Solvent free solid material
A solid material can be prepared from a liquid precursor in solvent free conditions.
1. A solid, solvent-free solid material consisting essentially of:
a polysiloxane having a cross-linked polymer matrix having a density of from 0.99 g/cc to 1.25 g/cc, a hardness from Shore D35 to Shore D85, and a flexural strength of up to 3 ksi, the composition being free of ester, carbonate, carbamate or urea linkages.
2. A solid, solvent-free product consisting essentially of:
a polysiloxane having a cross-linked polymer matrix having a density of from 0.99 g/cc to 1.25 g/cc, a hardness from Shore D35 to Shore D85, and a flexural strength of up to 3 ksi, the composition being free of ester, carbonate, carbamate or urea linkages, wherein the composition has a flame resistance of UL-VO without any fire-retardant additives.
3. A solid, solvent-free composition comprising:
a polysiloxane having a cross-linked polymer matrix having a density of from 0.99 g/cc to 1.25 g/cc, a hardness from Shore D35 to Shore D85, and a flexural strength of up to 3 ksi, the composition being free of ester, carbonate, carbamate or urea linkages, further comprising fibers to form a composite composition having a flexural strength of 40 ksi to 140 ksi.
4. A method of synthesizing a solid material in the absence of solvent comprising:
mixing liquid components having a polysiloxane in the absence of a solvent to form a premixture, the premixture including between 2 and 50% addition reaction cross-linkable groups of the liquid components; and
crosslinking the premixture in the absence of a solvent to form a solid structure free of ester, carbonate, carbamate or urea linkages.
5. The method of claim 4 , further comprising adding a catalyst, light, heat, or a combination thereof to the premixture.
6. The method of claim 4 , wherein the premixture includes between 5 and 40% addition reaction cross-linkable groups of the liquid components.
7. The method of claim 4 , wherein the addition reaction cross-linkable groups are vinyl, allyl, propargyl or ethynyl groups.
8. A method of synthesizing a solid material in the absence of solvent comprising:
mixing a first and a second liquid component in the absence of a solvent to form a premixture, the first component consisting of a polysiloxane, the second component including addition reaction cross-linkable groups, wherein the addition reaction groups are 5-40% of the second component; and
crosslinking the premixture in the absence of a solvent to form a solid structure free of ester, carbonate, carbamate or urea linkages.
9. The method of claim 8 , wherein the addition reaction cross-linkable groups are selected from the group consisting of vinyl, allyl, propargyl and ethynyl groups.