CN106393726A - Method for constructing shape-controllable strip-shaped micro structure on surface of elastomer PDMS (polydimethylsiloxane) - Google Patents
Method for constructing shape-controllable strip-shaped micro structure on surface of elastomer PDMS (polydimethylsiloxane) Download PDFInfo
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- CN106393726A CN106393726A CN201610866748.9A CN201610866748A CN106393726A CN 106393726 A CN106393726 A CN 106393726A CN 201610866748 A CN201610866748 A CN 201610866748A CN 106393726 A CN106393726 A CN 106393726A
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- pdms
- prepolymer solution
- linking agent
- performed polymer
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Classifications
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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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
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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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/22—Making multilayered or multicoloured articles
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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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
Abstract
The invention discloses a method for constructing a shape-controllable strip-shaped micro structure on the surface of elastomer PDMS (polydimethylsiloxane). The method comprises the steps of mixing and stirring PDMS prepolymers with a cross linking agent for 15 to 30 minutes to obtain a PDMS prepolymer solution A, pouring the PDMS prepolymer solution A into a mold, and after carrying out vacuum degassing for 1 to 2 hours, carrying out curing for 5 to 10 hours at the temperature of 50 to 70 DEG C to obtain a PDMS thin film with the thickness of 2 to 5 mm; mixing and stirring PDMS prepolymers with the cross linking agent for 15 to 30 minutes to obtain a PDMS prepolymer solution B, smearing the PDMS prepolymer solution B on the PDMS thin film through spinning to form a PDMS ultrathin film with the thickness of 0.1 to 1 micrometer, and obtaining a PDMS composite double-layer structure, wherein the mass ratios of the prepolymers to the cross linking agent in the PDMS prepolymer solution A and the PDMS prepolymer solution B are respectively (9 to 15) to 1 and (15 to 25) to 1 or (15 to 25) to 1 and (9 to 15) to 1; and carrying out uniaxial drawing on the obtained PDMS composite double-layer structure at the drawing ratio of 35 to 60%, carrying out curing for 2.5 to 3.5 hours at the temperature of 50 to 70 DEG C, and releasing stress at the speed of 5 mm/min till the stress is zero.
Description
Technical field
The present invention relates to a kind of processing method of polymer micro-structural, especially one kind do not change surface of elastomer chemistry knot
Structure, simple to operate, with low cost in elastomer PDMS（Polymethyl siloxane）The micro- knot of striated of surface construction morphology controllable
The method of structure.
Background technology
At present, surface micro-structure is widely used in fields such as optics, microelectronics, sensor, biomedicines.Existing
The conventional simple and easy method that non-etching realizes surface micro-structure is had to have two kinds：One kind is based on soft or hard composite two layer structure system（Under
Layer is thicker soft elastic substrates, and upper strata is relatively thin hard film）, when system stretching release returns to original state, due to
The difference of soft or hard layer elastic modelling quantity, leads to produce stress in interface, surface will discharge stress with striped, thus forming striped
Shape micro structure.After elastomer PDMS is processed through oxygen plasma or ozone-ultraviolet, produce SiOx on elastomer PDMS surface
Hard formation, forms soft or hard composite two layer structure system, and drawn discharges and then produces micro structure on SiOx hard formation surface.The method is grasped
Make complicated, high cost, and the chemical constitution on PDMS surface also there occurs change.Still an alternative is that being carried out using template etc.
Micro- pattern transfer, to form micro structure in material surface.Although the method does not change material surface chemical constitution, still suffer from
The problems such as operating process is loaded down with trivial details, the demoulding is difficult, the transfer of micro- pattern is imperfect.
Content of the invention
The present invention is to solve the problems referred to above existing for prior art, providing one kind not change surface of elastomer chemistry
Structure, simple to operate, with low cost in elastomer PDMS（Polymethyl siloxane）The method of surface construction striated micro structure.
The technical solution of the present invention is：A kind of method in elastomer PDMS surface construction striated micro structure, its
It is characterised by carrying out in accordance with the following steps successively：
A. PDMS performed polymer and cross-linking agent mix and blend is taken to obtain PDMS prepolymer solution A within 15 ~ 30 minutes, by PDMS performed polymer
Solution A is poured in mould, and vacuum outgass solidify 5-10 hour in 1 ~ 2 hour at 50 ~ 70 DEG C, obtain the thick PDMS of 2 ~ 5 mm
Thin film；PDMS performed polymer and cross-linking agent mix and blend is taken to obtain PDMS prepolymer solution B within 15 ~ 30 minutes, by PDMS performed polymer again
Solution B is spin-coated on 0.1 ~ 1 micron of thick PDMS ultrathin membrane of formation on PDMS film, obtains PDMS composite two layer structure；Described
PDMS prepolymer solution A is respectively 9 ~ 15 with the mass ratio of performed polymer in PDMS prepolymer solution B and cross-linking agent：1、15~25：1
Or 15 ~ 25：1、9~15：1；
B. uniaxial tension is carried out to the PDMS composite two layer structure obtaining, stretch ratio is 35 ~ 60%, solidify at 50 ~ 70 DEG C
2.5 ~ 3.5 hours, then stress is discharged with the speed of 5mm/min, until stress is zero.
The present invention is different from cross-linking agent proportioning using PDMS performed polymer, produces soft or hard composite two layer structure system, and then
Go out striated micro structure in elastomer PDMS surface construction, process without oxygen plasma or ozone-ultraviolet, enter without template
Row micro- pattern transfer, simple to operate, low cost and do not change PDMS surface chemical structure, it is suitable for batch production.Especially this
Bright micro structure can be adjusted by PDMS performed polymer and cross-linking agent proportioning, the thickness of soft or hard composite double layer and level of stretch etc.
Cycle, that is, realize the striated micro structure in PDMS surface construction morphology controllable.
Brief description
Fig. 1 is the Microstructure Optics microscope photograph prepared by the embodiment of the present invention 1.
Fig. 2 is the Microstructure Optics microscope photograph prepared by the embodiment of the present invention 2.
Specific embodiment
Embodiment 1：
A. by PDMS performed polymer and cross-linking agent in mass ratio for 9:1 mix and blend 20 minutes obtains PDMS prepolymer solution A, will
PDMS prepolymer solution A is poured in mould, and vacuum outgass solidify 10 hours at 50 DEG C for 2 hours, obtains the thick PDMS of 2 mm
Thin film；PDMS performed polymer and cross-linking agent is taken to be 15 in mass ratio:1 mix and blend 20 minutes obtains PDMS prepolymer solution B, will
PDMS prepolymer solution B is spin-coated on and forms about 0.1 micron of thick PDMS ultrathin membrane on PDMS film, obtains PDMS composite double layer knot
Structure；
B. uniaxial tension is carried out to the PDMS composite two layer structure obtaining, stretch ratio is 35%（（Before length-stretching after stretching
Length）Length before/stretching）, solidify 3.5 hours at 50 DEG C, then stress discharged with the speed of 5mm/min, until stress is zero
（Recover to original state）.
The optical microscope picture of the PDMS surface micro-structure obtaining is as shown in Figure 1.
Embodiment 2：
A. by PDMS performed polymer and cross-linking agent in mass ratio for 25:1 mix and blend 20 minutes obtains PDMS prepolymer solution A, will
PDMS prepolymer solution A is poured in mould, and vacuum outgass solidify 5 hours at 70 DEG C for 2 hours, obtains the thick PDMS of 5 mm
Thin film；PDMS performed polymer and cross-linking agent is taken to be 15 in mass ratio:1 mix and blend 20 minutes obtains PDMS prepolymer solution B, will
PDMS prepolymer solution B is spin-coated on and forms about 1 micron of thick PDMS ultrathin membrane on PDMS film, obtains PDMS composite double layer knot
Structure；
B. uniaxial tension is carried out to the PDMS composite two layer structure obtaining, stretch ratio is 60%（（Before length-stretching after stretching
Length）Length before/stretching）, solidify 2.5 hours at 70 DEG C, then stress discharged with the speed of 5 mm/min, until stress is zero
（Recover to original state）.
The optical microscope picture of the PDMS surface micro-structure obtaining is as shown in Figure 2.
Claims (1)
1. a kind of method of the striated micro structure in elastomer PDMS surface construction morphology controllable it is characterised in that successively according to
Following steps are carried out：
A. PDMS performed polymer and cross-linking agent mix and blend is taken to obtain PDMS prepolymer solution A within 15 ~ 30 minutes, by PDMS performed polymer
Solution A is poured in mould, and vacuum outgass solidify 5-10 hour in 1 ~ 2 hour at 50 ~ 70 DEG C, obtain the thick PDMS of 2 ~ 5 mm
Thin film；PDMS performed polymer and cross-linking agent mix and blend is taken to obtain PDMS prepolymer solution B within 15 ~ 30 minutes, by PDMS performed polymer again
Solution B is spin-coated on 0.1 ~ 1 micron of thick PDMS ultrathin membrane of formation on PDMS film, obtains PDMS composite two layer structure；Described
PDMS prepolymer solution A is respectively 9 ~ 15 with the mass ratio of performed polymer in PDMS prepolymer solution B and cross-linking agent：1、15~25：1
Or 15 ~ 25：1、9~15：1；
B. uniaxial tension is carried out to the PDMS composite two layer structure obtaining, stretch ratio is 35 ~ 60%, solidify at 50 ~ 70 DEG C
2.5 ~ 3.5 hours, then stress is discharged with the speed of 5mm/min, until stress is zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866748.9A CN106393726B (en) | 2016-09-30 | 2016-09-30 | In the method for the striated micro-structure of elastomer PDMS surface construction morphology controllable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866748.9A CN106393726B (en) | 2016-09-30 | 2016-09-30 | In the method for the striated micro-structure of elastomer PDMS surface construction morphology controllable |
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| Publication Number | Publication Date |
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| CN106393726A true CN106393726A (en) | 2017-02-15 |
| CN106393726B CN106393726B (en) | 2019-03-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270046A (en) * | 2018-08-30 | 2019-01-25 | 东南大学 | A kind of construction method of the controllable micro-nano array based on gold and silver nano brick and its application |
| WO2022227852A1 (en) * | 2021-04-28 | 2022-11-03 | 太原理工大学 | Three-dimensionally arranged nanoparticle film having array structure, preparation method therefor and application thereof |
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| CN102794904A (en) * | 2012-07-13 | 2012-11-28 | 天津大学 | Preparation method and application of PDMS (polydimethylsiloxane) surface double-layer selected area wrinkle |
| CN103009534A (en) * | 2012-12-19 | 2013-04-03 | 中国科学院上海微***与信息技术研究所 | Method for manufacturing polydimethylsiloxane (PDMS) film with integrated microstructure |
| CN104671198A (en) * | 2015-02-03 | 2015-06-03 | 天津大学 | Method for preparing stripe-shaped micro-nanometer wrinkle structure by using electron beam induction method |
| CN104692321A (en) * | 2015-02-03 | 2015-06-10 | 天津大学 | Method for preparing ordered porous film in orthogonal embossing induction manner |
| CN105699703A (en) * | 2016-01-26 | 2016-06-22 | 天津大学 | A method for measuring light softening of an azobenzene thin film through utilization of surface wrinkling |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794904A (en) * | 2012-07-13 | 2012-11-28 | 天津大学 | Preparation method and application of PDMS (polydimethylsiloxane) surface double-layer selected area wrinkle |
| CN103009534A (en) * | 2012-12-19 | 2013-04-03 | 中国科学院上海微***与信息技术研究所 | Method for manufacturing polydimethylsiloxane (PDMS) film with integrated microstructure |
| CN104671198A (en) * | 2015-02-03 | 2015-06-03 | 天津大学 | Method for preparing stripe-shaped micro-nanometer wrinkle structure by using electron beam induction method |
| CN104692321A (en) * | 2015-02-03 | 2015-06-10 | 天津大学 | Method for preparing ordered porous film in orthogonal embossing induction manner |
| CN105699703A (en) * | 2016-01-26 | 2016-06-22 | 天津大学 | A method for measuring light softening of an azobenzene thin film through utilization of surface wrinkling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109270046A (en) * | 2018-08-30 | 2019-01-25 | 东南大学 | A kind of construction method of the controllable micro-nano array based on gold and silver nano brick and its application |
| WO2022227852A1 (en) * | 2021-04-28 | 2022-11-03 | 太原理工大学 | Three-dimensionally arranged nanoparticle film having array structure, preparation method therefor and application thereof |
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| CN106393726B (en) | 2019-03-05 |
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