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Plastic material and preparation method thereof

A technology of plastic materials and formulations, applied in the field of plastic materials, can solve problems such as uneven foaming, achieve good foaming effects, improve reactivity, and protect body joints

Inactive Publication Date: 2020-04-28
山东世纪联合新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the technical defects of the prior art, and provides a plastic material and its preparation method to solve the technical problem of non-uniform foaming of conventional polyurethane plastic materials during the preparation process in the prior art

Method used

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  • Plastic material and preparation method thereof
  • Plastic material and preparation method thereof
  • Plastic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A plastic material, prepared by mixed reaction of component A containing polyether polyol and component B containing isocyanate; wherein, the raw material composition and weight percentage of component A are:

[0029]

[0030]

[0031] The raw material composition and weight percent of B component are:

[0032] Mixed polyether polyol 60%-75%

[0033] Diphenylmethane diisocyanate 25%-40%.

[0034] This kind of catalyst is a compound catalyst of organic amine catalyst and metal catalyst, which can improve the reaction activity and speed up the reaction rate, and at the same time, it can react to produce a pore structure, so that the plastic material has excellent performance.

[0035] The preparation method of above-mentioned plastic material, comprises the following steps:

[0036] (1) The preparation method of component A containing polyether polyol: according to the above raw materials, according to their weight ratio, first add liquid materials such as polyeth...

Embodiment 2

[0040] (1) Preparation of component A containing polyether polyol: According to the formula amount, first add liquid materials such as polyether polyol and plasticizer, start stirring, and then add chain extender, light stabilizer, antioxidant, anti-settling agent , fillers and pigments are added according to weight percentage, stirred evenly, and heated to 70-80°C, stirred for 1 hour, then cooled to below 60°C, added catalyst, stirred for 0.5 hour, and then grinded the above materials with a grinder.

[0041] (2) The preparation method of component B containing isocyanate: According to the formula amount, first add polyether polyol, start stirring, heating device, when the temperature rises to 75-80°C, vacuumize and dehydrate and degas for 1 hour. Then lower the temperature to below 60°C, add diphenylmethane diisocyanate, and react at 80-85°C for 3 hours.

[0042] (3) The application and preparation method of a catalyst in plastic materials; the A component containing polyeth...

Embodiment 3

[0047] A plastic material, comprising a component A containing polyether polyol and a component B containing isocyanate, wherein the component A is composed of the following components in weight percentage: 28% polyether polyol, 10% plasticizer, 5% chain agent, 0.5% light stabilizer, 0.5% antioxidant, 0.5% anti-settling agent, 50% filler, 5% pigment, 0.5% catalyst; B component is composed of the following components by weight percentage: mixed polyether polyol 60%, diphenylmethane diisocyanate 40%; the catalyst is a complex product of an organic amine catalyst and a metal catalyst.

[0048] The preparation method of above-mentioned plastic material, comprises the following steps:

[0049] 1) Mix the polyether polyol and plasticizer in the formulated amount and stir, then add the chain extender, light stabilizer, antioxidant, anti-settling agent, filler, and pigment in the formulated amount, stir evenly, and heat up to 70 ℃, stirred for 1 hour, then lowered the temperature to ...

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Abstract

The invention provides a plastic material and a preparation method thereof. The plastic material comprises a component A containing polyether polyol and a component B containing isocyanate, wherein acompound catalyst consisting of an organic amine catalyst and a metal catalyst is introduced into the component A; in the aspect of the preparation method, the component A and the component B are respectively prepared from the components according to the formula ratio, then are mixed according to a specific ratio and the mixture is cured to obtain the plastic material disclosed by the invention. The catalyst is used for foaming, so that foaming is more uniform, and pore structures can be uniformly distributed; and meanwhile, the catalyst is added during preparation of the component A, so thatthe construction is more convenient, the dosage is more accurate, the material has better impact absorption rate, and the joints of the body of a sporter can be better protected. The plastic materialis suitable for being used as polyurethane plastic sport fields such as plastic runways and courts.

Description

technical field [0001] The invention relates to the technical field of plastic materials, further relates to the application and preparation method of catalysts in plastic materials, and in particular to a plastic material and a preparation method thereof. Background technique [0002] Polyurethane plastic track, also known as all-weather sports track, is composed of polyurethane prepolymer, mixed polyether, filler and other materials. Good mechanical properties, good anti-aging performance. In the prior art, the plastic material is generally prepared by adding a catalyst, which means that the catalyst is added after mixing components A and B before construction. This method is not conducive to uniform mixing, and the catalyst activity is low and the speed is slow. During site construction, it is inconvenient and the dosage is uncertain. Moreover, the current foamed porous plastic materials are mostly prepared by adding water. This method is greatly affected by the climate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/22C08G18/16C08G18/76C08G18/48C08G18/12C08J9/06C08L75/08
CPCC08G18/12C08G18/161C08G18/22C08G18/4804C08G18/7671C08J9/06C08J2375/08C08G18/48
Inventor 路玲鲍中村
Owner 山东世纪联合新材料科技有限公司
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