TW201425688A - Pulp compositions and uses of the same - Google Patents

Pulp compositions and uses of the same Download PDF

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TW201425688A
TW201425688A TW102120875A TW102120875A TW201425688A TW 201425688 A TW201425688 A TW 201425688A TW 102120875 A TW102120875 A TW 102120875A TW 102120875 A TW102120875 A TW 102120875A TW 201425688 A TW201425688 A TW 201425688A
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pulp
weight
parts
composition
alumina powder
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TW102120875A
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Chinese (zh)
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Zi-Lin Wu
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Lin ping chen
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Abstract

A pulp composition is provided. The pulp composition comprises a pulp and aluminum oxide powder, wherein the amount of the aluminum oxide powder is about 3 parts by weight to about 45 parts by weight per 100 parts by weight of the pulp (based on the solid content). The pulp composition is useful for the preparation of pulp molding products that have outstanding strength and water-proof property and moisture resistance.

Description

紙漿組合物及其應用 Pulp composition and its application

本發明係關於一種紙漿組合物,尤其係關於一種用於製備紙漿模塑製品之含有氧化鋁粉末的紙漿組合物。 The present invention relates to a pulp composition, and more particularly to a pulp composition containing alumina powder for use in preparing a pulp molded article.

隨者環保概念日漸普及,紙漿模塑製品的應用範圍也日趨廣泛,及於食品、醫藥、日化、工業產品等領域,其具體應用之例子包括工業包裝(如家電用品、玻璃陶瓷、禮品等的防震包裝)、托盤(如雞蛋、水果等的托盤)、醫療拋棄型耗材(如尿壺、馬桶坐墊、手術盤等)、花盆、玩具(如面具)、食品容器(如紙杯)、板材(如裝飾牆板)等。然而,單純使用植物纖維所製得之紙漿模塑製品的防水效果不佳,僅適用於乾燥之儲存條件(如乾燥物品或食品的盛載、乾燥的儲存環境等),不適於盛載含水(油)之產品或僅能短時間盛載,且不適用於潮濕環境中之儲存,此為其應用上的限制。 With the increasing popularity of environmental protection concepts, the application range of pulp molded products is becoming more and more extensive, and in the fields of food, medicine, daily chemicals, industrial products, etc., specific examples of applications include industrial packaging (such as home appliances, glass ceramics, gifts, etc.) Shockproof packaging), trays (such as trays for eggs and fruits), medical disposable supplies (such as urinals, toilet seats, surgical trays, etc.), flower pots, toys (such as masks), food containers (such as paper cups), plates (such as decorative wall panels) and so on. However, the pulp molded products obtained by simply using plant fibers are not suitable for waterproofing, and are only suitable for dry storage conditions (such as dry goods or food storage, dry storage environments, etc.), and are not suitable for containing water ( The product of the oil) can only be stored for a short period of time and is not suitable for storage in a humid environment, which is a limitation of its application.

為改良上述既有紙漿模塑製品的缺點,本發明提供一種用於製備紙漿模塑製品之紙漿組合物,由此製得之紙漿模塑製品具有優異強度及防水(抗濕)性能。 In order to improve the disadvantages of the above-mentioned existing pulp molded article, the present invention provides a pulp composition for preparing a pulp molded article, whereby the pulp molded article obtained has excellent strength and waterproof (wet resistance) property.

本發明之一目的在於提供一種紙漿組合物,其係包含:一紙漿;以及氧化鋁粉末,其中,該氧化鋁粉末之含量為每100重量份之紙漿(以固形物計)約3重量份至約45重量份。 An object of the present invention is to provide a pulp composition comprising: a pulp; and an alumina powder, wherein the alumina powder is contained in an amount of about 3 parts by weight per 100 parts by weight of the pulp (as solid matter) About 45 parts by weight.

本發明之另一目的在於提供一種紙漿模塑製品,其係藉由將上述紙漿組合物置入熱壓成型模具並進行熱壓乾燥而製得。 Another object of the present invention is to provide a pulp molded article which is obtained by subjecting the above pulp composition to a hot press forming mold and performing hot press drying.

為讓本發明之上述目的、技術特徵及優點能更明顯易懂,下文係以部分具體實施態樣進行詳細說明。 The above described objects, technical features and advantages of the present invention will become more apparent from the following detailed description.

以下將具體地描述根據本發明之部分具體實施態樣;惟,在不背離本發明之精神下,本發明尚可以多種不同形式之態樣來實踐,不應將本發明保護範圍解釋為限於說明書所陳述者。此外,除非文中有另外說明,於本說明書中(尤其是在後述專利申請範圍中)所使用之「一」、「該」及類似用語應理解為包含單數及複數形式。且除非文中有另外說明,於本說明書中描述紙漿組合物中所含之成分時,係以組合物所含之固形物計算,即,未納入溶劑(如水)之重量。 The invention will be described in detail below with reference to the specific embodiments of the present invention. The invention may be practiced in various different forms without departing from the spirit and scope of the invention. The person stated. In addition, the terms "a", "an" and "the" And unless otherwise stated herein, the ingredients contained in the pulp composition are described in this specification as being based on the solids contained in the composition, i.e., the weight of the solvent (e.g., water) is not included.

本發明之發明人研究發現,於紙漿中併入氧化鋁粉末,可提升由該紙漿所製得之紙漿模塑製品之強度及防水(抗濕)性能。因此,本發明紙漿組合物之一特點在於,該組合物係包含氧化鋁粉末。 The inventors of the present invention have found that the incorporation of alumina powder into the pulp enhances the strength and waterproof (wet resistance) properties of the pulp molded article obtained from the pulp. Accordingly, one of the pulp compositions of the present invention is characterized in that the composition comprises alumina powder.

特定言之,本發明之紙漿組合物係包含紙漿及氧化鋁粉末,其中,透過在植物纖維表面附著氧化鋁粉末,從而提高由該紙漿組合物所製得之模塑製品的強度,並藉由氧化鋁粉末之包覆,提高紙漿模塑製品之防水(抗濕)性能的效果。為獲致較高的氧化鋁粉末與植物纖維之附著力,所添加之氧化鋁粉末較佳為具有奈米尺寸之氧化鋁奈米粉末。 In particular, the pulp composition of the present invention comprises pulp and alumina powder, wherein the strength of the molded article obtained from the pulp composition is enhanced by adhering alumina powder to the surface of the plant fiber. The coating of alumina powder improves the waterproof (wet resistance) performance of the pulp molded article. In order to obtain a higher adhesion of the alumina powder to the plant fiber, the alumina powder to be added is preferably an alumina nanopowder having a nanometer size.

於本發明之紙漿組合物中,氧化鋁粉末之添加量並無特殊限制。一般而言,每100重量份之紙漿(以固形物計)添加約3重量份至約45重量份、較佳約8重量份至約20重量份之氧化鋁粉末即可提供所欲之強度及防水(抗濕)性之改良功效。於本發明之部分實施態樣中,氧化鋁粉末之添加量係每100重量份之紙漿(以固形物計)添加約13重量份。另外,適用於本發明紙漿組合物的紙漿種類亦無特殊限制,可為任何商購可得或由使用者自行調配之紙漿。常見之紙漿實例包括,但不限於,木漿、蔗漿、棉漿、麻漿、竹漿、葦漿、稻草漿或前述之任意組合。 In the pulp composition of the present invention, the amount of the alumina powder added is not particularly limited. In general, the addition of from about 3 parts by weight to about 45 parts by weight, preferably from about 8 parts by weight to about 20 parts by weight, of the alumina powder per 100 parts by weight of the pulp (based on solids) provides the desired strength and Waterproof (wet resistance) improved. In some embodiments of the present invention, the alumina powder is added in an amount of about 13 parts by weight per 100 parts by weight of the pulp (as solids). Further, the type of pulp which is suitable for use in the pulp composition of the present invention is not particularly limited, and may be any commercially available pulp which is available or self-adapted by the user. Examples of common pulps include, but are not limited to, wood pulp, sugar cane pulp, cotton pulp, hemp pulp, bamboo pulp, mash pulp, straw pulp, or any combination of the foregoing.

於本發明之紙漿組合物中,可進一步添加附著劑以輔助氧化鋁粉末附著於植物纖維上,提供進一步的改良效果。該附著劑可為聚丙烯醯胺、植物澱粉、或其組合。舉例言之,每100 重量份之紙漿(以固形物計),可添加約0.5重量份至約5重量份、較佳約1.5重量份至約3重量份的聚丙烯醯胺;於不受理論限制下,咸信聚丙烯醯胺可增強紙漿所含植物纖維與氧化鋁粉末之間的親和力,提高氧化鋁粉末的附著強度。或者,每100重量份之紙漿(以固形物計),可添加約1重量份至約12重量份、較佳約3重量份至約6重量份的植物澱粉;於不受理論限制下,咸信植物纖維可與植物澱粉形成氫鍵,增強植物纖維之黏著力,進而促進氧化鋁粉末之附著。於本發明之紙漿組合物中,亦可以其他添加量添加附著劑,只要能提供所欲增強附著效果即可,並不以上述添加量為限。 In the pulp composition of the present invention, an adhesion agent may be further added to assist the adhesion of the alumina powder to the plant fiber to provide a further improvement effect. The adhesive agent can be polypropylene decylamine, vegetable starch, or a combination thereof. For example, every 100 The parts by weight of the pulp (in terms of solid content) may be added in an amount of from about 0.5 part by weight to about 5 parts by weight, preferably from about 1.5 parts by weight to about 3 parts by weight, based on the theoretical limit; The acrylamide can enhance the affinity between the plant fiber and the alumina powder contained in the pulp, and improve the adhesion strength of the alumina powder. Alternatively, from about 1 part by weight to about 12 parts by weight, preferably from about 3 parts by weight to about 6 parts by weight, of the plant starch may be added per 100 parts by weight of the pulp (based on the solids); The plant fiber can form a hydrogen bond with the plant starch, enhance the adhesion of the plant fiber, and thereby promote the adhesion of the alumina powder. In the pulp composition of the present invention, the adhesive agent may be added in other amounts, as long as it can provide the desired adhesion enhancement effect, and is not limited to the above-mentioned addition amount.

除附著劑外,亦可於本發明之紙漿組合物中添加聚乙烯,於不受理論限制下,咸信聚乙烯因其線形結構能使組合物中的植物纖維得到很好的延伸並因此提高植物纖維強度,因此可作為紙漿中植物纖維的接著劑。一般而言,聚乙烯之添加量可為每100重量份之紙漿(以固形物計)添加約1重量份至約45重量份,且較佳添加約5重量份至約20重量份,但不以此為限。當然,本發明之紙漿組合物中亦可添加其他習知添加劑,以提供額外增益效果。例如,可於紙漿組合物中添加選自以下群組之添加劑:防水劑、防油劑、防水防油劑、界面活性劑及前述之任意組合,其中防水防油劑之具體實例如氟系防水防油劑、矽系防水防油劑或其組合。 In addition to the adhesion agent, polyethylene may also be added to the pulp composition of the present invention. Without being bound by theory, the salty polyethylene can cause the plant fibers in the composition to be well extended and thus improved due to its linear structure. Plant fiber strength, therefore, can be used as an adhesive for plant fibers in pulp. In general, the polyethylene may be added in an amount of from about 1 part by weight to about 45 parts by weight per 100 parts by weight of the pulp (based on the solids), and preferably from about 5 parts by weight to about 20 parts by weight, but not This is limited to this. Of course, other conventional additives may be added to the pulp composition of the present invention to provide additional gain effects. For example, an additive selected from the group consisting of a water repellent, an oil repellent, a water and oil repellent, a surfactant, and any combination of the foregoing may be added to the pulp composition, wherein a specific example of the water and oil repellent such as fluorine is waterproof. Oil repellent, antimony and oil repellent or a combination thereof.

本發明紙漿組合物之製備方式並無特殊限制,可採用習知之紙漿調配方式來配製。舉例言之,可先將紙漿置於散漿 機中調製成所欲之濃度,隨後視需要以磨漿機將所調製之紙漿研磨至所欲之游離度,接著將其輸入調漿機中,並加入氧化鋁粉末及視需要添加之添加劑,使各成分均勻混合後即獲得本發明之紙漿組合物。 The preparation method of the pulp composition of the present invention is not particularly limited, and it can be formulated by a conventional pulp blending method. For example, the pulp can be placed in the slurry first. Prepare the desired concentration in the machine, then grind the prepared pulp to the desired freeness with a refiner as needed, then input it into the pulper, and add alumina powder and additives as needed. The pulp composition of the present invention is obtained by uniformly mixing the components.

本發明之紙漿組合物可應用於紙漿模塑技術中,供製備紙漿模塑製品。因此,本發明另提供一種紙漿模塑製品,其係藉由將本發明之紙漿組合物置入熱壓成型模具以進行熱壓乾燥而製得。所述熱壓成型模具及熱壓乾燥步驟,可使用任何習知之手段來達成,並無特殊限制。舉例言之,可於一包含網模的成型模具中注入本發明之紙漿組合物,使紙漿組合物覆蓋該網模,隨後進行真空抽氣去除水分以形成濕坯,接著將濕坯移至一熱壓定型模具進行熱壓乾燥,以製得紙漿模製品。 The pulp composition of the present invention can be used in a pulp molding technique for preparing a pulp molded article. Accordingly, the present invention further provides a pulp molded article obtained by subjecting the pulp composition of the present invention to a hot press forming die for hot press drying. The hot press molding die and the hot press drying step can be achieved by any conventional means without particular limitation. For example, the pulp composition of the present invention may be injected into a forming mold comprising a net mold, the pulp composition is covered with the net mold, followed by vacuum evacuation to remove moisture to form a wet blank, and then the wet blank is moved to a The hot press setting die is subjected to hot press drying to obtain a pulp molded article.

茲以下列具體實施態樣進一步例示說明本發明,其中,所採用之量測方法分別如下。 The present invention will be further illustrated by the following specific embodiments in which the measurement methods employed are as follows.

[強度測試] [Strength Test]

以ASTM D642、ISO 12048及CNS 2543/3511標準測試方法測試紙漿模塑製品之強度。 The strength of the pulp molded article was tested in accordance with the ASTM D642, ISO 12048, and CNS 2543/3511 standard test methods.

[防水性測試] [Water resistance test]

將紙漿模塑製品含浸於常溫水中,持續60分鐘,隨後檢測紙漿模塑製品的含水率,含水率越低者防水性越優異。 The pulp molded article was impregnated with water at normal temperature for 60 minutes, and then the moisture content of the pulp molded article was examined. The lower the water content, the more excellent the water repellency.

[紙漿組合物之製備][Preparation of pulp composition] <實施例1> <Example 1>

以如表1所示之比例,將紙漿、氧化鋁粉末、防水劑及防油劑置於調漿槽中均勻混合,製得紙漿組合物1。 The pulp composition, the alumina powder, the water repellent agent and the oil repellent were uniformly mixed in a slurry tank at a ratio as shown in Table 1, to obtain a pulp composition 1.

<實施例2> <Example 2>

以如表1所示之比例,將紙漿、氧化鋁粉末、聚丙烯醯胺、植物澱粉、聚乙烯、防水劑及防油劑置於調漿槽中均勻混合,製得紙漿組合物2。 Pulp, alumina powder, polypropylene decylamine, vegetable starch, polyethylene, water repellent and oil repellent were uniformly mixed in a slurry tank at a ratio as shown in Table 1, to obtain a pulp composition 2.

<比較例1> <Comparative Example 1>

以與實施例1相同之方式製備比較紙漿組合物1,惟不使用氧化鋁粉末,並對應調整紙漿成分比例,如表1所示。 Comparative pulp composition 1 was prepared in the same manner as in Example 1, except that alumina powder was not used, and the proportion of pulp components was adjusted correspondingly, as shown in Table 1.

<比較例2> <Comparative Example 2>

以與實施例2相同之方式製備比較紙漿組合物,惟不使用氧化鋁粉末,並對應調整紙漿成分比例,如表1所示。 Comparative pulp compositions were prepared in the same manner as in Example 2 except that alumina powder was not used and the proportion of pulp components was adjusted correspondingly as shown in Table 1.

[紙漿模塑製品之製備][Preparation of pulp molded products]

分別使用實施例1及2之紙漿組合物1及紙漿組合物2與比較例1及2之比較紙漿組合物1及比較紙漿組合物2製備紙漿模塑製品。具體言之,係將紙漿組合物注入一成型模具中,並進行 真空抽氣去除水分以形成濕坯,將濕坯置於定型模具之上模及下模之間並進行熱壓(溫度:240℃;壓力:30公噸;熱壓時間:40秒),製得紙漿模塑製品。測試所製紙漿模塑製品之強度及防水性,並將結果記錄於表2。 A pulp molded article was prepared using the pulp composition 1 and the pulp composition 2 of Examples 1 and 2 and the comparative pulp composition 1 and Comparative pulp composition 2 of Comparative Examples 1 and 2, respectively. Specifically, the pulp composition is injected into a molding die and carried out Vacuum pumping to remove moisture to form a wet blank, and placing the wet blank between the upper mold and the lower mold of the shaping mold and performing hot pressing (temperature: 240 ° C; pressure: 30 metric tons; hot pressing time: 40 seconds), Pulp molded products. The strength and water repellency of the pulp molded articles were tested, and the results are reported in Table 2.

由表2可知,相較於不含氧化鋁粉末之紙漿組合物,本發明紙漿組合物透過氧化鋁粉末之添加,可大幅提高由此製得之紙漿模塑製品的強度及防水性能(含水百分比低)(參實施例1及比較例1)。此外,透過接著劑之添加,可進一步提升所製紙漿模塑製品的強度及防水性能。因此,使用本發明之紙漿組合物所製得之高強度紙漿模塑製品能應用於含水、含油等產品的長時間盛載,且在作為一般儲存容器使用時,亦能有效抵禦潮濕環境,避免內容物受潮。 As can be seen from Table 2, the pulp composition of the present invention can greatly improve the strength and water resistance of the thus obtained pulp molded article by the addition of the alumina powder compared to the pulp composition containing no alumina powder (water percentage) Low) (See Example 1 and Comparative Example 1). In addition, the strength and water resistance of the pulp molded article can be further improved by the addition of the adhesive. Therefore, the high-strength pulp molded article obtained by using the pulp composition of the present invention can be applied to long-term loading of products containing water and oil, and can also effectively resist the humid environment when used as a general storage container. The contents are damp.

上述實施例僅為例示性說明本發明之原理及其功效,並闡述本發明之技術特徵,而非用於限制本發明之保護範疇。 任何熟悉本技術者在不違背本發明之技術原理及精神下,可輕易完成之改變或安排,均屬本發明所主張之範圍。因此,本發明之權利保護範圍係如後附申請專利範圍所列。 The above embodiments are merely illustrative of the principles and effects of the present invention, and are illustrative of the technical features of the present invention and are not intended to limit the scope of the present invention. Any changes or arrangements that can be easily accomplished by those skilled in the art without departing from the technical principles and spirit of the invention are within the scope of the invention. Accordingly, the scope of the invention is set forth in the appended claims.

Claims (10)

一種紙漿組合物,包含:一紙漿;以及氧化鋁粉末,其中,該氧化鋁粉末之含量為每100重量份之紙漿(以固形物計)約3重量份至約45重量份。 A pulp composition comprising: a pulp; and an alumina powder, wherein the alumina powder is present in an amount of from about 3 parts by weight to about 45 parts by weight per 100 parts by weight of the pulp (as solids). 如請求項1之紙漿組合物,其中該氧化鋁粉末係氧化鋁奈米粉末。 The pulp composition of claim 1, wherein the alumina powder is an alumina nano powder. 如請求項1之紙漿組合物,其中該氧化鋁粉末之含量為每100重量份之紙漿(以固形物計)約8重量份至約20重量份。 The pulp composition of claim 1, wherein the alumina powder is present in an amount of from about 8 parts by weight to about 20 parts by weight per 100 parts by weight of the pulp (based on solids). 如請求項1之紙漿組合物,更包含聚丙烯醯胺,其含量為每100重量份之紙漿(以固形物計)約0.5重量份至約5重量份。 The pulp composition of claim 1 further comprising polypropylene decylamine in an amount of from about 0.5 part by weight to about 5 parts by weight per 100 parts by weight of the pulp (based on solids). 如請求項1之紙漿組合物,更包含植物性澱粉,其含量為每100重量份之紙漿(以固形物計)約1重量份至約12重量份。 The pulp composition of claim 1 further comprising vegetable starch in an amount of from about 1 part by weight to about 12 parts by weight per 100 parts by weight of the pulp (based on solids). 如請求項1之紙漿組合物,更包含聚乙烯,其含量為每100重量份之紙漿(以固形物計)約1重量份至約45重量份。 The pulp composition of claim 1 further comprising polyethylene in an amount of from about 1 part by weight to about 45 parts by weight per 100 parts by weight of the pulp (based on solids). 如請求項1至6中任一項所述之紙漿組合物,更包含選自以下群組之添加劑:防水劑、防油劑、防水防油劑、界面活性劑及前述之任意組合。 The pulp composition according to any one of claims 1 to 6, further comprising an additive selected from the group consisting of a water repellent, an oil repellent, a water and oil repellent, a surfactant, and any combination of the foregoing. 如請求項7之紙漿組合物,其中該防水防油劑係氟系防水防油 劑、矽系防水防油劑或其組合。 The pulp composition of claim 7, wherein the water and oil repellent is a fluorine-based waterproof and oil-proof Agent, hydrazine waterproof and oil repellent or a combination thereof. 如請求項1至6中任一項所述之紙漿組合物,其中該紙漿係選自以下群組:木漿、蔗漿、棉漿、麻漿、竹漿、葦漿、稻草漿及前述之任意組合。 The pulp composition of any one of claims 1 to 6, wherein the pulp is selected from the group consisting of wood pulp, sugar cane pulp, cotton pulp, hemp pulp, bamboo pulp, mash pulp, straw pulp, and the foregoing. random combination. 一種紙漿模塑製品,其係藉由將如請求項1至9中任一項所述之紙漿組合物置入熱壓成型模具以進行熱壓乾燥而製得。 A pulp molded article obtained by subjecting a pulp composition according to any one of claims 1 to 9 to a hot press molding die for hot press drying.
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