阅读说明：本技术 一种发泡缓冲抗压材料及其制备方法 (Foaming buffering compression-resistant material and preparation method thereof ) 是由 李俊 鲍俊瑶 开金文 汪汉雄 方振兴 张文强 于 2019-11-27 设计创作，主要内容包括：本发明公开了一种发泡缓冲抗压材料,它是由下述重量份的原料组成的：ac发泡剂4-6、青胶蒲公英橡胶粉30-47、改性苯乙烯乳液110-140、引发剂3-4、1,2-二甲基咪唑1-2、蓖麻酸钙2-3、甲基丙烯酸三氟乙酯3-4、丙烯酸2-3,本发明加入的棕榈蜡具有一定的软化效果,从而可以提高成品的弹性,且其具有增强橡胶的抗老化性能的效果,其具有的低粘度性也提高成品材料的稳定性,进一步提高抗压强度。(The invention discloses a foaming buffering compression-resistant material which is prepared from the following raw materials in parts by weight: 4-6 parts of ac foaming agent, 30-47 parts of green rubber dandelion rubber powder, 110-140 parts of modified styrene emulsion, 3-4 parts of initiator, 1, 2-dimethyl imidazole, 1-2 parts of calcium ricinoleate, 3-4 parts of trifluoroethyl methacrylate and 2-3 parts of acrylic acid.)

1. The foaming buffering compression-resistant material is characterized by comprising the following raw materials in parts by weight:

4-6 parts of ac foaming agent, 30-47 parts of green gum dandelion rubber powder, 110-140 parts of modified styrene emulsion, 3-4 parts of initiator, 1-2 parts of 1, 2-dimethylimidazole, 2-3 parts of calcium ricinoleate, 3-4 parts of trifluoroethyl methacrylate and 2-3 parts of acrylic acid.

2. The foam buffering compression-resistant material as claimed in claim 1, wherein the initiator is ammonium persulfate.

3. The foaming buffering compression-resistant material as claimed in claim 1, wherein the modified styrene emulsion is composed of the following raw materials in parts by weight:

80-90 parts of styrene, 2-4 parts of melamine, 3-5 parts of hydrated zinc borate, 1-2 parts of sodium carboxymethylcellulose, 0.4-1 part of fatty acid polyglycol ester and 4-7 parts of palm wax.

4. The foamed buffering compression-resistant material as claimed in claim 3, wherein the preparation method of the modified styrene emulsion comprises the following steps:

(1) adding carnauba wax into chloroform with the weight 10-15 times of the carnauba wax, raising the temperature to 60-65 ℃, keeping the temperature and stirring for 10-20 minutes, adding melamine, stirring to normal temperature, and distilling to remove chloroform to obtain modified carnauba wax;

(2) mixing hydrated zinc borate and sodium carboxymethylcellulose, adding into deionized water 20-30 times of the weight of the mixture, and stirring at 50-55 deg.C for 20-30 min to obtain water dispersion;

(3) mixing styrene with the modified palm wax, stirring uniformly, adding into the aqueous dispersion, adding fatty acid polyethylene glycol ester, raising the temperature to 60-75 ℃, and stirring for 30-40 minutes under heat preservation to obtain the final product.

5. A method for preparing the foam cushioning compression-resistant material as claimed in claim 1, which comprises the following steps:

(1) adding an initiator into deionized water with the weight 30-40 times of that of the initiator, and uniformly stirring;

(2) mixing 1, 2-dimethylimidazole and calcium ricinoleate, adding into anhydrous ethanol with the weight 10-17 times of that of the mixture, and uniformly stirring to obtain an alcohol dispersion liquid;

(3) mixing green rubber dandelion rubber powder and acrylic acid, stirring for 10-20 minutes at 80-100 ℃, adding into the modified styrene emulsion, stirring uniformly, sending into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 60-75 ℃, adding the initiator solution and the alcohol dispersion, stirring for 3-5 hours at the temperature, discharging, performing suction filtration, washing a filter cake with water, and drying at normal temperature to obtain a rubber powder modified polymer;

(4) mixing the rubber powder modified polymer with trifluoroethyl methacrylate and an ac foaming agent, drying for 2-3 hours under the steam of 100-110 ℃, discharging and cooling to obtain the foamed buffering compression-resistant material.

Technical Field

The invention belongs to the field of materials, and particularly relates to a foaming buffering compression-resistant material and a preparation method thereof.

Background

Disclosure of Invention

The invention aims to provide a foaming buffering compression-resistant material and a preparation method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a foaming buffering compression-resistant material is composed of the following raw materials in parts by weight:

4-6 parts of ac foaming agent, 30-47 parts of green gum dandelion rubber powder, 110-140 parts of modified styrene emulsion, 3-4 parts of initiator, 1-2 parts of 1, 2-dimethylimidazole, 2-3 parts of calcium ricinoleate, 3-4 parts of trifluoroethyl methacrylate and 2-3 parts of acrylic acid.

The initiator is ammonium persulfate.

The modified styrene emulsion is prepared from the following raw materials in parts by weight:

80-90 parts of styrene, 2-4 parts of melamine, 3-5 parts of hydrated zinc borate, 1-2 parts of sodium carboxymethylcellulose, 0.4-1 part of fatty acid polyglycol ester and 4-7 parts of palm wax.

The preparation method of the modified styrene emulsion comprises the following steps:

(1) adding carnauba wax into chloroform with the weight 10-15 times of the carnauba wax, raising the temperature to 60-65 ℃, keeping the temperature and stirring for 10-20 minutes, adding melamine, stirring to normal temperature, and distilling to remove chloroform to obtain modified carnauba wax;

(2) mixing hydrated zinc borate and sodium carboxymethylcellulose, adding into deionized water 20-30 times of the weight of the mixture, and stirring at 50-55 deg.C for 20-30 min to obtain water dispersion;

(3) mixing styrene with the modified palm wax, stirring uniformly, adding into the aqueous dispersion, adding fatty acid polyethylene glycol ester, raising the temperature to 60-75 ℃, and stirring for 30-40 minutes under heat preservation to obtain the final product.

A preparation method of a foaming buffering compression-resistant material comprises the following steps:

(1) adding an initiator into deionized water with the weight 30-40 times of that of the initiator, and uniformly stirring;

(2) mixing 1, 2-dimethylimidazole and calcium ricinoleate, adding into anhydrous ethanol with the weight 10-17 times of that of the mixture, and uniformly stirring to obtain an alcohol dispersion liquid;

(3) mixing green rubber dandelion rubber powder and acrylic acid, stirring for 10-20 minutes at 80-100 ℃, adding into the modified styrene emulsion, stirring uniformly, sending into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 60-75 ℃, adding the initiator solution and the alcohol dispersion, stirring for 3-5 hours at the temperature, discharging, performing suction filtration, washing a filter cake with water, and drying at normal temperature to obtain a rubber powder modified polymer;

(4) mixing the rubber powder modified polymer with trifluoroethyl methacrylate and an ac foaming agent, drying for 2-3 hours under the steam of 100-110 ℃, discharging and cooling to obtain the foamed buffering compression-resistant material.

The invention has the advantages that:

firstly, treating palm wax by using melamine, then dispersing styrene into aqueous dispersion of hydrated zinc borate, and mixing the styrene with modified palm wax to obtain modified styrene emulsion; the added palm wax has a certain softening effect, so that the elasticity of a finished product can be improved, the palm wax has the effect of enhancing the ageing resistance of rubber, the low viscosity of the palm wax also improves the stability of a finished product material, and the compressive strength is further improved.

Detailed Description