CN1566189A - Heat-resistant weather-resistant excellent insulating resin composition and insulated wire - Google Patents
Heat-resistant weather-resistant excellent insulating resin composition and insulated wire Download PDFInfo
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- CN1566189A CN1566189A CN 03148930 CN03148930A CN1566189A CN 1566189 A CN1566189 A CN 1566189A CN 03148930 CN03148930 CN 03148930 CN 03148930 A CN03148930 A CN 03148930A CN 1566189 A CN1566189 A CN 1566189A
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Abstract
The invention discloses a heat-resistant weather-resistant excellent insulating resin composition and insulated wire, wherein the composition comprises resin (A) with olefin resin and/or vinyl copolymer and/or phenylethene segmented copolymer as main constituent, the metallic hydrate of silicane coupling agent surface treatment, which is selected from, (1) hindered phenolic antioxidant, diphenyl ketone and/or azimido-benzene ultraviolet absorbent, hindered amine light stabilizer, (2) hindered phenolic antioxidant, diphenyl ketone ultraviolet absorbent, hindered amine light-stability agent, (3) any one of hindered phenolic antioxidant, sulfide anti-oxidant, diphenyl ketone and/or azimido-benzene ultraviolet absorbent, hindered amine light-stability agent, (4) organic peroxide, (5) methacrylate ester and/or allyl group cross linking agent.
Description
Technical field
The present invention relates to when waste treatments such as landfill, burning, not produce metallic compound stripping and a large amount of cigarettes, the insualtion resin composition of corrosive gases.In addition, the present invention relates to the insulated line that in electric and electronic inside and outside wiring, uses.
Prior art
To the insulated line that uses in electric and electronic inside and the outside wiring, require it to have flame retardant resistance, tensile properties, thermotolerance etc. and plant specific character.Therefore, as the coating material of these insulated lines, the known resin combination that can adopt the ethene multipolymer that cooperated the halogen flame that contains bromine atoms or chlorine atom in polyvinyl chloride (PVC) mixture or the molecule as principal constituent.
In recent years, the insulated line that adopts this coating material will produce variety of issue as suitably not handling when just discarding in addition.For example, when discarding by landfill, the softening agent and the heavy metal stabilizer that are engaged in the coating material produce stripping, and when burning, produce problems such as macro-corrosion gas, dioxin.
Therefore, adopt not produce the technology that deleterious heavy metal and halogen are the non-halogen fire retardant coated electric wire of gas etc., actively inquire into.
Existing non-halogen fire-retardant material, be by not halogen-containing fire retardant is coupled to the material that presents flame retardant resistance in the resin, fire retardant as this coating material, for example, can use metal hydrates such as magnesium hydroxide, aluminium hydroxide, in addition, as resin, can adopt polyethylene, ethene-butene-1 copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-propylene-diene terpolymer etc.
Solve the problem of invention
To the electrical harnesses of using in the electronic machine, consider from the security aspect, require it to have high flame retardant, must strictly reach very strict flame-retardancy standards UL1581 (Reference Standard forElectrical Wires, Cables, and Flexible Cords) the 60 degree inclination flame retardant resistances of stipulating among the VW-1 standard of the testing vertical flammability (VerticalFlame Test) of regulation and horizontal flame-retardant standard, the JIS C3005 such as.And, about the characteristic beyond the flame retardant resistance, adopt UL and electrical appliance administrative standard etc., require it to have tension set 100%, the above high mechanical characteristics of fracture tension stress 10MPa.
The halogen-free flame-retardant material in order to ensure above-mentioned flame retardant resistance, can keep flame retardant resistance by the metal hydrate that above-mentioned resinous principle is added more than the equivalent degree.
But, heavy addition the resin combination of metal hydrate and the electric wire that adopts said composition, the weathering resistance significance difference can not be used for outdoor or the illumination distribution.
Before this, when outdoor application has been covered the electric wire of non-halogen fire-retardant material, can improve weathering resistance by adding powdered carbon, but when various distributions such as the system distribution that throws light on, the multicolor of electric wire is indispensable, can not use problems such as non-halogen electric wire so exist in this field.
The objective of the invention is to address these problems, and provide a kind of insualtion resin composition with following properties and with the insulated line of said composition as coating material: have the insulated line requirement high flame retardant and excellent thermotolerance, weathering resistance and mechanical characteristics, can be coloured to random color, keep electrical specifications such as electrical insulating property, keep oil-proofness and also not produce the stripping of heavy metal compound and phosphorus compound when discarded, also do not produce a large amount of cigarettes and corrosive gases etc. when burning by landfill.
Be used to solve the measure of this problem
What the inventor concentrated one's attention on to inquire into found that, use the metal hydrate of handling through the bridging property silane finish as metal hydrate, and the hindered phenol that adds specified quantitative be oxidation inhibitor (in case of necessity, with thioether be oxidation inhibitor and with), benzophenone series and/or benzotriazole be that UV light absorber and hindered amine are photostabilizer, whereby, can obtain the non-halogen insualtion resin composition of weathering resistance, excellent heat resistance and with the insulated line of said composition as coating material.Finish the present invention based on this discovery.
That is, the invention provides,
(1) a kind of insualtion resin composition is characterized in that, it is the mixture that contains following composition, and adds hot milling and make more than the melt temperature of above-mentioned thermoplastic resin composition (A), that is,
With respect to polyolefin resin and/or vinyl copolymer and/or polystyrene block copolymerization as resinous principle (A) 100 mass parts of principal constituent, contain:
Carried out surface-treated metal hydrate 60～300 mass parts through the bridging property silane coupling agent;
Be selected from following (i), (ii) or (iii) any a kind:
(i) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series and/or benzotriazole are that UV light absorber 0.4～8 mass parts and hindered amine are photostabilizer 1～7 mass parts,
(ii) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series UV light absorber 0.8～8 mass parts and hindered amine are photostabilizer 1～7 mass parts, or
(iii) hindered phenol is oxidation inhibitor 1～8 mass parts, the thioether represented with the structure of following formula (1) is that oxidation inhibitor 0.8～8 mass parts, benzophenone series and/or benzotriazole are that UV light absorber 0.4～8 mass parts and hindered amine are photostabilizer 1～7 mass parts;
[Chemical formula 2]
(in the formula (1), R
1The expression alkyl)
(g) organo-peroxide 0.01～1.0 mass parts; And
(h) (methyl) acrylic ester and/or allyl base system crosslinking coagent 0.03～1.8 mass parts;
(2) insualtion resin composition described in (1) item, it is characterized in that, with respect to above-mentioned resinous principle (A) 100 mass parts, containing above-mentioned (i) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series and/or benzotriazole are that UV light absorber 0.4～8 mass parts and hindered amine are photostabilizer 1～7 mass parts;
(3) insualtion resin composition described in (1) item, it is characterized in that, with respect to above-mentioned resinous principle (A) 100 mass parts, containing above-mentioned (ii) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series UV light absorber 0.8～8 mass parts and hindered amine are photostabilizer 1～7 mass parts;
(4) insualtion resin composition described in (1) item, it is characterized in that, with respect to above-mentioned resinous principle (A) 100 mass parts, the thioether that to contain above-mentioned (iii) hindered phenol be oxidation inhibitor 1～8 mass parts, represent with the structure of following formula (1) is that oxidation inhibitor 0.8～8 mass parts, benzophenone series and/or benzotriazole are that UV light absorber 0.4～8 mass parts and hindered amine are photostabilizer 1～7 mass parts;
(5) a kind of insulated line is characterized in that, any 1 described insualtion resin composition in (1)～(4) is overlayed on around conductor or the optical fiber and constitutes;
(6) a kind of insulated line is characterized in that, any 1 described insualtion resin composition in (1)～(4) is overlayed on around conductor and/or the optical fiber, and make this lining portion resin combination crosslinked and constitute.
Add metal hydrate 60 mass parts such as magnesium hydroxide when above in polyolefin resin or vinyl copolymer, weathering resistance significantly descends.Usually, as the weathering resistance prescription, be with respect to polymkeric substance 100 mass parts, adding benzotriazole is that UV light absorber 0.2～0.4 mass parts, hindered amine are about photostabilizer 0.4 mass parts.
Yet, when adding above-mentioned metal hydrate 60 mass parts in this weathering resistance prescription, fully to no effect, deterioration takes place.This is that the surface treatment agent deterioration of polymkeric substance and metal hydrate produces defective between metal hydrate and polymkeric substance because under light actions such as ultraviolet ray, becomes the reason of unit elongation reduction and stress rupture.
Adopt the metal hydrate of handling through the bridging property silane finish as metal hydrate in the present invention, make metal hydrate and polymer-bound with silane coupling agent, usually, when using the 0.1 mass parts left and right sides with respect to resinous principle 100 mass parts as antiaging agent, be oxidation inhibitor by the hindered phenol that adds more than at least 1 mass parts again, 0.4 above benzophenone and/or the benzotriazole of mass parts is UV light absorber, hindered amine is more than photostabilizer 1 mass parts, then can make this be bonded in light long duration of action such as ultraviolet ray even deterioration takes place down also can repair, so can be suppressed to minimum to the defective between metal hydrate and the polymkeric substance, thereby elongation and stress rupture not take place.Particularly, by adding the benzophenone series UV light absorber, can further improve weathering resistance.In addition, at least the thioether that adds with formula (1) expression is oxidation inhibitor 0.8 mass parts, adding benzophenone series and/or benzotriazole again is more than UV light absorber 0.8 mass parts, can not only have been kept thermotolerance but also have the non-halogen mixture of excellent resistance to weathering.
Invention embodiment
Below the present invention is described in detail.
At first, composition contained in the resin combination of the present invention and function are illustrated.
(A) thermoplastic resin
The thermoplastic resin (A) that uses as principal constituent in resin combination of the present invention is polyolefin resin and/or vinyl copolymer and/or styrene block copolymer.
(A-1) polyolefin resin
As polyolefin resin, can enumerate acrylic resin, ethene-alpha-olefin resin, polyethylene etc.
As operable polypropylene-based resin among the present invention, can enumerate homo-polypropylene, ethylene, propylene random copolymers, ethylene, propylene segmented copolymer, and the multipolymer of propylene and other a small amount of alpha-olefins (for example, 1-butylene, 1-hexene, 4-methyl-1-pentene etc.) etc.These polypropylene-based resins both can use a kind, also can mix use more than 2 kinds.
Ethylene, the multipolymer of the alpha-olefin of optimal ethylene and carbonatoms 3～12 as the object lesson of alpha-olefin, can be enumerated propylene, 1-butylene, 1-hexene, 4-methyl-1-pentene, 1-octene, 1-decene, 1-dodecylene etc.
As ethylene, have LLDPE (straight-chain low density polyethylene), LDPE (new LDPE (film grade)), VLDPE (ultra-low density polyethylene), EPR, EBR, and in the presence of single-point catalyst synthetic ethylene etc.Wherein, the synthetic ethylene is preferred in the presence of single-point catalyst.
There is synthetic ethylene down in single-point catalyst in the present invention, can adopt the spy to open the own perception method manufacturing of record in flat 6-306121 communique and the flat 7-500622 communique of special table etc. as its method for making.
The feature of single-point catalyst is, the polymerization activity point is single, and is to have high polymerization activity, is also referred to as metalloscene catalyst, chemistry (カ ミ Application ス キ one) catalyzer, with catalyzer synthetic ethylene, molecular weight distribution and composition narrowly distributing.
The synthetic ethylene is because of having high tensile strength, tear strength, shock strength etc. in the presence of this single-point catalyst, so, when using in the non-halogen fire-retardant material (coating material of wiring material) of necessary a large amount of filler metal hydrates, the advantage that has is to make the mechanical characteristics reduction little because of the metal hydrate that uses a large amount of fillings.
As use in the present invention, in the presence of single-point catalyst the synthetic ethylene, oneself is through commercially available having: " カ-ネ Le " (trade(brand)name) of " EXACT " (trade(brand)name) that " AFFINITY " " ENGAGE " (trade(brand)name) that Dow Chemical company makes, Exxon Chemical company make, the manufacturing of Japanese Port リ ケ system.
(A-2) vinyl copolymer
Object lesson as operable vinyl copolymer among the present invention, for example, can enumerate ethylene-vinyl acetate copolymer (EVA), ethylene-methacrylic acid copolymer, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer (EEA), ethylene-methyl acrylate multipolymer (EMA) etc.These both available a kind, also can mix use more than 2 kinds.In addition, in vinyl copolymer, consider that from improving flame retardant resistance and weathering resistance it is preferred using ethylene-vinyl acetate copolymer (EVA).
Can confirm the raising of weathering resistance when particularly using acid content to be the vinyl copolymer of 20～50 quality %.When using acid content to be lower than the ethylene copolymer of 20 quality % or polyolefin-based resins, when under the state at stress application during time exposure, material easily produces be full of cracks, still, when using the vinyl copolymer of acid content 20～50 quality %, can suppress the generation of chapping significantly.The acid content of preferred vinyl copolymer is 22～45 quality %, more preferably 25～45 quality %, especially preferred 25～40 quality %.
(A-3) styrene block copolymer
The styrene block copolymer of composition of the present invention, can enumerate with at least 2 the polymer blocks As of ethylene series aromatic compound as its constituent main body, with the segmented copolymer that constitutes as at least 1 polymer blocks B of its constituent main body with conjugated diene compound, perhaps, the product that its hydrogenation is obtained, or their mixture, for example have A-B-A, B-A-B-A, the isostructural ethylene series aromatic compound of A-B-A-B-A-conjugated diene compound segmented copolymer, perhaps, their hydrogenation products etc.Above-mentioned (hydrogenation) segmented copolymer (below, so-called (hydrogenation) segmented copolymer means segmented copolymer and/or hydrogenation segmented copolymer), contain ethylene series aromatic compound 5～60 quality % usually, preferred 20～50 quality %.
With the ethylene series aromatic compound preferably as the polymer blocks A of its constituent main body, only constitute by the ethylene series aromatic compound, or greater than 50 quality %, ethylene series aromatic compound more than the preferred 70 quality % and (through hydrogenation) conjugated diene compound (below, so-called (through hydrogenation) conjugated diene compound means conjugated diene compound and/or added the conjugated diene compound of hydrogen) copolymer block.With (through hydrogenation) conjugated diene compound preferably as the polymer blocks B of its constituent main body, only constitute by (through hydrogenation) conjugated diene compound, or greater than 50 quality %, (through hydrogenation) conjugated diene compound more than the preferred 70 quality % and the copolymer block of ethylene series aromatic compound.With these ethylene series aromatic compounds as the polymer blocks A of its constituent main body, with (through hydrogenation) conjugated diene compound as the polymer blocks B of its constituent main body separately in, from the distribution of the repeating unit of the ethylene series aromatic compound in the molecular chain or (through hydrogenation) conjugated diene compound, also can be random, (monomer component increases or reduces along molecular chain) of wedge shape, a part of block-wise or their arbitrary combination.Having 2 when above as the polymer blocks A of its constituent main body or with (through hydrogenation) conjugated diene compound as the B block of its constituent main body with the ethylene series aromatic compound, can be identical structure or different structures separately.
As the ethylene series aromatic compound that constitutes (hydrogenation) segmented copolymer, for example, can from vinylbenzene, alpha-methyl styrene, Vinyl toluene, p-t-butyl styrene etc., select more than a kind or 2 kinds, wherein, vinylbenzene is preferred.In addition, as conjugated diene compound, for example, and can be from divinyl, isoprene, 1,3-pentadiene, 2, select more than a kind or 2 kinds in 3-dimethyl-1,3-butadiene etc., wherein, divinyl, isoprene and composition thereof are preferred.
Can select arbitrarily as the microstructure among the polymer blocks B of its constituent main body with conjugated diene compound.For example, in polybutadiene block, 1, the 2-microstructure is 20～50%, particularly 25～45%, preferred, be preferred based on aliphatic double bonds hydrogenation at least 90% person of divinyl.In poly-isobutyl diene block, 70～100 quality % of this isobutyl diolefin have 1, the 4-microstructure, and, based at least 90% hydrogenation of the aliphatic double bonds of this isobutyl diolefin be preferred.
Weight-average molecular weight with (hydrogenation) segmented copolymer used among the present invention of said structure, preferred 5,000～1,500,000, more preferably 10,000～550,000, especially preferred 100,000～550,000, preferred especially 100,000～400,000 scope.Molecular weight distribution (ratio (Mw/Mn) of weight-average molecular weight (Mw) and number-average molecular weight (Mn)) is preferred below 10, and is more preferably below 5, especially preferred below 2.The molecular structure of (hydrogenation) segmented copolymer can be straight chain, side chain, radial or their any a kind of arbitrary combination.
As the own several different methods that proposes of the manufacture method of these (hydrogenation) segmented copolymers, but as representational method, for example, according to the method for putting down in writing in the public clear 40-23798 communique of spy, be to adopt lithium catalyst or Ziegler-type catalyst, in inert solvent, make the method for carrying out block polymerization and obtaining segmented copolymer.In addition, for example in the segmented copolymer that adopts aforesaid method to obtain, in inert solvent, in the presence of hydrogenation catalyst, pass through hydrogenation, can obtain the hydrogenation segmented copolymer.
As the object lesson of above-mentioned (hydrogenation) segmented copolymer, can enumerate SBS (styrene butadiene block copolymer), SIS (styrene isoprene segmented copolymer), SEBS (hydrogenation SBS), SEPS (hydrogenation SIS) etc.In the present invention, particularly preferred (hydrogenation) segmented copolymer is, by with the polymer blocks A of vinylbenzene as its constituent main body, with have 1 with isoprene as 70～100 quality % of its constituent main body and isoprene, the 4-microstructure, and based on the weight-average molecular weight that the aliphatic double bonds at least 90% hydrogenation resulting polymers B block of this isoprene constitutes 50,000～550,000 hydrogenation segmented copolymer.More preferably, 90～100 quality % of isobutyl diene have 1, the above-mentioned hydrogenation segmented copolymer of 4-microstructure.
(A-4) non-aromatic is a softener of rubber
When using styrene block copolymer in resinous principle of the present invention, can adopt non-aromatic is mineral oil, perhaps the synthetic tenderizer of liquid state or lower molecular weight.
Be used as the mineral oil softener that rubber is used, it is the mixture of aromatic ring, cycloparaffin series's ring and paraffinic hydrocarbon chain three combination, and the difference on its address is, paraffin series refers to the paraffin series more than 50% that paraffin series chain carbon atom number accounts for total carbon atom number, and naphthene series refers to cycloparaffin series's ring carbon atom number and accounts for 30～50% naphthenic hydrocarbon, aromatic series and refer to the aromatic series carbonatoms and account for aromatic hydrocarbons more than 30%.
The mineral oil that uses as composition of the present invention (A-4) is Rubber Softener, is paraffinic hydrocarbon system and the softening thing of cycloalkanes hydrocarbon system that adopts above-mentioned differentiation.Fragrance family tenderizer because its use, make composition (a) thus solvable, hinder crosslinking reaction, the raising that can not seek the rerum natura of resultant composition is not preferred.As composition (A-4), the paraffin hydrocarbon system is preferred, and in the paraffin hydrocarbon system aromatic component few be particularly preferred.
These non-aromatics are the proterties of Rubber Softener, are that 20～500cSt, yield point are that-10～-15 ℃, point of ignition (COC) are that 170～300 ℃ of persons are preferred 37.8 ℃ dynamic viscosities.
As other polyolefin resin, other resinous principles beyond the vinyl copolymer, in order to give intensity, give flame retardant resistance and to give flexibility, can add resin or rubber constituents such as polyolefin resin by carboxylic acid anhydride modified, styrene series elastomer, acrylic rubber.
So-called resinous principle (A) among the present invention, mean polyolefin resin (A-1), vinyl copolymer (A-2), styrene block copolymer (A-3) and non-aromatic be softener of rubber (A-4) in addition, also comprise above-mentioned (A-1), (A-2), (A-3) resin in addition and the summation of all resins composition of rubber constituent.In addition, so-called resinous principle (A) 100 mass parts, the consumption that means above-mentioned each resinous principle adds up to 100 mass parts.So-called with polyolefin resin (A-1) and/or vinyl copolymer (A-2) and/or styrene block copolymer (A-3) as principal constituent, mean in resinous principle (A) 100 quality %, described (A-1), (A-2) and usage quantity (A-3) add up to usually more than 60 quality %, more than the preferred 75 quality %, more preferably below the above 100 quality % of 90 quality %.Also have,, can use at least a kind that from described (A-1), (A-2) reach (A-3), selects as the principal constituent of resinous principle (A).
(B) metal hydrate
In the present invention, in order to give resin combination, wiring material flame retardant resistance, in described thermoplastic resin composition (A), cooperate the metal hydrate (B) of specified amount.
As the metal hydrate that uses among the present invention, be not particularly limited, for example, aluminium hydroxide, magnesium hydroxide, hydrated aluminium silicate, hydrated magnesium silicate, magnesium basic carbonate, hydrotalcite etc. have the compound of hydroxyl or crystal water, and they can separately or make up more than 2 kinds and be used.As metal hydrate, magnesium hydroxide is preferred, and in magnesium hydroxide, " キ ス マ 5 series " of for example buying from market (trade(brand)name, the chemical society system of coordinating) etc. are preferred.
The metal hydrate that uses among the present invention must use the metal hydrate of handling through the bridging property silane coupling agent.
Here, so-called silane coupling agent is a bridging property, means the terminal group and the metal hydrate reaction of the amino, vinyl, epoxy group(ing) etc. of silane coupling agent for example, makes the silane coupling agent of silane coupling agent attached to the metal hydrate surface.Also have, so-called vinyl comprises that also acryl or methacryloyl etc. have the vinyl of reactive double bond.
As the bridging property silane coupling agent, can enumerate the silane coupling agent that end has two keys such as vinyl or acryl, methacryloyl etc., and terminally have epoxy group(ing) or sulfydryl, an amino silane coupling agent etc.These silane coupling agents both can with other silane coupling agent and usefulness, also end can be had these vinyl, epoxy group(ing), sulfydryl or amino silane coupling agent more than 2 kinds and use.In addition, aliphatics surface treatment agents such as these silane coupling agents and stearic acid are also with also can.
Has vinyl as end, epoxy group(ing), sulfydryl or amino silane coupling agent object lesson can be enumerated vinyltrimethoxy silane, vinyltriethoxysilane, glycidoxypropyltrime,hoxysilane, the glycidoxy propyl-triethoxysilicane, glycidoxy propyl group methyl dimethoxysilane, methacryloxy (メ Network リ ロ キ シ) propyl trimethoxy silicane, the methacryloxypropyl triethoxyl silane, the methacryloxypropyl methyl dimethoxysilane, the sulfydryl propyl trimethoxy silicane, the sulfydryl propyl-triethoxysilicane, aminopropyltriethoxywerene werene, TSL 8330, N-(β-aminoethyl)-γ-aminopropyl tripropyl Trimethoxy silane, N-(β-aminoethyl)-γ-aminopropyl tripropyl methyl dimethoxysilane etc.
In the occasion that metal hydrate is handled with silane coupling agent, must mix silane coupling agent to metal hydrate in advance.At this moment, suitable interpolation silane coupling agent reaches and enough carries out the surface-treated amount, and concrete, with respect to preferred 0.1～3 quality % of metal hydrate, 0.2～2 quality % is preferred.Both can use silane coupling agent stoste, also can be with using behind the solvent cut.
In the occasion of using the metal hydrate handled through the bridging property silane coupling agent as fire retardant, for example, compare with only adopting occasion with the metal hydrate of stearic acid or oleic acid processing, can confirm that weathering resistance obtains tremendous raising.The technology of this improvement is not understood, but has been used the metal hydrate of bridging property silane coupling agent, by silane coupling agent can with polymer-bound.Silane coupling agent and polymkeric substance be bonded in the occasion that sustains damage under the light actions such as ultraviolet ray, hindered phenol is that oxidation inhibitor or hindered amine are that photostabilizer is caught its free radical, thioether shown in the through type (1) is an oxidation inhibitor reparation, make at resinous principle and suffer under the state of stress, be difficult to produce be full of cracks, and the reduction of unit elongation also is difficult to take place.
On the other hand, adopt stearic acid or oleic acid or non-crosslinked metal hydrate to carry out the surface-treated metal hydrate, owing to polymkeric substance bonding does not take place, under light actions such as ultraviolet lights, because the phenomenon of polymkeric substance or surface treatment agent generation deterioration makes between polymkeric substance and the metal hydrate defective takes place.Certainly, though adopt same way can repair this defective owing to do not have bonding between polymkeric substance and the metal hydrate, so even reparation also is incomplete.Therefore, can think that the resin combination or the generation of long exposure chapped under the state of stress application, or unit elongation reduces.
In addition, be that oxidation inhibitor or benzophenone series and/or benzotriazole are UV light absorber with the thioether of formula (1) expression, or decomposed, or be adsorbed on the metal hydrate by the alkalescence of metal hydrate.By the metal hydrate that uses the bridging property silane coupling agent to handle, because metal hydrate and polymkeric substance have bonding structure, can suppress above-mentioned thioether with formula (1) expression and be oxidation inhibitor or benzophenone series and/or benzotriazole is the absorption or the decomposition of UV light absorber.
The part of the metal hydrate of handling as the bridging property silane coupling agent, for example, can adopt metal hydrate, the untreated metal hydrate handled by the surface-treated metal hydrate of non-crosslinked silane coupling agent, with lipid acid etc., but must be controlled in the metal hydrate at the most below 1/3.
The amount of metal hydrate is 60～300 mass parts with respect to resinous principle (A) 100 mass parts, preferred 70～250 mass parts, more preferably 70～200 mass parts.When being less than 60 mass parts, flame retardant resistance generation problem, and when more than 300 mass parts, not only mechanical strength variation, and weathering resistance also significantly descends.Therefore, in order to keep weathering resistance, its upper limit is preferred below 250 mass parts, is preferred below 200 mass parts, is especially preferred below 150 mass parts.
(C) hindered phenol is an oxidation inhibitor
The hindered phenol that uses as the present invention is the object lesson of oxidation inhibitor, (3-(3 can to enumerate tetramethylolmethane base-four, the 5-di-tert-butyl-hydroxy phenyl) propionic ester), 1, (3-(3 for 6-hexylene glycol-two, the 5-di-tert-butyl-hydroxy phenyl) propionic ester), 2,4-pair-(n-octyl sulphur)-6-(4-hydroxyl-3,5-di-tert-butyl amido)-1,3, the 5-triazine, 2,2-sulphur-diethylidene-two (3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester), octadecyl-3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester, 1,3,5-trimethylammonium-2,4,6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene etc.
In resin combination in the past, hindered phenol is that the consumption of oxidation inhibitor is below 0.5 mass parts with respect to resinous principle 100 mass parts usually.On the contrary, in resin combination of the present invention, hindered phenol is that the consumption of oxidation inhibitor is at least 1 mass parts in resinous principle (A) 100 mass parts, more than preferred 1.3 mass parts, more preferably more than 1.5 mass parts.
In addition, hindered phenol is that the consumption of oxidation inhibitor must be below 8 mass parts with respect to resinous principle (A) 100 mass parts.When greater than 8 mass parts, not only intensity significantly descends, and the effect of interpolation almost loses.
This hindered phenol is the thermotolerance that oxidation inhibitor not only keeps this resin combination, and, have the effect of catching the free radical that photic deterioration produces.In addition, by the free radical that produces because of photic deterioration between the metal hydrate of having caught and the polymkeric substance with the silane coupling agent bonding, it is repaired, whereby, the defective between polymkeric substance and the metal hydrate can be suppressed, and the reduction or the stress rupture of resin combination unit elongation after the rayed such as ultraviolet ray can be suppressed at.
(D) thioether is an oxidation inhibitor
The preferred thioether that uses is that oxidation inhibitor can be used following formula (1) expression among the present invention.
[chemical formula 3]
In the formula (1), R
1The expression alkyl, the alkyl that preferred carbonatoms is 1～30.
Thioether with formula (1) expression is an oxidation inhibitor, is about 0.3 mass parts with respect in the past resin combination usually.On the contrary, in the present invention, with the thioether of formula (1) expression be oxidation inhibitor with respect to resinous principle (A) 100 mass parts, preferably use 0.8～8 mass parts, more preferably use 1.0～6 mass parts, especially preferably use 1.5～5 mass parts.
This thioether is an oxidation inhibitor, by adding more than 0.8 mass parts, can improve thermotolerance by leaps and bounds, so be preferred.Yet when adding thioether with formula (1) expression and be oxidation inhibitor, weathering resistance has the phenomenon of decline.Therefore, be more than UV light absorber 0.8 mass parts particularly by adding benzophenone series or benzotriazole, then can further obtain thermotolerance, weathering resistance both all excellent non-halogen mixture, electric wires.Particularly, high weather resistance can be kept, thermotolerance, weathering resistance both all excellent non-halogen mixture, electric wires can be obtained by adding the benzophenone series UV light absorber.
When adding thioether with formula (1) expression and be oxidation inhibitor, benzophenone series or benzotriazole be UV light absorber more than 0.8 mass parts, preferred benzophenone series UV light absorber is more than 0.8 mass parts, more preferably more than 1.0 mass parts.
Particularly, when the vinyl copolymer of acid content more than 20 quality % uses as resinous principle, it is found that this thioether is the effect that the thermotolerance of oxidation inhibitor keeps effect to be risen by leaps and bounds.Whereby, can obtain thermotolerance and be maintained, non-halogen mixture, electric wire that weathering resistance is very good.
When this thioether is oxidation inhibitor addition when too much, not only produce and ooze out, and weathering resistance declines to a great extent.
(E) benzophenone series and benzotriazole are UV light absorber
Object lesson as the used benzophenone series UV light absorber of the present invention; can enumerate 2; 4-dihydroxy benaophenonel, two (5-benzoyl-4-hydroxyl-2-p-methoxy-phenyl) methane, 2; 2 '-dihydroxyl-4-methoxy benzophenone, 2; 2 '-dihydroxyl-4,4 '-dimethoxy-benzophenone etc.
[chemical formula 4]
In the formula (Ea-1), R
2The expression alkyl, the alkyl that preferred carbonatoms is 1～20.As the object lesson of formula (Ea-1) compound, can enumerate 2-hydroxyl-4-methoxyl group-benzophenone, 2-hydroxyl-4-dodecyl oxo benzophenone etc.
In addition, the benzotriazole that uses as the present invention is the object lesson of UV light absorber, can enumerate 2-(2 '-hydroxyl-3 ', 5 '-two (α, α-Er Jiajibianji) phenyl)-benzotriazole, 2-(2 '-hydroxyl-3 ', 5 '-di-t-butyl-5 '-aminomethyl phenyl) benzotriazole, 2-(2 '-hydroxyl-3 ', 5 '-two tert-pentyls) benzotriazole, 2-(2 '-hydroxyl-5 '-uncle's octyl phenyl) benzotriazole and the compound represented with following formula:
[chemical formula 5]
These UV light absorber, the alkalescence that is photostabilizer by the alkalescence and the hindered amine of metal hydrate causes decomposition.When particularly using magnesium hydroxide in a large number, decompose violent as metal hydrate.When using the above vinyl copolymer of acid content 20 quality % as the resin combination of resinous principle, owing to can suppress its alkalescence, suppressing benzophenone series and benzotriazole is the decomposition of UV light absorber, so weathering resistance may increase substantially.
This benzophenone series and/or benzotriazole are the consumption of UV light absorber, resinous principle (A) 100 mass parts are reached 0.4～8 mass parts, preferred 0.8～8 mass parts, more preferably 0.8～6 mass parts, especially preferred 1.2～5 mass parts, preferred especially 1.5～5 mass parts.
When being less than 0.4 mass parts, nearly unavailable fruit in fact, and when greater than 8 mass parts, not only mechanical strength reduction, and thermotolerance also descends.
Infer that benzophenone series or benzotriazole are UV light absorber, decompose, so it is preferred adding the above scheme of 0.8 mass parts by metal hydrate.
Particularly, by adding the benzophenone series UV light absorber more than 0.8 mass parts, can obtain very good weathering resistance.In addition,, still can keep weathering resistance on the one hand, keep thermotolerance on the one hand even the thioether that adds with formula (1) expression is an antioxidant.
(F) hindered amine is a photostabilizer
The hindered amine that uses as the present invention is the object lesson of photostabilizer, can enumerate succsinic acid dimethyl-1-(2-hydroxyethyl)-4-hydroxyl-2,2,6,6-tetramethyl piperidine polycondensate, poly-((6-(1,1,3, the 3-tetramethyl butyl) amino-1,3,5-triazine-2,4-two bases) ((2,2,6,6-tetramethyl--4-piperidyl) imino-) hexa-methylene ((2,2, imino-)) and the compound of representing with following formula 6,6-tetramethyl--4-piperidyl):
[changing 6]
In the formula (F-3), x represents the integer more than 1.In the formula (F-4), n represents the integer more than 1, preferred 1～20.As the object lesson of formula (F-4) compound, can enumerate two (2,2,6,6-tetramethyl--4-piperidyl) sebates etc.
This hindered amine is that the function of photostabilizer is, by the metal hydrate of silane coupling agent and the key of polymkeric substance, has repair when being cut off by light such as ultraviolet rays.Particularly, the reparation to this key has very big effect near resin surface.When its amount was less than 1 mass parts with respect to resinous principle (A) 100 mass parts, weathering resistance significantly descended.In addition, when greater than 7 mass parts, aging property significantly descend.
(g) organo-peroxide
As the organo-peroxide that uses among the present invention; for example; can enumerate dicumyl peroxide; ditertiary butyl peroxide; 2; 5-dimethyl-2; 5-two (t-butyl peroxy) hexane; 2; 5-dimethyl-2; 5-two (t-butyl peroxy) hexin-3; 1; two (t-butyl peroxy sec.-propyl) benzene of 3-; 1; two (t-butyl peroxy)-3 of 1-; 3; the 5-trimethyl-cyclohexane; normal-butyl-4; two (t-butyl peroxy) valerates (バ レ レ one ト) of 4-; benzoyl peroxide; right-chlorobenzoyl peroxide; 2, the 4-dichlorobenzoperoxide; tert butyl peroxy benzoate; tert-butyl hydroperoxide sec.-propyl carbonic ether; diacetyl peroxide; the lauroyl superoxide; tertiary butyl cumyl peroxide etc.
Wherein, consider from foul smell, tint permanence, scorching stability, 2,5-dimethyl-2,5-two (t-butyl peroxy) hexane, 2,5-dimethyl-2,5-two (t-butyl peroxy) hexin-the 3rd, most preferred.
The content of organo-peroxide (g) is the scope of 0.01～1.0 mass parts with respect to thermoplastic resin composition (A) 100 mass parts, preferred 0.01～0.6 mass parts, more preferably 0.05～0.8 mass parts, preferred especially 0.1～0.6 mass parts.When organo-peroxide is selected,,, can obtain extrudability good partial cross-linked composition again so not fusant neither takes place owing to do not carry out over-crosslinked in above-mentioned scope.
(h) (methyl) acrylic ester and/or allyl acid are crosslinking coagent
In the manufacturing of flame retardant resin composition of the present invention or use therein thermoplastic resin composition (A), be in the presence of organo-peroxide, to pass through crosslinking coagent, between vinyl aromatic based thermoplastic elastomerics and ethylene, form partial cross-linked structure.As the example of the crosslinking coagent that uses this moment, can enumerate (methyl) acrylic ester crosslinking coagent with following general formula:
[chemical formula 7]
(in the formula, R is H or CH
3, n is 1～9 integer).The what is called here (methyl) acrylic ester crosslinking coagent is meant acrylic ester and methacrylate ester crosslinking coagent.Concrete, can enumerate ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, polyethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, allyl methyl acrylate.
In addition, can use ends such as diallyl fumarate, diallyl phthalate, tetraene propoxy-ethane, triallyl isocyanuric acid ester that allylic compound is arranged.
Wherein, particularly n is that (methyl) acrylic ester crosslinking coagent of 1～6 is preferred, can enumerate glycol diacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate.
Particularly, in the present invention, triethylene glycol dimethacrylate is easy to handle, and is good with other composition intermiscibilities, and, but has the superoxide solvation, have effect,, thereby can obtain hardness and caoutchouc elasticity reaches equilibrated partially crosslinked thermoplastic resin so the cross-linking effect when adding hot milling evenly and effectively as the superoxide dispersing auxiliary, so, be optimal.By using this compound, neither can crosslinked deficiency also can be crosslinked excessively, even and effective partial cross-linked reaction in the time of can expecting to obtain adding hot milling.
The content of the crosslinking coagent that uses among the present invention is that the scope of 0.03～1.8 mass parts is preferred with respect to thermoplastic resin composition (A) 100 mass parts, more preferably 0.03～1.2 mass parts.By selected crosslinking coagent in this scope, then can obtain within reasonly carrying out crosslinked and reaching slowly crosslinked, thereby can not produced not fusant and extrudability good composition.It is preferred that the content of crosslinking coagent reaches about 1.5～4.0 times of organo-peroxide content by quality ratio.
In insualtion resin composition of the present invention, can cooperate at least a kind of compound from zinc, zinc hydroxyl stannate and zinc borate, selecting as required, flame retardant resistance is further improved.By adopting these compounds, the hull shape during burning becomes speed to increase, and it is more strong that hull shape becomes.The zinc of using among the present invention, zinc hydroxyl stannate and zinc borate, median size are preferred the following person of 5 μ m, and the following person of 3 μ m is preferred.
As the object lesson of the zinc borate that uses among the present invention, ア Le カ ネ Star Network ス FRC-500 (2ZnO/3B is arranged
2O
33.5H
2O), FRC-600 (being trade(brand)name, marshy land chemistry society system) etc.In addition, as zinc (ZnSnO
3), zinc hydroxyl stannate (ZnSn (OH)
6) object lesson, ア Le カ ネ Star Network ス ZS, ア Le カ ネ Star Network ス ZHS (being trade(brand)name, marshy land chemistry society system) etc. are arranged.
In insualtion resin composition of the present invention, in not damaging the object of the invention scope, can suitably cooperate the general various additives that use, for example metal passivator, fire-retardant (helping) agent, filler, lubricant etc. in electric wire, the cable.
As the object lesson of metal passivator, can enumerate N, (3-(3 for N '-two; the 5-di-tert-butyl-hydroxy phenyl) propionyl) hydrazine, 3-(N-salicyloyl) amino-1,2,4-triazole, 2; 2 '-oxamide-two (ethyl-3-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester) etc.
As fire-retardant (helping) agent, filler, can enumerate charcoal, clay, zinc oxide, stannic oxide, titanium oxide, magnesium oxide, molybdenum oxide, ANTIMONY TRIOXIDE SB 203 99.8 PCT, silicone compounds, quartz, talcum, lime carbonate, magnesiumcarbonate, white carbon black etc.
As lubricant, can enumerate hydrocarbon system, fatty acid series, fatty acid amide system, ester system, alcohol system, metallic soap system etc., wherein, paraffin E, paraffin OP (being trade(brand)name, Hoechst society system) etc. show that simultaneously the ester base lubricant of internal lubrication and external lubrication is preferred.
Insualtion resin composition of the present invention can be with common á such as above-mentioned various compositions twin-screw mixer forcing machine, banbury mixers, kneading machine, roller mills
With kneading device carry out melting mixing and make.Temperature among the present invention during fusion should be more than the melt temperature of above-mentioned thermoplastic resin composition (A).This temperature is not particularly limited along with the concrete formation of resinous principle (A) changes, but is preferred at 160～250 ℃.
Below insulated line of the present invention is illustrated.
Electric wire of the present invention, cable, optical cable, light flexible lead, be in conductor and/or the fibre-optic outside with the product of the crosslinked body lining of above-mentioned insualtion resin composition of the present invention, be insualtion resin composition of the present invention to be extruded with extrusion shaping machine with common electric wire manufacturing to be overlayed on conductor or optical fiber constitutes on every side.
Both can carry out crosslinkedly behind silane coupling agent and polymer-bound, it is crosslinked also can the part of resin to be carried out with kneading machine or banbury mixers, makes polymkeric substance and metal hydrate carry out bonding by silane coupling agent simultaneously.
Cross-linking method after the lining is not particularly limited, can adopts electron beam crosslinking method or chemical crosslink technique to carry out.
When carrying out with the electron beam crosslinking, the dosage of electron beam is that 1～30Mrad is suitable, more effective crosslinked in order to carry out, can cooperate multi-functional compounds such as allyl group based compounds such as methacrylate ester compound, triallyl isocyanuric acid ester, maleimide amine compound, divinyl based compound such as Viscoat 295 as crosslinking coagent.
When adopting chemical crosslink technique; in resin combination, cooperate organo-peroxides such as hydrogen peroxide, dialkyl peroxide, diacyl peroxide, peroxyester, ketone peroxyester, ketone peroxide, undertaken crosslinked by heat treated in extrusion moulding lining back as linking agent.
Conductor diameter, optical fiber diameter, conductor or fibre-optic material etc. to insulated line of the present invention are not particularly limited, can be suitably selected according to purposes.Coating wall thickness at conductor and/or the fibre-optic insualtion resin composition that forms on every side also is not particularly limited, but 0.15～1mm is preferred.In addition, insulation layer both can be a multilayered structure, also can also have middle layer etc. except the coating that adopts insualtion resin composition formation of the present invention.
Embodiment
Illustrate in greater detail the present invention according to embodiment below, but the present invention is not limited again.
At first,, carry out melting mixing, make various insualtion resin compositions with banbury mixers the dry blending in addition at room temperature of the various compositions shown in the following table.Also have, melt temperature is being carried out more than as the melt temperature of the resinous principle of principal constituent with polyolefin resin and/or vinyl copolymer and/or styrene block copolymer respectively.Concrete is all to carry out at 210 ℃ in all examples shown in the table.
Secondly, adopt the coating device of extruding of electric wire manufacturing usefulness, the insualtion resin composition of melting mixing is in advance overlayed on conductor (the zinc-plated annealed copper strand wire of conductor diameter 1.14mm Φ, formation: 30/0.18mm Φ), make various insulated lines with extrusion molding.Its external diameter is 2.74mm (lining bed thickness 0.86mm).
Also have, adopt the following product of various compositions shown in table 1～4.In the table, the numerical value that expression is formed is mass fraction.
(01) ethylene-vinyl acetate copolymer
VA content 33 quality %
EV-180 (trade(brand)name, Mitsui デ ユ Port Application Port リ ケ ミ カ Le system)
(02) ethylene-ethyl acrylate copolymer
EA content 25 quality %
A-714 (trade(brand)name, Mitsui デ ユ Port Application Port リ ケ ミ カ Le system)
(03) ethylene-vinyl acetate copolymer
VA content 17 quality %
V-527-4 (trade(brand)name, Mitsui デ ユ Port Application Port リ ケ ミ カ Le system)
(04) ethylene-vinyl acetate copolymer
VA content 41 quality %
EV-40LX (trade(brand)name, Mitsui デ ユ Port Application Port リ ケ ミ カ Le system)
(05) ethylene-alpha-olefin copolymer
Density 0.905
ユ メ リ Star ト 0540F (trade(brand)name, space portion is emerging to produce)
(06) block polypropylene
PN-610S (trade(brand)name, ト Network ヤ マ system)
(07) styrene series elastomer
セ プ ト Application 4077 (trade(brand)name, Network ラ レ system)
(08) softener of rubber
ダ イ ア Na プ ロ セ ス オ イ Le PW-90 (trade(brand)name, bright dipping is emerging to produce)
(09) toxilic acid modified PE
ア De マ one XE070 (trade(brand)name, Mitsui Chemicals system)
(10) magnesium hydroxide that is untreated
キ ス マ 5 (trade(brand)name, the chemical society system of coordinating)
(11) there is the silane coupling agent of vinyl to carry out the surface-treated magnesium hydroxide with terminal
キ ス マ 5LH (trade(brand)name, the chemical society system of coordinating)
(12) stearic acid is handled magnesium hydroxide
キ ス マ 5A (trade(brand)name, the chemical society system of coordinating)
(13) end has the silane coupling agent of vinyl (acryl)
TSL8370 (trade(brand)name, the シ リ コ of Toshiba one Application society system)
(14) end has the silane coupling agent of epoxy group(ing)
TSL8350 (trade(brand)name, the シ リ コ of Toshiba one Application society system)
(15) hindered phenol is an oxidation inhibitor
イ Le ガ ノ Star Network ス 1010 (trade(brand)name, チ バ ス ペ シ ヤ Le テ イ one ケ ミ カ Le ズ society system)
(16) thioether is an oxidation inhibitor
ア デ カ ス Block AO-412S (trade(brand)name, rising sun electrification system)
(17) benzophenone series UV light absorber
ア デ カ ス Block 1413 (trade(brand)name, rising sun electrification system)
(18) benzotriazole is a UV light absorber
ア デ カ ス Block LA-36 (trade(brand)name, rising sun electrification system)
(19) hindered amine is a photostabilizer
ア デ カ ス Block LA-52 (trade(brand)name, rising sun electrification system)
(20) (methyl) acrylic ester crosslinking coagent
NK ester 3G (trade(brand)name, the TRIM that Xin Zhong village chemistry is made)
(21) organo-peroxide
パ one ヘ キ サ 25B (trade(brand)name, Japanese grease society make 2,5-dimethyl-2,5-two (tertiary butyl pentyloxy (ヒ one Block チ Le ペ ロ オ キ シ))-hexane)
(22) calcium stearate (Japanese grease system)
Resulting various insulated lines are carried out following test.The results are shown in table 1～4.
1) unit elongation, tension stress
The unit elongation (%) of each insulated line and the tension stress (MPa) of coating are measured under the condition that 20mm, draw speed 200mm/ between graticule divide.Unit elongation and tension stress require characteristic respectively more than 100%, more than the 10MPa.
2) thermotolerance
Carry out heat treated after 30 days in 160 ℃, the unit elongation (%) of each insulated line and the tension stress (MPa) of coating are measured under the condition that 20mm, draw speed 200mm/ between graticule divide.Extend residual rate more than 65%, the tension stress residual rate is being qualified more than 70%.
3) weathering resistance
Weathering resistance is to adopt the super UV trier of SUV-1 (big Japanese プ ラ ス チ Star Network system), irradiation 300hr.Extend residual rate more than 45%, the tension stress residual rate is being qualified more than 50%.
In addition, make the sample of reeling, after the mensuration irradiation whether be full of cracks is arranged by own internal diameter.It is zero that be full of cracks person is not taken place, produce be full of cracks person to be *.
4) ooze out
In 30 ℃ of placements 10 days, confirm whether ooze out.Not having the person of oozing out or no problem person is zero, and oozing out big person is △, ooze out anti-greatly and not user to be *.Even △ also can use sometimes.
Table 1
| Embodiment | ??1 | ??2 | ??3 | ??4 | ??5 | ??6 |
| (01) ethylene-vinyl acetate copolymer | ??50 | ??50 | ??50 | ??50 | ||
| (02) ethylene-ethyl acrylate copolymer | ??50 | |||||
| (03) ethylene-vinyl acetate copolymer | ??50 | |||||
| (04) ethylene-vinyl acetate copolymer | ||||||
| (05) ethene-alpha-olefin copolymer | ||||||
| (06) block polypropylene | ??15 | ??15 | ??15 | ??15 | ??15 | ??15 |
| (07) styrene series elastomer | ??25 | ??25 | ??25 | ??25 | ??25 | ??25 |
| (08) softener of rubber | ??5 | ??5 | ??5 | ??5 | ??5 | ??5 |
| (09) toxilic acid modified PE | ??5 | ??5 | ??5 | ??5 | ??5 | ??5 |
| (10) magnesium hydroxide that is untreated | ||||||
| (11) end contains the silane coupling agent processing magnesium hydroxide of vinyl | ??130 | ??130 | ??100 | ??130 | ??130 | ??130 |
| (12) stearic acid is handled magnesium hydroxide | ||||||
| (13) end contains the silane coupling agent of vinyl | ||||||
| (14) end contains the silane coupling agent of epoxy group(ing) | ||||||
| (15) hindered phenol is an oxidation inhibitor | ??3 | ??3 | ??3 | ??2 | ??2 | ??2 |
| (16) thioether is an oxidation inhibitor | ??1.5 | ??1.5 | ??1.5 | |||
| (17) benzophenone series UV light absorber | ??2 | ??2 | ??2 | ??2 | ??2 | ??2 |
| (18) benzotriazole is a UV light absorber | ??1 | ??1 | ||||
| (19) hindered amine is a photostabilizer | ??1.5 | ??1.5 | ??1.5 | ??1.5 | ??1.5 | ??1.5 |
| (21) organo-peroxide | ??0.2 | ??0.2 | ??0.2 | ??0.2 | ??0.2 | ??0.2 |
| (20) (methyl) acrylic ester linking agent | ??0.6 | ??0.6 | ??0.6 | ??0.6 | ??0.6 | ??0.6 |
| (22) calcium stearate | ??1 | ??1 | ??1 | ??1 | ??1 | ??1 |
| Unit elongation (%) | ??280 | ??280 | ??280 | ??280 | ??290 | ??180 |
| Tension stress (MPa) | ??13.3 | ??13.3 | ??13.3 | ??13.3 | ??11.1 | ??17.2 |
| Thermotolerance elongation residual rate (%) tension stress residual rate (%) | ??67 ??104 | ??68 ??104 | ??67 ??104 | ??92 ??104 | ??83 ??102 | ??77 ??113 |
| Weathering resistance elongation residual rate (%) tension stress residual rate (%) crack | ??77 ??85 ??○ | ??82 ??85 ??○ | ??89 ??85 ??○ | ??64 ??85 ??○ | ??59 ??83 ??○ | ??50 ??82 ??○ |
| Ooze out | ??○ | ??○ | ??○ | ??○ | ??○ | ??○ |
Table 2
| Embodiment | ??7 | ??8 | ??9 | ??10 | ??11 | ??12 |
| (01) ethylene-vinyl acetate copolymer | ??50 | ??50 | ??55 | ??55 | ||
| (02) ethylene-ethyl acrylate copolymer | ||||||
| (03) ethylene-vinyl acetate copolymer | ||||||
| (04) ethylene-vinyl acetate copolymer | ??50 | |||||
| (05) ethene-alpha-olefin copolymer | ??50 | |||||
| (06) block polypropylene | ??15 | ??15 | ??15 | ??15 | ??15 | ??15 |
| (07) styrene series elastomer | ??25 | ??25 | ??25 | ??25 | ??20 | ??20 |
| (08) softener of rubber | ??5 | ??5 | ??5 | ??5 | ??5 | ??5 |
| (09) toxilic acid modified PE | ??5 | ??5 | ??5 | ??5 | ??5 | ??5 |
| (10) magnesium hydroxide that is untreated | ||||||
| (11) end contains the silane coupling agent processing magnesium hydroxide of vinyl | ??130 | ??130 | ??130 | ??130 | ??130 | ??130 |
| (12) stearic acid is handled magnesium hydroxide | ||||||
| (13) end contains the silane coupling agent of vinyl | ||||||
| (14) end contains the silane coupling agent of epoxy group(ing) | ||||||
| (15) hindered phenol is an oxidation inhibitor | ??2 | ??2 | ??2 | ??2 | ??2 | ??2 |
| (16) thioether is an oxidation inhibitor | ??1.5 | ??1.5 | ??0.8 | ??6.5 | ??1.5 | ??1.5 |
| (17) benzophenone series UV light absorber | ??2 | ??2 | ??2 | ??2 | ??0.5 | ??7 |
| (18) benzotriazole is a UV light absorber | ||||||
| (19) hindered amine is a photostabilizer | ??1.5 | ??1.5 | ??1.5 | ??1.5 | ??1.5 | ??1.5 |
| (21) organo-peroxide | ??0.2 | ??0.2 | ??0.2 | ??0.2 | ??0.2 | ??0.2 |
| (20) (methyl) acrylic ester linking agent | ??0.6 | ??0.6 | ??0.6 | ??0.6 | ??0.6 | ??0.6 |
| (22) calcium stearate | ??1 | ??1 | ??1 | ??1 | ??1 | ??1 |
| Unit elongation (%) | ??420 | ??380 | ??290 | ??350 | ??260 | ??330 |
| Tension stress (MPa) | ??10.5 | ??18.5 | ??14.1 | ??10.9 | ??14.2 | ??10.6 |
| Thermotolerance elongation residual rate (%) tension stress residual rate (%) | ??82 ??92 | ??66 ??98 | ??74 ??106 | ??85 ??102 | ??87 ??113 | ??77 ??109 |
| Weathering resistance elongation residual rate (%) tension stress residual rate (%) crack | ??67 ??82 ??○ | ??46 ??75 ??○ | ??74 ??81 ??○ | ??50 ??90 ??○ | ??53 ??85 ??○ | ??57 ??85 ??○ |
| Ooze out | ??○ | ??○ | ??○ | ??○ | ??○ | ??○ |
Table 3
| Embodiment | ??13 | ??14 | ??15 | ??16 | ??17 |
| (01) ethylene-vinyl acetate copolymer | ??55 | ??55 | ??55 | ??55 | ??55 |
| (02) ethylene-ethyl acrylate copolymer | |||||
| (03) ethylene-vinyl acetate copolymer | |||||
| (04) ethylene-vinyl acetate copolymer | |||||
| (05) ethene-alpha-olefin copolymer | |||||
| (06) block polypropylene | ??15 | ??15 | ??15 | ??15 | ??15 |
| (07) styrene series elastomer | ??20 | ??20 | ??20 | ??20 | ??20 |
| (08) softener of rubber | ??5 | ??5 | ??5 | ??5 | ??5 |
| (09) toxilic acid modified PE | ??5 | ??5 | ??5 | ??5 | ??5 |
| (10) magnesium hydroxide that is untreated | ??130 | ||||
| (11) end contains the silane coupling agent processing magnesium hydroxide of vinyl | ??130 | ??130 | ??100 | ??130 | |
| (12) stearic acid is handled magnesium hydroxide | ??30 | ||||
| (13) end contains the silane coupling agent of vinyl | ??1.0 | ||||
| (14) end contains the silane coupling agent of epoxy group(ing) | ??0.3 | ||||
| (15) hindered phenol is an oxidation inhibitor | ??2 | ??2 | ??2 | ??2 | ??6 |
| (16) thioether is an oxidation inhibitor | ??1.5 | ??1.5 | ??1.5 | ??1.5 | ??1.5 |
| (17) benzophenone series UV light absorber | ??2 | ??2 | ??2 | ??2 | |
| (18) benzotriazole is a UV light absorber | ??2 | ||||
| (19) hindered amine is a photostabilizer | ??1.5 | ??6 | ??1.5 | ??1.5 | ??1.5 |
| (21) organo-peroxide | ??0.2 | ??0.2 | ??0.2 | ??0.2 | ??0.2 |
| (20) (methyl) acrylic ester linking agent | ??0.6 | ??0.6 | ??0.6 | ??0.6 | ??0.6 |
| (22) calcium stearate | ??1 | ??1 | ??1 | ??1 | ??1 |
| Unit elongation (%) | ??260 | ??320 | ??350 | ??210 | ??350 |
| Tension stress (MPa) | ??11.8 | ??10.9 | ??10.8 | ??12.7 | ??10.4 |
| Thermotolerance elongation residual rate (%) tension stress residual rate (%) | ??92 ??112 | ??74 ??109 | ??70 ??112 | ??83 ??116 | ??91 ??114 |
| Weathering resistance elongation residual rate (%) tension stress residual rate (%) crack | ??57 ??85 ??○ | ??50 ??81 ??○ | ??47 ??80 ??○ | ??56 ??84 ??○ | ??61 ??85 ??○ |
| Ooze out | ??○ | ??○ | ??○ | ??○ | ??○ |
Table 4
| Embodiment | ????1 | ????2 | ????3 | ????4 |
| (01) ethylene-vinyl acetate copolymer | ????55 | ????55 | ????55 | ????55 |
| (02) ethylene-ethyl acrylate copolymer | ||||
| (03) ethylene-vinyl acetate copolymer | ||||
| (04) ethylene-vinyl acetate copolymer | ||||
| (05) ethene-alpha-olefin copolymer | ||||
| (06) block polypropylene | ????15 | ????15 | ????15 | ????15 |
| (07) styrene series elastomer | ????20 | ????20 | ????20 | ????20 |
| (08) softener of rubber | ????5 | ????5 | ????5 | ????5 |
| (09) toxilic acid modified PE | ????5 | ????5 | ????5 | ????5 |
| (10) magnesium hydroxide that is untreated | ||||
| (11) end contains the silane coupling agent processing magnesium hydroxide of vinyl | ????130 | ????130 | ????130 | |
| (12) stearic acid is handled magnesium hydroxide | ????130 | |||
| (13) end contains the silane coupling agent of vinyl | ||||
| (14) end contains the silane coupling agent of epoxy group(ing) | ||||
| (15) hindered phenol is an oxidation inhibitor | ????2 | ????0.5 | ????2 | ????2 |
| (16) thioether is an oxidation inhibitor | ????1.5 | ????1 | ????1 | ????10 |
| (17) benzophenone series UV light absorber | ????2 | ????1 | ????0.2 | ????2 |
| (18) benzotriazole is a UV light absorber | ||||
| (19) hindered amine is a photostabilizer | ????1.5 | ????1 | ????0.2 | ????2 |
| (21) organo-peroxide | ????0.2 | ????0.2 | ????0.2 | ????0.2 |
| (20) (methyl) acrylic ester linking agent | ????0.6 | ????0.6 | ????0.6 | ????0.6 |
| (22) calcium stearate | ????1 | ????1 | ????1 | ????1 |
| Unit elongation (%) | ????420 | ????260 | ????250 | ????350 |
| Tension stress (MPa) | ????10.8 | ????13.3 | ????13.2 | ????11.0 |
| Thermotolerance elongation residual rate (%) tension stress residual rate (%) | ????67 ????98 | ????70 ????102 | ????86 ????110 | ????92 ????10 |
| Weathering resistance elongation residual rate (%) tension stress residual rate (%) crack | ????32 ????70 ????○ | ????32 ????78 ????○ | ????43 ????72 ????○ | ????46 ????89 ????○ |
| Ooze out | ????○ | ????○ | ????○ | ????△ |
As can be known clear and definite from the result shown in table 1～4, in comparative example 1,, between magnesium hydroxide and polymkeric substance, produce defective because metal hydrate is handled without silane coupling agent, oneself confirms that unit elongation reduces in the weathering test.In comparative example 2, because hindered phenol is that antioxygen dosage is very few, unit elongation reduces in weathering test.In comparative example 3, because the amount of benzophenone series UV light absorber and amount that hindered amine is photostabilizer are very few, rayed causes that unit elongation descends.
Opposite with it, in embodiments of the invention 1～17, the Total Test evaluation is good, obtains having insualtion resin composition and the insulated line that purpose requires performance.Also have, comparative example 4 is that thioether is the amount of the oxidation inhibitor comparative example when too much.
The effect of invention
According to the present invention, can provide a kind of have the desired high flame retardant of insulated line and good thermotolerance, weathering resistance and mechanical characteristics and can be coloured to random color, electrology characteristic insualtion resin composition that be maintained, that oil-proofness keeps such as electrical insulating property.
In addition, by said composition as coating material, insulated line with following properties can be provided: the stripping of heavy metal free compound and phosphorus compound when discarding landfill, the problem of not having a large amount of cigarettes when burning, also not having corrosive gases to produce, but have good thermotolerance and weathering resistance.
Claims (6)
1. an insualtion resin composition is characterized in that, said composition be with respect to polyolefin resin and/or vinyl copolymer and/or styrene block copolymer as resinous principle (A) 100 mass parts of principal constituent, contain:
Carried out surface-treated metal hydrate 60～300 mass parts through the bridging property silane coupling agent,
Be selected from following (i), (ii) or (iii) any a kind:
(i) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series and/or benzotriazole are that UV light absorber 0.4～8 mass parts and hindered amine are photostabilizer 1～7 mass parts,
(ii) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series UV light absorber 0.8～8 mass parts and hindered amine are photostabilizer 1～7 mass parts,
(iii) hindered phenol is oxidation inhibitor 1～8 mass parts and is that oxidation inhibitor 0.8～8 mass parts, benzophenone series and/or benzotriazole are that UV light absorber 0.4～8 mass parts and hindered amine are photostabilizer 1～7 mass parts with the thioether that following formula (1) structure is represented
(Chemical formula 1)
(in the formula, R
1The expression alkyl)
(g) organo-peroxide 0.01～1.0 mass parts; And
(h) mixture of (methyl) acrylic ester and/or allyl base system crosslinking coagent 0.03～1.8 mass parts, and more than the melt temperature of described thermoplastic resin composition (A), add hot milling and form.
2. according to the insualtion resin composition described in the claim 1, it is characterized in that, with respect to above-mentioned resinous principle (A) 100 mass parts, containing above-mentioned (i) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series and/or benzotriazole are UV light absorber 0.4～8 mass parts, and hindered amine is photostabilizer 1～7 mass parts.
3. according to the insualtion resin composition described in the claim 1, it is characterized in that, with respect to above-mentioned resinous principle (A) 100 mass parts, containing above-mentioned (ii) hindered phenol is that oxidation inhibitor 1～8 mass parts, benzophenone series UV light absorber 0.8～8 mass parts and hindered amine are photostabilizer 1～7 mass parts.
4. according to the insualtion resin composition described in the claim 1, it is characterized in that, with respect to above-mentioned resinous principle (A) 100 mass parts, contain above-mentioned (iii) hindered phenol and be oxidation inhibitor 1～8 mass parts, be that oxidation inhibitor 0.8～8 mass parts, benzophenone series and/or benzotriazole are that UV light absorber 0.4～8 mass parts and hindered amine are photostabilizer 1～7 mass parts with the thioether of following formula (1) expression structure.
5. an insulated line is characterized in that, with what form around wantonly 1 described insualtion resin composition coated conductor in the claim 1～4 and/or the optical fiber.
6. an insulated line is characterized in that, around wantonly 1 described insualtion resin composition coated conductor in the claim 1～4 and/or optical fiber, and resin combination that should lining portion crosslinked forming in addition.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031489303A CN100404603C (en) | 2003-06-24 | 2003-06-24 | Heat-resistant weather-resistant excellent insulating resin composition and insulated wire |
| HK05105669A HK1073121A1 (en) | 2003-06-24 | 2005-07-06 | Insulation resin composition having heat resistance and weather resistance, and insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031489303A CN100404603C (en) | 2003-06-24 | 2003-06-24 | Heat-resistant weather-resistant excellent insulating resin composition and insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1566189A true CN1566189A (en) | 2005-01-19 |
| CN100404603C CN100404603C (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031489303A Expired - Fee Related CN100404603C (en) | 2003-06-24 | 2003-06-24 | Heat-resistant weather-resistant excellent insulating resin composition and insulated wire |
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| HK (1) | HK1073121A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN100404603C (en) | 2008-07-23 |
| HK1073121A1 (en) | 2005-09-23 |
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