CN114735948B - Alkali-resistant glass fiber impregnating compound for replacing steel fibers - Google Patents

Alkali-resistant glass fiber impregnating compound for replacing steel fibers Download PDF

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CN114735948B
CN114735948B CN202210175096.XA CN202210175096A CN114735948B CN 114735948 B CN114735948 B CN 114735948B CN 202210175096 A CN202210175096 A CN 202210175096A CN 114735948 B CN114735948 B CN 114735948B
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film forming
forming agent
agent
alkali
percent
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CN114735948A (en
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任川荣
盛祖涵
张棋
贾媛媛
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Shaanxi Huiyouji New Material Co ltd
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Shaanxi Huiyouji New Material Co ltd
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/12General methods of coating; Devices therefor
    • C03C25/16Dipping
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10Coating
    • C03C25/24Coatings containing organic materials
    • C03C25/26Macromolecular compounds or prepolymers
    • C03C25/32Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • C03C25/36Epoxy resins
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses an alkali-resistant glass fiber impregnating compound for replacing steel fibers, which consists of a film forming agent, a silane coupling agent, an organic curing agent, a lubricant, glacial acetic acid and deionized water, wherein the film forming agent comprises the following components in percentage by mass (10-20): (4-10): (2-10): (0.5-5), an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent. The alkali-resistant glass fiber impregnating compound disclosed by the invention is suitable for chopped fibers with the thickness of 3-50 mm, and the produced alkali-resistant chopped glass fibers have good alkali resistance, water resistance, high-speed shearing resistance and wear resistance, have the rigidity and stiffness of steel fibers, can still maintain the original form after high-speed stirring friction shearing, are uniformly dispersed, do not break, break and have no hairiness.

Description

Alkali-resistant glass fiber impregnating compound for replacing steel fibers
Technical Field
The invention belongs to the technical field of glass fiber sizing agents, and particularly relates to an alkali-resistant glass fiber sizing agent for replacing steel fibers.
Background
Alkali-resistant glass fiber is different from common alkali-free and medium alkali glass fiber, and the alkali-resistant property of the alkali-resistant glass fiber is mainly that the alkali-resistant glass fiber contains glass components and SiO 2 (58%-62%)、Na 2 O (8% -13%) and ZrO 2 (13%-16%)、TiO 2 (4% -8%), they are characterized by that it can effectively resist the corrosion of high-alkali substances in cement. The reinforced material is mainly used for reinforcing cement concrete products, and replaces steel and asbestos in non-bearing cement components.
Chinese patent CN 103466963a describes an alkali-resistant chopped glass fiber sizing formulation, the alkali-resistant chopped fiber coated with the sizing formulation can only be chopped after drying in the processing technology, this technology has a damaging effect on the fastness of bonding between fibers, and affects the bundling property of fibers, if an off-line wet cutting technology is adopted, bonding and holding back between fibers are very good, but the bonding between each bundle of fibers is generated, and the use requirement cannot be satisfied; and the glass fiber at the production place of the sizing agent is only suitable for the requirements of common cement products under the conditions of stirring speed of 60r/min-120r/min and stirring time of 1-5 min, if the sizing agent is used for replacing steel fiber reinforced cement concrete products, the coated fiber is subjected to high-speed shearing influence under the conditions of stirring time of more than 400r/min and more than 5 min, and fiber opening, breakage and hairiness appear, so that the cement products are nonuniform in strength and reduced in mechanical property.
Meanwhile, in the prior art, when the fiber reinforced cement is used for reinforcing cement concrete, the addition amount of the steel fiber is 40-80kg/m 3 The addition amount is large, and the surface of the steel fiber is easy to be corroded to generate rust spots, so that the appearance is affected. The sizing agent has special property, and the components of the sizing agent are not universal for different glass fibers.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an alkali-resistant glass fiber impregnating compound for replacing steel fibers, and the glass fibers at the production place have the advantages of high-speed shearing resistance, strong friction resistance, high rigidity and hardness and good dispersibility, can meet the requirements of off-line wet continuous short cutting and continuous drying, can replace steel fiber reinforced concrete and can meet the requirements of a high-speed stirring and mixing process.
The alkali-resistant glass fiber impregnating compound for replacing steel fibers consists of a film forming agent, a silane coupling agent, an organic curing agent, a lubricant, glacial acetic acid and deionized water, wherein the film forming agent comprises the following components in percentage by mass (10-20): (4-10): (2-10): (0.5-5), an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent.
The epoxy acrylic copolymer film forming agent, the epoxy emulsion film forming agent and the styrene-acrylic emulsion film forming agent all adopt the prior art, can adopt products sold in the market, and can also be prepared by adopting a method of the prior art; the modified acrylic ester film forming agent can be prepared by a conventional modification method, and can also be a commercially available conventional modified product.
Preferably, the impregnating compound consists of the following raw materials in percentage by weight, calculated by 100% by weight:
10 to 20 portions of epoxy acrylic copolymer film forming agent,
4-10 parts of modified acrylic ester film forming agent,
2-10 parts of an epoxy emulsion film forming agent,
0.5 to 5 percent of styrene-acrylic emulsion film forming agent,
0.02 to 1.0 percent of glacial acetic acid,
silane coupling agent 0.2-2.0,
0.1 to 1.0 percent of organic curing agent,
0.05 to 2.0 percent of lubricant,
49.5 to 83.13 portions of deionized water.
More preferably, the film forming agent comprises the following components in percentage by mass (12-18): (5-9): (3-9): (0.8-4.0), an epoxy acrylic copolymer film-forming agent, a modified acrylic ester film-forming agent, an epoxy emulsion film-forming agent and a styrene-acrylic emulsion film-forming agent.
More preferably, the impregnating compound consists of the following raw materials in percentage by weight, calculated by 100% by weight:
12-18 parts of epoxy acrylic copolymer film forming agent,
5-9 parts of modified acrylic ester film forming agent,
3-9 parts of an epoxy emulsion film forming agent,
0.8 to 4.0 percent of styrene-acrylic emulsion film forming agent,
0.04 to 0.8 percent of glacial acetic acid,
0.4 to 1.8 portions of silane coupling agent,
0.2 to 0.8 percent of organic curing agent,
0.06 to 1.8 percent of lubricant,
deionized water 55.52-78.50.
More preferably, the film forming agent comprises the following components in percentage by mass (14-17): (6-7.5): (5-8): (1.0-3.0), an epoxy acrylic copolymer film-forming agent, a modified acrylic ester film-forming agent, an epoxy emulsion film-forming agent and a styrene-acrylic emulsion film-forming agent.
More preferably, the impregnating compound consists of the following raw materials in percentage by weight, calculated by 100% by weight:
14-17 parts of epoxy acrylic copolymer film forming agent,
6 to 7.5 percent of modified acrylic ester film forming agent,
5-8 parts of an epoxy emulsion film forming agent,
1.0 to 3.0 percent of styrene-acrylic emulsion film forming agent,
0.06 to 0.7 percent of glacial acetic acid,
0.6 to 1.6 portions of silane coupling agent,
0.4 to 0.7 percent of organic curing agent,
0.08 to 1.6 percent of lubricant,
60.53-72.86 by deionized water.
Preferably, the organic curing agent is an amine curing agent or an anhydride curing agent.
Preferably, the amine curing agent is dicyandiamide or amidoamine.
Preferably, the lubricant is one or more of an amide-based lubricant, an imidazoline-based lubricant, or a silicone-based lubricant.
The alkali-resistant glass fiber impregnating compound for replacing steel fibers can be prepared by the following method:
(1) Taking deionized water with the mass 5-10 times of that of the lubricant, heating to 60-80 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 5-10 times of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 80-100rpm, controlling the adding time to be within 20-30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding the total amount minus the deionized water remained after the use of the steps (1), (2) and (3), and stirring for 10-20min at a rotation speed of 60 rpm.
The alkali-resistant glass fiber impregnating compound for replacing steel fibers can be used by the following method: alkali-resistant glass flows out of holes at the bottom of a platinum floor after being melted by a kiln, is formed into fibers after being drawn by a cooling and wire drawing machine, a rotary oiling device is arranged between a floor nozzle and the wire drawing machine, the oiling device is used for applying the sizing agent to monofilament fibers and then is wound on a wire winding tube, and the wire winding tube is continuously cut and dried once under the hot air condition of 200 ℃ after being withdrawn from a machine head.
The invention has the advantages that:
(1) The alkali-resistant glass fiber impregnating compound disclosed by the invention is suitable for chopped fibers with the thickness of 3-50 mm, and the produced alkali-resistant chopped glass fibers have good alkali resistance, water resistance, high-speed shearing resistance and wear resistance, have the rigidity and stiffness of steel fibers, can still maintain the original form after being sheared by high-speed stirring friction, are uniformly dispersed, are free from fiber breakage and agglomeration, and are free from hairiness;
(2) The alkali-resistant glass fiber is produced by adopting the sizing agent, so that the off-line continuous wet-process chopping and drying is realized, the defect that the sizing agent in the prior art can only be dried first and then chopped when the sizing agent is used for producing the glass fiber is overcome, and the production efficiency is improved;
(3) The alkali-resistant glass fiber produced can replace steel fiber to be applied to reinforced cement concrete, and can greatly reduce materialsThe cost is 40kg-80kg/m of steel fiber for cement concrete 3 The addition amount of the alkali-resistant chopped glass fiber is only 4kg-5kg/m 3 The surface of the steel fiber is easy to be corroded to generate rust spots, the appearance is affected, and the alkali-resistant chopped glass fiber produced by using the impregnating compound can solve the problems.
Detailed Description
The raw materials adopted in the embodiment of the invention are specifically as follows:
an epoxy acrylic copolymer film forming agent (YG 3040, shaanxi Huiyou based New Material Co., ltd.) is an emulsion film forming agent formed by the reaction of epoxy resin and acrylic ester in the presence of an initiator;
modified acrylic ester film forming agent (YG 1250H, shaanxi Huiyou New Material Co., ltd.) and organosilane modified acrylic ester film forming agent;
epoxy emulsion film forming agent (YG 1248D-2) is polysiloxane grafted high polymer film forming agent;
styrene-acrylic emulsion film forming agent (YG 2019, shaanxi Huiyou New Material Co., ltd.) is film forming agent produced by emulsion copolymerization of styrene and acrylic ester;
silane coupling agents (GE Silicones, U.S.A., A-174);
and (3) a lubricant: (Shaanxi Huiyou New Material Co., ltd., F3760, an amide type lubricant);
organic curing agent: dicyandiamide is used.
Example 1
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 17,
4.5 parts of modified acrylic ester film forming agent,
an epoxy emulsion film-forming agent 5,
0.5 percent of styrene-acrylic emulsion film forming agent,
the content of glacial acetic acid is 0.02,
0.2 part of a silane coupling agent,
0.1 part of organic curing agent,
the lubricant was used in an amount of 0.05,
deionized water 72.63.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 80rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 20min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber, 400 strands of alkali-resistant fibers with the single fiber diameter of 16-18 um are used for soaking at the speed of 60m/min, the soaked fibers are continuously chopped and dried, the drying temperature is 200 ℃ hot air, and the chopped fibers have the length of: 12mm, 18mm, 24mm, 30mm, 36mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 2
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 12,
the modified acrylic acid ester film forming agent 9,
an epoxy emulsion film-forming agent 6,
1.0 percent of styrene-acrylic emulsion film forming agent,
0.6 part of glacial acetic acid,
0.4 part of a silane coupling agent,
0.4 part of organic curing agent,
the lubricant is 0.15 percent of the total weight of the composition,
deionized water 70.45.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 80rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 20min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 12mm, 18mm, 24mm, 30mm, 36mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 3
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 16,
a modified acrylic ester film-forming agent 8,
an epoxy emulsion film-forming agent 8,
1.5 parts of styrene-acrylic emulsion film forming agent,
0.4 part of glacial acetic acid,
0.8 part of a silane coupling agent,
0.6 part of organic curing agent,
the lubricant is 0.6 part of the total weight of the product,
deionized water 64.1.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 80rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 20min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 18mm, 24mm, 30mm, 36mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 4
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 10,
the modified acrylic acid ester film former 10,
the film-forming agent of the epoxy emulsion 10,
2.5 parts of styrene-acrylic emulsion film forming agent,
0.3 part of glacial acetic acid,
1.2 parts of a silane coupling agent,
0.2 part of organic curing agent,
the lubricant was added at an amount of 0.08,
deionized water 65.72.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 80rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 20min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 24mm, 18mm, 30mm, 36mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 5
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 14,
a modified acrylic acid ester film-forming agent 6,
an epoxy emulsion film-forming agent 5,
the film-forming agent of the styrene-acrylic emulsion 2,
0.5 part of glacial acetic acid,
1.4 parts of a silane coupling agent,
0.8 part of organic curing agent,
the lubricant is 0.8 part of the total weight of the product,
69.5 parts of deionized water.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 80rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 20min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 18mm, 24mm, 30mm, 36mm, 42mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 6
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 18,
a film-forming agent 5 of modified acrylic ester,
an epoxy emulsion film-forming agent 4,
3.0 parts of styrene-acrylic emulsion film forming agent,
0.7 part of glacial acetic acid,
1.6 parts of a silane coupling agent,
0.9 part of organic curing agent,
1.6 parts of a lubricant, which is composed of a base material,
deionized water 65.2.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 80rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 20min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 18mm, 24mm, 30mm, 36mm, 42mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 7
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 19,
a film-forming agent 7 of modified acrylic ester,
an epoxy emulsion film-forming agent 3,
4.0 parts of styrene-acrylic emulsion film forming agent,
0.1 part of glacial acetic acid,
1.8 parts of a silane coupling agent,
1.0 part of organic curing agent,
1.8 parts of a lubricant, wherein the lubricant,
deionized water 62.3.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 100rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 10min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 18mm, 30mm, 36mm, 42mm, 48mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 8
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 20,
a film-forming agent 4 of modified acrylic ester,
an epoxy emulsion film-forming agent 2,
5.0 parts of styrene-acrylic emulsion film forming agent,
the content of glacial acetic acid is 0.08,
2.0 parts of a silane coupling agent,
0.3 part of organic curing agent,
the lubricant was used in the formulation of 2.0,
deionized water 64.62.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 100rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 10min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the alkali-resistant fiber, 400 strands of filaments and 16-18 um of single fiber diameterThe fiber is soaked at the speed of 60m/min, short-cut into fibers with fixed length by a short cutter after soaking, and then dried by hot air at 200 ℃, wherein the length of the short-cut fibers is as follows: 18mm, 30mm, 36mm, 42mm, 48mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 9
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 14,
7.5 parts of modified acrylic ester film forming agent,
an epoxy emulsion film-forming agent 7,
1.5 parts of styrene-acrylic emulsion film forming agent,
the amount of glacial acetic acid is 0.07,
0.8 part of a silane coupling agent,
0.7 part of organic curing agent,
0.3 part of the lubricant, which is used for the oil,
deionized water 68.13.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 100rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 10min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 18mm, 330mm, 36mm, 42mm, 48mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Example 10
1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which comprises the following raw materials in percentage by weight as per 100 percent by weight:
an epoxy acrylic copolymer film former 15,
6.5 parts of modified acrylic ester film forming agent,
6.5 parts of an epoxy emulsion film forming agent,
3.0 parts of styrene-acrylic emulsion film forming agent,
0.2 part of glacial acetic acid,
1.2 parts of a silane coupling agent,
0.5 part of organic curing agent,
0.5 part of the lubricant, which is used for the oil,
66.6 parts of deionized water.
2. The preparation method of the alkali-resistant glass fiber impregnating compound for replacing steel fibers comprises the following steps:
(1) Taking deionized water with the mass 10 times of that of the lubricant, heating to 60 ℃, and adding the lubricant into the deionized water to obtain diluted lubricant;
(2) Taking deionized water with the mass 10 times of that of the curing agent, and adding an organic curing agent into the deionized water to obtain a diluted curing agent;
(3) Weighing 30% of the total deionized water, adding glacial acetic acid, and stirring uniformly;
(4) Slowly adding a silane coupling agent into the system in the step (3) at the room temperature and the rotating speed of 100rpm, controlling the adding time to be within 30min, and stirring until the solution is transparent without oil beads;
(5) Adding diluted lubricant;
(6) Sequentially adding an epoxy acrylic copolymer film forming agent, a modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent;
(7) Adding diluted curing agent, and stirring for 30min at a rotating speed of 60 rpm;
(8) Adding total amount minus deionized water remained after the use of the steps (1), (2) and (3), and stirring at 60rpm for 10min.
3. The prepared alkali-resistant glass fiber impregnating compound replacing steel fibers is applied to ZrO-containing materials 2 16.5wt% of the fiber is 400, the fiber is alkali-resistant fiber with the diameter of 16um-18um, the fiber is soaked at the speed of 60m/min, the soaked fiber is chopped into fiber with fixed length by a chopping machine, and then the fiber is dried by hot air at 200 ℃, wherein the chopped fiber has the length of: 18mm, 30mm, 36mm, 42mm, 48mm. The parameters of the alkali-resistant chopped glass fibers obtained with 36mm are shown in Table 1.
Comparative example 1
Steel fibers with a diameter of 0.54mm.
Comparative example 2
The conventional alkali-resistant glass fiber chopped strand impregnating compound adopts the impregnating compound in the example 1 in Chinese patent CN 103466963A.
TABLE 1 Performance parameters
Remarks:
(1) The strong retention rate of 5% NaOH solution in the table after soaking for 6 hours at 80 ℃ is more than or equal to 75% of the national standard;
(2) Comparative example 2 the traditional alkali-resistant glass fiber chopped strand sizing agent in the prior art needs to adopt the traditional drying and then chopping process, if the wet continuous chopping process is adopted in the invention, the adhesion rate is more than 50%;
(3) The compressive strength and the flexural strength in the table are those of reinforced concrete C30 and 28 days after curing.
(4) Fiber-free concrete mix (kg/m) 3 ) See table 2.
TABLE 2 composition ratio of fiber-free concrete
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Claims (8)

1. An alkali-resistant glass fiber impregnating compound for replacing steel fibers, which consists of a film forming agent, a silane coupling agent, an organic curing agent, a lubricant, glacial acetic acid and deionized water, and is characterized in that: the sizing agent consists of the following raw materials in percentage by weight according to the weight ratio of 100 percent:
10 to 20 portions of epoxy acrylic copolymer film forming agent,
4-10 parts of organosilane modified acrylic ester film forming agent,
2-10 parts of an epoxy emulsion film forming agent,
0.5 to 5 percent of styrene-acrylic emulsion film forming agent,
0.02 to 1.0 percent of glacial acetic acid,
silane coupling agent 0.2-2.0,
0.1 to 1.0 percent of organic curing agent,
0.05 to 2.0 percent of lubricant,
49.5 to 83.13 portions of deionized water.
2. The alkali-resistant glass fiber sizing agent for replacing steel fibers according to claim 1, wherein: the film forming agent comprises the following components in percentage by mass (12-18): (5-9): (3-9): (0.8-4.0), an epoxy acrylic copolymer film forming agent, an organosilane modified acrylic ester film forming agent, an epoxy emulsion film forming agent and a styrene-acrylic emulsion film forming agent.
3. The alkali-resistant glass fiber sizing agent for replacing steel fibers according to claim 2, wherein: the sizing agent consists of the following raw materials in percentage by weight according to the weight ratio of 100 percent:
12-18 parts of epoxy acrylic copolymer film forming agent,
5-9 parts of organosilane modified acrylic ester film forming agent,
3-9 parts of an epoxy emulsion film forming agent,
0.8 to 4.0 percent of styrene-acrylic emulsion film forming agent,
0.04 to 0.8 percent of glacial acetic acid,
0.4 to 1.8 portions of silane coupling agent,
0.2 to 0.8 percent of organic curing agent,
0.06 to 1.8 percent of lubricant,
deionized water 55.52-78.50.
4. The alkali-resistant glass fiber sizing agent for replacing steel fibers according to claim 2, wherein: the film forming agent comprises the following components in percentage by mass (14-17): (6-7.5): (5-8): (1.0-3.0), an epoxy acrylic copolymer film-forming agent, an organosilane modified acrylic ester film-forming agent, an epoxy emulsion film-forming agent and a styrene-acrylic emulsion film-forming agent.
5. The alkali-resistant glass fiber sizing agent for replacing steel fibers according to claim 4, wherein: the sizing agent consists of the following raw materials in percentage by weight according to the weight ratio of 100 percent:
14-17 parts of epoxy acrylic copolymer film forming agent,
6 to 7.5 portions of organosilane modified acrylic ester film forming agent,
5-8 parts of an epoxy emulsion film forming agent,
1.0 to 3.0 percent of styrene-acrylic emulsion film forming agent,
0.06 to 0.7 percent of glacial acetic acid,
0.6 to 1.6 portions of silane coupling agent,
0.4 to 0.7 percent of organic curing agent,
0.08 to 1.6 percent of lubricant,
60.53-72.86 by deionized water.
6. An alkali-resistant glass fiber sizing agent for replacing steel fibers according to any one of claims 1 to 5, wherein: the organic curing agent is an amine curing agent or an anhydride curing agent.
7. The alkali-resistant glass fiber sizing agent for replacing steel fibers according to claim 6, wherein: the amine curing agent is dicyandiamide or amidoamine.
8. An alkali-resistant glass fiber sizing agent for replacing steel fibers according to any one of claims 1 to 5, wherein: the lubricant is one or more of amide lubricants, imidazoline lubricants or organosilicon lubricants.
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JPH08319139A (en) * 1995-05-25 1996-12-03 Dainippon Ink & Chem Inc Ultraviolet ray-curing type composition for optical fiber covering
JP2001226150A (en) * 1999-12-09 2001-08-21 Dainippon Ink & Chem Inc Resin composition for coating optical fiber and optical fiber or its unit
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CN103435271A (en) * 2013-09-10 2013-12-11 西安友基复合材料有限公司 Preparation method of alkali-proof chopped glass fiber impregnating compound
CN103466963A (en) * 2013-09-10 2013-12-25 西安友基复合材料有限公司 Alkali-resistant chopped glass fiber soakage agent
CN109502995A (en) * 2018-12-13 2019-03-22 巨石集团有限公司 A kind of glass fiber infiltration agent and its application
CN114735947A (en) * 2022-02-25 2022-07-12 陕西汇友友基新材料有限公司 Preparation method of alkali-resistant glass fiber impregnating compound for replacing steel fiber

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01308414A (en) * 1988-06-07 1989-12-13 Nippon Kayaku Co Ltd Resin composition and coating agent for optical fiber
JPH08319139A (en) * 1995-05-25 1996-12-03 Dainippon Ink & Chem Inc Ultraviolet ray-curing type composition for optical fiber covering
JP2001226150A (en) * 1999-12-09 2001-08-21 Dainippon Ink & Chem Inc Resin composition for coating optical fiber and optical fiber or its unit
JP2004091763A (en) * 2002-07-08 2004-03-25 Nippon Shokubai Co Ltd Film-forming agent and film
CN102510843A (en) * 2009-08-06 2012-06-20 Ocv智识资本有限责任公司 Soft, flexible nonwoven chopped strand mat for use in pultrusion processes
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CN103466963A (en) * 2013-09-10 2013-12-25 西安友基复合材料有限公司 Alkali-resistant chopped glass fiber soakage agent
CN109502995A (en) * 2018-12-13 2019-03-22 巨石集团有限公司 A kind of glass fiber infiltration agent and its application
CN114735947A (en) * 2022-02-25 2022-07-12 陕西汇友友基新材料有限公司 Preparation method of alkali-resistant glass fiber impregnating compound for replacing steel fiber

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