JPS6245052B2 - - Google Patents
Info
- Publication number
- JPS6245052B2 JPS6245052B2 JP57213652A JP21365282A JPS6245052B2 JP S6245052 B2 JPS6245052 B2 JP S6245052B2 JP 57213652 A JP57213652 A JP 57213652A JP 21365282 A JP21365282 A JP 21365282A JP S6245052 B2 JPS6245052 B2 JP S6245052B2
- Authority
- JP
- Japan
- Prior art keywords
- wood
- molding
- resin
- aggregate
- molded product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920005989 resin Polymers 0.000 claims description 55
- 239000011347 resin Substances 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 33
- 238000000465 moulding Methods 0.000 claims description 32
- 239000002023 wood Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 6
- 238000004061 bleaching Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 239000002253 acid Substances 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 235000013312 flour Nutrition 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 241000199223 Elaeocarpus kirtonii Species 0.000 description 2
- 235000009414 Elaeocarpus kirtonii Nutrition 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000013584 Tabebuia pallida Nutrition 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Reinforced Plastic Materials (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
(産業上の利用分野)
この発明は混入樹脂素材に対する馴染み特性並
びに成形特性の特に良好な白無地様木粉骨材の提
供による耐摩耗、曲げ強度特性並びに加工特性に
優れ、しかも低い熱膨張特性を有する強化樹脂成
形品の提供を目的としたものである。Detailed Description of the Invention (Field of Industrial Application) This invention provides a plain white wood flour aggregate that has particularly good conformability and molding properties to mixed resin materials, thereby improving wear resistance, bending strength properties, and processing properties. The object of the present invention is to provide a reinforced resin molded product having excellent and low thermal expansion characteristics.
(従来の技術)
而して従前におけるこの種の合成樹脂成形品の
強化は、グラスフアイバー、ロツクウール等の無
機質素材の添加、混入が通例予定されたものであ
るが、より自然に近い感触を樹脂成形品にもたら
すことゝ、低廉な成形コストを維持する目的より
して近時ポリ塩化ビニル、ポリエチレン、アクリ
ルニトリル―ブタジエン―スチレン等の樹脂素材
中に木材粉又は、同様のセルロース物質を混入し
て樹脂成形品を強化することが試みられたもので
ある。(Prior art) Previously, the reinforcement of this type of synthetic resin molded product was usually planned by adding or mixing inorganic materials such as glass fiber or rock wool. In order to maintain low molding costs, wood powder or similar cellulose substances have recently been mixed into resin materials such as polyvinyl chloride, polyethylene, and acrylonitrile-butadiene-styrene. This was an attempt to strengthen resin molded products.
かゝる成形樹脂中に所要量の木材粉を混入する
ことは樹脂成形品の強度、特に曲げ強度を非混入
樹脂成形品に比し略2倍とし、又、樹脂成形時並
びに成形後における歪率を著しく低いものになす
と共に耐摩耗性を特に向上したものであつて、理
想的な安い強化樹脂成形品の提供に特に意味を有
したものである。 Mixing the required amount of wood powder into such molding resin increases the strength of the resin molded product, especially the bending strength, approximately twice that of the non-mixed resin molded product, and also reduces distortion during resin molding and after molding. It has a significantly low wear resistance and particularly improved wear resistance, and is particularly meaningful in providing ideal and inexpensive reinforced resin molded products.
しかし乍ら、かゝる従前手法においては混入木
材粉自体の素材的特性がそのまゝ成形品表面に表
われ、質量感、色調並びに光沢感等において必ら
ずしも満足し得るものでなく、又混入木材粉周面
に空隙あるいは巣が構成され、これが外観面にお
いては勿論のこと強度面においても種々の不都合
の発生要因とされたものである。 However, in such conventional methods, the material characteristics of the mixed wood powder itself are directly reflected on the surface of the molded product, and it is not always satisfactory in terms of mass, color tone, gloss, etc. In addition, voids or nests are formed on the surrounding surface of the mixed wood powder, which causes various problems not only in terms of appearance but also in terms of strength.
又、混入される木材粉における含有木酸の対策
が必らずしも充分になされ難く、成形に際して発
生する酢酸ガス等による機器、殊にシリンダー、
ダイあるいは成形型面の腐蝕、損耗等の不都合が
誘起されたものである。 In addition, it is not always possible to take sufficient measures to prevent the wood acid contained in the wood powder that is mixed into the wood powder, and equipment, especially cylinders, etc. that are affected by acetic acid gas generated during molding.
This is caused by problems such as corrosion and wear on the die or mold surface.
(この発明の目的と構成)
本発明に係る樹脂成形の手法においては、かゝ
る混入木材における取扱い上の不都合を一掃すべ
く、その粉末骨材の生成工程において工夫を凝ら
し、使用樹脂素材との良好な馴染み特性を有し、
しかも良好な滑り特性を有するものとして押出し
成形等における成形特性を良好とし、又成形に際
しての機器の疲労、損耗を極力抑止するようにし
たものである。(Objects and Structure of the Invention) In the resin molding method according to the present invention, in order to eliminate such inconveniences in handling the mixed wood, the process of producing the powder aggregate is devised and the resin material used is It has good familiarity characteristics,
In addition, it has good sliding properties, so it has good molding properties in extrusion molding, etc., and is designed to suppress fatigue and wear and tear of equipment during molding as much as possible.
而して、本発明に係る木質様強化樹脂成形品の
成形手法は、かゝる目的を達成するために案出さ
れたものであつて、その構成の要旨を木材を破砕
又は切断して生成される木材チツプを漂白、脱色
した後、液状熱硬化性樹脂材を添加して加熱硬化
する工程と、この加熱硬化されたチツプ塊を切削
して300μm以下の微粒粉末状の乾燥骨材を得る
工程と、この乾燥骨材を成形目的に即応した割合
に応じて成形樹脂素材中に混入して成形をなすよ
うにした工程とする点に置き、以下の具体的な実
施例とこれ等実施例に附随する相当の設計変更を
予定し、成形品における純粋且つ一様な白無地木
目様の外観、色調並びに質量感の提供を約束する
共に成形品表面が特に緻密、平滑状とされ、巣等
のない確実な成形品が、比較的良好な成形効率の
もとに提供され得るようにしたものである。 Therefore, the method of molding a wood-like reinforced resin molded product according to the present invention was devised to achieve such an objective, and the gist of its structure is that it is produced by crushing or cutting wood. After bleaching and decolorizing the wood chips, a liquid thermosetting resin material is added and heated to harden, and the heat-hardened chip mass is cut to obtain dry aggregate in the form of fine powder of 300 μm or less. Based on the process and the process of mixing this dry aggregate into the molding resin material in a proportion that corresponds to the molding purpose and forming the mold, the following specific examples and examples will be described. We plan to make considerable design changes in conjunction with this, and we promise to provide the molded product with a pure and uniform white plain wood grain-like appearance, color tone, and sense of mass.In addition, the molded product surface will be particularly dense and smooth, and the molded product will have a particularly dense and smooth surface, with no nests, etc. This makes it possible to provide reliable molded products free from molding with relatively good molding efficiency.
(実施例)
以下本発明に係る木質様強化樹脂成形品の典型
的な成形方法の一例を説明するに、1はチヨツパ
ー等の適宜の装置をもつて破砕又は切断された木
材チツプであつて、使用木材固有の色彩、質感を
有すると共に通例木酸と称される酢酸を含有した
ものである。かゝるチツプ1を漂白剤液2中に浸
漬する等の適宜の手法をもつて含有色素分の脱色
をなすようにしたものであり、通例は次亜塩素酸
ナトリウム法、過酸化水素法、亜塩素酸ナトリウ
ム法等の適宜の漂白手法が用いられたものであ
る。尚、これ等の漂白水洗等においてPH基を極力
中性に戻すべく希硫酸液等に浸漬して酸処理を施
すと共に酸あるいは塩素の残留のないように充分
な水洗処理がなされたものである。(Example) An example of a typical molding method for a wood-like reinforced resin molded product according to the present invention will be described below. 1 is a wood chip that has been crushed or cut using an appropriate device such as a chopper, It has a color and texture unique to the wood used, and also contains acetic acid, commonly called wood acid. Such a chip 1 is decolored by an appropriate method such as immersing it in a bleach solution 2, and the pigment content is usually decolored by the sodium hypochlorite method, hydrogen peroxide method, An appropriate bleaching method such as the sodium chlorite method was used. In addition, in order to return the PH group to neutrality as much as possible during bleaching and water washing, etc., the material is immersed in dilute sulfuric acid solution and subjected to acid treatment, and is also thoroughly washed with water to ensure that no acid or chlorine remains. .
かくして特有の色素を分解され、一律な白無地
様とされたチツプ1に対しポリウレタン樹脂、ユ
リア樹脂あるいは尿素樹脂等の熱硬化性樹脂2液
又は粉末を添加し、ホツトプレス手法等をもつて
加熱、硬化してチツプ塊3を得たものである。 In this way, the unique pigments are decomposed and the chip 1 is made into a uniform white color. Two liquids or powder of a thermosetting resin such as polyurethane resin, urea resin, or urea resin are added to the chip 1, and the chip is heated using a hot press method or the like. The chip mass 3 was obtained by hardening.
かゝるホツトプレス処理においては概ね130℃
前後のプレス加工がなされたことよりしてチツプ
1中に含有される水分3〜8%程度に減少される
と共に前記処理において尚、残留されれている木
酸あるいは塩素ないしは酸を解離し、揮散したも
のであり、この解離、揮散後におけるチツプ1中
に含まれる弱―強酸又は強アルカリ性ガスの放散
の余地を一切なくしたものである。 In such hot press treatment, the temperature is approximately 130℃.
Due to the press processing before and after, the water content in the chips 1 is reduced to about 3 to 8%, and during the above treatment, the remaining wood acid, chlorine, or acid is dissociated and volatilized. After this dissociation and volatilization, there is no room for the weak to strong acid or strong alkaline gas contained in the chips 1 to dissipate.
次いで、ホツトプレスされたチツプ塊3を適宜
の手法、例えば研磨装置、破砕装置あるいは微粒
截断装置等を使用して、これを50〜150メツシユ
(300μm〜100μm)程度の微粒粉末状の骨材4
としたものである。尚、この研磨あるいは破砕処
理等においてチツプ1中の含有水分を更に除去す
べく130〜150℃の範囲内において熱風による乾燥
処理が別途予定されたものである。 Next, the hot-pressed chip mass 3 is processed using an appropriate method, such as a polishing device, a crushing device, or a fine-grain cutting device, to form aggregate 4 in the form of fine powder of about 50 to 150 meshes (300 μm to 100 μm).
That is. In order to further remove the moisture contained in the chips 1 during this polishing or crushing process, a drying process using hot air at a temperature of 130 DEG to 150 DEG C. was separately scheduled.
かくして生成提供される骨材4は樹脂素材5中
に取り込まれた場合においても通例の木材粉末骨
材における種々の不都合を有しないものとして、
優れた樹脂骨材として活用し得たものである。 The aggregate 4 thus produced and provided does not have the various disadvantages of common wood powder aggregates even when incorporated into the resin material 5.
This material could be used as an excellent resin aggregate.
即ち、骨材4における粒径が特に微細であるこ
とよりして樹脂素材5との馴染みが良好とされ、
樹脂の原料粉末等に均一な割合をもつてムラなく
混練され、その加熱成形等において骨材4の周面
が樹脂素材5をもつて完全に囲繞されたものとな
り、成形に際しての摩擦抵抗が殆ど使用樹脂素材
5のそれに近いものとされ、射出あるいは押出し
成形における不都合が確実に防止されたものであ
る。 That is, since the particle size of the aggregate 4 is particularly fine, it is said to have good compatibility with the resin material 5,
It is evenly kneaded in a uniform proportion with the resin raw material powder, etc., and when it is heated and molded, the peripheral surface of the aggregate 4 is completely surrounded by the resin material 5, and the frictional resistance during molding is almost negligible. It is close to that of the resin material 5 used, and any inconveniences during injection or extrusion molding can be reliably prevented.
特に、かゝる骨材4における摩擦抵抗の問題
は、骨材4が熱硬化性樹脂2をもつて充分に固く
硬化され、通例の凡材粉におけるような粗表面が
一掃されたことよりして、殆ど使用樹脂素材5に
おけると同一の押出し圧ないしは射出圧による成
形を可能とされる程度に納められたものである。 In particular, the problem of frictional resistance in the aggregate 4 is due to the fact that the aggregate 4 is cured sufficiently hard with the thermosetting resin 2, and the rough surface like that in ordinary flour has been wiped away. Therefore, the extrusion pressure or injection pressure is almost the same as that for the resin material 5 used.
尚、又叙上におけるチツプ塊3の成形において
特異な、即ちアルカリ性のガスを誘起するような
樹脂2をツナギ素材として使用する場合において
は、チツプ1における木酸の中和、特に弱酸系の
有効な中和処理が事前になされたものであり、以
降の漂白における「強アルカリ―強酸」による処
理のみにより目的とする性状を有するチツプ塊3
が得られたものである。 In addition, in the molding of the chip mass 3 described above, when using a resin 2 which is unique, that is, which induces alkaline gas, as the material for the jumpsuit, neutralization of the wood acid in the chip 1, especially the effectiveness of a weak acid type resin, is required. A chip mass 3 that has been subjected to a neutralization treatment beforehand and has the desired properties only by treatment with "strong alkali-strong acid" during subsequent bleaching.
is what was obtained.
尚、かゝる混入骨材における摩擦抵抗の問題
は、単に押出し、射出された成形品の表面荒れの
問題のみならずシリンダー表面の損耗、ダイの破
損、金型破損等の原因とされたものである。 Incidentally, the problem of frictional resistance in such mixed aggregates is not only a problem of surface roughness of extruded or injected molded products, but also causes of wear and tear on the cylinder surface, breakage of the die, breakage of the mold, etc. It is.
次いで、含有水分を極乾状態に設定することに
より、成形加熱時における水蒸気の発生とこの発
生水蒸気の酸性ガスとによる種々の不都合、殊に
混入骨材周面に発生する巣ないしは離間空隙の問
題、シリンダー、ダイあるいは金型面の腐蝕の問
題とを解決し、混入された骨材4が何等の空隙を
介することなく樹脂素材5中に取り入れられて本
来の骨材としての機能を奏効し得るようになすと
共に木酸ガスの発生を確実に防止したものであ
る。 Next, by setting the moisture content to an extremely dry state, various problems arise due to the generation of water vapor during heating for forming and the acidic gas of this generated water vapor, especially the problem of cavities or isolated voids occurring on the surrounding surface of the mixed aggregate. This solves the problem of corrosion of cylinders, dies, or mold surfaces, and allows the mixed aggregate 4 to be incorporated into the resin material 5 without any voids, allowing it to function as an original aggregate. In addition to this, it also reliably prevents the generation of wood acid gas.
尚、かゝる手法においては、従前例に比し混入
骨材総量を多くした場合においても充分に押出
し、ないしは射出し得たものであり、白無地様の
木質様樹脂材の任意の成形を可能としたものであ
る。 In addition, with this method, even when the total amount of mixed aggregate is increased compared to the conventional method, sufficient extrusion or injection is possible, and it is possible to perform arbitrary molding of plain white wood-like resin material. This made it possible.
尚、叙上における骨材4の含有水分量の増加を
更に確実に抑止するものとして乾燥骨材4を成形
目的とされる樹脂素材をもつて予め練成し、適宜
のペレツト6として用意することが別途予定され
たものであり、かゝる手法においては骨材4の管
理が特に容易とされ、現場においては通例の押出
し、ないしは射出操作のみによる強化樹脂成形品
の製作が約束されたものである。 In order to more reliably suppress the increase in the water content of the aggregate 4 mentioned above, the dried aggregate 4 can be kneaded in advance with a resin material intended for molding and prepared as appropriate pellets 6. This method was planned separately, and it was said that the management of the aggregate 4 would be particularly easy, and it was promised that reinforced resin molded products could be produced on-site using only conventional extrusion or injection operations. be.
又、叙上における樹脂素材5は、その成形特性
等よりして塩化ビニル、ポリプロピレン、ポリエ
チレン、ポリカーボネイト等の熱軟化性樹脂材は
勿論のことABS樹脂その他の熱硬化性樹脂の使
用も別途予定されたものである。 In addition, the resin material 5 mentioned above is not only heat-softening resin materials such as vinyl chloride, polypropylene, polyethylene, and polycarbonate, but also other thermosetting resins such as ABS resin are separately planned due to their molding characteristics. It is something that
次いで、これ等の樹脂成形において特に発泡を
内容とした場合に更に以下の諸特性の奏効が認め
られたものであり、これを仔細に説明するに、叙
上における骨材4をポリウレタン樹脂、ユリア樹
脂等に耐し60〜80%の割合で混入し、これにフレ
オン、プロパン、ブタンあるいはペンタン等の比
較的沸点の低い発泡材と、重合触媒とを混入して
成形型内に注入し、常温又は加熱発泡して発泡さ
れた木質様強化樹脂成形品を得るようにしたもの
である。 Next, in these resin moldings, especially when foaming is included, the following properties have been found to be effective.To explain this in detail, aggregate 4 in the above is made of polyurethane resin, urea resin, etc. It is resistant to resin and mixed at a ratio of 60 to 80%, and a foaming material with a relatively low boiling point such as freon, propane, butane, or pentane and a polymerization catalyst are mixed in and poured into a mold and heated at room temperature. Alternatively, a foamed wood-like reinforced resin molded product can be obtained by heating and foaming.
かくして成形提供される樹脂製品は骨材4〜4
間に発泡空隙7が構成されると共に骨材4〜4が
樹脂素材の皮膜8をもつて夫々被包されながら連
結一体のものとされ、あたかも骨材4と、空隙7
とが皮膜8をもつて蜂ノ巣的に連結、構成された
ものである。 The resin product thus molded and provided consists of aggregates 4 to 4.
Foamed voids 7 are formed between them, and the aggregates 4 to 4 are each encapsulated with a resin film 8 to form a connected and integrated structure, as if the aggregates 4 and voids 7
and are connected and configured in a honeycomb manner with a membrane 8.
特に、かゝる構造内容においては、骨材相互が
接触し乍ら、その相隣接する骨材相互間に完全な
発泡空隙7を構成し、しかもこれ等を蜂ノ巣様に
皮膜8をもつて連結したことよりして前記諸特性
の具体的な奏効を期し得たものである。 In particular, in such a structure, while the aggregates are in contact with each other, complete foamed voids 7 are formed between the adjacent aggregates, and moreover, they are covered with a honeycomb-like coating 8. By linking them together, specific effects on the above-mentioned properties can be expected.
即ち、骨材4〜4が相互に当接するように構成
されたことよりして耐荷重強度における脆弱さが
回避されると共に皮膜8による蜂ノ巣様構造特性
よりして曲げ強度、耐衝撃強度、保型強度等が飛
躍的に助長され、又、使用樹脂素材量を減じて樹
脂板としての不都合、就中成形歪みの発生、燃焼
時における有害ガスの発生、釘打時におけるクラ
ツクの発生時の生ずる余地を無くし、更に木質材
以上の断熱特性の向上を期したものである。 That is, since the aggregates 4 to 4 are configured to abut each other, weakness in the load-bearing strength is avoided, and the honeycomb-like structure characteristic of the coating 8 increases bending strength and impact resistance. , the shape retention strength, etc. has been dramatically improved, and the amount of resin material used has been reduced, resulting in inconveniences as a resin board, including the occurrence of molding distortion, the generation of harmful gases during combustion, and the occurrence of cracks during nailing. The aim is to eliminate the possibility of this occurring, and to improve the heat insulation properties over that of wood materials.
尚、骨材4が全て皮膜8をもつて被包されたこ
とよりして木質様素材であるにも拘らず耐水性、
耐薬品性が特に良好とされ、通例木質材に見受け
られない特性の奏効が期されると同時に樹脂板と
異なつて通例の木質材におけると同様の切削、釘
打ち等の加工処理が可能とされたものである。 In addition, since all of the aggregate 4 is encapsulated with a film 8, it has water resistance despite being a wood-like material.
It is said to have particularly good chemical resistance, and is expected to have properties not normally found in wood materials.At the same time, unlike resin boards, it is possible to perform processing such as cutting and nailing in the same way as regular wood materials. It is something that
又、素材の主原料が骨材としての木粉であるに
も拘らず樹脂皮膜8の存在をもつて型成形は勿
論、その他の樹脂板におけると同様の成形ないし
は加工処理が可能とされたものである。 In addition, although the main raw material of the material is wood flour as an aggregate, the presence of the resin film 8 makes it possible not only to mold it, but also to mold it or process it in the same way as other resin plates. It is.
(発明の効果)
本発明に係る木質様樹脂成形品は叙上における
特長ある構成並びに作用、効果を有するものとし
て提供されると共に通常の樹脂成形におけると同
様の成形手法をもつて前記特性を有する成形品の
提供を可能としたものであり、特に熱膨張率が少
なく、成形時並びに成形後における組成変化に伴
う歪みも少ない良好な成形品の提供を可能とした
ものである。(Effects of the Invention) The wood-like resin molded product according to the present invention is provided as having the characteristic structure, action, and effect described above, and also has the above characteristics by using the same molding method as in ordinary resin molding. This makes it possible to provide a molded product, and in particular, it has made it possible to provide a good molded product that has a low coefficient of thermal expansion and has little distortion due to changes in composition during and after molding.
又、機械的特性としての曲げ強度も強く、当然
硬度も充分なものとされ表面耐摩耗特性も著しく
助長されたものである。 In addition, the bending strength as a mechanical property is strong, and of course the hardness is also sufficient, and the surface abrasion resistance is significantly improved.
更に又、素材面で木材系を混入主原料とし樹脂
系を塑型手段としたことをもつて通常の木工機
械、工具による加工を可能になすと共にラツカ
ー、ペンキ等による表面処理も完全なものとし、
同時に混入木粉による木材特有の色調、感触を成
形品に約束したものである。 Furthermore, in terms of materials, wood is used as the main raw material and resin is used as the molding means, making it possible to process with ordinary woodworking machines and tools, and also perfect surface treatment with lacquer, paint, etc. ,
At the same time, the mixed wood flour ensures that the molded product has the unique color tone and feel of wood.
尚又、混入される骨材4における含有色素が除
去され、一様の白無地とされたことよりして、混
入骨材の種別、性状の変化に伴う成形品表面の色
彩ないしは質量感のバラツキをなくし、均一な色
調、質量感を呈する成形品の提供を約束し、使用
木材における材質面での制約を有効に除去するよ
うにしたものである。 Furthermore, since the pigment contained in the mixed aggregate 4 has been removed and the color is uniformly white, variations in color or mass feel on the surface of the molded product may occur due to changes in the type and properties of the mixed aggregate. This technology promises to provide a molded product with a uniform color tone and mass, and effectively eliminates restrictions on the quality of the wood used.
特に木工素材としては切断面の全てが白無地木
質様の特性を呈し、従前例における吹付け、型付
けあるいは化粧シートの貼合せ等による木質状素
材と異なり合成樹脂素材であることを何等関知さ
せることのない効果を有したものである。 In particular, as a woodworking material, the entire cut surface exhibits the characteristics of plain white wood, and unlike the wood-like materials that have been sprayed, molded, or pasted with decorative sheets in the past, it should be made clear that it is a synthetic resin material. It has no effect.
第1図は本発明の成形方法において使用される
チツプの斜視図、第2図は漂白状態を示す断面
図、第3図はホツトプレス工程を示す側面図、第
4図は最終成形骨材を示す斜視図、第5図は樹脂
成形品の一部拡大断面図、第6図はペレツトの拡
大断面図、第7図は発泡樹脂成形品の一部拡大断
面図である。
尚、図中1…木材チツプ、2…熱硬化性樹脂、
3…チツプ塊、4…骨材、5…樹脂素材、6…ペ
レツト、7…発泡空隙、8…皮膜を示したもので
ある。
Fig. 1 is a perspective view of the chips used in the molding method of the present invention, Fig. 2 is a sectional view showing the bleached state, Fig. 3 is a side view showing the hot pressing process, and Fig. 4 is the final molded aggregate. FIG. 5 is a partially enlarged sectional view of a resin molded product, FIG. 6 is an enlarged sectional view of a pellet, and FIG. 7 is a partially enlarged sectional view of a foamed resin molded product. In the figure, 1...wood chips, 2...thermosetting resin,
3... Chip mass, 4... Aggregate, 5... Resin material, 6... Pellet, 7... Foaming void, 8... Film.
Claims (1)
プを漂白、脱色した後、液状熱硬化性樹脂材を添
加して加熱硬化する工程と、この加熱硬化された
チツプ塊を切削して300μm以下の微粒粉末状の
乾燥骨材を得る工程と、この乾燥骨材を成形目的
に即応した割合に応じて成形樹脂素材中に混入し
て成形をなすようにした工程とよりなることを特
徴とする木質様硬化樹脂成形品の成形方法。 2 前記骨材における含有水分量を樹脂成形にお
いて骨材より酸性ガス又はアルカリ性ガスの解離
されない範囲内に設定したことを特徴とする特許
請求の範囲第1項記載に係る木質様強化樹脂成形
品の成形方法。[Scope of Claims] 1 A step of bleaching and decolorizing wood chips produced by crushing or cutting wood, adding a liquid thermosetting resin material and heating and hardening the heat-hardened chip mass; It consists of a process of cutting to obtain dry aggregate in the form of a fine powder of 300 μm or less, and a process of mixing this dry aggregate into a molding resin material in a proportion that corresponds to the purpose of molding and forming it. A method for molding a wood-like hardened resin molded product. 2. The wood-like reinforced resin molded product according to claim 1, wherein the water content in the aggregate is set within a range in which acidic gas or alkaline gas is not dissociated from the aggregate during resin molding. Molding method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57213652A JPS59103723A (en) | 1982-12-06 | 1982-12-06 | Forming process for reinforced resin formed product like wood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57213652A JPS59103723A (en) | 1982-12-06 | 1982-12-06 | Forming process for reinforced resin formed product like wood |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59103723A JPS59103723A (en) | 1984-06-15 |
JPS6245052B2 true JPS6245052B2 (en) | 1987-09-24 |
Family
ID=16642706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57213652A Granted JPS59103723A (en) | 1982-12-06 | 1982-12-06 | Forming process for reinforced resin formed product like wood |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59103723A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6428667U (en) * | 1987-08-10 | 1989-02-20 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2342614A (en) * | 1998-10-05 | 2000-04-19 | Joseph Roukin | Moulding process |
-
1982
- 1982-12-06 JP JP57213652A patent/JPS59103723A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6428667U (en) * | 1987-08-10 | 1989-02-20 |
Also Published As
Publication number | Publication date |
---|---|
JPS59103723A (en) | 1984-06-15 |
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