TWI588011B - Shaping product of thermal shape memory material - Google Patents
Shaping product of thermal shape memory material Download PDFInfo
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- TWI588011B TWI588011B TW103143731A TW103143731A TWI588011B TW I588011 B TWI588011 B TW I588011B TW 103143731 A TW103143731 A TW 103143731A TW 103143731 A TW103143731 A TW 103143731A TW I588011 B TWI588011 B TW I588011B
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- 239000012781 shape memory material Substances 0.000 title description 21
- 238000007493 shaping process Methods 0.000 title description 11
- 229920000431 shape-memory polymer Polymers 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 28
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- 230000008859 change Effects 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 229920001610 polycaprolactone Polymers 0.000 description 6
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- 229920000647 polyepoxide Polymers 0.000 description 2
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- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
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Description
本發明是有關於一種方法及產品，特別是指一種熱致形狀記憶材料之塑形方法及以該方法成型的產品。 The present invention relates to a method and product, and more particularly to a method of shaping a heat-induced shape memory material and a product formed by the method.
近年來隨著科技的進步，人類對於材料功能的需求逐漸增加，因此新型功能性材料是目前熱門的研究課題之一。當中，智能材料(Smart Material)是一種可依照外在環境的改變，同時能進行自我調節，並透過產品設計達到智慧化效果，例如：保險絲就是一種可以感應電流的智能材料。 In recent years, with the advancement of science and technology, human demand for material functions has gradually increased, so new functional materials are one of the hot research topics. Among them, Smart Material is a kind of intelligent material that can change according to the external environment, and can adjust itself and achieve intelligent effect through product design. For example, a fuse is a kind of smart material that can induce current.
其中，又以形狀記憶高分子材料的研究及運用最為廣泛，而當中之熱致形狀記憶材料被拿來研究，也已運用於不同產業的發展上，主要原因是熱致形狀記憶高分子材料具有熱源容易控制、樣式變化多樣性及市場價格較具競爭力等多種商業優勢。 Among them, shape memory polymer materials are the most widely studied and used, and the heat-induced shape memory materials have been used for research and development in different industries. The main reason is that the heat-induced shape memory polymer materials have There are many commercial advantages such as easy control of heat source, diversity of style changes and competitive market prices.
上述之熱致形狀記憶材料經成形加工後，就會擁有初始形狀(初始態)，當材料接收到外在能量(如熱能、電能等)時，可使其形狀產生改變，若這時移除外在能量，則能使材料暫時處於變形的形狀(變形態)，之後當再次施加相同的外在能量時，就可使材料回復成初始形狀。而這種可在初始態與變形態之間轉換的能力就是「形狀記憶效應」。 The above-mentioned heat-induced shape memory material has an initial shape (initial state) after being shaped, and when the material receives external energy (such as heat energy, electric energy, etc.), the shape thereof may be changed, and if it is removed at this time At the energy, the material can be temporarily deformed (morphed), and then when the same external energy is applied again, the material can be restored to its original shape. The ability to switch between the initial state and the variant is the "shape memory effect."
早期，該熱致形狀記憶材料在國內並無相關研究及生產，以進口為主。近年來塑膠中心已規劃協助部份廠商開始進行智能材料的發展，以脫離無原料的窘境， 此外，目前熱致形狀記憶材料之製程技術是以沿用傳統塑膠成型的技術，例如：塑膠射出、壓出、發泡級塗佈的方式來建構初始形狀。但是，傳統的塑膠成型必須使用模具，且模具會限制塑膠成型之形狀。 In the early days, the heat-induced shape memory materials were not related to research and production in China, and were mainly imported. In recent years, the Plastics Center has planned to assist some manufacturers to start the development of smart materials, in order to break away from the dilemma of no raw materials. In addition, the current process technology of the heat-induced shape memory material is to construct the initial shape by using conventional plastic molding techniques such as plastic injection, extrusion, and foaming level coating. However, traditional plastic molding must use a mold, and the mold will limit the shape of the plastic molding.
此外，請參閱圖1，為傳統之手持起子工具1，其具有一十字起子頭2及一手握桿3，當該十字起子頭2與一螺絲a之紋路接觸且密合在一起時，可旋動該手握桿3將該螺絲a旋入一牆壁b中。 In addition, please refer to FIG. 1 , which is a conventional hand-held screwdriver tool 1 having a cross screwdriver head 2 and a hand grip 3 which can be rotated when the cross screwdriver head 2 is in contact with and tightly connected to the thread of a screw a. The grip bar 3 is rotated to screw the screw a into a wall b.
由於目前市面上已有十字及一字螺紋的螺絲，加上有許多廠商推出不同螺紋之防盜螺絲，造成使用者必須針對每一種螺絲購買合適的手持起子工具，而造成使用者的困擾，如何將傳統之手持起子工具與熱致形狀記憶材料進行結合，且能將該熱致形狀記憶材料之產品製作成易於變形之結構形狀，不可被模具給限制住，確實有必要加以改善。 Since there are currently cross-shaped and one-threaded screws on the market, and many manufacturers have introduced anti-theft screws with different threads, users must purchase suitable hand-held screwdriver tools for each type of screw, causing user confusion and how to The conventional hand-held screwdriver tool is combined with the heat-induced shape memory material, and the product of the heat-induced shape memory material can be made into an easily deformable structural shape, which cannot be restricted by the mold, and it is indeed necessary to improve.
有鑑於此，本發明之一目的，是在提供一種熱致形狀記憶材料之塑型方法，包含一備製步驟、一第一加熱步驟、一三維堆疊成型步驟、一第二加熱步驟，及一塑型步驟。 In view of the above, an object of the present invention is to provide a method for molding a thermotropic shape memory material, comprising a preparation step, a first heating step, a three-dimensional stack forming step, a second heating step, and a Molding step.
首先，進行該備製步驟，準備複數形狀記憶高分子材料。接著，進行該第一加熱步驟，將該複數形狀記憶高分子材料加熱至溶熔狀態。然後，進行該三維堆疊成型步驟，利用一3D列表機堆疊建構出一第一形態體。接著，進行該第二加熱步驟，對該第一型態體加熱。最後，進行該塑型步驟，將加熱後的第一型態體加壓塑型成第二型態體。 First, the preparation step is carried out to prepare a plurality of shape memory polymer materials. Next, the first heating step is performed to heat the plurality of shape memory polymer materials to a molten state. Then, the three-dimensional stack forming step is performed, and a first morph body is constructed by stacking a 3D list machine. Next, the second heating step is performed to heat the first type of body. Finally, the molding step is performed to pressurize the heated first type body into a second type body.
本發明的另一技術手段，是在於熱致形狀記憶材料之塑型方法更包含一還原步驟，再次對該第二型態 體進行加熱，並靜置使其自動回復成第一型態體。 Another technical means of the present invention is that the molding method of the thermally induced shape memory material further comprises a reduction step, and the second type is again The body is heated and allowed to stand to automatically return to the first form.
本發明的又一技術手段，是在於在該備製步驟中所準備之材料是選自於聚酯系統、環氧樹脂系統、聚氨酯系統、聚烯烴系統、聚醯胺系統，及此等之組合。 Another technical means of the present invention is that the material prepared in the preparation step is selected from the group consisting of a polyester system, an epoxy resin system, a polyurethane system, a polyolefin system, a polyamide system, and the like. .
本發明的再一技術手段，是在於該第一加熱步驟之加熱溫度範圍為150℃~300℃。 Still another technical means of the present invention is that the heating temperature in the first heating step ranges from 150 ° C to 300 ° C.
本發明之另一技術手段，是在於該第二加熱步驟之加熱溫度範圍為60℃~120℃。 Another technical means of the present invention is that the heating temperature in the second heating step ranges from 60 ° C to 120 ° C.
本發明的又一技術手段，是在於該第二加熱步驟是將該第一型態體浸泡於100℃的熱水中。 Another technical means of the present invention is that the second heating step is to soak the first type body in hot water at 100 °C.
本發明的再一技術手段，是在於該塑型步驟中，是當該第一型態體加熱後尚未冷卻前，直接加壓塑造出使用者想要的形狀。 A further technical means of the present invention is that in the molding step, the first type of body is directly pressurized to shape the shape desired by the user before it is heated.
本發明之另一目的，是在提供一種形狀記憶產品，包含一公件，及一母件。該母件可配合該公件形狀而組接在一起，該公件及該母件其中之一或其組合是以聚環己內酯(Polycaprolactone,PCL)之材料所製成。。 Another object of the present invention is to provide a shape memory product comprising a male member and a female member. The female member may be assembled together with the shape of the male member, and one or a combination of the male member and the female member is made of a material of polycaprolactone (PCL). .
本發明的又一技術手段，是在於該母件是一螺絲。 Yet another technical means of the present invention is that the female member is a screw.
本發明的再一技術手段，是在於該公件是一起子。 Still another technical means of the present invention is that the male members are together.
本發明之有益功效在於，將目前具有熱致形形狀記憶高分子材料加熱至溶熔狀態時，使用可製作複雜形體之3D列表機在溶熔狀態下以堆疊的方式建構出該第一形態體，且該第一形態體為該形狀記憶高分子材料之記憶形體。當需要改變該第一形態體之形狀時，進行該第二加熱步驟，此時，不需要加熱至太高的溫度即可將加熱的第一形態體加壓塑型成第二型態體。 The beneficial effect of the present invention is that when the current shape-memory polymer material having a heat-induced shape is heated to a molten state, the first morphological body is constructed in a stacked state by using a 3D list machine capable of producing a complex shape in a molten state. And the first morphological body is a memory shape of the shape memory polymer material. When it is necessary to change the shape of the first morph, the second heating step is performed. At this time, the heated first morph can be press-formed into the second form without heating to a temperature that is too high.
901~906‧‧‧步驟 901~906‧‧ steps
3‧‧‧公件 3‧‧‧Male
31‧‧‧手握主體 31‧‧‧ Holding the subject
32‧‧‧起子頭 32‧‧‧Starter head
4‧‧‧母件 4‧‧‧Female parts
41‧‧‧螺紋主體 41‧‧‧Threaded body
42‧‧‧螺絲頭 42‧‧‧ screw head
43‧‧‧紋路 43‧‧‧ texture
44‧‧‧保護層 44‧‧‧Protective layer
5‧‧‧熱水 5‧‧‧ hot water
圖1是一裝置示意圖，說明傳統手持起子工具；圖2是一方塊示意圖，說明本發明熱致形狀記憶材料之塑形方法及以該方法成型的產品之第一較佳實施例；圖3是一裝置示意圖，說明本發明熱致形狀記憶材料之塑形方法及以該方法成型的產品之第二較佳實施例；及圖4是一裝置示意圖，說明本發明熱致形狀記憶材料之塑形方法及以該方法成型的產品之第三較佳實施例。 1 is a schematic view of a conventional hand-held screwdriver tool; FIG. 2 is a block diagram showing a method of shaping a thermally induced shape memory material of the present invention and a first preferred embodiment of the product formed by the method; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 4 is a schematic view showing a method of shaping a thermally induced shape memory material of the present invention and a second preferred embodiment of the product formed by the method; and FIG. 4 is a schematic view of the apparatus for shaping the heat-induced shape memory material of the present invention; A method and a third preferred embodiment of the product formed by the method.
有關於本發明之相關申請專利特色與技術內容，在以下配合參考圖式之三個較佳實施例的詳細說明中，將可清楚的呈現。 The details of the related patents and the technical contents of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings.
在進行詳細說明前應注意的是，類似的元件是以相同的編號來作表示。 It should be noted that, before the detailed description, similar elements are denoted by the same reference numerals.
參閱圖2，為本發明熱致形狀記憶材料之塑形方法及以該方法成型的產品的第一較佳實施例，包括一備製步驟901、一第一加熱步驟902、一三維堆疊成型步驟903、一第二加熱步驟904、一塑型步驟905，及一還原步驟906。 Referring to FIG. 2, a first preferred embodiment of a method for shaping a heat-induced shape memory material of the present invention and a product formed by the method includes a preparation step 901, a first heating step 902, and a three-dimensional stack molding step. 903, a second heating step 904, a molding step 905, and a reduction step 906.
首先，進行該備製步驟901，準備複數形狀記憶高分子材料，其形狀記憶高分子材料是選自於聚酯系統、環氧樹脂系統、聚氨酯系統、聚烯烴系統、聚醯胺系統，及此等之組合。其材料形態可以是顆粒狀、粉末狀或是線條狀等方式，實際實施時，必須搭配使用機台的種類，及產品的用途，來選擇材料之來源。 First, the preparation step 901 is performed to prepare a plurality of shape memory polymer materials, and the shape memory polymer material is selected from the group consisting of a polyester system, an epoxy resin system, a polyurethane system, a polyolefin system, a polyamine system, and the like. A combination of the same. The material form can be granular, powder or line. In actual implementation, the type of material must be selected in conjunction with the type of machine used and the purpose of the product.
傳統的塑膠材料是由線形分子鏈所構成，由於分子鏈之間沒有共價鍵的束縛，因此可重複以加熱熔融的方式重新塑造。而本發明所使用之形狀記憶高分子材料是由立體的網狀分子鏈所構成，由於這些分子鏈有類似鑽 石的三度空間結構，因此擁有不易溶解、不能熔融的特性，以致無法利用低溫加熱來改變形狀。 The traditional plastic material is composed of linear molecular chains. Since there is no covalent bond between the molecular chains, it can be reshaped by heating and melting. The shape memory polymer material used in the present invention is composed of three-dimensional network molecular chains, since these molecular chains have similar drills. The three-dimensional structure of the stone has the property of being insoluble and incapable of melting, so that it is impossible to change the shape by low-temperature heating.
此外，智能材料(Smart Material)也區分為熱致型形狀記憶高分子、電致型形狀記憶高分子、光致型形狀記憶高分子、化學感應型形狀記憶高分子等多種記憶材料的種類，該第一較佳實施例之形狀記憶高分子材料使用熱致型形狀記憶高分子，本發明使用熱致型形狀記憶高分子來做使用，其實際實施時，也可以使用其他材質，或與其他智能材料搭配使用，來運用於各種用途及場合，不應以此為限。 In addition, smart materials are also classified into a variety of memory materials such as a thermally induced shape memory polymer, an electroformed shape memory polymer, a photoinduced shape memory polymer, and a chemically induced shape memory polymer. The shape memory polymer material of the first preferred embodiment uses a thermally induced shape memory polymer, and the present invention uses a heat-induced shape memory polymer for use. In actual implementation, other materials may be used, or other intelligent materials may be used. The materials used in combination for various purposes and occasions should not be limited to this.
接著，進行該第一加熱步驟902，將該複數熱致形狀記憶高分子材料加熱到溶熔狀態，用以將該熱致形狀記憶高分子材料中的分子鏈以較高的能量鍵離，使處於該溶熔狀態之熱致形狀記憶高分子材料中的分子可以自由移動，並依照不同種類的形狀記憶高分子材料選擇較佳的第一加熱溫度給與其可打斷其分子鏈的能量，其溫度大約在150℃~300℃，能量溫度太低會造成複數分子彼此間的分子鏈無法打斷，而能量溫度太高則會造成材料改變。 Then, the first heating step 902 is performed to heat the plurality of thermosensitive shape memory polymer materials to a molten state for binding the molecular chains in the thermotropic shape memory polymer material with a high energy. The molecules in the heat-induced shape memory polymer material in the molten state can move freely, and select a preferred first heating temperature according to different kinds of shape memory polymer materials to give energy which can interrupt the molecular chain thereof, The temperature is about 150 ° C ~ 300 ° C, the energy temperature is too low will cause the molecular chains of the complex molecules can not be broken, and the energy temperature is too high will cause the material to change.
然後，進行該三維堆疊成型步驟903，利用一3D列表機堆疊建構出一第一形態體，較佳地，該第一加熱步驟之加熱器設置在該3D列表機之噴頭上方，使該3D列表機之噴頭確實可取得該溶熔狀態之熱致形狀記憶高分子材料，並從該第一形態體之底部，以堆疊的方式一層一層向上堆疊成形，並在成形時該熱致形狀記憶高分子材料中的分子彼此間經由共價鍵開始進行鍵結，使該第一形態體完成時，其中形狀記憶高分子材料之複數分子彼此間鍵結住，以形成智能材料之初始態。 Then, the three-dimensional stack forming step 903 is performed, and a first morph body is constructed by using a 3D lister stack. Preferably, the heater of the first heating step is disposed above the nozzle of the 3D list machine to make the 3D list. The nozzle of the machine can obtain the heat-induced shape memory polymer material in the molten state, and is stacked upwardly from the bottom of the first shape body in a stacking manner, and the heat-induced shape memory polymer is formed during the forming. The molecules in the material are bonded to each other via a covalent bond, such that when the first morphological body is completed, the plurality of molecules of the shape memory polymer material are bonded to each other to form an initial state of the smart material.
在早期，產品製造商會使用形狀模具，以塑膠射出的方式來製造產品，而使用模具會導致塑膠產品形狀會被限制，本發明利用3D列表機不使用模具來成形的 優點，使該堆疊成形之第一形態體外型符合設計者的最佳形狀設計，此外，也能在產品中製造出複數之空洞或支撐架，對於產品的設計上具有很大的優勢。 In the early days, product manufacturers used shape molds to make products in a plastic injection manner, and the use of molds caused the shape of plastic products to be limited. The present invention utilizes a 3D list machine to form without using a mold. The advantage is that the first form of the stack forming the outer shape conforms to the designer's optimal shape design, and in addition, a plurality of voids or support frames can be manufactured in the product, which has great advantages in product design.
接著，進行該第二加熱步驟904，對以冷卻的該第一型態體進行低溫加熱，此時不需要使用太高的溫度來進行加熱，並依照不同的熱致型狀記憶材料之特性來選擇加熱溫度，以目前的材料而言，該第二加熱步驟之加熱溫度範圍為60℃~120℃，必須達高分子材料間複數分子有移動的能量，但是其分子鏈由共價鍵拉住而不會被打斷，導致複數分子雖然可以移動但是卻被其分子鏈彼此鍵結住，其第二加熱步驟之加熱溫度不可以太高，以避免分子鏈被溫度能量打斷。 Then, the second heating step 904 is performed to perform low-temperature heating on the cooled first type body. At this time, it is not necessary to use too high temperature for heating, and according to the characteristics of different heat-induced memory materials. Selecting the heating temperature, in the current material, the heating temperature range of the second heating step is 60 ° C ~ 120 ° C, must reach the moving energy of the plurality of molecules between the polymer materials, but the molecular chain is held by the covalent bond Without being interrupted, the complex molecules, although movable, are bound to each other by their molecular chains, and the heating temperature of the second heating step should not be too high to prevent the molecular chains from being interrupted by the temperature energy.
較佳地，該第一較佳實施例利用水的流體特性來對該形狀記憶高分子材料來平均加熱，而水的液態溫度最高為100℃，較其他方式的加熱更具有穩定及易控制的特性，而加熱之技術繁多且成熟，例如空氣加熱、紅外線加熱等，在此不再一一贅述。 Preferably, the first preferred embodiment utilizes the fluid properties of water to averagely heat the shape memory polymer material, and the liquid temperature of the water is up to 100 ° C, which is more stable and controllable than other modes of heating. Characteristics, and the heating technology is numerous and mature, such as air heating, infrared heating, etc., and will not be repeated here.
然後，進行該塑型步驟905，將加熱後的第一型態體加壓塑型成第二型態體，當該第一較佳實施例之第一型態體使用100℃的水中加熱並放置一段時間，使分子間因為分子鏈還鍵結住而彼此有限度的活動著，可對該第一型態體直接加壓塑造出第二型態體，並為維持著加壓的力量直到該第二型態體冷卻硬化時，釋放加壓的力量就可以得到該第二型態體來進行使用，本發明人使用手的力量對該第一形態體進行加壓塑造出第二型態體，實際實施時，可利用其他工具或模具進形塑形，不應以此為限。 Then, the molding step 905 is performed to press-form the heated first type body into a second type body, and when the first type body of the first preferred embodiment is heated in water of 100 ° C and After being placed for a period of time, the molecules are bound to each other due to the limited binding of the molecular chains, and the first type of body can be directly pressurized to shape the second type body, and the force of pressurization is maintained until When the second type body is cooled and hardened, the second type body can be obtained by releasing the force of the pressurization, and the inventors use the force of the hand to pressurize the first form body to form the second type. Body, in actual implementation, can be shaped by other tools or molds, and should not be limited to this.
最後，進行該還原步驟906，當該第二型態使用完畢後，可再次對該第二型態體進行低溫加熱，其加熱溫度與該第二加熱步驟相同，使其熱致型狀記憶材料軟化但不會到達溶熔狀態，並且無需加壓塑形，該第二型態 體會因為複數分子鏈將所連接的分子拉回定位而改變形狀，靜置後所有分子回到定位，便會自動回復成第一型態體，這就是熱致型高分子智能材料的特性。 Finally, the reducing step 906 is performed. After the second type is used, the second type body can be heated again at a low temperature, and the heating temperature is the same as the second heating step, so that the heat-induced memory material is made. Softened but does not reach the molten state, and does not require compression shaping, the second type It is realized that because the complex molecular chain pulls back the connected molecules to change the shape, after all the molecules return to the position after standing, they will automatically return to the first type body, which is the characteristic of the thermally induced polymer smart material.
參閱圖3，為本發明熱致形狀記憶材料之塑形方法及以該方法成型的產品的第二較佳實施例，是使用該第一較佳實施例之方法所成型之產品，其包含一公件3，及一可配合該公件3形狀而組接在一起之母件4，其中，該第二較佳實施例之公件3為一起子，其包括一手握主體31，及一設置於該手握主體31下方之起子頭32，該起子頭是選用聚環己內酯(Polycaprolactone,PCL)之熱致形狀記憶高分子材料所製成並利用該3D列表機(圖中未示出)堆疊而成，該起子頭32中間使用該3D列表機的列印技術形成複數的小空洞(圖中未示出)，用以在第二加熱步驟時更容易改變形狀，該起子頭32之第一型態體前端可以是十字形狀，實際實施時，也可以為一字或其他形狀，不應以此為限。 Referring to FIG. 3, a second preferred embodiment of the method for shaping a heat-induced shape memory material of the present invention and a product formed by the method is a product formed by using the method of the first preferred embodiment, which comprises a The male member 3 and a female member 4 that can be assembled together with the shape of the male member 3, wherein the male member 3 of the second preferred embodiment is a single member, which includes a hand holding body 31, and a setting The driver's head 32 is made of a heat-induced shape memory polymer material selected from polycaprolactone (PCL) and utilizes the 3D list machine (not shown). Stacked, the print head 32 uses a printing technique of the 3D lister to form a plurality of small holes (not shown) for changing the shape more easily in the second heating step, the screwdriver head 32 The front end of the first type body may have a cross shape, and may be a word or other shape when actually implemented, and should not be limited thereto.
該母件4為一密合螺絲，包括一螺紋主體41、一設置於該螺紋主體41上方的螺絲頭42，及一設置於該螺絲頭42上的紋路43。較佳地，該螺絲頭42上的紋路43有別於一般一字或十字紋路，是無法以一般的螺絲起子加以旋動，當使用該公件3旋開該母件4時，可將該公件3之起子頭32浸泡於熱水5中使其材質軟化，再將該軟化之起子頭下壓於該螺絲頭42上的紋路43，使該公件3之起子頭32成為一個自適應材質，使該起子頭32之形狀和該螺絲頭42上的紋路43之形狀並緊密結合在一起，當溫度下降使該起子頭32將會硬化，即可旋開該母件4，使用完畢時，可再將該起子頭32浸泡於熱水中即可自動恢復為十字形狀。 The female member 4 is a close-fitting screw, and includes a threaded main body 41, a screw head 42 disposed above the threaded main body 41, and a grain 43 disposed on the screw head 42. Preferably, the texture 43 on the screw head 42 is different from the general word or cross pattern, and cannot be rotated by a general screwdriver. When the male member 3 is used to unscrew the female member 4, the The screwdriver head 32 of the male member 3 is immersed in the hot water 5 to soften the material thereof, and then the softened screwdriver head is pressed against the grain 43 on the screw head 42, so that the screwdriver head 32 of the male member 3 becomes an adaptive The material is such that the shape of the screwdriver head 32 and the shape of the texture 43 on the screw head 42 are tightly combined. When the temperature is lowered, the screwdriver head 32 will be hardened, and the female member 4 can be unscrewed. The plunging head 32 can be automatically reverted to a cross shape by immersing it in hot water.
參閱圖4，為本發明熱致形狀記憶材料之塑形方法及以該方法成型的產品的第三較佳實施例，該第三 較佳實施例與該第二較佳實施例大致相同，相同之處於此不再贅述，不同之處在於該母件4更包括一設置於該螺絲頭42上方之保護層44，該保護層44是選用聚環己內酯(Polycaprolactone,PCL)之熱致形狀記憶高分子材料所製成，而該公件3之起子頭32可使用金屬材質並製作成可與該螺絲頭42之紋路43組接在一起的形狀。 Referring to FIG. 4, a third preferred embodiment of a method for shaping a heat-induced shape memory material of the present invention and a product formed by the method, the third The preferred embodiment is substantially the same as the second preferred embodiment, and the details are not described herein again. The difference is that the female member 4 further includes a protective layer 44 disposed above the screw head 42. The protective layer 44 It is made of a heat-induced shape memory polymer material of polycaprolactone (PCL), and the screwdriver head 32 of the male member 3 can be made of metal and can be assembled with the texture 43 of the screw head 42. The shape together.
當要旋動該母件4時，可將該保護層44淋上熱水來軟化材質，並將該起子頭32下壓並插設於該紋路43中，以旋動該母件4，該母件4上之保護層44於初始態為一平板狀，時可防止外力的破壞，而加熱後在該起子頭32下壓時之可依照該起子頭32之形狀變形，使該母件4之保護層44成為一個自適應材質，並配合該起子頭32及該紋路43之形狀變型，使該起子頭32與該螺絲頭42之紋路43可以更加密合在一起，以防止該母件4旋動時發生崩牙的狀況。 When the female member 4 is to be rotated, the protective layer 44 may be sprayed with hot water to soften the material, and the screwdriver head 32 is pressed down and inserted into the texture 43 to rotate the female member 4. When the protective layer 44 on the female member 4 is in the form of a flat plate in the initial state, the damage of the external force can be prevented, and when the piezoelectric head 32 is pressed down after heating, the shape of the screwdriver head 32 can be deformed, so that the female member 4 is deformed. The protective layer 44 becomes an adaptive material, and the shape of the screwdriver head 32 and the texture 43 is modified so that the driver head 32 and the thread 43 of the screw head 42 can be more encrypted to prevent the mother member 4 from being removed. The condition of a disintegration occurs when the rotation occurs.
經由上述說明可知，本發明熱致形狀記憶材料之塑形方法及以該方法成型的產品確實具有以下優點： It can be seen from the above description that the shaping method of the heat-induced shape memory material of the present invention and the product formed by the method have the following advantages:
一、可形成複雜的形體 First, can form complex shapes
有別於傳統塑膠成型的方法，本發明使用該3D列表機來製作塑膠產品，無須使用模具對該形狀記憶高分子材料進行塑型，有效的使該熱致型狀記憶材料具有複雜的第一形態體。 Different from the traditional plastic molding method, the present invention uses the 3D list machine to manufacture a plastic product, and does not need to mold the shape memory polymer material by using a mold, effectively making the heat-induced shape memory material have a complicated first Morphological body.
二、有效使用形狀記憶高分子材料 Second, the effective use of shape memory polymer materials
本發明利用熱致形狀記憶材料來製作螺絲起子的起子頭，以低溫(100℃)加熱後可密合各種特殊紋路的螺絲，甚至，一般的十字或一字螺絲都可以加以旋動，無需再購買許多來符合各種形狀紋路的特殊螺絲起子。 The invention utilizes a heat-induced shape memory material to make a screwdriver head of a screwdriver, and can heat the screws of various special lines after being heated at a low temperature (100 ° C), and even a general cross or a word screw can be rotated, no need to Buy a number of special screwdrivers to match the various shapes of the texture.
三、使產品容易變形 Third, make the product easy to deform
使用該3D列表機不僅可以製造出以往模具無法形成的第一型態體，還能在成型時產生複數小空洞或支撐架，再低溫加熱並施加壓力時，更容易變形形成該第二型態體。 The 3D list machine can not only manufacture the first type body which cannot be formed by the conventional mold, but also generate a plurality of small holes or support frames during molding, and when it is heated at a low temperature and applied with pressure, it is more easily deformed to form the second type. body.
綜上所述，本發明之熱致形狀記憶材料之塑形方法及以該方法成型的產品確實有別以往的塑膠成型的技術，利用該3D列表機不必使用模具還能達到使用模具無法形成的第一形態體結構，並利用熱致形狀記憶材料的特性，在低溫加熱後可施加壓力來塑造不同的第二形態體，用以使用於不同的場合及目的，故確實能夠達到本發明之功效。 In summary, the shaping method of the heat-induced shape memory material of the present invention and the product formed by the method have different techniques of plastic molding, and the 3D list machine can be used without using a mold. The first morphological structure, and utilizing the characteristics of the thermo-induced shape memory material, can apply pressure to shape different second morphologies after heating at a low temperature for use in different occasions and purposes, so that the effect of the present invention can be achieved. .
惟以上所述者，僅為本發明之三個較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。 However, the above description is only for the three preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change of the patent application scope and the description of the invention is Modifications are still within the scope of the invention.
901~906‧‧‧步驟 901~906‧‧ steps
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| TW200702440A (en) * | 2005-07-04 | 2007-01-16 | Lg Chemical Ltd | Poly(3-hydroxyalkanoate) block copolymer having shape memory effect |
| CN103160948A (en) * | 2013-04-07 | 2013-06-19 | 苏州聚复高分子材料有限公司 | Rapid prototyping shape memory high polymer material and preparation method and application thereof |
| US20140102265A1 (en) * | 2012-10-13 | 2014-04-17 | Devin Lee Looijen | Expandable drivers and bits |
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| US20140102265A1 (en) * | 2012-10-13 | 2014-04-17 | Devin Lee Looijen | Expandable drivers and bits |
| CN103160948A (en) * | 2013-04-07 | 2013-06-19 | 苏州聚复高分子材料有限公司 | Rapid prototyping shape memory high polymer material and preparation method and application thereof |
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