High-heat and high-shear-resistant high-flame-retardant halogen-free flame-retardant compound system and use

1 . A high-heat and high-shear-resistant high-flame-retardant halogen-free flame-retardant compound system, comprising the following components in weight percentages:

40%- 99.9% of aluminum diethylphosphinate,

0.1%- 50% of a poly/mono-phosphorous acid-condensed diphosphite salt,

0-40% of inorganic aluminum phosphite, and

0-10% of a zinc-containing thermally stable compound,

wherein the poly/mono-phosphorous acid-condensed diphosphite salt has a structural formula shown in a formula (I):

wherein, x is an integer of 1-6, n, y, and p are integers of 1-4, and M is Ca, Mg, Al, Zn, Fe, Sn or Ti.

2 . The high-flame-retardant halogen-free flame-retardant compound system according to claim 1 , wherein the aluminum diethylphosphinate has an average particle size D50 satisfying 10 μm<D50<50 μm.

3 . The high-flame-retardant halogen-free flame-retardant compound system according to claim 1 , wherein the poly/mono-phosphorous acid-condensed diphosphite salt has an average particle size D50 satisfying 10 μm<D50<50 μm.

4 . The high-flame-retardant halogen-free flame-retardant compound system according to claim 1 , wherein the inorganic aluminum phosphite has an average particle size D50 satisfying 10 μm<D50<50 μm.

5 . The high-flame-retardant halogen-free flame-retardant compound system according to claim 1 , wherein the zinc-containing thermally stable compound comprises at least one of zinc borate, zinc oxide, and zinc stannate, and has an average particle size D50 satisfying 10 μm<D50<50 μm.

6 . A method of making a glass fiber reinforced material comprising the step of adding the high-flame-retardant halogen-free flame-retardant compound system according to claim 1 to a glass fiber reinforced nylon, a glass fiber reinforced polyester or a glass fiber reinforced POK.

7 . The method according to claim 6 , wherein a mass proportion of a glass fiber in the glass fiber reinforced material is more than 30%.

8 . The method according to claim 6 , wherein the glass fiber reinforced material is the glass fiber reinforced nylon or the glass fiber reinforced polyester, a mass proportion of the high-flame-retardant halogen-free flame-retardant compound system in the glass fiber reinforced material is 10%- 30%, and a flame-retardant rating of the glass fiber reinforced material reaches UL94 V-0, 0.4 mm.

9 . The method according to claim 6 , wherein the glass fiber reinforced material is the glass fiber reinforced POK, a mass proportion of the high-flame-retardant halogen-free flame-retardant compound system in the glass fiber reinforced material is 5%- 20%, and a flame-retardant rating of the glass fiber reinforced material reaches UL94 V-0, 0.4 mm.

10 . The method according to claim 6 , wherein nylon in the glass fiber reinforced nylon comprises at least one of aliphatic polyamide and semi-aromatic polyamide; and polyester in the glass fiber reinforced polyester comprises at least one of PBT and PET.

11 . The method according to claim 7 , wherein the glass fiber reinforced material is the glass fiber reinforced nylon or the glass fiber reinforced polyester, a mass proportion of the high-flame-retardant halogen-free flame-retardant compound system in the glass fiber reinforced material is 10%- 30%, and a flame-retardant rating of the glass fiber reinforced material reaches UL94 V-0, 0.4 mm.

12 . The method according to claim 7 , wherein the glass fiber reinforced material is the glass fiber reinforced POK, a mass proportion of the high-flame-retardant halogen-free flame-retardant compound system in the glass fiber reinforced material is 5%- 20%, and a flame-retardant rating of the glass fiber reinforced material reaches UL94 V-0, 0.4 mm.

13 . The method according to claim 7 , wherein nylon in the glass fiber reinforced nylon comprises at least one of aliphatic polyamide and semi-aromatic polyamide; and polyester in the glass fiber reinforced polyester comprises at least one of PBT and PET.