethylene used in the meth...

Embodiment 1

[0042] At first on the inner surface of patrix 4, middle mold 5, lower mold 6, the surface of dividing plate 8 is coated with one deck Teflon material. The lower mold 6 is placed on the bottom, and the middle mold 5 is arranged on the lower mold 6 to match the lower mold 6. Then put a certain quality of ultra-high molecular weight polyethylene with a viscosity-average molecular weight of 6 million and an average particle diameter of 150um into the forming space of the middle mold 5. When the ultra-high molecular weight polyethylene is filled to the opening 3 of the middle mold 5 , the partition plate 8 is inserted into the middle mold 5 through the opening 3, and after being stretched out from the opening 3 at the other end, it is fixed and continues to fill until the middle mold 5 is filled. Finally, the upper mold 4 is fastened on the top of the middle mold 5 to complete the filling.

[0043] Then the entire mold is heated to 100°C under 3MPa pressure, and the residence tim...

Embodiment 2

[0045] At first on the inner surface of patrix 4, middle mold 5, lower mold 6, the outer surface of dividing plate 8 is coated with one deck Teflon material. The lower mold 6 is placed on the bottom, and the middle mold 5 is arranged on the lower mold 6 to match the lower mold 6. Then put a certain quality of ultra-high molecular weight polyethylene with a viscosity-average molecular weight of 3.5 million and an average particle diameter of 250um into the forming space of the middle mold 5. When the ultra-high molecular weight polyethylene is filled to the opening 3 of the middle mold 5 During this time, the partition plate 8 is inserted into the middle mold 5 through the opening 3, and after being stretched out from the opening 3 at the other end, it is fixed and continues to fill until the middle mold 5 is filled. Finally, the upper mold 4 is fastened on the top of the middle mold 5 to complete the filling.

[0046] Then the entire mold is heated to 110°C under 2MPa pressur...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a hollow filtering member and a product thereof. The method comprises the following steps of: mixing the ultra-high molecular weight polyethylene powder serving as a base material with auxiliary materials to obtain the material of a filtering member, and filling the material into a designed mould; heating and pressurizing the mould; and demoulding to obtain the hollow filtering member. In the invention, the existing particle sintering method is technically improved, the processing time is shortened, and a membrane with stable performance and good filtering effect can be obtained according to the needs; and particularly, a mould is designed in the test process, and a hollow integrated filtering device can be formed, thereby being favorable for using and popularizing the technology.

Description

technical field [0001] The invention belongs to the field of processing liquid and gas purification materials, and in particular relates to a method for preparing a hollow filter and a product thereof. Background technique [0002] There are various types and processing methods of filter materials, and the use of ultra-high molecular weight polyethylene (UHMWPE) powder to prepare filter devices has the advantages of convenient processing, excellent performance, long service life, and good filtering effect. At present, UHMWPE filter materials have received more and more attention in the aspects of "three pollution" filtration treatment, liquor filtration, chemical drug filtration, oil filtration, and battery isolation membrane. Ticona, Mitsui Chemicals, Brazil Petrochemical and other foreign companies have actively promoted the application of UHMWPE raw materials in the field of filtration in recent years, and have formed different grades according to different uses. [0003...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/10B29C51/30B29C51/46B01D39/00C08L23/06C08L71/02C08K3/26C08K3/04C08K3/16
Inventor 丁凯
Owner SHANGHAI BIOFIT ENVIRONMENTAL TECH