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Waterproof and highly-elastic foamable pure acrylic emulsion, and foamed material prepared therefrom

A pure acrylic emulsion and foaming material technology, applied in the field of foaming materials, can solve the problems of poor water resistance of polyurethane, high production cost, harm to producers, etc.

Inactive Publication Date: 2017-08-15
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, polyurethane has poor water resistance and high production costs, especially the presence of toxic and harmful solvents in the production process, which not only has a very serious impact on the environment, but also has considerable harm to producers.

Method used

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  • Waterproof and highly-elastic foamable pure acrylic emulsion, and foamed material prepared therefrom
  • Waterproof and highly-elastic foamable pure acrylic emulsion, and foamed material prepared therefrom
  • Waterproof and highly-elastic foamable pure acrylic emulsion, and foamed material prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Pure acrylic emulsion is prepared using the following components in parts by mass:

[0018]

[0019]

[0020] Preparation Process:

[0021] (1) Mix the emulsifier according to the above ratio, add 90 parts of water, fully dissolve until transparent;

[0022] (2) Weigh the soft monomers, hard monomers, functional monomers and surface active monomers in proportion, mix them evenly, and gradually add them dropwise into the emulsifier aqueous solution under high-speed stirring, and stir them stably for about 30 minutes after adding them all.

[0023] (3) Take 1 / 3 of the emulsion to the reactor;

[0024] (4) The initiator is dissolved in 10 parts of water to form a stable solution, and 1 / 3 is added to the kettle;

[0025] (5) The stirring speed is 120-150rpm, and the temperature gradually rises to 75°C. If the temperature in the kettle rises and boils, the temperature should be lowered, and the remaining emulsion and initiator aqueous solution should be added simulta...

Embodiment 2

[0037] Pure acrylic emulsion is prepared using the following components in parts by mass:

[0038]

[0039] The preparation process is the same as in Example 1.

[0040] Test results of pure acrylic emulsion: solid content: 49.98%, viscosity: 500mPa.s, water absorption: 2.5%.

Embodiment 3

[0042] The foaming material is prepared using the following components in parts by mass, and the pure acrylic emulsion adopts the product prepared in Example 1:

[0043]

[0044] Preparation Process:

[0045] (1) 100 parts of emulsion, add a thickener, stir evenly to obtain a viscous emulsion;

[0046] (2) Take the thickening emulsion, add foaming agent, foam stabilizer, crosslinking agent, and stir;

[0047] (3) Inflate or stir at high speed to foam to obtain cream-like foam;

[0048] (4) Spread it on the non-woven fabric, and strictly control the glue amount of 250~300g / m 2 ;

[0049] (5) Heating temperature is about 125-150°C, blast drying, and complete dehydration to obtain the product.

[0050] Detection method:

[0051] Water resistance: Washing machine for more than 5 times without glue falling and powdering;

[0052] High elasticity: After being pressed with a finger (about 20N), it can rebound within 10 seconds and return to its original shape;

[0053] Init...

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Abstract

The invention discloses a waterproof and highly-elastic foamable pure acrylic emulsion, and a foamed material prepared therefrom. The pure acrylic emulsion with good washability and excellent viscoelasticity is synthesized through a pre-emulsifying semi-continuous seed emulsion polymerization method by selecting the kinds of a soft monomer, a hard monomer and a functional monomer and adjusting the ratio of the monomers. The synthesized emulsion has the characteristics of good initial viscosity, high solid content, good washability and high resiliency after being foamed and combined, can be used as a polyurethane substitute, can be used in carpet flocking and car foot mats, and has a high demand.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a water-resistant high-elasticity foamable pure acrylic emulsion and a foaming material prepared based on the above-mentioned material. Background technique [0002] As one of the indispensable materials in modern industry, polyurethane has many excellent properties, such as good softness and elasticity, good strength, etc., and has been widely used in the industrial field. Because in today's society, international crises such as the energy crisis, the greenhouse effect, and environmental pollution have already quietly appeared in front of the eyes of all countries. Therefore, the emphasis on green environmental protection and sustainable development is becoming more and more obvious. In addition, polyurethane has poor water resistance and high production cost, especially the existence of toxic and harmful solvents in the production process, which not only has a very serious imp...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F220/28C08F220/06C08F222/02C08F2/26C08F2/30C08L33/08C08L1/28C08L61/28C08L29/04C08L61/32C08J9/08
CPCC08F2/26C08F2/30C08F220/18C08J9/08C08L33/08C08J2401/28C08J2429/04C08J2461/32C08J2461/28C08L2203/14C08L2205/035C08J2333/08C08F220/1804C08L1/28C08L61/28C08L29/04C08L1/286C08L61/32C08F220/14C08F222/02C08F220/281C08F220/1802C08F220/06
Inventor 陆红霞徐亮成章洋薛叙明高炜斌马立波
Owner CHANGZHOU VOCATIONAL INST OF ENG
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