阅读说明：本技术 一种可应用于液氧环境的双组分ab胶 (Bi-component AB adhesive applicable to liquid oxygen environment ) 是由 武湛君 陈铎 王宏宇 李世超 崔运广 于 2020-08-20 设计创作，主要内容包括：本发明涉及一种胶结剂的改进,具体为一种可应用于液氧环境的双组分AB胶,具有耐低温、阻燃且满足液氧相容性要求；以质量份数计,A胶原料组成包括：60-80份功能性胶液；10-30份辅胶液；1-10份填料；1-10份增强剂一；1份-10份增韧剂；2-8份引发剂；B胶原料组成包括：0.1-4份促进剂；10-20份丙烯酸；20-50份改性剂；10-50份增强剂二；0.01-0.1份稳定剂。(The invention relates to improvement of a cementing agent, in particular to a bi-component AB adhesive which can be applied to a liquid oxygen environment, has low temperature resistance and flame retardance and meets the requirement of liquid oxygen compatibility; the collagen material A comprises the following components in parts by mass: 60-80 parts of functional glue solution; 10-30 parts of auxiliary glue solution; 1-10 parts of a filler; 1-10 parts of a first reinforcing agent; 1-10 parts of a toughening agent; 2-8 parts of an initiator; the collagen material B comprises the following components: 0.1-4 parts of an accelerator; 10-20 parts of acrylic acid; 20-50 parts of a modifier; 10-50 parts of a second reinforcing agent; 0.01-0.1 part of stabilizer.)

1. A can be applied to two-component AB glue of liquid oxygen environment which characterized in that: the collagen material A comprises the following components in parts by mass: 60-80 parts of functional glue solution; 10-30 parts of auxiliary glue solution; 1-10 parts of a filler; 1-10 parts of a first reinforcing agent; 1-10 parts of a toughening agent; 2-8 parts of an initiator;

the functional glue solution comprises one or more of perfluoroacrylic acid ester, 2-fluoroacrylic acid methyl ester and 2-fluoroacrylic acid ethyl ester;

the auxiliary glue solution comprises one or more of acrylic acid, methyl methacrylate and ethyl methacrylate;

the filler is one or a combination of more of triphenyl phosphine, phenoxy cyclotriphosphazene, phosphorus pentoxide, red phosphorus and ammonium polyphosphate;

the first reinforcing agent is one or a combination of more of nano silicon dioxide, nano boron nitride, aluminum hydroxide and magnesium oxide;

the toughening agent is one or a combination of more of nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene and polyether sulfone resin;

the initiator is one or a combination of more of cumene hydroperoxide, benzoyl peroxide, cumyl hydroperoxide and methyl ethyl ketone peroxide;

the collagen material B comprises the following components: 0.1-4 parts of an accelerator; 10-20 parts of acrylic acid; 20-50 parts of a modifier; 10-50 parts of a second reinforcing agent; 0.01-0.1 part of stabilizer;

the accelerant is one or a combination of more of dimethyl p-toluidine, diethylaniline, cobalt naphthenate and aniline;

the modifier is one or a combination of more of o-benzene type, m-benzene type, p-benzene type, bisphenol A type and vinyl ester type unsaturated polyester;

the second reinforcing agent is one or a combination of more of nano silicon dioxide, nano boron nitride, aluminum hydroxide and magnesium oxide;

the stabilizer is one or a combination of more of benzoquinone, hydroquinone methyl ether and phenol.

2. The two-component AB glue of claim 1, applicable to liquid oxygen environments, characterized in that: the auxiliary glue solution is specifically a combination of methyl methacrylate and ethyl methacrylate, and the mass parts of all the components in the combination are 10-20%.

3. The two-component AB glue of claim 1, applicable to liquid oxygen environments, characterized in that: the functional glue solution is specifically a combination of perfluoroacrylate and 2-fluoroacrylate, wherein the mass parts of the components in the combination are respectively 10% -30% and 20% -30%.

4. The two-component AB glue of claim 1, applicable to liquid oxygen environments, characterized in that: the filler is specifically a combination of triphenylphosphine and phenoxycyclotriphosphazene, and the mass parts of all the components in the combination are 1-10%.

5. The two-component AB glue of claim 1, applicable to liquid oxygen environments, characterized in that: the first reinforcing agent and the second reinforcing agent are specifically nano silicon dioxide.

6. The two-component AB glue of claim 1, applicable to liquid oxygen environments, characterized in that: the toughening agent is specifically nitrile rubber.

7. The two-component AB glue of claim 1, applicable to liquid oxygen environments, characterized in that: the initiator is cumene hydroperoxide.

8. The two-component AB glue of claim 1, applicable to liquid oxygen environments, characterized in that: the modifier is specifically bisphenol A type unsaturated polyester.

9. A method for preparing the two-component AB glue applicable to liquid oxygen environment according to claim 1, characterized in that: the method comprises the following steps: the method comprises the following steps: adding the components of the glue A into a reaction kettle, and heating and stirring at the temperature of 30-40 ℃ and the stirring speed of 50-100r/min under the protection of an inert gas atmosphere;

step two: grinding the prepared glue solution A by a three-roller machine, wherein the grinding gap is 0.3mm, and then filling for later use;

step three: adding the components of the glue B into a reaction kettle, heating and stirring at the temperature of 30-50 ℃ and the stirring speed of 50-100 r/min;

step four: and mixing and stirring the stirred glue solution B by using a three-roller machine, wherein the distance between a middle roller and a rear roller of the three-roller machine is 0.3mm, and canning the ground glue solution for later use.

Technical Field

The invention relates to improvement of a cementing agent, in particular to a bi-component AB adhesive applicable to a liquid oxygen environment.

Background

In recent years, with the development of the fields of aerospace, new energy, medical treatment and the like, liquid oxygen is applied to the fields more and more widely. Liquid oxygen is used as a special low-temperature medium, has two properties of low temperature and strong oxidizing property, and a material applied to a liquid oxygen environment must meet the requirement of liquid oxygen compatibility, and the test standards of the liquid oxygen compatibility of the material mainly comprise international ASTMD2512 and domestic QJ 3177-2003. Because of the particularity of the liquid oxygen environment, no cementing agent meeting the use requirement of the liquid oxygen environment exists at present.

The double-component AB glue is a double-component hardening agent, comprises two components of a main glue and a curing agent, has the advantages of convenient use, low curing temperature and high bonding strength, and is widely applied to various fields. However, the AB glue commercially used in the current market is flammable organic, easy to oxidize, and not resistant to low temperature, and is difficult to meet the applicable requirement of a liquid oxygen compatible environment.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the existing defects and provides a bi-component AB adhesive which can be applied to a liquid oxygen environment, has low temperature resistance and flame retardance and meets the requirement of liquid oxygen compatibility.

In order to solve the technical problems, the invention provides the following technical scheme: a bi-component AB glue applicable to a liquid oxygen environment comprises an A collagen material and a B collagen material, wherein the A collagen material comprises the following components in parts by mass: 60-80 parts of functional glue solution; 10-30 parts of auxiliary glue solution; 1-10 parts of a filler; 1-10 parts of a first reinforcing agent; 1-10 parts of a toughening agent; 2-8 parts of an initiator;

the functional glue solution comprises one or more of perfluoroacrylic acid ester, 2-fluoroacrylic acid methyl ester and 2-fluoroacrylic acid ethyl ester;

the auxiliary glue solution comprises one or more of acrylic acid, methyl methacrylate and ethyl methacrylate;

the filler is one or a combination of more of triphenyl phosphine, phenoxy cyclotriphosphazene, phosphorus pentoxide, red phosphorus and ammonium polyphosphate;

the first reinforcing agent is one or a combination of more of nano silicon dioxide, nano boron nitride, aluminum hydroxide and magnesium oxide;

the toughening agent is one or a combination of more of nitrile rubber, chloroprene rubber, chlorosulfonated polyethylene and polyether sulfone resin;

the initiator is one or a combination of more of cumene hydroperoxide, benzoyl peroxide, cumyl hydroperoxide and methyl ethyl ketone peroxide;

the collagen material B comprises the following components: 0.1-4 parts of an accelerator; 10-20 parts of acrylic acid; 20-50 parts of a modifier; 10-50 parts of a second reinforcing agent; 0.01-0.1 part of stabilizer;

the accelerant is one or a combination of more of dimethyl p-toluidine, diethylaniline, cobalt naphthenate and aniline;

the modifier is one or a combination of more of o-benzene type, m-benzene type, p-benzene type, bisphenol A type and vinyl ester type unsaturated polyester;

the second reinforcing agent is one or a combination of more of nano silicon dioxide, nano boron nitride, aluminum hydroxide and magnesium oxide;

the stabilizer is one or a combination of more of benzoquinone, hydroquinone methyl ether and phenol.

Preferably, the auxiliary glue solution is a combination of methyl methacrylate and ethyl methacrylate, and the mass parts of all the components in the combination are 10-20%.

Preferably, the functional glue solution is a combination of perfluoroacrylate and 2-fluoroacrylate, and the mass parts of the components in the combination are respectively 10% -30% and 20% -30%.

Preferably, the filler is a combination of triphenylphosphine and phenoxycyclotriphosphazene, and the mass parts of all the components in the combination are 1-10%.

Preferably, the first reinforcing agent and the second reinforcing agent are specifically nano silicon dioxide.

Preferably, the toughening agent is nitrile rubber.

Preferably, the initiator is cumene hydroperoxide.

Preferably, the modifier is specifically bisphenol A type unsaturated polyester.

In order to solve the technical problems, the invention provides the following technical scheme: a preparation method of bi-component AB glue applicable to liquid oxygen environment comprises the following steps: the method comprises the following steps: adding the components of the glue A into a reaction kettle, and heating and stirring at the temperature of 30-40 ℃ and the stirring speed of 50-100r/min under the protection of an inert gas atmosphere;

step two: grinding the prepared glue solution A by a three-roller machine, wherein the grinding gap is 0.3mm, and then filling for later use;

step three: adding the components of the glue B into a reaction kettle, heating and stirring at the temperature of 30-50 ℃ and the stirring speed of 50-100 r/min;

step four: and mixing and stirring the stirred glue solution B by using a three-roller machine, wherein the distance between a middle roller and a rear roller of the three-roller machine is 0.3mm, and canning the ground glue solution for later use.

The invention has the beneficial effects that: the prepared AB glue can be prepared by the following components in a mass ratio of 1: 1, using; the functional glue solution and special elements such as fluorine, phosphorus and the like contained in the filler in the formula can block high-energy free radicals in the oxidation reaction and chain free radical reaction in the oxidation process, thereby achieving the purpose of improving the liquid oxygen compatibility of a material system; the reinforcing agent and the like can further improve the low temperature resistance and the flame retardant property of the bi-component AB adhesive; the modifier selects ether bond, ester group, hydroxyl group and the like contained in the bisphenol A unsaturated polyester to further improve the bonding capability of a material system, so that the formula has the advantages of good bonding strength, low temperature resistance, flame retardance and good liquid oxygen compatibility, and meets the use requirement of a liquid oxygen environment.

Detailed Description

While the preferred embodiments of the present invention will be described below, it should be understood that the preferred embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.