CN109608760A - A kind of pressure gauge housing PP composite material - Google Patents
A kind of pressure gauge housing PP composite material Download PDFInfo
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- CN109608760A CN109608760A CN201811289023.3A CN201811289023A CN109608760A CN 109608760 A CN109608760 A CN 109608760A CN 201811289023 A CN201811289023 A CN 201811289023A CN 109608760 A CN109608760 A CN 109608760A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of pressure gauge housing PP composite material, raw material includes: 100 parts of polypropylene, 8-20 parts of polycarbonate, 4-12 parts of linear low density polyethylene, 2-5 parts of composite fibre, 2-5 parts of Brown Alundum, 1-6 parts of calcium sulfate, 2-7 parts of talcum powder, 3-8 parts of wollastonite, 2-7 parts of nano-titanium dioxide, 0.1-0.28 parts of UV resistant agent, 1-2.5 parts of silane coupling agent, 0.1-0.4 parts of itaconic acid grafted polypropylene acid anhydride by weight.Pressure gauge housing PP composite material proposed by the present invention, intensity is high, good impact resistance, and ageing-resistant performance is excellent.
Description
Technical field
The present invention relates to field of instrumentation technology more particularly to a kind of pressure gauge housing PP composite materials.
Background technique
Polypropylene (PP) is one of widely used plastic product, with heat-resisting, corrosion-resistant, density is small, easy processing etc.
Advantage, has been widely used in the multiple fields such as auto industry, household electrical appliance, food packaging, building decoration at present, but poly- third
Alkene shock resistance is poor, and more easy to aging, use its as sheathing material make pressure gauge during use, be easy to appear
The aging phenomena such as surface yellowing, cracking produce strong influence to its normal use.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of pressure gauge housing polypropylene composite materials materials
Material, intensity is high, good impact resistance, and ageing-resistant performance is excellent.
A kind of pressure gauge housing PP composite material proposed by the present invention, raw material includes: polypropylene by weight
100 parts, 8-20 parts of polycarbonate, 4-12 parts of linear low density polyethylene, 2-5 parts of composite fibre, 2-5 parts of Brown Alundum, calcium sulfate
1-6 parts, it is 2-7 parts of talcum powder, 3-8 parts of wollastonite, 2-7 parts of nano-titanium dioxide, 0.1-0.28 parts of UV resistant agent, silane coupled
1-2.5 parts of agent, 0.1-0.4 parts of itaconic acid grafted polypropylene acid anhydride.
Preferably, the composite fibre is the mixture of glass fibre, ramee, and glass fibre, ramee
Weight ratio is 4-15:1-2.
Preferably, the nano-titanium dioxide is modified nano-titanium dioxide；The modified nano-titanium dioxide according to
Prepared by lower technique: antioxidant GM and triethylamine being added in dimethyl sulfoxide and are uniformly mixed, is heated up under the protection of nitrogen
To 50-65 DEG C, 4- mercapto ethylpyridine is added, is stirred to react 13-22h, is added to the water after reaction, be filtered, washed after stirring,
It is dried to obtain material A；Material A and succinic acid are added in anhydrous methanol, are warming up to 50-60 DEG C, sodium hydrate aqueous solution is added,
80-120min is stirred, lanthanum chloride is added, is stirred to react 150-220min, is filtered, washed after reaction, is dried to obtain material
B；Material B and nano-titanium dioxide are added in open mill, discharging obtains the modification after 55-65 DEG C of mixing 50-100min
Nano-titanium dioxide.
Preferably, the average grain diameter of the nano-titanium dioxide is 50-85nm.
Preferably, in the preparation process of modified nano-titanium dioxide, the molar ratio of antioxidant GM, 4- mercapto ethylpyridine is
1:1-1.2；Material A, succinic acid, lanthanum chloride molar ratio be 1:1:0.5-1.3；Material B, nano-titanium dioxide weight ratio be
3-8:100.
Preferably, the UV resistant agent is the mixture of ultraviolet absorbent UV-531, ultraviolet absorbing agent UV-770,
And the weight ratio of ultraviolet absorbent UV-531, ultraviolet absorbing agent UV-770 are 2-10:3-7.
Preferably, the silane coupling agent is the mixture of silane resin acceptor kh-550, Silane coupling reagent KH-570, and silicon
Alkane coupling agent KH-550, Silane coupling reagent KH-570 weight ratio be 1-5:2-8.
Pressure gauge housing PP composite material of the present invention can be prepared according to conventional PP composite material
Technique is prepared.
Pressure gauge housing PP composite material of the present invention joined linear low density polyethylene in raw material,
After the control of its ratio, cooperate with polypropylene and polycarbonate, in the effect of silane coupling agent and itaconic acid grafted polypropylene acid anhydride
Under, compatibility is good, plays synergistic effect, improves the low-temperature impact resistance of composite material；In wollastonite addition system, simultaneously
Cooperation joined silane coupling agent and itaconic acid grafted polypropylene acid anhydride, so that it is uniformly dispersed in system, and the combination of matrix
Power is strong, when being hit, glutinous extract is taken off from system and is broken, fricting movement is produced between rigid particles and matrix, and
Make boundary layer that plastic deformation, composite fibre, Brown Alundum, calcium sulfate, talcum powder, nano-titanium dioxide with appropriate mass occur
Cooperation, enhances system, on the basis of guaranteeing that composite impact performance is stablized, improves the stretching of composite material
Intensity and bending strength improve lacking for tensile strength caused by the addition because of linear low density polyethylene and bending strength decline
It falls into；In the preparation process of preferred embodiment modified nano-titanium dioxide, first using antioxidant GM and 4- mercapto ethylpyridine as raw material,
Under the action of triethylamine, reacts the double bond in antioxidant GM with the sulfydryl in 4- mercapto ethylpyridine, the two is combined
It is integrated, has obtained the material A of Sulfide-containing Hindered and pyridine, later using succinic acid as oxygen-containing ligands, using material A as containing n-donor ligand, with
Lanthanum chloride is metal salt, makes the oxygen in nitrogen and succinic acid in lanthanum and material A that complexation reaction have occurred, has obtained material B, with
After material B is mixed in open mill with nano-titanium dioxide, the effect of hydrogen bond and coordinate bond is existed simultaneously between the two, the two is tied
Conjunction has obtained modified nano-titanium dioxide, is added into system, is uniformly dispersed in system, strong with the binding force of matrix, because
It wherein introduces hindered phenol structure while generating thioether and rare earth compounding, wherein lanthanum ion forms firm with ligand
La-N key, thermal stability is good, while unoccupied orbital therein can form the stable rare earth of chemical property in conjunction with oxygen radical
Compound cooperates with hindered phenol and thioether antioxidant groups to enhance the heat-resisting oxygen of composite material to terminate the reaction of polymer
Ageing properties cooperate with UV resistant agent, have delayed polyacrylic degradation, improve the heat resistance of composite material and ageing-resistant
Property；UV resistant agent has been specifically chosen the mixture of ultraviolet absorbent UV-531, ultraviolet absorbing agent UV-770, and will be ultraviolet
The weight ratio control of light absorbers UV-531, ultraviolet absorbing agent UV-770 are 2-10:3-7, further improve composite material
Heat oxygen aging resistance and resistance to UV aging energy；Silane coupling agent has been specifically chosen silane resin acceptor kh-550, silane coupled
The mixture of agent KH-570, and the weight ratio of silane resin acceptor kh-550, Silane coupling reagent KH-570 is controlled as 1-5:2-8,
Wherein, stronger chemical bond or hydrogen bond action are formed between silane resin acceptor kh-550 amido-containing group energy and inorganic filler,
The terminal double bond of Silane coupling reagent KH-570 further increases the compatibility with matrix simultaneously, and both sides synergistic effect makes body
The compatibility of system is good, and mechanical property promotes effect and realizes most preferably.
Composite material in the present invention is subjected to performance detection, wherein tensile property is measured according to GB/T 1040-2006,
Bending property is measured according to GB/T 9341-2008, and cantilever beam impact strength is measured according to GB/T 1843-2008；After tested may be used
Know, tensile strength reaches 25.4MPa or more, and elongation at break reaches 43% or more, and bending strength is 35.43MPa or more, curved
Bent modulus reaches 2478MPa or more, and notch impact strength reaches 10.32kJ/m2More than；Through xenon lamp artificial accelerated aging 2000h
Afterwards, tensile strength, elongation at break and Izod notched impact strength conservation rate are kept at 99.5%, 69.3% and
95.6% or more.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of pressure gauge housing PP composite material proposed by the present invention, raw material includes: polypropylene by weight
100 parts, 20 parts of polycarbonate, 4 parts of linear low density polyethylene, 5 parts of composite fibre, 2 parts of Brown Alundum, 6 parts of calcium sulfate, talcum powder
2 parts, 8 parts of wollastonite, 2 parts of nano-titanium dioxide, 0.28 part of UV resistant agent, 1 part of silane coupling agent, itaconic acid grafted polypropylene
0.4 part of acid anhydride.
Embodiment 2
A kind of pressure gauge housing PP composite material proposed by the present invention, raw material includes: polypropylene by weight
100 parts, 8 parts of polycarbonate, 12 parts of linear low density polyethylene, 2 parts of composite fibre, 5 parts of Brown Alundum, 1 part of calcium sulfate, talcum powder
7 parts, 3 parts of wollastonite, 7 parts of nano-titanium dioxide, 0.1 part of UV resistant agent, 2.5 parts of silane coupling agent, polypropylene grafted clothing health
0.1 part of acid anhydrides.
Embodiment 3
A kind of pressure gauge housing PP composite material proposed by the present invention, raw material includes: polypropylene by weight
100 parts, 17 parts of polycarbonate, 6 parts of linear low density polyethylene, 4.3 parts of composite fibre, 3 parts of Brown Alundum, 5 parts of calcium sulfate, talcum
It is 3.6 parts of powder, 7 parts of wollastonite, 3 parts of nano-titanium dioxide, 0.25 part of UV resistant agent, 1.6 parts of silane coupling agent, polypropylene grafted
0.36 part of itaconic anhydride；
Wherein, the composite fibre is the mixture of glass fibre, ramee, and the weight of glass fibre, ramee
Amount is than being 4:2；
The nano-titanium dioxide is modified nano-titanium dioxide；The modified nano-titanium dioxide according to following technique into
Row preparation: antioxidant GM and triethylamine are added in dimethyl sulfoxide and are uniformly mixed, 50 DEG C are warming up under the protection of nitrogen, is added
Enter 4- mercapto ethylpyridine, be stirred to react 22h, be added to the water after reaction, is filtered, washed after stirring, is dried to obtain material A；
Material A and succinic acid are added in anhydrous methanol, are warming up to 60 DEG C, sodium hydrate aqueous solution is added, stirs 120min, chlorine is added
Change lanthanum, is stirred to react 150min, is filtered, washed after reaction, is dried to obtain material B；Material B is added with nano-titanium dioxide
Enter in open mill, discharging obtains the modified nano-titanium dioxide after 65 DEG C of mixing 50min；
The average grain diameter of the nano-titanium dioxide is 85nm；
In the preparation process of modified nano-titanium dioxide, the molar ratio of antioxidant GM, 4- mercapto ethylpyridine is 1:1；Object
Expect A, succinic acid, lanthanum chloride molar ratio be 1:1:1.3；Material B, nano-titanium dioxide weight ratio be 3:100；
The UV resistant agent is the mixture of ultraviolet absorbent UV-531, ultraviolet absorbing agent UV-770, and ultraviolet
Light absorbers UV-531, ultraviolet absorbing agent UV-770 weight ratio be 10:3；
The silane coupling agent is the mixture of silane resin acceptor kh-550, Silane coupling reagent KH-570, and silane coupled
Agent KH-550, Silane coupling reagent KH-570 weight ratio be 5:2.
Embodiment 4
A kind of pressure gauge housing PP composite material proposed by the present invention, raw material includes: polypropylene by weight
100 parts, 11 parts of polycarbonate, 10 parts of linear low density polyethylene, 2.8 parts of composite fibre, 4.2 parts of Brown Alundum, 2 parts of calcium sulfate,
6.2 parts of talcum powder, 4 parts of wollastonite, 5.2 parts of nano-titanium dioxide, 0.16 part of UV resistant agent, 2.1 parts of silane coupling agent, poly- third
Alkene is grafted 0.18 part of itaconic anhydride；
Wherein, the composite fibre is the mixture of glass fibre, ramee, and the weight of glass fibre, ramee
Amount is than being 15:1；
The nano-titanium dioxide is modified nano-titanium dioxide；The modified nano-titanium dioxide according to following technique into
Row preparation: antioxidant GM and triethylamine are added in dimethyl sulfoxide and are uniformly mixed, 65 DEG C are warming up under the protection of nitrogen, is added
Enter 4- mercapto ethylpyridine, be stirred to react 13h, be added to the water after reaction, is filtered, washed after stirring, is dried to obtain material A；
Material A and succinic acid are added in anhydrous methanol, are warming up to 50 DEG C, sodium hydrate aqueous solution is added, stirs 80min, chlorine is added
Change lanthanum, is stirred to react 220min, is filtered, washed after reaction, is dried to obtain material B；Material B is added with nano-titanium dioxide
Enter in open mill, discharging obtains the modified nano-titanium dioxide after 55 DEG C of mixing 100min；
The average grain diameter of the nano-titanium dioxide is 50nm；
In the preparation process of modified nano-titanium dioxide, the molar ratio of antioxidant GM, 4- mercapto ethylpyridine is 1:1.2；
Material A, succinic acid, lanthanum chloride molar ratio be 1:1:0.5；Material B, nano-titanium dioxide weight ratio be 8:100；
The UV resistant agent is the mixture of ultraviolet absorbent UV-531, ultraviolet absorbing agent UV-770, and ultraviolet
Light absorbers UV-531, ultraviolet absorbing agent UV-770 weight ratio be 2:7；
The silane coupling agent is the mixture of silane resin acceptor kh-550, Silane coupling reagent KH-570, and silane coupled
Agent KH-550, Silane coupling reagent KH-570 weight ratio be 1:8.
Embodiment 5
A kind of pressure gauge housing PP composite material proposed by the present invention, raw material includes: polypropylene by weight
100 parts, 15 parts of polycarbonate, 9 parts of linear low density polyethylene, 3 parts of composite fibre, 3.5 parts of Brown Alundum, 3 parts of calcium sulfate, talcum
5 parts of powder, 7 parts of wollastonite, 5 parts of nano-titanium dioxide, 0.18 part of UV resistant agent, 2 parts of silane coupling agent, polypropylene grafted clothing health
0.3 part of acid anhydrides；
Wherein, the composite fibre is the mixture of glass fibre, ramee, and the weight of glass fibre, ramee
Amount is than being 12:1.7；
The nano-titanium dioxide is modified nano-titanium dioxide；The modified nano-titanium dioxide according to following technique into
Row preparation: antioxidant GM and triethylamine are added in dimethyl sulfoxide and are uniformly mixed, 58 DEG C are warming up under the protection of nitrogen, is added
Enter 4- mercapto ethylpyridine, be stirred to react 17h, be added to the water after reaction, is filtered, washed after stirring, is dried to obtain material A；
Material A and succinic acid are added in anhydrous methanol, are warming up to 56 DEG C, sodium hydrate aqueous solution is added, stirs 100min, chlorine is added
Change lanthanum, is stirred to react 180min, is filtered, washed after reaction, is dried to obtain material B；Material B is added with nano-titanium dioxide
Enter in open mill, discharging obtains the modified nano-titanium dioxide after 60 DEG C of mixing 85min；
The average grain diameter of the nano-titanium dioxide is 70nm；
In the preparation process of modified nano-titanium dioxide, the molar ratio of antioxidant GM, 4- mercapto ethylpyridine is 1:1.1；
Material A, succinic acid, lanthanum chloride molar ratio be 1:1:1；Material B, nano-titanium dioxide weight ratio be 7:100；
The UV resistant agent is the mixture of ultraviolet absorbent UV-531, ultraviolet absorbing agent UV-770, and ultraviolet
Light absorbers UV-531, ultraviolet absorbing agent UV-770 weight ratio be 7:5；
The silane coupling agent is the mixture of silane resin acceptor kh-550, Silane coupling reagent KH-570, and silane coupled
Agent KH-550, Silane coupling reagent KH-570 weight ratio be 3:5.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of pressure gauge housing PP composite material, which is characterized in that its raw material includes: polypropylene 100 by weight
Part, 8-20 parts of polycarbonate, 4-12 parts of linear low density polyethylene, 2-5 parts of composite fibre, 2-5 parts of Brown Alundum, calcium sulfate 1-6
Part, 2-7 parts of talcum powder, 3-8 parts of wollastonite, 2-7 parts of nano-titanium dioxide, 0.1-0.28 parts of UV resistant agent, silane coupling agent
1-2.5 parts, 0.1-0.4 parts of itaconic acid grafted polypropylene acid anhydride.
2. pressure gauge housing PP composite material according to claim 1, which is characterized in that the composite fibre is glass
The mixture of glass fiber, ramee, and the weight ratio of glass fibre, ramee is 4-15:1-2.
3. pressure gauge housing PP composite material according to claim 1 or claim 2, which is characterized in that the nano-silica
Change titanium is modified nano-titanium dioxide；The modified nano-titanium dioxide is prepared according to following technique: by antioxidant GM and
Triethylamine is added in dimethyl sulfoxide and is uniformly mixed, and 50-65 DEG C is warming up under the protection of nitrogen, and 4- mercapto ethylpyridine is added,
It is stirred to react 13-22h, is added to the water after reaction, is filtered, washed after stirring, is dried to obtain material A；By material A and fourth two
Acid is added in anhydrous methanol, is warming up to 50-60 DEG C, and sodium hydrate aqueous solution is added, and stirs 80-120min, and lanthanum chloride is added, stirs
Reaction 150-220min is mixed, is filtered, washed after reaction, is dried to obtain material B；Material B and nano-titanium dioxide are added
In open mill, discharging obtains the modified nano-titanium dioxide after 55-65 DEG C of mixing 50-100min.
4. pressure gauge housing PP composite material according to claim 3, which is characterized in that the nano-titanium dioxide
Average grain diameter be 50-85nm.
5. according to the pressure gauge housing PP composite material of claim 3 or 4, which is characterized in that in modified Nano two
In the preparation process of titanium oxide, the molar ratio of antioxidant GM, 4- mercapto ethylpyridine is 1:1-1.2；Material A, succinic acid, lanthanum chloride
Molar ratio be 1:1:0.5-1.3；Material B, nano-titanium dioxide weight ratio be 3-8:100.
6. pressure gauge housing PP composite material described in any one of -5 according to claim 1, which is characterized in that described anti-
Ultraviolet light agent be ultraviolet absorbent UV-531, ultraviolet absorbing agent UV-770 mixture, and ultraviolet absorbent UV-531,
The weight ratio of ultraviolet absorbing agent UV-770 is 2-10:3-7.
7. pressure gauge housing PP composite material described in any one of -6 according to claim 1, which is characterized in that the silicon
Alkane coupling agent is the mixture of silane resin acceptor kh-550, Silane coupling reagent KH-570, and silane resin acceptor kh-550, silane are even
The weight ratio for joining agent KH-570 is 1-5:2-8.
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| CN111171525A (en) * | 2019-12-31 | 2020-05-19 | 日彩复合塑料(深圳)有限公司 | PBT reclaimed material and preparation method thereof |
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Application publication date: 20190412 |