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

A kind of preparation method of film-coated composite material

A composite material and film-coating technology, which is applied in the field of film-coated composite material preparation, can solve problems such as poor effect and low efficiency, and achieve the effects of reducing pollution, reducing energy waste, and shortening production time

Active Publication Date: 2020-04-07
CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing film-coated composite materials to solve the problems of low efficiency and poor effect in the production process of film-coated composite materials

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
  • A kind of preparation method of film-coated composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing a film-coated composite material, comprising the following steps:

[0030] (1) Raw material preparation: prepare raw sand and resin, the resin is a variety of thermoplastic resins, of which:

[0031] (Polymer speed of 50 seconds / fluidity of 15mm) phenolic resin accounted for 50%,

[0032] (Polymer speed is 30 seconds / fluidity is 30mm) phenolic resin two accounts for 50%;

[0033] According to the two resins accounting for 2% of the original sand weight, the total amount of thermoplastic resin particles was weighed to be 8 kg.

[0034] (2) Resin treatment: Microwaves are used to irradiate resin aggregates. The total input power of microwaves loaded on the resin is 5kW, and the total microwave power consumed per kilogram of thermoplastic resin is 0.1kWh. When the resin is heated by microwaves, the temperature rises rapidly, and the temperature rise rate is 0.4°C / sec, when the microwave passes through the resin body, the molecules and links in the ...

Embodiment 2

[0038] The difference from Example 1 is that multiple thermoplastic resins in step (1) include:

[0039] (Polymer speed of 80 seconds / fluidity of 15mm) phenolic resin accounted for 50%,

[0040] (Polymer speed of 50 seconds / fluidity of 15mm) phenolic resin II accounted for 30%,

[0041] (Polymer rate of 30 seconds / fluidity of 30mm) phenolic resin accounted for 20%.

[0042] In step (2), the resin is heated to 180-190°C to become a high-temperature and low-viscosity fluid state with a viscosity as low as 40-400 centipoise; the total microwave input power loaded on the resin is 8kW, and the total microwave power consumed per kilogram of thermoplastic resin is 1.0kWh , when the resin is heated by microwaves, the temperature rises rapidly, the temperature rise rate is 1.0° C. / second, and the frequency of microwave heating the resin is 2500 MHz.

Embodiment 3

[0044] The difference from Example 1 is that multiple thermoplastic resins in step (1) include:

[0045] (Polymer rate of 120 seconds / fluidity of 100mm) phenolic resin accounted for 20%,

[0046] (Polymer speed of 30 seconds / fluidity of 30mm) phenolic resin II accounted for 70%,

[0047] (Polymer speed of 120 seconds / fluidity of 100mm) bisphenol A modified phenolic resin accounted for 10%.

[0048] In step (2), the resin is heated to 190-200°C to become a high-temperature and low-viscosity fluid state with a viscosity as low as 400-1000 centipoise; the total microwave input power loaded on the resin is 60kW, and the total microwave power consumed per kilogram of thermoplastic resin is 3kWh, When the resin is heated by microwaves, the temperature rises rapidly, and the heating rate is 0.7°C / s.

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 belongs to the technical field of casting technique molding sand in the mechanical industry and particularly discloses a preparation method of a film coverage composite. The preparationmethod comprises the following steps of 1, raw material preparation; 2, resin treatment; 3, crude sand heating; and 4, film coverage. Compared with the prior art, the preparation method is advantageous in that before crude sand is covered with a film, resin is rapidly heated to be molten to be in the uniform macromolecule high-temperature low-viscosity flow state, and the problems that in the preparation process of film coverage granular materials, efficiency is low, and the effect is poor can be greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of casting technology molding sand in the machinery industry, and specifically discloses a preparation method of a film-coated composite material. Background technique [0002] With the rapid development of modern material industry technology, a large number of composite materials are used in various fields, especially in the traditional foundry industry and the field of oil and gas field stimulation technology, a variety of particles and powders are used as raw sand. Core sand and film-coated proppant products prepared by compounding various organic polymer materials. These products are usually called film-coated particle materials. The polymer materials for preparing film-coated particle materials are generally selected from resins. [0003] The traditional production method of coated granular materials is to heat the raw sand to make the temperature of the raw sand exceed the glass transition temperature ...

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 Patents(China)
IPC IPC(8): B22C1/22
CPCB22C1/22
Inventor 熊帆熊鹰周高胜
Owner CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP