CN108929537A - A kind of modification of nylon composition and preparation method thereof - Google Patents
A kind of modification of nylon composition and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of modification of nylon composition and preparation method thereof, is related to technical field of polymer materials.Modification of nylon composition of the present invention is prepared from the following raw materials：Nylon 6, nylon66 fiber, POE grafted maleic anhydride, polytetrafluoroethylmodified modified glass fibre, odor adsorption master batch, silicon carbide, lubricant, antioxidant.Modification of nylon composition of the present invention has the characteristics that low smell, wearability are good, nylon composite made from mating reaction between raw material of the present invention has significant raising in terms of wear-resisting property, and excellent mechanical property is maintained, and the moulding processability of material is unaffected.
Description
Technical field
The present invention relates to technical field of polymer materials, and in particular to a kind of modification of nylon composition and preparation method thereof.
Background technique
Nylon is a computer MSR Information system development under the outstanding scientist's Tomas Carothers (Carothers) in the U.S. and its leader
It out, is the first synthetic fibers occurred in the world.Nylon is a kind of saying of Fypro (polyamide fibre), is generally divided into
Nylon 6, nylon66 fiber.6 appearance of nylon is milky to faint yellow, has toughness, shock resistance, there is higher mechanical strength and heat-resisting
Property, shock strength is preferable, and fusing point is higher, and moulding processability is good, and water imbibition is big, saturated water absorption 11% or so, it is meltable in
In sulfated phenolic or formic acid, brittle temperature is the degree of minus 20 degrees -30.
Although nylon has many excellent performances, in the more demanding field of some pairs of smells, wear-resisting properties, nylon
Application will receive very big limitation.Therefore it needs to further decrease its smell, coefficient of friction and wear rate, is answered to expand it
Use field.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of modification of nylon composition and preparation method thereof, solve existing
Nylon smell is big in technology, the technical issues of wearing no resistance.
In order to achieve the above object, technical solution of the present invention is achieved by the following technical programs：
A kind of modification of nylon composition, the modification of nylon composition are made of raw material from the following weight：54-90 parts of Buddhist nuns
Dragon 6,1-5 parts of nylon66 fibers, 1-5 parts of POE grafted maleic anhydrides, 5-45 parts of polytetrafluoroethylmodified modified glass fibres, 1-5 parts of smells are inhaled
Attached master batch, 0.1-0.2 part silicon carbide, 0.2-1 parts of lubricants, 0.1-1 parts of antioxidant.
Preferably, 6 melting means of nylon is 5-8g/10min, and the nylon66 fiber melting means is 8-10g/10min.
Preferably, the odor adsorption master batch is by nylon 6, hydrophobicity diatomite, hydrophobic active charcoal, needle-shaped zeolite molecules
Sieve, zinc ricinate, nano silica, calcium stearate, melamine are uniformly mixed, then squeeze out and make in double screw extruder
Grain forms.
Preferably, the polytetrafluoroethylmodified modified glass fibre is poly- four after polytetrafluoroethyldispersion dispersion impregnation
Fluoride modified glass fibre.
Preferably, the molecular weight of the polytetrafluoroethylene (PTFE) is 1,200,000, crystallinity 90%.
Preferably, the polytetrafluoroethyldispersion dispersion is that the polyflon that average grain diameter is 0.1-0.2 μm suspends
The colloidal solution formed in liquid water, and the viscosity of colloidal solution is 0.05Pas, concentration 60wt%.
Preferably, the lubricant is at least one of silicone powder, white oil, silicone oil, paraffin, stearic acid, zinc stearate.
Preferably, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and Asia
Tricresyl phosphate (2,4- di-tert-butyl-phenyl) ester mixes, and the weight part ratio of the two is 2：3-1：1.
A kind of preparation method of modification of nylon composition, includes the following steps：
S1, it will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, take out drying and at 290-310 DEG C
It bakes and banks up with earth, be sintered, polytetrafluoroethylmodified modified glass fibre is made；
S2, each raw material for weighing parts by weight, by nylon 6, nylon66 fiber, POE grafted maleic anhydride, odor adsorption master batch,
Silicon carbide, lubricant and antioxidant pour into blender, stir evenly and are placed in double screw extruder, and polytetrafluoroethylene (PTFE) is changed
Property glass fibre from the glass fiber opening of double screw extruder be added, be granulated after melting extrusion.
Preferably, area's temperature of double screw extruder described in step S2 is 180-190 DEG C, two area's temperature are 180-190
DEG C, three area's temperature be 190-200 DEG C, four area's temperature are 210-220 DEG C, five area's temperature are 230-250 DEG C, six area's temperature are 245-
250℃；Twin-screw engine speed is 500rpm.
The present invention provides a kind of modification of nylon composition and preparation method thereof, and advantage is compared with prior art：
1. modification of nylon composition of the present invention has the characteristics that low smell, wearability are good, 6 melting means of nylon is 5- in raw material
8g/10min, nylon66 fiber melting means are 8-10g/10min, and the mobility of 6 melt of nylon can be adjusted after being added, guarantees processing
In the process, nylon 6 is plasticized uniformly, and melting mixing is smooth, and the polytetrafluoroethylmodified modified glass fibre of raw material is using extraordinary polytetrafluoroethyl-ne
Alkene dispersion liquid carries out impregnation, polytetrafluoroethylene (PTFE) 1,200,000 to glass fibre, and crystallinity 90% is kept away using this powder particle
Exempt from glass fiber impregnated dipping in the process not exclusively, the situation of disconnected fibre occurs in fiber impregnation inefficient, fiber, greatly improves
Glass and makes nylon composite obtained have significant raising in terms of wear-resisting property, and protect in the dispersibility of nylon matrix
Excellent mechanical property is held；
2. the dosage of raw material silicon carbide of the present invention is down to 0.1-0.2 parts, the silicon carbide of low dosage had both avoided a large amount of uses
Caused by modification of nylon composition properties decline, in turn ensure the synergistic that silicon carbide plays modification of nylon composition wear-resisting property
Effect, improves the wear-resisting property of modification of nylon composition；
3. odor adsorption master batch of the present invention can reduce the small molecule content in composition, make total volatile organism TVOC
It significantly reduces, and while guarantee composition low odor characteristics, the molding processibility of every physical and mechanical property, material
It can be unaffected；
4. when as gas absorption master batch, being improved using nylon as matrix in the preparation of odor adsorption master batch of the present invention
The compatibility of itself and fiber, nylon, ensure that dispersibility of the master batch in composition system；
5. using area's temperature of double screw extruder for 180-190 in modification of nylon preparation method of composition of the present invention
DEG C, two area's temperature be 180-190 DEG C, three area's temperature are 190-200 DEG C, four area's temperature are 210-220 DEG C, five area's temperature are 230-
250 DEG C, six area's temperature be 245-250 DEG C；Twin-screw engine speed is 500rpm, and such processing temperature, engine speed to change
Property nylon composite blocked at the charging that process is not in, and have feeding saturation, plasticizing uniformly, not overflow
Advantage.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference to the embodiment of the present invention pair
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Super polytetrafluoroethylmodified modified glass fibre and odor adsorption master batch are prepared by following method in embodiment：
The impregnation of glass fibre：It will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, then
It takes out and dries and baked and banked up with earth at 300 DEG C, be sintered to obtain polytetrafluoroethylmodified modified glass fibre；Polytetrafluoroethyldispersion dispersion is average grain diameter
It is suspended in the colloidal solution formed in liquid water for 0.1-0.2 μm of polyflon, the viscosity of colloidal solution is
0.05Pas, concentration 60wt%.
The preparation of odor adsorption master batch：100 parts of nylon, 5 parts of hydrophobicity diatomite, 10 parts of hydrophobic active charcoals, 5 parts it is needle-shaped
Zeolite molecular sieve, 10 parts of zinc ricinates, 5 parts of nano silicas, 1 part of calcium stearate, 5 parts of melamines, row are uniformly mixed,
Then extruding pelletization obtains odor adsorption master batch in double screw extruder.
Polytetrafluoroethylene (PTFE) number-average molecular weight is 1,200,000, crystallinity 90%.
6 melting means of nylon is 5-8g/10min；
Nylon66 fiber melting means is 8-10g/10min.
Embodiment 1：
The present embodiment modification of nylon composition is made of raw material from the following weight：70 parts of nylon, 6,1 parts of nylon66 fibers, 1 part
POE grafted maleic anhydride, 25 parts of polytetrafluoroethylmodified modified glass fibres, 3 parts of odor adsorption master batches, 0.2 part of silicon carbide, 1 part of silicon
Ketone powder, 0.2 part of antioxidant, 1098,0.2 parts of irgasfos 168s；
The preparation method of the present embodiment modification of nylon composition, includes the following steps：
S1, it will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, take out drying and dried at 300 DEG C
Training, sintering, are made polytetrafluoroethylmodified modified glass fibre；
S2, each raw material for weighing parts by weight, by nylon 6, nylon66 fiber, POE grafted maleic anhydride, odor adsorption master batch,
Silicon carbide, lubricant and antioxidant pour into blender, stir evenly and are placed in double screw extruder, and polytetrafluoroethylene (PTFE) is changed
Property glass fibre from the glass fiber opening of double screw extruder be added, be granulated after melting extrusion.
Wherein, area's temperature of double screw extruder is 180 DEG C, two area's temperature are 180 DEG C, three area's temperature are 190 DEG C, four
Area's temperature is 210 DEG C, five area's temperature are 230 DEG C, six area's temperature are 245 DEG C；Twin-screw engine speed is 500rpm.
Embodiment 2：
The present embodiment modification of nylon composition is made of raw material from the following weight：54 parts of nylon, 6,5 parts of nylon66 fibers, 5 parts
POE grafted maleic anhydride, 30 parts of polytetrafluoroethylmodified modified glass fibres, 1 part of odor adsorption master batch, 0.2 part of silicon carbide, 0.2 part
Silicone powder, 0.1 part of antioxidant, 1098,0.1 parts of irgasfos 168s；
The preparation method of the present embodiment modification of nylon composition, includes the following steps：
S1, it will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, take out drying and dried at 300 DEG C
Training, sintering, are made polytetrafluoroethylmodified modified glass fibre；
S2, each raw material for weighing parts by weight, by nylon 6, nylon66 fiber, POE grafted maleic anhydride, odor adsorption master batch,
Silicon carbide, lubricant and antioxidant pour into blender, stir evenly and are placed in double screw extruder, and polytetrafluoroethylene (PTFE) is changed
Property glass fibre from the glass fiber opening of double screw extruder be added, be granulated after melting extrusion.
Wherein, area's temperature of double screw extruder is 190 DEG C, two area's temperature are 190 DEG C, three area's temperature are 200 DEG C, four
Area's temperature is 220 DEG C, five area's temperature are 250 DEG C, six area's temperature are 250 DEG C；Twin-screw engine speed is 500rpm.
Embodiment 3：
The present embodiment modification of nylon composition is made of raw material from the following weight：90 parts of nylon, 6,2 parts of nylon66 fibers, 2 parts
POE grafted maleic anhydride, 20 parts of polytetrafluoroethylmodified modified glass fibres, 5 parts of odor adsorption master batches, 0.1 part of silicon carbide, 0.2 part
Silicone powder, 0.2 part of antioxidant, 1098,0.3 parts of irgasfos 168s；
The preparation method of the present embodiment modification of nylon composition, includes the following steps：
S1, it will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, take out drying and dried at 300 DEG C
Training, sintering, are made polytetrafluoroethylmodified modified glass fibre；
S2, each raw material for weighing parts by weight, by nylon 6, nylon66 fiber, POE grafted maleic anhydride, odor adsorption master batch,
Silicon carbide, lubricant and antioxidant pour into blender, stir evenly and are placed in double screw extruder, and polytetrafluoroethylene (PTFE) is changed
Property glass fibre from the glass fiber opening of double screw extruder be added, be granulated after melting extrusion.
Wherein, area's temperature of double screw extruder is 180 DEG C, two area's temperature are 180 DEG C, three area's temperature are 190 DEG C, four
Area's temperature is 210 DEG C, five area's temperature are 230 DEG C, six area's temperature are 245 DEG C；Twin-screw engine speed is 500rpm.
Embodiment 4：
The present embodiment modification of nylon composition is made of raw material from the following weight：60 parts of nylon, 6,3 parts of nylon66 fibers, 3 parts
POE grafted maleic anhydride, 5 parts of polytetrafluoroethylmodified modified glass fibres, 2 parts of odor adsorption master batches, 0.1 part of silicon carbide, 0.4 part of profit
Lubrication prescription, 0.1 part of antioxidant；Wherein lubricant is white oil, silicone oil, paraffin, zinc stearate mix；Antioxidant be four [β-(3,
5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and phosphorous acid three (2,4- di-tert-butyl-phenyl) ester be according to parts by weight
Than being 2：3；It mixes, 6 melting means of nylon is 5-8g/10min, and nylon66 fiber melting means is 8-10g/10min；
The preparation method of the present embodiment modification of nylon composition, includes the following steps：
S1, it will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, take out drying and dried at 290 DEG C
Training, sintering, are made polytetrafluoroethylmodified modified glass fibre；
S2, each raw material for weighing parts by weight, by nylon 6, nylon66 fiber, POE grafted maleic anhydride, odor adsorption master batch,
Silicon carbide, lubricant and antioxidant pour into blender, stir evenly and are placed in double screw extruder, and polytetrafluoroethylene (PTFE) is changed
Property glass fibre from the glass fiber opening of double screw extruder be added, be granulated after melting extrusion.
Wherein, area's temperature of double screw extruder is 180 DEG C, two area's temperature are 180 DEG C, three area's temperature are 190 DEG C, four
Area's temperature is 210 DEG C, five area's temperature are 230 DEG C, six area's temperature are 245 DEG C；Twin-screw engine speed is 500rpm.
Embodiment 5：
The present embodiment modification of nylon composition is made of raw material from the following weight：80 parts of nylon, 6,4 parts of nylon66 fibers, 4 parts
POE grafted maleic anhydride, 45 parts of polytetrafluoroethylmodified modified glass fibres, 4 parts of odor adsorption master batches, 0.15 part of silicon carbide, 0.7 part
Lubricant, 1 part of antioxidant；Wherein lubricant is silicone powder, silicone oil, paraffin, two layers of stearic acid mixing；Antioxidant be four [β-(3,
5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and phosphorous acid three (2,4- di-tert-butyl-phenyl) ester be according to parts by weight
It is 1：1；It mixes, 6 melting means of nylon is 5-8g/10min, and nylon66 fiber melting means is 8-10g/10min；
The preparation method of the present embodiment modification of nylon composition, includes the following steps：
S1, it will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, take out drying and dried at 310 DEG C
Training, sintering, are made polytetrafluoroethylmodified modified glass fibre；
S2, each raw material for weighing parts by weight, by nylon 6, nylon66 fiber, POE grafted maleic anhydride, odor adsorption master batch,
Silicon carbide, lubricant and antioxidant pour into blender, stir evenly and are placed in double screw extruder, and polytetrafluoroethylene (PTFE) is changed
Property glass fibre from the glass fiber opening of double screw extruder be added, be granulated after melting extrusion.
Wherein, area's temperature of double screw extruder is 180 DEG C, two area's temperature are 180 DEG C, three area's temperature are 190 DEG C, four
Area's temperature is 210 DEG C, five area's temperature are 230 DEG C, six area's temperature are 245 DEG C；Twin-screw engine speed is 500rpm.
Comparative example：
Common activated carbon of sorbent, the poly- molybdenum disulfide of common anti-wear agent, by 70 parts of Buddhist nuns are added in this comparative example raw material
Dragon 6,3 parts, 5 parts molybdenum disulfide of active carbon, 1 part of silicone powder, 0.2 part of antioxidant, 1098,0.2 parts of irgasfos 168s pour into high-speed stirring
It mixes in machine, high-speed stirred, mixes to adding twin-screw extrude after uniformly, 25 parts of glass fibre is added from glass fiber opening, warp
It is granulated after melting extrusion.
Wherein area's temperature of double screw extruder is 180 DEG C, two area's temperature are 180 DEG C, three area's temperature are 190 DEG C, four
Area's temperature is 210 DEG C, five area's temperature are 230 DEG C, six area's temperature are 245 DEG C；Twin-screw engine speed is 500rpm.
To nylon composite prepared by above-described embodiment 1-3 and comparative example 1, detect respectively its mechanical property, oder levels,
TVOC and wear-resisting property.Wherein mechanical property is detected using ASTM standard, and oder levels, TVOC are carried out using GMW standard
Detection, wear-resisting property are measured according to standard GB/T 5478-2008, and physical data see the table below 1.
The different properties of sample test results of table 1
As can be seen from Table 1, addition odor adsorption master batch can be obviously improved the smell and emission characteristics of material, make
Low smell, high abrasion-resistance nylon composition TVOC are lower than 40ugC/g.In addition, the abrasion index of products of the present invention is extremely low, it is in
Excellent wear-resisting property is revealed.The glass fibre of institute's impregnation of the present invention significantly improves glass in the dispersion of nylon matrix
Property, make low smell, it is low distribute, high abrasion-resistance nylon composition have anti-wear agent additive amount it is few, wear-resisting protrusion, mechanical property significantly changes
Kind advantage.
In conclusion the present invention carries out impregnation to glass fibre with extraordinary polytetrafluoroethyldispersion dispersion, greatly change
It has been apt to glass in the dispersibility of nylon matrix, and so that nylon obtained is had significant raising in terms of wear-resisting property, and protect
Excellent mechanical property is held；
Polytetrafluoroethylene (PTFE) 1,200,000 in the present invention, crystallinity 90% just can solve and soaked in fiber using this powder particle
The fiber impregnation inefficient occurred during stain, not exclusively, there are the technical problems such as disconnected fibre to dipping in fiber；
6 melting means of nylon is 5-8g/10min；Nylon66 fiber melting means is 8-10g/10min, and it is molten that nylon can be adjusted after being added
The mobility of body guarantees that in process uniformly, melting mixing is smooth for nylon plasticizing；
The dosage of silicon nitride of the present invention is 0.1-0.2 parts, is avoided largely tight using composition properties caused by silicon nitride
Decline again；Silicon nitride plays very important synergistic effect to composition wear-resisting property；
It is improved when as gas absorption master batch using nylon as matrix in the preparation of odor adsorption master batch of the present invention
The compatibility of itself and fiber, nylon ensure that dispersibility of the master batch in composition system.
The present invention reduces the small molecule content in composition using extraordinary odor adsorption master batch, makes total volatile organism
TVOC is significantly reduced；And while guarantee composition low odor characteristics, the molding of every physical and mechanical property, material adds
Work performance is unaffected；
One area's temperature of double screw extruder of the present invention is 180-190 DEG C, two area's temperature are 180-190 DEG C, three area's temperature
For 190-200 DEG C, four area's temperature be 210-220 DEG C, five area's temperature are 230-250 DEG C, six area's temperature are 245-250 DEG C；Double spiral shells
Bar engine speed is 500rpm, and this processing temperature, engine speed are able to solve in process, is blocked up at the charging of appearance
Plug, feeding is unsaturated, and plasticizing is uneven, the technical problems such as overflow.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although ginseng
According to previous embodiment, invention is explained in detail, those skilled in the art should understand that：It still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of modification of nylon composition, which is characterized in that the modification of nylon composition is made of raw material from the following weight：
54-90 parts of nylon 6,1-5 parts of nylon66 fibers, 1-5 parts of POE grafted maleic anhydrides, 5-45 parts of polytetrafluoroethylmodified modified glass fibres, 1-
5 parts of odor adsorption master batches, 0.1-0.2 parts of silicon carbide, 0.2-1 parts of lubricants, 0.1-1 parts of antioxidant.
2. modification of nylon composition according to claim 1, it is characterised in that：6 melting means of nylon is 5-8 g/
10min, the nylon66 fiber melting means are 8-10 g/10min.
3. modification of nylon composition according to claim 1, it is characterised in that：The odor adsorption master batch by nylon 6, dredge
Aqueous diatomite, hydrophobic active charcoal, needle-shaped zeolite molecular sieve, zinc ricinate, nano silica, calcium stearate, trimerization
Cyanamide is uniformly mixed, then extruding pelletization forms in double screw extruder.
4. modification of nylon composition according to claim 1, it is characterised in that：The polytetrafluoroethylmodified modified glass fibre
For the polytetrafluoroethylmodified modified glass fibre after polytetrafluoroethyldispersion dispersion impregnation.
5. modification of nylon composition according to claim 4, it is characterised in that：The molecular weight of the polytetrafluoroethylene (PTFE) is
1200000, crystallinity 90%.
6. modification of nylon composition according to claim 4, it is characterised in that：The polytetrafluoroethyldispersion dispersion is average
Partial size is that 0.1-0.2 μm of polyflon is suspended in the colloidal solution formed in liquid water, and the viscosity of colloidal solution
For 0.05Pas, concentration 60wt%.
7. modification of nylon composition according to claim 1, it is characterised in that：The lubricant is silicone powder, white oil, silicon
At least one of oil, paraffin, stearic acid, zinc stearate.
8. modification of nylon composition according to claim 1, it is characterised in that：The antioxidant is four [β-（3,5- bis- uncles
Butyl -4- hydroxy phenyl）Propionic acid] ester mixes, and the two for pentaerythritol ester and phosphorous acid three (2,4- di-tert-butyl-phenyl)
Weight part ratio be 2：3-1：1.
9. a kind of preparation method of the modification of nylon composition as described in any in claim 1-8, which is characterized in that including following
Step：
S1, it will be immersed in polytetrafluoroethyldispersion dispersion after glass fibre cleaning, drying, take out drying and dried at 290-310 DEG C
Training, sintering, are made polytetrafluoroethylmodified modified glass fibre；
S2, each raw material for weighing parts by weight, by nylon 6, nylon66 fiber, POE grafted maleic anhydride, odor adsorption master batch, carbonization
Silicon, lubricant and antioxidant pour into blender, stir evenly and are placed in double screw extruder, by polytetrafluoroethylmodified modified glass
Glass fiber is added from the glass fiber opening of double screw extruder, is granulated after melting extrusion.
10. preparation method according to claim 9, it is characterised in that：One area's temperature of double screw extruder described in step S2
Degree is 180-190 DEG C, two area's temperature are 180-190 DEG C, three area's temperature are 190-200 DEG C, four area's temperature are 210-220 DEG C, five
Area's temperature is 230-250 DEG C, six area's temperature are 245-250 DEG C；Twin-screw engine speed is 500rpm.
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| CN110724379A (en) * | 2019-10-30 | 2020-01-24 | 南京聚隆科技股份有限公司 | Flame-retardant nylon material for electronics and electrics and preparation method thereof |
| CN111888840A (en) * | 2020-07-09 | 2020-11-06 | 南京捷纳思新材料有限公司 | Efficient air filter medium and preparation method thereof |
| CN115537016A (en) * | 2022-10-17 | 2022-12-30 | 浙江及时宇新材料有限公司 | Modified nylon 11 composition and preparation method thereof |
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| CN101837212A (en) * | 2010-05-26 | 2010-09-22 | 宋朋泽 | Polyphenylene sulfide glass fiber composite filter material and method for preparing same |
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| CN110724379A (en) * | 2019-10-30 | 2020-01-24 | 南京聚隆科技股份有限公司 | Flame-retardant nylon material for electronics and electrics and preparation method thereof |
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| CN115537016A (en) * | 2022-10-17 | 2022-12-30 | 浙江及时宇新材料有限公司 | Modified nylon 11 composition and preparation method thereof |
| CN115537016B (en) * | 2022-10-17 | 2023-07-28 | 浙江及时宇新材料有限公司 | Modified nylon 11 composition and preparation method thereof |
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Application publication date: 20181204 |