CN101891928A - PCTFE modified filling composite material and production method thereof - Google Patents
PCTFE modified filling composite material and production method thereof Download PDFInfo
- Publication number
- CN101891928A CN101891928A CN2010102482918A CN201010248291A CN101891928A CN 101891928 A CN101891928 A CN 101891928A CN 2010102482918 A CN2010102482918 A CN 2010102482918A CN 201010248291 A CN201010248291 A CN 201010248291A CN 101891928 A CN101891928 A CN 101891928A
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- pctfe
- composite material
- mould
- colding pressing
- plasticizing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention relates to a PCTFE modified filling composite material which comprises the following components in percentage by weight: 75-95% of PCTFE polymer, 4.2-24.2% of carbon fiber and 0.3-0.8% of coupling agent. The production method comprises the following steps: (1) material mixing; (2) extruding and blending; (3) plastifying by heating; and (4) setting by cold pressing. The PCTFE modified filling composite material has the advantages of low melt viscosity, favorable flowability, favorable thermal conductivity, wide forming temperature range, low requirements for processing temperature and soaking time, and favorable product plastication, and can be formed by multiple methods.
Description
[technical field]
The present invention relates to 1 or the homopolymer of more unsaturated aliphatic based compound or the composition of multipolymer of having of contain fluorine atoms, be specifically related to voltalef.
[background technology]
PCTFE (voltalef) modified filling composite material is one of high molecular functional novel material, the of paramount importance high-end material in composite material field.Based on the PCTFE material, add carbon fiber or glass dimension and coupling agent under specific processing condition, after extruding by the twin screw extruder blend, join in the mould, through the plasticizing of heating, thus the PCTFE modification features composite material of the typing obtained performance good stable of colding pressing.This product main characteristic embodies high strength, high-modulus, antifatigue, corrosion-resistant, wear-resisting, low temperature resistant, high pressure resistant, radiation hardness, air-tightness excellence and environment resistant, and dimensional stability is good, and impermeable any gas is a kind of good barrier material; Can be used for products such as the component of structured material, low-temperature working equipment of mechanical means and chemical anticorrosion sealing member.But existing P CTFE modified filling composite material melt viscosity is big, and mobile difference is only to adopt the mould pressing method moulding.Poor thermal conductivity, mold temperature narrow range need strictness to control processing temperature and soaking time well, and difficulty is given and prevented that the product plasticizing is bad.
[summary of the invention]
The objective of the invention is: provide that a kind of melt viscosity is little, good fluidity, can adopt that several different methods moulding, thermal conductivity are good, the mold temperature wide ranges, processing temperature and soaking time are required tight, good PCTFE modified filling composite material and the production method thereof of product plasticizing.To improve the physical strength and the wear resisting property of PCTFE raw material, satisfy the service requirements that the PCTFE goods are applied in multiple war products such as the high-end training equipment of component, part under some harsh operating modes, aerospace, nuclear-propelled submarine.
The weight percent of PCTFE modified filling composite material each component of the present invention is:
PCTFE polymkeric substance 75%--95%
Carbon fiber 4.2%--24.2%
Coupling agent 0.3%--0.8%.
The diameter of described carbon fiber can be 10-30um, and described coupling agent can be a silane: structural formula r-Si-(OR), and wherein: OR is hydrolysable group a--alkoxyl group, R is an organo-functional group.
Correspondingly, the production method of PCTFE modified filling composite material of the present invention comprises the steps:
One, raw material mixes: each component is mixed in proportion stirring;
Two, extrude blend: adopt twin screw extruder to extrude, screw rod examination footpath is than being 20: 1 or 22: 1, and blending temperature is controlled to be: 125 ℃-140 ℃ of barrel temperatures, 145 ℃-150 ℃ of head temperatures;
Three, heating plasticizing: select corresponding mould according to the section bar specification, the raw material weighing after the blend is added in the ready mould, then mould is put into heating installation and under 245 ℃ of-270 ℃ of temperature, carried out the hot pressing plasticizing;
Four, the typing of colding pressing: after the raw material plasticizing fully, move in the equipment of colding pressing, colding pressing routinely typing operation is pressurized to the rated pressure of colding pressing steadily in 30 minutes under the temperature of coming out of the stove, and the pressurize cooling makes the goods typing; After treating that mould fully cools off, goods are taken out in the demoulding.
The group of coupling agent by above-mentioned two class differential responses makes the combination of working of the interface of inorganic materials and organic materials, thereby greatly improves the doing of various types of resins based composites, hygrometric state physical strength (flexural strength, tensile strength, interlaminar shear strength) and electrical property.
The mode of the silane coupling agent by adding specified proportion is utilized temperature crystallization control degree on top of, the PCTFE modification special type function material of final obtained performance good stable again.
The products obtained therefrom performance is shown in subordinate list.
The invention has the beneficial effects as follows: PCTFE modified filling composite material melt viscosity is little, good fluidity, can adopt that several different methods moulding, thermal conductivity are good, the mold temperature wide ranges, processing temperature and soaking time are required tight, the good PCTFE modified filling composite material of product plasticizing.To improve the physical strength and the wear resisting property of PCTFE raw material, satisfy the service requirements that the PCTFE goods are applied in multiple war products such as the high-end training equipment of component, part under some harsh operating modes, aerospace, nuclear-propelled submarine.Under the condition that does not change the PCTFE material performance, improve the physical strength and the wear resisting property of PCTFE modified filling composite material, satisfy the PCTFE goods and under some harsh operating modes, use, further the broadened application scope.
[description of drawings]
Accompanying drawing is a process flow diagram of the present invention.
[embodiment]
The weight percent of PCTFE modified filling composite material each component is in the first embodiment of the present invention:
PCTFE polymkeric substance 85%--95%
Carbon fiber 4.2%--14.2%
Coupling agent 0.3%--0.8%
Referring to accompanying drawing, the production method of the PCTFE modified filling composite material of first embodiment of the invention comprises the steps:
One, raw material mixes: each component is mixed in proportion stirring;
Two, extrude blend: adopt twin screw extruder to extrude, screw rod examination footpath is than being that 20: 1 or 22: 1, blending temperature are controlled at: 125 ℃-140 ℃ of barrel temperatures, 145 ℃-150 ℃ of head temperatures;
Three, heating plasticizing: select corresponding mould according to the section bar specification, the raw material weighing after the blend is added in the ready mould, then mould is put into heating installation at 245 ℃--carry out the hot pressing plasticizing under 270 ℃ of temperature;
Four, the typing of colding pressing: after the raw material plasticizing fully, move in the equipment of colding pressing, colding pressing routinely typing operation is pressurized to the rated pressure of colding pressing steadily in 30 minutes under the temperature of coming out of the stove, and the pressurize cooling makes the goods typing; After treating that mould fully cools off, goods are taken out in the demoulding.
The weight percent of PCTFE modified filling composite material each component is in the second embodiment of the present invention:
PCTFE polymkeric substance 75%--85%
Carbon fiber 14.2%--24.2%
Coupling agent: 0.4%--0.8%
Referring to accompanying drawing, the production method of the PCTFE modified filling composite material of second embodiment of the invention comprises the steps:
One, raw material mixes: each component is mixed in proportion stirring;
Two, extrude blend: adopt twin screw extruder to extrude, screw rod examination footpath is than being 20: 1 or 22: 1; Blending temperature control: 125 ℃-140 ℃ of barrel temperatures, 145 ℃-150 ℃ of head temperatures;
Three, heating plasticizing: select corresponding mould according to the section bar specification, the raw material weighing after the blend is added in the ready mould, then mould is put into heating installation at 245 ℃--carry out the hot pressing plasticizing under 270 ℃ of temperature;
Four, the typing of colding pressing: after the raw material plasticizing fully, move in the equipment of colding pressing, colding pressing routinely typing operation is pressurized to the rated pressure of colding pressing steadily in 30 minutes under the temperature of coming out of the stove, and the pressurize cooling makes the goods typing; After treating that mould fully cools off, goods are taken out in the demoulding.
The weight percent of PCTFE modified filling composite material each component is in the third embodiment of the present invention:
PCTFE polymkeric substance 85%
Carbon fiber 14.6%
Coupling agent 0.4%.
Referring to accompanying drawing, the production method of the PCTFE modified filling composite material of third embodiment of the invention comprises the steps:
One, raw material mixes: each component is mixed in proportion stirring;
Two, extrude blend: adopt twin screw extruder to extrude, screw rod examination footpath is than being 20: 1 or 22: 1; Blending temperature is controlled at: 130 ℃ of barrel temperatures, 148 ℃ of head temperatures;
Three, heating plasticizing: select corresponding mould according to the section bar specification, the raw material weighing after the blend is added in the ready mould, then mould is put into heating installation and under 260 ℃ of temperature, carried out the hot pressing plasticizing;
Four, the typing of colding pressing: after the raw material plasticizing fully, move in the equipment of colding pressing, colding pressing routinely typing operation is pressurized to the rated pressure of colding pressing steadily in 30 minutes under the temperature of coming out of the stove, and the pressurize cooling makes the goods typing; After treating that mould fully cools off, goods are taken out in the demoulding.
Subordinate list
Claims (5)
1. PCTFE modified filling composite material, it is characterized in that: the weight percent of each component is:
PCTFE polymkeric substance 75%--95%
Carbon fiber 4.2%--24.2%
Coupling agent 0.3%--0.8%.
2. according to a kind of PCTFE modified filling composite material of claim 1, it is characterized in that: the diameter of described carbon fiber can be 10-30um, described coupling agent can be a silane: structural formula r-Si-(OR), and wherein: OR is hydrolysable group a--alkoxyl group, R is an organo-functional group.
3. according to the production method of a kind of PCTFE modified filling composite material of claim 1, it is characterized in that comprising the steps:
One, raw material mixes: each component is mixed in proportion stirring;
Two, extrude blend: adopt twin screw extruder to extrude, screw rod examination footpath is than being 20: 1 or 22: 1, and blending temperature is controlled to be: 125 ℃-140 ℃ of barrel temperatures, 145 ℃ 150 ℃ of head temperatures;
Three, heating plasticizing: select corresponding mould according to the section bar specification, the raw material weighing after the blend is added in the ready mould, then mould is put into heating installation and under 245 ℃ of 270 ℃ of temperature, carried out the hot pressing plasticizing;
Four, the typing of colding pressing: after the raw material plasticizing fully, move in the equipment of colding pressing, colding pressing routinely typing operation is pressurized to the rated pressure of colding pressing steadily in 30 minutes under the temperature of coming out of the stove, and the pressurize cooling makes the goods typing; After treating that mould fully cools off, goods are taken out in the demoulding.
4. according to a kind of PCTFE modified filling composite material of claim 1, it is characterized in that: the weight percent of each component is:
PCTFE polymkeric substance 85%
Carbon fiber 14.6%
Coupling agent 0.4%.
5. according to the production method of a kind of PCTFE modified filling composite material of claim 4, it is characterized in that comprising the steps:
One, raw material mixes: each component is mixed in proportion stirring;
Two, extrude blend: adopt twin screw extruder to extrude, screw rod examination footpath is than being 20: 1 or 22: 1; Blending temperature is controlled at: 130 ℃ of barrel temperatures, 148 ℃ of head temperatures;
Three, heating plasticizing: select corresponding mould according to the section bar specification, the raw material weighing after the blend is added in the ready mould, then mould is put into heating installation and under 260 ℃ of temperature, carried out the hot pressing plasticizing;
Four, the typing of colding pressing: after the raw material plasticizing fully, move in the equipment of colding pressing, colding pressing routinely typing operation is pressurized to the rated pressure of colding pressing steadily in 30 minutes under the temperature of coming out of the stove, and the pressurize cooling makes the goods typing; After treating that mould fully cools off, goods are taken out in the demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102482918A CN101891928A (en) | 2010-08-09 | 2010-08-09 | PCTFE modified filling composite material and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102482918A CN101891928A (en) | 2010-08-09 | 2010-08-09 | PCTFE modified filling composite material and production method thereof |
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| CN101891928A true CN101891928A (en) | 2010-11-24 |
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| CN2010102482918A Pending CN101891928A (en) | 2010-08-09 | 2010-08-09 | PCTFE modified filling composite material and production method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103450605A (en) * | 2013-08-02 | 2013-12-18 | 大连工业大学 | Preparation method of modified polytrifluorochloroethylene material |
| CN104987630A (en) * | 2015-06-02 | 2015-10-21 | 孙文超 | Modified polytrifluorochloroethylene and molding process thereof |
| CN106317710A (en) * | 2016-08-15 | 2017-01-11 | 苏州扬子江新型材料股份有限公司 | Scrub film coated plate with high scrape resistance for ship decoration |
| CN107868184A (en) * | 2017-11-27 | 2018-04-03 | 郑州莉迪亚医药科技有限公司 | A kind of polytrifluorochloroethylene material of high intensity and preparation method thereof |
| CN107936420A (en) * | 2017-11-27 | 2018-04-20 | 郑州莉迪亚医药科技有限公司 | A kind of shock proof polytrifluorochloroethylene material and preparation method thereof |
| CN107936421A (en) * | 2017-11-29 | 2018-04-20 | 郑州莉迪亚医药科技有限公司 | A kind of fire-retardant composite material and its preparation method and application |
| CN109385152A (en) * | 2018-10-24 | 2019-02-26 | 河南锐盛电力科技有限公司 | A kind of construction method of power construction high-intensity building materials and electric power facility |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328151A (en) * | 1981-04-03 | 1982-05-04 | Pennwalt Corporation | Coated carbon fiber reinforced poly(vinylidene fluoride) |
-
2010
- 2010-08-09 CN CN2010102482918A patent/CN101891928A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328151A (en) * | 1981-04-03 | 1982-05-04 | Pennwalt Corporation | Coated carbon fiber reinforced poly(vinylidene fluoride) |
Non-Patent Citations (3)
| Title |
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| 《化工生产与技术》 20080425 钱知勉 氟树脂性能与加工应用（续22） 第8页第42行－第9页第4行 3 第15卷, 第2期 2 * |
| 《有机氟工业》 19950331 韦昌佩、石拓 增强聚三氟氯乙烯的研究 第1页右栏表2,5号配方 1、4、5 , 第1期 2 * |
| 《有机氟工业》 19950331 韦昌佩、石拓 增强聚三氟氯乙烯的研究 第1页左栏第20－25行 3 , 第1期 2 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103450605A (en) * | 2013-08-02 | 2013-12-18 | 大连工业大学 | Preparation method of modified polytrifluorochloroethylene material |
| CN103450605B (en) * | 2013-08-02 | 2015-07-15 | 大连工业大学 | Preparation method of modified polytrifluorochloroethylene material |
| CN104987630A (en) * | 2015-06-02 | 2015-10-21 | 孙文超 | Modified polytrifluorochloroethylene and molding process thereof |
| CN106317710A (en) * | 2016-08-15 | 2017-01-11 | 苏州扬子江新型材料股份有限公司 | Scrub film coated plate with high scrape resistance for ship decoration |
| CN107868184A (en) * | 2017-11-27 | 2018-04-03 | 郑州莉迪亚医药科技有限公司 | A kind of polytrifluorochloroethylene material of high intensity and preparation method thereof |
| CN107936420A (en) * | 2017-11-27 | 2018-04-20 | 郑州莉迪亚医药科技有限公司 | A kind of shock proof polytrifluorochloroethylene material and preparation method thereof |
| CN107936421A (en) * | 2017-11-29 | 2018-04-20 | 郑州莉迪亚医药科技有限公司 | A kind of fire-retardant composite material and its preparation method and application |
| CN109385152A (en) * | 2018-10-24 | 2019-02-26 | 河南锐盛电力科技有限公司 | A kind of construction method of power construction high-intensity building materials and electric power facility |
| CN109385152B (en) * | 2018-10-24 | 2021-08-24 | 河南锐盛电力科技有限公司 | High-strength building material for electric power construction and construction method of electric power facility |
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Open date: 20101124 |