CN102719050B - Halogen-free flame-retardant thermoplastic elastomer material for shock absorption and preparation method for halogen-free flame-retardant thermoplastic elastomer material - Google Patents
Halogen-free flame-retardant thermoplastic elastomer material for shock absorption and preparation method for halogen-free flame-retardant thermoplastic elastomer material Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention provides a halogen-free flame-retardant thermoplastic elastomer material for shock absorption and a preparation method for the halogen-free flame-retardant thermoplastic elastomer material. The halogen-free flame-retardant thermoplastic elastomer material for the shock absorption comprises the following components in part by weight: 20 to 60 parts of thermoplastic elastomer, 3 to 10 parts of compatilizer, 3 to 10 parts of filling oil, 25 to 35 parts of halogen-free phosphorus-nitrogen compounded flame retardant, 5 to 15 parts of flame-retardant synergistic agent and 0.1 to 1 part of antioxidant. The material can achieve a high-performance damping shock absorption effect, has a UL-94V-0 grade flame-retardant property, meets halogen-free and environment-friendly requirements, and is easy to machine and mold.
Description
Technical field
The present invention relates to thermoplastic elastic material field, particularly relate to halogen-free flame retardant thermoplastic elastomer material and preparation method thereof for a kind of damping.
Background technology
Automobile-used instrument, household electrical appliance can cause damage because of strong vibratory impulse in real work; the damage bringing in order to reduce as far as possible this vibratory impulse; usually, by selecting various cushion blockings to obtain good vibration damping isolating affection, reach the object of protection instrument.
Rubber is more common cushioning material, superior damping performance and ageing-resistant performance make it have certain advantage, yet rubber exists curing cycle long, the shortcomings such as difficult forming, having limited to a certain extent it uses in a large number, thermoplastic elastomer has the many merits such as directly injection moulding, recoverable, thereby becomes the focus of research.But main flame retardant thermoplastic elastomer material is Halogen material at present, does not meet the environmental protection policy of a lot of countries, is unfavorable for the outlet of China's product.
Summary of the invention
Based on this, be necessary to provide a kind of halogen-free flame retardant thermoplastic elastomer material with High Damping Performance damping effect and preparation method thereof.
A halogen-free flame retardant thermoplastic elastomer material, comprises the component of following weight part:
20 ~ 60 parts of thermoplastic elastomers;
3 ~ 10 parts of compatilizers;
3 ~ 10 parts of extending oils;
25 ~ 35 parts of bittern-free phosphorous-nitrogen compound flame retardants;
5 ~ 15 parts of fire retarding synergists; And
0.1 ~ 1 part, oxidation inhibitor.
Therein in an embodiment, described thermoplastic elastomer is the styrene-butadiene-copolymer L604 after hydrogenation, styrene-butadiene-copolymer L605 after hydrogenation, styrene-butadiene-copolymer L606 after hydrogenation, styrene-butadiene-copolymer L607 after hydrogenation, styrene-butadiene-copolymer L609 after hydrogenation, styrene-butadiene-copolymer L611 after hydrogenation, unhydrided styrene ethylene branching isoprene triblock copolymer 5127, unhydrided styrene ethylene branching isoprene triblock copolymer 5125, at least one in the styrene ethylene branching isoprene triblock copolymer 7311 of the styrene ethylene branching isoprene triblock copolymer 7125 of hydrogenation and hydrogenation.
In an embodiment, described compatilizer is at least one in hydrogenation thermoplastic styrene butadiene rubber-carboxylic acid graft thing, hydrogenation thermoplastic styrene butadiene rubber-amino grafts, hydrogenation thermoplastic styrene butadiene rubber-maleic anhydride grafts and thermoplastic styrene butadiene rubber-maleic anhydride grafts therein.
In an embodiment, described extending oil is at least one in naphthenic rubber oil, paraffin level rubber oil and polyisobutene therein.
Therein in an embodiment, described bittern-free phosphorous-nitrogen compound flame retardant is that alkyl hypo-aluminum orthophosphate/poly-trimeric cyanamide urea hydrochlorate is composite, at least one in composite of ammonium polyphosphate/phosphorus nitrogen expansion type combustion inhibitor.
In an embodiment, described fire retarding synergist is at least one in hydroxy-end capped linear siloxane, graft type two ends polar silicone, ethenyl blocking linear siloxane, polyether modified siloxane, linear methyl-silicone oil and dipentaerythritol therein.
Therein in an embodiment, described oxidation inhibitor is Hinered phenols antioxidant and phosphite ester kind antioxidant is composite obtains.
In an embodiment, described Hinered phenols antioxidant is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester therein, and described phosphite ester kind antioxidant is three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
A preparation method for halogen-free flame retardant thermoplastic elastomer material for damping, comprises the following steps:
By the fire retarding synergist of 5 ~ 15 weight parts, the extending oil of 3 ~ 10 weight parts is placed in homogenizer, stirs 5 ~ 10 minutes;
Add the thermoplastic elastomer of 20 ~ 60 weight parts, the compatilizer of 3 ~ 10 weight parts, high-speed stirring is mixed 5 ~ 10 minutes;
Add the bittern-free phosphorous-nitrogen compound flame retardant of 20 ~ 35 weight parts, the oxidation inhibitor of 0.1 ~ 1 weight part, high-speed stirring is mixed 5 ~ 10 minutes, obtains Preblend; And
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material;
In an embodiment, the extrusion temperature of described twin screw extruder is 170 ~ 200 ℃ therein.
Above-mentioned damping has the following advantages with halogen-free flame retardant thermoplastic elastomer material:
(1) this material is owing to having added halogen-free flame retardants, and material can reach other flame retardant effect of UL-94V-0 level, meets environmental requirement; Meanwhile, reduce to a certain extent rebound resilience, strengthened damping effect.
(2) this material, owing to having added compatilizer, improves the performance of two-phase interface in polymeric system, improves the scattering problem of fire retardant in this material.
(3) this material has the advantages such as directly injection moulding, recoverable, is easy to machine-shaping, has reduced technical process.
Accompanying drawing explanation
Fig. 1 is halogen-free flame retardant thermoplastic elastomer material preparation method's schema for damping.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below the specific embodiment of the present invention is described in detail.A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public concrete enforcement.
The damping halogen-free flame retardant thermoplastic elastomer material of one embodiment, comprises the component of following weight part:
20 ~ 60 parts of thermoplastic elastomers;
3 ~ 10 parts of compatilizers;
3 ~ 10 parts of extending oils;
25 ~ 35 parts of bittern-free phosphorous-nitrogen compound flame retardants;
5 ~ 15 parts of fire retarding synergists; And
0.1 ~ 1 part, oxidation inhibitor.
Wherein, described thermoplastic elastomer can be the conventional thermoplastic elastomer in this area, be preferably the styrene-butadiene-copolymer L604 after the hydrogenation of Japanese Asahi Kasei Corporation, styrene-butadiene-copolymer L605 after hydrogenation, styrene-butadiene-copolymer L606 after hydrogenation, styrene-butadiene-copolymer L607 after hydrogenation, styrene-butadiene-copolymer L609 after hydrogenation, styrene-butadiene-copolymer L611 after hydrogenation, unhydrided styrene ethylene branching isoprene triblock copolymer 5127, unhydrided styrene ethylene branching isoprene triblock copolymer 5125, at least one in the styrene ethylene branching isoprene triblock copolymer 7311 of the styrene ethylene branching isoprene triblock copolymer 7125 of hydrogenation and hydrogenation.Above-mentioned listed thermoplastic elastomer has lower rebound resilience, the very suitable matrix as cushioning material.Thermoplastic elastomer is under normal temperature, to have the elasticity of rubber, has a class elastomerics of plasticization moulding under high temperature.
Described compatilizer can be the conventional compatilizer in this area, is preferably hydrogenation thermoplastic styrene butadiene rubber-carboxylic acid graft thing (SEBS-g-COOH), hydrogenation thermoplastic styrene butadiene rubber-amino grafts (SEBS-g-NH
2), at least one in hydrogenation thermoplastic styrene butadiene rubber-maleic anhydride grafts and thermoplastic styrene butadiene rubber-maleic anhydride grafts.Compatilizer specifically can be FG1924, the FG1901 of U.S. Kraton company, grafts MP-10, the N502 of Japanese Asahi Kasei Corporation.Compatilizer can improve the performance of two-phase interface in polymeric system, the adhesive power between wild phase, and there is performance steady in a long-term.
Described extending oil can, for the conventional extending oil in this area, be preferably at least one in naphthenic rubber oil, paraffin level rubber oil and polyisobutene.Extending oil specifically can be W-30, the Korea S great Lin polyisobutene PB450 of the naphthenic oil such as the 500N saturated straight chain alkane oil, Kelamayi refinery KNH4006 of Korea S Shuan Long company, Korea S Shuan Long company.Extending oil can increase the mobility of system, also solves to a certain extent the scattering problem of fire retardant.
Described bittern-free phosphorous-nitrogen compound flame retardant can be the conventional bittern-free phosphorous-nitrogen compound flame retardant in this area, is preferably that alkyl hypo-aluminum orthophosphate/poly-trimeric cyanamide urea hydrochlorate is composite, at least one in composite of ammonium polyphosphate/phosphorus nitrogen expansion type combustion inhibitor.Wherein, alkyl hypo-aluminum orthophosphate/poly-composite CG-45/CG-615 that specifically can be Hengqiao Stock Co., Ltd. of trimeric cyanamide urea hydrochlorate; Phosphorus nitrogen expansion type combustion inhibitor specifically can be the Pu Saifu phosphorus chemistry EPFR-400A of company limited, EPFR-100D, EPFR-110D; Ammonium polyphosphate is specially the Pu Saifu phosphorus chemistry EPFR-APP222 of company limited, EPFR-APP231, EPFR-APP241.Bittern-free phosphorous-nitrogen compound flame retardant has good processing characteristics and flame retardant resistance, has improved the flame retardant properties of product.
Described fire retarding synergist can be the conventional fire retarding synergist in this area, is preferably at least one in hydroxy-end capped linear siloxane, graft type two ends polar silicone, ethenyl blocking linear siloxane, polyether modified siloxane, linear methyl-silicone oil and dipentaerythritol.Fire retarding synergist specifically can be the dipentaerythritol that Germany wins wound Degussa graft type two ends polar silicone E525, hydroxy-end capped linear siloxane H-Si 6440p, ethenyl blocking linear siloxane V-Si 4042, polyether modified siloxane 5885, the linear methyl-silicone oil SFR100 of U.S. Momentive, Hengqiao Stock Co., Ltd..Fire retarding synergist and fire retardant produce synergistic effect, improve the flame retardant properties of fire retardant, reduce total consumption of fire retardant.
Described oxidation inhibitor can be the conventional oxidation inhibitor in this area, is preferably Hinered phenols antioxidant and phosphite ester kind antioxidant is composite., there is the variations such as degraded thereby suppress material in the free radical that oxidation inhibitor energy absorbing material produces in the course of processing, the while can prevent that product from making degradation because of oxidation in the course of processing.
Described Hinered phenols antioxidant can be the conventional Hinered phenols antioxidant in this area, specifically can be four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), described phosphite ester kind antioxidant can be the conventional phosphite ester kind antioxidant in this area, specifically can be three (2,4-di-tert-butyl-phenyl) phosphorous acid esters (irgasfos 168).
Above-mentioned damping has the following advantages with halogen-free flame retardant thermoplastic elastomer material:
(1) this material is owing to having added halogen-free flame retardants, and material can reach other flame retardant effect of UL-94V-0 level, meets environmental requirement; Meanwhile, reduce to a certain extent rebound resilience, strengthened damping effect.
(2) this material, owing to having added compatilizer, improves the performance of two-phase interface in polymeric system, improves the scattering problem of fire retardant in this material.
(3) this material has the advantages such as directly injection moulding, recoverable, is easy to machine-shaping, has reduced technical process.
Refer to Fig. 1, the preparation method of halogen-free flame retardant thermoplastic elastomer material for the damping of an embodiment, comprises the following steps:
S100, by the fire retarding synergist of 5 ~ 15 weight parts, the extending oil of 3 ~ 10 weight parts is placed in homogenizer, stirs 5 ~ 10 minutes;
S200, add the thermoplastic elastomer of 20 ~ 60 weight parts, the compatilizer of 3 ~ 10 weight parts, high-speed stirring is mixed 5 ~ 10 minutes;
S300, add the bittern-free phosphorous-nitrogen compound flame retardant of 20 ~ 35 weight parts, the oxidation inhibitor of 0.1 ~ 1 weight part, high-speed stirring is mixed 5 ~ 10 minutes, obtains Preblend; And
S400, by described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material;
Wherein, the extrusion temperature of described twin screw extruder is 170 ~ 200 ℃.
Preferably, twin screw extruder temperature is that 170 ℃ of ，Cong of die head, mono-Dao Ba district, district temperature is respectively 110,160,, 170,180,190,200,185,175 ℃.
The preparation method of above-mentioned halogen-free flame retardant thermoplastic elastomer material, has the following advantages:
In order to solve the scattering problem of fire retardant and fire retarding synergist, minute three step mixing raw materials.Step S100 mixes fire retarding synergist with extending oil, allow fire retarding synergist be well dispersed in extending oil; Step S200 adds thermoplastic elastomer and compatilizer, allows thermoplastic elastomer surface adsorption fire retarding synergist and extending oil; Step S300 adds bittern-free phosphorous-nitrogen compound flame retardant and oxidation inhibitor, allows fire retardant be dispersed in thermoplastic elastic surface.
Below in conjunction with embodiment, the invention will be further elaborated.
Embodiment 1
The extending oil PB450 of the fire retarding synergist V-Si 4042 of the dipentaerythritol of 5 weight parts, 5 weight parts and 5 weight parts is placed in to homogenizer, stirs 5 minutes.
Add the elastomerics L609 of elastomerics 7125,30 weight parts of 20 weight parts and the compatilizer FG1901 of 5 weight parts, high-speed stirring is mixed 5 minutes.
Add the EPFR-APP222/EPFR-400A of 30 weight parts composite, the antioxidant 1010 of 0.1 weight part and the irgasfos 168 of 0.1 weight part, high-speed stirring is mixed 5 minutes, obtains Preblend.
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material.
Wherein, twin screw extruder temperature is that 170 ℃ of ，Cong of die head, mono-Dao Ba district, district temperature is respectively 110,160,, 170,180,190,200,185,175 ℃.
Embodiment 2
The extending oil W-30 of the fire retarding synergist SFR100 of the dipentaerythritol of 5 weight parts, 5 weight parts and 5 weight parts is placed in to homogenizer, stirs 8 minutes.
Add the elastomerics L609 of 50 weight parts and the compatilizer MP-10 of 5 weight parts, high-speed stirring is mixed 7 minutes.
Add the EPFR-APP231/EPFR-100D of 30 weight parts composite, the antioxidant 1010 of 0.1 weight part and the irgasfos 168 of 0.1 weight part, high-speed stirring is mixed 8 minutes, obtains Preblend.
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material.
Wherein, twin screw extruder temperature is that 170 ℃ of ，Cong of die head, mono-Dao Ba district, district temperature is respectively 110,160,, 170,180,190,200,185,175 ℃.
Embodiment 3
The extending oil PB450 of the fire retarding synergist V-Si 4042 of the dipentaerythritol of 5 weight parts, 5 weight parts and 5 weight parts is placed in to homogenizer, stirs 10 minutes.
Add the elastomerics L609 of elastomerics 7125,30 weight parts of 20 weight parts and the compatilizer N502 of 5 weight parts, high-speed stirring is mixed 5 minutes.
Add the EPFR-APP241/EPFR-110D of 30 weight parts composite, the antioxidant 1010 of 0.1 weight part and the irgasfos 168 of 0.1 weight part, high-speed stirring is mixed 10 minutes, obtains Preblend.
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material.
Wherein, twin screw extruder temperature is that 170 ℃ of ，Cong of die head, mono-Dao Ba district, district temperature is respectively 110,160,, 170,180,190,200,185,175 ℃.
Embodiment 4
The extending oil W-30 of the fire retarding synergist SFR100 of the dipentaerythritol of 5 weight parts, 5 weight parts and 5 weight parts is placed in to homogenizer, stirs 6 minutes.
Add the elastomerics L605 of 50 weight parts and the compatilizer N502 of 5 weight parts, high-speed stirring is mixed 6 minutes.
Add the EPFR-APP231/EPFR-110D of 30 weight parts composite, the antioxidant 1010 of 0.1 weight part and the irgasfos 168 of 0.1 weight part, high-speed stirring is mixed 8 minutes, obtains Preblend.
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material.
Wherein, twin screw extruder temperature is that 170 ℃ of ，Cong of die head, mono-Dao Ba district, district temperature is respectively 110,160,, 170,180,190,200,185,175 ℃.
Embodiment 5
The fire retarding synergist SFR100 of the fire retarding synergist V-Si of 5 weight parts 4042,5 weight parts and the extending oil KN4006 of 5 weight parts are placed in to homogenizer, stir 5 minutes.
Add the elastomerics L609 of elastomerics 7125,30 weight parts of 20 weight parts and the compatilizer MP-10 of 5 weight parts, high-speed stirring is mixed 5 minutes.
The antioxidant 1010 that adds composite and 0.1 weight part of the CG-45/CG-615 of 30 weight parts, high-speed stirring is mixed 5 minutes, obtains Preblend.
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material.
Wherein, twin screw extruder temperature is that 170 ℃ of ，Cong of die head, mono-Dao Ba district, district temperature is respectively 110,160,, 170,180,190,200,185,175 ℃.
Embodiment 6
The fire retarding synergist SFR100 of the polyether modified siloxane of 5 weight parts 5885,5 weight parts and the extending oil 500N of 5 weight parts are placed in to homogenizer, stir 10 minutes.
Add the elastomerics 7125 of 50 weight parts and the compatilizer FG1924 of 5 weight parts, high-speed stirring is mixed 10 minutes.
The irgasfos 168 that adds composite and 1 weight part of the CG-45/CG-615 of 30 weight parts, high-speed stirring is mixed 10 minutes, obtains Preblend.
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material.
Wherein, twin screw extruder temperature is that 170 ℃ of ，Cong of die head, mono-Dao Ba district, district temperature is respectively 110,160,, 170,180,190,200,185,175 ℃.
The damping halogen-free flame retardant thermoplastic elastomer material of above-described embodiment, prepares test bars with injection moulding machine in 70 ℃ after dry 2 hours, and the performance test results is as shown in table 1.
Table 1 elastomer material the performance test results
As shown in Table 1, damping halogen-free flame retardant thermoplastic elastomer material of the present invention, has excellent mechanical property, low rebound resilience, burning rank and reaches UL94V-0, meets the requirement of elastomer material for damping shock absorption.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (3)
1. a damping halogen-free flame retardant thermoplastic elastomer material, is characterized in that, the component of following weight part, consists of:
Described thermoplastic elastomer is the styrene-butadiene-copolymer L604 after hydrogenation, styrene-butadiene-copolymer L605 after hydrogenation, styrene-butadiene-copolymer L606 after hydrogenation, styrene-butadiene-copolymer L607 after hydrogenation, styrene-butadiene-copolymer L609 after hydrogenation, styrene-butadiene-copolymer L611 after hydrogenation, unhydrided styrene ethylene branching isoprene triblock copolymer 5127, unhydrided styrene ethylene branching isoprene triblock copolymer 5125, at least one in the styrene ethylene branching isoprene triblock copolymer 7311 of the styrene ethylene branching isoprene triblock copolymer 7125 of hydrogenation and hydrogenation,
Described compatilizer is at least one in hydrogenation thermoplastic styrene butadiene rubber-carboxylic acid graft thing, hydrogenation thermoplastic styrene butadiene rubber-amino grafts, hydrogenation thermoplastic styrene butadiene rubber-maleic anhydride grafts and thermoplastic styrene butadiene rubber-maleic anhydride grafts;
Described extending oil is at least one in naphthenic rubber oil, paraffin level rubber oil and polyisobutene;
Described bittern-free phosphorous-nitrogen compound flame retardant is that alkyl hypo-aluminum orthophosphate/poly-trimeric cyanamide urea hydrochlorate is composite, at least one in composite of ammonium polyphosphate/phosphorus nitrogen expansion type combustion inhibitor;
Described fire retarding synergist is at least one in hydroxy-end capped linear siloxane, graft type two ends polar silicone, ethenyl blocking linear siloxane, polyether modified siloxane, linear methyl-silicone oil and dipentaerythritol;
Described oxidation inhibitor is Hinered phenols antioxidant and phosphite ester kind antioxidant is composite obtains; Described Hinered phenols antioxidant is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and described phosphite ester kind antioxidant is three (2,4-di-tert-butyl-phenyl) phosphorous acid ester.
2. a preparation method for halogen-free flame retardant thermoplastic elastomer material for damping as claimed in claim 1, is characterized in that, comprises the following steps:
The extending oil of the fire retarding synergist of 5～15 weight parts, 3～10 weight parts is placed in to homogenizer, stirs 5～10 minutes;
Add the thermoplastic elastomer of 20～60 weight parts, the compatilizer of 3～10 weight parts, high-speed stirring is mixed 5～10 minutes;
Add the bittern-free phosphorous-nitrogen compound flame retardant of 25～35 weight parts, the oxidation inhibitor of 0.1～1 weight part, high-speed stirring is mixed 5～10 minutes, obtains Preblend; And
By described Preblend be placed in that twin screw extruder is extruded, traction, cooling, granulation, obtain damping halogen-free flame retardant thermoplastic elastomer material.
3. the preparation method of halogen-free flame retardant thermoplastic elastomer material for damping according to claim 2, is characterized in that, the extrusion temperature of described twin screw extruder is 170～200 ℃.
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Address after: Sightseeing road rich industrial park in Baoan District Guanlan street of Shenzhen of Guangdong province 518109 City Guifeng No. 1 Patentee after: Sheng Jialun rubber (Shenzhen) Limited by Share Ltd Address before: Sightseeing road rich industrial park in Baoan District Guanlan street of Shenzhen of Guangdong province 518109 City Guifeng No. 1 Patentee before: Shenzhen Sungallon Rubber & Plastic Industry Co., Ltd. |