High-flame-retardant PVC product containing hyperbranched polymer

A hyperbranched polymer, high flame-retardant technology, applied in the field of PVC products, can solve the problems of affecting the stability of PVC, not obvious effect, and reducing the fluidity of PVC.

Inactive Publication Date: 2020-10-20
HUIZHOU AIMSEA NEWWAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, adding aluminum hydroxide or magnesium hydroxide to PVC products can effectively improve the flame retardant performance of the product, but because aluminum hydroxide/magnesium hydroxide is an inorganic substance, the compatibility with PVC is poor, which will make PVC Reduced fluidity, resulting in slower plasticization
[0005] In addition to adding aluminum hydroxide/magnesium as a flame retardant, some manufacturers will use antimony trioxide as a flame retardant, but compared with aluminum/magnesium hydroxide, the cost of antimony trioxide is higher, and it will also affect Stability of PVC
[0006] At present, for the problems of poor fluidity and low plasticizing efficiency caused by magnesium hydroxide/aluminum, a

Method used

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  • High-flame-retardant PVC product containing hyperbranched polymer

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] The purpose of the present invention is to provide a highly flame-retardant PVC product containing hyperbranched polymers, and its technical point is: according to the weight parts of the high flame-retardant PVC product, the PVC product is made of 100 parts by weight of polychloride Vinyl resin, 30 parts by weight of dioctyl terephthalate, 40 parts by weight of light calcium carbonate, 25 parts by weight of hydroxide, 4 parts by weight of calcium zinc stabilizer, 0.5 parts by weight of polyethylene wax and 2 Parts by weight of hyperbranched polymer composition.

[0024] Among them, the density of the hyperbranched polymer is 1.3g / cm 2 , The melting range is 140-160℃.

[0025] Among them, the median particle size of the polyvinyl chloride resin is 250 μm.

[0026] Among them, the molecular weight of dioctyl terephthalate is 375 and the viscosity at 25°C is 55×10 -3 Pa·s.

[0027] Among them, the water content of light calcium carbonate is 0.5 wt%, and the med...

Example Embodiment

[0036] Example 2

[0037] The purpose of the present invention is to provide a highly flame-retardant PVC product containing hyperbranched polymers, and its technical point is: according to the weight parts of the high flame-retardant PVC product, the PVC product consists of 90 parts by weight of polychlorinated Vinyl resin, 20 parts by weight of dioctyl terephthalate, 30 parts by weight of light calcium carbonate, 20 parts by weight of hydroxide, 3 parts by weight of calcium zinc stabilizer, 0.3 parts by weight of polyethylene wax, and 1 Parts by weight of hyperbranched polymer composition.

[0038] Among them, the density of hyperbranched polymer is 1g / cm 2 , The melting range is 160-180℃.

[0039] Among them, the median particle size of the polyvinyl chloride resin is 30 μm.

[0040] Among them, the molecular weight of dioctyl terephthalate is 350 and the viscosity at 25°C is 50×10 -3 Pa·s.

[0041] Among them, the water content of light calcium carbonate is 0.1 wt%, and the median...

Example Embodiment

[0050] Example 3

[0051] The purpose of the present invention is to provide a highly flame-retardant PVC product containing hyperbranched polymers, and its technical point is: according to the weight parts of the high flame-retardant PVC product, the PVC product is made of 110 parts by weight of polychloride Vinyl resin, 40 parts by weight of dioctyl terephthalate, 50 parts by weight of light calcium carbonate, 30 parts by weight of hydroxide, 5 parts by weight of calcium zinc stabilizer, 0.7 parts by weight of polyethylene wax and 3 Parts by weight of hyperbranched polymer composition.

[0052] Among them, the density of the hyperbranched polymer is 1.6g / cm 2 , The melting range is 140-160℃.

[0053] Among them, the median particle size of the polyvinyl chloride resin is 500 μm.

[0054] Among them, the molecular weight of dioctyl terephthalate is 400, and the viscosity at 25°C is 60×10 -3 Pa·s.

[0055] Among them, the water content of light calcium carbonate is 1.0 wt%, and the me...

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Abstract

The invention belongs to the field of PVC products, and particularly discloses a high-flame-retardant PVC product containing a hyperbranched polymer. The high-flame-retardant PVC product containing the hyperbranched polymer, disclosed by the invention, contains 90 to 110 parts by weight of a polyvinyl chloride resin, 20 to 40 parts of dioctyl terephthalate, 30 to 50 parts of light calcium carbonate, 20 to 30 parts of hydroxide, 3 to 5 parts of a calcium-zinc stabilizer, 0.3 to 0.7 part of polyethylene wax and 1 to 3 parts of a hyperbranched polymer. According to the invention, the hyperbranched polymer is used as an additive and is added into the PVC product containing a large amount of magnesium hydroxide/aluminum hydroxide, so that the plasticizing speed of the PVC product is effectivelyincreased, the flowability of the PVC product melt is obviously improved, and the physical properties of the PVC product are not influenced.

Description

technical field [0001] The invention belongs to the field of PVC products, in particular to a highly flame-resistant PVC product containing a hyperbranched polymer. Background technique [0002] PVC is one of the most widely used general-purpose materials in the world. etc. are widely used. [0003] Fire is a very common and very harmful disaster. Fire accidents often occur in daily life. Since most household materials are made of wood or textiles, fire hazards are very high, and PVC Although it has a certain flame retardant function, it can still burn, and it is accompanied by a lot of smoke, so now household PVC products need good flame retardant performance. [0004] At present, there are many flame-retardant PVC products on the market. The most common method is to add a large amount of aluminum hydroxide or magnesium hydroxide to the PVC formula, and compound it with PVC to improve its flame-retardant performance. However, adding aluminum hydroxide or magnesium hydrox...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08L87/00C08K5/12C08K3/26C08K3/22C08K5/098C08K7/26C08K13/04
CPCC08K2003/2227C08K2003/265C08L27/06C08L2201/02C08L2205/035C08L23/06C08L87/00C08K5/12C08K3/26C08K3/22C08K5/098C08K7/26C08K13/04
Inventor 周志鑫严晴严一丰周国庆
Owner HUIZHOU AIMSEA NEWWAY TECH CO LTD
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