CN117776555B - Reinforced PA glass fiber sizing agent for GMT and preparation method and application thereof - Google Patents
Reinforced PA glass fiber sizing agent for GMT and preparation method and application thereof Download PDFInfo
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- CN117776555B CN117776555B CN202311476875.4A CN202311476875A CN117776555B CN 117776555 B CN117776555 B CN 117776555B CN 202311476875 A CN202311476875 A CN 202311476875A CN 117776555 B CN117776555 B CN 117776555B
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 99
- 239000003365 glass fiber Substances 0.000 title claims abstract description 72
- 238000004513 sizing Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000008367 deionised water Substances 0.000 claims abstract description 83
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 83
- 150000001875 compounds Chemical class 0.000 claims abstract description 53
- 239000000314 lubricant Substances 0.000 claims abstract description 52
- 239000000839 emulsion Substances 0.000 claims abstract description 44
- 239000007822 coupling agent Substances 0.000 claims abstract description 40
- 239000002216 antistatic agent Substances 0.000 claims abstract description 39
- 239000004593 Epoxy Substances 0.000 claims abstract description 23
- 239000004814 polyurethane Substances 0.000 claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 9
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 9
- 125000000129 anionic group Chemical group 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 45
- 238000007865 diluting Methods 0.000 claims description 30
- 239000007787 solid Substances 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 150000003242 quaternary ammonium salts Chemical group 0.000 claims description 5
- 229920005989 resin Polymers 0.000 abstract description 11
- 239000011347 resin Substances 0.000 abstract description 11
- 229920006122 polyamide resin Polymers 0.000 abstract description 5
- 239000004952 Polyamide Substances 0.000 description 42
- 229920002647 polyamide Polymers 0.000 description 42
- 239000002131 composite material Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 238000007796 conventional method Methods 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000010117 shenhua Substances 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 206010020112 Hirsutism Diseases 0.000 description 1
- 150000003863 ammonium salts Chemical group 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000007524 organic acids Chemical group 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Landscapes
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention belongs to the technical field of impregnating compounds, and particularly relates to a reinforced PA glass fiber impregnating compound for GMT, and a preparation method and application thereof. The reinforced PA glass fiber sizing agent for the GMT consists of a coupling agent, a lubricant, a film forming agent A, a film forming agent B, an antistatic agent and deionized water, wherein the lubricant is polyvinylpyrrolidone, the film forming agent A is polyurethane emulsion, and the film forming agent B is epoxy emulsion. The sizing agent system of the invention uses an aminosilane coupling agent to ensure interface bonding performance, uses a polyvinylpyrrolidone lubricant to have lubricity and enhance bonding with resin, and uses an anionic aqueous polyurethane emulsion and a low molecular weight epoxy emulsion as a film forming agent to enhance polyamide resin and have GMT manufacturability.
Description
Technical Field
The invention belongs to the technical field of impregnating compounds, and particularly relates to a reinforced PA glass fiber impregnating compound for GMT, and a preparation method and application thereof.
Background
The Polyamide (PA) has good comprehensive properties including mechanical properties, wear resistance, heat resistance, self-lubricating property and the like, is easy to process, is an important engineering plastic, and glass fiber is used as an important material for reinforcing the PA, and mainly comprises two forms of long glass fiber and short glass fiber, wherein the reinforcing process mainly comprises double-screw extrusion and injection molding. GMT is a prepreg of glass fiber thermoplastics, and currently, there is little research on glass fiber sizing agents for GMT for reinforcing PA.
Chinese patent CN 105152550A discloses a sizing agent for high-general alkali-free glass fiber direct yarns, which is prepared from a coupling agent, a lubricant A, a lubricant B, a film forming agent A, a film forming agent B, a film forming agent C, a surfactant, a pH value regulator and deionized water, wherein the pH value is 3-9, the coupling agent is a silane coupling agent, the lubricant A is a cationic lubricant, the lubricant B is a nonionic lubricant, the film forming agent A is a nonionic aqueous polyurethane emulsion, the film forming agent B is an aqueous polyester resin emulsion, the film forming agent C is an aqueous epoxy resin emulsion, the pH value regulator is a mixture of acetic acid, citric acid and boric acid, the solid mass of the sizing agent accounts for 4-10% of the total mass of the sizing agent, and the balance is water. The impregnating compound disclosed in the patent uses aqueous polyester resin emulsion and aqueous epoxy resin emulsion as film forming agents to mainly strengthen thermosetting resins such as unsaturated polyester resin, epoxy resin and the like, and has poor bonding property to PA resin and low mechanical property.
The Chinese patent CN 112521028A discloses a glass fiber sizing agent for a glass fiber reinforced plastic pipeline and a preparation method and a device thereof, wherein the sizing agent comprises 5-13% of a coupling agent, 15-30% of a lubricant A, 0.5-3.0% of a lubricant B, 49-72% of a film forming agent, 1-8% of an antistatic agent and 1-5% of a pH regulator, the solid mass of the sizing agent accounts for 3.5-7.5% of the total mass of the sizing agent, the balance is water, the coupling agent is an enhanced silane coupling agent, the lubricant is a mixture of the lubricant A and the lubricant B, the lubricant A is a polyoxyethylene ether lubricant, the lubricant B is a quaternary ammonium salt lubricant, the film forming agent is an epoxy emulsion mixture of the film forming agent A and the film forming agent B in two different types, the antistatic agent is an ammonium salt antistatic agent, and the pH regulator is an organic acid. The impregnating compound in the patent can be used for reinforcing the epoxy resin by using bisphenol A type epoxy resin and phenolic aldehyde modified epoxy resin as film forming agents, but has poor compatibility for reinforcing the PA resin.
In order to meet the requirements of the GMT production process and for reinforcing the PA resin, a glass fiber impregnating compound needs to be developed, so that the produced glass fiber has good combination with PA and meets the requirements of the GMT production process.
Disclosure of Invention
The invention aims to provide a reinforced PA glass fiber impregnating compound for GMT, and glass fiber products produced by the impregnating compound have good combination with PA and meet the requirements of GMT production technology.
The invention relates to a reinforced PA glass fiber impregnating compound for GMT, which consists of a coupling agent, a lubricant, a film forming agent A, a film forming agent B, an antistatic agent and deionized water, wherein the lubricant is polyvinylpyrrolidone, the film forming agent A is polyurethane emulsion, and the film forming agent B is epoxy emulsion.
The polyurethane emulsion is anionic aqueous polyurethane emulsion.
The epoxy emulsion is low molecular weight epoxy emulsion, and the molecular weight of the low molecular weight epoxy emulsion is 480-580.
The coupling agent is an aminosilane coupling agent.
The antistatic agent is quaternary ammonium salt antistatic agent.
The mass of the solid in the impregnating compound is 3-5% of the total mass of the impregnating compound.
The solid mass of each component in the impregnating compound is as follows:
0.1 to 10 percent of coupling agent
1-10% Of lubricant
50-85% Of film forming agent A
10-40% Of film forming agent B
0.1-5% Of antistatic agent.
The solid mass of each component in the impregnating compound is preferably as follows:
0.1 to 9 percent of coupling agent
1-9% Of lubricant
50-80% Of film forming agent A
Film forming agent B10-35%
0.1-4% Of antistatic agent.
The solid mass of each component in the impregnating compound is more preferably as follows:
0.2 to 9 percent of coupling agent
1-8% Of lubricant
Film forming agent A60-75%
Film forming agent B12-30%
0.2 To 3.5 percent of antistatic agent.
The solid mass of each component in the impregnating compound is more preferably as follows:
0.2 to 8 percent of coupling agent
Lubricant 2-7%
Film forming agent A62-72%
Film forming agent B13-25%
0.2-3% Of antistatic agent.
The mass ratio of the film forming agent A to the film forming agent B is 1.25-8.5:1, wherein the film forming agent A accounts for the mass of solid in the film forming agent A, and the film forming agent B accounts for the mass of solid in the film forming agent B.
The preparation method of the enhanced PA glass fiber sizing agent for GMT comprises the following steps:
(1) Adding a coupling agent into deionized water, and stirring;
(2) Diluting the lubricant with deionized water, and then adding and stirring;
(3) Diluting the film forming agent A with deionized water, and adding and stirring;
(4) Diluting the film forming agent B with deionized water, and adding and stirring;
(5) Diluting the antistatic agent with deionized water, and adding and stirring;
(6) Adding the rest deionized water to obtain the enhanced PA glass fiber impregnating compound for GMT.
The addition amount of deionized water in the step (1) is 30-40% of the total mass of the enhanced PA glass fiber impregnating compound for GMT.
The stirring time in the step (1) is 15-20min.
The mass of the deionized water in the step (2) is 3-5 times of that of the lubricant.
The mass of deionized water in the step (3) is 2-3 times of that of the film forming agent A.
The mass of deionized water in the step (4) is 2-3 times of that of the film forming agent B.
The mass of the deionized water in the step (5) is 2-3 times of that of the antistatic agent.
The application of the reinforcing PA glass fiber sizing agent for the GMT is that the reinforcing PA glass fiber sizing agent for the GMT is used for producing the reinforcing PA glass fiber for the GMT.
The amino silane coupling agent of the invention is selected from A-1100, A-1128, A-1387 and the like of the American Michaelis diagram. The coupling agent can link the glass fiber and the matrix resin, and can better improve the combination property of the glass fiber and the resin. The selection of a suitable coupling agent can meet the requirements of enhancing the performance of the polyamide and the production manufacturability of the GMT.
The addition of the conventional lubricant can influence the combination of the glass fiber and the resin, but the selected polyvinylpyrrolidone lubricant has better affinity, can be combined with polyamide resin, and is beneficial to enhancing the interface combination property of the composite material.
The film forming agent A is anionic aqueous polyurethane emulsion, has excellent compatibility with polyamide resin, ensures the mechanical property of the composite material, and the film forming agent B is low molecular weight epoxy emulsion with the molecular weight of 480-580. The use of the anionic aqueous polyurethane emulsion can provide a good reaction carrier for glass fibers and simultaneously ensure that yarn bundles obtain good bundling property, and the use of the low molecular weight epoxy emulsion introduces epoxy groups into a polyurethane system, so that the composite material has higher strength and toughness, and can reduce the hardness of the yarn bundles and improve manufacturability. Therefore, the anionic aqueous polyurethane emulsion and the low molecular weight epoxy emulsion are adopted to be matched for use, so that the polyamide resin can be enhanced, and the GMT manufacturability is achieved. The positively charged and anionic aqueous polyurethane emulsion in the polyvinylpyrrolidone has adsorptivity, and simultaneously, the combination of the polyvinylpyrrolidone and the low molecular weight epoxy emulsion can increase the compatibility of the low molecular weight epoxy emulsion and the emulsion system, and the combination of the polyvinylpyrrolidone, the low molecular weight epoxy emulsion and the emulsion system increases the emulsion stability.
The antistatic agent is quaternary ammonium salt antistatic agent, and the addition of the antistatic agent ensures that glass fibers are dispersed and settled in the GMT process.
The beneficial effects of the invention are as follows:
Compared with the prior art, the sizing agent system of the invention uses the aminosilane coupling agent to ensure the interface bonding performance, uses the polyvinylpyrrolidone lubricant to have lubricity and enhance the bonding property with resin, and uses the anionic aqueous polyurethane emulsion and the low molecular weight epoxy emulsion as the film forming agent to enhance the polyamide resin and have GMT manufacturability.
According to the invention, through selection of raw materials and optimization of the proportion of formula components, a proper mature glass fiber production process is adopted, and the obtained glass fiber is suitable for reinforcing PA resin and meets the GMT production process. The glass fiber yarn bundle produced by the sizing agent has good banding property, no loop and knot detachment in the use process, no obvious drawing after short cutting, and meets the production of GMT technology.
Detailed Description
The invention is further described below with reference to examples.
Example 1
The content of each component of the reinforced PA glass fiber impregnating compound for GMT is shown in table 1, the solid mass in the impregnating compound accounts for 3% of the total mass of the impregnating compound, and the balance is deionized water.
The coupling agent is an aminosilane coupling agent, and the product brand is Michaemap A-1100.
The lubricant is lakezhou Shenhua K90.
The film forming agent A is Bayer Baybond ℃ and XP 2569.
The film former B is low molecular weight epoxy emulsion 296 of Taishan glass fiber Co.
The antistatic agent is Kekai 6665.
The preparation method comprises the following steps:
(1) Adding deionized water into a preparation tank until the total mass of the GMT reinforced PA glass fiber impregnating compound is 30%, starting a preparation tank stirrer, slowly adding a coupling agent, stirring for 15min, and stirring until the solution is clear and transparent and has no oil bloom;
(2) Diluting the lubricant with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the lubricant;
(3) Diluting the film forming agent A with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 2 times that of the film forming agent A;
(4) Diluting the film forming agent B with normal-temperature deionized water, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the film forming agent B;
(5) Diluting the antistatic agent with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the antistatic agent;
(6) Adding the rest deionized water to obtain the enhanced PA glass fiber impregnating compound for GMT.
The GMT reinforced PA glass fiber and composite material are prepared by adopting the GMT reinforced PA glass fiber sizing agent by a conventional method, and the detection results of the products are shown in table 1.
Example 2
The content of each component of the reinforced PA glass fiber impregnating compound for GMT is shown in table 1, the solid mass in the impregnating compound accounts for 4% of the total mass of the impregnating compound, and the balance is deionized water.
The coupling agent is an aminosilane coupling agent, and the product brand is Michaemap A-1100.
The lubricant is lakezhou Shenhua K90.
The film forming agent A is Bayer Baybond ℃ and XP 2569.
The film former B is low molecular weight epoxy emulsion 296 of Taishan glass fiber Co.
The antistatic agent is Kekai 6665.
The preparation method comprises the following steps:
(1) Adding deionized water into a preparation tank until the total mass of the GMT reinforced PA glass fiber impregnating compound is 35%, starting a preparation tank stirrer, slowly adding a coupling agent, stirring for 17min, and stirring until the solution is clear and transparent and has no oil bloom;
(2) Diluting the lubricant with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 4 times that of the lubricant;
(3) Diluting the film forming agent A with normal-temperature deionized water, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the film forming agent A;
(4) Diluting the film forming agent B with normal-temperature deionized water, adding and continuously stirring, wherein the mass of the deionized water is 2 times that of the film forming agent B;
(5) Diluting the antistatic agent with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 2 times that of the antistatic agent;
(6) Adding the rest deionized water to obtain the enhanced PA glass fiber impregnating compound for GMT.
The GMT reinforced PA glass fiber and composite material are prepared by adopting the GMT reinforced PA glass fiber sizing agent by a conventional method, and the detection results of the products are shown in table 1.
Example 3
The content of each component of the reinforced PA glass fiber impregnating compound for GMT is shown in table 1, the solid mass in the impregnating compound accounts for 5% of the total mass of the impregnating compound, and the balance is deionized water.
The coupling agent is an aminosilane coupling agent, and the product brand is Michaemap A-1100.
The lubricant is lakezhou Shenhua K90.
The film forming agent A is Bayer Baybond ℃ and XP 2569.
The film former B is low molecular weight epoxy emulsion 296 of Taishan glass fiber Co.
The antistatic agent is Kekai 6665.
The preparation method comprises the following steps:
(1) Adding deionized water into a preparation tank until the total mass of the GMT reinforced PA glass fiber impregnating compound is 40%, starting a preparation tank stirrer, slowly adding a coupling agent, stirring for 20min, and stirring until the solution is clear and transparent and has no oil bloom;
(2) Diluting the lubricant with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 5 times that of the lubricant;
(3) Diluting the film forming agent A with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 2 times that of the film forming agent A;
(4) Diluting the film forming agent B with normal-temperature deionized water, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the film forming agent B;
(5) Diluting the antistatic agent with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 2 times that of the antistatic agent;
(6) Adding the rest deionized water to obtain the enhanced PA glass fiber impregnating compound for GMT.
The GMT reinforced PA glass fiber and composite material are prepared by adopting the GMT reinforced PA glass fiber sizing agent by a conventional method, and the detection results of the products are shown in table 1.
Example 4
The content of each component of the enhanced PA glass fiber impregnating compound for GMT is shown in table 1, and the detection results of other products are shown in table 1.
Example 5
The content of each component of the enhanced PA glass fiber impregnating compound for GMT is shown in table 1, and the detection results of other products are shown in table 1.
Comparative example 1
The contents of the components of the glass fiber impregnating compound are shown in table 1, the solid mass in the impregnating compound accounts for 3% of the total mass of the impregnating compound, and the balance is deionized water.
The coupling agent is an aminosilane coupling agent, and the product brand is Michaemap A-1100.
The lubricant is lakezhou Shenhua K90.
The film forming agent A is Bayer Baybond ℃ and XP 2569.
The antistatic agent is Kekai 6665.
The preparation method comprises the following steps:
(1) Adding deionized water to 30% of the total mass of the glass fiber impregnating compound into a preparation tank, starting a preparation tank stirrer, slowly adding a coupling agent, stirring for 15min, and stirring until the solution is clear and transparent and has no oil bloom;
(2) Diluting the lubricant with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the lubricant;
(3) Diluting the film forming agent A with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 2 times that of the film forming agent A;
(4) Diluting the antistatic agent with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the antistatic agent;
(5) Adding the rest deionized water to obtain the glass fiber impregnating compound.
The glass fiber impregnating agent is adopted to prepare the reinforced PA glass fiber for GMT and the composite material by a conventional method, and the detection result of the product is shown in Table 1.
Comparative example 2
The contents of the components of the glass fiber impregnating compound are shown in table 1, the solid mass in the impregnating compound accounts for 3% of the total mass of the impregnating compound, and the balance is deionized water.
The coupling agent is an aminosilane coupling agent, and the product brand is Michaemap A-1100.
The lubricant is lakezhou Shenhua K90.
The film former B is low molecular weight epoxy emulsion 296 of Taishan glass fiber Co.
The antistatic agent is Kekai 6665.
The preparation method comprises the following steps:
(1) Adding deionized water to 30% of the total mass of the glass fiber impregnating compound into a preparation tank, starting a preparation tank stirrer, slowly adding a coupling agent, stirring for 15min, and stirring until the solution is clear and transparent and has no oil bloom;
(2) Diluting the lubricant with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the lubricant;
(3) Diluting the film forming agent B with normal-temperature deionized water, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the film forming agent B;
(4) Diluting the antistatic agent with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the antistatic agent;
(5) Adding the rest deionized water to obtain the glass fiber impregnating compound.
The glass fiber impregnating agent is adopted to prepare the reinforced PA glass fiber for GMT and the composite material by a conventional method, and the detection result of the product is shown in Table 1.
Comparative example 3
The contents of the components of the glass fiber impregnating compound are shown in table 1, the solid mass in the impregnating compound accounts for 3% of the total mass of the impregnating compound, and the balance is deionized water.
The coupling agent is an aminosilane coupling agent, and the product brand is Michaemap A-1100.
The lubricant is quaternary ammonium salt lubricant with the brand of Kekai 6760L.
The film forming agent A is Bayer Baybond ℃ and XP 2569.
The film former B is low molecular weight epoxy emulsion 296 of Taishan glass fiber Co.
The antistatic agent is Kekai 6665.
The preparation method comprises the following steps:
(1) Adding deionized water to 30% of the total mass of the glass fiber impregnating compound into a preparation tank, starting a preparation tank stirrer, slowly adding a coupling agent, stirring for 15min, and stirring until the solution is clear and transparent and has no oil bloom;
(2) Diluting the lubricant with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the lubricant;
(3) Diluting the film forming agent A with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 2 times that of the film forming agent A;
(4) Diluting the film forming agent B with normal-temperature deionized water, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the film forming agent B;
(5) Diluting the antistatic agent with deionized water at normal temperature, adding and continuously stirring, wherein the mass of the deionized water is 3 times that of the antistatic agent;
(6) Adding the rest deionized water to obtain the glass fiber impregnating compound.
The glass fiber impregnating agent is adopted to prepare the reinforced PA glass fiber for GMT and the composite material by a conventional method, and the detection result of the product is shown in Table 1.
As can be seen from Table 1, the yarn bundles of examples 1-5 have good banding, no loop and knot formation, no obvious drawing after chopping, and the manufacturability is significantly better than that of comparative examples 1-3, while the tensile strength, bending strength and impact strength of comparative examples 1-5 are better than those of comparative examples 1-3, the bondability of comparative examples 2 and 3 with PA resin is poor, the composite performance is poor, and the yarn bundle of comparative example 3 has large hairiness.
Claims (7)
1. The reinforced PA glass fiber sizing agent for the GMT is characterized by comprising a coupling agent, a lubricant, a film forming agent A, a film forming agent B, an antistatic agent and deionized water, wherein the lubricant is polyvinylpyrrolidone, the film forming agent A is polyurethane emulsion, and the film forming agent B is epoxy emulsion;
the polyurethane emulsion is anionic aqueous polyurethane emulsion;
the epoxy emulsion is low molecular weight epoxy emulsion, and the molecular weight of the low molecular weight epoxy emulsion is 480-580;
the solid mass of each component in the impregnating compound is as follows:
0.1 to 10 percent of coupling agent
1-10% Of lubricant
50-85% Of film forming agent A
10-40% Of film forming agent B
0.1-5% Of antistatic agent.
2. The GMT reinforcing PA glass fiber sizing agent according to claim 1, wherein the coupling agent is an aminosilane-based coupling agent.
3. The GMT reinforcing PA glass fiber sizing according to claim 1, wherein the antistatic agent is a quaternary ammonium salt type antistatic agent.
4. The reinforced PA glass fiber sizing for GMT according to claim 1, wherein the mass of solids in the sizing is 3-5% of the total mass of the sizing.
5. The reinforced PA glass fiber sizing for GMT according to claim 1, wherein the mass ratio of film former a to film former B is 1.25-8.5:1, wherein film former a is the mass of solids in film former a and film former B is the mass of solids in film former B.
6. A method for preparing the reinforced PA glass fiber sizing for GMT according to any one of claims 1 to 5, comprising the steps of:
(1) Adding a coupling agent into deionized water, and stirring;
(2) Diluting the lubricant with deionized water, and then adding and stirring;
(3) Diluting the film forming agent A with deionized water, and adding and stirring;
(4) Diluting the film forming agent B with deionized water, and adding and stirring;
(5) Diluting the antistatic agent with deionized water, and adding and stirring;
(6) Adding the rest deionized water to obtain the enhanced PA glass fiber impregnating compound for GMT.
7. Use of a reinforcing PA glass fiber sizing for GMT according to any one of claims 1 to 5 for the production of a reinforcing PA glass fiber for GMT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311476875.4A CN117776555B (en) | 2023-11-08 | 2023-11-08 | Reinforced PA glass fiber sizing agent for GMT and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311476875.4A CN117776555B (en) | 2023-11-08 | 2023-11-08 | Reinforced PA glass fiber sizing agent for GMT and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117776555A CN117776555A (en) | 2024-03-29 |
| CN117776555B true CN117776555B (en) | 2025-01-21 |
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| CN108249783A (en) * | 2018-02-12 | 2018-07-06 | 巨石集团有限公司 | A kind of transparent felt glass fiber treating compound and its preparation method and application |
| CN108863109A (en) * | 2017-05-12 | 2018-11-23 | 巨石集团有限公司 | A kind of glass fiber infiltration agent and its application in the preparation direct yarn of continuous fiber reinforcement polyamide alkali-free |
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| US5712036A (en) * | 1996-05-08 | 1998-01-27 | N.V. Owens-Corning S.A. | High solubility size compositon for fibers |
| DE19818046B4 (en) * | 1998-04-22 | 2004-07-08 | Johns Manville Europe Gmbh | Sizing and use of the sizing |
| KR20070022324A (en) * | 2004-06-18 | 2007-02-26 | 오웬스 코닝 | Epoxy protective composition for filament winding |
| US8129018B2 (en) * | 2004-06-18 | 2012-03-06 | Ocv Intellectual Capital, Llc | Sizing for high performance glass fibers and composite materials incorporating same |
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| CN108863109A (en) * | 2017-05-12 | 2018-11-23 | 巨石集团有限公司 | A kind of glass fiber infiltration agent and its application in the preparation direct yarn of continuous fiber reinforcement polyamide alkali-free |
| CN108249783A (en) * | 2018-02-12 | 2018-07-06 | 巨石集团有限公司 | A kind of transparent felt glass fiber treating compound and its preparation method and application |
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