Curable compositions allowing to obtain materials having an optimised performance, and materials obtained from said compositions
A curable composition, and a material obtained by curing the composition, in which the curable composition includes a vinylester polymerisable compound, jointly with a sulphonated polyaromatic thermoplastic polymer, and an N-vinyl lactam, and which is characterised in that it further includes, a first non-vinylester polymerisable compound which includes at least one isocyanurate group bearing at least two (meth)acrylate groups; and a second non-vinylester polymerisable compound which includes at least one carbopolycyclic or heteropolycyclic group bearing at least two (meth)acrylate groups.
1. A curable composition, comprising:
a vinylester polymerisable compound, jointly with a sulphonated polyaromatic thermoplastic polymer and an N-vinyl lactam,
wherein the composition further comprises
a first non-vinylester polymerisable compound which comprises at least one isocyanurate group bearing a at least two (meth)acrylate groups; and
a second non-vinylester polymerisable compound which comprises at least one carbopolycyclic or heteropolycyclic group bearing at least two (meth)acrylate groups.
2. The curable compound according to claim 1 ,
wherein the vinylester polymerisable compound is chosen from among bisphenol A vinylester resins, halogenated bisphenol A vinylester resins, novolac vinylester resins, and vinylester resins comprising at once bisphenolic A units and novolac units.
3. The curable composition according to claim 2 , wherein the vinylester polymerisable compound is an epoxidised bisphenol A diacrylate monomer of formula below (I):
or an oligomer or a prepolymer resulting from a polymerisation of this monomer, or again a blend thereof.
4. The curable compound according to claim 1 , wherein the sulphonated polyaromatic thermoplastic polymer is a polysulfone.
5. The curable composition according to claim 4 , wherein the polysulfone is a polyethersulfone.
6. The curable composition according to claim 1 , wherein the N-vinyl lactam is chosen from among N-vinyl-2-pyrrolidone, N-vinyl-2-piperidone and N-vinyl caprolactam.
7. The curable compound according to claim 6 , wherein the N-vinyl lactam is N-vinyl-2-pyrrolidone.
8. The curable compound according to claim 1 , wherein the first non-vinylester polymerisable compound is a monomer of formula (II) below:
or an oligomer or a prepolymer resulting from a polymerisation of this monomer, or a blend thereof.
9. The curable compound according to claim 1 , wherein the second non-vinylester polymerisable compound is a monomer of formula (III) below:
or an oligomer or a prepolymer resulting from a polymerisation of this monomer, or a blend thereof.
10. The curable composition according to claim 1 , whereinthe curable composition has the following qualitative and quantitative formulation, expressed as mass percentages:
33±5% of an epoxidised bisphenol A diacrylate monomer of formula (I) below:
or of an oligomer or of a prepolymer resulting from a polymerisation of this monomer, or a blend thereof;
10±3% of a polyethersulfone;
15±3% of N-vinyl-2-pyrrolidone;
40±5% of a monomer of formula (II) below:
or of an oligomer or of a prepolymer resulting from a polymerisation of this monomer, or a blend thereof; and
2±1.5% of a monomer of formula (III) below:
or of an oligomer or of a prepolymer resulting from a polymerisation of this monomer, or a blend thereof.
11. The curable composition according to claim 10 , wherein the curable composition has the following qualitative and quantitative formulation, expressed as mass percentages:
33±1% of the epoxidised bisphenol A diacrylate monomer of formula (I) above, or of an oligomer or of a prepolymer resulting from a polymerisation of this monomer, or of a blend thereof;
10±1% of a polyethersulfone;
15±1% of N-vinyl-2-pyrrolidone;
40±1% of the monomer of formula (II) above, or of an oligomer or of a prepolymer resulting from a polymerisation of this monomer, or of a blend thereof; and
2±1% of the monomer of formula (III) above, or of an oligomer or of a prepolymer resulting from a polymerisation of this monomer, or of a blend thereof.
12. A material obtained by curing a curable composition comprising:
a vinylester polymerisable compound, jointly with a sulphonated polyaromatic thermoplastic polymer and an N-vinyl lactam,
wherein the composition further comprises
a first non-vinylester polymerisable compound which comprises at least one isocyanurate group bearing a at least two (meth)acrylate groups; and
a second non-vinylester polymerisable compound which comprises at least one carbolycyclic or heteropolycyclic group bearing at least two (meth)acrylate groups.
13. The material according to claim 12 , wherein said material is an adhesive enabling parts to be assembled with one another,
wherein said parts made of composite materials.
14. The material according to claim 12 , wherein said material is a matrix of composite material of a type including a matrix in which a reinforcement is contained.
15. A composite material, comprising:
a matrix in which a reinforcement is contained,
wherein the matrix is obtained by curing a curable composition comprising:
a vinylester polymerisable compound, jointly with a sulphonated polyaromatic thermoplastic polymer and an N-vinyl lactam,
wherein the composition further comprises
a first non-vinylester polymerisable compound which comprises at least one isocyanurate group bearing a at least two (meth)acrylate groups; and
a second non-vinylester polymerisable compound which comprises at least one carbolycyclic or heteropolycyclic group bearing at least two (meth)acrylate groups.