CN114507442A - PES filter material return material and nylon 66 alloy and preparation method thereof - Google Patents
PES filter material return material and nylon 66 alloy and preparation method thereof Download PDFInfo
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- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
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Abstract
The invention discloses a PES filter material return and nylon 66 alloy and a preparation method thereof, wherein the alloy comprises PES filter material return, nylon 66, a first compatilizer, a second compatilizer, a moisture absorption inhibitor, an antioxidant and a lubricant, and the PES filter material return and nylon 66 alloy comprises the following components in parts by mass: 30-65 parts of PES filter material return, 0-65 parts of nylon 6630-65 parts, 3-4 parts of first compatilizer and second compatilizer respectively, 0.1-0.3 part of moisture absorption inhibitor, 0.2-0.4 part of antioxidant and 0.6-0.8 part of lubricant. The invention has better mechanical property, excellent dimensional stability and lower water absorption, not only reduces the cost of PES engineering plastics, but also makes up for the defects of high water absorption of nylon 66 and poor dimensional stability of products, and also eliminates environmental pollution.
Description
Technical Field
The invention relates to the field of engineering plastics, in particular to a PES filter material return material and nylon 66 alloy and a preparation method thereof.
Background
Polyethersulfone (PES) is an amorphous polymer having a molecular structure containing sulfone groups (-S02-). Has high strength, high temperature resistance, low moisture absorption, flame retardance, chemical resistance, excellent size stability and electric performance. The method is widely applied to the fields of electronic appliances, airplanes, automobiles, medical treatment and food industry. The modified water absorption material is also applied to filter materials for filtering blood and refining medicines. The method is used for producing a large amount of waste products in the manufacture of filter materials, and forms 'solid waste' to pollute the environment. The recycled pellets were found to have mechanical strength comparable to general-purpose engineering plastics and still maintain the excellent quality of extremely small "molding shrinkage".
The nylon 66 as one of five common engineering plastics has excellent physical and mechanical properties, electrical properties and self-lubricating properties. The method is widely applied to the industrial fields of automobiles, machinery, medicine and the like. The demand is second only to Polycarbonate (PC) in five general-purpose engineering plastics. However, it has the greatest disadvantages of high water absorption, large molding shrinkage and poor dimensional stability. Are limited in the manufacture of many precision parts.
If PES filter material feed back and nylon 66 can be made into alloy, the respective advantages are fully exerted, the PES filter material feed back has wider application prospect, and the environment of a PES filter material production plant is improved. The PES and the nylon have great difference in molecular structure level and are incompatible systems. There are only reports on this alloy, Chengchong et al [ journal of east China university of technology 23, 4 th 431, 1997], studied PES/PA alloy with a self-made epoxy type compatibilizer, but with limited improvement in mechanical properties, and the PES used is a pure resin without moisture absorption modification.
Disclosure of Invention
The invention aims to solve the technical problem of providing the alloy of the PES filter material return material and the nylon 66 and the preparation method thereof, which have better mechanical property, excellent dimensional stability and lower water absorption, not only reduce the cost of PES engineering plastics, but also make up the defects of high water absorption of the nylon 66 and poor dimensional stability of products, and also eliminate environmental pollution; an effective compatilizer is provided, the interface compatibility of the PES filter material return material and the nylon 66 is improved, the PES filter material return material and the nylon 66 special engineering plastic alloy are prepared by a reactive extrusion technology, and the cost is low; the reactive extrusion preparation method is simple to operate, has high production benefit and is very suitable for industrial production.
The PES filter material return material and nylon 66 alloy and the preparation method thereof are realized by the following technical scheme: the composite material comprises PES filter material feed back, nylon 66, a first compatilizer, a second compatilizer, a moisture absorption inhibitor, an antioxidant and a lubricant.
As a preferred technical scheme, the method comprises the following steps of: 30-65 parts of PES filter material return, 0-65 parts of nylon 6630-65 parts, 3-4 parts of first compatilizer and second compatilizer respectively, 0.1-0.3 part of moisture absorption inhibitor, 0.2-0.4 part of antioxidant and 0.6-0.8 part of lubricant.
As a preferred technical scheme, the first compatilizer is general plastic grafted glycidyl methacrylate, and the second compatilizer is general plastic grafted maleic anhydride; the antioxidant is N, N' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylenediamine and tris (2, 4-di-tert-butylphenyl) phosphite in a mass ratio of 1: 1; the lubricant is silicone powder with the molecular weight of 70 ten thousand to 75 ten thousand; the moisture absorption inhibitor is polydimethylsiloxane; the nylon 66 is nylon 66 pure resin with relative viscosity of 2.4-3.0.
As the preferred technical scheme, the PES filter material feed back is taken from a filter material production plant.
As a preferred technical scheme, the lubricant brand of 70 ten thousand of 75 ten thousand of silicone powder with molecular weight is GM-100; the moisture absorption inhibitor of the polydimethylsiloxane is 301-350.
A PES filter material return material and nylon 66 alloy preparation method, PES filter material return material, nylon 66, first compatilizer and second compatilizer are dried for 4 hours under the condition of 120 ℃, and then are mixed with moisture absorption inhibitor, antioxidant and lubricant in a high-speed mixer uniformly; and finally, turning into a product with the length-diameter ratio of 48: and (3) melting, extruding, granulating and drying the double-screw extruder of the 1 to obtain an alloy finished product.
As a preferred technical scheme, the temperature of the nine zones of the extruder is as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃ of the head temperature.
Preferably, the extruder has a vacuum of 0.08 MPa.
The invention has the beneficial effects that: the invention has better mechanical property, excellent dimensional stability and lower water absorption, not only reduces the cost of PES engineering plastics, but also makes up for the defects of high water absorption of nylon 66 and poor dimensional stability of products, and also eliminates environmental pollution.
Detailed Description
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 30 parts of PES filter material return material, 6662.6 parts of nylon, 3 parts of each of a first compatilizer and a second compatilizer, 0.2 part of moisture absorption inhibitor, 0.4 part of antioxidant and 0.8 part of lubricant; the parts are parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.8, the first compatilizer is EPDM grafted glycidyl methacrylate, the second compatilizer is EPDM grafted maleic anhydride, the moisture absorption inhibitor is polydimethylsiloxane, and the antioxidant is (N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylene diamine and tris (2, 4-di-tert-butylphenyl) phosphite) in the mass ratio of 1: 1, and the lubricant is silicone powder (brand: GM-100) with the weight-average molecular weight of 70-75 ten thousand.
A preparation method of PES filter material feed back and PA66 alloy comprises the following steps:
drying the PES filter material return material, PA66 and the compatilizer for 4 hours at 110 ℃, then mixing the PES filter material return material, the PA66 and the compatilizer with the moisture absorption inhibitor, the antioxidant and the lubricant in advance in a high-speed mixer uniformly, transferring the mixture into a feed hopper of a double-screw extruder, melting the mixture by the double-screw extruder, cutting the mixture into granules after extrusion, and drying the granules to prepare a PES filter material return material and nylon 66 alloy material; wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08 MPa.
Example 2
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 40 parts of PES filter material return material, 6650.5 parts of nylon, 4 parts of first compatilizer, 4 parts of second compatilizer, 0.3 part of moisture absorption inhibitor, 0.4 part of antioxidant and 0.8 part of lubricant; the parts are parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.8, the first compatilizer is POE grafted glycidyl methacrylate, the second compatilizer is POE grafted maleic anhydride, the moisture absorbent is polydimethylsiloxane, the antioxidant is a mixture of (N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine and tris (2, 4-di-tert-butylphenyl) phosphite) in a mass ratio of 1: 1, and the lubricant is silicone powder with weight-average molecular weight of 70-75 ten thousand (trade mark: GM-100).
A preparation method of PES filter material feed back and PA66 alloy comprises the following steps:
drying the PES filter material feed back, PA66 and a compatilizer for 4 hours at 110 ℃, then uniformly mixing the PES filter material feed back, the PA66 and the compatilizer with a moisture absorption inhibitor, an antioxidant and a lubricant in advance in a high-speed mixer, transferring the mixture into a feed hopper of a double-screw extruder, melting the mixture by the double-screw extruder, cutting the mixture into granules after extrusion, and drying the granules to prepare a PES filter material feed back and nylon 66 alloy material; wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08 MPa.
Example 3
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 50 parts of PES filter material return, 6643 parts of nylon, 3 parts of first compatilizer, 3 parts of second compatilizer, 0.1 part of moisture absorbent, 0.3 part of antioxidant and 0.6 part of lubricant; the parts are parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.6, the first compatilizer is POE grafted glycidyl methacrylate, the second compatilizer is POE grafted maleic anhydride, the moisture absorbent is polydimethylsiloxane, and the antioxidant is N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine and tris (2, 4-di-tert-butylphenyl) phosphite) in the mass ratio of 1: 1, and the lubricant is silicone powder (brand: GM-100) with the weight-average molecular weight of 70-75 ten thousand.
A preparation method of PES filter material feed back and PA66 alloy comprises the following steps:
drying the PES filter material return material, PA66 and the compatilizer for 4 hours at 110 ℃, then mixing the PES filter material return material, the PA66 and the compatilizer with the moisture absorption inhibitor, the antioxidant and the lubricant in advance in a high-speed mixer uniformly, transferring the mixture into a feed hopper of a double-screw extruder, melting the mixture by the double-screw extruder, cutting the mixture into granules after extrusion, and drying the granules to prepare the PES filter material return material and nylon 66 alloy material. Wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08 MPa.
Example 4
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 60 parts of PES filter material return material, 6630.5 parts of nylon, 4 parts of first compatilizer, 4 parts of second compatilizer, 0.3 part of moisture absorbent, 0.4 part of antioxidant and 0.8 part of lubricant, wherein the parts are in parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.6, a first compatilizer is PP grafted glycidyl methacrylate, a second compatilizer is PP grafted maleic anhydride, a moisture absorbent is polydimethylsiloxane, an antioxidant is a mixture of (N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylene diamine and tris (2, 4-di-tert-butylphenyl) phosphite) in a mass ratio of 1: 1, and a lubricant is silicone powder with weight-average molecular weight of 70-75 ten thousand (trade mark: GM-100).
The preparation method of the PES filter material feed back and PA66 alloy comprises the following steps:
drying the PES filter material return material, PA66 and the compatilizer for 4 hours at 110 ℃, then mixing the PES filter material return material, the PA66 and the compatilizer with the moisture absorption inhibitor, the antioxidant and the lubricant in advance in a high-speed mixer uniformly, transferring the mixture into a feed hopper of a double-screw extruder, melting the mixture by the double-screw extruder, cutting the mixture into granules after extrusion, and drying the granules to prepare a PES filter material return material and nylon 66 alloy material; wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08 MPa.
Example 5
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 55 parts of PES filter material feed back, 6630 part of nylon, 5 parts of first compatilizer, 5 parts of second compatilizer, 0.3 part of moisture absorbent, 0.4 part of antioxidant and 0.8 part of lubricant, wherein the parts are in parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.8, the first compatilizer is POE grafted glycidyl methacrylate, the second compatilizer is POE grafted maleic anhydride, the moisture absorbent is polydimethylsiloxane, the antioxidant is a mixture of (N, N PDM, -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine and tris (2, 4-di-tert-butylphenyl) phosphite) in a mass ratio of 1: 1, and the lubricant is silicone powder with weight-average molecular weight of 70-75 ten thousand (trade mark: GM-100).
A preparation method of PES filter material feed back and PA66 alloy comprises the following steps:
drying the PES filter material return material, PA66 and the compatilizer for 4 hours at 110 ℃, then mixing the PES filter material return material, the PA66 and the compatilizer with the moisture absorption inhibitor, the antioxidant and the lubricant in advance in a high-speed mixer uniformly, transferring the mixture into a feed hopper of a double-screw extruder, melting the mixture by the double-screw extruder, cutting the mixture into granules after extrusion, and drying the granules to prepare the PES filter material return material and nylon 66 alloy material. Wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08 MPa.
Example 6
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 60.5 parts of PES filter material feed back, 6630 part of nylon, 8 parts of first compatilizer, 0.3 part of moisture absorbent, 0.4 part of antioxidant and 0.8 part of lubricant, wherein the parts are in parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.6, the first compatilizer is POE grafted glycidyl methacrylate, the moisture absorbent is polydimethylsiloxane, and the antioxidant is (N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine and tris (2, 4-di-tert-butylphenyl) phosphite) in the mass ratio of 1: 1, and the lubricant is silicone powder (brand: GM-100) with the weight-average molecular weight of 70-75 ten thousand.
The preparation method of the PES filter material feed back and PA66 alloy comprises the following steps:
drying the PES filter material return material, PA66 and the compatilizer for 4 hours at 110 ℃, then mixing the PES filter material return material, the PA66 and the compatilizer with the moisture absorption inhibitor, the antioxidant and the lubricant in advance in a high-speed mixer uniformly, transferring the mixture into a feed hopper of a double-screw extruder, melting the mixture by the double-screw extruder, cutting the mixture into granules after extrusion, and drying the granules to prepare the PES filter material return material and nylon 66 alloy material. Wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08 MPa.
Example 7
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 30 parts of PES filter material feed back, 6660.5 parts of nylon, 8 parts of second compatilizer, 0.3 part of moisture absorbent, 0.4 part of antioxidant and 0.8 part of lubricant, wherein the parts are in parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.6, the second compatilizer is POE grafted maleic anhydride, the moisture absorbent is polydimethylsiloxane, the antioxidant is a mixture of (N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine and tris (2, 4-di-tert-butylphenyl) phosphite) in a mass ratio of 1: 1, and the lubricant is silicone powder with a weight-average molecular weight of 70-75 ten thousand (trade mark: GM-100).
The preparation method of the PES filter material feed back and PA66 alloy comprises the following steps:
drying the PES filter material return material, PA66 and the compatilizer for 4 hours at 110 ℃, then mixing the PES filter material return material, the PA66 and the compatilizer with the moisture absorption inhibitor, the antioxidant and the lubricant in advance in a high-speed mixer uniformly, transferring the mixture into a feed hopper of a double-screw extruder, melting the mixture by the double-screw extruder, cutting the mixture into granules after extrusion, and drying the granules to prepare the PES filter material return material and nylon 66 alloy material. Wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08 MPa.
Comparative example 1
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 32 parts of PES filter material return material, 6666.8 parts of nylon, 0.4 part of antioxidant and 0.8 part of lubricant, wherein the parts are in parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.8, and the antioxidant is (N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine and tris (2, 4-di-tert-butylphenyl) phosphite) with the mass ratio of 1: 1, and the lubricant is silicone powder (brand: GM-100) with the weight-average molecular weight of 70-75 ten thousand.
A preparation method of PES filter material feed back and PA66 alloy comprises the following steps:
and (3) drying the PES filter material feed back and PA66 at 110 ℃ for 4 hours, then mixing the PES filter material feed back and the PA66 with an antioxidant and a lubricant in a high-speed mixer uniformly in advance, transferring the mixture into a hopper of a double-screw extruder, melting the mixture by the double-screw extruder, and granulating and drying the mixture after extrusion to prepare the PES filter material feed back and nylon 66 alloy material. Wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08M.
Comparative example 2
As shown in table 1, the raw materials of the PES filter material feed back and the PA66 alloy include: 66.8 parts of PES filter material feed back, 6632 parts of nylon, 0.4 part of antioxidant, and 0.8 part of lubricant, wherein the parts are in parts by mass.
PA66 is PA66 pure resin with relative viscosity of 2.8, an antioxidant is a mixture of N, N PDM' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine and tris (2, 4-di-tert-butylphenyl) phosphite) with the mass ratio of 1: 1, and a lubricant is silicone powder with the weight-average molecular weight of 70-75 ten thousand (trade mark: GM-100).
A preparation method of PES filter material feed back and PA66 alloy comprises the following steps:
and (3) drying the PES filter material feed back and PA66 at 110 ℃ for 4 hours, then mixing the PES filter material feed back and the PA66 with an antioxidant and a lubricant in a high-speed mixer uniformly in advance, transferring the mixture into a hopper of a double-screw extruder, melting the mixture by the double-screw extruder, and granulating and drying the mixture after extrusion to prepare the PES filter material feed back and nylon 66 alloy material. Wherein, the processing temperatures of the first zone to the ninth zone of the double-screw extruder are respectively as follows: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃, the extruder head temperature is 280 ℃, and the vacuum degree is-0.08M.
TABLE 1 summary of the examples and comparative examples
TABLE 2 summary of the performance tests of the various tests
The use of the selected compatibilizer and moisture absorption inhibitor reduced the saturated moisture absorption to 0.2% and the molding shrinkage to 0.06%.
Polyether sulfone filter material detection report
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (8)
1. The alloy of PES filter material feed back and nylon 66 is characterized in that: the composite material comprises PES filter material feed back, nylon 66, a first compatilizer, a second compatilizer, a moisture absorption inhibitor, an antioxidant and a lubricant.
2. The PES filter material return and nylon 66 alloy of claim 1, wherein the alloy comprises, in parts by mass: 30-65 parts of PES filter material return, 0-65 parts of nylon 6630-65 parts, 3-4 parts of each of first and second compatilizers, 0.1-0.3 part of moisture absorption inhibitor, 0.2-0.4 part of antioxidant and 0.6-0.8 part of lubricant.
3. The PES filter feed back of claim 1 alloyed with nylon 66, wherein: the first compatilizer is general plastic grafted glycidyl methacrylate, and the second compatilizer is general plastic grafted maleic anhydride; the antioxidant is a mixture of N, N' -bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexamethylene diamine and tris (2, 4-di-tert-butylphenyl) phosphite in a mass ratio of 1: 1; the lubricant is silicone powder with the molecular weight of 70 ten thousand to 75 ten thousand; the moisture absorption inhibitor is polydimethylsiloxane; the nylon 66 is nylon 66 pure resin with relative viscosity of 2.4-3.0.
4. The PES filter feed back of claim 1 alloyed with nylon 66, wherein: PES filter media feed back is taken from filter media manufacturing plant.
5. The PES filter feed back of claim 1 alloyed with nylon 66, wherein: the lubricant brand of the silicone powder with the molecular weight of 70 ten thousand to 75 ten thousand is GM-100; the grade of the moisture absorption inhibitor of the polydimethylsiloxane is 301-350.
6. A preparation method of PES filter material feed back and nylon 66 alloy is characterized by comprising the following steps: drying the PES filter material return material, the nylon 66, the first compatilizer and the second compatilizer for 4 hours at the temperature of 120 ℃, and then uniformly mixing the PES filter material return material, the nylon 66, the first compatilizer and the second compatilizer with a moisture absorption inhibitor, an antioxidant and a lubricant in a high-speed mixer; finally, the alloy is transferred into a double-screw extruder with the length-diameter ratio of 48: 1 to be melted, extruded, granulated and dried to obtain the alloy finished product.
7. The PES filter material return and nylon 66 alloy of claim 6, characterized by that: the nine zone temperatures of the extruder are: 220 ℃, 250 ℃, 320 ℃, 330 ℃, 300 ℃, 280 ℃ and 280 ℃ of the head temperature.
8. The PES filter material return and nylon 66 alloy of claim 6, characterized by that: the vacuum degree of the extruder is-0.08 MPa.
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| CN113736250A (en) * | 2021-03-29 | 2021-12-03 | 深圳市晋源塑胶原料有限公司 | PES filter material return material and nylon 66 alloy and preparation method thereof |
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