CN108219450A - A kind of high intensity, high-modulus, lower shrinkage plating nylon material and preparation method thereof - Google Patents
A kind of high intensity, high-modulus, lower shrinkage plating nylon material and preparation method thereof Download PDFInfo
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- CN108219450A CN108219450A CN201810173055.0A CN201810173055A CN108219450A CN 108219450 A CN108219450 A CN 108219450A CN 201810173055 A CN201810173055 A CN 201810173055A CN 108219450 A CN108219450 A CN 108219450A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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Abstract
The invention discloses a kind of high intensity, high-modulus, lower shrinkage plating nylon material and preparation method thereof, and material compositing formula is made of the following component of weight percent：Nylon resin 23~75%；PA1335 5~10%；Glass fibre 0~35%；Filling mineral 20~30%；Lubricant 0~1%；Antioxidant 0~1%.Beneficial effects of the present invention are：1st, process provides a kind of plating nylon, and it is in that weakly alkaline filling mineral imparting nylon material is plating resistance, and mechanical property is prominent, electroplating effect is excellent to employ a kind of special size.2nd, plating system mechanical strength obtained by this method is high, overcomes the problem of traditional fiberglass reinforced system cannot be electroplated, the design of integrated structure can play the purpose of loss of weight in the parts alternative metals such as door handle, mobile phone frame.
Description
Technical field
The present invention relates to a kind of plating nylon material, specially a kind of high intensity, high-modulus, lower shrinkage plating nylon material
And preparation method thereof
Background technology
With the development of automobile industry, automotive light weight technology is a developing direction of current automobile industry, " mould Dai Gang "
It is one critically important direction of automobile lightweight, some plastics such as nylon, polypropylene, ABS obtain increasingly on automobile
More applications, plastics are promoted the factor for mainly having following several respects on a large scale on automobile：1. density is low, it can be achieved that vapour
Vehicle lightweight, the density of usual plastics are concentrated mainly on 0.9~1.5g/cm3, the density of fibre reinforced plastics will not generally surpass
Cross 2g/cm3, and the density of aluminium is 2.7g/cm3, steel density be 7.6g/cm3, brass density be 8.4g/cm3, 2. plastics into
Type is easy, can be processed into various parts；3. plastic products can absorb a large amount of energy when being hit, when encountering vehicle
Misfortune can play cushioning effect when bursty states, protect the safety of passenger；4. plastics have excellent chemical stability, acid,
It is better than metal in terms of the resistance to corrosions such as alkali, salt.Based on it is above-mentioned excellent the characteristics of, plastics can more and more be used with alternative metals
In auto parts and components.
Nylon is that current five large-engineering plastics dosage is maximum due to being widely used with excellent mechanical property
A material, compared to materials such as PP, ABS, nylon excellent in mechanical performance, particularly glass fiber reinforced nylon material power performance are excellent
It is different, some parts alternative metals materials more demanding to the mechanical property of materials are can be applied to, have been obtained on automobile wide
The main selection of general application, especially engine periphery.
Due to some parts in order to obtain good appearance, there are some parts to carry out electroplating processes, be electroplated
Material generally selects the materials such as ABS and PC/ABS, and electroplating effect is good, since the mechanical property of ABS, PC/ABS material is relatively low, material
The performance of material cannot meet certain requirements that higher part is removed to material mechanical performance, but the materials such as nylon, PP due to
With centainly crystallinity is obtained, dimensionally stable habit is poor, and surface is not easy to be etched, and is generally not easy to be plated, and realizes
The materials such as nylon obtain plating performance and have very important significance for expanding the application of plated material.
Invention content
A kind of high intensity, high-modulus, lower shrinkage plating nylon material and preparation method thereof, to solve the above-mentioned of the prior art
Problem.
The technical issues of present invention is proposed for solution, the technical solution that uses for：
A kind of high intensity, high-modulus, lower shrinkage plating nylon material and preparation method thereof, including following percentage by weight
Than the raw material of meter：
The nylon resin is PA66, PA6, PA46, PA6T, PA9T, PA56, PA610, PA1010, PA612, PA12
One or more of Deng.
The glass fibre is a kind of 7 μm, chopped length 3mm of diameter, and surface is coated by silane coupling agent and nylon
Material has the alkali-free glass fibre of fine compatibility.
The PA1335 is a kind of amorphous nylon material, preferable with the compatibility of nylon, it is therefore an objective to increase and reduce nylon
Crystallinity, increase the dimensional stability of nylon.
The filling mineral is that a kind of size is smaller, and specially treated is passed through on surface, there is the silicon of fine compatibility with nylon
Lime stone, by wollastonite in weakly alkaline feature, easily corrosion generates pit on surface in acid solution, can so as to assign nylon
The performance of plating.
The lubricant is a kind of rheology adjusting control agent, by changing the hydrogen bond between nylon molecules, improves the rheology of melt
Behavior, so as to improve the apparent property of injecting products.
The antioxidant is compounded by phosphite ester and hindered phenol antioxygen.
Above-mentioned high intensity, high-modulus, lower shrinkage plating nylon material and preparation method thereof, include the following steps：
(1) dried nylon resin, PA1335, lubricant, antioxidant are weighed by formula rate and passes through homogenizer
It is uniformly mixed, it is spare.
(2) it is spare after glass fibre is weighed up according to proportioning；
(3) it is spare after filling mineral is weighed up according to proportioning；
(3) above-mentioned uniformly mixed raw material by the main spout of double screw extruder is added in, glass is led into rear end side
Feeding adds in (close to head), and filling mineral is added in by front end side feeding, by works such as melting extrusion, granulation, drying process
The composite material is obtained after sequence.
Compared with prior art, advantage of the invention is that by the additions of PA1335 amorphous nylons, Buddhist nun can be reduced
The big crystallinity of imperial material increases the dimensional stability of nylon material, and the reduction of crystallinity is obtained for improving nylon material
To apparent property, surface floating fiber is reduced；And it is added in material prescription in weakly alkaline filler, alkalescent assigns nylon material
Material is easily etched in acid solution, assigns nylon material electrodepositable performance, and improve Buddhist nun by the addition of rheology adjusting control agent
The processing performance of imperial material, ensureing material, surface is still without floating fibre under conditions of high glass fiber content, so as to ensure fiberglass reinforced
The plating performance of nylon material.
Specific embodiment
In order to make technical problems, technical solutions and advantageous effects to be solved by the present invention clearer, below in conjunction with reality
Example is applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used for explaining this hair
It is bright, it is not intended to limit the present invention.
The embodiment of the present invention uses following materials：
PA6-M2500, Jiangsu Rui Meifu Industrial Co., Ltd.s；
P1335, Shanghai Ying Gu Chemical Co., Ltd.s
Glass fibre：, 7 μm of E7CS10-03-568H diameters, Chinese megalith limited company
Filling mineral：MD1250WC10012, it is commercially available
Talcum powder：CZ-5,5000 mesh are commercially available：
Wollastonite：HJ2000-03, it is commercially available；
Lubricant：1507 Bruggolite companies of Germany of TP-P；
Antioxidant：Hinered phenols antioxidant 1010, CIBA companies of Switzerland；
Antioxidant：Three [2.4- di-tert-butyl-phenyls] phosphite esters 168, it is commercially available
Properties of product test method：
Tensile property：By ISO527-2 methods, batten size：170*10*4mm, test speed 5mm/min.
Bending property：By ISO178-1 methods, batten size：80*10*4mm, test speed 2mm/min.
Notched impact properties：By 180 methods of ISO, batten size：80*10*4mm.
Shrinking percentage：Size of sample：150*100*3.2mm, model injection complete be placed in the environment in laboratory (23 DEG C,
50%RH) after for 24 hours, test 150mm length obtains test size variation, shrinkage from mold dimensions：
Embodiment 1：
PA6-M2500 6.35kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh MD1250WC10012 3kg；
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and MD1250WC10012 is added by the front end side feeding of double screw extruder (close to main spout)
Enter double screw extruder, each section of control temperature (being exported from charge door to head) of double screw extruder is 180 DEG C, 210 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed is 320r/
Min, the material strip of extrusion is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Embodiment 2：
PA6-M2500 5.35kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh MD1250WC10012 4kg；
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and MD1250WC10012 is added by the front end side feeding of double screw extruder (close to main spout)
Enter double screw extruder, each section of control temperature (being exported from charge door to head) of double screw extruder is 180 DEG C, 210 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed is 320r/
Min, the material strip of extrusion is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Embodiment 3：
PA6-M2500 4.35kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh MD1250WC10012 3kg；
Glass fibre 2kg is weighed,
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and MD1250WC10012 is added by the front end side feeding of double screw extruder (close to main spout)
Enter double screw extruder, fiberglass fiber is added in into twin-screw extrusion by the rear end side feeding of double screw extruder (close to head)
Machine, each section of double screw extruder control temperature (being exported from charge door to head) is 180 DEG C, 210 DEG C, 225 DEG C, 225 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed be 320r/min, the material of extrusion
Item is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Embodiment 4：
PA6-M2500 4.35kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh MD1250WC10012 2.5kg；
Glass fibre 2.5kg is weighed,
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and MD1250WC10012 is added by the front end side feeding of double screw extruder (close to main spout)
Enter double screw extruder, fiberglass fiber is added in into twin-screw extrusion by the rear end side feeding of double screw extruder (close to head)
Machine, each section of double screw extruder control temperature (being exported from charge door to head) is 180 DEG C, 210 DEG C, 225 DEG C, 225 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed be 320r/min, the material of extrusion
Item is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Embodiment 5：
PA6-M2500 3.85kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh MD1250WC10012 2.5kg；
Glass fibre 3kg is weighed,
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and MD1250WC10012 is added by the front end side feeding of double screw extruder (close to main spout)
Enter double screw extruder, fiberglass fiber is added in into twin-screw extrusion by the rear end side feeding of double screw extruder (close to head)
Machine, each section of double screw extruder control temperature (being exported from charge door to head) is 180 DEG C, 210 DEG C, 225 DEG C, 225 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed be 320r/min, the material of extrusion
Item is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Embodiment 6：
PA6-M2500 3.85kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh MD1250WC10012 2kg；
Glass fibre 3.5kg is weighed,
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and MD1250WC10012 is added by the front end side feeding of double screw extruder (close to main spout)
Enter double screw extruder, fiberglass fiber is added in into twin-screw extrusion by the rear end side feeding of double screw extruder (close to head)
Machine, each section of double screw extruder control temperature (being exported from charge door to head) is 180 DEG C, 210 DEG C, 225 DEG C, 225 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed be 320r/min, the material of extrusion
Item is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Comparative example 1：
PA6-M2500 5.35kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh talcum powder 4kg；
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and talcum powder is added in double spiral shells (close to main spout) by the front end side feeding of double screw extruder
Bar extruder, each section of double screw extruder control temperature (being exported from charge door to head) is 180 DEG C, 210 DEG C, 225 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed is 320r/min, is squeezed
The material strip gone out is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Comparative example 2：
PA6-M2500 5.35kg are weighed, PA1335 0.5kg dry 4h at 100 DEG C, and antioxidant 1010 and 168 is respectively
12.5g, lubricant 100g are uniformly mixed in homogenizer, obtain resin compound；
It is spare to weigh wollastonite 4kg；
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and wollastonite is added in double spiral shells (close to main spout) by the front end side feeding of double screw extruder
Bar extruder, each section of double screw extruder control temperature (being exported from charge door to head) is 180 DEG C, 210 DEG C, 225 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed is 320r/min, is squeezed
The material strip gone out is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Comparative example 3：
It weighs PA6-M2500 4.35kg and 4h, antioxidant 1010 and 168 each 12.5g, lubricant is dried at 100 DEG C
100g is uniformly mixed in homogenizer, obtains resin compound；
It is spare to weigh MD1250WC10012 2kg；
Glass fibre 3.5kg is weighed,
Above-mentioned uniformly mixed resin compound is passed through into double screw extruder (screw diameter 35mm, draw ratio L/D
=40) main spout adds in, and MD1250WC10012 is added by the front end side feeding of double screw extruder (close to main spout)
Enter double screw extruder, fiberglass fiber is added in into twin-screw extrusion by the rear end side feeding of double screw extruder (close to head)
Machine, each section of double screw extruder control temperature (being exported from charge door to head) is 180 DEG C, 210 DEG C, 225 DEG C, 225 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, double screw extruder rotating speed be 320r/min, the material of extrusion
Item is through water-carrying groove cools down, pelletizing obtains product after forced air drying agent drying.
Above-mentioned material is molded into standard batten after 120 DEG C of dry 5h in air dry oven at a temperature of 250 DEG C.
By the mechanical property batten of injection formed in laboratory standard environment (23 DEG C, 50%RH), it is laggard to place progress status adjustment for 24 hours
Row test, more than test result are shown in Table 1.
Table 1：The performance test results.
Can be seen that the addition of PA1335 from data shown in table can effectively reduce shrinking percentage, and apparent mass
It getting a promotion, shrinking percentage reduces, the dimensional stability of material increases, apparent mass raising is conducive to plating performance, (embodiment 6,
Comparative example 3).MD1250WC10012 since its unique size and acid-base property are conducive to assign nylon plating performance, wollastonite and
Talcum powder cannot have electroplating effect (embodiment 2, comparative example 1, comparative example 2), and the addition of glass fiber content can improve the strong of material
Degree and modulus, being conducive to plating increases the application of nylon material, has important meaning for plating nylon material alternative metals.
Claims (7)
1. nylon material is electroplated in a kind of high intensity, high-modulus, lower shrinkage, it is characterised in that：Including it is following by weight percentage
Raw material：
2. nylon material is electroplated in a kind of high intensity according to claim 1, high-modulus, lower shrinkage, it is characterised in that：It is described
Nylon resin be one kind or several in PA66, PA6, PA46, PA6T, PA9T, PA56, PA610, PA1010, PA612, PA12
Kind mixing.
3. nylon material is electroplated in a kind of high intensity according to claim 1, high-modulus, lower shrinkage, it is characterised in that：It is described
Glass fibre be a kind of 7 μm, chopped length 3mm of diameter, surface is coated by silane coupling agent has fine phase with nylon material
The alkali-free glass fibre of capacitive.
4. nylon material is electroplated in a kind of high intensity according to claim 1, high-modulus, lower shrinkage, it is characterised in that：It is described
PA1335 be a kind of amorphous nylon material.
5. nylon material is electroplated in a kind of high intensity according to claim 1, high-modulus, lower shrinkage, it is characterised in that：It is described
Filling mineral be that a kind of size is smaller, specially treated is passed through on surface, there is the wollastonite of fine compatibility with nylon.
6. nylon material is electroplated in a kind of high intensity according to claim 1, high-modulus, lower shrinkage, it is characterised in that：It is described
Antioxidant be to be compounded by phosphite ester and hindered phenol antioxygen.
7. the preparation method of one of the arbitrary high intensity of claim 1-6, high-modulus, lower shrinkage plating nylon material, special
Sign is：Include the following steps：
(1) dried nylon resin, PA1335, lubricant, antioxidant is weighed by formula rate to mix by homogenizer
Uniformly, it is spare.
(2) it is spare after glass fibre is weighed up according to proportioning；
(3) it is spare after filling mineral is weighed up according to proportioning；
(3) above-mentioned uniformly mixed raw material by the main spout of double screw extruder is added in, glass is led into rear end side feeding
(close to head) is added in, filling mineral is added in by front end side feeding, after the processes such as melting extrusion, granulation, drying process
Obtain the composite material.
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| CN110527284A (en) * | 2019-09-03 | 2019-12-03 | 王良仁 | A kind of automobile plating nylon plastic material and preparation method |
| CN111073150A (en) * | 2019-12-31 | 2020-04-28 | 重庆普利特新材料有限公司 | Dimensionally stable electroplatable polypropylene composite material and preparation method thereof |
| CN112920593A (en) * | 2019-12-05 | 2021-06-08 | 苏州荣昌复合材料有限公司 | High-strength low-shrinkage reinforced nylon and preparation method thereof |
| CN113185832A (en) * | 2021-04-29 | 2021-07-30 | 青岛东一岳新材料有限公司 | Special glass fiber reinforced PA6 material for automobile handles and processing technology |
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