High temperature resistant halogen-free flame retardant adding type AN (acrylic nitrile)/MAA (methyl acrylic acid) copolymer foam and preparation method thereof
A flame retardant resin and high temperature resistant technology, applied in the field of preparation of modified polymethacrylamide foam, can solve the problems of large amount of addition, affecting the physical properties and mechanical properties of products, etc., and achieve the effect of improving physical properties and mechanical properties
Active Publication Date: 2014-09-03
句容市育达实业投资有限公司
View PDF4 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the amount of smoke generated by inorganic flame retardants is very low and no toxic gases are produced when burned, the addition of large amounts often affects the physical and mechanical properties of the product
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] Preparation of a high temperature resistant halogen-free flame retardant resin-added AN / MAA copolymer foam material, the formula is as follows: 50 parts of methacrylic acid, 50 parts of acrylonitrile, 8 parts of methacrylamide, 1.5 parts of foamed microspheres, 15 parts Parts of halogen-free flame retardant resin, 0.5 parts of tert-butyl peroxyoctanoate, 0.05 parts of azobisisoheptanonitrile, 10 parts of N-methylformamide, 4 parts of allyl methacrylate, 3 parts of maleic imide and 8 parts tert-butyl methacrylate. And prepare polymethacrylimide through the following steps:
[0034] Above-mentioned a kind of flame-retardant type AN / MAA copolymer foam material preparation method step is as follows:
[0035] (1) Mix methacrylic acid, acrylonitrile, methacrylamide, and foamed microspheres 2 , High temperature resistant halogen-free flame retardant resin, adding tert-butyl peroxybenzoate, azobisisoheptanonitrile, N-methylformamide, allyl methacrylate, maleimide, tert-...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
| compressive modulus | aaaaa | aaaaa |
| tensile strength | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a preparation method of a high temperature resistant halogen-free flame retardant adding type AN (acrylic nitrile) / MAA (methyl acrylic acid) copolymer hard foam material. The main raw materials of the flame retardant foam prepared by the preparation method disclosed by the invention is AN and MAA. The method comprises the following steps: adding a high temperature resistant halogen-free flame retardant resin fire retardant while adding an initiator, a foaming agent, a crosslinking agent, a density control agent, a nucleating agent and a liquid seal agent, and carrying out high temperature foaming and thermal treatment to prepare the flame retardant type AN / MAA copolymer hard foam material. The oxygen index of the prepared flame retardant type AN / MAA copolymer hard foam material can achieve 36 and more through test, and the physical property and the mechanical property of the material are greatly improved in comparison with those of the original flame retardant foam. The foam material prepared by the preparation method disclosed by the invention can be widely applied to various fields with a certain requirement on the flame retarding as a filling material or sandwich material.
Description
[0001] technical field [0002] The invention belongs to the field of macromolecular materials, in particular to the preparation technology of modified polymethacrylamide foam. Background technique [0003] AN / MAA copolymer foam is a rigid structural foam with excellent heat resistance, but the material itself does not have flame retardancy. With the increasing demand for rigid foam in the military and civilian markets, the flame retardancy of rigid foam has become a subject of increasing concern. [0004] Currently used flame retardants mainly include inorganic flame retardants such as antimony series, Al(OH) 3 , Mg(OH) 2 , red phosphorus, etc.; organic flame retardants include halogen and phosphorus. Halogenated flame retardants generate a large amount of smoke and produce toxic gases when burned, which is easy to cause secondary pollution. With the enhancement of people's awareness of environmental protection, the amount of halogenated flame retardants has become less ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F220/46C08F220/56C08F220/40C08J9/10C08L101/00C08L33/20B29C44/60B29C71/02
Inventor 鲁平才陈伟
Owner 句容市育达实业投资有限公司