Disclosed is method for producing composition for heavy-duty forklift tire

A technology for forklift tires and manufacturing methods, applied in the field of polyurethane materials, can solve problems such as hardness, strength and modulus performance decline, and achieve the effects of improving heat resistance, improving uniform dispersion, and improving thermal stability

Inactive Publication Date: 2021-01-26
CHUZHOU GLOBAL POLYURETHANE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the intermolecular interaction force of polyurethane makes the internal heat generation of polyurethane elastomer serious under dynamic conditions, so that when the polyurethane elastomer is used at a high temperature, its external dimensions will change, and the hardness, strength and modulus properties will all decrease. , thus limiting the application of polyurethane elastomers in tires

Method used

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  • Disclosed is method for producing composition for heavy-duty forklift tire

Examples

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Effect test

Embodiment example 1

[0024] A composition for heavy-duty forklift tires, made of the following raw materials in parts by weight: 30 parts of polyether polyol, 70 parts of polyester polyol, 15 parts of isocyanate, 5 parts of 3,5-diethyltoluenediamine, three 1 part of methylolpropane, 4 parts of modified graphene oxide, 0.1 part of dibutyltin dilaurate, 0.1 part of polysiloxane-oxyalkylene block copolymer, 3 parts of water;

[0025] The manufacture of the composition for heavy-duty forklift truck tires consists of the following steps:

[0026] Step S1: polyether polyol, polyester polyol, isocyanate, 3,5-diethyltoluenediamine, trimethylolpropane, dibutyltin dilaurate, polysiloxane-oxyalkylene block copolymer 1. Water is added to the mixer, the temperature is 25°C, and the stirring speed is 4000r / min. Stir for 15s. The functionality of polyether polyol is 2, the number average molecular weight is 2000, and the functionality of polyester polyol is 3. , the number average molecular weight is 5500, and ...

Embodiment example 2

[0034] A composition for heavy-duty forklift tires, made of the following raw materials in parts by weight: 35 parts of polyether polyol, 65 parts of polyester polyol, 10 parts of isocyanate, 6 parts of 3,5-diethyltoluenediamine, three 2 parts of methylolpropane, 6 parts of modified graphene oxide, 0.3 part of dibutyltin dilaurate, 0.2 part of polysiloxane-oxyalkylene block copolymer, 4 parts of water;

[0035] The manufacture of the composition for heavy-duty forklift truck tires consists of the following steps:

[0036] Step S1: polyether polyol, polyester polyol, isocyanate, 3,5-diethyltoluenediamine, trimethylolpropane, dibutyltin dilaurate, polysiloxane-oxyalkylene block copolymer 1. Water is added to the mixer, the temperature is 25°C, and the stirring speed is 4000r / min. Stir for 15s. The functionality of polyether polyol is 2, the number average molecular weight is 2000, and the functionality of polyester polyol is 3. , the number average molecular weight is 5500, and...

Embodiment example 3

[0044] A composition for heavy-duty forklift tires, made of the following raw materials in parts by weight: 40 parts of polyether polyol, 60 parts of polyester polyol, 15 parts of isocyanate, 10 parts of 3,5-diethyltoluenediamine, three 3 parts of methylolpropane, 9 parts of modified graphene, 0.5 part of dibutyltin dilaurate, 0.3 part of polysiloxane-oxyalkylene block copolymer, 6 parts of water;

[0045] The manufacture of the composition for heavy-duty forklift truck tires consists of the following steps:

[0046] Step S1: polyether polyol, polyester polyol, isocyanate, 3,5-diethyltoluenediamine, trimethylolpropane, dibutyltin dilaurate, polysiloxane-oxyalkylene block copolymer 1. Water is added to the mixer, the temperature is 25°C, and the stirring speed is 4000r / min. Stir for 15s. The functionality of polyether polyol is 2, the number average molecular weight is 2000, and the functionality of polyester polyol is 3. , the number average molecular weight is 5500, and the ...

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Abstract

The invention discloses a manufacturing method of a composition for a tire of a load-bearing forklift. The manufacturing method comprises the following steps: preparing a polyurethane prepolymer and preparing a polyurethane composition. The composition for the loaded forklift tire is prepared from the following raw materials in parts by weight: 30-40 parts of polyether polyol, 60-70 parts of polyester polyol, 5-15 parts of isocyanate, 5-15 parts of a chain extender, 1-3 parts of a cross-linking agent, 4-8 parts of modified inorganic filler, 0.1-0.5 part of a catalyst, 0.1-0.3 part of a stabilizer and 3-6 parts of a foaming agent. The modified graphene oxide is added, the uniform dispersity of the modified graphene oxide in a polyurethane matrix is utilized, and a net-shaped structure formed by the modified graphene oxide in the polyurethane matrix is also utilized, so that the composition for the load-bearing forklift tire is obtained; and meanwhile, the composite material has the advantages of high bearing capacity, high strength, good toughness, impact resistance, wear resistance and high thermal stability.

Description

technical field [0001] The invention belongs to the technical field of polyurethane materials, and in particular relates to a method for manufacturing a composition for heavy-duty forklift truck tires. Background technique [0002] Since the invention of pneumatic tires in 1885, after more than a century of development, tire materials have undergone earth-shaking changes technically and theoretically. The resulting waste, pollution and other issues are increasingly being replaced by emerging tire materials and production technologies. Among them, polyurethane elastomer is famous for its excellent high wear resistance and wear-resistant rubber. It has a wide range of hardness, high strength, high load bearing, high tear strength, low temperature resistance, oil resistance, low rolling resistance, excellent vibration absorption and Moreover, polyurethane tires rarely produce waste during production and use, and part of the carcass of waste tires can be recycled and reused, sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08G18/76C08G18/48C08G18/42C08G18/40C08G18/32C08K3/04
CPCC08L75/04C08G18/7614C08G18/48C08G18/42C08G18/40C08G18/3206C08K3/042C08L2201/08C08L83/12
Inventor 龚文祥彭安玲
Owner CHUZHOU GLOBAL POLYURETHANE TECH CO LTD
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