LU504546B1 - Processing method of high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure - Google Patents

Processing method of high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure Download PDF

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Publication number
LU504546B1
LU504546B1 LU504546A LU504546A LU504546B1 LU 504546 B1 LU504546 B1 LU 504546B1 LU 504546 A LU504546 A LU 504546A LU 504546 A LU504546 A LU 504546A LU 504546 B1 LU504546 B1 LU 504546B1
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Luxembourg
Prior art keywords
plane
plane cocoon
cocoon
epoxy resin
high pressure
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LU504546A
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German (de)
Inventor
Chen Ding
Bin Zhou
Yumei Wang
Hongzhen Zhang
Jingjing Xing
Dan Wang
Zhongyuan Luo
Mengyan Xu
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Yancheng Polytechnic College
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Priority to LU504546A priority Critical patent/LU504546B1/en
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Publication of LU504546B1 publication Critical patent/LU504546B1/en

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/045Reinforcing macromolecular compounds with loose or coherent fibrous material with vegetable or animal fibrous material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2363/00Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2489/00Characterised by the use of proteins; Derivatives thereof

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention provides a processing method of a high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure, comprising plane cocoons, epoxy resin and low-melting polyester particles. The invention has the beneficial effects that the film material is formed by compounding the epoxy resin with the plane cocoon material, and the tear resistance and durability of the film material are improved by fully utilizing the special structure of the plane cocoon itself; and the tensile strength and modulus of the composite film can be increased by 300-500% and 600-1000% respectively compared with that of raw materials.

Description

DESCRIPTION LU504546
PROCESSING METHOD OF HIGH-STRENGTH FLAME-RETARDANT
COMPOSITE MEMBRANE MATERIAL WITH PLANE COCOON INFILTRATED WITH
EPOXY RESIN UNDER HIGH PRESSURE
TECHNICAL FIELD
The invention relates to the technical field of material production, in particular to a processing method of a high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure.
BACKGROUND
Silk is coagulated by silk liquid secreted by silk gland in silkworm, and it is composed of silk fibroin and sericin, which is the main body of the fiber and sericin covers the silk fibroin for protection. Silk gland is a transparent tubular tube, one on the left and one on the right, which is located on both sides of the silkworm body under the esophagus. It is thin and curved, and the two tubes are merged into one spinning tube in the silkworm head. Relevant data recorded the method that Chinese people took silk glands from the belly of wild silkworms in the Southern Song Dynasty and soaked them in vinegar to make fishing lines. However, in Henan, Hubei, Sichuan and other places, people still use similar methods to make fishing lines from silk glands of silkworm. These examples show that silk has good strength and durability.
Silkworm spinning technology has undergone long-term natural selection and extensive evolution. Although it is small in shape and light in weight, it has complex structure and unique functions, especially in wild silkworms living in complex external environment, and its cocoon structure and shape are more special. Plane cocoon, also known as "flat silk" or "plane cocoon", is to break the physiological habit of silkworms spinning cocoons, so that silkworms can no longer bind themselves, and spit silk into flat objects to form square or round cocoon paper, which can also be called " tiffany"U504546
According to requirements, one to tens of thousands of silkworms can be put into different flat carriers to make plane cocoon paper with different specifications, thicknesses and shapes. Although the forming method of plane cocoon is different from that of natural round cocoon, the layer and fiber structure of plane cocoon are completely consistent with the law of round cocoon.
There are many membrane materials in production and life, such as asphalt waterproof materials, reinforced membrane materials in construction and traffic, and the tear resistance is a very important index. The membrane materials produced by using only one material have poor tear resistance and lack of a skeleton structure as a support.
Therefore, a processing method of high-strength flame-retardant composite membrane materials with epoxy resin infiltrated into plane cocoons under high pressure is specially proposed to improve the defects of poor tear resistance and durability of membrane materials in existing production and life fields.
SUMMARY
The purpose of the present invention is to provide a processing method of a high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure, so as to solve the problems raised in the above background technology.
In order to achieve the above purpose, the present invention provides the following technical scheme.
A processing method of a high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure comprises:
S1, preparing plane cocoons;
S2, preparing inner seepage liquid or low-melting-point polyester mother particles;
S3, putting the plane cocoon into a corresponding mold, and adding the inner seepage liquid or low-melting polyester mother particles into the mold;
S4, infiltrating the exudate into the gap of the plane cocoon by high pressure undét/504546 the environment of high temperature and high pressure;
S5, taking out the plane cocoon and putting in a dryer to quickly obtain the composite membrane material.
Further, in S1, the number N of silkworms placed on the plane cocoon forming mold is calculated according to the thickness T of the required composite film material of the plane cocoon, and the effective area of the forming mold is the area S of the plane cocoon, and the average porosity of the plane cocoon is a constant value, and the porosity formula is as follows:
P=1-P./P; wherein, P. is the sample density of plane cocoon, and is calculated according to the weight G, area S and thickness T of plane cocoon sample, and P.=G/ST, where P; is the fiber density of silk in plane cocoon, so P=1 — G/STP;.
Further, in the S1, firstly, a plurality of silkworms are allowed to spin on a flat silk forming apparatus separately; after spinning, the plane cocoon is peeled off from the forming apparatus, and average weight is called a, P=1 — P./P;=1 — G/STP=1— Na/STP;, and after simplification, N=STP.(1—P)/a is obtained; finally, according to the effective area S of the mold, the number of silkworms is selected to prepare the required plane cocoon.
Further, in the S2, the infiltrating liquid is a polymer liquid capable of forming a film and a curing agent, and the polymer liquid is specifically bisphenol A epoxy resin or building waterproof liquid.
Further, in the S4, the pressure is between 1 and 10 MPa.
Further, in S5, the plane cocoon is taken out, the residual exudate on the surface of the plane cocoon is wiped clean, and then the plane cocoon is put into a dryer for rapid drying, and the temperature in the dryer is controlled between 100 and 120 degrees
Celsius for 10 to 30 minutes.
Compared with the prior art, the invention has the beneficial effects that the film material is formed by compounding the epoxy resin and the plane cocoon material, and the tear resistance and durability of the film material are improved by fully utilizing the special structure of the plane cocoon itself, and the tensile strength and modulus of tH&J504546 composite film can be increased by 300-500% and 600-1000% respectively compared with that of raw materials.
BRIEF DESCRIPTION OF THE FIGURES
In order to explain the technical scheme of the embodiment of the present invention more clearly, the drawings needed for the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary people in the field, other drawings can be obtained according to these drawings without creative work.
Fig. 1 is a flow chart of the present invention.
DESCRIPTION OF THE INVENTION
In the following, the technical scheme in the embodiment of the invention will be clearly and completely described with reference to the attached drawings. Obviously, the described embodiment is only a part of the embodiment of the invention, but not the whole embodiment. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative labor belong to the scope of protection of the present invention.
Referring to fig. 1, in an embodiment of that present invention, a processing method of a high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure comprises:
S1, preparing plane cocoons;
S2, preparing inner seepage liquid or low-melting-point polyester mother particles;
S3, putting the plane cocoon into a corresponding mold, and adding the inner seepage liquid or low-melting polyester mother particles into the mold;
S4, infiltrating the exudate into the gap of the plane cocoon by high pressure under the environment of high temperature and high pressure;
S5, taking out the plane cocoon and putting in a dryer to quickly obtain tH&J504546 composite membrane material.
Embodiment 1
The plane cocoon material is put into a suitable mold, and the inner exudate is poured into the mold, wherein the inner exudate is a polymer liquid capable of forming a film and a curing agent, specifically bisphenol A epoxy resin and the curing agent; the plane cocoon is immersed by bisphenol A epoxy resin, and the mold is put into a high-temperature and high-pressure environment, the pressure is controlled at 1-10Mpa, and the temperature is 100-120 degrees Celsius. The bisphenol A epoxy resin quickly penetrates into the pores of the plane cocoon, the plane cocoon is taken out, the bisphenol A epoxy resin remaining on the surface is cleaned, then the temperature of the dryer is set at 100 degrees Celsius, and the plane cocoon is put into the dryer for rapid drying and curing for 30 minutes, thus obtaining the composite membrane material.
Embodiment 2
Firstly, the low-melting polymer master batch is evenly spread in the mold, then the plane cocoon material is placed on the polyester master batch, and the low-melting polymer master batch is spread on the plane cocoon, and its melting point is less than 120 degrees Celsius. In this temperature range, then the mold is placed in a high-pressure and high-temperature environment, and the pressure is set at 1-10Mpa, and the temperature is 110 degrees Celsius. The low-melting polymer master batch melts and penetrates into the pores of the plane cocoon, and the mold is taken out. Then, the temperature of the dryer was set at 100 degrees Celsius, and the plane cocoon was put into the dryer for rapid drying and curing for 20 minutes, thus forming the composite membrane material.
It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, but can be realized in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the above description, so it is intended to embrace all changes that come within the meaning and range of equivalents of the claims. Any reference signs in tHéJ504546 claims shall not be construed as limiting the claims concerned.
In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution, and this description of the specification is only for the sake of clarity. Those skilled in the art should take the specification as a whole, and the technical solutions in various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims (6)

CLAIMS LU504546
1. A processing method of a high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure, comprising: S1, preparing plane cocoons; S2, preparing inner seepage liquid or low-melting-point polyester mother particles; S3, putting the plane cocoon into a corresponding mold, and adding the inner seepage liquid or low-melting polyester mother particles into the mold; S4, infiltrating the exudate into the gap of the plane cocoon by high pressure under the environment of high temperature and high pressure; S5, taking out the plane cocoon and putting in a dryer to quickly obtain the composite membrane material.
2. The processing method of the high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure according to claim 1, wherein in S1, the number N of silkworms placed on the plane cocoon forming mold is calculated according to the thickness T of the required composite film material of the plane cocoon, and the effective area of the forming mold is the area S of the plane cocoon, and the average porosity of the plane cocoon is a constant value, and the porosity formula is as follows: P=1 — P./Pe, wherein, P. is the sample density of plane cocoon, and is calculated according to the weight G, area S and thickness T of plane cocoon sample, and P.=G/ST, where P; is the fiber density of silk in plane cocoon, so P=1 — G/STP;.
3. The processing method of the high-strength flame-retardant composité/504546 membrane material with plane cocoon infiltrated with epoxy resin under high pressure according to claim 2, wherein in the S1, firstly, a plurality of silkworms spin on a flat silk forming apparatus separately; after spinning, the plane cocoon is peeled off from the forming apparatus, and average weight is called a, P=1 — P./P=1 — G/STP=1— Na/STP; is simplied to obtain N=STP.(1—P)/a; finally, according to the effective area S of the mold, the number of silkworms is selected to prepare the required plane cocoon.
4. The processing method of the high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure according to claim 1, wherein in the S2, the infiltrating liquid is a polymer liquid which is capable of forming a film and a curing agent, and the polymer liquid is specifically bisphenol À epoxy resin or building waterproof liquid.
5. The processing method of the high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure according to claim 1, wherein in the S4, the pressure is between 1 and 10 MPa.
6. The processing method of the high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure according to claim 1, wherein in S5, the plane cocoon is taken out, the residual exudate on the surface of the plane cocoon is wiped clean, and then the plane cocoon is put into a dryer for rapid drying, and the temperature in the dryer is controlled between 100 and 120 degrees Celsius for 10 to 30 minutes.
LU504546A 2023-06-20 2023-06-20 Processing method of high-strength flame-retardant composite membrane material with plane cocoon infiltrated with epoxy resin under high pressure LU504546B1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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LU504546B1 true LU504546B1 (en) 2023-12-20

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Effective date: 20231220