CN109825067A - A kind of high flowing low shrinkage fibre enhancing high-temperature nylon material and preparation method thereof can be used for complicated product - Google Patents
A kind of high flowing low shrinkage fibre enhancing high-temperature nylon material and preparation method thereof can be used for complicated product Download PDFInfo
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- CN109825067A CN109825067A CN201910137699.9A CN201910137699A CN109825067A CN 109825067 A CN109825067 A CN 109825067A CN 201910137699 A CN201910137699 A CN 201910137699A CN 109825067 A CN109825067 A CN 109825067A
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- temperature nylon
- low shrinkage
- complicated product
- fibre enhancing
- flowing low
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Abstract
The invention discloses a kind of high flowing low shrinkage fibre enhancing high-temperature nylon materials and preparation method thereof that can be used for complicated product, composition is calculated by weight as: 40~70 parts of PPA (high-temperature nylon), 10~20 parts of PA6I (amorphous nylon), 20~40 parts of flat glass, 0.5 part of flow ability modifying agent, 0.3~0.5 part of colorant, 0.5 part of antioxidant.The present invention passes through modified to high-temperature nylon, so that it is provided simultaneously with high flowing and to the good cladding ability of fiber, after being enhanced using flat fiber it, material can sufficiently flow in complicated type chamber, and the glass fiber content of end and tail end is almost the same before a mold, guarantees that the shrinking percentage of material is consistent.Meanwhile the composite material has high intensity, good apparent, the characteristic of low warpage.
Description
Technical field
The present invention relates to chopsticks materials, and in particular to a kind of for making the high flowing low shrinkage fibre enhancing of complicated product
High-temperature nylon plastic.
Background technique
The high-temperature resistant and high intensity of high-temperature nylon material make it be widely used in high-temperature fields such as engine peripheries, so
And some components, because its structure is complicated, high-temperature nylon material mobility is poor, and material is easy short shot.Meanwhile glass and tree
The binding force of rouge is insufficient, causes the content of glass in the composite material of mold tail end lower than die nose, causes with part
The problems such as shrinking percentage of different parts is inconsistent, generates off-dimension.
The mobility that material is improved by nylon flow ability modifying agent guarantees that it, in injection molding, can be full of entire type chamber.Together
When, apparent, flatness can be improved and reduce shrinking percentage by introducing PA6I.Flat glass is bigger than the specific surface area of common glass,
It is more preferable with the associativity of resin, it is easier to be coated forward, the glass fiber content and mold of mold tail end by resin in melt flows
Front end is almost the same, guarantees that materials rate has uniform shrinking percentage in entire part.
Summary of the invention
The present invention proposes a kind of novel high flowing low shrinkage fibre increasing that can be used for complicated product regarding to the issue above
Strong plastics are substrate using high-temperature nylon, form by glass fiber reinforcement have high flowing, lower shrinkage, good apparent spy
Point.
The purpose of the present invention is what is realized by technical solution in detail below:
A kind of high flowing low shrinkage fibre enhancing high-temperature nylon material can be used for complicated product, composition is by weight
Number is calculated as: 40~70 parts of PPA (high-temperature nylon), 10~20 parts of PA6I (amorphous nylon), 20~40 parts of flat glass, flow modifier
0.5 part of agent, 0.3~0.5 part of colorant, 0.5 part of antioxidant.
The specific ingredient of the major ingredient PPA (high-temperature nylon) is PA6T and PA66 block copolymer, and wherein PA6T content exists
50% or so.The specific ingredient of PA6I is isophthalic ester hexamethylene diamine.
Flat glass is long fibre and/or chopped strand, the flat chopped strand of preferably 3~7mm in the auxiliary material；
Preferably, the flat glass abnormity rate is 4:1；
Preferably, the glass fibre is handled by silane coupling agent；
Preferably, the general formula of the silane coupling agent is Y (CH2) nSiX3, in formula: n be 0~3, Y be selected from vinyl,
Amino, epoxy group or methacryloxy, X are chloro, methoxyl group, ethyoxyl or acetoxyl group；
Preferably, the silane coupling agent is selected from Y- chloropropyl triethoxysilane, Y- (2,3- the third oxygen of epoxy) propyl
One of trimethoxy silicon or Y- (methacryloxypropyl) propyltrimethoxy silane or at least two mixture.
The flow ability modifying agent is Dendritic Nylon lubricant.
The organic or inorganic toner that the colorant is resistance to 300 DEG C.
The antioxidant is resistance to 300 DEG C of Hinered phenols antioxidant and/or phosphite ester antioxidant.
The above-mentioned high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product, comprising the following steps:
(1) in parts by mass, by 60~80 parts of PPA and PA6I resin, 0.5 part of flow ability modifying agent, colorant 0.3~0.5
Part, 0.5 part of antioxidant premixing uniformly obtains mixture；
(2) by the mixture, 20~40 parts of glass fibre are put into extruder, carry out melt blending and extrusion is made
The high-temperature nylon plastic for can be used for a kind of high flowing low shrinkage fibre enhancing that can be used for complicated product is made in grain.
The present invention makes it be provided simultaneously with high flowing and to the good cladding ability of fiber, make by being modified to high-temperature nylon
After being enhanced with flat fiber it, material can sufficiently flow in complicated type chamber, and hold the glass with tail end before a mold
Content is almost the same, guarantees that the shrinking percentage of material is consistent.Meanwhile the composite material has high intensity, good apparent, the spy of low warpage
Property.
Specific embodiment
It is clear to be more clear technical solution of the present invention, below the present invention is described further, any pair of sheet
The technical characteristic of inventive technique scheme carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within the scope of the present invention.
Embodiment one
A kind of plastics of the novel high flowing low shrinkage fibre enhancing that can be used for complicated product, composition is by weight
Number is calculated as: 60 parts of PPA, 40 parts of circular glass fiber, 0.3~0.5 part of colorant, 0.5 part of antioxidant；
Embodiment two
A kind of plastics of the novel high flowing low shrinkage fibre enhancing that can be used for complicated product, composition is by weight
Number is calculated as: 60 parts of PPA, 40 parts of round simple glass fiber, and 0.5 part of flow ability modifying agent, 0.3~0.5 part of colorant, antioxidant
0.5 part；
Embodiment three
A kind of plastics of the novel high flowing low shrinkage fibre enhancing that can be used for complicated product, composition is by weight
Number is calculated as: 50 parts of PPA, 10 parts of PA6I, and 40 parts of circular glass fiber, 0.5 part of flow ability modifying agent, 0.3~0.5 part of colorant,
0.5 part of antioxidant；
Example IV
A kind of plastics of the novel high flowing low shrinkage fibre enhancing that can be used for complicated product, composition is by weight
Number is calculated as: 50 parts of PPA, 10 parts of PA6I, and 40 parts of flat glass fiber, 0.5 part of flow ability modifying agent, 0.3~0.5 part of colorant,
0.5 part of antioxidant；
Injection molding test is carried out to the plastic pellet being prepared using aforesaid way, testing result is as follows:
One Fundamental Physical Properties of table
In a preferred embodiment of the present invention four it can be seen from above-mentioned detection, described one kind is novel to be can be used for again
The plastics of the high flowing low shrinkage fibre enhancing of miscellaneous product have smooth apparent, and high fluidity, mechanical strength is protected
Card, it is most important that, the glass fiber content of exemplar entirety is almost the same, ensure that shrinking percentage is identical, and it is multiple to meet engine periphery etc.
The requirement of miscellaneous product.
Claims (10)
1. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product, it is characterised in that: composition at
Part is calculated by weight as: 40~70 parts of PPA (high-temperature nylon), 10~20 parts of PA6I (amorphous nylon), flat glass 20~40
Part, 0.5 part of flow ability modifying agent, 0.3~0.5 part of colorant, 0.5 part of antioxidant.
2. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 1
Material, the specific ingredient of the major ingredient PPA (high-temperature nylon) is PA6T and PA66 block copolymer.
3. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 1
Material, it is characterised in that: the flat glass is the flat chopped strand of 3~7mm.
4. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 3
Material, it is characterised in that: the flat glass abnormity rate is 4:1.
5. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 1
Material, it is characterised in that: the glass fibre is handled by silane coupling agent；The general formula of the silane coupling agent is Y (CH2)
NSiX3, in formula: n is that 0~3, Y is selected from vinyl, amino, epoxy group or methacryloxy, and X is chloro, methoxyl group, second
Oxygroup or acetoxyl group.
6. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 5
Material, it is characterised in that: the silane coupling agent is selected from Y- chloropropyl triethoxysilane, Y- (2,3- the third oxygen of epoxy) propyl three
One of methoxyl group silicon or Y- (methacryloxypropyl) propyltrimethoxy silane or at least two mixture.
7. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 1
Material, it is characterised in that: the flow ability modifying agent is Dendritic Nylon lubricant.
8. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 1
Material, it is characterised in that: the organic or inorganic toner that the colorant is resistance to 300 DEG C.
9. a kind of high flowing low shrinkage fibre enhancing high-temperature nylon material that can be used for complicated product according to claim 1
Material, it is characterised in that: the antioxidant is resistance to 300 DEG C of Hinered phenols antioxidant and/or phosphite ester antioxidant.
10. can be used for the high flowing low shrinkage fibre enhancing high-temperature nylon material of complicated product described in claim 1-9 is one of any
Material, it is characterised in that: the following steps are included:
(1) in parts by mass, by 60~80 parts of PPA and PA6I resin, 0.5 part of flow ability modifying agent, 0.3~0.5 part of colorant, resist
0.5 part of oxygen agent premixing uniformly obtains mixture；
(2) by the mixture, 20~40 parts of glass fibre are put into extruder, carry out melt blending and extruding pelletization, system
It must be used to can be used for a kind of high-temperature nylon plastic of high flowing low shrinkage fibre enhancing that can be used for complicated product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910137699.9A CN109825067A (en) | 2019-02-25 | 2019-02-25 | A kind of high flowing low shrinkage fibre enhancing high-temperature nylon material and preparation method thereof can be used for complicated product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137699.9A CN109825067A (en) | 2019-02-25 | 2019-02-25 | A kind of high flowing low shrinkage fibre enhancing high-temperature nylon material and preparation method thereof can be used for complicated product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112480660A (en) * | 2020-12-11 | 2021-03-12 | 上海金发科技发展有限公司 | High-strength high-weather-resistance good-appearance PA6 composition and preparation method thereof |
| CN113354943A (en) * | 2021-05-14 | 2021-09-07 | 金旸（厦门）新材料科技有限公司 | Wear-resistant high-temperature nylon material for electronic connector |
| CN113402879A (en) * | 2021-06-08 | 2021-09-17 | 浙江艾米家居用品有限公司 | Preparation process and production device for mildew-proof alloy chopsticks made of high polymer materials |
| CN114058178A (en) * | 2021-12-17 | 2022-02-18 | 南京聚隆科技股份有限公司 | Nylon plastic for gun rod of high-pressure cleaning machine and preparation method thereof |
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| CN112480660A (en) * | 2020-12-11 | 2021-03-12 | 上海金发科技发展有限公司 | High-strength high-weather-resistance good-appearance PA6 composition and preparation method thereof |
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| CN113402879A (en) * | 2021-06-08 | 2021-09-17 | 浙江艾米家居用品有限公司 | Preparation process and production device for mildew-proof alloy chopsticks made of high polymer materials |
| CN114058178A (en) * | 2021-12-17 | 2022-02-18 | 南京聚隆科技股份有限公司 | Nylon plastic for gun rod of high-pressure cleaning machine and preparation method thereof |
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