CN109514800A - A kind of TPU flow liner film and preparation method thereof - Google Patents
A kind of TPU flow liner film and preparation method thereof Download PDFInfo
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- CN109514800A CN109514800A CN201811494500.XA CN201811494500A CN109514800A CN 109514800 A CN109514800 A CN 109514800A CN 201811494500 A CN201811494500 A CN 201811494500A CN 109514800 A CN109514800 A CN 109514800A
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- batch mixing
- tpu
- mixing segment
- flow liner
- liner film
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1634—Making multilayered or multicoloured articles with a non-uniform dispersion of the moulding material in the article, e.g. resulting in a marble effect
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to TPU membrane and its technical field of producing, more particularly to a kind of TPU flow liner film and preparation method thereof, TPU, colored thermoplastic material are mixed into resulting mixture, drying heating is carried out to the mixture, and segmentally heating is carried out to mixture by screw rod, mixture is squeezed eventually by screw head and is pushed to molding die, after molding die cooling and demolding, can be obtained the TPU membrane with flow liner effect.Present invention TPU membrane flow liner effect produced is good, and quality is clearly well-balanced, cheap, the popularization suitable for every field.
Description
Technical field
The present invention relates to TPU membrane and its technical field of producing more particularly to a kind of TPU flow liner film and its preparation sides
Method.
Background technique
TPU is the abbreviation of ThermoplasticUrethane, and Chinese is thermoplastic polyurethane elastomer, TPU be by
'-diphenylmethane diisocyanate (MDI), toluene di-isocyanate(TDI) (TDI) and the common reactive polymeric of macromolecular polyol, chain extender
Made of high molecular material.Its molecular structure is by '-diphenylmethane diisocyanate (MDI), toluene di-isocyanate(TDI) (TDI)
The hard block and '-diphenylmethane diisocyanate (MDI) that are obtained with chain extender reaction, toluene di-isocyanate(TDI) (TDI) and big
What the soft segment that molecular polylol reacts alternately was constituted.
Currently, TPU has been widely used with health care, electronic apparatus, industry and sport etc., with other plastics
The characteristics such as the incomparable intensity height of material, good toughness, wear-resisting, cold-resistant, oil resistant, water-fast, ageing-resistant, weatherability, while it
It is many excellent with high waterproofness penetrability, radix saposhnikoviae, cold-proof, antibacterial, mould proof, warming, uvioresistant and energy release etc.
Function.
With the raising and transformation of the estheticism of people, single tone product is not able to satisfy the aesthetic of people more
Demand, the i.e. two kinds of incompatible resins of its principle of surface flow liner effect are molded injection jointly, because its fusing point differs different with viscosity,
It causes dispersion unevenly to generate striped, the flow liner of surface imperfection occurs.
A kind of described justice, it is now desired to manufacture craft and to realize that production has the TPU membrane of surface flow liner effect
Summary of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, the present invention provides a kind of TPU membrane of the surface with flow liner, can complete to flow
Prepared by the TPU membrane of line, while can also change the flow liner ratio in flow liner TPU membrane according to demand.
(2) technical solution
In order to achieve the above object, the main technical schemes that the present invention uses include:
A kind of TPU flow liner film: it includes TPU membrane ontology, and the TPU membrane ontology is equipped with flow liner lines.
A kind of preparation method of TPU flow liner film:
TPU, colored thermoplastic material are mixed and enter screw rod injection molding by feeding device after resulting mixture is dried by step S1
In the gun barrel of machine,
Step S2, the resistance ring on the gun barrel heats mixture, after the screw rod of screw injection molding machine is to heating
Mixture is squeezed to molding die；
Step S3, demoulding obtains TPU flow liner film after the molding die is cooling.
Preferably, the weight ratio of the TPU, colored thermoplastic material are as follows: 1000:10-50, the TPU are 685AU, institute
Stating colored thermoplastic material is one of US silver powder, carbon dust, flow liner marble.
Preferably, the screw rod includes sequentially connected first batch mixing segment, the second batch mixing segment, third mixing from right to left
Section, first batch mixing segment, the second batch mixing segment, third batch mixing segment surface be equipped with along it is spiral yarn shaped at continuous protrusion, institute
The left end for stating screw rod is connected with screw head, the screw head be it is coniform, the screw head, which is equipped with, multiple crosses glue grooves, the electricity
Balk ring is located at the periphery of the first batch mixing segment, second batch mixing segment, the third batch mixing segment.
Preferably, the drying temperature in the step S1 is 80-100 DEG C, drying time 2-4h.
Preferably, the heating temperature in the step S3, the heating temperature of first batch mixing segment is 160-250 DEG C, institute
The heating temperature for stating the second batch mixing segment is 170-250 DEG C, the heating temperature of the third batch mixing segment is 180-250 DEG C.
Preferably, the squeeze pressure of the screw injection molding machine is 83-93kg/cm2, extrusion speed 20-30cm/s.
Preferably, the spiro rod length is 1440mm, and diameter is 38.5 ± 0.1mm, and the length of first batch mixing segment is
709mm, the spacing of surface screw thread are 63mm, and the spacing of first batch mixing segment and second batch mixing segment is 95mm, described the
The length of two batch mixing segments is 441mm, and the spacing of surface screw thread is 70mm, and the length of the third batch mixing segment is 195mm, surface spiral shell
The spacing of line is 63mm, and the length of the screw head is 229mm.
(3) beneficial effect
The beneficial effects of the present invention are: present invention TPU membrane flow liner effect produced is good, quality is clearly well-balanced, low cost
Honest and clean, suitable for every field popularization.
Detailed description of the invention
Fig. 1 is the production procedure schematic diagram of TPU flow liner film of the present invention；
Fig. 2 is the flow liner effective structure schematic diagram of the TPU flow liner film of the embodiment of the present invention 1；
Fig. 3 is the flow liner effective structure schematic diagram of the TPU flow liner film of the embodiment of the present invention 2；
Fig. 4 is the flow liner effective structure schematic diagram of the TPU flow liner film of the embodiment of the present invention 3.
[description of symbols]
1: feeding device；
2: screw injection molding machine；
21: gun barrel；
22: screw rod；
221: the first batch mixing segments；
222: the second batch mixing segments；
223: third batch mixing segment；
23: screw head；
3: molding die.
Specific embodiment
In order to preferably explain the present invention, in order to understand, with reference to the accompanying drawing, by specific embodiment, to this hair
It is bright to be described in detail.
Such as Fig. 1, the present invention provides a kind of technical solution:
A kind of TPU flow liner film: it includes TPU membrane ontology, and the TPU membrane ontology is equipped with flow liner lines.
A kind of preparation method of TPU flow liner film:
Step S1 passes through feeding device 1 into screw rod note after TPU, colored thermoplastic material are mixed resulting mixture drying
In the gun barrel 21 of molding machine 2,
Step S2, the resistance ring on the gun barrel 2 heat mixture, 22 pairs of screw rod heating of screw injection molding machine 2
Mixture afterwards is squeezed to molding die 3；
Step S3, demoulding obtains TPU flow liner film after the molding die 3 is cooling.
The weight ratio of the TPU, colored thermoplastic material are as follows: 1000:10-50, the TPU are 685AU, the coloured heat
Plastic material is one of US silver powder, carbon dust, flow liner marble.
The screw rod 22 includes sequentially connected first batch mixing segment 221, the second batch mixing segment 222, third mixing from right to left
Section 223, first batch mixing segment 221, the second batch mixing segment 222, third batch mixing segment 223 surface be equipped with along it is spiral yarn shaped at
Continuous protrusion, the left end of the screw rod 22 are connected with screw head 23, the screw head 23 be it is coniform, set on the screw head 23
There are multiple glue groove, the resistance rings to be excessively located at the first batch mixing segment 221, second batch mixing segment 222, the third batch mixing segment 223
Periphery.
Drying temperature in the step S1 is 80-100 DEG C, drying time 2-4h.
Heating temperature in the step S3, the heating temperature of first batch mixing segment 221 is 160-250 DEG C, described the
The heating temperature of two batch mixing segments 222 is 170-250 DEG C, the heating temperature of the third batch mixing segment 223 is 180-250 DEG C.
The squeeze pressure of the screw injection molding machine 2 is 83-93kg/cm2, extrusion speed 20-30cm/s.
22 length of screw rod is 1440mm, and diameter is 38.5 ± 0.1mm, and the length of first batch mixing segment 221 is
709mm, the spacing of surface screw thread are 63mm, and the spacing of first batch mixing segment 221 and second batch mixing segment 222 is 95mm,
The length of second batch mixing segment 222 is 441mm, and the spacing of surface screw thread is 70mm, and the length of the third batch mixing segment 223 is
195mm, the spacing of surface screw thread are 63mm, and the length of the screw head 23 is 229mm.
Embodiment 1
TPU, colored thermoplastic material are mixed after resulting mixture dries 3h under conditions of 80 DEG C and pass through charging by step S1
Device 1 enters in the gun barrel 21 of screw injection molding machine 2；
Step S2, the resistance ring on the gun barrel 2 heat mixture, 22 pairs of screw rod heating of screw injection molding machine 2
Mixture afterwards is squeezed to molding die 3；
Step S3, demoulding obtains TPU flow liner film after the molding die 3 is cooling.
The weight ratio of the TPU, colored thermoplastic material are as follows: 1000:35, the TPU are 685AU, the pigmented thermoplastic
Property material be flow liner marble in.
The screw rod 22 includes sequentially connected first batch mixing segment 221, the second batch mixing segment 222, third mixing from right to left
Section 223, first batch mixing segment 221, the second batch mixing segment 222, third batch mixing segment 223 surface be equipped with along it is spiral yarn shaped at
Continuous protrusion, the left end of the screw rod 22 are connected with screw head 23, screw head 23 be it is coniform, the screw head 23 is equipped with more
It is a cross glue groove, the resistance ring be located at the first batch mixing segment 221, second batch mixing segment 222, the third batch mixing segment 223 outside
It encloses, the heating temperature of first batch mixing segment 221 is 160 DEG C, the heating temperature of second batch mixing segment 222 is 170 DEG C, described
The heating temperature of third batch mixing segment 223 is 180 DEG C.
The squeeze pressure of the screw injection molding machine 2 is 83kg/cm2, extrusion speed 20cm/s.
2 length of screw rod is 1440mm, and diameter 38.5mm, the length of first batch mixing segment 221 is 709mm, table
The spacing of face screw thread is 63mm, and the spacing of first batch mixing segment 221 and second batch mixing segment 222 is 95mm, described second
The length of batch mixing segment 222 is 441mm, and the spacing of surface screw thread is 70mm, and the length of the third batch mixing segment 223 is 195mm, table
The spacing of face screw thread is 63mm, and the length of the screw head 23 is 229mm.
Embodiment 2
TPU, colored thermoplastic material are mixed after resulting mixture dries 3h under conditions of 80 DEG C and pass through charging by step S1
Device 1 enters in the gun barrel 21 of screw injection molding machine 2；
Step S2, the resistance ring on the gun barrel 2 heat mixture, 22 pairs of screw rod heating of screw injection molding machine 2
Mixture afterwards is squeezed to molding die 3；
Step S3, demoulding obtains TPU flow liner film after the molding die 3 is cooling.
The weight ratio of the TPU, colored thermoplastic material are as follows: 1000:25, the TPU are 685AU, the pigmented thermoplastic
Property material be flow liner marble in.
The screw rod 22 includes sequentially connected first batch mixing segment 221, the second batch mixing segment 222, third mixing from right to left
Section 223, first batch mixing segment 221, the second batch mixing segment 222, third batch mixing segment 223 surface be equipped with along it is spiral yarn shaped at
Continuous protrusion, the left end of the screw rod 22 are connected with screw head 23, screw head 23 be it is coniform, the screw head 23 is equipped with more
It is a cross glue groove, the resistance ring be located at the first batch mixing segment 221, second batch mixing segment 222, the third batch mixing segment 223 outside
It encloses, the heating temperature of first batch mixing segment 221 is 160 DEG C, the heating temperature of second batch mixing segment 222 is 170 DEG C, described
The heating temperature of third batch mixing segment 223 is 180 DEG C.
The squeeze pressure of the screw injection molding machine 2 is 83kg/cm2, extrusion speed 20cm/s.
2 length of screw rod is 1440mm, and diameter 38.5mm, the length of first batch mixing segment 221 is 709mm, table
The spacing of face screw thread is 63mm, and the spacing of first batch mixing segment 221 and second batch mixing segment 222 is 95mm, described second
The length of batch mixing segment 222 is 441mm, and the spacing of surface screw thread is 70mm, and the length of the third batch mixing segment 223 is 195mm, table
The spacing of face screw thread is 63mm, and the length of the screw head 23 is 229mm.
Embodiment 3
TPU, colored thermoplastic material are mixed after resulting mixture dries 3h under conditions of 80 DEG C and pass through charging by step S1
Device 1 enters in the gun barrel 21 of screw injection molding machine 2；
Step S2, the resistance ring on the gun barrel 2 heat mixture, 22 pairs of screw rod heating of screw injection molding machine 2
Mixture afterwards is squeezed to molding die 3；
Step S3, demoulding obtains TPU flow liner film after the molding die 3 is cooling.
The weight ratio of the TPU, colored thermoplastic material are as follows: 1000:25, the TPU are 685AU, the pigmented thermoplastic
Property material be flow liner marble in.
The screw rod 22 includes sequentially connected first batch mixing segment 221, the second batch mixing segment 222, third mixing from right to left
Section 223, first batch mixing segment 221, the second batch mixing segment 222, third batch mixing segment 223 surface be equipped with along it is spiral yarn shaped at
Continuous protrusion, the left end of the screw rod 22 are connected with screw head 23, screw head 23 be it is coniform, the screw head 23 is equipped with more
It is a cross glue groove, the resistance ring be located at the first batch mixing segment 221, second batch mixing segment 222, the third batch mixing segment 223 outside
It encloses, the heating temperature of first batch mixing segment 221 is 160 DEG C, the heating temperature of second batch mixing segment 222 is 170 DEG C, described
The heating temperature of third batch mixing segment 223 is 180 DEG C.
The squeeze pressure of the screw injection molding machine 2 is 83kg/cm2, extrusion speed 20cm/s.
2 length of screw rod is 1440mm, and diameter 38.5mm, the length of first batch mixing segment 221 is 709mm, table
The spacing of face screw thread is 63mm, and the spacing of first batch mixing segment 221 and second batch mixing segment 222 is 95mm, described second
The length of batch mixing segment 222 is 441mm, and the spacing of surface screw thread is 70mm, and the length of the third batch mixing segment 223 is 195mm, table
The spacing of face screw thread is 63mm, and the length of the screw head 23 is 229mm.
Comparative example 1, embodiment 2, Fig. 1, Fig. 2 are it can be seen that the flow liner effect of TPU flow liner film caused by the present invention
Area changes with the variation of TPU and colored thermoplastic material's weight ratio；Comparative example 2, embodiment 3, Fig. 2, Fig. 3 can be obtained
Although knowing that TPU flow liner film caused by the present invention produces under identical parameter, different flow liner effects can be also generated；This
Invention is molded injection using two kinds of incompatible resins jointly, causes dispersion uneven and generates striped, surface imperfection occurs
Flow liner, meet people to the aesthetic requirement of complicated tone product.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of TPU flow liner film, it is characterised in that: it includes TPU membrane ontology, and the TPU membrane ontology is equipped with flow liner lines.
2. the preparation method of TPU flow liner film as described in claim 1, it is characterised in that:
Step S1 passes through feeding device (1) into screw rod injection molding after TPU, colored thermoplastic material are mixed resulting mixture drying
In the gun barrel (21) of machine (2),
Step S2, the resistance ring on the gun barrel (2) heat mixture, and the screw rod (22) of screw injection molding machine (2) is to adding
Mixture after heat is squeezed to molding die (3)；
Step S3, demoulding obtains TPU flow liner film after the molding die (3) is cooling.
3. the preparation method of TPU flow liner film as claimed in claim 2, it is characterised in that: the TPU, colored thermoplastic material
Weight ratio are as follows: 1000:10-50, the TPU be 685AU, the colored thermoplastic material be US silver powder, carbon dust, flow liner Dali
One of stone.
4. the preparation method of TPU flow liner film as claimed in claim 2, it is characterised in that: the screw rod (22) include from the right side to
Left sequentially connected first batch mixing segment (221), the second batch mixing segment (222), third batch mixing segment (223), first batch mixing segment
(221), the second batch mixing segment (222), third batch mixing segment (223) surface be equipped with along it is spiral yarn shaped at continuous protrusion, it is described
The left end of screw rod (22) is connected with screw head (23), the screw head (23) be it is coniform, the screw head (23) be equipped with it is more
A to cross glue groove, the resistance ring is located at the first batch mixing segment (221), second batch mixing segment (222), the third batch mixing segment
(223) periphery.
5. the preparation method of TPU flow liner film as claimed in claim 2, it is characterised in that: the drying temperature in the step S1
It is 80-100 DEG C, drying time 2-4h.
6. the preparation method of TPU flow liner film as claimed in claim 2, it is characterised in that: the heating temperature in the step S3,
The heating temperature of first batch mixing segment (221) is 160-250 DEG C, the heating temperature of second batch mixing segment (222) is 170-
250 DEG C, the heating temperature of the third batch mixing segment (223) be 180-250 DEG C.
7. the preparation method of TPU flow liner film as claimed in claim 2, it is characterised in that: the extruding of the screw injection molding machine (2)
Pressure is 83-93kg/cm2, extrusion speed 20-30cm/s.
8. the preparation method of TPU casting films as claimed in claim 4, it is characterised in that: screw rod (22) length is
1440mm, diameter are 38.5 ± 0.1mm, and the length of first batch mixing segment (221) is 709mm, and the spacing of surface screw thread is
The spacing of 63mm, first batch mixing segment (221) and second batch mixing segment (222) is 95mm, second batch mixing segment (222)
Length be 441mm, the spacing of surface screw thread is 70mm, and the length of the third batch mixing segment (223) is 195mm, surface screw thread
Spacing be 63mm, the length of the screw head (23) is 229mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494500.XA CN109514800A (en) | 2018-12-07 | 2018-12-07 | A kind of TPU flow liner film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494500.XA CN109514800A (en) | 2018-12-07 | 2018-12-07 | A kind of TPU flow liner film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN109514800A true CN109514800A (en) | 2019-03-26 |
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ID=65795219
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811494500.XA Pending CN109514800A (en) | 2018-12-07 | 2018-12-07 | A kind of TPU flow liner film and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112778750A (en) * | 2021-01-26 | 2021-05-11 | 东莞汉星鞋材有限公司 | Material for flow pattern shoes and preparation method thereof |
| CN114290601A (en) * | 2021-12-16 | 2022-04-08 | 东莞市荣晟颜料有限公司 | Injection nozzle of forming machine and injection forming machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615794A (en) * | 2012-04-04 | 2012-08-01 | 荆州龙海塑胶机械有限公司 | Injection unit special for injection molding machine for marbled plastic product |
-
2018
- 2018-12-07 CN CN201811494500.XA patent/CN109514800A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615794A (en) * | 2012-04-04 | 2012-08-01 | 荆州龙海塑胶机械有限公司 | Injection unit special for injection molding machine for marbled plastic product |
Non-Patent Citations (3)
| Title |
|---|
| 卢鸣: "《塑料门窗实用手册》", 31 January 2000, 中国轻工业出版社 * |
| 山西省化工研究所: "《聚氨酯弹性体手册》", 31 January 2001, 化学工业出版社 * |
| 温志远，牟志平，陈国金: "《塑料成型工艺及设备》", 30 November 2012, 北京理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112778750A (en) * | 2021-01-26 | 2021-05-11 | 东莞汉星鞋材有限公司 | Material for flow pattern shoes and preparation method thereof |
| CN114290601A (en) * | 2021-12-16 | 2022-04-08 | 东莞市荣晟颜料有限公司 | Injection nozzle of forming machine and injection forming machine |
| CN114290601B (en) * | 2021-12-16 | 2024-04-12 | 广东荣晟智造有限公司 | Injection nozzle of molding machine and injection molding machine |
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