Efficient flame-retardant master batch for high-density polyethylene

A technology of high-density polyethylene and flame-retardant masterbatch, which is applied in the manufacture of fire-resistant and flame-retardant filaments, single-component polyolefin artificial filaments, etc., and can solve problems such as poor coupling effect, high price, reactivity, and lack of reactivity. problem, to achieve the effect of reasonable ratio, better anti-oxidation effect and simple preparation method

Inactive Publication Date: 2020-09-15
太仓市华鼎塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Application number 200710000827.2 A preparation method of decabromodiphenylethane and antimony trioxide masterbatch, the coupling agent used is titanate and silane, among which the more suitable filler for silane coupling agent is the one containing more silicic acid components Such as glass fiber, quartz powder and white carbon black, etc., and the organic group on the general silane coupling agent lacks sufficient reactivity with polymers such as polyethylene, polypropylene, polystyrene, ABS resin, etc. In these systems Poor coupling effect
Although titanate coupling agent is effective in treating antimony trioxide powder, its price is higher than that of aluminate coupling agent and its reactivity is not as high as that of aluminate coupling agent.

Method used

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  • Efficient flame-retardant master batch for high-density polyethylene
  • Efficient flame-retardant master batch for high-density polyethylene
  • Efficient flame-retardant master batch for high-density polyethylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The components and parts by weight of 100Kg of the flame retardant masterbatch are: 28 parts by weight of powder polyolefin elastomer, 70 parts by weight of compound flame retardant, 1 part by weight of coupling agent, and 1 part by weight of auxiliary agent.

[0034] Dry the compound flame retardant with a bromine-antimony ratio of 1:1.055 at 100°C for 2 hours, then mix the compound flame retardant with an aluminate coupling agent at 60°C 5 minutes for coating treatment, then the powder polyolefin elastomer and additives and the treated flame retardant were stirred and mixed for 5 minutes, the mixture was added to the twin-screw extruder, and the barrel temperature of the twin-screw extruder was controlled In: 1st interval 80±5°C, 2nd interval 170±5°C, 3rd interval 200±5°C, 4th interval 210±5°C, 5th interval 230±5°C, 6th interval 220±5°C, 7th interval 220±5°C , the eighth interval is 210±5°C, the ninth interval is 200±5°C, and the tenth interval is 190±5°C, extruded an...

Embodiment 2

[0036] The components and parts by weight of 100Kg of the flame retardant masterbatch are: 33 parts by weight of powder polyolefin elastomer, 65 parts by weight of compound flame retardant, 1 part by weight of coupling agent, and 1 part by weight of auxiliary agent.

[0037] First dry decabromodiphenylethane and antimony trioxide, then mix decabromodiphenylethane and antimony trioxide at a ratio of 1:1.055 to form a compound flame retardant, and the ratio of bromine to antimony is 1: The compound flame retardant of 1.055 was dried at 100°C for 2 hours, then the compound flame retardant was coated with aluminate coupling agent at 60°C for 5 minutes, and then the powder Stir and mix the polyolefin elastomer and additives with the treated flame retardant for 5 minutes, feed the mixture into the twin-screw extruder, and control the temperature of the barrel of the twin-screw extruder at: the first interval is 80±5°C, the second Interval 170±5°C, interval three 200±5°C, interval fo...

Embodiment 3

[0039] The components and parts by weight of 100Kg of the flame retardant masterbatch are: 28 parts by weight of polyolefin elastomer, 70 parts by weight of flame retardant, 1 part by weight of coupling agent, and 1 part by weight of auxiliary agent.

[0040] First dry decabromodiphenylethane and antimony trioxide, then mix decabromodiphenylethane and antimony trioxide at a ratio of 1:1.055 to form a compound flame retardant, and the ratio of bromine to antimony is 1: The compound flame retardant of 1.055 was dried at 100°C for 2 hours, then the compound flame retardant was coated with aluminate coupling agent at 80°C for 5 minutes, and then the polyolefin The elastomer and additives are mixed with the flame retardant after coating treatment, and the mixture is added to the twin-screw extruder, and the barrel temperature of the twin-screw extruder is controlled at: the first interval 80 ± 5 ° C, the second interval 170 ±5°C, three intervals 200±5°C, four intervals 210±5°C, fiv...

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Abstract

The invention provides an efficient flame-retardant master batch for high-density polyethylene. The efficient flame-retardant master batch is prepared from components through a double-screw extruder,and the components comprise, by weight, 28-34 parts of a powdery polyolefin elastomer, 65-70 parts of a compound flame retardant, 0.5-1 part of an auxiliary agent and 0.5-1 part of a coupling agent; the coupling agent is an aluminate coupling agent; and the auxiliary agent is an antioxidant. According to the efficient flame-retardant master batch for the high-density polyethylene, the flame retardant adopted in the formula is a compound flame retardant of decabromodiphenyl ethane and antimonous oxide, the bromine-antimony ratio is 1: 1.055, and the proportion is accurate and reasonable; and all the components in the formula have a synergistic effect, so that a very good flame-retardant effect can be achieved under the condition of a very small addition amount. The efficient flame-retardantmaster batch is applied to spinning and film blowing production of HDPE materials under the condition of hardly influencing mechanical properties; and the preparation method is simple, the used equipment is a common water brace twin-screw extruder with very wide applicability, and large-scale production is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a high-efficiency flame-retardant masterbatch for high-density polyethylene. Background technique [0002] At present, as people's safety awareness is getting higher and higher, flame retardant requirements have been put forward for high-density polyethylene (hereinafter referred to as HDPE) safety ropes and safety nets for construction, as well as various tarpaulins for outdoor use. HDPE is a material with very poor combustion performance. When heated, its thermal cracking products are olefins, paraffins, and alicyclic hydrocarbons. Its limiting oxygen index is only 17, which belongs to flammable polymers. Therefore, in order to expand the application of HDPE, it is necessary to carry out flame retardant modification. Although the intumescent halogen-free flame retardant meets the requirements of environmental protection, since the halogen-free intumescent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08K9/10C08K9/04C08K5/03C08K3/22C08K5/134C08K5/526C08K13/06C08J3/22D01F1/07D01F6/46C08J5/18
CPCC08J3/226D01F1/07D01F6/46C08J5/18C08J2423/10C08J2323/06C08K9/10C08K9/04C08K5/03C08K3/2279C08K5/1345C08K5/526C08K13/06
Inventor 叶武
Owner 太仓市华鼎塑料有限公司
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