CN111004451A - High-strength high-heat-resistance polypropylene glass fiber reinforced belt and preparation method thereof - Google Patents
High-strength high-heat-resistance polypropylene glass fiber reinforced belt and preparation method thereof Download PDFInfo
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- CN111004451A CN111004451A CN201911381559.2A CN201911381559A CN111004451A CN 111004451 A CN111004451 A CN 111004451A CN 201911381559 A CN201911381559 A CN 201911381559A CN 111004451 A CN111004451 A CN 111004451A
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- polypropylene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2445/00—Characterised by the use of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
Abstract
The invention relates to a high-strength high-heat-resistance polypropylene glass fiber reinforced belt and a preparation method thereof, wherein the polypropylene glass fiber reinforced belt comprises the following components in parts by weight: 14-25 parts of polypropylene, 53-72 parts of quartz fiber, 6-10 parts of magnesium hydroxide powder, 2-10 parts of compatilizer, and 1-10 parts of terpene resin; wherein the filament diameter of the quartz fiber is 15-25 μm, the softening point is 550-630 ℃, and the density is 2.35-2.72g/cm 3. The high-strength high-heat-resistance polypropylene glass fiber reinforced belt has higher strength and high heat resistance under the compounding action of quartz fiber, compatilizer, magnesium hydroxide powder and terpene resin; used for reinforcing polypropylene materials, and solves the problems of low strength and poor heat resistance of the polypropylene materials. In addition, the preparation method of the high-strength high-heat-resistance polypropylene glass fiber reinforced belt has the advantages of simple preparation process, easily obtained raw materials and equipment and capability of large-scale production.
Description
Technical Field
The invention relates to the technical field of manufacturing of polypropylene composite materials, in particular to a high-strength high-heat-resistance polypropylene glass fiber reinforced belt and a preparation method thereof.
Background
The polymer type polypropylene material has lower heat distortion temperature (100 ℃), low transparency, low gloss and low rigidity, and the impact strength of the polymer type polypropylene material is increased along with the increase of the ethylene content, and the strength is reduced along with the increase of the ethylene content. The Vicat softening temperature of the polymer type polypropylene material is 150 ℃, and the Vicat softening temperature is higher, so that the material has better dimensional stability when being heated, the smaller the thermal deformation is, and the better the thermal deformation resistance is. In addition, the polymer type polypropylene material has high crystallinity, so that the material has strong surface rigidity and good scratch resistance. The polypropylene material is widely used in pharmaceutical industry, chemical industry, petroleum industry, chlor-alkali industry, pharmaceutical industry, environmental protection industry, light industry, printing and dyeing industry, food industry, metallurgy industry, water treatment industry and other industries.
In the process of preparing the pipe by using the polypropylene, the strength of the polypropylene is lower, and the softening point is lower, so that the pipe prepared by using the polypropylene material has the problem that the service life is reduced due to the low strength of the pipe in the actual use process, and the pipe needs to be replaced again, thereby causing resource waste. Therefore, how to prepare a polypropylene glass fiber reinforced belt material with high strength and excellent heat resistance for reinforcing a polypropylene pipe is a problem which needs to be solved urgently by research and development personnel.
Disclosure of Invention
The invention aims to provide a high-strength high-heat-resistance polypropylene glass fiber reinforced belt and a preparation method thereof aiming at the defects of the prior art, and solves the technical problems of low strength and poor heat resistance of polypropylene materials in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a high-strength high-heat-resistance polypropylene glass fiber reinforced belt, which comprises the following components in parts by weight:
wherein the quartz fiber has a filament diameter of 15-25 μm, a softening point of 550℃ and a density of 630 DEG C3。
Further, the high-strength high-heat-resistance polypropylene glass fiber reinforced belt comprises the following components in parts by weight:
further, the density of the magnesium hydroxide powder was 2.36g/cm3The melting point is 350 ℃.
Further, the compatilizer is maleic anhydride grafted polypropylene.
Further preferably, the density of the maleic anhydride grafted polypropylene is 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃; the melt index is 45-50g/10min at 190 deg.C and 2.16 kg.
The second aspect of the invention provides a preparation method of a high-strength high-heat-resistance polypropylene glass fiber reinforced belt, which is characterized by comprising the following steps:
(1) weighing polypropylene, magnesium hydroxide powder, a compatilizer and terpene resin according to the proportion, and then uniformly mixing the polypropylene, the magnesium hydroxide powder, the compatilizer and the terpene resin;
(2) adding the uniformly mixed raw materials into a dipping tank for heating and melting, then arranging quartz fiber filaments in a row and dipping the quartz fiber filaments in the dipping tank for 5min, and then dipping the quartz fiber ribbon completely dipped in cooling water.
Further, the temperature of the mixing in the step (1) is 40-60 ℃.
Further, the temperature for heating and melting in the dipping tank in the step (2) is 180-200 ℃, and the temperature of the cooling water is 25 ℃.
Compared with the prior art, the invention has the following advantages:
the high-strength high-heat-resistance polypropylene glass fiber reinforced belt has higher strength and high heat resistance under the compounding action of quartz fiber, compatilizer, magnesium hydroxide powder and terpene resin; used for reinforcing polypropylene materials, and solves the problems of low strength and poor heat resistance of the polypropylene materials. In addition, the preparation method of the high-strength high-heat-resistance polypropylene glass fiber reinforced belt has the advantages of simple preparation process, easily obtained raw materials and equipment and capability of large-scale production.
Detailed Description
The present invention will be described in detail and specifically with reference to the following examples to facilitate better understanding of the present invention, but the following examples do not limit the scope of the present invention.
Example 1
A high-strength high-heat-resistance polypropylene glass fiber reinforced belt comprises the following components in parts by weight:
wherein, theThe quartz fiber has a filament diameter of 15-25 μm, a softening point of 550-3；
The density of the magnesium hydroxide powder is 2.36g/cm3The melting point is 350 ℃;
the compatilizer is maleic anhydride grafted polypropylene and has the density of 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃; the melt index is 45-50g/10min at 190 deg.C and 2.16 kg.
The preparation process of high strength and high heat resistance reinforced polypropylene glass fiber belt includes the following steps:
(1) weighing polypropylene, magnesium hydroxide powder, a compatilizer and terpene resin according to the proportion, and then uniformly mixing the polypropylene, the magnesium hydroxide powder, the compatilizer and the terpene resin at the temperature of 40-60 ℃;
(2) adding the uniformly mixed raw materials into an impregnation tank for heating and melting, then arranging quartz fiber filaments in a row and immersing the quartz fiber filaments in the impregnation tank for 5min, then immersing the quartz fiber strips completely immersed in cooling water, wherein the heating and melting temperature in the impregnation tank is 180-200 ℃, and the cooling water temperature is 25 ℃.
Example 2
A high-strength high-heat-resistance polypropylene glass fiber reinforced belt comprises the following components in parts by weight:
wherein the quartz fiber has a filament diameter of 15-25 μm, a softening point of 550℃ and a density of 630 DEG C3；
The density of the magnesium hydroxide powder is 2.36g/cm3The melting point is 350 ℃;
the compatilizer is maleic anhydride grafted polypropylene and has the density of 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃; the melt index is 45-50g/10min at 190 deg.C and 2.16 kg.
The preparation process of high strength and high heat resistance reinforced polypropylene glass fiber belt includes the following steps:
(1) weighing polypropylene, magnesium hydroxide powder, a compatilizer and terpene resin according to the proportion, and then uniformly mixing the polypropylene, the magnesium hydroxide powder, the compatilizer and the terpene resin at the temperature of 40-60 ℃;
(2) adding the uniformly mixed raw materials into an impregnation tank for heating and melting, then arranging quartz fiber filaments in a row and immersing the quartz fiber filaments in the impregnation tank for 5min, then immersing the quartz fiber strips completely immersed in cooling water, wherein the heating and melting temperature in the impregnation tank is 180-200 ℃, and the cooling water temperature is 25 ℃.
Example 3
A high-strength high-heat-resistance polypropylene glass fiber reinforced belt comprises the following components in parts by weight:
wherein the quartz fiber has a filament diameter of 15-25 μm, a softening point of 550℃ and a density of 630 DEG C3；
The density of the magnesium hydroxide powder is 2.36g/cm3The melting point is 350 ℃;
the compatilizer is maleic anhydride grafted polypropylene and has the density of 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃; the melt index is 45-50g/10min at 190 deg.C and 2.16 kg.
The preparation process of high strength and high heat resistance reinforced polypropylene glass fiber belt includes the following steps:
(1) weighing polypropylene, magnesium hydroxide powder, a compatilizer and terpene resin according to the proportion, and then uniformly mixing the polypropylene, the magnesium hydroxide powder, the compatilizer and the terpene resin at the temperature of 40-60 ℃;
(2) adding the uniformly mixed raw materials into an impregnation tank for heating and melting, then arranging quartz fiber filaments in a row and immersing the quartz fiber filaments in the impregnation tank for 5min, then immersing the quartz fiber strips completely immersed in cooling water, wherein the heating and melting temperature in the impregnation tank is 180-200 ℃, and the cooling water temperature is 25 ℃.
Example 4
A high-strength high-heat-resistance polypropylene glass fiber reinforced belt comprises the following components in parts by weight:
wherein the quartz fiber has a filament diameter of 15-25 μm, a softening point of 550℃ and a density of 630 DEG C3；
The density of the magnesium hydroxide powder is 2.36g/cm3The melting point is 350 ℃;
the compatilizer is maleic anhydride grafted polypropylene and has the density of 0.865-0.875g/cm3The grafting rate is 0.8-1.5%, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃; the melt index is 45-50g/10min at 190 deg.C and 2.16 kg.
The preparation process of high strength and high heat resistance reinforced polypropylene glass fiber belt includes the following steps:
(1) weighing polypropylene, magnesium hydroxide powder, a compatilizer and terpene resin according to the proportion, and then uniformly mixing the polypropylene, the magnesium hydroxide powder, the compatilizer and the terpene resin at the temperature of 40-60 ℃;
(2) adding the uniformly mixed raw materials into an impregnation tank for heating and melting, then arranging quartz fiber filaments in a row and immersing the quartz fiber filaments in the impregnation tank for 5min, then immersing the quartz fiber strips completely immersed in cooling water, wherein the heating and melting temperature in the impregnation tank is 180-200 ℃, and the cooling water temperature is 25 ℃.
Comparative example
The high strength and high heat resistance polypropylene glass fiber reinforced tapes prepared in examples 1 to 4 and commercially available polypropylene glass fiber reinforced tapes were subjected to performance tests according to respective test standards, wherein the strength was standard GB/T1040, and the heat resistance was standard GB/T1633, and the test results are shown in Table 1.
TABLE 1
It can be seen that the strength and softening point of the polypropylene glass fiber reinforced tapes of examples 1 to 4 of the present invention are higher than those of commercially available polypropylene glass fiber reinforced tapes. The higher the strength, the better the service performance of the product made of the polypropylene glass fiber reinforced belt, and the higher the Vicat softening point, the better the heat resistance of the product. Therefore, compared with the polypropylene glass fiber reinforced belt in the market, the polypropylene glass fiber reinforced belt has higher strength and heat resistance.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. A high-strength high-heat-resistance polypropylene glass fiber reinforced belt is characterized by comprising the following components in parts by weight:
wherein the quartz fiber has a filament diameter of 15-25 μm, a softening point of 550℃ and a density of 630 DEG C3。
2. A high strength, high heat resistance polypropylene glass fiber reinforced tape as defined in claim 1 comprising the following components in parts by weight:
3. a high strength, high heat resistance polypropylene glass fiber reinforced tape according to claim 1 wherein said magnesium hydroxide powder has a density of 2.36g/cm3The melting point is 350 ℃.
4. A high strength, high heat resistant polypropylene glass fiber reinforced tape as defined by claim 1 wherein the compatibilizer is maleic anhydride grafted polypropylene.
5. The high strength, high heat resistant polypropylene glass fiber reinforced tape of claim 4 wherein the density of the maleic anhydride grafted polypropylene is 0.865 to 0.875g/cm3The grafting rate is 0.8-1.5%, the tensile strength is 25-28MPa, and the melting point is 135-140 ℃; the melt index is 45-50g/10min at 190 deg.C and 2.16 kg.
6. A method for preparing a high-strength high-heat-resistance polypropylene glass fiber reinforced tape according to any one of claims 1 to 5, which comprises the following steps:
(1) weighing polypropylene, magnesium hydroxide powder, a compatilizer and terpene resin according to the proportion, and then uniformly mixing the polypropylene, the magnesium hydroxide powder, the compatilizer and the terpene resin;
(2) adding the uniformly mixed raw materials into a dipping tank for heating and melting, then arranging quartz fiber filaments in a row and dipping the quartz fiber filaments in the dipping tank for 5min, and then dipping the quartz fiber ribbon completely dipped in cooling water.
7. The method according to claim 6, wherein the temperature of the mixing in the step (1) is 40 to 60 ℃.
8. The method according to claim 6, wherein the temperature for heating and melting in the dipping tank in the step (2) is 180-200 ℃, and the temperature of the cooling water is 25 ℃.
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| CN201911381559.2A CN111004451A (en) | 2019-12-27 | 2019-12-27 | High-strength high-heat-resistance polypropylene glass fiber reinforced belt and preparation method thereof |
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Application publication date: 20200414 |