Poly1-butylene nucleating agent composition and application thereof

A technology of nucleating agent and composition, which is applied in the field of poly-1-butene nucleating agent composition, can solve the problems of less research on poly-1-butene nucleating agent, etc., and achieve shortened production cycle, less by-products, and crystallization speed Improved effect

Active Publication Date: 2014-10-01
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are relatively few studies on poly-1-butene nucleating agents, which are almost blank at home and abroad.

Method used

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  • Poly1-butylene nucleating agent composition and application thereof
  • Poly1-butylene nucleating agent composition and application thereof
  • Poly1-butylene nucleating agent composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1: the synthesis of nucleating agent

[0068] (a) Synthesis of 9,10-dihydro-9,10-ethylene-anthracene-11,12-dianhydride

[0069] Get 20g (112mmol) anthracene and dissolve in 250ml dichloromethane, at 0 o C divides and adds the anhydrous aluminum chloride of 16.5g (124mmol) several times, then at 0 o Under the condition of C, 11 g (112 mmol) of maleic anhydride was added to the above reaction vessel several times, and stirred overnight at room temperature. The solvent was poured into 350 ml of deionized water, the organic phase was separated, and the aqueous phase was extracted with dichloro. The organic phases were poured together, then washed with deionized water, dried with anhydrous magnesium sulfate, filtered, and the solvent was rotary evaporated, and dried to obtain the desired product.

[0070] 1 H NMR (400MHZ, CDCl 3 )δ7.32 (dd, 2H) 7.28 (dd, 2H), 7.15 (m, 4H) 4.65 (s, 2H), 3.52 (s, 2H)

[0071] (b) Synthesis of 9,10-dihydro-9,10-ethylene-anthrac...

Embodiment 2

[0074] Embodiment 2: Preparation of nucleating agent composition

[0075] The nucleating agent 9,10-dihydro-9,10-ethylene-anthracene-11,12-dioic acid sodium salt in Example 1 was vacuum-dried at 80°C overnight, and then dried at 110°C for 2 hours. The caking agent silica gel (nucleating agent 90wt%) was co-ground, and its particle size was measured.

Embodiment 3

[0076] Embodiment 3: Preparation and determination of poly-1-butene sample

[0077] Add 4ml of white oil to 1kg of poly-1-butene pure material masterbatch, stir well to make a layer of white oil evenly attached to the poly-1-butene particles, and then add the treated 9,10-dihydro-9,10 -Ethylene-anthracene-11,12-dioic acid sodium salt nucleating agent and anti-caking agent silica gel mixture 1g (1000ppm based on the nucleating agent contained therein) fully shake

[0078] uniform. It is extruded on a large screw machine, and then injected into a sample, and its various properties are measured.

[0079] According to the formula ratio in Table 1, the nucleating agent and poly-1-butene were evenly mixed, extruded and pelletized with a twin-screw extruder, and then injection molded into a standard sample. The temperature range of the twin-screw extruder is 175°C-210°C, and the rotation speed is 180r / min. The screw temperature of the injection molding machine is 205°C, the mold t...

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Abstract

The invention discloses a poly1-butylene nucleating agent composition. The poly1-butylene nucleating agent composition comprises 9,10-dihydro-9,10-ethylene-anthracene-11,12-disodium salt (DHEAS) and derivatives thereof. By adopting the poly1-butylene nucleating agent composition, the nucleating capability can be improved well, a glass transition temperature of poly1-butylene is increased, and the poly1-butylene nucleating agent composition has the advantages of low usage amount, low cost, simple preparation technology and the like, so that the poly1-butylene nucleating agent composition is an ideal poly1-butylene nucleating agent. The structural formula of the poly1-butylene nucleating agent composition is described in the specification.

Description

technical field [0001] The present invention relates to poly-1-butene nucleating agent composition and application thereof. The present invention also relates to the poly-1-butene product prepared by the above-mentioned nucleating agent composition. Background technique [0002] Isotactic poly-1-butene has outstanding thermal creep resistance, environmental stress crack resistance and good toughness, and is suitable for making pipes, films and sheets, especially hot water pipes. However, due to the lack of its own structure, poly-1-butene has a large shrinkage rate and a slow crystal transformation rate, which limits its rapid industrial production. [0003] There are two main crystal forms of poly-1-butene: Form I and Form II. Crystal form I is thermodynamically stable, and crystal form II is thermodynamically unstable. Isotactic poly-1-butene will form crystallites of crystal form II after cooling after melting, even in the case of quenching. In order to provide high-e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/20C08K5/098C07C61/39
CPCC07C61/39C07C2603/88C08K3/26C08K3/34C08K3/36C08K5/098C08K9/04C08K13/06C08K2003/265C08K2201/003C08L2205/24C08L23/20
Inventor 李化毅郑涛李倩张辽云胡友良
Owner INST OF CHEM CHINESE ACAD OF SCI
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