NO780972L - COMPOSITE PLASTIC PRODUCT, AND PROCEDURE FOR THE PREPARATION OF SUCH - Google Patents
COMPOSITE PLASTIC PRODUCT, AND PROCEDURE FOR THE PREPARATION OF SUCHInfo
- Publication number
- NO780972L NO780972L NO780972A NO780972A NO780972L NO 780972 L NO780972 L NO 780972L NO 780972 A NO780972 A NO 780972A NO 780972 A NO780972 A NO 780972A NO 780972 L NO780972 L NO 780972L
- Authority
- NO
- Norway
- Prior art keywords
- particles
- resin
- product
- phenol
- mold
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000002131 composite material Substances 0.000 title claims description 7
- 239000002245 particle Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 26
- 239000011347 resin Substances 0.000 claims description 26
- 229920001568 phenolic resin Polymers 0.000 claims description 21
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 20
- 239000006260 foam Substances 0.000 claims description 19
- 239000004794 expanded polystyrene Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001033 granulometry Methods 0.000 claims description 3
- 239000003377 acid catalyst Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003995 emulsifying agent Substances 0.000 claims 1
- 238000005187 foaming Methods 0.000 claims 1
- 239000004088 foaming agent Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000000047 product Substances 0.000 description 21
- 229920003987 resole Polymers 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/35—Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments
-
- 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
- B29C70/66—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 the filler comprising hollow constituents, e.g. syntactic foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2061/00—Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
- B29K2061/04—Phenoplasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
- B29K2105/165—Hollow fillers, e.g. microballoons or expanded particles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
Landscapes
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
Description
Foreliggende oppfinnelse gjelder et nytt, sammensatt produkt omfattende et skumprodukt, fortrinnvis ekspanderte polystyrenkuler, og en lett fenol-formaldehydharpiks. Oppfinnelsen gjelder også fremgangsmåte for fremstilling av det nevnte produkt. The present invention relates to a new, composite product comprising a foam product, preferably expanded polystyrene balls, and a light phenol-formaldehyde resin. The invention also applies to a method for producing the aforementioned product.
Det er allerede beskrevet en fremgangsmåte for fremstilling av plater eller andre formede gjenstander ved å støpe ekspanderte granuler eller perler av termoplastisk harpiks. A method for the production of plates or other shaped objects by casting expanded granules or beads of thermoplastic resin has already been described.
Under støpingen holdes granulene, eventuelt forhåndsoppvarmet,During casting, the granules are kept, possibly preheated,
ved en temperatur som er tilstrekkelig til at de ekspanderer og fester seg til hverandre på en slik måte at de danner et enkelt stykke. at a temperature sufficient for them to expand and adhere to each other in such a way as to form a single piece.
Det er likeledes for mange år siden beskrevet en fremgangsmåte for fremstilling av støpte legemer som erkarakterisertved at partikler av ekspandert eller ekspanderbart polystyren forbindes med hverandre ved hjelp av et passende adhesiv eller bindemiddel. Som adhesiv eller bindemiddel er det for over ti år siden foreslått å anvende varmeherdbare harpikser som for eksempel harpikser av urea, melamin, fenol, formaldehyd eller kresol/resorcinol/formaldehydharpikser. A method for the production of molded bodies was also described many years ago, which is characterized by particles of expanded or expandable polystyrene being connected to each other by means of a suitable adhesive or binder. As an adhesive or binder, it has been suggested over ten years ago to use heat-curable resins such as resins of urea, melamine, phenol, formaldehyde or cresol/resorcinol/formaldehyde resins.
De produkter som oppnås ved hjelp av disse fremgangs-måter oppviser imidlertid ikke samtidig de mekaniske og iso-lerende egenskaper som er ønskelig for mange anvendelser. However, the products obtained using these methods do not simultaneously exhibit the mechanical and insulating properties that are desirable for many applications.
Der er nå funnet et nytt sammensatt produkt som, sammen-lignet med kjente produkter av samme type , oppviser en kombinasjon av gode egenskaper, og dette produkt erkarakterisert vedat det består av et skum i form av elementærpartikler som er sammenbundet med hverandre av en lett fenol-formaldehydharpiks. A new composite product has now been found which, compared to known products of the same type, exhibits a combination of good properties, and this product is characterized by the fact that it consists of a foam in the form of elementary particles which are bound together by a light phenol -formaldehyde resin.
Skumpartiklene (eller de lette materialer) som kan anvendes ifølge oppfinnelsen er ekspanderte polystyrenkuler eller skumkuler av fenol-formaldehydharpiks eller ekspanderte glasskuler eller ekspanderte leirekuler eller ekspanderte kuler av steinmaterialereksempelvis av typen "perlitt". Det anvendes for-trinnsvis ekspanderte polystyrenkuler, kuler som har i hovedsak. The foam particles (or light materials) that can be used according to the invention are expanded polystyrene balls or foam balls of phenol-formaldehyde resin or expanded glass balls or expanded clay balls or expanded balls of stone materials, for example of the "perlite" type. Expanded polystyrene balls are preferably used, balls which mainly have.
sfærisk form og en diameter mellom ca. 0,8 og 10 mm.spherical shape and a diameter between approx. 0.8 and 10 mm.
Det er mulig å anvende skumpartikler av forskjellige typer (blanding av polystyren og ekspanderte glasskuler) og det er fordelaktig, for kontroll av egenskapene i sluttproduktet, å anvende blandinger av partikler med forskjellige dimensjoner (gjennomsnittsdiametre). It is possible to use foam particles of different types (mixture of polystyrene and expanded glass spheres) and it is advantageous, for control of the properties in the final product, to use mixtures of particles with different dimensions (average diameters).
Anvendelse av kuler med forskjellige dimensjoner gjørApplication of spheres of different dimensions does
det mulig å minske det naturlige tomrom mellom kulene så mye som mulig(før anvendelsen av harpiksen). I betongindustrien er det kjent en metode som kalles "Valette-metoden", hvilken muliggjør valg av hensiktsmessige dimensjoner på granulatet for å redusere mengden av hydraulisk bindemiddel som skal anvendes for å oppnå it possible to reduce the natural void between the spheres as much as possible (before the application of the resin). In the concrete industry, a method known as the "Valette method" is known, which enables the selection of appropriate dimensions of the granulate to reduce the amount of hydraulic binder to be used to achieve
en tett betong ved hjelp av granulatet. Ifølge oppfinnelsen anvendes eksempelvis en blanding av 1 volumdel ekspanderte polystyrenkuler med middeldiameter på 6 mm og 0,4 volumdel ekspanderte polystyrenkuler med middeldiameter nær 0,8 mm. a dense concrete using the granulate. According to the invention, for example, a mixture of 1 part by volume of expanded polystyrene balls with a mean diameter of 6 mm and 0.4 part by volume of expanded polystyrene balls with a mean diameter of close to 0.8 mm is used.
En fenolformaldehydharpiks med densitet på fra 50 tilA phenol formaldehyde resin with a density of from 50 to
500 kg/m 3kalles lett fenol-formaldehydharpiks. Den oppnås vanlig-vis ved begrenset ekspansjon av en resol med lav viskositet som inneholder et poredannende middel, som for eksempel freon. Denne resolharpiks inneholder likeledes fordelaktig et overflateaktivt middel som gjør det mulig å oppnå lukkede celler i det lette, ekspanderte harpiksen. Resolén inneholder selvsagt også et surt herdemiddel (katalysator) som sikrer at polykondensasjonsreaksjonen av resolen gir en lett harpiks. 500 kg/m 3 is called light phenol-formaldehyde resin. It is usually achieved by limited expansion of a low-viscosity resol containing a pore-forming agent, such as freon. This resol resin also advantageously contains a surfactant which makes it possible to achieve closed cells in the light, expanded resin. The resole naturally also contains an acid curing agent (catalyst) which ensures that the polycondensation reaction of the resole produces a light resin.
Den lette harpiksen fyller alle tomrom som finnes mellom skumpartiklene. The lightweight resin fills any voids that exist between the foam particles.
I produktene ifølge oppfinnelsen er skumpartiklene for-trinnsvis i kontakt med eller nær hverandre. I praksis er volumet av sluttmaterialet 5 til 25 % større enn det tilsynelatende, svellet volum av skumpartiklene. In the products according to the invention, the foam particles are preferably in contact with or close to each other. In practice, the volume of the final material is 5 to 25% greater than the apparent, swollen volume of the foam particles.
Dersom det ferdigstøpte produktet således eksempelvis skal ha et volum på 1 liter anvendes godt og vel 1 liter (tilsynelatende, svellet volum) av ekspanderte polystyrenkuler med 6 mm middeldiameter og, for å utfylle tomrommene mellom disse kulene, 0,2 til 0,4 liter ekspanderte polystyrenkuler med middeldiameter 0,8 mm og en mengde fenolformaldehydharpiks som er tilstrekkelig til, etter ekspansjon av denne harpiks, fylle de tomrom som er igjen mellom polystyrenkulene med en lett harpiks med en densitet mellom 50 og 500 g/l. If, for example, the finished product is to have a volume of 1 litre, use well and good 1 liter (apparent, swollen volume) of expanded polystyrene balls with a mean diameter of 6 mm and, to fill the voids between these balls, 0.2 to 0.4 liters expanded polystyrene balls with a mean diameter of 0.8 mm and an amount of phenol formaldehyde resin sufficient to, after expansion of this resin, fill the voids left between the polystyrene balls with a light resin with a density between 50 and 500 g/l.
Det er mulig å oppnå produkter med tilsynelatende regulert densitet innen visse grenser. For å oppnå dette kan man: - uten å forandre mengde og granulometri for kulene, variere densiteten til den lette harpiksen, - holde densiteten for den modifiserte harpiksen konstant, og variere granulometrien for kulene og mengden av de anvendte kulene (ved å modifisere mengden av de små kulene i forhold til It is possible to obtain products with apparently regulated density within certain limits. To achieve this, one can: - without changing the amount and granulometry of the balls, vary the density of the light resin, - keep the density of the modified resin constant, and vary the granulometry of the balls and the amount of the balls used (by modifying the amount of the small balls compared to
de store).the big ones).
Produktene ifølge oppfinnelsen har gode egenskaper nårThe products according to the invention have good properties when
det gjelder motstandsevne mot ild, mekanisk motstandsevne i be-traktning av deres densitet og varmeisolasjon (denne er ofte lavere enn 0,035 kcal/m/h°C). De foreligger i form av blokker hvor det ikke er tomrom som kommuniserer med hverandre, hvilket gjør at disse produktene ikke absorberer vann og tillater støping, på it concerns resistance to fire, mechanical resistance in consideration of their density and thermal insulation (this is often lower than 0.035 kcal/m/h°C). They are in the form of blocks where there are no voids that communicate with each other, which means that these products do not absorb water and allow casting, on
alle overflatene av produktet, av harpikser, fylt eller ikke, uten at disse harpikser trenger inn i produktene. all the surfaces of the product, of resins, filled or not, without these resins penetrating into the products.
Oppfinnelsen gjelder også en fremgangsmåte for fremstilling av de ovenfor beskrevne nye produkter. Denne fremgangsmåte erkarakterisert vedat en gitt mengde emulgert resol inneholdende nødvendige ingredienser (herder, poredanner , overflateaktivt middel) injiseres i et lag av skumpartikler, på forhånd plassert i en form, temperaturen i formen heves så på en slik måte at det oppnås en ekspansjon og polykondensasjon av fenol-formaldehydresol-en slik at formen.akkurat fylles, uten å nå en temperatur som gir en eventuell smeltning av skumpartiklene. The invention also relates to a method for producing the new products described above. This method is characterized by the fact that a given amount of emulsified resol containing the necessary ingredients (hardener, pore former, surfactant) is injected into a layer of foam particles, previously placed in a mold, the temperature in the mold is then raised in such a way that an expansion and polycondensation is achieved of the phenol-formaldehyde resol so that the mold is just filled, without reaching a temperature that causes a possible melting of the foam particles.
Det bemerkes at skumpartikkelkulene aldri underkastesIt is noted that the foam particle balls are never submitted
trykk under fremstillingen av produktet, unntatt eventuelt når partiklene plasseres i støpeformen, og dette trykk (svakt) brukes da for å redusere volumet av disse partikler. pressure during the manufacture of the product, except possibly when the particles are placed in the mould, and this (weak) pressure is then used to reduce the volume of these particles.
Skjønt det kan brukes skumpartikler som ikke er belagt, består den forbedrede fremgangsmåte ifølge oppfinnelsen i å gjennomføre forhåndsbelegning av disse partikler ved hjelp av en harpiksemulsjon og innføre disse forhåndsbelagte partikler i støpeformen før ekspansjonen av harpiksen gjennomføres. Although uncoated foam particles can be used, the improved method according to the invention consists in carrying out pre-coating of these particles by means of a resin emulsion and introducing these pre-coated particles into the mold before the expansion of the resin is carried out.
Oppvarmingen av fenol-formaldehydharpiksen for å fjennom-føre ekspansjonen og nettdannelsen av fenol-formaldehydharpiksen kan utføres på enhver kjent måte. Det bemerkes imidlertid at det i tilfelle av at skumpartiklene opprinnelig (belagt eller ikke) fyller støpeformen helt, er mulig og også meget fordelaktig å ut-føre nevnte oppvarming ved hjelp av høyfrekvent strøm. The heating of the phenol-formaldehyde resin to effect the expansion and cross-linking of the phenol-formaldehyde resin can be carried out in any known manner. It is noted, however, that in the event that the foam particles originally (coated or not) completely fill the mold, it is possible and also very advantageous to carry out said heating using high-frequency current.
Det er under utførelsen av oppfinnelsen konstatert atDuring the execution of the invention it has been established that
de oppnådde produkter selv i betydelig tykkelse oppviser meget stor homogenitet. Av dette fremgår det at ikke bare skumpartiklene er perfekt og jevnt fordelt i hele det støpte volum, men at også cellene i den lette fenol-formaldehydharpiks er helt jevne. Det siste fenomen kommer antagelig av at nevnte lette harpiks aldri forekommer i betydelig tykkelse. the products obtained, even in considerable thickness, exhibit very high homogeneity. From this it appears that not only are the foam particles perfectly and evenly distributed throughout the molded volume, but that the cells in the light phenol-formaldehyde resin are also perfectly even. The latter phenomenon presumably comes from the fact that said light resin never occurs in significant thickness.
Oppfinnelsen muliggjør fremstilling av støpte deler med meget avvekslende former som utgjør produktene ifølge oppfinnelsen. Dersom det spesielt er anbrakt glassmatter eller -vev i det indre av eller på overflaten av formen, impregnerer feno1-formaldehydharpiksen (da anvendt i mengder som er litt større enn.de som er beskrevet ovenfor) disse matter eller, vev, og det oppnås direkte et sammensatt produkt med interessante egenskaper. Det kan likeledes fremstilles stykker som omfatter forsterkningselementer eller tilsetninger av forskjellig natur beliggende inne i eller for-trinnsvis på overflaten av produktene ifølge oppfinnelsen. Det kan også anbringes dekorative elementer på overflaten av produktene ifølge oppfinnelsen. The invention enables the production of molded parts with very varied shapes which make up the products according to the invention. If, in particular, glass mats or fabrics have been placed in the interior of or on the surface of the mold, the phenol-formaldehyde resin (when used in quantities slightly greater than those described above) impregnates these mats or fabrics, and it is obtained directly a complex product with interesting properties. It is also possible to produce pieces which comprise reinforcement elements or additives of different nature located inside or preferably on the surface of the products according to the invention. Decorative elements can also be placed on the surface of the products according to the invention.
Det kan likeledes og på meget fordelaktig måte fremstilles lette artikler ved å anbringe stive eller myke,, porøse plater , Light articles can also be produced in a very advantageous manner by placing rigid or soft, porous plates,
inne i artiklene ifølge oppfinnelsen, hvilke plater også er frem-. stilt ved hjelp av skumpartikler (eksempelvis plater fremstilt ved agglomerering av ekspanderte polystyrenperler). Ved å bruke et lite overskudd av fenol-formaldehydharpiks trenger denne under sin ekspansjon inn i tomrommene i de porøse plater og danner et sammensatt materiale med meget interessante egenskaper. inside the articles according to the invention, which plates are also forward-. set by means of foam particles (for example plates produced by agglomeration of expanded polystyrene beads). By using a small excess of phenol-formaldehyde resin, this penetrates during its expansion into the voids in the porous plates and forms a composite material with very interesting properties.
Følgende eksempler illustrerer oppfinnelsen.The following examples illustrate the invention.
Eksempel 1Example 1
En form med indre volum på 1000 1 (med dimensjoneneA mold with an internal volume of 1000 1 (with the dimensions
2,5 x 4 m x 0,1 m) fylles ved hjelp av venturirør med en blanding av 100 1 ekspanderte polystyrenkuler (densitet 12 kg/m 3), med middeldiameter 6 mm, og 400 1 ekspanderte polystyrenkuler (densitet 20 kg/m ) med middeldiameter 0,6 mm. I denne form injiseres ca. 40 kg emulgert fenol-formaldehydharpiks bestående av 30 kg resol, 3 kg herder (syre), 7 kg poredanner (freon) og 30 g overflateaktivt middel. Blandingen oppvarmes ved 45°C i ca. 1 time. Den oppnådde plate tas ut av formen og modnes i varmeskap i ca. 2.5 x 4 m x 0.1 m) is filled using a venturi tube with a mixture of 100 1 expanded polystyrene balls (density 12 kg/m 3 ), with a mean diameter of 6 mm, and 400 1 expanded polystyrene balls (density 20 kg/m ) with mean diameter 0.6 mm. In this form, approx. 40 kg of emulsified phenol-formaldehyde resin consisting of 30 kg of resol, 3 kg of hardener (acid), 7 kg of pore former (freon) and 30 g of surfactant. The mixture is heated at 45°C for approx. 1 hour. The resulting plate is removed from the mold and matures in a warming cabinet for approx.
2 timer ved opp til 70°C.2 hours at up to 70°C.
Eksempler 2 til 6Examples 2 to 6
Den teknikk som brukes i disse eksempler, er den nevnte med forhåndsbelegning som består i at de ekspanderte polystyrenkulene (densitet 12 kg/m 3) belegges i en forhåndsoperasjon ved hjelp av en viss mengde fenol-formaldehydharpiks i form av en emulsjon som inneholder et poredannende middel (eksempelvis 20-30 vekt% freon i forhold til harpiksen), et overflateaktivt middel The technique used in these examples is the one mentioned with pre-coating which consists in the expanded polystyrene spheres (density 12 kg/m 3 ) being coated in a pre-operation using a certain amount of phenol-formaldehyde resin in the form of an emulsion containing a pore-forming agent (for example 20-30% by weight freon in relation to the resin), a surfactant
(brukt eksempelvis i en mengde av 1-3 vekt% beregnet på harpiksen)(used for example in an amount of 1-3% by weight calculated on the resin)
og en syrekatalysator (eksempelvis anvendt i en mengde av 2-10vekt% beregnet på harpiksen). Deretter tilføres i en annen operasjon disse belagte kuler til en form, formen lukkes og materialet som befinner seg i formen oppvarmes ved hjelp av høy-frekvent strøm (27 kHz avgitt av metallplatene). Oppvarmings-varigheten er vesentlig kortere enn i den klassiske teknikk, siden denne varighet er av størrelsesorden ett minutt. and an acid catalyst (for example used in an amount of 2-10% by weight calculated on the resin). Then, in another operation, these coated spheres are fed into a mold, the mold is closed and the material in the mold is heated using high-frequency current (27 kHz emitted by the metal plates). The heating duration is significantly shorter than in the classical technique, since this duration is of the order of one minute.
Det oppnås således ved å variere mengden av kuler en harpiksplate som oppviser følgende egenskaper: Thus, by varying the amount of spheres, a resin plate is obtained which exhibits the following properties:
Eksempel 7 Example 7
Det fremstilles en sammensatt plate som har en glassmatte på begge sider og et materiale ifølge oppfinnelsen i sentrum. Først plasseres en glassmatte på bunnen av formen (matte med 300 g/m<2>og tykkelse ca. 0,7 mm). Deretter avsettes en normal mengde ifølge oppfinnelsen av polystyren-kuler, forhåndsbelagt med en emulsjon av fenol-formaldehydharpiks, på matten (som beskrevet i eksempel 2), og det tilsettes ytterligere en mengde fenol-formaldehydharpiks-emulsjon på o ca. 1,2 kg harpiks pr. m 2 plate som skal fremstilles. Deretter plasseres en annen glassmatte, identisk med den første, A composite plate is produced which has a glass mat on both sides and a material according to the invention in the centre. First, a glass mat is placed on the bottom of the mold (mat with 300 g/m<2> and thickness approx. 0.7 mm). Then, a normal amount according to the invention of polystyrene balls, pre-coated with an emulsion of phenol-formaldehyde resin, is deposited on the mat (as described in example 2), and a further amount of phenol-formaldehyde resin emulsion of o approx. 1.2 kg of resin per m 2 plate to be produced. Then another glass mat, identical to the first, is placed,
på overflaten over kulene, formen lukkes og det hele underkastes oppvarming (eksempelvis opp imot 40-50°C) slik at fenol-formaldehydharpiksen oppskummes og nettdannes. on the surface above the balls, the mold is closed and the whole is subjected to heating (for example up to 40-50°C) so that the phenol-formaldehyde resin foams and forms a net.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7708250A FR2401191A1 (en) | 1977-03-18 | 1977-03-18 | NEW COMPOSITE PRODUCT BASED ON POLYSTYRENE FOAM AND LIGHTENED FORMO-PHENOLIC RESIN |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO780972L true NO780972L (en) | 1978-09-19 |
Family
ID=9188316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO780972A NO780972L (en) | 1977-03-18 | 1978-03-17 | COMPOSITE PLASTIC PRODUCT, AND PROCEDURE FOR THE PREPARATION OF SUCH |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS53115775A (en) |
| BE (1) | BE865001A (en) |
| BR (1) | BR7801659A (en) |
| CA (1) | CA1109598A (en) |
| DE (1) | DE2811347A1 (en) |
| DK (1) | DK121378A (en) |
| EG (1) | EG13152A (en) |
| ES (1) | ES467991A1 (en) |
| FR (1) | FR2401191A1 (en) |
| GB (1) | GB1601013A (en) |
| GR (1) | GR63108B (en) |
| IT (1) | IT1111452B (en) |
| LU (1) | LU79248A1 (en) |
| NL (1) | NL7802855A (en) |
| NO (1) | NO780972L (en) |
| OA (1) | OA05912A (en) |
| PT (1) | PT67766A (en) |
| SE (1) | SE7803037L (en) |
| ZA (1) | ZA781584B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2132554B (en) * | 1982-12-17 | 1986-10-01 | British United Shoe Machinery | Shoe insole and the manufacture thereof |
| JPS59155016A (en) * | 1983-02-23 | 1984-09-04 | Sekisui Plastics Co Ltd | Manufacture of composite body that consists of phenolic resin and foam |
| USRE33986E (en) * | 1984-05-11 | 1992-07-07 | Method of manufacturing fire retardant polystyrene insulating board | |
| EP0237596A1 (en) * | 1986-03-18 | 1987-09-23 | Benjamin Mosier | Fire retardant polystyrene insulating board |
| EP0215652A3 (en) * | 1985-09-19 | 1988-07-27 | Geoffrey Crompton | Components that can exhibit low smoke, toxic fume and burning characteristics, and their manufacture |
| DE3545521A1 (en) * | 1985-12-20 | 1987-07-02 | Ipa Bauchemie Gmbh | DEFORMABLE MOLDED BODY AND USE THEREOF AND METHOD FOR THE PRODUCTION THEREOF |
| AT401757B (en) * | 1994-04-07 | 1996-11-25 | Greiner & Soehne C A | MULTI-LAYER COMPONENT MADE OF THERMALLY DEFORMABLE PLASTIC FOAM |
| GB9504028D0 (en) * | 1995-02-28 | 1995-04-19 | Kovacs Laszlo | Additive to expanded foam |
| GB2362586B (en) * | 2000-05-24 | 2003-11-12 | Prometheus Developments Ltd | Fire stable expanded polystyrene foam materials |
| JP2001342281A (en) * | 2000-05-30 | 2001-12-11 | Takashi Fujimori | Molded product composed of resin foam and solid particle and method for producing the same |
| AU2003294511A1 (en) * | 2002-12-23 | 2004-07-14 | Josef Hrovath | Core or support element |
| WO2018112504A1 (en) * | 2016-12-23 | 2018-06-28 | Matrix Composites And Engineering Ltd | Composite material |
-
1977
- 1977-03-18 FR FR7708250A patent/FR2401191A1/en active Granted
-
1978
- 1978-03-13 PT PT67766A patent/PT67766A/en unknown
- 1978-03-14 GR GR55705A patent/GR63108B/en unknown
- 1978-03-15 EG EG175/78A patent/EG13152A/en active
- 1978-03-16 NL NL7802855A patent/NL7802855A/en not_active Application Discontinuation
- 1978-03-16 LU LU79248A patent/LU79248A1/en unknown
- 1978-03-16 SE SE7803037A patent/SE7803037L/en not_active Application Discontinuation
- 1978-03-16 DE DE19782811347 patent/DE2811347A1/en not_active Withdrawn
- 1978-03-17 CA CA299,206A patent/CA1109598A/en not_active Expired
- 1978-03-17 DK DK121378A patent/DK121378A/en unknown
- 1978-03-17 GB GB10752/78A patent/GB1601013A/en not_active Expired
- 1978-03-17 ZA ZA00781584A patent/ZA781584B/en unknown
- 1978-03-17 IT IT67605/78A patent/IT1111452B/en active
- 1978-03-17 BE BE2056775A patent/BE865001A/en not_active IP Right Cessation
- 1978-03-17 NO NO780972A patent/NO780972L/en unknown
- 1978-03-17 OA OA56439A patent/OA05912A/en unknown
- 1978-03-17 BR BR7801659A patent/BR7801659A/en unknown
- 1978-03-17 ES ES467991A patent/ES467991A1/en not_active Expired
- 1978-03-17 JP JP3160878A patent/JPS53115775A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| OA05912A (en) | 1981-06-30 |
| GB1601013A (en) | 1981-10-21 |
| IT1111452B (en) | 1986-01-13 |
| EG13152A (en) | 1980-10-31 |
| DK121378A (en) | 1978-09-19 |
| CA1109598A (en) | 1981-09-22 |
| DE2811347A1 (en) | 1978-09-21 |
| GR63108B (en) | 1979-09-05 |
| ES467991A1 (en) | 1978-12-01 |
| JPS53115775A (en) | 1978-10-09 |
| FR2401191A1 (en) | 1979-03-23 |
| PT67766A (en) | 1978-04-01 |
| BR7801659A (en) | 1979-01-02 |
| LU79248A1 (en) | 1978-06-29 |
| IT7867605A0 (en) | 1978-03-17 |
| ZA781584B (en) | 1979-03-28 |
| SE7803037L (en) | 1978-09-19 |
| NL7802855A (en) | 1978-09-20 |
| FR2401191B1 (en) | 1980-04-18 |
| BE865001A (en) | 1978-09-18 |
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