201038630 '六、發明說明： 【發明所屬之技術領域】 本發明係與EVA塑料有關，特別係指一種可以在環境下可自然分 解之環保EVA塑料之製造方法。 73 【先前技術】 按，現今石化工業的發達，塑膠材料已成為人們曰常生活中不可 或缺之材料，舉凡塑膠袋、衣服、雨衣、家電用品之外殼等等產品皆 有運用到塑膠材料，因此，塑膠材料已與人們日常生活密不可分。 〇 惟’當瓣材料所製狀產品廢棄時’其對環境的影響也隨著塑 膠製品之大量生產而日益突顯’ 轉製品不論係採取燃燒、掩埋或 回收再製，皆有相當程度的困難及不可行性，故在此種情況下，勢必 需要研發製造出一種能被自然分解之塑膠材料。 故有種了被自然刀解之環保聚乙婦(Polyethylene)塑料被研發 出來，其主要係於聚乙烯(Polyethylene)塑膠原料中添加了澱粉及生 物菌等成份，由於殿粉容易吸水，使其所製成之塑膠製品一旦被拋棄 掩埋後，容易因吸水而被生物菌所分解，達到環保之優點，例如環保 〇 聚乙晞塑料所製成的環保塑膠袋或農業用地膜，即已漸漸被使用，以 替代傳統不易腐化的塑膠袋及地膜。 故上述具有可自然分解之環保聚乙烯塑料若能被應用於 EVA(Ethylene Vinyl Acetate，乙稀醋酸乙烯自旨共聚物）塑料中，將使 EVA塑料製品同樣具有可自然分解之環保優點，惟，上述環保聚乙稀 ^Polyethylene)塑料之熔點高達約18(rc，且驗塑料之熔點約為8〇 C，而EVA塑料於射出成型前所必須添加之發泡劑及架橋劑，其财溫 度皆不能超過95°C，故若將環保聚乙_料直接加人膽⑽㈣⑽ Vinyl Acetate ’乙烯醋酸乙烯酯共聚物）塑料，以射出成型出腿塑 3 201038630 .料製品時，於溫度超過95ΐ時，則發泡劑及架橋劑便因高溫而破壞， 反之若咖度低於95C^•，則又有因為未達到上述環保聚乙稀塑料之溶 點，使其相混合之塑料無法溶化之問題點，故實在有待業者找出方法， 而可使上述具有可自然分解之環保聚乙烯塑料能被廣泛地應用至鹽 塑料中’使EVA塑料製品同樣具有可被自然分解之環保優點。 【發明内容】 ” 本發明之目的即在提供—種可分解之環保EVA塑料之製造方法， 而可製造出可被自然生物分解之環保紐，且魏難塑料 ❹相近。 根據上述目的’本發明可分解之環保EVA塑料之製造方法，其主 要係將具有可分解之環保聚乙埽(p〇lyethylene)塑粒與乙稀醋酸乙稀 酿共聚物(Ethylene Vinyl Acetate，園塑粒，先行藉由混合、加熱 炫融’再重新造粒並予降溫後，其所獲得之環保驗塑粒，仍可維持 與EVA塑料相近之炼點，但卻與環保聚乙稀塑粒一樣具有可被自缺生 物分解之特性。 藉此’使用者可利用本發明之環保塑料，製造出各種可被自 〇然分狀EVA歸類製；並分轉化成無毒無害之型餘。 【實施方式】 ^ 首先，請先參閱第一圖所示，為本發明之製造流程方塊圖，其中， 本發明係包含下列步驟： 八 混合1 ··將具有可分解之環保聚乙烯(Polyethylene)塑粒與乙烯 醋酸乙婦醋絲物(Ethylene Vinyl Acetate，EVA)餘依-定比例加 以混合，其中，該環保聚乙烯塑粒主要係由聚乙烯、澱粉、礦物質、 蛋白質、生物菌及钻著劑所組成。 熔融2·將上述混合後之環保聚乙烯塑粒與乙烯醋酸乙烯酯共聚 物塑粒物共同加熱至im>22(rc，由於該環保聚乙稀塑粒之^約 4 .201038630 為180°C，而該乙烯醋酸乙烯酯共聚物塑粒之熔點則約為8〇。〇，故其 .2熱至180Χ>220ΐ時，將使得環保聚乙稀塑粒與乙稀醋酸乙稀醋共 來物塑粒4麵形祕合狀之混合物，又，該環絲乙雜粒所含 之比例為混合物總體含量2〇%至·，而該乙稀醋酸乙稀醋共聚物塑粒 所含之比例則為混合物總體含量60%至80%。 ^ "粒3 .將上述炫融形成膠合狀之環保聚乙稀塑粒與乙烯醋酸乙 =旨共聚物麵之混合物，經絲機扣捏合、造粒後，即形成一混 合塑粒’而該混合塑粒之溶點約為8(rc，與乙稀醋酸乙稀醋共聚物塑 〇粒之熔點相近^ 。冷卻4 :將上述形成之混合腿付降溫，使其冷卻並形成一成 品，該成品即為本發明之環保EVA塑粒。 。、左重新iaJiL後之混合塑粒，係可配合發_彳及架橋劑等，經押出 或射出而製造出各種可被自然分解之m塑膠類製品，例如鞋子等， 且由該混合觸製成之歸_品可在掩埋201038630 'VI. Description of the invention: [Technical field to which the invention pertains] The present invention relates to EVA plastics, and in particular to a method for manufacturing an environmentally friendly EVA plastic which can be naturally decomposed in an environment. 73 [Prior Art] According to the development of the petrochemical industry, plastic materials have become an indispensable material in people's daily life. All plastic bags, clothes, raincoats, home appliances and other products are used in plastic materials. Therefore, plastic materials have been inseparable from people's daily lives. 〇 ' 'When the product made of the valve material is discarded, its environmental impact is also increasingly highlighted with the mass production of plastic products. 'Transfer products are burned, buried or recycled, and have considerable difficulty and In this case, it is necessary to develop and manufacture a plastic material that can be naturally decomposed. Therefore, Polyethylene plastic, which has been planted by natural knives, has been developed. It is mainly used to add starch and biological bacteria to polyethylene plastic raw materials. Once the plastic products are discarded and buried, they are easily decomposed by biological bacteria due to water absorption, which is environmentally friendly. For example, environmentally friendly plastic bags made of environmentally friendly polyethylene plastic or agricultural film have gradually been Used to replace traditional non-corrosive plastic bags and mulch. Therefore, if the above-mentioned environmentally-friendly polyethylene plastic which can be naturally decomposed can be used in EVA (Ethylene Vinyl Acetate) plastic, the EVA plastic product will have the environmental advantages of natural decomposition, however, The above-mentioned environmentally friendly polyethylene (Polyethylene) plastic has a melting point of about 18 (rc, and the melting point of the plastic is about 8 〇C, and the foaming agent and bridging agent which EVA plastic must add before injection molding, Can not exceed 95 ° C, so if the environmentally friendly polyethylene - directly added to the human (10) (four) (10) Vinyl Acetate 'ethylene vinyl acetate copolymer) plastic, to shoot out the leg plastic 3 201038630. When the product, when the temperature exceeds 95 ,, Then, the foaming agent and the bridging agent are destroyed by high temperature. On the other hand, if the calorie is lower than 95C^•, the problem that the mixed plastic cannot be melted because the melting point of the above-mentioned environmentally friendly polyethylene plastic is not reached. Therefore, there is a need for the industry to find a way to make the above-mentioned environmentally-friendly polyethylene plastic which can be naturally decomposed can be widely applied to salt plastics, so that EVA plastic products can also be naturally divided. The environmental benefits. SUMMARY OF THE INVENTION The object of the present invention is to provide a method for producing an environmentally-friendly EVA plastic which can be decomposed, and to produce an environmentally friendly neon which can be decomposed by natural organisms, and which is similar to Wei Nan plastic. According to the above object, the present invention Decomposable environmentally friendly EVA plastic manufacturing method, which mainly has decomposable environmentally friendly p聚lyethylene plastic particles and ethylene vinyl acetate copolymer (Ethylene Vinyl Acetate) After mixing, heating and melting, and then re-granulating and cooling, the environmentally-friendly plastic pellets obtained can still maintain the refining point similar to EVA plastic, but it can be used as well as environmentally friendly polyethylene plastic pellets. The characteristics of biodegradation. By this, the user can use the environmentally-friendly plastic of the present invention to manufacture various types of EVA classified by the EVA; and convert it into a non-toxic and harmless type. [Embodiment] ^ First, Please refer to the first figure, which is a block diagram of the manufacturing process of the present invention, wherein the present invention comprises the following steps: Eight Mix 1 ··················································· Ethylene Vinyl Acetate (EVA) is mixed in proportion to the ratio of the polyethylene, starch, minerals, protein, biological bacteria and drilling agent. Melting 2. The above-mentioned mixed environmentally friendly polyethylene plastic particles and ethylene vinyl acetate copolymer plastic particles are heated together to im > 22 (rc, since the environmentally friendly polyethylene plastic particles are about 4.201038630 is 180°. C, and the ethylene vinyl acetate copolymer plastic pellet has a melting point of about 8 〇. Therefore, when it is heated to 180 Χ > 220 ,, the environmentally friendly polyethylene plastic granules are mixed with the ethyl acetate vinegar. a mixture of the shape of the plastic particles and the surface of the mixture, and the ratio of the content of the mixture to the total content of the mixture is 2% to □, and the proportion of the ethylene vinegar copolymer The total content of the mixture is 60% to 80%. ^ "granules 3. The mixture of the above-mentioned smudge-forming environmentally-friendly polyethylene plastic granules and ethylene acetate acetonitrile copolymer is kneaded and kneaded by a wire machine. After the granules, a mixed granule is formed, and the melting point of the mixed granule is about 8 (rc, It is close to the melting point of the vinyl acetate vinegar copolymer plastic granules. Cooling 4: The mixed legs formed above are cooled to cool and form a finished product, which is the environmentally friendly EVA plastic granule of the invention. The left mixed iaJiL mixed plastic pellets can be combined with hairpins and bridging agents to produce various plastic products that can be naturally decomposed, such as shoes, and are made of the blend. Return to the product _ can be buried
ϋ分解過程中係可包含生物分解、光分解及水分解，同時，其H 藉由、·’田菌、真菌、漆類、放線菌所分泌之酵素，將上述塑膠製品分解 〇轉化成二氧化碳及水，而於18〇天後其分解率達画，另外，由該混 t塑料製狀歸㈣品亦可於焚化射焚化，無麟不會產生有 毋氣，’亦不會破壞焚化爐本身之結構，故可延長焚化爐之使用壽命。 、綜上所述’本發明在同類產品中實有其極佳之進步實用性，同時 f國内外關於此類結構之技術資料，讀+亦未魏有相同的構造 子在在先、，是以’本發明實已具備發明專利要件，棄依法提出申請。 I1 隹以上所述者’僅係本發明之一較佳可行實施例而已，故舉凡 ^用本日月書及申睛專利範圍所為之等效結構變化，理應包含 本發明之專利範圍内。 201038630 【圖式簡單說明】 第一圖為本發明之製造流程方塊圖。 【主要元件符號說明】 1 混合 2 熔融 3 造粒 4 冷卻 〇The decomposition process can include biodegradation, photolysis and water decomposition. At the same time, H is decomposed and converted into carbon dioxide by the enzyme secreted by the bacteria, fungi, lacquer and actinomycetes. Water, and after 18 days, its decomposition rate is up to the painting. In addition, the product of the mixed plastics can also be incinerated by incineration, and there is no suffocation in the lining, and it will not destroy the incinerator itself. The structure can extend the service life of the incinerator. In summary, the present invention has its excellent progress and practicality in similar products, and at the same time, the technical information about such structures at home and abroad, the reading + also has the same constructor in the prior, is The invention has the invention patent requirements and has abandoned the application according to law. The above-mentioned ones are merely preferred embodiments of the present invention, and it is intended that the equivalent structural changes of the present invention and the scope of the patents of the present invention should be included in the scope of the invention. 201038630 [Simple description of the drawings] The first figure is a block diagram of the manufacturing process of the present invention. [Main component symbol description] 1 Mix 2 Melt 3 Granulation 4 Cooling 〇
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