CN115678270A - Glass fiber modified polyamide and sleeve thereof - Google Patents
Glass fiber modified polyamide and sleeve thereof Download PDFInfo
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- CN115678270A CN115678270A CN202211281265.4A CN202211281265A CN115678270A CN 115678270 A CN115678270 A CN 115678270A CN 202211281265 A CN202211281265 A CN 202211281265A CN 115678270 A CN115678270 A CN 115678270A
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- glass fiber
- modified polyamide
- parts
- fiber modified
- polyamide
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- 239000003365 glass fiber Substances 0.000 title claims abstract description 41
- 239000004952 Polyamide Substances 0.000 title claims abstract description 40
- 229920002647 polyamide Polymers 0.000 title claims abstract description 40
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000002250 absorbent Substances 0.000 claims abstract description 5
- 230000002745 absorbent Effects 0.000 claims abstract description 5
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 5
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- 239000012024 dehydrating agents Substances 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 16
- -1 PA613 Polymers 0.000 claims description 14
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 8
- 239000007983 Tris buffer Substances 0.000 claims description 7
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 5
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 5
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 4
- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 claims description 4
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 4
- JIHQDMXYYFUGFV-UHFFFAOYSA-N 1,3,5-triazine Chemical compound C1=NC=NC=N1 JIHQDMXYYFUGFV-UHFFFAOYSA-N 0.000 claims description 3
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 claims description 3
- 125000003143 4-hydroxybenzyl group Chemical group [H]C([*])([H])C1=C([H])C([H])=C(O[H])C([H])=C1[H] 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 claims description 3
- ULBTUVJTXULMLP-UHFFFAOYSA-N butyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCCC ULBTUVJTXULMLP-UHFFFAOYSA-N 0.000 claims description 3
- INJVFBCDVXYHGQ-UHFFFAOYSA-N n'-(3-triethoxysilylpropyl)ethane-1,2-diamine Chemical compound CCO[Si](OCC)(OCC)CCCNCCN INJVFBCDVXYHGQ-UHFFFAOYSA-N 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 claims description 2
- AIBRSVLEQRWAEG-UHFFFAOYSA-N 3,9-bis(2,4-ditert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP1OCC2(COP(OC=3C(=CC(=CC=3)C(C)(C)C)C(C)(C)C)OC2)CO1 AIBRSVLEQRWAEG-UHFFFAOYSA-N 0.000 claims description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 125000004423 acyloxy group Chemical group 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 239000013522 chelant Substances 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 229940057995 liquid paraffin Drugs 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 2
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 2
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 2
- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical compound COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 3
- UMHKOAYRTRADAT-UHFFFAOYSA-N [hydroxy(octoxy)phosphoryl] octyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OP(O)(=O)OCCCCCCCC UMHKOAYRTRADAT-UHFFFAOYSA-N 0.000 claims 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 claims 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 9
- 238000000465 moulding Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000007723 die pressing method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- MTUBBMSQXXJFQP-UHFFFAOYSA-N OC(CCCCCCCCCCCCCCCCC(=O)OCC(O)CO)(O)O Chemical compound OC(CCCCCCCCCCCCCCCCC(=O)OCC(O)CO)(O)O MTUBBMSQXXJFQP-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- HTDKEJXHILZNPP-UHFFFAOYSA-N dioctyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OCCCCCCCC HTDKEJXHILZNPP-UHFFFAOYSA-N 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a glass fiber modified polyamide and a preparation method of a sleeve thereof, belonging to the technical field of tunnel engineering. The glass fiber modified polyamide prepared by the invention comprises the following raw materials in parts by weight: 50-60 parts of polyamide, 30-35 parts of glass fiber, 1-5 parts of compatilizer, 0.2-1 part of anti-aging agent, 0.2-1 part of ultraviolet absorbent, 0.1-2 parts of coupling agent, 0.1-1 part of moistening agent and 0.1-2 parts of dehydrating agent. According to the invention, the structural strength is increased by adjusting the proportion of the polyamide materials and adding the glass fiber, and the oxidation resistance and the ageing resistance of the bolt sleeve are improved, so that the durability of the bolt sleeve is ensured.
Description
Technical Field
The invention belongs to the technical field of tunnel engineering, and particularly relates to glass fiber modified polyamide and a sleeve thereof.
Background
For the shield tunnel, the lining structure is mainly reinforced concrete segments, the connection between the segments is usually realized by bolts at present, and the domestic common bolt connection mode mainly comprises straight bolts, bent bolts and inclined bolts. Compared with the existing three bolts, a single straight bolt or a single bent bolt is required to be provided with two hand holes on a duct piece to provide an operation space for fastening bolts, so that the number of longitudinal and reversing connecting bolts of a single duct piece is up to 5 or more, the number of corresponding hand holes is more than 10, a single inclined bolt is only required to be provided with one hand hole and one embedded bolt sleeve, the number of the longitudinal and reversing connecting bolts of the single duct piece is 5, the number of the embedded bolt sleeves of the single duct piece is 5, and the thickness of the shield duct piece is generally 30-55cm and the like according to engineering requirements; because the existence of a large amount of bolt hand holes, very big influence section of jurisdiction integrality, reduced structural strength, especially reduced joint position section of jurisdiction intensity. And adopt oblique bolted connection reducible half hand hole, reduce the weakening to the section of jurisdiction, but the application of oblique bolt is not very extensive at present, rectifies its reason mainly for factors such as buried bolt cover durability, body intensity, withdrawal resistance and section of jurisdiction bolt hole accurate positioning, fast fastening.
Therefore, a set of shield segment inclined bolt joint connecting device and a matched construction process are urgently needed to improve segment structural strength and assembly efficiency.
Disclosure of Invention
The invention aims to provide glass fiber modified polyamide and a sleeve thereof, which solve the problems in the background art.
The purpose of the invention can be realized by the following technical scheme:
the glass fiber modified polyamide comprises the following raw materials in parts by weight: 50-60 parts of polyamide, 30-35 parts of glass fiber, 1-5 parts of compatilizer, 0.2-1 part of anti-aging agent, 0.2-1 part of ultraviolet absorbent, 0.1-2 parts of coupling agent, 0.1-1 part of moistening agent and 0.1-2 parts of dehydrating agent.
Further, the polyamide is obtained by mixing one or more of PA66, PA6, PA613, PA11, PA1010 and PA1313 in any ratio.
Furthermore, the glass fiber is glass powder, and the size of the glass fiber is 10-70um in diameter and 3-20mm in length.
Further, the compatilizer is prepared by mixing any one or more of SBS-g-MAH, ABS-g-MAH, EPDM-g-GMA, PE-g-GMA, POE-g-GMA and POE-g-MAH in any ratio.
Further, the anti-aging agent is one or more of bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite, tris (2, 4-di-tert-butyl) phosphite, 1,3, 5-tris (3, 5-di-tert-butyl, 4-hydroxybenzyl) s-triazine and pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] in any ratio.
Further, the ultraviolet absorbent is any one or more of phenyl ortho-hydroxybenzoate, 2, 4-dihydroxybenzophenone (UV-O), 2-hydroxy-4-methoxybenzophenone (UV-9), 2-hydroxy-4-n-octoxybenzophenone (UV-531), 2- (2-hydroxy-5-methylphenyl) benzotriazole (UV-P), 2- (2-hydroxy-3, 5 bis (a, a-dimethylbenzyl) phenyl) benzotriazole (UV-234) and 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole (UV-326) which are mixed in any ratio.
Further, the coupling agent is one or more of gamma-aminopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, isopropyl dioleate acyloxy (dioctylphosphate) titanate, bis (dioctyloxypyrophosphate) ethylene titanate, a chelate of bis (dioctyloxypyrophosphate) ethylene titanate and triethanolamine, trimethyl aluminate triisopropyl aluminate, tribenzyl aluminate and gamma-glycidyl ether oxypropyltrimethoxysilane, which are mixed in any ratio.
Further, the lubricant is obtained by mixing any one or more of zinc stearate, N-Ethylene Bis Stearamide (EBS), oleamide, N-Butyl Stearate (BS), glycerol trihydroxystearate, microcrystalline paraffin, liquid paraffin, solid paraffin, polyethylene wax, oxidized polyethylene wax, methyl silicone oil, benzyl silicone oil, ethyl silicone oil, polyethylene, polypropylene and ABS resin in any ratio.
Further, the dehydrating agent is one or more of phosphorus pentoxide, trimethyl phosphite and acetic anhydride which are mixed in any ratio.
The preparation method of the glass fiber modified polyamide comprises the following steps: weighing the components, mixing and plasticizing polyamide, glass fiber, SBS-g-MAH, tris (2, 4-di-tert-butyl) phosphite, 2-hydroxy-4-methoxybenzophenone (UV-9), N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N-ethylene bis-stearamide (EBS) and acetic anhydride by using melt mixing equipment with the processing temperature of 250-3500 ℃, opening a double-roll open mill for 10 minutes at the roller temperature of 350 ℃, rotating at the roller speed of 80r/min, hot-pressing and molding by a calender, keeping the mold temperature at 350 ℃ and the pressure at 110MPa, keeping the temperature and the pressure for 2 hours, cooling to 100 ℃ and demolding to obtain the glass fiber modified polyamide.
The sleeve is prepared from any one of the glass fiber modified polyamides.
The sleeve is as the bolt cover, is provided with the installation hand hole in the section of jurisdiction concrete, is connected between installation hand hole and the bolt cover and is provided with connecting bolt, and the bolt cover is including bolt cover straightway and flaring base section, and the bolt cover bottom sets up the flaring base shape design of flaring base section, on the basis of full play material tensile strength, increases bolt cover tip axial withdrawal resistance, and the bolt cover straightway is provided with antitorque commentaries on classics arch. The bolt sleeve outside sets up the screw thread recess to improve bond strength between bolt sleeve and the section of jurisdiction concrete, the inboard is provided with inboard thread. A positioning mark and a laser positioning base point are arranged in the segment concrete, and visual quick coarse positioning and laser centering accurate positioning are adopted, so that the assembling efficiency is quickly improved; meanwhile, the hand-held electric torque wrench is used for accelerating the bolt fastening efficiency.
The invention has the beneficial effects that:
(1) The outer side of the bolt sleeve is provided with the threaded groove, so that a sufficient rough surface is provided, and the bonding strength between the bolt sleeve and the segment concrete is improved. The bottom of the bolt sleeve is designed in a flared shape, and the axial pull-out resistance of the end part of the bolt sleeve is increased on the basis of giving full play to the tensile strength of materials. According to the invention, the duct piece concrete is internally provided with the positioning mark and the laser positioning base point, and visual quick coarse positioning and laser centering accurate positioning are adopted, so that the assembling efficiency is quickly improved; meanwhile, the hand-held electric torque wrench is used for accelerating the bolt fastening efficiency.
(2) The bolt sleeve for the shield tunnel can effectively improve the durability of the segment concrete connecting piece, improve the integral strength of the connecting piece and ensure the operation safety of the shield tunnel. Meanwhile, compared with the conventional steel member, the material cost is reduced, and the engineering investment is effectively reduced. According to the invention, the structural strength of the bolt sleeve is improved by adjusting the proportion of the polyamide materials and adding the glass fiber, and the oxidation resistance and ageing resistance of the bolt sleeve are improved, so that the durability of the bolt sleeve is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a general layout view of the oblique bolt connection system according to the present invention;
FIG. 2 is a cross-sectional view of the bolt sleeve structure of the present invention;
FIG. 3 is a cross-sectional view of the bolt bushing structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. duct piece concrete; 2. a bolt sleeve; 3. a connecting bolt; 4. mounting hand holes; 5. sleeving a straight line section with a bolt; 6. a bottom expanding section; 7. a threaded groove; 8. an anti-twist protrusion; 9. inner thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The preparation method of the glass fiber modified polyamide comprises the following steps:
weighing 65 parts of polyamide, 30 parts of glass fiber, 2 parts of SBS-g-MAH, 1 part of tris (2, 4-di-tert-butyl) phosphite, 0.5 part of 2-hydroxy-4-methoxybenzophenone (UV-9), 0.5 part of N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, 0.5 part of N, N-ethylene bis-stearamide (EBS) and 0.5 part of acetic anhydride, mixing and plasticizing the mixture by using melt mixing equipment with the processing temperature of 250-3500 ℃, then opening a double-roll open mill for 10 minutes, the temperature of a roller is 350 ℃, the rotating speed of the roller is 80r/min, hot die pressing molding is carried out by a calender, the temperature of the die is 350 ℃, the pressure is 110MPa, the temperature is kept and the pressure is maintained for 2 hours, and the die is cooled to 100 ℃ for demoulding to obtain the modified polyamide.
Example 2
The preparation method of the glass fiber modified polyamide comprises the following steps:
weighing 63 parts of polyamide, 32 parts of glass fiber, 1 part of EPDM-g-GMA, 2 parts of tris (2, 4-di-tert-butyl) phosphite, 0.5 part of 2- (2-hydroxy-5-methylphenyl) benzotriazole (UV-P), 0.5 part of N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, 0.5 part of solid paraffin and 0.5 part of acetic anhydride, mixing and plasticizing by using melt mixing equipment with the processing temperature of 250-3500 ℃, then opening a double-roll open mill for 10 minutes, keeping the temperature of a roller at 350 ℃, rotating speed of the roller at 80r/min, hot die pressing and molding by using a calender, keeping the temperature at 350 ℃ and the pressure at 110MPa, keeping the pressure for 2 hours, cooling to 100 ℃ and demolding to obtain the glass fiber modified polyamide.
Example 3
The preparation method of the glass fiber modified polyamide comprises the following steps:
weighing the components in a metered manner, then mixing and plasticizing 60 parts of polyamide, 30 parts of glass fiber, 1 part of POE-g-GMA, 1 part of 1,3, 5-tri (3, 5-di-tert-butyl, 4-hydroxybenzyl) s-triazine, 1 part of 2- (2-hydroxy-3, 5-bis (a, a-dimethylbenzyl) phenyl) benzotriazole (UV-234), 1 part of gamma-glycidyl ether oxypropyl trimethoxy silane, 0.5 part of solid paraffin and 0.5 part of acetic anhydride by melt mixing equipment with the processing temperature of 250-3500 ℃, then opening a double-roller open mill for 10 minutes, keeping the roller temperature at 350 ℃, the roller rotation speed at 80r/min, carrying out hot die pressing molding by a calender, keeping the mold temperature at 350 ℃ and the pressure at 110MPa for 2 hours, cooling to 100 ℃ and demoulding to obtain the glass fiber modified polyamide.
As can be seen from Table 1, the glass fiber modified polyamide prepared by the invention has excellent tensile strength, and the added glass fiber improves the oxidation resistance and aging resistance of the polyamide so as to ensure the durability of the bolt sleeve.
In order to improve the pull-out resistance of the bolt sleeve 2, the invention adopts a bottom expanding type design, utilizes the combined stress of the friction force between the straight line section 5 of the bolt sleeve and the segment concrete 1 and the end bearing force of the bottom expanding section 6 to improve the pull-out resistance of the bolt sleeve 2, and is provided with the thread groove 7 with the outer edge of the bolt sleeve 2 to improve the bonding force between the bolt sleeve 2 and the segment concrete 1. And simultaneously, the bolt sleeve 2 is prevented from rotating in the bolt fastening process.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (10)
1. The glass fiber modified polyamide is characterized in that: the glass fiber modified polyamide comprises the following raw materials in parts by weight: 50-60 parts of polyamide, 30-35 parts of glass fiber, 1-5 parts of compatilizer, 0.2-1 part of anti-aging agent, 0.2-1 part of ultraviolet absorbent, 0.1-2 parts of coupling agent, 0.1-1 part of moistening agent and 0.1-2 parts of dehydrating agent.
2. The glass fiber modified polyamide of claim 1, wherein: the polyamide is obtained by mixing one or more of PA66, PA6, PA613, PA11, PA1010 and PA1313 in any ratio.
3. The glass fiber modified polyamide as claimed in claim 1, characterized in that: the glass fiber is glass powder, and the size of the glass fiber is 10-70um in diameter and 3-20mm in length.
4. The glass fiber modified polyamide as claimed in claim 1, characterized in that: the compatilizer is any one or a mixture of more than one of SBS-g-MAH, ABS-g-MAH, EPDM-g-GMA, PE-g-GMA, POE-g-GMA and POE-g-MAH in any ratio.
5. The glass fiber modified polyamide of claim 1, wherein: the anti-aging agent is prepared by mixing any one or more of bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite, tris (2, 4-di-tert-butyl) phosphite, 1,3, 5-tris (3, 5-di-tert-butyl, 4-hydroxybenzyl) s-triazine and tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester in any ratio.
6. The glass fiber modified polyamide of claim 1, wherein: the ultraviolet absorbent is obtained by mixing any one or more of phenyl ortho-hydroxybenzoate, 2, 4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octyloxybenzophenone, 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2- (2-hydroxy-3, 5 bis (a, a-dimethylbenzyl) phenyl) benzotriazole and 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole at any ratio.
7. The glass fiber modified polyamide as claimed in claim 1, characterized in that: the coupling agent is one or more of gamma-aminopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, isopropyl dioleate acyloxy (dioctyl phosphate acyloxy) titanate, bis (dioctyl pyrophosphate) ethylene titanate, a chelate of bis (dioctyl pyrophosphate) ethylene titanate and triethanolamine, trimethyl aluminate triisopropyl aluminate, tribenzyl aluminate and gamma-glycidyl ether oxypropyltrimethoxysilane which are mixed in any ratio.
8. The glass fiber modified polyamide of claim 1, wherein: the lubricant is obtained by mixing any one or more of zinc stearate, N-ethylene bis stearamide, oleamide, N-butyl stearate, glycerol trihydroxy stearate, microcrystalline paraffin, liquid paraffin, solid paraffin, polyethylene wax, oxidized polyethylene wax, methyl silicone oil, benzyl silicone oil, ethyl silicone oil, polyethylene, polypropylene and ABS resin in any ratio.
9. The glass fiber modified polyamide as claimed in claim 1, characterized in that: the dehydrating agent is obtained by mixing any one or more of phosphorus pentoxide, trimethyl phosphite and acetic anhydride in any ratio.
10. A sleeve prepared from the glass fiber modified polyamide as claimed in any one of claims 1 to 9.
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| CN202211281265.4A CN115678270B (en) | 2022-10-19 | 2022-10-19 | Glass fiber modified polyamide and sleeve thereof |
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| CN202211281265.4A CN115678270B (en) | 2022-10-19 | 2022-10-19 | Glass fiber modified polyamide and sleeve thereof |
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| CN115678270B CN115678270B (en) | 2024-04-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620123Y (en) * | 2003-03-11 | 2004-06-09 | 上海市城市建设设计研究院 | Preburied plastic bolt cover for steel reinforced concrete |
| JP2009035593A (en) * | 2007-07-31 | 2009-02-19 | Unitika Ltd | Glass fiber-reinforced polyamide resin composition |
| WO2013004763A1 (en) * | 2011-07-05 | 2013-01-10 | Smp Swiss Macro Polymers Ag | Assembly comprising a woven sleeve and hardening material for fastening an anchoring element in a drilled hole |
| JP2019085813A (en) * | 2017-11-09 | 2019-06-06 | Ｆｓテクニカル株式会社 | Adhesive anchor and installation method of adhesive anchor |
| CN111019334A (en) * | 2019-12-24 | 2020-04-17 | 上海中镭新材料科技有限公司 | Glass fiber reinforced polyamide material and preparation method and application thereof |
-
2022
- 2022-10-19 CN CN202211281265.4A patent/CN115678270B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620123Y (en) * | 2003-03-11 | 2004-06-09 | 上海市城市建设设计研究院 | Preburied plastic bolt cover for steel reinforced concrete |
| JP2009035593A (en) * | 2007-07-31 | 2009-02-19 | Unitika Ltd | Glass fiber-reinforced polyamide resin composition |
| WO2013004763A1 (en) * | 2011-07-05 | 2013-01-10 | Smp Swiss Macro Polymers Ag | Assembly comprising a woven sleeve and hardening material for fastening an anchoring element in a drilled hole |
| JP2019085813A (en) * | 2017-11-09 | 2019-06-06 | Ｆｓテクニカル株式会社 | Adhesive anchor and installation method of adhesive anchor |
| CN111019334A (en) * | 2019-12-24 | 2020-04-17 | 上海中镭新材料科技有限公司 | Glass fiber reinforced polyamide material and preparation method and application thereof |
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| CN115678270B (en) | 2024-04-09 |
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