Corrosion-resistant plastic particles and preparation method thereof

A plastic granule and corrosion-resistant technology, which is applied in the field of corrosion-resistant plastic granule and its preparation, can solve the problems that plastic strips cannot be cooled, plastic granules are not corrosion-resistant, and cooling efficiency is not high, so as to improve radiation resistance stability and high-temperature volatilization The effect of improving flame retardancy and anti-aging performance

Inactive Publication Date: 2020-11-17
亳州丰色信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing plastic granules are not corrosion-resistant, have poor heat resistance, and are expensive to manufacture
At the same time, in the process of preparing plastic particles, it is necessary to cool and dry the extruded plastic strips. In the prior art, the plastic strips are usually cooled through a cooling water tank, so that the cooling efficiency is not high, and it is impossible to ensure that each plastic strip is get even and adequate cooling

Method used

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  • Corrosion-resistant plastic particles and preparation method thereof
  • Corrosion-resistant plastic particles and preparation method thereof
  • Corrosion-resistant plastic particles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A corrosion-resistant plastic particle prepared from the following parts by weight of raw materials: 60 parts of isophthalic acid, 35 parts of ethylene glycol, 15 parts of phenolphthalein, 1 part of irradiation crosslinking accelerator, modified anti-aging flame retardant blend 2 parts, 1 part weathering agent, 1 part plasticizer, 1 part catalyst, 1 part antioxidant, 1 part stabilizer;

[0033] Wherein, the corrosion-resistant plastic particles are prepared through the following steps:

[0034] Step 1: Add isophthalic acid, ethylene glycol phenolphthalein, catalyst, and antioxidant into the reactor, stir, and then heat to carry out the esterification reaction. The temperature of the esterification reaction is 240℃, when the esterification reaches more than 95% The esterification reaction is over; after the esterification reaction is over, a stabilizer is added to the obtained product, and the polycondensation reaction is carried out under vacuum. The polycondensation reactio...

Embodiment 2

[0039] A corrosion-resistant plastic particle prepared from the following parts by weight of raw materials: 75 parts of isophthalic acid, 50 parts of ethylene glycol, 20 parts of phenolphthalein, 3 parts of radiation crosslinking accelerator, modified anti-aging flame retardant blend 4 parts, 3 parts weathering agent, 2 parts plasticizer, 2 parts catalyst, 2 parts antioxidant, 2 parts stabilizer;

[0040] Wherein, the corrosion-resistant plastic particles are prepared through the following steps:

[0041] Step 1: Add isophthalic acid, ethylene glycol phenolphthalein, catalyst, and antioxidant into the reactor, stir, and then heat to carry out the esterification reaction. The temperature of the esterification reaction is 250℃, when the esterification reaches more than 95% The esterification reaction is over; after the esterification reaction is over, a stabilizer is added to the obtained product, and the polycondensation reaction is carried out under vacuum. The polycondensation rea...

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Abstract

A phenolphthalein third monomer is introduced in the preparation process of a master batch, and a flexible diethanol part in a polyester macromolecular chain is replaced by a rigid phenolphthalein group, so that a segment formed by connecting a rigid diacid monomer and a rigid phenolphthalein monomer is formed, the rigidity and crystallization performance of the whole molecule are enhanced, and the glass-transition temperature and melting point are improved; furthermore, an irradiation crosslinking process is adopted to improve the heat resistance and corrosion resistance of the plastic; flame-retardant materials such as graphene, titanium dioxide and halloysite nanotubes in a modified anti-aging flame-retardant system and anti-aging materials such as wollastonite acicular fibers form a composite synergistic effect, and the flame retardance and aging resistance of corrosion-resistant plastic particles are greatly improved (according to GB 1035-70). The maximum decomposition temperatureof the corrosion-resistant plastic particles is 290-298 DEG C.

Description

Technical field [0001] The invention relates to the technical field of plastic particle preparation, in particular to a corrosion-resistant plastic particle and a preparation method thereof. Background technique [0002] Plastic is a high molecular compound polymerized by monomer as raw material through addition polymerization or polycondensation reaction, commonly known as plastic or resin. The composition and shape can be changed freely. It is composed of synthetic resin and fillers, plasticizers, stabilizers, and lubricants. , Pigment and other additives. [0003] The existing plastic particles are not resistant to corrosion, have poor heat resistance and high manufacturing costs. At the same time, it is necessary to cool and dry the extruded plastic strips during the preparation of the plastic pellets. The prior art usually cools the plastic strips through a cooling water tank, so the cooling efficiency is not high, and it cannot guarantee that each plastic strip is Get unifo...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K3/34C08K7/26C08K3/04C08K3/22C08K7/10C08K9/00C08K9/02C08K5/20C08K13/06C08J3/24C08J3/28C08G63/197B29B9/06B29C48/88B29C48/885
CPCB29B9/06B29C48/885B29C48/911C08G63/197C08J3/24C08J3/28C08J2367/02C08K3/22C08K3/346C08K5/20C08K7/10C08K7/26C08K9/00C08K9/02C08K13/06C08K2003/2241C08L2201/02C08L2201/08C08K3/042C08L67/02
Inventor 李丹丹孙亚萍
Owner 亳州丰色信息科技有限公司
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