CN109021338B - Flame-retardant wear-resistant nontoxic composite plastic track and preparation method thereof - Google Patents
Flame-retardant wear-resistant nontoxic composite plastic track and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/5399—Phosphorus bound to nitrogen
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/04—Pavings made of prefabricated single units
- E01C13/045—Pavings made of prefabricated single units the prefabricated single units consisting of or including bitumen, rubber or plastics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
The invention relates to a flame-retardant wear-resistant nontoxic composite plastic track, which comprises a primer layer, a surface adhesive layer and a functional adhesive layer, wherein the functional adhesive layer comprises rubber, a flame-retardant auxiliary agent and a wear-resistant auxiliary agent, and the flame-retardant auxiliary agent accounts for 10-15% of the rubber by mass; the wear-resistant auxiliary agent accounts for 5-10% of the rubber by mass. The preparation of the runway comprises the following steps: s1, adding the flame-retardant auxiliary agent and the wear-resistant auxiliary agent into the rubber in proportion; s2 rolling the raw material mixed uniformly in the step S1 into a surface layer as thin as possible; s3: and then covering the thin functional glue layer on the surface of the surface glue layer in the step S2, and vulcanizing and molding. The plastic track has the characteristics of no toxicity, environmental protection, high wear resistance, high flame retardance and wide application.
Description
Technical Field
The invention relates to a composite plastic track, in particular to a flame-retardant wear-resistant non-toxic composite plastic track and a preparation method thereof.
Background
The study and use of plastic racetracks began in the sixties of the last century, and the 3M company in the united states was the first to develop this technology. In 1961, the company has tentatively laid a 200 m length of horse race track with a polyurethane rubber material. Subsequently in 1963, 3M company laid the first track and field in the world with polyurethane material. Due to the unusual use effect of the plastic runway, the plastic runway gradually draws the attention of sports circles of all countries in the world. The federal german officially started producing polyurethane plastic runways before 1965. The first use of plastic racetracks in international sports events was the pantoea sports conference held in canada in 1967. From this point on, polyurethane plastic tracks have entered a period of explosive development.
The rubber company of great wall in Hebei is the earliest producer for producing plastic track in China. At the end of the seventies of the last century, great wall rubber companies began producing plastic runways. The polyurethane plastic track has good elasticity, is wear-resistant and anti-skidding, can be laid on a flat and even ground, can absorb vibration and bounce freely, and can improve the sports score of athletes during competition, namely relieve sports fatigue to a certain extent during normal training, thereby being beneficial to improving the training effect. Therefore, the plastic track is gradually developed in China. Particularly, since the new century, the national economy of China is continuously and rapidly developed, the sports industry is continuously developed and developed, the national fitness exercises are as good as the tea, and the development of the plastic track enters a brand new development period.
However, there are some problems in the use of the plastic track: (1) runway materials are toxic and harmful, and the health of teenagers is affected; (2) the fire resistance is not high, the fire disaster is easy to occur, and the safety is seriously influenced; (3) the wear-resisting effect is not good, the service life is short, and the economic benefit is influenced.
Therefore, the improvement of the flame-retardant wear-resistant nontoxic composite plastic track is a technical problem which needs to be solved urgently in the field.
Disclosure of Invention
In order to solve the technical problems of low flame-retardant efficiency, low wear-resistant efficiency and toxic component content of the plastic track in the prior art, the invention provides the following technical scheme:
the flame-retardant wear-resistant nontoxic composite plastic track comprises a bottom rubber layer, a surface rubber layer and a functional rubber layer, wherein the functional rubber layer comprises rubber, a flame-retardant auxiliary agent and a wear-resistant auxiliary agent, and the flame-retardant auxiliary agent accounts for 10-15% of the rubber by mass; the wear-resistant auxiliary agent accounts for 5-10% of the rubber by mass;
the flame-retardant auxiliary agent consists of a compound A and zinc borate, and the mass ratio of the compound A to the zinc borate in the combustion-supporting auxiliary agent is 1: 3-5; the structural formula of the compound A is as follows:
the wear-resistant auxiliary agent is modified nano calcium carbonate, and the modified nano calcium carbonate is prepared by the following method:
a certain amount of Ca (OH)2Adding a certain amount of modifier into the slurry according to the mass ratio of the generated calcium carbonate, placing the flask in an oil bath at the temperature of 80-90 ℃, heating and stirring, and introducing CO while stirring2Gas is added until the pH value of the slurry is neutral, the slurry is filtered and dried, and the modified nano calcium carbonate is obtained; the amount of the modifier is 3-5 wt% of the nano calcium carbonate; the modifier is gamma- (methacryloyloxy) propyl trimethoxy silane.
Preferably, the rubber is selected from styrene-butadiene rubber, ethylene-propylene rubber or natural rubber.
The invention also provides a preparation method of the flame-retardant wear-resistant nontoxic composite plastic track, which comprises the following steps:
s1: adding the flame-retardant auxiliary agent and the wear-resistant auxiliary agent into the rubber in proportion, and fully mixing;
s2: rolling the uniformly mixed raw materials in the step S1 into a surface layer as thin as possible, wherein the surface layer is a functional adhesive layer;
s3: and compounding the surface glue layer and the bottom glue layer, covering the thin functional glue layer in the step S2 on the surface of the surface glue layer, and vulcanizing and molding the thin functional glue layer, the surface glue layer and the bottom glue layer.
The technical scheme of the invention has the following beneficial effects:
(1) the plastic track has the advantages of easily obtained raw materials, simple preparation process and low cost, and the produced plastic track is nontoxic and harmless, meets the requirement of environmental protection, and avoids the harm of harmful substances to users.
(2) The plastic track has a very good flame retardant effect, and can ensure the safety of the plastic track. The mass ratio of the compound A to the zinc borate in the flame-retardant auxiliary agent is 1: 3-5, the flame-retardant auxiliary agent and the zinc borate can generate a synergistic compounding effect, so that the optimal flame-retardant effect is obtained, and when the mass ratio of the compound A to the zinc borate is beyond the range, the flame-retardant effect is poor and the requirement cannot be met.
(3) The plastic track has good wear-resisting effect and long service life. After the nano calcium carbonate in the wear-resistant auxiliary agent is subjected to modification treatment, the wear-resistant effect of the plastic track can be effectively improved, and when the nano calcium carbonate is selected from common unmodified nano calcium carbonate sold in the market, the wear-resistant effect is poor and the corresponding requirements cannot be met.
Drawings
Fig. 1 is an electron microscope photograph of the modified nano calcium carbonate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following examples and comparative examples.
Example 1
A flame-retardant wear-resistant nontoxic composite plastic track comprises a bottom rubber layer, a surface rubber layer and a functional rubber layer, wherein the functional rubber layer comprises rubber, a flame-retardant auxiliary agent and a wear-resistant auxiliary agent, and the flame-retardant auxiliary agent accounts for 10% of the rubber by mass; the wear-resistant auxiliary agent accounts for 5 percent of the rubber by mass.
The flame-retardant auxiliary agent consists of a compound A and zinc borate, and the mass ratio of the compound A to the zinc borate in the combustion-supporting auxiliary agent is 1: 3; the structural formula of the compound A is as follows:
the wear-resistant auxiliary agent is modified nano calcium carbonate, and the modified nano calcium carbonate is prepared by the following method:
a certain amount of Ca (OH)2Adding a certain amount of modifier into the slurry according to the mass ratio of the generated calcium carbonate, placing the flask in an oil bath at 80 ℃, heating and stirring, and introducing CO while stirring2Gas is added until the pH value of the slurry is neutral, the slurry is filtered and dried, and the modified nano calcium carbonate is obtained; the dosage of the modifier is 3 wt% of the nano calcium carbonate; the modifier is gamma- (methacryloyloxy) propyl trimethoxy silane.
The rubber is selected from styrene butadiene rubber.
The invention also provides a preparation method of the flame-retardant wear-resistant nontoxic composite plastic track, which comprises the following steps:
s1: adding the flame-retardant auxiliary agent and the wear-resistant auxiliary agent into the rubber in proportion, and fully mixing;
s2: rolling the uniformly mixed raw materials in the step S1 into a surface layer as thin as possible, wherein the surface layer is a functional adhesive layer;
s3: and compounding the surface glue layer and the bottom glue layer, covering the thin functional glue layer in the step S2 on the surface of the surface glue layer, and vulcanizing and molding the thin functional glue layer, the surface glue layer and the bottom glue layer.
Example 2
A flame-retardant wear-resistant nontoxic composite plastic track comprises a bottom rubber layer, a surface rubber layer and a functional rubber layer, wherein the functional rubber layer comprises rubber, a flame-retardant auxiliary agent and a wear-resistant auxiliary agent, and the flame-retardant auxiliary agent accounts for 13% of the rubber by mass; the wear-resistant auxiliary agent accounts for 8 percent of the mass of the rubber.
The flame-retardant auxiliary agent consists of a compound A and zinc borate, and the mass ratio of the compound A to the zinc borate in the combustion-supporting auxiliary agent is 1: 4; the structural formula of the compound A is as follows:
the wear-resistant auxiliary agent is modified nano calcium carbonate, and the modified nano calcium carbonate is prepared by the following method:
a certain amount of Ca (OH)2Adding a certain amount of modifier into the slurry according to the mass ratio of the generated calcium carbonate, placing the flask in an oil bath at 85 ℃, heating and stirring, and introducing CO while stirring2Gas is added until the pH value of the slurry is neutral, the slurry is filtered and dried, and the modified nano calcium carbonate is obtained; the dosage of the modifier is 4 wt% of the nano calcium carbonate; the modifier is gamma- (methacryloyloxy) propyl trimethoxy silane.
Preferably, the rubber is selected from ethylene propylene rubber.
The invention also provides a preparation method of the flame-retardant wear-resistant nontoxic composite plastic track, which comprises the following steps:
s1: adding the flame-retardant auxiliary agent and the wear-resistant auxiliary agent into the rubber in proportion, and fully mixing;
s2: rolling the uniformly mixed raw materials in the step S1 into a surface layer as thin as possible, wherein the surface layer is a functional adhesive layer;
s3: and compounding the surface glue layer and the bottom glue layer, covering the thin functional glue layer in the step S2 on the surface of the surface glue layer, and vulcanizing and molding the thin functional glue layer, the surface glue layer and the bottom glue layer.
Example 3
A flame-retardant wear-resistant nontoxic composite plastic track comprises a bottom rubber layer, a surface rubber layer and a functional rubber layer, wherein the functional rubber layer comprises rubber, a flame-retardant auxiliary agent and a wear-resistant auxiliary agent, and the flame-retardant auxiliary agent accounts for 15% of the rubber by mass; the wear-resistant auxiliary agent accounts for 10 percent of the rubber by mass.
The flame-retardant auxiliary agent consists of a compound A and zinc borate, and the mass ratio of the compound A to the zinc borate in the combustion-supporting auxiliary agent is 1: 5; the structural formula of the compound A is as follows:
the wear-resistant auxiliary agent is modified nano calcium carbonate, and the modified nano calcium carbonate is prepared by the following method:
a certain amount of Ca (OH)2Adding a certain amount of modifier into the slurry according to the mass ratio of the generated calcium carbonate, placing the flask in an oil bath at 90 ℃, heating and stirring, and introducing CO while stirring2Gas is added until the pH value of the slurry is neutral, the slurry is filtered and dried, and the modified nano calcium carbonate is obtained; the dosage of the modifier is 5wt% of the nano calcium carbonate; the modifier is gamma- (methacryloyloxy) propyl trimethoxy silane.
The rubber is selected from natural rubber.
The invention also provides a preparation method of the flame-retardant wear-resistant nontoxic composite plastic track, which comprises the following steps:
s1: adding the flame-retardant auxiliary agent and the wear-resistant auxiliary agent into the rubber in proportion, and fully mixing;
s2: rolling the uniformly mixed raw materials in the step S1 into a surface layer as thin as possible, wherein the surface layer is a functional adhesive layer;
s3: and compounding the surface glue layer and the bottom glue layer, covering the thin functional glue layer in the step S2 on the surface of the surface glue layer, and vulcanizing and molding the thin functional glue layer, the surface glue layer and the bottom glue layer.
Comparative examples 1 to 4
Comparative examples 1 to 4 only changed the constitution of the flame retardant in example 2, and the remaining parameters were the same as in example 2, and the specific changes are shown in Table 1.
Comparative example 5
Comparative example 5 only the modified nano calcium carbonate of example 2 was replaced with a commercially available ordinary unmodified nano calcium carbonate, with specific variations as shown in table 1.
TABLE 1
In order to verify the flame retardant effect and the abrasion resistant effect of examples 1 to 3 and comparative examples 1 to 5, the optical cable samples of examples 1 to 3 and comparative examples 1 to 5 were subjected to the flame retardant effect and the abrasion resistant effect test.
The flame retardant effect test method comprises the following steps: a specimen having a size of 1cm X1 cm was cut out from the product. The test specimens can be tested after 48h of standing under the test conditions. The overlapping fiber layer discs were placed in the middle of the sample. The fiber layer wafer is soaked in alcohol uniformly, then is ignited and is made to self-ignite, and after the combustion flame and afterglow are extinguished, the diameter of the combustion plaque left on the surface of the sample is measured and is accurate to 1 mm. The burned plaques remaining on the surface were all less than or equal to 50mm in diameter and the sample was judged to be first flame retardant. I.e., the smaller the diameter, the better the flame retardant effect.
The wear-resistant effect detection method comprises the following steps: the detection indexes of the wear-resisting effect mainly comprise Shore A hardness and compression recovery rate, wherein the Shore A hardness is determined according to GB/T531-1999, and the compression recovery rate is determined according to GB/T14833-93.
The results of the flame retardant effect and the abrasion resistance effect test of the optical cable samples of examples 1 to 3 and comparative examples 1 to 5 are as follows:
TABLE 2
The above results show that: (1) as can be seen from examples 1 to 3 and comparative examples 1 to 4, the mass ratio of the compound A to the zinc borate in the flame retardant additive is 1: 3-5 hours later, the flame-retardant additive and the zinc borate can generate a synergistic compounding effect, so that the optimal flame-retardant effect is obtained, and when the mass ratio of the compound A to the zinc borate is beyond the range, the flame-retardant effect is poor and the requirement cannot be met; (2) it can be seen from examples 1-3 and comparative example 5 that the wear-resistant effect of the plastic track can be effectively improved after the nano calcium carbonate in the wear-resistant auxiliary agent is modified, and when the nano calcium carbonate is selected from common unmodified nano calcium carbonate sold in the market, the wear-resistant effect is not good and cannot meet the requirement.
Claims (3)
1. The flame-retardant wear-resistant nontoxic composite plastic track is characterized by comprising a bottom rubber layer, a surface rubber layer and a functional rubber layer, wherein the functional rubber layer comprises rubber, a flame-retardant auxiliary agent and a wear-resistant auxiliary agent, and the flame-retardant auxiliary agent accounts for 10-15% of the rubber by mass; the wear-resistant auxiliary agent accounts for 5-10% of the rubber by mass; the flame-retardant auxiliary agent is composed of a compound A and zinc borate, wherein the mass ratio of the compound A to the zinc borate in the flame-retardant auxiliary agent is 1: 3-5; the structural formula of the compound A is as follows:
the wear-resistant auxiliary agent is modified nano calcium carbonate, and the modified nano calcium carbonate is prepared by the following method:
a certain amount of Ca (OH)2Adding a certain amount of modifier into the slurry according to the mass ratio of the generated calcium carbonate, placing the flask in an oil bath at the temperature of 80-90 ℃, heating and stirring, and introducing CO while stirring2Gas is added until the pH value of the slurry is neutral, the slurry is filtered and dried, and the modified nano calcium carbonate is obtained; the amount of the modifier is 3-5 wt% of the nano calcium carbonate; the modifier is gamma- (methacryloyloxy) propyl trimethoxy silane.
2. The flame retardant, abrasion resistant and non-toxic composite plastic track according to claim 1, wherein the rubber is selected from styrene butadiene rubber, ethylene propylene rubber or natural rubber.
3. A method for preparing a flame-retardant, wear-resistant and non-toxic composite plastic track according to any one of claims 1 to 2, comprising the following steps:
s1: adding the flame-retardant auxiliary agent and the wear-resistant auxiliary agent into the rubber in proportion, and fully mixing;
s2: rolling the uniformly mixed raw materials in the step S1 into a surface layer as thin as possible, wherein the surface layer is a functional adhesive layer;
s3: and compounding the surface glue layer and the bottom glue layer, covering the thin functional glue layer in the step S2 on the surface of the surface glue layer, and vulcanizing and molding the thin functional glue layer, the surface glue layer and the bottom glue layer.
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Address after: 266000 459, unit 1, building 1, Hualu international Yulong Plaza community, Macao Road, Jiaozhou City, Qingdao City, Shandong Province Patentee after: Shandong Huiwen Construction Engineering Co.,Ltd. Address before: 266300 unit 459, unit 1, building 1, Hualu international Yulong square community, Macao Road, Jiaozhou City, Qingdao City, Shandong Province Patentee before: Qingdao Huiwen Educational Equipment Co.,Ltd. |
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