CN105382992A - Preparing method for heat-resistant damping strengthened modified TPU composite material - Google Patents

Preparing method for heat-resistant damping strengthened modified TPU composite material Download PDF

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Publication number
CN105382992A
CN105382992A CN201510747789.1A CN201510747789A CN105382992A CN 105382992 A CN105382992 A CN 105382992A CN 201510747789 A CN201510747789 A CN 201510747789A CN 105382992 A CN105382992 A CN 105382992A
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heat
resistant damping
imvite
diatomite
strengthens
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孙书卫
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Suzhou Ruigao New Materials Co Ltd
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Suzhou Ruigao New Materials Co Ltd
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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22—Component parts, details or accessories; Auxiliary operations
    • B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22—Component parts, details or accessories; Auxiliary operations
    • B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
    • B29B7/283—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring data of the driving system, e.g. torque, speed, power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22—Component parts, details or accessories; Auxiliary operations
    • B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
    • B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76531—Temperature
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76595—Velocity
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76658—Injection unit
    • B29C2945/76665—Injection unit screw
    • 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
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • 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
    • B29C2948/92885—Screw or gear
    • 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 discloses a preparing method for a heat-resistant damping strength modified TPU composite material. The preparing method includes the following steps that firstly, thermal reduction graphene is prepared; secondly, modified kieselguhr and montmorillonite are coupled; thirdly, primary mixing is conducted; fourthly, secondary mixing is conducted; fifthly, extrusion pelletizing is conducted; and sixthly, injection molding is conducted. According to the preparing method for the heat-resistant damping strength modified TPU composite material, due to reasonable technology design, dispersibility between all components and a base body TPU is effectively improved, the damping performance of the prepared composite material is improved, meanwhile, heat resistance and mechanical performance are improved, comprehensive performance is good, and the application field of the TPU material can be further expanded.

Description

A kind of heat-resistant damping strengthens the preparation method of modified TPU composite
Technical field
The present invention relates to TPU field of compound material, particularly relate to the preparation method that a kind of heat-resistant damping strengthens modified TPU composite.
Background technology
Thermoplastic polyurethane (TPU) has unique micro phase separation structure, modulus and intensity high, density is less, is easy to cast, good with the bond properties of metal, has good processing characteristics simultaneously, is used widely in national defence, civilian industry etc.But the heat resistance of TPU and damping and amortization not good enough, limit it and apply further.
Summary of the invention
The technical problem that the present invention mainly solves is to provide the preparation method that a kind of heat-resistant damping strengthens modified TPU composite.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of heat-resistant damping to strengthen the preparation method of modified TPU composite, comprise the steps:
(1) prepare thermal reduction Graphene: under atmosphere of inert gases, in the Muffle furnace of 900 ~ 1000 DEG C, sinter 20 ~ 30s, then under atmosphere of inert gases, cool to room temperature with the furnace, obtain thermal reduction Graphene, for subsequent use;
(2) coupling modifier diatomite and imvite: diatomite and imvite are added in high-speed mixer in proportion and stirs and evenly mixs, then the silane coupler added for three times with cyclohexane dilution is divided, after high speed whip modified, vapor away cyclohexane, obtain coupling modifier diatomite and imvite;
(3) batch mixings: add the TPU particle of 50 weight portions and the thermal reduction Graphene of the middle preparation of 0.5 ~ 1 weight portion step (1) in banbury, banburying mixing 3 ~ 5min, obtains mixed once base-material;
(4) rerolling: the TPU particle adding 50 weight portions in the banbury of step (3) again, makes it mix 3 ~ 5min with the banburying of described mixed once base-material, obtains secondary intermixture material; And then add the coupling modifier diatomite and imvite that obtain in 1 ~ 3 weight portion hindered phenol and 30 ~ 40 weight portion steps (2) wherein, discharging after banburying mixing 5 ~ 10min;
(5) extruding pelletization: by the mixed material double screw extruder extruding pelletization obtained in step (4);
(6) injection mo(u)lding: by the pellet injection machine injection mo(u)lding obtained in step (5), obtains described heat-resistant damping and strengthens modified TPU composite.
In a preferred embodiment of the present invention, in described step (2), the additional proportion of described diatomite and imvite is 3 ~ 5:2 ~ 3; The consumption of described silane coupler is 1/10 of described diatomite and imvite gross weight, and the dilution ratio of described silane coupler and cyclohexane is 1:50 ~ 100.
In a preferred embodiment of the present invention, in described step (2), described modified condition is: first at 30 ~ 50 DEG C, stirs 1 ~ 2h with the speed of 400 ~ 600r/min; Again at 60 ~ 80 DEG C, stir 20 ~ 40 with the speed of 800 ~ 1000r/min.
In a preferred embodiment of the present invention, in described step (3) and (4), described banburying condition is: rotating speed 50 ~ 150r/min, temperature 80 ~ 100 DEG C.
In a preferred embodiment of the present invention, in described step (5), the screw speed of described extruder is 100 ~ 120r/min, and extrusion temperature scope is 200 ~ 225 DEG C.
In a preferred embodiment of the present invention, in described step (6), the screw speed of described injection machine is 50 ~ 70r/min, and injection temperature is 200 ~ 225 DEG C.
The invention has the beneficial effects as follows: a kind of heat-resistant damping of the present invention strengthens the preparation method of modified TPU composite, by rational technological design, effectively improve the dispersiveness between each component and matrix TPU, the damping capacity of prepared composite improves, heat resistance and mechanical property all improve simultaneously, excellent combination property, contributes to the application expanding TPU material further.
Detailed description of the invention
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The embodiment of the present invention comprises:
Embodiment 1
Heat-resistant damping strengthens a preparation method for modified TPU composite, and concrete steps are as follows:
(1) prepare thermal reduction Graphene: under atmosphere of inert gases, in the Muffle furnace of 900 DEG C, sinter 30s, then under atmosphere of inert gases, cool to room temperature with the furnace, obtain thermal reduction Graphene, for subsequent use;
(2) coupling modifier diatomite and imvite: diatomite and imvite are added stirring 2 ~ 3min extremely mixing in high-speed mixer by the mass ratio of 3:2, then the silane coupler added for three times with cyclohexane dilution is divided, wherein, the consumption of silane coupler is 1/10 of described diatomite and imvite gross weight, and described silane coupler and cyclohexane dilute by the mass ratio of 1:100; After all coupling agents have added, carry out coupling processing, be specially first at 30 DEG C, 2h is stirred with the speed of 600r/min, diatomite and imvite is made fully to mix with coupling agent and carry out coupling processing, and then at 60 DEG C, with the speed high-speed stirred 40min of 1000r/min, contribute to mixing and coupling processing further on the one hand, on the other hand cyclohexane is fully volatilized;
(3) batch mixings: add the TPU particle of 50 weight portions and the thermal reduction Graphene of the middle preparation of 0.5 weight portion step (1) in banbury, at 80 DEG C, under the condition of 150r/min, banburying mixing 3min, obtains mixed once base-material;
(4) rerolling: the TPU particle adding 50 weight portions in the banbury of step (3) again, make itself and described mixed once base-material at 80 DEG C, banburying mixing 3min under the condition of 150r/min, obtains secondary intermixture material; And then add the coupling modifier diatomite and imvite, at identical conditions discharging after banburying mixing 5min that obtain in 3 weight portion hindered phenols and 40 weight portion steps (2) wherein;
(5) extruding pelletization: by the mixed material double screw extruder that obtains in step (4) extruding pelletization under the extrusion temperature of the screw speed of 100r/min and 200 ~ 225 DEG C;
(6) injection mo(u)lding: by the pellet injection machine injection mo(u)lding obtained in step (5), obtain described heat-resistant damping and strengthen modified TPU composite, wherein, the screw speed of injection machine is 50r/min, and injection temperature is 200 ~ 225 DEG C.
Embodiment 2
Heat-resistant damping strengthens a preparation method for modified TPU composite, and concrete steps are as follows:
(1) prepare thermal reduction Graphene: under atmosphere of inert gases, in the Muffle furnace of 1000 DEG C, sinter 20s, then under atmosphere of inert gases, cool to room temperature with the furnace, obtain thermal reduction Graphene, for subsequent use;
(2) coupling modifier diatomite and imvite: diatomite and imvite are added stirring 2 ~ 3min extremely mixing in high-speed mixer by the mass ratio of 5:3, then the silane coupler added for three times with cyclohexane dilution is divided, wherein, the consumption of silane coupler is 1/10 of described diatomite and imvite gross weight, and described silane coupler and cyclohexane dilute by the mass ratio of 1:50; After all coupling agents have added, carry out coupling processing, be specially first at 50 DEG C, 1h is stirred with the speed of 400r/min, diatomite and imvite is made fully to mix with coupling agent and carry out coupling processing, and then at 80 DEG C, with the speed high-speed stirred 20min of 800r/min, contribute to mixing and coupling processing further on the one hand, on the other hand cyclohexane is fully volatilized;
(3) batch mixings: add the TPU particle of 50 weight portions and the thermal reduction Graphene of the middle preparation of 1 weight portion step (1) in banbury, at 100 DEG C, under the condition of 50r/min, banburying mixing 5min, obtains mixed once base-material;
(4) rerolling: the TPU particle adding 50 weight portions in the banbury of step (3) again, make itself and described mixed once base-material at 100 DEG C, banburying mixing 5min under the condition of 50r/min, obtains secondary intermixture material; And then add the coupling modifier diatomite and imvite, at identical conditions discharging after banburying mixing 10min that obtain in 1 weight portion hindered phenol and 30 weight portion steps (2) wherein;
(5) extruding pelletization: by the mixed material double screw extruder that obtains in step (4) extruding pelletization under the extrusion temperature of the screw speed of 120r/min and 200 ~ 225 DEG C;
(6) injection mo(u)lding: by the pellet injection machine injection mo(u)lding obtained in step (5), obtain described heat-resistant damping and strengthen modified TPU composite, wherein, the screw speed of injection machine is 70r/min, and injection temperature is 200 ~ 225 DEG C.
The heat-resistant damping prepared described in said method strengthen modified TPU composite weightless 30% time heat decomposition temperature be 359 ~ 362 DEG C, compared with pure TPU material, its loss cutting edge of a knife or a sword moves to high temperature direction, and mechanical property improves 20 ~ 23%.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (6)

1. heat-resistant damping strengthens a preparation method for modified TPU composite, it is characterized in that, comprises the steps:
(1) prepare thermal reduction Graphene: under atmosphere of inert gases, in the Muffle furnace of 900 ~ 1000 DEG C, sinter 20 ~ 30s, then under atmosphere of inert gases, cool to room temperature with the furnace, obtain thermal reduction Graphene, for subsequent use;
(2) coupling modifier diatomite and imvite: diatomite and imvite are added in high-speed mixer in proportion and stirs and evenly mixs, then the silane coupler added for three times with cyclohexane dilution is divided, after high speed whip modified, vapor away cyclohexane, obtain coupling modifier diatomite and imvite;
(3) batch mixings: add the TPU particle of 50 weight portions and the thermal reduction Graphene of the middle preparation of 0.5 ~ 1 weight portion step (1) in banbury, banburying mixing 3 ~ 5min, obtains mixed once base-material;
(4) rerolling: the TPU particle adding 50 weight portions in the banbury of step (3) again, makes it mix 3 ~ 5min with the banburying of described mixed once base-material, obtains secondary intermixture material; And then add the coupling modifier diatomite and imvite that obtain in 1 ~ 3 weight portion hindered phenol and 30 ~ 40 weight portion steps (2) wherein, discharging after banburying mixing 5 ~ 10min;
(5) extruding pelletization: by the mixed material double screw extruder extruding pelletization obtained in step (4);
(6) injection mo(u)lding: by the pellet injection machine injection mo(u)lding obtained in step (5), obtains described heat-resistant damping and strengthens modified TPU composite.
2. heat-resistant damping according to claim 1 strengthens the preparation method of modified TPU composite, and it is characterized in that, in described step (2), the additional proportion of described diatomite and imvite is 3 ~ 5:2 ~ 3; The consumption of described silane coupler is 1/10 of described diatomite and imvite gross weight, and the dilution ratio of described silane coupler and cyclohexane is 1:50 ~ 100.
3. heat-resistant damping according to claim 1 strengthens the preparation method of modified TPU composite, and it is characterized in that, in described step (2), described modified condition is: first at 30 ~ 50 DEG C, stirs 1 ~ 2h with the speed of 400 ~ 600r/min; Again at 60 ~ 80 DEG C, stir 20 ~ 40 with the speed of 800 ~ 1000r/min.
4. heat-resistant damping according to claim 1 strengthens the preparation method of modified TPU composite, it is characterized in that, in described step (3) and (4), described banburying condition is: rotating speed 50 ~ 150r/min, temperature 80 ~ 100 DEG C.
5. heat-resistant damping according to claim 1 strengthens the preparation method of modified TPU composite, and it is characterized in that, in described step (5), the screw speed of described extruder is 100 ~ 120r/min, and extrusion temperature scope is 200 ~ 225 DEG C.
6. heat-resistant damping according to claim 1 strengthens the preparation method of modified TPU composite, and it is characterized in that, in described step (6), the screw speed of described injection machine is 50 ~ 70r/min, and injection temperature is 200 ~ 225 DEG C.
CN201510747789.1A 2015-11-06 2015-11-06 Preparing method for heat-resistant damping strengthened modified TPU composite material Pending CN105382992A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106213675A (en) * 2016-08-28 2016-12-14 杭州锴越新材料有限公司 Far infrared health care adjusts shoe pad and preparation method thereof
CN108329679A (en) * 2018-02-02 2018-07-27 江苏洛基木业有限公司 A kind of preparation method of solvent-free graphene electric-heating thin film
CN109181277A (en) * 2018-08-21 2019-01-11 瑞安市鸿日塑胶有限公司 A kind of biology base TPU material and preparation method thereof with high-fire resistance
CN110105600A (en) * 2019-04-26 2019-08-09 温州东润新材料科技有限公司 A kind of Forced Mixing preparation process of special synthesis TPU and particular particle size graphene

Citations (2)

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