A kind of anti-pressure sponge and preparation method thereof
A sponge and nano-silica sol technology, which is applied in the field of sponge preparation, can solve the problems of unfavorable environmental protection and sustainable development, hidden dangers of using sponges, and high stability of polyurethane, so as to increase strength and molecular adhesion, and enhance compression resistance. effect, the effect of improving the compressive strength
Active Publication Date: 2016-02-24
沈阳鲜众聚氨酯有限公司
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- Application Information
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Problems solved by technology
[0002] Sponge products have been gradually popularized in people's lives, including seats, sofas, mattresses and other household items made of sponges. Polyether polyols are the main raw materials for the production of polyurethane sponges. Polyether polyols are generally used in the production of polyurethane sponges. Alcohols usually use petroleum-based polyether polyols. However, polyurethane made of petroleum-based polyether polyols has high stability and is difficult to decompose in a natural state; making them non-degradable is not conducive to environmental protection and sustainable development. With the expansion of the application field of sponge products, the market needs a large supply of sponges. Because the current sponges have many performance defects, there are potential safety hazards in the use of sponges.
Method used
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Embodiment 1
[0011] Example 1: Compression-resistant sponge, the parts by weight (kg) of its raw materials are: trimethylolpropane polyether 105, 3,4-dichlorophenyl isocyanate 58, nanometer calcium carbonate 17, isopropyl tris(di Octyl pyrophosphate acyloxy) titanate 1.0, triethylenediamine 1.2, ammonium bicarbonate 7.0, modified nano silica sol 3.5 and water 8.0.
[0012] The preparation method of the modified nano-silica sol is as follows: add 15 parts by weight of water into the reaction vessel and heat to 70-80°C; take 2 parts by weight of polyvinyl alcohol into the water, stir and dissolve, and then add 0.1 part by weight of nano-nitrided Aluminum powder, 1.2 parts by weight of morpholine, 1 part by weight of nano-silica sol, and 1 part by weight of acrylic acid, stirred evenly, cooled to 20-30°C, added 0.3 parts by weight of sodium persulfate, stirred evenly, reacted for 30-45 minutes, and then , then add 1 weight part of silane coupling agent KH-550 and 0.2 weight part of rose essen...
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Abstract
The invention discloses a compression-resistance sponge and a preparation method, which comprises the following raw materials: 95-105 parts of trimethylolpropane polyether, 58-65 parts of 3,4-dichlorobenzene isocyanate, 17-23 parts of nano calcium carbonate, 1.0-2.0 parts of isopropyl tri(dioctylpyrophosphate) titanate, 0.8-1.2 parts of triethylene diamine, 7.0-9.0 parts of ammonium bicarbonate, 2.5-3.5 parts of modified nano silica sol and 8.0-9.0 parts of water. According to the invention, trimethylolpropane polyether and 3,4-dichlorobenzene isocyanate are taken as main raw materials, and have characteristics of softness, elasticity, water absorption resistance and water resistance. Nano calcium carbonate has strengthening and toughening effects, the compressive strength and the compressive modulus of elasticity of the sponge can be increased, and the nano calcium carbonate can be used for modifying trimethylolpropane polyether, products performance is increased, and the compression resistance effect is enhanced.
Description
technical field [0001] The invention relates to a preparation method of a sponge, in particular to a pressure-resistant sponge and a preparation method thereof. Background technique [0002] Sponge products have been gradually popularized in people's lives, including seats, sofas, mattresses and other household items made of sponges. Polyether polyols are the main raw materials for the production of polyurethane sponges. Polyether polyols are generally used in the production of polyurethane sponges. Alcohols usually use petroleum-based polyether polyols. However, polyurethane made of petroleum-based polyether polyols has high stability and is difficult to decompose in a natural state; making them non-degradable is not conducive to environmental protection and sustainable development. With the expansion of the application field of sponge products, the market needs a large amount of sponge supply. Due to the many performance defects of the current sponges, there are potential ...
Claims
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IPC IPC(8): C08G18/77C08G18/66C08G18/48C08K9/06C08K9/04C08K9/02C08K3/36C08K3/26C08J9/08C08G101/00
CPCC08G18/4829C08G18/773C08G2101/00C08J9/08C08J2203/02C08J2203/18C08J2375/08C08K3/26C08K3/36C08K9/02C08K9/04C08K9/06C08K9/08C08K13/06C08K2003/265C08K2201/011
Inventor 敬元祥
Owner 沈阳鲜众聚氨酯有限公司