CN105331102A - Toughened nylon 66 material and preparation method and application thereof - Google Patents
Toughened nylon 66 material and preparation method and application thereof Download PDFInfo
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- CN105331102A CN105331102A CN201510937181.5A CN201510937181A CN105331102A CN 105331102 A CN105331102 A CN 105331102A CN 201510937181 A CN201510937181 A CN 201510937181A CN 105331102 A CN105331102 A CN 105331102A
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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
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention provides a toughened nylon 66 material and a preparation method and application thereof. The nylon material is prepared from 100 parts of nylon 66, 4-20 parts of crude silicon rubber, 0.3-0.8 part of an antioxidant and 0.024-0.3 part of a sulfurizing reagent. The preparation method comprises the steps that the nylon 66, the crude silicon rubber, the antioxidant and the sulfurizing reagent are weighed according to the parts by weight, after being mixed to be uniform, the components are added into a double-screw extruder for melting and blending, and cooling, traction and chopping are performed to obtain the toughened nylon 66 material. The raw silicon rubber is used as a toughening agent, the dynamic vulcanization technology is adopted for toughening the nylon 66, the silicon rubber can be evenly dispersed into a nylon 66 base body in a micron order small particle shape, and therefore the toughened nylon 66 material with the high toughness and good heat resistance is obtained.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to a kind of nylon material and its preparation method and application.
Background technology
Nylon66 fiber is owing to having wear resistance, excellent properties such as solvent resistance and broad use temperature and obtaining are applied more and more widely, but because nylon66 fiber contains polar group, water-absorbent is larger, if use in a humidity environment, then easily cause the reduction of Young's modulus and intensity, thus affect its dimensional stability; Meanwhile, again because nylon66 fiber is easily brittle under low temperature and drying regime, thus cause its impact property to be deteriorated, these all limit it and further apply.
In order to expand the application of nylon66 fiber, making it have higher impact-resistance, lower water-intake rate or good workability, needing to use properties-correcting agent to carry out modification to it.Because some properties-correcting agent exists the problem of poor compatibility, carrying out modified to nylon66 fiber, although its shock strength can be improved, tensile strength and the flexural strength of finished product nylon 66 composite material may had influence on; And although other properties-correcting agent can improve its toughness, but its resistance toheat can be had influence on.Therefore, explore a kind of method of nylon66 fiber being carried out to modification and just become important research topic finally to obtain the uniform nylon 66 composite material of comprehensive comparison.
Summary of the invention
Main purpose of the present invention is to provide a kind of Toughed nylon66 material.
Second object of the present invention is to provide the preparation method of above-mentioned Toughed nylon66 material.
3rd object of the present invention is the application providing above-mentioned Toughed nylon66 material.
For achieving the above object, solution of the present invention is:
A kind of Toughed nylon66 material, it contains following component and each component has following weight part:
Wherein, the weight part of raw-silastic continuously can also be preferably 8 ?12 parts; And/or, the weight part of oxidation inhibitor can also be preferably 0.5 ?0.6 part; And/or, the weight part of vulcanizing agent can also be preferably 0.065 ?0.14 part.
Raw-silastic continuously can be any one or a few of methyl ethylene silicon raw rubber, methyl phenyl vinyl silicon raw rubber and fluorine silicon raw rubber.
Oxidation inhibitor can be phosphite kind antioxidant, Hinered phenols antioxidant or monothioester kind antioxidant.
Phosphite kind antioxidant can be three (2,4 ?di-tert-butyl-phenyl) phosphorous acid esters or four (2,4 ?bis-tertiary butyl phenyl ?4,4 ?xenyl) biphosphonate.
Hinered phenols antioxidant can N; N' ?Shuan ?(3 ?(3; 5 ?bis-tertiary Ding Ji ?4 ?hydroxy phenyl) propionyl) two [β ?(3 ?tertiary Ding Ji ?4 ?hydroxyl base ?5 ?aminomethyl phenyl) the ?propionic ester of hexanediamine, 3 ?(3,5 ?bis-tertiary Ding Ji ?4 ?hydroxy phenyl) propionic acid Octadecane alcohol ester or Triethylene glycol.
Monothioester kind antioxidant can be the two dodecane ester of 3,3 ?thio-2 acids two tetradecane ester, thio-2 acid 2 stearyl ester or thio-2 acid.
Vulcanizing agent can be selected from dibenzoyl peroxide, 2,4 ?any one or a few in dichlorobenzoperoxide and peroxidized t-butyl perbenzoate.
Prepare a method for above-mentioned Toughed nylon66 material, it comprises the steps:
(1), by 100 parts of dry nylon66 fiber, 4 ?20 parts of raw-silastic continuouslies, 0.3 ?0.8 part of oxidation inhibitor and 0.024 ?0.3 part of vulcanizing agent mix, obtain Preblend;
(2), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (2), the temperature of twin screw extruder be 230 ?280 DEG C; In step (2), each district temperature of twin screw extruder can be preferably: district's temperature is 230 ± 10 DEG C, and two district's temperature are 235 ± 10 DEG C, and three district's temperature are 240 ± 10 DEG C, four district's temperature are 255 ± 10 DEG C, five district's temperature are 260 ± 10 DEG C, and six district's temperature are 260 ± 10 DEG C, and seven district's temperature are 265 ± 10 DEG C, eight district's temperature are 265 ± 10 DEG C, nine district's temperature are 265 ± 10 DEG C, and ten district's temperature are 260 ± 10 DEG C, and head temperature is 260 ± 10 DEG C.In step (2), the screw speed of twin screw extruder can be 180rpm.
Above-mentioned Toughed nylon66 material may be used for making automobile component.
Above-mentioned Toughed nylon66 material can also be used for material of construction, furniture material or finishing material.
Owing to adopting such scheme, the invention has the beneficial effects as follows:
The first, the present invention adopts raw-silastic continuously to carry out toughness reinforcing as toughner to nylon66 fiber, in material system, with the addition of vulcanizing agent again simultaneously, in the process of processing mixing, raw-silastic continuously occurs crosslinked under the effect of vulcanizing agent, under the shearing action of twin screw extruder, silicon rubber is cut into micron particles and is dispersed in nylon66 fiber matrix, solve well crosslinking curing good after silicon rubber in nylon66 fiber matrix, be difficult to homodisperse problem, good toughening effect is played to nylon66 fiber matrix.
The second, the silicon rubber after being cross-linked still has good dimensional stability and strength stability under long high temperature, the Homogeneous phase mixing of silicon rubber and nylon66 fiber (PA66) can improve the reduction of Young's modulus that nylon66 fiber causes owing to absorbing water for a long time and intensity, finished product can be used at a higher temperature for a long time, ensure that the thermotolerance that Toughed nylon66 material of the present invention is good.
Embodiment
The invention provides a kind of Toughed nylon66 material and its preparation method and application.
< Toughed nylon66 material >
A kind of Toughed nylon66 material, it contains following component and each component has following weight part:
Wherein, the weight part of raw-silastic continuously can be preferably 8 ?12 parts; And/or, the weight part of oxidation inhibitor can be preferably 0.5 ?0.6 part; And/or, the weight part of vulcanizing agent can be preferably 0.065 ?0.14 part.
The weight part of nylon66 fiber is dried weight (dry weight), is obtained by 12h dry in the moisture eliminator of 100 DEG C.
Raw-silastic continuously can be any one or a few of methyl ethylene silicon raw rubber, methyl phenyl vinyl silicon raw rubber and fluorine silicon raw rubber.
Oxidation inhibitor can be phosphite kind antioxidant, Hinered phenols antioxidant or monothioester kind antioxidant.
Above-mentioned phosphite kind antioxidant can be three (2,4 ?di-tert-butyl-phenyl) phosphorous acid esters or four (2,4 ?bis-tertiary butyl phenyl ?4,4 ?xenyl) biphosphonate.
Above-mentioned Hinered phenols antioxidant can be N; N' ?Shuan ?(3 ?(3; 5 ?bis-tertiary Ding Ji ?4 ?hydroxy phenyl) propionyl) two [β ?(3 ?tertiary Ding Ji ?4 ?hydroxyl base ?5 ?aminomethyl phenyl) the ?propionic ester of hexanediamine, 3 ?(3,5 ?bis-tertiary Ding Ji ?4 ?hydroxy phenyl) propionic acid Octadecane alcohol ester or Triethylene glycol.
Above-mentioned monothioester kind antioxidant can be the two dodecane ester of 3,3 ?thio-2 acids two tetradecane ester, thio-2 acid 2 stearyl ester or thio-2 acid.
Above-mentioned vulcanizing agent can be selected from dibenzoyl peroxide (BP), 2,4 ?any one or a few in dichlorobenzoperoxide (DCBP) and peroxidized t-butyl perbenzoate (TBPB).The weight part of vulcanizing agent account for the weight part of raw-silastic continuously 0.6 ?1.5%.
The preparation method > of < Toughed nylon66 material
A preparation method for Toughed nylon66 material, it comprises the steps:
(1), by 100 parts of dry nylon66 fiber, 4 ?20 parts of raw-silastic continuouslies, 0.3 ?0.8 part of oxidation inhibitor and 0.024 ?0.3 part of vulcanizing agent mix, obtain Preblend;
(2), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (1), dry nylon66 fiber is by nylon66 fiber dry 12h gained in the moisture eliminator of 100 DEG C.
In step (1), mixing is carried out in high-speed mixer, and the time of mixing can be 3 ?5min.
In step (1), the weight part of raw-silastic continuously can also be preferably 8 ?12 parts; And/or, the weight part of oxidation inhibitor can also be preferably 0.5 ?0.6 part; And/or, the weight part of vulcanizing agent can also be preferably 0.065 ?0.14 part.
In step (2), the temperature of twin screw extruder can be 230 ?280 DEG C.
In step (2), twin screw extruder can adopt zone temperature to control, and its each district temperature can be: district's temperature is 230 ± 10 DEG C, two district's temperature are 235 ± 10 DEG C, three district's temperature are 240 ± 10 DEG C, and four district's temperature are 255 ± 10 DEG C, and five district's temperature are 260 ± 10 DEG C, six district's temperature are 260 ± 10 DEG C, seven district's temperature are 265 ± 10 DEG C, and eight district's temperature are 265 ± 10 DEG C, and nine district's temperature are 265 ± 10 DEG C, ten district's temperature are 260 ± 10 DEG C, and head temperature is 260 ± 10 DEG C.
In the temperature in above-mentioned each district, one district's temperature, two district's temperature, three district's temperature, four district's temperature and five district's temperature are the trend raised gradually, i.e. five district temperature > tetra-district temperature > tri-district temperature > bis-district temperature > mono-district temperature.Above-mentioned each district temperature raises gradually, and material (i.e. the mixture of each feed composition formation) temperature can be made to reach suitable processing temperature gradually.
Seven district's temperature, eight district's temperature and nine district's temperature are consistent.Ten district's temperature slightly reduce than nine district's temperature, but equal head temperature.Because screw rod shearing makes temperature of charge continue to raise, the situation of material thermolysis is caused to occur to avoid temperature of charge too high so reduce by ten district's temperature.
In step (2), the screw speed of twin screw extruder can be 180rpm.
Contriver finds under study for action, if nylon66 fiber and the direct melt blending of rubber, the consistency due to nylon66 fiber and rubber is poor and the dispersiveness that rubber is in nylon66 fiber matrix is also poor, and therefore rubber is not good to the toughening effect of nylon66 fiber.In addition, due to rubber and/or elastomerics non-refractory, when adopting rubber and/or elastomerics to carry out Toughed nylon66, the resistance toheat of matrix material can be caused to exist and to decline more significantly.
In order to overcome above-mentioned defect, the present invention by raw-silastic continuously and nylon66 fiber blended time, vulcanizing agent is with the addition of in material system, realize the dynamic vulcanization of material system at twin screw extruder, improve the dispersiveness of silicon rubber between nylon66 fiber matrix, improve the consistency of silicon rubber and nylon66 fiber, the toughness of nylon66 fiber matrix can not only be improved significantly, the thermotolerance of nylon66 fiber matrix can also be improved, thus obtain the Toughed nylon66 material with higher toughness and thermotolerance.
The purposes > of < Toughed nylon66 material
Toughed nylon66 material of the present invention can be used in producing electrical/electronic part (as automobile component etc.).
Toughed nylon66 material of the present invention can also as material of construction, furniture material or finishing material.
< embodiment >
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment one
The content of each component of the Toughed nylon66 material of the present embodiment is as shown in table 1 below.
The component concentration table of the Toughed nylon66 material of table 1 embodiment one
In Table 1, the weight part of nylon66 fiber is dried weight (dry weight), as follows.
The preparation method of the Toughed nylon66 material in the present embodiment comprises the steps:
(1), by nylon66 fiber dry 12h in the moisture eliminator of 100 DEG C, dry nylon66 fiber is obtained;
(2), according to the weight part of table 1 take dry nylon66 fiber, raw-silastic continuously, oxidation inhibitor, vulcanizing agent mix 5min in high-speed mixer, obtain Preblend;
(3), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (3), each district temperature of twin screw extruder is: district's temperature is 230 DEG C, two district's temperature are 235 DEG C, and three district's temperature are 240 DEG C, and four district's temperature are 255 DEG C, five district's temperature are 260 DEG C, six district's temperature are 260 DEG C, and seven district's temperature are 265 DEG C, and eight district's temperature are 265 DEG C, nine district's temperature are 265 DEG C, ten district's temperature are 260 DEG C, and head temperature is 260 DEG C, screw speed 180r/min.
Embodiment two
The content of each component of the Toughed nylon66 material of the present embodiment is as shown in table 2 below.
The component concentration table of the Toughed nylon66 material of table 2 embodiment two
The preparation method of the Toughed nylon66 material in the present embodiment comprises the steps:
(1), by nylon66 fiber dry 12h in the moisture eliminator of 100 DEG C, dry nylon66 fiber is obtained;
(2), according to the weight part of table 2 take dry nylon66 fiber, raw-silastic continuously, oxidation inhibitor, vulcanizing agent mix 5min in high-speed mixer, obtain Preblend;
(3), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (3), each district temperature of twin screw extruder is: district's temperature is 230 DEG C, two district's temperature are 235 DEG C, and three district's temperature are 240 DEG C, and four district's temperature are 255 DEG C, five district's temperature are 260 DEG C, six district's temperature are 260 DEG C, and seven district's temperature are 265 DEG C, and eight district's temperature are 265 DEG C, nine district's temperature are 265 DEG C, ten district's temperature are 260 DEG C, and head temperature is 260 DEG C, screw speed 180r/min.
Embodiment three
The content of each component of the Toughed nylon66 material of the present embodiment is as shown in table 3 below.
The component concentration table of the Toughed nylon66 material of table 3 embodiment three
The preparation method of the Toughed nylon66 material in the present embodiment comprises the steps:
(1), by nylon66 fiber dry 12h in the moisture eliminator of 100 DEG C, dry nylon66 fiber is obtained;
(2), according to the weight part of table 3 take dry nylon66 fiber, raw-silastic continuously, oxidation inhibitor, vulcanizing agent mix 3min in high-speed mixer, obtain Preblend;
(3), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (3), each district temperature of twin screw extruder is: district's temperature is 230 DEG C, two district's temperature are 235 DEG C, and three district's temperature are 240 DEG C, and four district's temperature are 255 DEG C, five district's temperature are 260 DEG C, six district's temperature are 260 DEG C, and seven district's temperature are 265 DEG C, and eight district's temperature are 265 DEG C, nine district's temperature are 265 DEG C, ten district's temperature are 260 DEG C, and head temperature is 260 DEG C, screw speed 180r/min.
Embodiment four
The content of each component of the Toughed nylon66 material of the present embodiment is as shown in table 4 below.
The component concentration table of the Toughed nylon66 material of table 4 embodiment four
The preparation method of the Toughed nylon66 material in the present embodiment comprises the steps:
(1), by nylon66 fiber dry 12h in the moisture eliminator of 100 DEG C, dry nylon66 fiber is obtained;
(2), according to the weight part of table 4 take dry nylon66 fiber, raw-silastic continuously, oxidation inhibitor, vulcanizing agent mix 5min in high-speed mixer, obtain Preblend;
(3), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (3), each district temperature of twin screw extruder is: district's temperature is 230 DEG C, two district's temperature are 235 DEG C, and three district's temperature are 240 DEG C, and four district's temperature are 255 DEG C, five district's temperature are 260 DEG C, six district's temperature are 260 DEG C, and seven district's temperature are 265 DEG C, and eight district's temperature are 265 DEG C, nine district's temperature are 265 DEG C, ten district's temperature are 260 DEG C, and head temperature is 260 DEG C, screw speed 180r/min.
Embodiment five
The content of each component of the Toughed nylon66 material of the present embodiment is as shown in table 5 below.
The component concentration table of the Toughed nylon66 material of table 5 embodiment five
In table 5, raw-silastic continuously is the mixture of fluorine silicon raw rubber and methyl phenyl vinyl silicon raw rubber, and the weight ratio of the two is 1 ︰ 1.
The preparation method of the Toughed nylon66 material in the present embodiment comprises the steps:
(1), by nylon66 fiber dry 12h in the moisture eliminator of 100 DEG C, dry nylon66 fiber is obtained;
(2), according to the weight part of table 5 take dry nylon66 fiber, raw-silastic continuously, oxidation inhibitor, vulcanizing agent mix 5min in high-speed mixer, obtain Preblend;
(3), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (3), each district temperature of twin screw extruder is: district's temperature is 230 DEG C, two district's temperature are 235 DEG C, and three district's temperature are 240 DEG C, and four district's temperature are 255 DEG C, five district's temperature are 260 DEG C, six district's temperature are 260 DEG C, and seven district's temperature are 265 DEG C, and eight district's temperature are 265 DEG C, nine district's temperature are 265 DEG C, ten district's temperature are 260 DEG C, and head temperature is 260 DEG C, screw speed 180r/min.
Embodiment six
The content of each component of the Toughed nylon66 material of the present embodiment is as shown in table 6 below.
The component concentration table of the Toughed nylon66 material of table 6 embodiment six
In table 6, raw-silastic continuously is the mixture of methyl ethylene silicon raw rubber and methyl phenyl vinyl silicon raw rubber, and the weight ratio of the two is 1 ︰ 1.
The preparation method of the Toughed nylon66 material in the present embodiment comprises the steps:
(1), by nylon66 fiber dry 12h in the moisture eliminator of 100 DEG C, dry nylon66 fiber is obtained;
(2), according to the weight part of table 6 take dry nylon66 fiber, raw-silastic continuously, oxidation inhibitor, vulcanizing agent mix 5min in high-speed mixer, obtain Preblend;
(3), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (3), each district temperature of twin screw extruder is: district's temperature is 230 DEG C, two district's temperature are 235 DEG C, and three district's temperature are 240 DEG C, and four district's temperature are 255 DEG C, five district's temperature are 260 DEG C, six district's temperature are 260 DEG C, and seven district's temperature are 265 DEG C, and eight district's temperature are 265 DEG C, nine district's temperature are 265 DEG C, ten district's temperature are 260 DEG C, and head temperature is 260 DEG C, screw speed 180r/min.
Comparative example
The content of each component of the nylon 66 material of this comparative example is as shown in table 7 below.
The component concentration table of the nylon 66 material of table 7 comparative example
The preparation method of the nylon 66 material in this comparative example comprises the steps:
(1), by nylon66 fiber dry 12h in the moisture eliminator of 100 DEG C, dry nylon66 fiber is obtained;
(2), according to the weight part of table 7 take dry nylon66 fiber, raw-silastic continuously and oxidation inhibitor and mix 5min in high-speed mixer, obtain Preblend;
(3), by Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
Wherein, in step (3), each district temperature of twin screw extruder is: district's temperature is 230 DEG C, two district's temperature are 235 DEG C, and three district's temperature are 240 DEG C, and four district's temperature are 255 DEG C, five district's temperature are 260 DEG C, six district's temperature are 260 DEG C, and seven district's temperature are 265 DEG C, and eight district's temperature are 265 DEG C, nine district's temperature are 265 DEG C, ten district's temperature are 260 DEG C, and head temperature is 260 DEG C, screw speed 180r/min.
The performance test results of the matrix material of embodiment one to embodiment six and comparative example is as shown in table 8.
The performance test results table of the matrix material of table 8 comparative example and each embodiment
As shown in Table 8, the notched Izod impact strength of embodiment one to six and comparative example (all containing silicon rubber) has had obvious improvement for pure nylon66 fiber, but it is that the tensile strength of product and flexural strength decline and not obvious, illustrate and add the toughness that silicon rubber can improve PA66 really, play toughness reinforcing effect.
Comparative examples and embodiment one known, embodiment one with the addition of vulcanizing agent, and comparative example does not add vulcanizing agent, and except vulcanizing agent, the two remaining component is then identical.From the data of table 8, the toughening effect of the Toughed nylon66 material (embodiment one gained) made by Technology of Dynamic Vulcanized than the effect of the matrix material prepared by simple melt-blending process (comparative example gained) want good many, the former shock strength is higher than the latter by about 55%, and tensile strength and flexural strength are also obviously improved, when this illustrates the Toughed nylon66 material prepared by Technology of Dynamic Vulcanized, the dispersiveness of silicon rubber improves, and and consistency between nylon66 fiber matrix improve, product performance improve; By changing the consumption of silicon rubber, can adjust further the toughness of product, thus meet the requirement without application scenario.
To sum up, the present invention adopts Technology of Dynamic Vulcanized to carry out toughness reinforcing to nylon66 fiber using raw-silastic continuously as toughner, silicon rubber can be made to be scattered in equably in nylon66 fiber matrix with micron-sized fine particle, thus to obtain the Toughed nylon66 material with high tenacity and good heat resistance.
Above-mentioned is can understand for ease of those skilled in the art and use the present invention to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (10)
1. a Toughed nylon66 material, is characterized in that: containing following component and each component has following weight part:
2. Toughed nylon66 material according to claim 1, is characterized in that: the weight part of described raw-silastic continuously be 8 ?12 parts;
And/or, the weight part of described oxidation inhibitor be 0.5 ?0.6 part;
And/or, the weight part of described vulcanizing agent be 0.065 ?0.14 part.
3. Toughed nylon66 material according to claim 1, is characterized in that: described raw-silastic continuously is any one or a few of methyl ethylene silicon raw rubber, methyl phenyl vinyl silicon raw rubber and fluorine silicon raw rubber.
4. Toughed nylon66 material according to claim 1, is characterized in that: described oxidation inhibitor is phosphite kind antioxidant, Hinered phenols antioxidant or monothioester kind antioxidant.
5. Toughed nylon66 material according to claim 4, it is characterized in that: described phosphite kind antioxidant is three (2,4 ?di-tert-butyl-phenyls) phosphorous acid ester or four (2,4 ?bis-tertiary butyl phenyl ?4,4 ?xenyl) biphosphonate;
And/or, described Hinered phenols antioxidant is N, N' ?Shuan ?(3 ?(3,5 ?bis-tertiary Ding Ji ?4 ?hydroxy phenyl) propionyl) two [β ?(3 ?tertiary Ding Ji ?4 ?hydroxyl base ?5 ?aminomethyl phenyl) the ?propionic ester of hexanediamine, 3 ?(3,5 ?bis-tertiary Ding Ji ?4 ?hydroxy phenyl) propionic acid Octadecane alcohol ester or Triethylene glycol;
And/or, described monothioester kind antioxidant be 3,3 ?the two dodecane ester of thio-2 acid two tetradecane ester, thio-2 acid 2 stearyl ester or thio-2 acid.
6. Toughed nylon66 material according to claim 1, is characterized in that: described vulcanizing agent is selected from dibenzoyl peroxide, 2,4 ?any one or a few in dichlorobenzoperoxide and peroxidized t-butyl perbenzoate.
7. prepare the method as the Toughed nylon66 material as described in arbitrary in claim 1 to 6, it is characterized in that, comprise the steps:
(1), by 100 parts of dry nylon66 fiber, 4 ?20 parts of raw-silastic continuouslies, 0.3 ?0.8 part of oxidation inhibitor and 0.024 ?0.3 part of vulcanizing agent mix, obtain Preblend;
(2), by described Preblend join twin screw extruder and carry out melt blending, after overcooling, traction and pelletizing, obtain Toughed nylon66 material.
8. method according to claim 7, is characterized in that: in step (2), the temperature of described twin screw extruder be 230 ?280 DEG C;
Preferably, each district temperature of described twin screw extruder is: district's temperature is 230 ± 10 DEG C, and two district's temperature are 235 ± 10 DEG C, and three district's temperature are 240 ± 10 DEG C, four district's temperature are 255 ± 10 DEG C, five district's temperature are 260 ± 10 DEG C, and six district's temperature are 260 ± 10 DEG C, and seven district's temperature are 265 ± 10 DEG C, eight district's temperature are 265 ± 10 DEG C, nine district's temperature are 265 ± 10 DEG C, and ten district's temperature are 260 ± 10 DEG C, and head temperature is 260 ± 10 DEG C.
9. method according to claim 7, is characterized in that: in step (2), and the screw speed of described twin screw extruder is 180rpm.
10. if the Toughed nylon66 material as described in arbitrary in claim 1 to 6 is in the application making automobile component, or as the application of material of construction, furniture material or finishing material.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108219447A (en) * | 2018-01-19 | 2018-06-29 | 四川大学 | A kind of preparation method of dynamic vulcanization polyamide/silicon rubber thermoplastic elastomer |
| CN109294220A (en) * | 2018-08-22 | 2019-02-01 | 横店集团东磁股份有限公司 | A kind of injection molding magnetic material-nylon composite materials and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108219447A (en) * | 2018-01-19 | 2018-06-29 | 四川大学 | A kind of preparation method of dynamic vulcanization polyamide/silicon rubber thermoplastic elastomer |
| CN109294220A (en) * | 2018-08-22 | 2019-02-01 | 横店集团东磁股份有限公司 | A kind of injection molding magnetic material-nylon composite materials and preparation method thereof |
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| CN105331102B (en) | 2018-01-16 |
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Denomination of invention: Toughened nylon 66 material and preparation method and application thereof Effective date of registration: 20191202 Granted publication date: 20180116 Pledgee: Chuzhou economic and Technological Development Corporation Pledgor: Shanghai Jieshijie New Materials (Group) Co., Ltd. Registration number: Y2019980000815 |