CN103756204B - A kind of pump valve PET of resistance to creep modified teflon material - Google Patents
A kind of pump valve PET of resistance to creep modified teflon material Download PDFInfo
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- CN103756204B CN103756204B CN201310672299.0A CN201310672299A CN103756204B CN 103756204 B CN103756204 B CN 103756204B CN 201310672299 A CN201310672299 A CN 201310672299A CN 103756204 B CN103756204 B CN 103756204B
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Abstract
The invention belongs to polymeric material field, being specifically related to a kind of pump valve PET of resistance to creep modified teflon material, does is this material made up of the raw material of following weight part: polytetrafluorethylepowder powder 100, PET? 12-14, silicon-dioxide 2-4, nano-corundum powder 1-2, potassium hexatitanate powder 2-4, auxiliary agent 4-5; The present invention utilizes the raw material such as PET, nano-corundum powder to carry out modification enhancement process to tetrafluoroethylene, its mechanical property is improved, the material of preparation has acted on the excellent performance of tetrafluoroethylene itself, the indexs such as its hardness, creep resistance, wear resisting property are all improved, pump, valve device prepared by modified teflon material provided by the invention, long service life, safe and reliable.
Description
Technical field
The invention belongs to polymeric material field, be specifically related to a kind of pump valve PET of resistance to creep modified teflon material and preparation method thereof.
Background technology
It is little that polytetrafluoroethylmaterial material has frictional coefficient, do not absorb water, difficult combustion, corrosion-resistant excellent performance properties such as grade, main as barrier film in pump valve, sealing member, the multiple device such as sealing friction pair, but in the application process of reality, it is large to there is linear expansivity in tetrafluoroethylene, poor dimensional stability, poor heat conductivity, easy-cold flow, the not shortcoming such as easy-formation, make its in use existing defects, have a strong impact on the performance of pump and valve, therefore, need to carry out modification to tetrafluoroethylene, improve its performance shortcomings, expand use range, increase the service life, guarantee the normal work of pump and valve.
Summary of the invention
The object of the invention is to, provide a kind of pump valve PET of resistance to creep modified teflon material, improve the mechanical property of polytetrafluoroethylmaterial material, to achieve these goals, the technical solution used in the present invention is as follows:
A kind of pump valve PET of resistance to creep modified teflon material, it is characterized in that, material of the present invention is made up of the raw material of following weight part: polytetrafluorethylepowder powder 100, PET12-14, silicon-dioxide 2-4, nano-corundum powder 1-2, potassium hexatitanate powder 2-4, auxiliary agent 4-5.
Described auxiliary agent is made up of the raw material of following weight part: attapulgite 30-35, clay 12-15, cuprous chloride 2-3, Graphene 1-2, zinc oxide 5-6, jade 4-5,3-aminopropyl trimethoxysilane 2-3, aluminum nitride powder 4-5, stalk ashes 1-2, dimethyl tin oxide 1-2, tea-polyphenol 1-2; Its preparation method is that attapulgite, clay are put into calcining furnace and calcine 3-4 hour at 800-830 DEG C, takes out cooling, pulverizes, puts into 12-15% aqueous hydrochloric acid, soaks 1-2 hour, filters, and with clear water washing, dries and get final product; Mixed with other surplus stock by the powder of drying, grinding distribution 2-3 hour, to obtain final product.
The described a kind of pump valve PET of resistance to creep modified teflon material, its production technique is:
(1), after tetrafluoroethylene being mixed with PET, pulverize for subsequent use;
(2) material of (1) is mixed with other raw material except auxiliary agent, under the condition of water as medium, be ground to 200-400 order, the powder dry for standby obtained;
(3) auxiliary agent is added in the material of (2), after being uniformly mixed, through compression molding, high temperature sintering, machining and get final product.
The invention has the advantages that: utilize the raw material such as PET, nano-corundum powder to carry out modification enhancement process to tetrafluoroethylene, its mechanical property is improved, the material of preparation has not only acted on the excellent performance of tetrafluoroethylene itself, the indexs such as its hardness, creep-resistant property, wear resisting property are all improved, pump, valve device prepared by modified teflon material provided by the invention, long service life, safe and reliable.
Embodiment
Embodiment
The present embodiment material is made up of following raw material: polytetrafluorethylepowder powder 100, PET14, silicon-dioxide 4, nano-corundum powder 2, potassium hexatitanate powder 4, auxiliary agent 5.
Described auxiliary agent is made up of the raw material of following weight part: attapulgite 30, clay 12, cuprous chloride 2, Graphene 1, zinc oxide 5, jade 4,3-aminopropyl trimethoxysilane 2, aluminum nitride powder 5, stalk ashes 2, dimethyl tin oxide 1, tea-polyphenol 1; Its preparation method is that attapulgite, clay are put into calcining furnace and calcine 3-4 hour at 800-830 DEG C, takes out cooling, pulverizes, puts into 12-15% aqueous hydrochloric acid, soaks 1-2 hour, filters, and with clear water washing, dries and get final product; Mixed with other surplus stock by the powder of drying, grinding distribution 2-3 hour, to obtain final product.
The described a kind of pump valve PET of resistance to creep modified teflon material, its production technique is:
(1), after tetrafluoroethylene being mixed with PET, pulverize for subsequent use;
(2) material of (1) is mixed with other raw material except auxiliary agent, under the condition of water as medium, be ground to 400 orders, the powder dry for standby obtained;
(3) auxiliary agent is added in the material of (2), after being uniformly mixed, through compression molding, high temperature sintering, machining and get final product.
The main technical details of material of the present invention is as follows:
Average wear coefficient is 2.3 × 10-5g/h, compressive strength 48MPa, compressive modulus of elasticity 1466MPa, flexural strength 18MPa, quality wear rate 0.21%, thermal expansivity (room temperature ~ 250 DEG C) 11.6 (10-5/ DEG C), permanent set 0.8%.
Claims (2)
1. the pump valve PET of a resistance to creep modified teflon material, it is characterized in that, this material is made up of the raw material of following weight part: polytetrafluorethylepowder powder 100, PET12-14, silicon-dioxide 2-4, nano-corundum powder 1-2, potassium hexatitanate powder 2-4, auxiliary agent 4-5;
Described auxiliary agent is made up of the raw material of following weight part: attapulgite 30-35, clay 12-15, cuprous chloride 2-3, Graphene 1-2, zinc oxide 5-6, jade 4-5,3-aminopropyl trimethoxysilane 2-3, aluminum nitride powder 4-5, stalk ashes 1-2, dimethyl tin oxide 1-2, tea-polyphenol 1-2; Its preparation method is that attapulgite, clay are put into calcining furnace and calcine 3-4 hour at 800-830 DEG C, takes out cooling, pulverizes, puts into 12-15% aqueous hydrochloric acid, soaks 1-2 hour, filters, and with clear water washing, dries and get final product; Mixed with other surplus stock by the powder of drying, grinding distribution 2-3 hour, to obtain final product.
2. a kind of pump valve PET of resistance to creep modified teflon material as claimed in claim 1, its production technique is:
(1), after tetrafluoroethylene being mixed with PET, pulverize for subsequent use;
(2) material of (1) is mixed with other raw material except auxiliary agent, under the condition of water as medium, be ground to 200-400 order, the powder dry for standby obtained;
(3) auxiliary agent is added in the material of (2), after being uniformly mixed, through compression molding, high temperature sintering, machining and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672299.0A CN103756204B (en) | 2013-12-12 | 2013-12-12 | A kind of pump valve PET of resistance to creep modified teflon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672299.0A CN103756204B (en) | 2013-12-12 | 2013-12-12 | A kind of pump valve PET of resistance to creep modified teflon material |
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| Publication Number | Publication Date |
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| CN103756204A CN103756204A (en) | 2014-04-30 |
| CN103756204B true CN103756204B (en) | 2016-01-20 |
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| CN201310672299.0A Active CN103756204B (en) | 2013-12-12 | 2013-12-12 | A kind of pump valve PET of resistance to creep modified teflon material |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105906999A (en) * | 2016-06-20 | 2016-08-31 | 安徽荣达阀门有限公司 | Corundum-filled carbon nano-teflon valve sealing ring |
| CN106751587B (en) * | 2016-12-28 | 2019-01-11 | 深圳市明鑫高分子技术有限公司 | graphene 3D printing material and preparation method thereof |
| CN113024975B (en) * | 2021-02-24 | 2022-11-08 | 浙江科赛新材料科技有限公司 | Large-diameter thin-wall polytetrafluoroethylene pasty extrusion pipe and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401699A (en) * | 2002-09-29 | 2003-03-12 | 南京工业大学 | Potassium hexatitanate whisker reinforced PTFE composite material |
| CN1560128A (en) * | 2004-02-26 | 2005-01-05 | 上海高分子材料研究开发中心 | High wear-resisting composite material of strenthen polytetrafuoro ethylene and fiber rod stone kind clay and preparation process and application thereof |
| CN101775186A (en) * | 2010-02-01 | 2010-07-14 | 南京肯特新材料有限公司 | Polytetrafluoroethylene composite material and product preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647762A (en) * | 1992-07-29 | 1994-02-22 | Ntn Corp | Molding method for tetrafluoroethylene resin composition containing metal inert agent |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401699A (en) * | 2002-09-29 | 2003-03-12 | 南京工业大学 | Potassium hexatitanate whisker reinforced PTFE composite material |
| CN1560128A (en) * | 2004-02-26 | 2005-01-05 | 上海高分子材料研究开发中心 | High wear-resisting composite material of strenthen polytetrafuoro ethylene and fiber rod stone kind clay and preparation process and application thereof |
| CN101775186A (en) * | 2010-02-01 | 2010-07-14 | 南京肯特新材料有限公司 | Polytetrafluoroethylene composite material and product preparation method thereof |
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| CN103756204A (en) | 2014-04-30 |
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