CN106015766A - Nylon composite steel pipe changing color under pressure - Google Patents
Nylon composite steel pipe changing color under pressure Download PDFInfo
- Publication number
- CN106015766A CN106015766A CN201610617244.3A CN201610617244A CN106015766A CN 106015766 A CN106015766 A CN 106015766A CN 201610617244 A CN201610617244 A CN 201610617244A CN 106015766 A CN106015766 A CN 106015766A
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- CN
- China
- Prior art keywords
- nylon
- layer
- steel pipe
- liquid crystal
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Polyamides (AREA)
Abstract
The invention discloses a nylon composite steel pipe changing color under pressure and belongs to the technical field of nylon composite material manufacturing. The nylon composite steel pipe comprises an outer steel pipe layer, a liquid crystal layer and a nylon lining layer from outside to inside, wherein the steel pipe layer is coated with the liquid crystal layer and then clamped in a centrifugal machine and center adjustment is conducted at the same time, the nylon lining layer is produced through centrifugal casting, and the nylon lining layer is combined with the liquid crystal layer after being solidified. A modified MC nylon pipe is combined with a steel pipe, high strength of a metal structure and corrosion resistance and wear resistance of the modified nylon pipe are combined, pipe pressure is detected through photochromic liquid crystal, pipe bodies are protected, and the service life of pipes is prolonged.
Description
Technical field
The invention belongs to the manufacturing technology field of nylon composite materials, be specifically related to a kind of changing color under pressure nylon multiple
Close steel pipe.
Background technology
Nylon is that a computer MSR Information system under the outstanding scientist's Tomas Carothers of the U.S. and leader thereof is developed
, it is the first synthetic fibers occurred in the world.Such product purpose is wide, is to mould Dai Gang, ferrum, copper
Deng the good material of metal, it is important engineering plastics；Monomer cast nylon extensively replaces the wear parts of plant equipment,
Copper and alloy is replaced to make the wear resistant pieces of equipment.It is applicable to make wear part, drive mechanism part, household electric
Device part, automobile making part, screw mandrel prevents machine components, chemical machinery part, chemical industry equipment.Such as whirlpool
Wheel, gear, bearing, impeller, crank, instrument board, drive shaft, valve, blade, screw mandrel, high-voltage cushion
Circle, screw, nut, sealing ring, shuttle, set letter, axle sleeve adapter etc..
Contemporary industry produces through conventional pipeline conveying corrosion, wear medium, it requires that pipeline has excellent
Wearability and corrosion resistance, existing steel strength height, good toughness, impact resistance, good welding performance, be defeated
Send the conventional pipelines such as granule materials, grinding, Korrosionsmedium, but steel pipe hardness is low, wear no resistance, resistance to
Corrosivity is poor, service life is short, cost is high.Accordingly, it would be desirable to a kind of novel lining composite steel tube.
Current existing tubing great majority are rigidity tubing, easily cause when the pressure of the fluid of tubing increases
Rupturing of tubing, thus the fluid in tubing is polluted.How to monitor tubing internal pressure demand in by
Cumulative big trend.Photochromic compound is one of important optical information material, and it stores in information, light
Recording materials, optics and the field such as false proof tool are widely used, but still apply in pipeline pressure detects
The fewest.
Summary of the invention
It is an object of the invention to provide a kind of changing color under pressure nylon composite steel tube.
A kind of changing color under pressure nylon composite steel tube, in it includes outer steel pipe layer, liquid crystal layer and nylon from outside to inside
Lining.
Snap in centrifuge after described steel pipe layer baste crystal layer and adjust center, by centrifugally cast mode
Produce nylon inner lining layer, combine with liquid crystal layer after the solidification of nylon inner lining layer.
Described nylon inner lining layer is to use caprolactam raw material or add potassium titanate crystalline substance in caprolactam raw material
Palpus in-situ polymerization modified MC nylon, arranges multiple pouring slot, centrifugal casting moulding.
Described liquid crystal layer material is super-branched polyesteramide.
Beneficial effects of the present invention: the composite steel tube of the present invention is at MC nylon anticorrosion, intensity height high, resistance to
Combine the outstanding wearability of potassium titanate crystal whisker and impact flexibility on the basis of temperature, not only compensate for MC nylon
Wear away fast shortcoming, meet the demand of conveying corrosion, wear medium pipeline, can preferably reduce into simultaneously
This.What liquid crystal layer was selected is modified ultra-branching polyamide-ester, when nylon tube fluid pressure changes,
In the case of naked eyes do not see nylon tube deformation, under the irradiation of ultraviolet light, pressurized position can send blueness
Fluorescence, thus reach detect tube fluid pressure, tubing, body are shielded, improve tubing
Life-span.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
A kind of changing color under pressure nylon composite steel tube, in it includes outer steel pipe layer, liquid crystal layer and nylon from outside to inside
Lining.Snap in centrifuge after described steel pipe layer baste crystal layer and adjust center, by centrifugally cast side
Formula produces nylon inner lining layer, combines with liquid crystal layer after the solidification of nylon inner lining layer.Described liquid crystal layer material
For super-branched polyesteramide.
Described nylon inner lining layer is to use caprolactam raw material or add potassium titanate in caprolactam raw material
Whisker in-situ polymeric modification MC nylon, arranges multiple pouring slot, centrifugal casting moulding.Concrete operations according to
Following steps are carried out:
(1) by the facility that feeds intake, nylon monomer is put into crucible；Open temperature control system, nylon monomer melted,
And temperature is risen to 125 DEG C, pressure is set as normal pressure；
(2) crucible starts nitrogen charging switch, by conveying pipeline, raw material inputs 2 negative pressure dewatering systems respectively
Reactor in, 1 reactor is for A material preparation, and 1 reactor is for B material preparation；Toward crucible
Interior supplementary nylon monomer so that it is melt, for lower secondary response；
(3) melted raw material (caprolactam) is carried out in negative pressure dewatering system vacuum dehydration, set de-
Coolant-temperature gage is 125 DEG C, dewatering pressure is less than 5mmHg；
(4) start auxiliary feeding system, respectively the metering of required adjuvant is put in A material, B material reactor；A
The interpolation mass ratio of material, B material is 1: 4；The matter that adjuvant is NaOH, NaOH and raw material that A material adds
Amount part ratio is 0.001～0.0014: 1；The adjuvant that B material adds is methyl diphenylene diisocyanate, puts down
Putting down and add (fatty alcohol-polyoxyethylene ether) and potassium titanate crystal whisker, potassium titanate crystal whisker with the mass parts ratio of raw material is
0.06～0.1: 1；Methyl diphenylene diisocyanate consumption is 6.256 times of NaOH weight, peregal
Consumption is with NaOH consumption.
(5) it is again started up negative pressure dewatering system and A material, the B material of addition adjuvant are carried out vacuum dehydration, if
Determine dehydration temperaturre be 125 DEG C, dewatering pressure less than 5mmHg, meanwhile, open raw material trace water content meter,
Observing and controlling feed moisture content, water content can close negative pressure dewatering system less than 300PPm；
(6) start nitrogen charging switch, the raw material in A material, B material reactor is inputted A respectively by conveying pipeline
Temporarily depositing in material, B material material storage kettle, reactor recovers normal pressure；
(7) again in crucible toward transferring raw material the reactor of negative pressure dewatering system, and be dehydrated,
For next time；According to the product weight of planned production, respectively A material, B are expected storing by metering system
Raw material in still is input in stirred tank, stirs；
(8) opening dispensing valve, fully enter in mould by the raw material in stirred tank, mold temperature controls
165 DEG C, multiple pouring slot, centrifugal casting moulding are set.
MC nylon active material tensile strength prepared by the present embodiment be 88MPa stretch modulus be 3.5GPa resist
Curved intensity is 145MPa.Product combines the high intensity of metal structure and the corrosion-resistant, resistance to of modification of nylon pipe
The advantages such as mill, and the mode applying photochromic liquid crystal detects tubing pressure, and tubing, body are risen protection
Effect, improves the tubing life-span.
Embodiment 2
A kind of changing color under pressure nylon composite steel tube, in it includes outer steel pipe layer, liquid crystal layer and nylon from outside to inside
Lining.Snap in centrifuge after described steel pipe layer baste crystal layer and adjust center, by centrifugally cast side
Formula produces nylon inner lining layer, combines with liquid crystal layer after the solidification of nylon inner lining layer.Described liquid crystal layer material
For super-branched polyesteramide.
Described nylon inner lining layer is to use caprolactam raw material or add potassium titanate in caprolactam raw material
Whisker in-situ polymeric modification MC nylon, arranges multiple pouring slot, centrifugal casting moulding.Concrete operations according to
Following steps are carried out:
(1) by the facility that feeds intake, nylon monomer is put into crucible；Open temperature control system, nylon monomer melted,
And temperature is risen to 125 DEG C, pressure is set as normal pressure；
(2) crucible starts nitrogen charging switch, by conveying pipeline, raw material inputs 2 negative pressure dewatering systems respectively
Reactor in, 1 reactor is for A material preparation, and 1 reactor is for B material preparation；Toward crucible
Interior supplementary nylon monomer so that it is melt, for lower secondary response；
(3) melted raw material (caprolactam) is carried out in negative pressure dewatering system vacuum dehydration, set de-
Coolant-temperature gage is 125 DEG C, dewatering pressure is less than 5mmHg；
(4) start auxiliary feeding system, respectively the metering of required adjuvant is put in A material, B material reactor；A
The interpolation mass ratio of material, B material is 1: 4；The matter that adjuvant is NaOH, NaOH and raw material that A material adds
Amount part ratio is 0.001～0.0014: 1；The adjuvant that B material adds is methyl diphenylene diisocyanate, puts down
Putting down and add (fatty alcohol-polyoxyethylene ether) and potassium tungstate whisker, potassium titanate crystal whisker with the mass parts ratio of raw material is
0.06～0.1: 1；Methyl diphenylene diisocyanate consumption is 6.256 times of NaOH weight, peregal
Consumption is with NaOH consumption.
(5) it is again started up negative pressure dewatering system and A material, the B material of addition adjuvant are carried out vacuum dehydration, if
Determine dehydration temperaturre be 125 DEG C, dewatering pressure less than 5mmHg, meanwhile, open raw material trace water content meter,
Observing and controlling feed moisture content, water content can close negative pressure dewatering system less than 300PPm；
(6) start nitrogen charging switch, the raw material in A material, B material reactor is inputted A respectively by conveying pipeline
Temporarily depositing in material, B material material storage kettle, reactor recovers normal pressure；
(7) again in crucible toward transferring raw material the reactor of negative pressure dewatering system, and be dehydrated,
For next time；According to the product weight of planned production, respectively A material, B are expected storing by metering system
Raw material in still is input in stirred tank, stirs；
(8) opening dispensing valve, fully enter in mould by the raw material in stirred tank, mold temperature controls
165 DEG C, multiple pouring slot, centrifugal casting moulding are set.
MC nylon active material tensile strength prepared by the present embodiment be 38MPa stretch modulus be 2.5GPa resist
Curved intensity is 77MPa.
Embodiment 3
A kind of changing color under pressure nylon composite steel tube, in it includes outer steel pipe layer, liquid crystal layer and nylon from outside to inside
Lining.Snap in centrifuge after described steel pipe layer baste crystal layer and adjust center, by centrifugally cast side
Formula produces nylon inner lining layer, combines with liquid crystal layer after the solidification of nylon inner lining layer.Described liquid crystal layer material
For super-branched polyesteramide.
Described nylon inner lining layer is to use caprolactam raw material or add potassium titanate in caprolactam raw material
Whisker in-situ polymeric modification MC nylon, arranges multiple pouring slot, centrifugal casting moulding.Concrete operations according to
Following steps are carried out:
(1) by the facility that feeds intake, nylon monomer is put into crucible；Open temperature control system, nylon monomer melted,
And temperature is risen to 125 DEG C, pressure is set as normal pressure；
(2) crucible starts nitrogen charging switch, by conveying pipeline, raw material inputs 2 negative pressure dewatering systems respectively
Reactor in, 1 reactor is for A material preparation, and 1 reactor is for B material preparation；Toward crucible
Interior supplementary nylon monomer so that it is melt, for lower secondary response；
(3) melted raw material (caprolactam) is carried out in negative pressure dewatering system vacuum dehydration, set de-
Coolant-temperature gage is 125 DEG C, dewatering pressure is less than 5mmHg；
(4) start auxiliary feeding system, respectively the metering of required adjuvant is put in A material, B material reactor；A
The interpolation mass ratio of material, B material is 1: 4；The quality that adjuvant is NaOH, NaOH and raw material that A material adds
Part ratio is 0.001～0.0014: 1；The adjuvant that B material adds is methyl diphenylene diisocyanate and metatitanic acid
Potassium whisker and Su Ji stone powder, potassium titanate crystal whisker is 0.06～0.1: 1 with the mass parts ratio of raw material；Su Jishi
Powder is 0.005: 1 with the mass parts ratio of raw material.Methane diisocyanate consumption is the 6.256 of NaOH weight
Times.
(5) it is again started up negative pressure dewatering system and A material, the B material of addition adjuvant are carried out vacuum dehydration, if
Determine dehydration temperaturre be 125 DEG C, dewatering pressure less than 5mmHg, meanwhile, open raw material trace water content meter,
Observing and controlling feed moisture content, water content can close negative pressure dewatering system less than 300PPm；
(6) start nitrogen charging switch, the raw material in A material, B material reactor is inputted A respectively by conveying pipeline
Temporarily depositing in material, B material material storage kettle, reactor recovers normal pressure；
(7) again in crucible toward transferring raw material the reactor of negative pressure dewatering system, and be dehydrated,
For next time；According to the product weight of planned production, respectively A material, B are expected storing by metering system
Raw material in still is input in stirred tank, stirs；
(8) opening dispensing valve, fully enter in mould by the raw material in stirred tank, mold temperature controls
165 DEG C, multiple pouring slot, centrifugal casting moulding are set.
MC nylon active material tensile strength prepared by the present embodiment be 98MPa stretch modulus be 4.1GPa resist
Curved intensity is 188MPa.Product combines the high intensity of metal structure and the corrosion-resistant, resistance to of modification of nylon pipe
The advantages such as mill, and the mode applying photochromic liquid crystal detects tubing pressure, and tubing, body are risen protection
Effect, improves the tubing life-span.
Embodiment 4
A kind of changing color under pressure nylon composite steel tube, in it includes outer steel pipe layer, liquid crystal layer and nylon from outside to inside
Lining.Snap in centrifuge after described steel pipe layer baste crystal layer and adjust center, by centrifugally cast side
Formula produces nylon inner lining layer, combines with liquid crystal layer after the solidification of nylon inner lining layer.Described liquid crystal layer material
For super-branched polyesteramide.
Described nylon inner lining layer is to use caprolactam raw material or add potassium titanate in caprolactam raw material
Whisker in-situ polymeric modification MC nylon, arranges multiple pouring slot, centrifugal casting moulding.Concrete operations according to
Following steps are carried out:
(1) by the facility that feeds intake, nylon monomer is put into crucible；Open temperature control system, nylon monomer melted,
And temperature is risen to 125 DEG C, pressure is set as normal pressure；
(2) crucible starts nitrogen charging switch, by conveying pipeline, raw material inputs 2 negative pressure dewatering systems respectively
Reactor in, 1 reactor is for A material preparation, and 1 reactor is for B material preparation；Toward crucible
Interior supplementary nylon monomer so that it is melt, for lower secondary response；
(3) melted raw material (caprolactam) is carried out in negative pressure dewatering system vacuum dehydration, set de-
Coolant-temperature gage is 125 DEG C, dewatering pressure is less than 5mmHg；
(4) start auxiliary feeding system, respectively the metering of required adjuvant is put in A material, B material reactor；A
The interpolation mass ratio of material, B material is 1: 4；The quality that adjuvant is NaOH, NaOH and raw material that A material adds
Part ratio is 0.001～0.0014: 1；The adjuvant that B material adds is methyl diphenylene diisocyanate, average
Adding and potassium titanate crystal whisker and daylight stone powder, potassium titanate crystal whisker is 0.01: 1 with the mass parts ratio of raw material, daylight
Stone powder is 0.005: 1 with the mass parts ratio of raw material；Peregal (fatty alcohol-polyoxyethylene ether) and potassium tungstate
Whisker, potassium titanate crystal whisker is 0.06～0.1: 1 with the mass parts ratio of raw material；Diphenylmethane diisocyanate
Ester consumption is 6.256 times of NaOH weight, and peregal consumption is with NaOH consumption.
(5) it is again started up negative pressure dewatering system and A material, the B material of addition adjuvant are carried out vacuum dehydration, if
Determine dehydration temperaturre be 125 DEG C, dewatering pressure less than 5mmHg, meanwhile, open raw material trace water content meter,
Observing and controlling feed moisture content, water content can close negative pressure dewatering system less than 300PPm；
(6) start nitrogen charging switch, the raw material in A material, B material reactor is inputted A respectively by conveying pipeline
Temporarily depositing in material, B material material storage kettle, reactor recovers normal pressure；
(7) again in crucible toward transferring raw material the reactor of negative pressure dewatering system, and be dehydrated,
For next time；According to the product weight of planned production, respectively A material, B are expected storing by metering system
Raw material in still is input in stirred tank, stirs；
(8) opening dispensing valve, fully enter in mould by the raw material in stirred tank, mold temperature controls
165 DEG C, multiple pouring slot, centrifugal casting moulding are set.
MC nylon active material tensile strength prepared by the present embodiment be 97MPa stretch modulus be 4.0GPa resist
Curved intensity is 186MPa.Product combines the high intensity of metal structure and the corrosion-resistant, resistance to of modification of nylon pipe
The advantages such as mill, and the mode applying photochromic liquid crystal detects tubing pressure, and tubing, body are risen protection
Effect, improves the tubing life-span.
Claims (4)
1. a changing color under pressure nylon composite steel tube, it is characterised in that its include from outside to inside outer steel pipe layer,
Liquid crystal layer and nylon inner lining layer.
A kind of changing color under pressure nylon composite steel tube, it is characterised in that described steel
Snap in centrifuge after tube layer baste crystal layer and adjust center, being produced in nylon by centrifugally cast mode
Lining, combines with liquid crystal layer after the solidification of nylon inner lining layer.
A kind of changing color under pressure nylon composite steel tube, it is characterised in that described Buddhist nun
Dragon inner liner is to use caprolactam raw material or add potassium titanate crystal whisker in-situ polymerization in caprolactam raw material
Modified MC nylon, arranges multiple pouring slot, centrifugal casting moulding.
A kind of changing color under pressure nylon composite steel tube, it is characterised in that described liquid
Seed layer materials is super-branched polyesteramide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617244.3A CN106015766A (en) | 2016-08-01 | 2016-08-01 | Nylon composite steel pipe changing color under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617244.3A CN106015766A (en) | 2016-08-01 | 2016-08-01 | Nylon composite steel pipe changing color under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106015766A true CN106015766A (en) | 2016-10-12 |
Family
ID=57115247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610617244.3A Pending CN106015766A (en) | 2016-08-01 | 2016-08-01 | Nylon composite steel pipe changing color under pressure |
Country Status (1)
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215741A (en) * | 1997-10-23 | 1999-05-05 | 上海市合成树脂研究所 | Potassium titanate crystal whisker reinforced polyimide composite material |
| CN2800022Y (en) * | 2003-11-25 | 2006-07-26 | 邱玉佩 | Metal and nylon compound pipe with flange |
| US20070259286A1 (en) * | 2004-03-12 | 2007-11-08 | Nathalie Leroux | Reversible Piezochromic Systems |
| CN101942193A (en) * | 2009-07-10 | 2011-01-12 | 合肥杰事杰新材料有限公司 | Whisker-enhanced nylon composite |
| CN102654218A (en) * | 2011-03-04 | 2012-09-05 | 江苏泰东科技有限公司 | Nylon pipe for zinc-plating spiral steel liner |
| CN102936409A (en) * | 2011-08-15 | 2013-02-20 | 上海金发科技发展有限公司 | Filled and reinforced nylon 6 composite material |
| CN102936411A (en) * | 2011-08-15 | 2013-02-20 | 上海金发科技发展有限公司 | Composite stuffed reinforced nylon 66 material and preparation method thereof |
| CN103214669A (en) * | 2013-04-11 | 2013-07-24 | 扬州赛尔达尼龙制造有限公司 | Method for preparing low-temperature high-toughness siloxane copolymerized MC (monomer-cast) nylon by polymerization |
| CN104228072A (en) * | 2013-06-08 | 2014-12-24 | 天津市普盛翔管材销售有限公司 | Method for manufacturing pressure color-change pipe |
| CN104235513A (en) * | 2013-06-08 | 2014-12-24 | 天津市普盛翔管材销售有限公司 | Pressure discoloring pipe |
| CN105570558A (en) * | 2015-12-25 | 2016-05-11 | 哈尔滨市南岗区鑫马建材商店 | Temperature and pressure indicating tube and manufacturing method |
-
2016
- 2016-08-01 CN CN201610617244.3A patent/CN106015766A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215741A (en) * | 1997-10-23 | 1999-05-05 | 上海市合成树脂研究所 | Potassium titanate crystal whisker reinforced polyimide composite material |
| CN2800022Y (en) * | 2003-11-25 | 2006-07-26 | 邱玉佩 | Metal and nylon compound pipe with flange |
| US20070259286A1 (en) * | 2004-03-12 | 2007-11-08 | Nathalie Leroux | Reversible Piezochromic Systems |
| CN101942193A (en) * | 2009-07-10 | 2011-01-12 | 合肥杰事杰新材料有限公司 | Whisker-enhanced nylon composite |
| CN102654218A (en) * | 2011-03-04 | 2012-09-05 | 江苏泰东科技有限公司 | Nylon pipe for zinc-plating spiral steel liner |
| CN102936409A (en) * | 2011-08-15 | 2013-02-20 | 上海金发科技发展有限公司 | Filled and reinforced nylon 6 composite material |
| CN102936411A (en) * | 2011-08-15 | 2013-02-20 | 上海金发科技发展有限公司 | Composite stuffed reinforced nylon 66 material and preparation method thereof |
| CN103214669A (en) * | 2013-04-11 | 2013-07-24 | 扬州赛尔达尼龙制造有限公司 | Method for preparing low-temperature high-toughness siloxane copolymerized MC (monomer-cast) nylon by polymerization |
| CN104228072A (en) * | 2013-06-08 | 2014-12-24 | 天津市普盛翔管材销售有限公司 | Method for manufacturing pressure color-change pipe |
| CN104235513A (en) * | 2013-06-08 | 2014-12-24 | 天津市普盛翔管材销售有限公司 | Pressure discoloring pipe |
| CN105570558A (en) * | 2015-12-25 | 2016-05-11 | 哈尔滨市南岗区鑫马建材商店 | Temperature and pressure indicating tube and manufacturing method |
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Application publication date: 20161012 |