Vinal enhancing polyphenyl thioether composite material and preparation method thereof
Technical field
The present invention relates to polymeric material field, more particularly to vinal enhancing polyphenyl thioether composite material and its
Preparation method.
Background technology
Fiberglass enhanced polyphenyl thioether composite is the macromolecular material commonly used in current industrial production, but because of its material
Material fragility is big, bending modulus is small, density is big, dielectric constant is big, in the application by a definite limitation.
The content of the invention
It is an object of the invention to provide a kind of vinal enhancing polyphenyl thioether composite material and preparation method thereof, can
To solve one or more in above-mentioned prior art problem.
According to an aspect of the invention, there is provided a kind of vinal enhancing polyphenyl thioether composite material, contains
Polyphenylene sulfide, vinal, glass fibre and auxiliary agent, auxiliary agent contain compatilizer, antioxidant, coupling agent, lubricant.
Vinal enhancing polyphenyl thioether composite material of the invention has existing high intensity, low compacted degree, mobility
Good, easy to process the features such as, and the features such as with high tenacity, high-modulus.Vinal has good mechanical performance, its
Intensity is high, modulus is high, degree of drawing is low.Can be carried vinal is added in fiberglass enhanced polyphenyl thioether composite
The bending modulus of the high composite, bending modulus and impact strength, it is also possible to improve the mobility of the composite.
The bending modulus of fiberglass enhanced polyphenyl thioether composite common at present is 13000~18000, bent
10000 times or so;The bending modulus of this vinal enhancing polyphenyl thioether composite material can be more than 20000, bent 2
Ten thousand times or so, it is adaptable to make the product for needing high temperature resistant, bearing bending for a long time, such as flabellum, the automobile of high-temperature exhaust air fan
Blast pipe etc..
In some embodiments, compatilizer is maleic anhydride stem grafting polyolefin or acrylic acid-grafted PP.Thus, it is possible to make
Activated with the end group of polyphenylene sulfide and polyvinyl alcohol both macromolecular materials, do not produce repulsive interaction, formed one it is whole
Body.
In some embodiments, antioxidant is hydroxy phenyl acrylate, hydroxyphenylmethyl acrylate, alkylidene pair
Atmosphere or thiobis atmosphere.Thus, it is possible to hinder oxidation reaction of the macromolecular material in hot procedure, macromolecular material is prevented
Degradation.
In some embodiments, coupling agent is γ-aminopropyl triethoxysilane, propanethiol trimethyl TMOS
Or ethyoxyl triethoxysilane.Thus, it is possible to be surface-treated to glass fibre, vinal, increase it with height
The cohesive force of molecular material.
In some embodiments, lubricant is stearic acid, Tissuemat E, fatty acid mono-amide, acetic acid or metallic soap.By
This, can reduce the kinematic viscosity of melt polymer material state, be easy to processing.
In some embodiments, in terms of parts by weight, wherein polyphenylene sulfide 40~50, vinal 20~30,
Glass fibre 20~40.The existing high intensity of material that advantage is formed into, low compacted degree, good fluidity, it is easy to process the features such as, have
The features such as high tenacity, low-density, high-modulus.
In some embodiments, in terms of parts by weight, wherein compatilizer 1, antioxidant 0.3, coupling agent 0.3, lubricant
0.4.Advantage is to increase the adhesion of different materials, increase intensity, convenient processing.
It is including as follows present invention also offers the preparation method that a kind of vinal strengthens polyphenyl thioether composite material
Step:(1) by polyphenylene sulfide, vinal and glass fibre, and compatilizer, antioxidant, coupling agent and lubricant are mixed
Close, obtain compound;(2) extruder is added mixture into, strip composite is extruded.
In some embodiments, vinal strengthens the preparation method of polyphenyl thioether composite material, wherein also wrapping
Include the strip composite cooling and dicing that step (3) will obtain in step (2) and be made plastic pellet.Thus, it is easy to material to store, with
And process again.
Vinal strengthens the preparation method of polyphenyl thioether composite material in some embodiments, wherein in step
(1) by polyphenylene sulfide, and auxiliary agent adds glass fibre and vinal passes through after high-speed stirred mixes dispersion
Stirring at low speed obtains compound.By polyphenylene sulfide, and auxiliary agent can be with by (more than 3000 revs/min) stirring mixing dispersions at a high speed
Make stirring efficiency higher, (less than 200 revs/min) stirrings of low speed can be avoided again to add glass fibre and vinal
Glass fibre forms cotton wool and is difficult scattered situation in stirring.
Specific embodiment
The invention will be further described by the following examples, but protection domain is not restricted by the embodiments.
Embodiment 1:
First, polyphenylene sulfide and compatilizer, antioxidant, coupling agent, lubricant are passed through into high-speed stirred under normal temperature and pressure
Mixing is uniformly dispersed, and mixing speed is about more than 3000 revs/min, and mixing time is about 3 minutes.Again by glass fibre and poly- second
Enol fiber is added, and is uniformly dispersed by stirring at low speed, and mixing speed is about less than 200 revs/min, obtains compound.At this
In embodiment, in terms of parts by weight, polyphenylene sulfide 40, vinal 30, glass fibre 40, auxiliary agent 2.With parts by weight
Meter, compatilizer 1, antioxidant 0.3, coupling agent 0.3, lubricant 0.4.
Then, in adding mixture into double screw extruder, double screw extruder set process conditions as temperature 300~
350 DEG C, 1100 revs/min of screw speed.
Finally, the discharging opening in double screw extruder sets cold rinse bank, and the strip composite that will be extruded is in cold rinse bank
Tie rod pelletizing, is cut into 5~6mm vinal enhancing polyphenyl thioether composite material particles long, is easy to store and transports.It is cold
Water temperature in tank is less than 40 DEG C.
After measured, the notch impact strength of vinal enhancing polyphenyl thioether composite material manufactured in the present embodiment is
9.8 kilojoules/square metre, melt index (MI) is 0.9 gram/10 seconds, and bending modulus is 23500, and tensile strength is 190 MPas, and bending is strong
It is 200 MPas to spend, and heat distortion temperature is 260 degrees Celsius, and density is 1.72 grams/cc.
Mixing time can extend or shorten according to actual conditions.
In the present embodiment, compatilizer is maleic anhydride grafted polyethylene.In other embodiments, compatilizer can also be
The maleic anhydride stem grafting polyolefin class material such as maleic anhydride inoculated polypropylene or maleic anhydride grafting polybutene, can also be propylene
Sour graft polypropylene (acrylic acid-grafted PP) etc..
In the present embodiment, antioxidant is hydroxy phenyl acrylate.In other embodiments, antioxidant can also be hydroxyl
Base benzyl acrylic ester, alkylidene bisphenols or thiobisphenol etc..
In the present embodiment, coupling agent is γ-aminopropyl triethoxysilane.In other embodiments, coupling agent also may be used
Think propanethiol trimethyl TMOS or ethyoxyl triethoxysilane etc..
In the present embodiment, lubricant is stearic acid.In other embodiments, lubricant can also be Tissuemat E, fat
Fat acid monoamides, acetic acid, metallic soap etc..
Table 1 is embodiment 1, and prepares vinal enhancing in other 15 methods same as Example 1
In the embodiment of polyphenyl thioether composite material, the parts by weight of polyphenylene sulfide, glass fibre, vinal and auxiliary agent, with
And it is the notch impact strength of prepared vinal enhancing polyphenyl thioether composite material, bending modulus, tensile strength, curved
Qu Qiangdu, heat distortion temperature and density.
In these embodiments, in terms of parts by weight, wherein polyphenylene sulfide 40~50, vinal 20~30, glass
Glass fiber 20~40, auxiliary agent 1~3.
From data in table 1, the notch shock of vinal enhancing polyphenyl thioether composite material of the invention is strong
Degree, bending modulus and bending strength are improved.
The bending modulus of fiberglass enhanced polyphenyl thioether composite common at present is 13000~18000, bent
10000 times or so;The bending modulus of this vinal enhancing polyphenyl thioether composite material can be more than 20000, bent 2
Ten thousand times or so, it is adaptable to make the product for needing high temperature resistant, bearing bending for a long time, such as flabellum, the automobile of high-temperature exhaust air fan
Blast pipe etc..
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
Enclose.