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Fire-retardant and heat-resistant PPO (poly-p-phenylene oxide) alloy and preparation method thereof

An alloy and heat-resistant technology, which is applied in the field of flame-retardant and heat-resistant PPO alloys and their preparation, can solve the problems of high flame retardancy, high toughness requirements, and unmet requirements, and achieve improved flame retardancy, good fluidity, and improved warping effect

Inactive Publication Date: 2019-03-08
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN103044895A discloses a high glow-wire halogen-free flame-retardant reinforced PPO / PA alloy and its preparation method. By preparing PPO / PA alloy, adding phosphorus-based flame retardant, expansion agent and alkali-free glass fiber, the glow wire can reach ≥850°C , the flame retardant grade is UL-94V0 grade, which has not reached the UL94-5VA grade, and the impact strength is only about 100J / M. It is difficult to meet the requirements in specific occasions with high requirements for flame retardancy and toughness.
[0008] CN 103087412 B discloses a high fluidity glass fiber reinforced polypropylene composite material. The PP composite material of the present invention has excellent mechanical properties and can replace engineering plastics in water pumps, automobiles and other fields requiring high fluidity and high performance. However, the glass fiber powder of this invention is only used as a filling, and does not involve research on flame retardant modification and whether it is beneficial to flame retardant performance

Method used

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  • Fire-retardant and heat-resistant PPO (poly-p-phenylene oxide) alloy and preparation method thereof
  • Fire-retardant and heat-resistant PPO (poly-p-phenylene oxide) alloy and preparation method thereof
  • Fire-retardant and heat-resistant PPO (poly-p-phenylene oxide) alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0056] This embodiment provides a flame-retardant and heat-resistant PPO alloy, in parts by weight, the formula is as follows:

[0057] PPO resin

85

PA6 resin

15

Compound powder

5

flame retardant

10

Compatibilizer

10

antioxidant

0.4

[0058] PPO, number average molecular weight is 25000, PA6, number average molecular weight is 40000.

[0059] In the composite powder, the mass ratio of barium sulfate, talcum powder, and glass fiber powder is 1:1:5, and the weight of KH550 accounts for 0.3% of the total weight of the composite powder. The compound powder mixing process is as follows: first put the glass fiber powder and talc powder into the low-speed mixer in proportion, add KH550, mix at a speed of 100r / min for 3min, and then add barium sulfate and mix at a speed of 100r / min for 5min. The flame retardant is resorcinol bis(diphenyl phosphate), melamine cyanurate, and triphenylphosphine mixed in a mass ratio of 1...

Embodiment 2

[0064] This embodiment provides a flame-retardant and heat-resistant PPO alloy, in parts by weight, the formula is as follows:

[0065] PPO resin

80

PA6 resin

20

Compound powder

10

flame retardant

11

Compatibilizer

11

antioxidant

0.5

[0066] PPO, number average molecular weight is 37500, PA6, number average molecular weight is 55000.

[0067] In the composite powder, the mass ratio of barium sulfate, talcum powder, and glass fiber powder is 1:1:5, and the weight of KH550 accounts for 0.3% of the total weight of the composite powder. The compound powder mixing process is as follows: first put the glass fiber powder and talc powder into the low-speed mixer in proportion, add KH550, mix at a speed of 150r / min for 3 minutes, and then add barium sulfate and mix at a speed of 150r / min for 5 minutes. The flame retardant is resorcinol bis(diphenyl phosphate), melamine cyanurate, and triphenylphosphine mixed in a mass...

Embodiment 3

[0072] This embodiment provides a flame-retardant and heat-resistant PPO alloy, in parts by weight, the formula is as follows:

[0073] PPO resin

75

PA6 resin

25

Compound powder

15

flame retardant

12

Compatibilizer

12

antioxidant

0.6

[0074] PPO, number average molecular weight is 50000, PA6, number average molecular weight is 70000.

[0075] The compound powder is medium, the mass ratio of barium sulfate, talc powder, and glass fiber powder is 1:1:5, and the weight of KH550 accounts for 0.3% of the total weight of the compound powder. The compound powder mixing process is as follows: first put the glass fiber powder and talc powder into the low-speed mixer in proportion, add KH550, mix at a speed of 200r / min for 3min, and then add barium sulfate and mix at a speed of 200r / min for 5min. The flame retardant is resorcinol bis(diphenyl phosphate), melamine cyanurate, and triphenylphosphine mixed in a mass ratio ...

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Abstract

The invention relates to a fire-retardant and heat-resistant PPO alloy. The fire-retardant and heat-resistant PPO is prepared from raw materials including, by weight part, 55-85 parts of PPO resin, 15-45 parts of PA6 (polyamide 6) resin, 5-35 parts of compound powder, 10-16 parts of fire-retardant agent, 10-16 parts of compatilizer and 0.4-1 part of antioxidant agent, wherein the total weight partoccupied by the PPO resin and the PA6 resin is 100 parts, and the compound powder is formed by premixing barium sulfate, talcum powder, glass fiber powder and silane coupling agent KH550. The fire-retardant and heat-resistant PPO achieves a fire-retardant grade of UL94-5VA and meanwhile is high in heat resistance and tenacity.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant and heat-resistant PPO alloy and a preparation method thereof. Background technique [0002] Polyphenylene ether (PPO or PPE), the chemical name is poly 2,6-dimethyl-1,4-phenylene ether, also known as polyphenylene oxide or polyphenylene ether. PPO is an engineering plastic containing benzene rings in the main chain, which has excellent mechanical strength, stress relaxation resistance, creep resistance, heat resistance, water resistance, water vapor resistance, and dimensional stability, but pure PPO resin impacts Poor toughness, high melt viscosity, poor processability, usually modified by alloying. [0003] PA6, commonly known as nylon (Nylon) 6, English name Polyamide 6, it is a general term for polymers containing amide groups in the repeating unit of the main chain of the macromolecule. [0004] CN101302336A discloses a flame-retardant PPO / PA alloy and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L77/02C08L23/08C08L35/06C08K9/06C08K3/30C08K3/34C08K7/14C08K5/523C08K5/3492C08K13/06C08J3/20
CPCC08L71/12C08J3/203C08J2371/12C08J2423/08C08J2435/06C08J2477/02C08K2003/3045C08L2201/02C08L2201/08C08L2205/035C08L77/02C08L23/0884C08L35/06C08K9/06C08K3/30C08K3/34C08K7/14C08K5/523C08K5/34928C08K13/06
Inventor 易庆锋廖虎辉王灿耀方安平桑杰
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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